February 1991 v.42 n.1

Cover: Superimposed on a photograph of the optical modulator are a simulated light beam (blue) and microwave energy (yellow) interacting in the modulator (green region) to produce a modulated light beam, represented by a wavy blue line.

High-Speed Lightwave Component Analysis to 20 GHz. A new family of instruments – analyzer, test set, sources, receivers, and modulator – characterizes electrical, electrooptical, and optical components of fiber optic communications systems at modulation rates to 20 GHz, by Daniel R. Harkins, Paul R. Hernday, Roger W. Wong, pg 6-13. 8703A, 83420A, 83421A, 83422A, 83423A, 83424A, 83425A.

Design of a 20-GHz Lightwave Component Analyzer. The HP 8703A is a fully integrated and calibrated instrument for lightwave component characterization. It offers a choice of wavelengths and laser types, both internal and external, by Paul R. Hernday, Geraldine A. Conrad, Michael G. Hart, Rollin F. Rawson, pg 13-22. 8703A.

Measurement Capabilities of the HP 8703A Lightwave Component Analyzer and the HP 71400C Lightwave Signal Analyzer, by Jack Dupre, Roger Wong, pg 17-18

20-GHz Lightwave Test Set and Accessories. With this lightwave test set and a compatible HP microwave network analyzer, users have the same key 20-GHz lightwave component analysis capabilities as with the integrated HP 8703A analyzer. The microwave network analyzer can still be used for its normal functions, by Joel P. Dunsmore, John V. Vallelunga, pg 23-33. 83420A.

Accuracy Considerations and Error Correction Techniques for 20-GHz Lightwave Component Analysis. An understanding of factory calibration techniques, system capabilities, and device-under-test sensitivities can result in more accurate and repeatable measurements using the HP 8703A lightwave component analyzer, by Daniel R. Harkins, Michael A. Heinzelman, pg 34-40

Development of an Optical Modulator for a High-Speed Lightwave Component Analyzer. The design and characterization of the first integrated optic modulator for commercial instrument application are described, including the advantages of titanium-in-diffused lithium niobate, device geometries for both phase modulators and Mach-Zehnder intensity modulators, stability considerations including bias drift and acoustic resonances, wavelength sensitivity, packaging and pigtailing, reliability and testing, by David J. McQuate, Roger L. Jungerman, pg 41-45. 8703A.

A High-Performance Optical Isolator for Lightwave Systems. This compact, rugged, two-stage design uses birefringent rutile crystals and Bi-YIG films to achieve high isolation, low insertion loss, high return loss, and polarization independence, by Harry Chou, Kok-Wai Chang, Siegmar Schmidt, Wayne V. Sorin, Jimmie L. Yarnell, Steven A. Newton, pg 45-50

A Broadband, General-Purpose Instrumentation Lightwave Converter. Converting lightwave signals with wavelengths of 1200 to 1600 nanometers to electrical signals, this device serves as an optical front end for spectrum analyzers, network analyzers, bit error rate testers, and oscilloscopes, by Christopher M. Miller, Roberto A. Collins, pg 51-57. 11982A.

A Lightwave Multimeter for Basic Fiber Optic Measurements. This new instrument can replace separate optical power meters, dedicated loss test sets, and stable light sources for measurements of absolute power, relative power, and loss, by Bernd Maisenbacher, Wolfgang Reichert, pg 58-63. 8153A.

Design of a Series of High-Performance Lightwave Power Sensor Modules. The power sensor modules for the HP 8153A lightwave multimeter feature a new optical interface, new detectors, an analog-to-digital converter based on a voltage-to-frequency converter, and a custom gate array. They offer excellent absolute accuracy and fast autoranging, by Jochen Rivoir, Emmerich Muller, Horst Schweikardt, pg 63-69

Calibration of Fiber Optic Power Meters. This paper describes the proposed IEC standard and HP’s implementation, by Christian Hentschel, pg 70-72

Semiconductor Laser Sources with Superior Stability for Optical Loss Measurements. Temperature stabilization and output power control provide excellent stability in the plug-in laser source modules for the HP 8153A lightwave multimeter, by Frank A. Maier, pg 73-76

Lightwave Multimeter Firmware Design. Flexibility and modularity were challenges in the firmware development of the HP 8153A lightwave multimeter. Built-in applications software automates many commonly needed measurements, by Wilfried Pless, Michael Pott, Robert Jahn, pg 77-83

Authors February 1991: Roger W. Wong, Paul R. Hernday, Michael [Mike] G. Hart, Rollin [Fred] F. Rawson, Geraldine [Gerry] A. Conrad, Joel P. Dunsmore, John V. Vallelunga, Daniel [Dan] R. Harkins, Michael [Mike] A. Heinzelman, David [Dave] J. McQuate, Roger L. Jungerman, Kok-Wai Chang, Siegmar Schmidt, Wayne V. Sorin, Jimmie L. Yarnell, Harry Chou, Steven [Steve] A. Newton, Christopher [Chris] M. Miller, Roberto A. Collins, Bernd Maisenbacher, Wolfgang Reichert, Jochen Rivoir, Horst Schweikardt, Emmerich Muller, Christian Hentschel, Frank A. Maier, Wilfried Pless, Michael  Pott, Robert Jahn, Mark W. Champine, pg 84-87

A Visual User Interface for the HP-UX and Domain Operating Systems. This graphical user interface provides a friendly and pleasant front end for the HP-UX and Domain operating systems. It makes these subsystems less intimidating for new users and at the same time provides features that appeal to experienced users, by Mark A. Champine, pg 88-99

Open Dialogue, pg 93

HP Visual User Interface, Version 2.0, by David A. Williams, pg 97-98

April 1991 v.42 n.2

Cover: In the background is a photomicrograph of a microwave monolithic integrated circuit. In the foreground are examples of thick-film and thin-film microwave hybrid microcircuits, waveguide components, and various amplifier, multiplier and modulator microcircuit assemblies

A Family of High-Performance Synthesized Sweepers. Eleven models offer frequency coverage to 50 GHz in coax, extendable to 100 GHz in waveguide with millimeter heads. Swept frequency accuracy is ten times better than previous designs. A menu-based user interface simplifies operation, by James E. Bossaller, Roger P. Oblad, John R. Regazzi, pg 6-16. 8360.

Designing for Low Cost of Ownership, by James R. Stead, pg 10-11

Strife Testing the Alphanumeric Display, by James R. Stead, pg 13

Front Panel Designed for Manufacturability, by James E. Bossaller, pg 15

Built-in Synthesized Sweeper Self-Test and Adjustments. A combination of hardware features and firmware routines makes it possible to isolate most failures to the assembly level and make many adjustments without external test equipment, by Michael J. Seibel, pg 17-23. 8360.

Automatic Frequency Span Calibration, pg 19

Accessing a Power Meter for Calibration, pg 22

A High-Performance Sweeper Output Power Leveling System. A feedforward ALC design gives HP 8360 sweepers improved flatness, power accuracy, and modulation performance. Factory calibration techniques minimize measurement errors so as not to degrade the improved specifications, by Glen M. Baker, Mark N. Davidson, Lance E. Haag, pg 24-30

Mismatch Error Calculation for Relative Power Measurements with Changing Source Match, pg 28-29

A 0.01-to-40-GHz Switched Frequency Doubler. This microcircuit doubler has a passthrough mode for 0.01 to-20-GHz input signals and a doubler mode for 20 to 40 GHz. An integrated RF switch changes modes. Slotline filters reduce spurious outputs to -40dBc or less, by James R. Zellers, pg 31-33. 8630.

A High-Speed Microwave Pulse Modulator. This optional fast pulse modulator uses an unequally spaced diode topology to achieve a wide bandwidth and a high on-off ratio without resorting to performance-limiting diode saturation, by Mary K. Koenig, pg 34-36. 8360.

New Technology in Synthesized Sweeper Microcircuits. A new packaging technology using thick-film hybrids and contacts integral to the package simplifies testing and rework and reduces RFI. New circuit designs include a triple balanced mixer and quasi-elliptic low-pass filters. New approaches reduce video feedthrough and harmonic generation, by Ronald C. Blanc, Richard S. Bischof, Patrick B. Harper, pg 36-46. 8360.

Modular Microwave Breadboard System, by Stan Bischof, pg 41

Quasi-Elliptic Low-Pass Filters, by Stan Bischof, pg 44-45

DC-to-50-GHz Programmable Step Attenuators. Based on HP’s proven edgeline technology, these attenuators provide the HP 8360 sweepers with up to 90 dB of attenuation in 10-dB steps, by David R. Veteran, pg 47-49. 8360, 33324/26/27.

50-to-110-GHz High-Performance Millimeter-Wave Source Modules. State-of-the-art microcircuit technologies and development tools were employed to produce a W-band amplifier tripler, a V-band amplifier doubler, an R-band amplifier doubler, and a coupler detector for two new frequency multiplier modules, by Giovonnae F. Anderson, Mohamed M. Sayed, pg 50-64. 83557A, 83558A.

The Use of the HP Microwave Design System in the W-Band Tripler Design, by Giovonnae Anderson, pg 53-54

The Use of HP ME 10/30 in the W-Band Tripler Design, by Roy Marciulionis, pg 57

Flatness Correction, by Lon Dearden, pg 59

High-Power W-Band Source Module, by Mohamed Sayed, pg 61

An Instrument for Testing North American Digital Cellular Radios. The HP 11846A is designed to produce filtered p/4 DQPSK modulated I and Q baseband signals needed to test digital cellular radios, by David M. Hoover, pg 65-72. 11846A.

HP 11846A Filtering Technique, pg 71-72

Measuring the Modulation Accuracy of p/4 DQPSK Signals for Digital Cellular Transmitters. Using digital signal processing techniques, this software accurately verifies the RF performance of digital cellular transmitters conforming to the North American Dual-Mode Cellular System standard, by Raymond A. Birgenheier, pg 73-82 . 11847A.

A Test Verification Tool for C and C++ Programs. The HP Branch Validator provides an automated tool that enables software developers to test and verify the branch coverage of their modules as they are created, by David L. Neuder, pg 83-92

Authors April 1991: Roger P. Oblad, James [Jim] E. Bossaller, John R. Regazzi, Michael [Mike] J. Seibel, Lance E. Haag, Mark N. Davidson, Glen M. Baker, James [Jim] R. Zellers, Mary K. Koenig, Ronald [Ron] C. Blanc, Richard [Stan] S. Bischof, Patrick [Pat] B. Harper, David [Dave] R. Veteran, Mohamed M. Sayed, Giovonnae F. Anderson, David [Dave] M. Hoover, Raymond [Ray] A. Birgenheier, David [Dave] L. Neuder, pg 93-95

June 1991 v.42 n.3

Cover: Two HP 48SX scientific expandable calculators can use their infrared input/output link to exchange data and programs along with a serial RS-232 cable link to a personal computer.

HP 48SX Scientific Expandable Calculator: Innovation and Evolution. Many of the features of this advanced handheld calculator have evolved from its predecessors, the HP 41C and HP 28S. Others, such as its unit management system, are new, by William C. Wickes, Charles M. Patton, pg 6-12

The HP 48SX Interfaces and Applications. The HP 48SX scientific expandable calculator provides support for multiple applications, both built-in and externally developed, with customized user interfaces. The Equation-Writer and interactive plotting are two of the built-in applications, by Diana K. Byrne, Robert W. Jones, Patrick J. Megowan, Gabe L. Eisenstein, Ted W. Beers, pg 13-21

HP Solve Equation Library Application Card. The card contains a library of 315 equations, the periodic table of the elements, a constants library, a multiple equation solver, a finance application, and engineering utilities, by Eric L. Vogel, pg 22-25. 48SX.

Hardware Design of the HP 48SX Scientific Expandable Calculator. Leveraging an earlier design resulted in prototypes with 90% production tooled parts only nine months after the start of the project. The HP 48SX includes an 8-line-by-22 character super-twisted nematic liquid crystal display, two expansion ports for ROM or battery-backed RAM cards, and two I/O ports: RS-232 and infrared, by M. Jack Muranami, James P. Dickie, Preston D. Brown, Mark A. Smith, Lester S. Moore, Thomas B. Lindberg, David L. Smith, pg 25-34

Industrial Design of the HP 48SX Calculator, by Michael Derocher, pg 27-28

HP 48SX Custom Integrated Circuit, by Preston D. Brown, pg 30

Mechanical Design of the HP 48SX Memory Card and Memory Card Connector, by M. Jack Muranami, pg 32-33

The HP 48SX Calculator Input/Output System. An RS-232 link allows communication with personal computers. An infrared link provides for printing and for two-way calculator-to-calculator communication, by Steven L. Harper, Robert S. Worsley, pg 35-40

Manufacturing the HP 48SX Calculator. Sharing manufacturing processes with earlier, simpler calculators shortened development time and improves manufacturing efficiency. The HP 48SX and the simpler calculators also share the same production line at the same time – a concept known as coproduction, by Richard W. Riper, pg 40-43

A 10-Hz-to-150-MHz Spectrum Analyzer with a Digital IF Section. The HP 3588A’s digital resolution bandwidth filters offer better shape factors and can be swept four times faster than their analog counterparts. Narrowband zoom measurements using fast Fourier transform analysis can be hundreds of times faster. Extensive self-calibration, a help system with hypertext, and adaptive data acquisition also improve performance, by James H. Cauthorn, Kirsten C. Carlson, Roy L. Mason, Eric J. Wicklund, Jay M. Wardle, Timothy L. Hillstrom, Joseph F. Tarantino, pg 44-60

Spectrum Analyzer Self-Calibration, by Timothy L. Hillstrom, Joseph F. Tarantino, pg 47-48

Adaptive Data Acquisition, by James H. Cauthorn, pg 51

Help System with Hypertext, by Mark M. Smith, pg 53-54

User Interface Compiler, Bryan P. Murray, pg 57-58

Authors June 1991: William [Bill] C. Wickes, Charles M. Patton, Ted W. Beers, Diana K. Byrne, Robert [Max] W. Jones, Gabe L. Eisenstein, Patrick [Pat] J. Megowan, Eric L. Vogel, Mark A. Smith, Lester [Les] S. Moore, James [Jim] P. Dickle, Preston D. Brown, David [Dave] L. Smith, Thomas [Tom] B. Lindberg, M. Jack Muranami, Steven [Steve] L. Harper, Robert [Bob] S. Worsley, Richard [Rick] W. Riper, Eric J. Wicklund, Joseph [Joe] F. Tarantino, James [Jim] H. Cauthorn, Kirsten C. Carlson, Jay M. Wardle, Timothy [Tim] L. Hillstrom, Roy L. Mason, Rex Backman, Douglas [Doug] Daetz, William [Bill] P. Carmichael, Edith Wilson, Spencer B. Graves, David Lubkin, John W. Goodnow, Ronald [Ron] F. Richardson, pg 60-64

Easy-to-Use Performance Tools with a Consistent User Interface Across HP Operating Systems. By involving customers in the product development process and incorporating their feedback into the product, HP GlancePlus has eliminated the mystique commonly associated with performance tools. Exception-based reporting displays only the interesting data, by Rex A. Backman, pg 65-70

Design Prototyping for HP GlancePlus, by Joe Thomas, pg 69

The Performance Tool Quadrant, by Rex Backman, pg 70

Improving the Product Development Process. To define, design, and product products and services that will be successful in the marketplace, it’s necessary to understand the product development process and employ tools to measure and improve the process, by Douglas Daetz, William P. Carmichael, Edith Wilson, Spencer B. Graves, pg 71-76

DSEE: A Software Configuration Management Tool. HP Apollo provides a software tool that helps to manage development and maintenance of the many components that make up large-scale software systems, by David C. Lubkin, pg 77-83. Domain Software Engineering Environment.

A Mechanism to Support Parallel Development via RCS. HP’s Imaging Systems Division uses the HP-UX revision control system utility, RCS, to implement a configuration management system that allows stable, released software to remain unchanged while modifications are made to some of its components, by John W. Goodnow, pg 84-89

Building and Managing an Integrated Project Support Environment. HP’s Roseville Networks Division has developed an integrated, cost-effective computing environment that fosters cooperative computing and provides R&D engineers with easy access to the tools and methodologies for product development, by Ronald F. Richardson, pg 90-96. HP-UX.

October 1991 v.42 n.4

Cover: HP’s Component Monitoring System

Introduction to the HP Component Monitoring System. This fourth-generation patient monitoring system offers a set of hardware and software building blocks from which functional modules are assembled to tailor the system to the application and the patient, by Christoph Westerteicher, pg 6-10

Medical Expectations of Today’s Patient Monitors, by Frank Rochlitzer, pg 9

Component Monitoring System Hardware Architecture. Up to 23 function cards residing in a computer module communicate over a message passing bus. The computer module, the display, and the parameter modules that measure vital signs can be in separate locations as needed by the application, by Christoph Westerteicher, Werner E. Heim, pg 10-13

Component Monitoring System Software Architecture. A modular design leads to a complex but easily manageable system that ensures economical resource utilization, by Martin Reiche, pg 13-18

Component Monitoring System Software Development Environment, pg 15

Component Monitoring System Parameter Module Interface. This interface is the link between the component Monitoring System computer module and the patient parameter modules. It provides fast response, optimum use of the available bandwidth, configuration detection, and parameter module synchronization, by Winfried Kaiser, pg 19-21

Measuring the ECG Signal with a Mixed Analog-Digital Application-Specific IC. Putting the ECG data acquisition subsystem into a Component Monitoring System parameter module mandates high-density packaging and low power consumption, and was only possible by implementing major elements of the circuit in a large mixed analog-digital ASIC, by Wolfgang Grossbach, pg 21-24

A Very Small Noninvasive Blood Pressure Measurement Device. This small assembly covers the entire blood pressure measurement spectrum from neonates to adults. The packaging of the air pump assembly makes several contributions to the objectives, by Rainer Rometsch, pg 25-26

A Patient Monitor Two-Channel Stripchart Recorder. Small enough to fit in a double-width HP Component Monitoring System parameter module, this recorder embodies simplicity of design, a highly tooled mechanism, and sophisticated printhead power management, by Leslie Bank, pg 26-28

Patient Monitor Human Interface Design. A design based on human factors leads to an intuitive and easy-to-use human interface for the HP Component Monitoring System, by Gerhard Tivig, Wilhelm Meier, pg 29-36

Globalization Tools and Processes in the HP Component Monitoring System. Software design and localization are decoupled. All languages are treated in the same way. A database contains the text strings for all languages, and automated tools aid the translator, by Gerhard Tivig, pg 37-40

The Physiological Calculation Application in the HP Component Monitoring System. This application converts raw real-time data into derived values the clinician can use to assess the patient’s hemodynamic, oxgenation, and ventilatory condition, by Paul Johnson, Steven J. Weisner, pg 40-43

Mechanical Implementation of the HP Component Monitoring System. The part count and the number of different parts are dramatically lower than for previous designs. Fewer than ten vendors are used for purchased mechanical parts, by Erwin Flachslander, Karl Daumuller, pg 44-48

An Automated Test Environment for a Medical Patient Monitoring System. The AUTOTEST program controls a keypusher and patient simulators to automate the testing of the software for the HP Component Monitoring System, by Dieter Goring, pg 49-52

Production and Final Test of the HP Component Monitoring System. A vertically oriented material flow minimizes handling and simplifies customization. Automated final test systems minimize human errors and collect data for monitoring process quality, by Otto Schuster, Joachim Weller, pg 52-54

Calculating the Real Cost of Software Defects. Using data from a well-established software metrics database and an industry profit loss model, a method is developed that computes the real cost of dealing with software defects, by William T. Ward, pg 55-58

A Case Study of Code Inspections. The code inspection process is a tool that can be used early in the software development cycle to help improve the quality of software products and the productivity of development engineers, by Mark E. Boles, Frank W. Blakely, pg 58-63

Authors October 1991: Christoph [Chris] Westerteicher, Werner E. Heim, Martin Reiche, Winfried Kaiser, Wolfgang Grossbach, Rainer Rometsch, Leslie [Les] Bank, Gerhard Tivig, Wilhelm Meier, Steven [Steve] J. Weisner, Paul Johnson, Karl Daumuller, Erwin Flachslander, Dieter Goring, Otto Schuster, Joachim Weller, William [Jack] T. Ward, Frank W. Blakely, Mark E. Boles, Larry Shintaku, Michael [Mike] B. Raynham, Douglas [Doug] M. Thom, Marilyn J. Lang, Gary W. Lum, Thomas Tom, Irvin R. Jones, Jr., Christophe Grosthor, Viswanathan [Suri] S. Narayanan, Philip [Phil] Garcia, John D. Graf, David [Dave] W. Blevins, Christopher [Chris] A. Bartholomew, pg 64-68

The HP Vectra 486 Personal Computer. The HP Vectra 486 series of computers uses the Intel486Ô microprocessor, a custom-designed burst-mode memory controller, and the HP implementation of the Extended Industry Standard Architecture (EISA), by Larry Shintaku, pg 69-73

The HP Vectra 486 EISA SCSI Subsystem, by Mike Jerbic, pg 70

The HP Vectra 486/33T, by Mark Linsley, pg 72

The EISA Connector. Providing backward compatibility in the EISA connector hardware for ISA I/0 boards resulted in a bilevel connector design that provides pins for both bus standards in the same connector, by Douglas M. Thom, Michael B. Raynham, pg 73-77

EISA Configuration Software, by Tony Dowden, pg 75

The HP Vectra 486 Memory Controller. The memory subsystem architecture and the memory controller in the HP Vectra 486 personal computer provide a high-performance burst-mode capability, by Gary W. Lum, Marilyn J. Lang, pg 78-83

The HP Vectra 486 BASIC I/O System. An Intel486 processor, the EISA bus standard, and a new memory subsystem all required enhancements to the Basic I/0 System to ensure that the HP Vectra 486 made the best possible use of these new features, by Irvin R. Jones, Jr., Philip Garcia, Viswanathan S. Narayanan, Thomas Tom, Christophe Grosthor, pg 83-92

Performance Analysis of Personal Computer Workstations. The ability to analyze the performance of personal computers via noninvasive monitoring and simulation allows designers to make critical design trade offs before committing to hardware, by David W. Blevins, John D. Graf, Christopher A. Bartholomew, pg 92-96

December 1991 v.42 n.5

Cover: an artist’s rendition of a typical HP Sockets domain

HP Software Integration Sockets: A Tool for Linking Islands of Automation. The task of integrating diverse applications over a network of HP and non-HP machines is made easier with this software tool, by Mark Ikemoto, Mitchell J. Amino, Irene S. Smith, Alan C. Miranda, Scott A. Gulland, Cynthia Givens, Kathleen A. Fulton, pg 6-23

Configuration Files, pg 13-14

Performance in the HP Sockets Domain, pg 16

HP sockets Gateway, pg 20

Rigorous Software Engineering: A Method for Preventing Software Defects. Formal specification languages enable software engineers to apply the rigorous concepts of discrete mathematics to the software development process, by Stephen P. Bear, Tony W. Rush, pg 24-31. HP-SL.

Specifying an Electronic Mail System with HP-SL. Starting with a list of system features and capabilities, an HP-SL specification for a simple mail system is developed and the steps involved in this process are analyzed, by Patrick G. Goldsack, Tony W. Rush, pg 32-39. Specification Language.

Specification of State in HP-SL, pg 38

Specifying Real-Time Behavior in HP-SL. Using the event and history specification features of HP-SL, the software for a real-time alarm monitor is specified, by Paul D. Harry, Tony W. Rush, pg 40-45. Specification Language.

History Specifications, pg 43

Using Formal Specification for Product Development. In one product development project, the use of precise software specifications helped to uncover potential problems that might ordinarily be overlooked, and raised some interesting issues about using formal techniques, by Curtis W. Freeman, B. Robert Ladeau, pg 46-50. HP-SL, Specification Language.

Formal Specification and Structured Design in Software Development. HP-SL history specifications and techniques from structured analysis are used to create a formal specification for a critical portion of the code for a medical instrument, by J. Daren Bledsoe, Paul D. Harry, Judith L. Cyrus, pg 51-58

Telecommunications Network Monitoring System. This system supervises any telephone network using the 2-Mbit/s CEPT primary rate interface and the CCITT R2 or #7 signaling system. It automatically collects and analyzes data on CCITT-specified and other parameters related to the calls flowing through the network nodes, by Nicola De Bello, Marco Silvestri, Giuseppe Mazzucato, Antonio Posenato, pg 59-65. E3500A.

Authors December 1991: Mitchell J. Amino, Irene [Skup] S. Smith, Mark Ikemoto, Alan C. Miranda, Kathleen [Kathy] A. Fulton, Cynthia Givens, Scott A. Gulland, Tony W. Rush, Stephen P. Bear, Patrick C. Goldsack, Paul D. Harry, B. Robert Ladeau, Curtis W. Freeman, Judith L. Cyrus, J. Daren Bledsoe, Marco Silvestri, Antonio Posenato, Giuseppe [Beppo] Mazzucato, Nicola [Nick] De Bello, pg 66-68

Index: Volume 42 January 1991 through December 1991. PART 1: Chronological Index, pg 69-70. PART 2: Subject Index, pg 71-73. PART 3: Product Index, pg 74. PART 4: Author Index, pg 75.

February 1990 v.41 n.1

Cover: The seven layers of the International Organization for Standardization’s OSI Reference Model on the HP OSI Express card, and the communication path between two end systems over a network

An Overview of the HP OSI Express Card. The OSI Express card provides on an I/O card the networking services defined by the ISO OSI (Open Systems Interconnections) Reference Model, resulting in off-loading much of the network overhead from the host computer. This and other features set the OSI Express card apart from other network implementations in existence today, by William R. Johnson, pg 6-8

The HP OSI Express Card Backplane Handler. The backplane on the HP OSI Express card is handled by a pair of VLSI chips and a set of firmware routines. These components provide the interface between the HP OSI Express card driver on the host machine and the common OSI networking environment, or CONE, on the OSI Express card, by Glenn F. Talbott, pg 8-18

Custom VSLI chips for DMA, pg 15-16

CONE: A Software Environment for Network Protocols. The common OSI network environment, or CONE, provides a network-specific operating system for the HP OSI Express card and an environment for implementing OSI protocols, by H. Michael Wenzel, Steven M. Dean, David A. Kumpf, pg 18-28

The Upper Layers of the HP OSI Express Card Stack. The upper three layers of the HP OSI Express card share the same architecture and use tables to simplify their implementations of the OSI stack. The applications and presentation layers are implemented in the same module, by Michael A. Ellis, Kimball K. Banker, pg 28-36

Implementation of the OSI Class 4 Transport Protocol in the HP OSI Express Card. The HP OSI Express card’s implementation of the transport layer protocol provides flow control, congestion control, and congestion avoidance, by Rex A. Pugh, pg 36-45

Data Link Layer Design and Testing for the OSI Express Card. The modules in the data link layer occupy the bottom of the OSI Reference Model. Therefore, it was imperative that they be finished first and that their reliability be assured before use by the upper layers of the OSI stack, by Judith A. Smith, Bill Thomas, pg 45-51

The OSI Connectionless Network Protocol, pg 49

HP OSI Express Design for Performance. Network standards are sometimes associated with slow networking. This is not the case with the HP OSI Express card. Because of early analysis of critical code paths, throughput exceeds 600,000 bytes per second, by Elizabeth P. Bortolotto, pg 51-58

The HP OSI Express Card Software Diagnostic Program. The software diagnostic program is a high-level mnemonic debugger. The structure definition utility isolates the diagnostic program from compiler differences and data definition changes, by Joseph R. Longo, Jr., pg 59-67

Support Features of the HP OSI Express Card. The HP OSI Express card offers event logging and tracing to facilitate troubleshooting in multivendor networks, by Charles L. Hamer, Jayesh K. Shah, pg 67-72

Integration and Test for the OSI Express Card’s Protocol Stack. Special test tools and a multidimensional integration process enabled engineers to develop, test, and debug the firmware for the OSI Express card in two different environments. In one environment an emulation of the OSI Express card was used and in another the real hardware was used, by Neil M. Alexander, Randy J. Westra, pg 72-77

Authors February 1990: William [Bill] R. Johnson, Glenn F. Talbott, David [Dave] A. Kumpf, Steven [Steve] M. Dean, H. Michael [Mike] Wenzel, Kimball [Kim] K. Banker, Michael [Mike] A. Ellis, Rex A. Pugh, Judith [Judy] A. Smith, Bill Thomas, Elizabeth [Liz] P. Bortolotto, Joseph [Rick] R. Longo, Jr., Jayesh [Jay] K. Shah, Charles [Chuck] L. Hamer, Neil M. Alexander, Randy J. Westra, Christopher [Chris] M. Miller, Douglas [Doug] M. Baney, Wayne V. Sorin, pg 77-79

High-Speed Lightwave Signal Analysis. This analyzer measures the important characteristics of high-capacity lightwave systems and their components, including single-frequency or distributed feedback semiconductor lasers and broadband pin photodectors, by Christopher M. Miller, pg 80-91. 71400A.

A Broadband Instrumentation Photoreceiver, by Dennis Derickson, pg 84-85

Linewidth and Power Spectral Measurements of Single-Frequency Lasers. A special fiber optic interferometer preprocesses optical signals for a lightwave signal analyzer to measure laser characteristics using delayed and gated delayed self-homodyne techniques, by Douglas M. Baney, Wayne V. Sorin, pg 92-96

April 1990 v.41 n.2

Cover: Behind the front door of the HP 1050 Series liquid chromatograph quaternary pump module is the four-way proportioning valve and the dual-piston pump

A New Modular High-Performance Liquid Chromatograph. The HP 1050 Series of modules refines and extends HP’s LC technology, emphasizing a common architecture and a standard design for all modules, by Herbert Wiederoder, pg 6-10. HPLC.

An Introduction to Liquid Chromatography, by Henry J. van Nieuwkerk, pg 7-8

Industrial Design and Ergonomics, by Raoul Dinter, pg 9-10

Quality Engineering for a Liquid Chromatography System. For the HP 1050 Series LC system, customer expectations were translated into measurable quality goals, which were then verified by special test methods, by Helge Schrenker, Wolfgang Wilde, pg 11-16

Design for Manufacturing, by Heiko Breckwoldt, Manfred Seltz, pg 14-15

A Compact, Programmable Sample Injector and Autosampler for Liquid Chromatography. The HP 1050 Series autosampler is capable of manual or automatic injection from up to 119 sample vials at injection volumes up to 2000 microliters, by Wolfgang Kretz, Gerhard Ple, pg 17-23

Flexible, Precise Solvent Delivery for Liquid Chromatography. The HP 1050 Series LC pump merges reliable, known technology with powerful control capabilities that compensate for solvent properties and physical side effects. A custom IC implements the motor and pump control functions, by Klaus Witt, Fred Strohmeier, pg 24-35

Pump Control Chip, by Fred Strohmeier, Klaus Witt, pg 30-31

A New Generation of LC Absorbance Detectors. Two absorbance detectors are available for the HP 1050 Series modular LC system: a high-sensitivity programmable scanning detector and a high-speed, multiple wavelength diode array detector, by Gunter Hoschele, Volker Brombacher, Konrad Teitz, Hubert Kuderer, Axel Wiese, pg 36-43

Firmware Development for a Modular Liquid Chromatography System. More than half of the firmware for the HP 1050 Series High-Performance Liquid Chromatography System is common to all modules. It is customized for individual modules by means of module-specific tables, by Christian Buttner, Fromut Fritze, Gerhard Ple, pg 44-50

HP OpenView Network Management. HP OpenView is HP’s first set of integrated hardware and software products designed to address the needs of managing open, standards-based, multivendor networks in a consistent, user-friendly manner, by Anthony S. Ridolfo, pg 51-53

HP OpenView Network Management Architecture. This article highlights the principal objectives of the architecture and the reference models used to support the HP OpenView product development, by Mark L. Hoerth, Keith S. Klemba, Hui-lin Lim, Maureen C. Mellon, pg 54-59

HP OpenView Windows: A User Interface for Network Management Solutions. HP OpenView Windows provides a consistent graphics-based user interface for users of network management applications, and a set of utilities that enable developers to create network management applications for the HP OpenView Windows environment, by Arthur J. Kulakow, Kathleen L. Gannon, Catherine J. Smith, pg 60-65

HP OpenView Bridge Manager: Network Management for HP Lan Bridges. Since LAN bridges receive all the data packets transmitted on the LAN segments they interconnect, they are an ideal focal point for monitoring packet integrity and the number of packets forwarded and filtered, by Andrew S. Fraley, Tamra I. Perez, pg 66-70

HP OpenView Data Line Monitor. Monitoring large and complex network configurations is crucial to maintaining the integrity and performance of data communication lines. The HP OpenView Data Line Monitor is a hardware and software solution for monitoring these data communication lines, by Michael S. Hurst, pg 71-76

Network Management for the HP 3000 Datacom and Terminal Controller. The HP OpenView DTC Manager software is responsible for controlling, monitoring, and diagnosing the DTCs on a local area network. Its functions can be exercised either from a local workstation on the LAN or from an HP Response Center or other remote workstation, by Michele A. Prieur, Serge Y. Amar, pg 76-84

Developing a Distributed Network Management Application Using HP OpenView Windows. Using concepts from the HP OpenView architecture and the facilities provided by the HP Openview Windows, network management services and distributed applications were developed for user feedback and validation of the architecture, by Lisa M. Cole, Atul R. Garg, pg 85-91

Authors April 1990: Herbert Wiederoder, Helge Schrenker, Wolfgang Wilde, Gerhard Ple, Wolfgang Kretz, Klaus Witt, Fred Strohmeier, Axel Wiese, Konrad Teitz, Gunter Hoschele, Volker Brombacher, Hubert Kuderer, Christian Buttner, Fromut Fritze, Anthony [Tony] S. Ridolfo, Keith S. Klemba, Hui-Lin Lim, Maureen C. Mellon, Mark L. Hoerth, Arthur J. Kulakow, Kathleen L. Gannon, Catherine J. Smith, Tamra I. Perez, Andrew S. Fraley, Michael S. Hurst, Serge Y. Amar, Michele A. Prieur, Lisa M. Cole, Atul R. Garg, pg 92-95

June 1990 v.41 n.3

Cover: An HP SoftBench window environment, showing the OSF/Motif 3D Appearance

Making Computer Behavior Consistent: The HP OSF/Motif Graphical User Interface. Window-oriented user interfaces provide knowledge workers with powerful tools to control their computer environments and increase productivity. The OSF/Motif graphical user interface provides standards and tools to ensure consistency in the appearance and behavior of applications running in the X Window System, by Axel O. Deininger, Charles V. Fernandez, pg 6-12

OSF/Motif, pg 8

The HP OSF/Motif Window Manager. The HP OSF/Motif window manager, which is built on top of the X Window System, is a window management interface that provides a 3D enhanced Presentation Manager appearance and behavior using HP OSF/Motif widgets, by Keith M. Taylor, Brock C. Krizan, pg 12-26

Interclient Communication Conventions, pg 23-24

Programming with HP OSF/Motif Widgets. The HP OSF/Motif widget library makes it easy for a developer to create applications with a graphical user interface that has a consistent appearance and behavior, by Benjamin J. Ellsworth, Donald L. McMinds, pg 26-35

The Evolution of Widgets, pg 27-28

The HP Softbench Environment: An Architecture for a New Generation of Software Tools. The HP SoftBench product improves programmer productivity by integrating software development tools into a single unified environment, allowing the program developer to concentrate on tasks rather than tools, by Martin R. Cagan, pg 36-47

Architecture Support for Automated Testing, by Jack Walicki, pg 37-38

Broadcast Message Server Message Structure, pg 39

Distributed Execution, Data, and Display, by Gerald P. Duggan, pg 40

Schemes: Interface Consistency, by John R. Diamant, Colin Gerety, pg 41

Pervasive Editing in the HP SoftBench Environment, by William A. Kwinn, pg 42

Native Language Support, by Warren J. Greving, Kathryn Y. Kwinn, pg 43-44

Mechanisms for Efficient Delivery, by Sam Sands, pg 45

Application of a Reliability Model to the HP SoftBench Environment, by Tim Tillson, pg 46

A New Generation of Software Development Tools. The HP SoftBench environment’s development manager, program editor, program builder, static analyzer, program debugger, and mail collaborate to support task-oriented program construction, test, and maintenance, by Colin Gerety, pg 48-58

Development Manager, by Anthony P. Walker, pg 49

Program Editor, by Colin Gerety, pg 51

Program Builder, by James W. Wichelman, pg 52-53

Static Analyzer, by Gary L. Thunquest, John P. Dutton, pg 54

Program Debugger, by Robert A. Morain, Robert B. Heckendorn, pg 55-56

Integrated Help, by John R. Diamant, pg 57

HP Encapsulator: Bridging the Generation Gap. By means of the Encapsulator description language, a user can integrate tools into the HP SoftBench environment without modifying their source code, and can tailor the HP SoftBench environment to support a particular software development process, by Brian D. Fromme, pg 59-68

HP Encapsulator CASE Case Study, by Bob Desinger, pg 65

Introduction to Particle Beam LC/MS. Particle beam liquid chromatography/mass spectrometry (LC/MS) yields classical, library-searchable electron impact spectra for compounds that are too thermally labile or nonvolatile to be analyzed by gas chromatography/mass spectrometry (GC/MS), by Robert G. Nordman, James A. Apffel, Jr., pg 69-76

Advances in IC Testing: The Membrane Probe Card. Conventional integrated circuit wafer test probes have mechanical and electrical weaknesses, especially for testing high-frequency or high-speed devices and chips that have large numbers of input and outputs. Membrane probe technology overcomes most of these limitations, by Farid Matta, pg 77-85

Authors June 1990: Axel O. Deininger, Charles V. Fernandez, Keith M. Taylor, Brock C. Krizan, Benjamin J. Ellsworth, Donald [Don] L. McMinds, Martin R. Cagan, Colin Gerety, Brian D. Fromme, Robert [Bob] G. Nordman, James [Alex] A. Apffel, Jr., Farid Matta, pg 86-87

August 1990 v.41 n.4

Cover: An automated workcell with robots and controllers at the General Motors Corporation facility in Oshawa, Canada. Providing the communication links between the components in the workcell is a typical application of the Manufacturing Automation Protocol 3.0 (MAP 3.0)

HP Manufacturing Automation Protocol 3.0. The Manufacturing Automation Protocol (MAP) is an intervendor program that addresses the problems that have plagued factory automation in the past. HP’s MAP 3.0 product provides international standard network services and protocols and a multivendor MAP programmatic interface, by Bruce J. Talley, Collin Y. W. Park, pg 6-10

Overview of the OSI Reference Model, pg 8

Upper Layer Architecture for HP MAP 3.0 OSI Services. Based on the OSI standard for the application layer, the HP MAP 3.0 upper layer architecture provides a standardized structure that allows network application developers to focus on the services provided by their applications rather than the architecture necessary to interface to network protocols, by Sanjay B. Chikarmane, pg 11-15

Directory Services in the HP MAP 3.0 Environment. To provide a standardized implementation of a directory service for locating resources in the HP MAP 3.0 environment, the ISO X.500 directory standard is used, by Darrell O. Swope, Colleen S. Fettig, Beth E. Cooke, Roy M. Vandoorn, Paul B. Koski, pg 15-23

HP MAP 3.0 File Transfer, Access, and Management/800. File Transfer, Access, and Management, or FTAM, is an OSI standard that defines the framework upon which layer seven file transfer services can be built for accessing and managing files across open systems, by Steven W. Manweiler, pg 24-30

HP MAP 3.0 Manufacturing Message Specification/800. The first release of HP’s implementation of the MMS standard offers powerful communication tools for monitoring and controlling robots, PLCs and other factory-floor devices in the manufacturing environment, by Thomas G. Bartz, Peter A. Lagoni, Christopher Crall, pg 31-39

HP MMS/800 Services, pg 38

HP-UX Kernel Communications Modules for a Card-Based OSI Protocol Stack. HP MAP 3.0 products are based on the HP OSI Express card, which implements most of the OSI protocol stack on an I/O card. The kernel modules provide reliable data transfer between the host computer and the HP OSI Express card, by Kimberly K. Scott, Eric C. Scoredos, Richard H. Van Gaasbeck, pg 40-49

Interoperability Testing for HP MAP 3.0. Interoperability testing is used to ensure that HP MAP 3.0 OSI services can communicate with other vendors’ systems and to uncover errors both in HP’s and other vendors’ OSI implementations, by Jeffrey D. Meyer, pg 50-53

The HP MAP 3.0 Software Integration Lifecycle. The HP MAP 3.0 program was a large multidivisional effort with project teams spread over different geographical locations and working under different organizations. To manage the integration of the hardware and software components from these different project teams, a generic integration lifecycle was developed for the HP MAP 3.0 product, by Douglas R. Gregory, pg 54-60

The Integrated Personal Development Environment, pg 59

Authors August 1990: Bruce J. Talley, Collin Young Woon Park, Sanjay B. Chikarmane, Beth E. Cooke, Colleen S. Fettig, Darrell O. Swope, Paul B. Koski, Roy M. Vandoorn, Steven W. Manweiler, Peter A. Lagoni, Christopher Crall, Thomas G. Bartz, Kimberly K. Scott, Eric [Rio] C. Scoredos,  Richard Henry Van Gaasbeck, Jeffrey D. Meyer, Douglas R. Gregory, Gerd F. Koffmane, Werner Berkel, Frederick [Fred] L. Eatock, Heino Hopke, Patrick Schmid, Hans-Jurgen Snackers, Hans-Jurgen Wagner, Stefan G. Klein, Volker Eberle, Peter Schinzel, Gunter Steinbach, pg 60-63

500-MHz and 300-MHz Programmable Pulse Generators. These instruments are capable of testing the most advanced CMOS, ECL and GaAs devices. A custom bipolar IC generates the timing parameters, by Patrick Schmid, Gerd Koffmane, Frederick L. Eatock, Heino Hopke, Werner Berkel, Hans-Jurgen Snackers, pg 64-78. 8131A. 8130A.

Hybrid Assembly, by Hans-Jurgen Snackers, pg 76-77

A 500-MHz Pulse Generator Output Section. Surface mount, thick-film hybrid, and gallium arsenide technologies contribute to the advanced output capabilities of the HP 8131A pulse generator, by Hans-Jurgen Wagner, Stefan G. Klein, pg 79-84

A 300-MHz, Variable-Transition-Time Pulse Generator Output Section. The design includes separate fast and slow slope generators and custom GaAs and bipolar ICs, by Volker Eberle, Peter Schinzel, Gunter Steinbach, pg 85-92. 8130A.

October 1990 v.41 n.5

Cover: The flat plate is the iris plate from a magnetically tuned preselection filter used in the HP 11974 Series preselected mixers. In the middle are two tiny barium ferrite resonator spheres. Also shown are the top and bottom halves of the tuning magnet, the magnet body, and the two parts of the waveguide assembly

An Overview of the HP Interactive Visual Interface. The HP Interactive Visual Interface (HP IVI) product uses object-oriented and window technologies to provide interactive and programmatic tools for building graphical user interfaces, by Roger K. Lau, Mark E. Thompson, pg 6-10

HP IVI Project Management, by Chuck Robinson, Robin Ching, pg 7

Quality Function Deployment and HP IVI, by Mark Thompson, Kent Chao, pg 9-10

The HP IVI Object-Oriented Toolkit. Using object-oriented design techniques, a minimum set of functions is provided with the HP IVI product for manipulating widgets and graphic objects to create a graphical user interface, by David G. Wathen, Mydung Thi Tran, pg 11-20

 

HP IVI Application Program Interface Design. To provide the features available in HP IVI, the internal design and implementation of the application program interface leveraged concepts and software from graphics packages, window technology, widgets, Xt Intrinsics, and object-oriented design, by Gary D. Thomsen, Pamela W. Munsch, Warren I. Otsuka, pg 21-31

Object-Oriented Design in HP IVI, by Pam Munsch, Steven Witten, pg 29-30

HP IVIBuild: Interactive User Interface Builder for HP IVI. Using the facilities provided by HP IVI’s application program interface, HP IVIBuild allows developers to create and experiment with different types of application user interfaces, save them in files, and bind them to the functionality of the application at run time, by Steven P. Witten, Hai-Wen L. Bienz, pg 32-38

Creating an Effective User Interface for HP IVIBuild. The HP IVIBuild user interface was a collaborative effort between the software engineers developing the code for the product and a group of industrial designers who understand the requirements of an effective graphical user interface, by Steven R. Anderson, Jennifer Chaffee, pg 39-44

Authors October 1990: Roger K. Lau, Mark E. Thompson, Mydung Thi Tran, Dabid G. Wathen, Pamela [Pam] W. Munsch, Warren I. Otsuka, Gary D. Thomsen, Steven [Steve] P. Witten, Hai-Wen L. Bienz, Steven [Steve] R. Anderson, Jennifer Chaffee, Michael [Mike] J. Levernier, Robert [Bob] J. Matreci, Dean B. Nicholson, Kent L. Garliepp, Kathleen [Kathy] A. Fulton, Irene Skupniewicz, John U. Frohlich, Asad Aziz, Ravi Kaw, David [Dave] W. Quint, Frank J. Perezalonso, Chee K. Chow, Kent P. Misegades, Vivek Mansingh, pg 45-48

26.5-to-75-GHz Preselected Mixers Based on Magnetically Tunable Barium Ferrite Filters. A new resonator material – barium ferrite – and a new four-sphere design are featured in a series of magnetically tunable preselection filters for the millimeter-wave frequency range, by Michael J. Levernier, Robert J. Matreci, Dean B. Nicholson, pg 49-58 . 11974.

Hexagonal Ferrites for Millimeter-Wave Applications. Scandium-doped, M-phase barium ferrite has the necessary properties. Crystals are grown and spheres are processed and tested in-house, by Dean B. Nicholson, pg 59-61

HP DIS: A Development Tool for Factory-Floor Device Interfaces. The HP Device Interface System provides a development facility that includes a high-level Protocol Specification Language, a testing facility, and a run-time facility for device interfaces that run in an HP-UX environment on HP 9000 computers, by Kathleen A. Fulton, Kent L. Garliepp, Irene Skupniewicz, John U. Frolich, pg 62-72

Finite State Machine, pg 65

Matching Messages, pg 67

Action Routines, pg 69

Measurement of R, L, and C Parameters in VLSI Packages. Developed to verify the electrical models of a 408-lead multilayer ceramic package, this measurement technique can measure the very small inductances, capacitances, and resistances that are typical of high-performance packages. It does not require extraction of RLC parameters from time-domain reflectometer measurements, by Frank J. Perezalonzo, David W. Quint, Asad Aziz, Ravi Kaw, pg 73-77

Statistical Circuit Simulation of a Wideband Amplifier: A Case Study in Design for Manufacturability. Statistical variations of integrated circuit parameters are often correlated, not independent. Examples are side-by-side resistor values and matched transistor gains. Accounting for these correlations using principal component analysis can make statistical simulation an accurate predictor of manufacturing data, by Chee K. Chow, pg 78-81

System Level Air Flow Analysis for a Computer System Processing Unit. Numerical simulation of particle traces using finite element modeling and supercomputers gives a good qualitative picture of air flow features. Computer velocity profiles and pressure drops have reasonable good accuracy, by Vivek Mansingh, Kent P. Misegades, pg 82-87

December 1990 v.41 n.6

Cover: Magnetooptical disk cartridges are shown with various mechanical parts designed for the HP Series 6300 Model 20GB/A 20-gigabyte rewritable optical disk library system

A Rewritable Optical Disk Library System for Direct Access Secondary Storage. This autochanger system can store up to 20.8 Gbytes of data on-line. Applications include archival storage, automated backup and recovery, and document storage and retrieval, by Donald J. Stavely, Mark E. Wanger, Kraig A. Proehl, pg 6-13. Series 6300 Model 20GB/A.

Magnetooptical Recording Technology, by Ed Sponheimer, pg 8-9

Integrating the Optical Library Unit into the HP-UX Operating System, by Daryl C. Stolte, Bruce A. Thompson, David Ellis, pg 11-12

Mechanical Design of an Optical Disk Autochanger. The autochanger moves 32 disk cartridges between two magnetooptical drives and two stacks of storage positions using only two motors and three optical sensors, by Raymond C. Sherman, Daniel R. Dauner, Jennifer L. Methlie, Michael L. Christensen, Leslie G. Christie, Jr., pg 14-23. Series 6300 Model 20GB/A.

Optical Disk Autochanger Servomechanism Design. A “sense of touch” and error recovery routines contribute to reliability. Data capture, error injection, and mechanical regression testing facilities improved the productivity of the designers, by Mark J. Bianchi, Thomas C. Oliver, pg 24-34. Series 6300 Model 20GB/A.

Data Capture System, by Mark Bianchi, pg 29-30

Error Injection, by Rick Kato, pg 33

Qualification of an Optical Disk Drive for Autochanger Use. Ninety-three design changes were made to the stand-alone drive to quality it for use in an autochanger, by Colette T. Howe, Kevin S. Saldanha, pg 35-37. Series 6300 Model 20GB/A.

A CD-ROM Drive for HP 3000 and HP 9000 Computer Systems. The HP Series 6100 Model 600/A HP-IB CD-ROM drive provides facilities that allow HP 3000 and HP 9000 computer system users to access data stored on CD-ROM disks, which can store up to 553 Mbytes of audio and digital information, by Edward W. Sponheimer, John C. Santon, pg 38-41

Error Correction Implementation and Performance in a CD-ROM Drive. The HP Series 6100 Model 600/A implements the error protection algorithm defined by the CD-ROM yellow book standard. This extra level of protection means that the error rate is improved from one error in 10¹² bits to one in 10¹⁶, by John C. Meyer, pg 42-48

Error Detection and Correction Primer, pg 46-47

Providing Software Protection Capability for a CD-ROM Drive. The HP Series 6100 Model 600/A drive supports two levels of security for software protection: load-time security, which prevents loading a package without the proper authority, and scrambling data on the disk to prevent reading a protected disk with another CD-ROM , by Kenneth R. Nielsen, pg 49-53

Support for the ISO 9660/HSG CD-ROM File System Format in the HP-UX Operating System. To allow HP-UX users access to CD-ROM files, the ISO 9660/HSG file system format standard has been incorporated into the HP-UX 7.0 operating system, by William A. Gates, Bruce A. Thompson, Dale K. McCluskey, Ping-Hui Kao, pg 54-59

Authors December 1990: Donald [Don] J. Stavely, Kraig A. Proehl, Mark W. Wanger, Daniel [Dan] R. Dauner, Jennifer L. Methlie, Michael [Mike] L. Christensen, Raymond [Ray] C. Sherman, Leslie G. Christie, Jr., Mark Bianchi, Thomas C. Oliver, Kevin S. Saldanha, Colette T. Howe, Edward [Ed] W. Sponheimer, John C. Santon, John C. Meyer, Kenneth [Ken] R. Nielson, Ping-Hui Kao, William [Bill] A. Gates, Bruce A. Thompson, Dale K. McCluskey, Jean-Pierre Allegre, Marie-Therese [Marie-The] Sarrasin, Frederic Maioli, Nguyen P. Hung, Frank E. Hauser, pg 60-62

X.25 Packet Assembler/Disassembler Support in the HP 3000 Data Communications and Terminal Controller. The PAD support software implements the communications protocols specified in CCITT recommendations X.3 and X.29. For performance reasons, the software is in the datacom and terminal controller (DTC) rather than the host MPE XL System, by Jean-Pierre Allegre, Marie-Therese Sarrasin, pg 63-73. 2345A.

An Object-Oriented Message Interace for Testing the HP 3000 Data Communications and Terminal Controller. Creating a general-purpose message compiler/decompiler using symbolic expressions, expert systems concepts, object classes, and inheritance reduces software testing overhead and improves test readability and portability, by Frederic Maioli, pg 74-80. 2345A, DTC.

Index: Volume 41 January 1990 through December 1990. PART 1: Chronological Index, pg 81-82. PART 2: Subject Index, pg 83-86. PART 3: Product Index, pg 86. PART 4: Author Index, pg 87.

Effect of Fiber Texture on the Anisotropic Dimensional Change of Cu 1.8 Wt% Be. The dimensional changes in cold-drawn Cu 1.8wt% (11.4 at%) Be rods resulting from aging are investigated. The dimensional changes are nearly isotropic for as-quenched specimens but are anisotropic for cold-drawn specimens. The theoretical dimensional changes predicted based on the degree of preferred orientation, the crystallographic data of Cu-Be, and the geometry of the specimens agree with the experimental data, by Nguyen P. Hung, Frank E. Hauser, pg 88-91

February 1989 v.40 n.1

Cover: The circuit diagram of a zero-dead-time-counter, a key component of the HP 5371A Frequency and Time Interval Analyzer

Characterization of Time Varying Frequency Behavior Using Continuous Measurement Technology. The HP 5371A Frequency and Time Interval Analyzer implements the continuous measurement technique to provide advanced capabilities for measuring frequency and time interval variations, by Mark Wechsler, pg 6-12. See Also the Corrections section below.

Analyzing Microwave and Millimeter-Wave Signals, by Richard Schneider, pg 8

Firmware System Design for a Frequency and Time Interval Analyzer. Built-in control and analysis firmware tailors the continuous measurement technology of the HP 5371A to dynamic frequency and time interval applications, by Lisa B. Stambaugh, Terrance K. Nimori, pg 13-21

Table-Driven Help Screen Structure Provides On-Line Operating Manual. The structure and firmware were designed for ease of reuse, by Lisa B. Stambaugh, pg 21-24. 5371A.

Input Amplifier and Trigger Circuit for a 500-MHz Frequency and Time Interval Analyzer. Two thick-film hybrid circuits provide precise, stable high-frequency triggering in manual trigger, single autotrigger, and repetitive autotrigger modes, by Johann J. Heinzl, pg 24-27

Phase Digitizing: A New Method for Capturing and Analyzing Spread-Spectrum Signals. By continuously counting and time-tagging zero crossings, a phase or time encoded signal can be digitized and analyzed with efficiency and precision, by David C. Chu, pg 28-35

See Also: Corrections: Two corrections for the article “Phase Digitizing: A New Method for Capturing and Analyzing Spread-Spectrum Signals”; also a correction to figures on page 7 and page 9 in “Characterization of Time Varying Frequency Behavior Using Continuous Measurement Technology”, page 6 in the same issue, page 56 in the April 1989 issue

Reading a Counter on the Fly, pg 33

Frequency and Time Interval Analyzer Measurement Hardware. Examples of measurements on a frequency agile radio are used to illustrate the design and operation of the measurement hardware of the HP 5371A analyzer, by Paul S. Stephenson, pg 35-41

An Integrated Voice and Data Network Based on Virtual Circuits. Developed as an HP Laboratories research project, this network offers true integration of voice and data, a single architecture for local and wide area networks, high throughput, low host overhead, very good cost/performance ratio, and effective interfacing to existing standards, by Robert Coackley, Howard L. Steadman, pg 42-49. StarLAN 10.

Authors February 1989: Mark Weschler, Lisa B. Stambaugh, Terrance [Terry] K. Nimori, Johann J. Heinzl, David C. Chu, Paul S. Stephenson, Howard L. Steadman, Robert [Bob] Coackley, Fred H. Ives, Mark D. Talbot, Dale R. Beucler, James [Jim] O. Barnes, Craig A. Heikes, Thomas [Tom] M. Higgins, Jr., Kenneth [Ken] S. Thompson, David [Dave] J. Schwartz, Alan L. McCormick, pg 49-51

Multifunction Synthesizer for Building Complex Waveform. The HP 8904A uses digital synthesis and VLSI technology to provide a highly reliable tool for demanding applications like VOR, ILS, FM stereo, and communication signaling, by Fred H. Ives, pg 52-57. 8904A.

Mechanical Design of the HP 8904A, by Larry R. Wright, pg 55-56

Digital Waveform Synthesis IC Architecture. The digital waveform synthesis IC is the heart of the HP 8904A Multifunction Synthesizer. It provides a digital approach to the conventional analog functions of modulation and signal generation, by Mark D. Talbot, pg 57-62

Development of a Digital Waveform Synthesis Integrated Circuit. The digital waveform synthesis IC is an excellent example of using custom VLSI in an instrument to reduce cost and increase functionality, accuracy, and reliability, by Craig A. Heikes, James O. Barnes, Dale R. Beucler, pg 62-65. 8904A.

Analog Output System Design for a Multifunction Synthesizer. The analog output system for the HP 8904A takes the 12-bit data stream from the digital waveform synthesis IC and converts it to an analog signal with excellent frequency response and low distortion, by Thomas M. Higgins, Jr., pg 66-69

A Generating a Phase-Locked Binary Reference Frequency, pg 68

Firmware Design for a Multiple-Mode Instrument. The firmware architecture of the HP 8904A Multifunction Synthesizer is designed to handle the existing operating modes efficiently and to facilitate evolutionary changes, by Mark D. Talbot, pg 70-73

Multifunction Synthesizer Applications. Application areas for the HP 8904A Multifunction Synthesizer include telecommunications, navigation, mobile radio communications, consumer electronics, sonar, and electromechanical systems, by Kenneth S. Thompson, pg 73-76

Testing and Process Monitoring for a Multifunction Synthesizer. Ensuring the quality and reliability of the HP 8904A Multifunction Synthesizer required a twofold test strategy: understanding the critical characteristics of the instrument and process control, by David J. Schwartz, Alan L. McCormick, pg 77-80

Assuring Reliability, by Donald Borowski, pg 80

April 1989 v.40 n.2

Cover: A 3458A Digital Multimeter

An 8 1/2-Digit Digital Multimeter Capable of 100,000 Readings per Second and Two-Source Calibration. A highly linear and extremely flexible analog-to-digital converter and a state-of-the-art design give this DMM new performance and measurement capabilities for automated test, calibration laboratory, or R&D applications, by Scott D. Stever, pg 6-7. 3458A.

An 8 1/2-Digit Integrating Analog-to-Digital Converter with 16-Bit, 100,000-Sample-per-Second Performance. This integrating-type AC uses multislope runup, multislope rundown, and a two-input structure to achieve the required speed, resolution and linearity, by Wayne C. Goeke, pg 8-15. 3458A.

Precision AC Voltage Measurements Using Digital Sampling Techniques. Instead of traditional DMM techniques such as thermal conversion or analog computation, the HP 3458A DMM measures rms ac voltages by sampling the input signal and computing the rms value digitally in real time. Track-and-hold circuit performance is critical to the accuracy of the method, by Ronald L. Swerlein, pg 15-21

Calibration of an 8 1/2-Digit Multimeter from Only Two External Standards. Internal transfer standards and autocalibration simplify external calibration and extend the period between external calibrations to two years, by Scott D. Stever, Wayne C. Goeke, Ronald L. Swerlein, Stephen B. Venzke, pg 22-30. 3458A.

Josephson Junction Arrays, by John Giem, pg 24-25

A High-Stability Voltage Reference, by David E. Smith, pg 28

Design for High Throughput in a System Digital Multimeter. High-speed custom gate arrays, microprocessors, and supporting hardware and a substantial investment in firmware design contributed to the design of the HP 3458A DMM as a system for moving data efficiently, by Gary A. Ceely, David J. Rustici, pg 31-38

Firmware Development System, by Victoria K. Sweetser, pg 33-34

Custom UART Design, by David J. Rustici, pg 36

High-Resolution Digitizing Techniques with an Integrating Digital Multimeter. Capabilities and limitations of the HP 3458A Digital Multimeter as a high-resolution digitizer are summarized. Performance data is presented for selected applications, by David A. Czenkusch, pg 39-49

Time Interpolation, by David E. Smith, pg 42-43

Measurement of Capacitor Dissipation Factor using Digitizing, by Ronald L. Swerlein, pg 46-47

A Structural Approach to Software Defect Analysis. An effective software defect analysis requires that the relationships between program faults, human errors, and flaws in the design process be understood and characterized before corrective measures can be implemented, by Takeshi Nakajo, Katsuhiko Sasabuchi, Tadashi Akiyama, pg 50-56

Corrections: Two corrections for the article “Phase Digitizing: A New Method for Capturing and Analyzing Spread-Spectrum Signals”, page 28 in the February 1989 issue; also a correction to figures on page 7 and page 9 in “Characterization of Time Varying Frequency Behavior Using Continuous Measurement Technology”, page 6 in the same issue, pg 56

Dissecting Software Failures. Beyond collecting software defect data just to study defect frequency, this paper outlines a quality data collection process, an effective analysis process, and a method to justify changes in the software development process based on the defect analysis, by Robert B. Grady, pg 57-63

Defect Origins and Types, pg 62

Software Defect Prevention Using McCabe’s Complexity Metric. HP’s Waltham Division has started to use this methodology and its associated tools to catch defect prone software modules early and to assist in the testing process, by William T. Ward, pg 64-69. See Also: Correction: Corrected figure from page 66 in the June 1989 issue, page 78

The Cyclomatic Complexity Metric, by Thomas J. McCabe, pg 66-67

Object-Oriented Unit Testing. HP’s Waltham Division has taken a first step in applying new and traditional unit testing concepts to a software product implemented in an object-oriented language, by Steven P. Fiedler, pg 69-74

Validation and Further Application of Software Reliability Growth Models. After two years of use, a software reliability growth model has been validated with empirical data, and now it is being expanded to estimate test duration before it begins, by Gregory A. Kruger, pg 75-79. Lake Stevens Instrument Division.

See Also: Correction: Replacement for the equation on page 75 in the article “Validation and Further Application of Software Reliability Growth Models”, page 31 in the August 1989 issue

Comparing Structured and Unstructured Methodologies in Firmware Development. Structured methodologies have been promoted as a solution to software productivity and quality problems. At HP’s Logic Systems Division one project used both structured and unstructured techniques, and collected metrics and documented observations for comparing the two methodologies, by William A. Fischer, Jr., James W. Jost, pg 80-85

An Object-Oriented Methodology for Systems Analysis and Specification. A methodology is proposed that enables analysts to model and specify a system’s data, interactions, processing and external behavior before design, by Donna Ho, Teresa A. Wall, Barry D. Kurtz, pg 86-90

VXIbus: A New Interconnection Standard for Modular Instruments. This standard will allow users to mix modules from different manufactures in a system contained in a single mainframe, by Kenneth Jessen, pg 91-95

VXIbus Product Development Tools. A VXIbus mainframe, a pair of modules, software, and accessories will help manufacturers develop VXIbus modules and systems more easily, by Kenneth Jessen, pg 96-97

Authors April 1989: Scott D. Stever, Wayne C. Goeke, Stephen [Steve] B. Venzke, Ronald [Ron] L. Swerlein, Gary A. Ceely, David J. Rustici, David [Dave] A. Czenkusch, Takeshi Nakajo, Katsuhiko Sasabuchi, Tadashi Akiyama, Robert [Bob} B. Grady, William [Jack] T. Ward, Steven [Steve] P. Fiedler, Gregory [Greg] A. Kruger, William [Bill] A. Fischer, Jr., James [Jim] W. Jost, Barry D. Kurtz, Teresa A. Wall, Donna Ho, Kenneth [Ken] Jessen, pg 98-100

June 1989 v.40 n.3

Cover: A veterinary bolus assembly line at the ALZA Corporation in Palo Alto, California; ALZA Directory of Quality Assurance Carol L. Hartstein with a simulated monitor screen

A Data Base for Real-Time Applications and Environments. HP Real-Time Data Base is a set of subroutines and a query facility that enable real-time application developers to build and access a real-time, high-performance, memory-resident data management system. The software runs in an HP-UX environment on an HP 9000 Series 300 or 800 Computer, by Cynthia Givens, Michael J. Wright, Le T. Hong, Michael R. Light, Feyzi Fatehi, Ching-Chao Liu, pg 6-17

New Midrange Members of the Hewlett-Packard Precision Architecture Computer Family. Higher performance comes from faster VLSI parts, bigger cache and TLB subsystems, a new floating-point coprocessor, and other enhancements. A new 16M-byte memory board is made possible by a double-sided surface mount manufacturing process, by John Keller, Thomas O. Meyer, Floyd E. Moore, Jeffrey G. Hargis, Russell C. Brockmann, pg 18-25. HP 9000 Model 835, HP 3000 Series 935.

Double-sided Surface Mount Process, by Andy Vogen, pg 23-24

Data Compression in a Half-Inch Reel-to-Reel Tape Drive. A proprietary data compression algorithm implemented in a custom CMOS VLSI chip improves the throughput and data capacity of the HP 7980XC Tape Drive, by David J. Van Maren, Mark J. Bianchi, Jeffery J. Kato, pg 26-31

Maximizing Tape Capacity by Super-Blocking. Interrecord gaps on the tape limit the capacity improvement attainable with data compression in the HP 7980XC Tape Drive. Super-blocking eliminates most of these gaps, by Jeffery J. Kato, Mark J. Bianchi, David J. Van Maren, pg 32-34

High-Speed Lightwave Component Analysis. A new analyzer system performs stimulus-response testing of electrical-to-optical, optical-to-electrical, optical-to-optical, and electrical-to-electrical components of high-speed fiber optic communications systems, by Roger W. Wong, Paul Hernday, Michael G. Hart, Geraldine A. Conrad, pg 35-51. 8702A.

OTDR versus OFDR, pg 43

Design and Operation of High-Frequency Lightwave Sources and Receivers. These compact, rugged modules are essential components of HP 8702A Lightwave Component Analyzer Systems, by Kent W. Leyde, Kenneth W. Shaughnessy, Rollin F. Rawson, Robert D. Albin, pg 52-57

High-Speed PIN Infrared Photodetectors for HP Lightwave Receivers, by Susan Sloan, pg 56

Videoscope: A Nonintrusive Test Tool for Personal Computers. The Videoscope system uses signature analysis techniques developed for digital troubleshooting to provide a tool that allows a tester to create an automated test suite for doing performance, compatibility, and regression testing of applications running on HP Vectra Personal Computers, by Danny Low, Myron R. Tuttle, pg 58- 64

Video Signature Analyzer Operation, pg 62-63

Authors June 1989: Michael [Mike] R. Light, Michael  [Mike] J. Wright, Le T. Hong, Cynthia Givens, Feyzi Fatehi, Ching-Chao Liu, Thomas [Tom] O. Meyer, Jeffrey [Jeff] G. Hargis, John Keller, Floyd E. Moore, Russell [Russ] C. Brockmann, Jeffery [Jeff] J. Kato, Mark J. Bianchi, David [Dave] J. Van Maren, Michael [Mike] G. Hart, Paul Hernday, Geraldine [Gerry] A. Conrad, Roger W. Wong, Kenneth [Ken] W. Shaughnessy, Kent W. Leyde, Rollin [Fred] F. Rawson, Robert [Dale] D. Albin, Myron R. Tuttle, Danny Low, J. Barry Shackleford, Vladimir Naroditsky, Wulf D. Rehder, Paul J. Marcoux, Paul P. Merchant, pg 65-68

Neural Data Structures: Programming with Neurons. Networks of neurons can quickly find good solutions to many optimization problems. Looking at such problems in terms of certain neural data structures makes programming neural networks natural and intuitive, by J. Barry Shackleford, pg 69-78. John J. Hopfield.

Correction: A replacement for figure 1 on page 66 in the article “The Cyclomatic Complexity Metric”, in the April 1989 issue, pg 78

A New 2D Simulation Model of Electromigration. Electromigration in miniature IC interconnect lines is simulated in HP’s sophisticated two-dimensional model, giving new quantitative and graphical insights into one of the most important metallization failure sources for VLSI chips, by Paul P. Merchant, Vladimir Naroditsky, Wulf D. Rehder, Paul J. Marcoux, pg 79-84

August 1989 v.40 n.4

Cover: The cover shows the displays that would appear when a NewWave Office user opens a file drawer, selects a folder, and chooses a document to edit

An Overview of the HP NewWave Environment The NewWave environment allows users to concentrate on the task and not the computer system. For developers of new applications, it provides the facilities to integrate applications into the NewWave environment, by Ian J. Fuller, pg 6-8

An Object-Based User Interface for the HP NewWave Environment. The NewWave environment is designed to allow users to focus on their tasks and not the tools. To accomplish this, the NewWave environment presents users with a conceptual model based on an office metaphor that is built on an object-based architecture, by Peter S. Showman, pg 9-17

The NewWave Object Management Facility. An object-based file system is the foundation of the New Wave environment. This paper describes the concepts and features of the system, by John A. Dysart, pg 17-22

The NewWave Office. The NewWave Office is the user interface for the NewWave environment. It provides the tools and methods to perform tasks found in a regular office environment, by Beatrice Lam, Scott A. Hanson, Anthony J. Day, pg 23-31

Trademark Acknowledgments for this Issue, pg 31

Correction: Replacement for the equation on page 75 in the article “Validation and Further Application of Software Reliability Growth Models”, in the April 1989 issue, pg 31

Agents and the HP NewWave Application Program Interface. In the NewWave environment, an agent is a software robot that acts as a personal assistant for the user. The agent interacts with the applications through the application program interface, by Glenn R. Stearns, pg 32-37

AI Principles in the Design of the NewWave Agent and API, pg 35

An Extensible Agent Task Language. With this language, users of the HP NewWave environment can create scripts to direct their NewWave agent to perform tasks for them. The language is designed for both novice and knowledgeable users, by Barbara B. Packard, Charles H. Whelan, pg 38-42

A NewWave Task Language Example, pg 40

The HP NewWave Environment Help Facility. The NewWave environment provides a common, context sensitive, intuitive, unobtrusive help facility for NewWave applications, by Vicky Spilman, Eugene J. Wong, pg 43-47

NewWave Computer-Based Training Development Facility. Computer-based training in the NewWave environment allows users to learn how to use the system at their own pace, and provides facilities for users to create their own computer-based training courseware, by R. Thomas Watson, Brian B. Egan, John J. Jencek, Lawrence A. Lynch-Freshner, pg 48-56

Encapsulation of Applications in the NewWave Environment. To allow non-NewWave applications to run in the NewWave environment, the NewWave encapsulation facilities provide features for the partial or full integration of these applications into the NewWave environment, by William M. Crow, pg 57-64

[Authors:] Ian J. Fuller, Peter [Pete] S. Showman, John [Andy] A. Dysart, Scott A. Hanson, Anthony [Tony] J. Day, Beatrice [Bea] Lam, Glenn R. Stearns, Charles [Chuck] H. Whelan, Barbara B. Packard, Vicky Spilman, Eugene J. Wong, Lawrence [Larry] A. Lynch-Freshner, R. [Tom] Thomas Watson, John J. Jencek, Brian B. Egan, William [Bill] M. Crow, Andrew [Andy] D. Topham, David [Dave] Gills, Tracey A. Hains, Mark J. Simms, Paul F. Bartlett, Paul F. Robinson, Thomas [Tom] F. Kraemer, pg 64-66

Mechanical Design of a New Quarter-Inch Cartridge Tape Drive. The design of the HP9145A Tape Drive required doubling both the track density and the tape speed of the existing HP 9144A, thereby doubling the older drive’s 67-Mbyte capacity and 2-Mbyte-per-minute transfer rate, by Andrew D. Topham, pg 67-73

Reliability Assessment of a Quarter-Inch Cartridge Tape Drive. Aggressive quality standards were verified by over 97,000 test hours before manufacturing release and are audited continually in production, by David Gills, pg 74-78. 9145A.

Use of Structured Methods for Real-Time Peripheral Firmware. HP’s Computer Peripherals Bristol Division made some significant changes in their firmware development process to ensure that they met a demanding development schedule and still produced a quality product, by Tracey A. Hains, Paul F. Bartlett, Mark J. Simms, Paul F. Robinson, pg 79-86

Product Development Using Object-Oriented Software Technology. Object-oriented technology is rapidly becoming an accepted technology for designing and developing software systems. This paper provides a brief history, a tutorial, and a description of HP’s Lake Stevens Instrument Division’s experience using the technology for product development, by Thomas F. Kraemer, pg 87-100.

See Also: Correction: Replacement for the equation on page 75 in the article “Validation and Further Application of Software Reliability Growth Models”, page 31 in the October 1989 issue

Objective-C Coding Example, pg 95

Object-Oriented Life Cycles, pg 98

October 1989 v.40 n.5

Cover: The fractional-N module from HP’s Performance Signal Generator family

40 Years of Chronicling Technical Achievement. Over the last 40 years the HP Journal has created a record of HP’s technical achievements by communicating technical information to professional people in all fields served by HP. With Hewlett-Packard celebrating its 50th anniversary it seems appropriate to take a look at the HP Journal, past and present, and some of the technological history of HP it has chronicled, by Charles L. Leath, pg 6-13

A Modular Family of High-Performance Signal Generators. Three signal generators, each designed for a particular type of application and each offering several options, let the user choose and pay for exactly the capability required, by Michael D. McNamee, David L. Platt, pg 14-20. 8644A, 8645A, 8665A.

Firmware Development for Modular Instrumentation. Of three major subsystems in the Performance Signal Generator control firmware, only one contains instrument-specific code. Additional hardware and firmware for calibration and diagnostic purposes provide important customer and production benefits, by Kerwin D. Kanago, Brian D. Watkins, Mark A. Stambaugh, pg 20-26. PSG.

RF Signal Generator Single-Loop Frequency Synthesis, Phase Noise Reduction, and Frequency Modulation. This signal generator design uses only a single phase-locked loop for frequency synthesis and one or more frequency-locked loops for phase noise reduction. The frequency-locked loops are based on delay line discriminators. Frequency modulation is introduced into all loops, by Earl C. Herleikson, Brad E. Andersen, pg 27-33. PSG, 8644A, 8645A, 8665A.

Fractional-N Synthesis Module, by Barton L. McJunkin, pg 28

Delay Line Discriminators and Frequency-Locked Loops, by Earl C. Herleikson, pg 30-31

Design Considerations in a Fast Hopping Voltage-Controlled Oscillator. The fast hopping requirement affected the design of the discriminator power amplifier, phase shifter, and delay line, the wideband feedback loop, and the VCO pretune circuit by Barton L. McJunkin, David M. Hoover, pg 34-36. 8645A.

High-Spectral-Purity Frequency Synthesis in a Microwave Signal Generator. A low-noise YIG-tuned fundamental oscillator and a GaAs divider contribute to the spectral purity of the HP 8665A 4.2-GHz Synthesized Signal Generator, by Douglas R. Snook, James B. Summers, pg 37-41

Microwave Signal Generator Output System Design. Noise performance and level accuracy were major design concerns. Thick-film microcircuits, some “packageless” are used extensively, by Steve R. Fried, Keith L. Fries, John M. Sims, pg 42-50. 8665A.

“Packageless” Microcircuits, by Bennie E. Helmso, pg 44

Design of a High-Performance Pulse Modulation System. The pulse modulation option for the HP 8665A Synthesized Signal Generator adds a pulse modulator and an internal pulse generator. The pulse modulator uses gallium arsenide field-effect transistor switches on microwave monolithic integrated circuits, by Douglas R. Snook, G. Stephen Curtis, pg 51-59. 8665A.

Reducing Radiated Emissions in the Performance Signal Generator Family. Two levels of radiated emissions are offered: one standard and one optional. The optional level, – 133 dBm into a two-turn loop one inch away from any surface, is 26 dB lower than the standard specification, by Donald T. Borowski, Larry R. Wright, pg 59-65

Authors October 1989: Michael [Mike] D. McNamee, David [Dave] L. Platt, Brian D. Watkins, Kerwin D. Kanago, Mark A. Stambaugh, Earl C. Herleikson, Brad E. Andersen, Barton [Bart] L. McJunkin, David [Dave] M. Hoover, Douglas [Doug] R. Snook, James [Jim] B. Summers, Steve R. Fried, Keith L. Fries, John M. Sims, G. Stephen [Steve] Curtis, Larry R. Wright, Donald [Don] T. Borowski, Susan R. Sloan, Eve M. Tanner, Catherine [Cathy] A. Keely, Anastasia [Stacy] M. Martelli, Lucy M. Berlin, Carolyn F. Jones, pg 66-68

Processing and Passivation Techniques for Fabrication of High-Speed InP/InGaAs/InP Mesa Photodetectors. Proper surface preparation and a conformal mesa passivation covering are critical to the production of low-dark-current photodiodes. The best results have been obtained with a wet chemical etch followed by double-layer polyimide passivation, by Susan R. Sloan, pg 69-75

Providing Programmers with a Driver Debug Technique. Symbolic debugging is difficult for programmers who are developing drivers to run under the HP-UX operating system but do not have HP-UX source licenses. A technique is described to use available compiler information to provide access to certain HP-UX debug records, by Eve M. Tanner, pg 76-80

HP-UX Object Module Structure, pg 78

Identifying Useful HP-UX Debug Records, pg 79

Solder Joint Inspection Using Laser Doppler Vibrometry. Good solder joints can be distinguished from bad joints by their vibration spectra. Vibration frequencies for bad joints are consistent for a given lead type, by Catherine A. Keely, pg 81-85

Laser Doppler Vibrometry, pg 82-83

Correction: Replacement for the equation on page 75 in the article “Validation and Further Application of Software Reliability Growth Models”, in the April 1989 issue, pg 31

A Model for HP-UX Shared Libraries Using Shared Memory on HP Precision Architecture Computers. To meet the needs of the PORT/HP-UX product, a special model for shared libraries was developed and implemented on HP 9000 Series 800 Computers, by Anastasia M. Martelli, pg 86-90. PORT/RX.

User-Centered Application Definition: A Methodology and Case Study. This paper presents a practical user-centered methodology for application definition. The methodology encompasses interviewing strategies, task analysis, and storyboarding techniques. The need for systematic user analysis is demonstrated, and the methodology is illustrated by a case study, by Lucy M. Berlin, pg 90-97

Interviewing Techniques, pg 92

Storyboarding Techniques, by Cathy Fletcher, pg 95-96

Partially Reflective Light Guides for Optoelectronics Applications. The guides control the light from an array of light-emitting diodes in a high-performance, low-cost erase bar for electrophotographic copiers, by Carolyn F. Jones, pg 98-104.

See Also: Correction: Words were transposed in the equations and text on page 99 in the article “Partially Reflective Light Guides for Optoelectronics Applications”; also other corrections to the same figures, page 57 in the December 1989 issue

December 1989 v.40 n.6

Cover: The HP 9000 Series 300 display shows the results obtainable using a Starbase/X11 Merge system display mode called combined mode

System Design for Compatibility of a High-Performance Graphics Library and the X Window System. The Starbase/X11 Merge system provides an architecture that enables Starbase applications and X Window System applications to coexist in the same window environment, by Kenneth H. Bronstein, David J. Sweetser, William R. Yoder, pg 6-12

The Starbase Graphics Package, pg 7

The X Window System, pg 8

Starbase/X11 Merge Glossary, pg 11-12

Managing and Sharing Display Objects in the Starbase/X11 Merge System. To allow Starbase and X to share graphics resources, a special process called the graphics resource manager was created to manage access to the shared resources. An object-oriented approach was taken to encapsulate these shared graphics resources, by Courtney Loomis, Robert C. Cline, James R. Andreas, pg 12-19

Sharing Access to Display Resources in the Starbase/X11 Merge System. The Starbase/X11 Merge system provides features to allow Starbase applications direct access to the display hardware at the same time X server clients are running. There are also capabilities to allow sharing of cursors and the hardware color map, by Jens R. Owen, Steven P. Hiebert, Jeff R. Boyton, Sankar L. Chakrabarti, Keith A. Marchington, John A. Waitz, Peter R. Robinson, John J. Lang, Michael H. Stroyan, pg 20-32

Sharing Overlay and Image Planes in the Starbase/X11 Merge System. Developing a method to take full advantage of the capabilities of display memory was one of the challenges of the Starbase/X11 Merge products, by John J. Lang, Keith A. Marchington, Steven P. Hiebert, pg 33-38

Sharing Input Devices in the Starbase/X11 Merge System. To provide support for the full set of HP input devices and to provide access to these devices for Starbase applications running in the X environment, extensions were added to the X core input devices: the keyboard and the pointer, by Ian A. Elliot, George M. Sachs, pg 38-41

X Input Protocol and X Input Extensions, pg 39

Sharing Testing Responsibilities in the Starbase/X11 Merge System. The testing process for the Starbase/X11 Merge software involved setting realizable quality goals, and using extensive test suites and test tools to measure and automate the process, by John M. Brown, Thomas J. Gilg, pg 42-46

Authors December 1989: David J. Sweetser, Kenneth [Ken] H. Bronstein, William [Bill] R. Yoder, Robert [Bob] C. Cline, James [Jim] R. Andreas, Courtney Loomis, Michale [Mike] H. Stroyan, John J. Lang, Jeff R. Boyton, Sankar L. Chakrabarti, Jens R. Owen, John A. Waitz, Peter R. Robinson, Keith A. Marchington, Steven [Steve] P. Hiebert, George M. Sachs, Ian A. Elliott, John M. Brown, Thomas J. Gilg, B. David Cathell, Michael [Mike] B. Kaistein, Stephen [Steve] J. Pearce, Rainer Plitschka, Larry J. Thayer, David [Dave] A. Burgoon,  pg 47-49

A Compiled Source Access System Using CD-ROM and Personal Computers. HP Source Reader is in use in virtually every HP support facility around the world, giving local support engineers fast access to complete source code listings for MPE, the HP 3000 Computer operating system, by Stephen J. Pearce, Michael B. Kalstein, B. David Cathell, pg 50-57

Correction: Words were transposed in the equations and text on page 99 in the article “Partially Reflective Light Guides for Optoelectronics Applications”, in the October 1989 issue; also other corrections to the same figures, pg 57

Transmission Line Effects in Testing High-Speed Devices with a High-Performance Test System. The testing of high-speed, high-pin-count ICs that are not designed to drive transmission lines can be a problem, since the tester-to-device interconnection almost always acts like a transmission line. The HP 82000 IC Evaluation System uses a resistive divider technique to test CMOS and other high-speed devices accurately, by Rainer Plitschka, pg 58-67

CMOS Device Measurement Results, pg 65

Index: Volume 40 January 1989 through December 1989. PART 1: Chronological Index, pg 67-68. PART 2: Subject Index, pg 69-72. PART 3: Product Index, pg 72. PART 4: Author Index, pg 72-73.

Custom VLSI in the 3D Graphics Pipeline. VLSI transform engine, z-cache, and pixel processor chips widen bottlenecks in the pipeline to allow the HP9000 Series 300 and 800 TurboSRX graphics subsystem to deliver enhanced performance compared to the earlier SRX design, by Larry J. Thayer, pg 74-77

Global Illumination Modeling Using Radiosity. Radiosity is a complementary method to ray tracing for global illumination modeling. HP 9000 TurboSRX graphics workstations now offer three illumination models: radiosity, ray tracing and a local illumination model, by David A. Burgoon, pg 78-88

February 1988 v.39 n.1

Cover: The ADC hybrid microcircuit of the HP 5185A Waveform Recorder in front of a display from a thermal modeling program

Precision Digital Oscilloscopes and Waveform Recorders. This precision instrument family consists of five digitizing oscilloscopes based on three waveform recorders and an analysis, display and I/O section, by James L. Sorden, pg 6-14. 5180T/U, 5183T/U, 5185T.

Waveform Recorder Software Design, by John Ketchum, pg 12-13.

See Also: Correction: The authors for the article “Waveform Recorder Software Design”, on pages 12-13 were listed incorrectly, page 47 in the April 1988 issue

Signal Conditioning and Analog-to-Digital Conversion for a 4-MHz, 12-bit Waveform Recorder, by Albert Gee, Ronald W. Young, pg 15-22. 5183A.

Adaptive Sample Rate: A First-Generation Automatic Time Base, by Nancy W. Nelson, Richard W. Page, pg 23-25. 5183A, 5183T.

Waveform Reconstruction Techniques for Precision Digitizing Oscilloscopes, by Allen S. Foster, Richard W. Page, pg 26-31

Digital Design of a High-Speed Waveform Recorder. Operation from dc to 250 MHz, where a clock cycle is only four nanoseconds long, makes timing a major concern in the design of the HP 5185A Waveform Recorder, by Steven C. Bird, Rayman W. Pon, Patrick D. Deane, pg 32-38

Printed Circuit Board Transmission Lines, pg 35

Waveform Recorder Design for Dynamic Performance. Quantizer on-chip delays and delay mismatches, low-order distortion in the input amplifier, and low levels of phase noise in the sampling clock can have significant effects on performance, by Bruce E. Peetz, Mark A. Unkrich, Steven C. Bird, Brian J. Frohring, pg 39-47. 5185A.

Fixed-Frequency Sine Wave Curve Fit, pg 48

Packaging a High-Performance 250-Megasample-per-Second Analog-to-Digital Converter, by Patrick D. Deane, Simcoe Walmsley, Jr., Farid Dibachi, pg 49-52. 5185A.

Precision Digitizing Oscilloscope Waveform Analysis, Display, and Input/Output, by Douglas C. Nichols, pg 53-64. 5180T/U, 5183T/U, 5185T, 5180A, 5183A, 5185A, 51089A.

Handling of  Significant Digits, pg 63

Developing a Printed Circuit Board Design System. HP’s Printed Circuit Board Design System (HP PCDS) was developed to meet the needs of electronic designers dealing with ever-increasing complexity and density, by Elaine C. Regelson, pg 65-67

Automating the Printed Circuit Board Design Process. Using a computer to place components on a printed circuit board and route most connections greatly simplifies the design process. To accomplish this, careful selection of the algorithms is essential, by Gary Jackoway, pg 68-71. PCDS.

Finding Paths in a Gridded Data Structure, pg 70

Managing HP PCDS with the Design System Manager. Engineering and design organizations must effectively manage design information to reap the productivity benefits of CAE/CAD systems. The Design System Manager addresses the information management needs in the HP PCDS design environment, by Paul S. Reese, Mark E. Mayotte, pg 71-76. Printed Circuit Design System.

Use of Filesets in HP PCDS, pg 73

Version Strings, pg 75

A Multidevice Spooler for Technical Applications. The variety and complexity of shared devices for CAD systems such as one used for printed circuit design require a flexible spooler with a common access method for all applications, by Deborah A. Lienhart, pg 77-80. PCDS.

Integrating Applications in a Design Management System. The many data files and applications involved in a CAD system required a sophisticated management system to preserve data integrity, prevent conflicts, and maintain design documentation, by Mark E. Mayotte, pg 80-83. DSM.

HP PCDS Library Module, by John M. Agosta, pg 82-83

Software Quality Assurance on the HP Printed Circuit Design System Project, by David E. Martin, pg 84-86. PCDS.

See Also: Reader Forum: Letter from Kevin Preston, Steve Robinson, Tony Peters, Kelly Ford regarding “Software Quality Assurance on the HP Printed Circuit Design System Project”; letter from author David Martin in response, page 82-83 in the August 1988 issue

Silicon-on-Insulator MOS Devices for Integrated Circuit Applications. Several techniques for fabricating regions of crystalline silicone on insulating substrates are available. These methods are described briefly and device design considerations introduced by the use of SOI are discussed, by Jean-Pierre Colinge, pg 87-93. Silicon-on-insulator.

Authors February 1988: James [Jim] L. Sorden, Albert [Al] Gee, Ronald [Ron] W. Young, Richard W. Page, Nancy W. Nelson, Allen S. Foster, Patrick [Pat] D. Deane, Rayman [Ray] W. Pon, Steven [Steve] C. Bird, Bruce E. Peetz, Mark A. Unkrich, Brian J. Frohring, Farid Dibachi, Simcoe Walmsley, Jr., Douglas [Doug] C. Nichols, Elaine C. Regelson, Gary Jackoway, Paul S. Reese, Deborah [Debbie] A. Lienhart, Mark E. Mayotte, David [Dave] E. Martin, Jean-Pierre Colinge, pg 94-96

April 1988 v.39 n.2

Cover: An Intricate and precise structure called a finline created by millimeter-waves technologies

Millimeter-Wave Sources and Instrumentation. The recent growth in developing and applying millimeter-wave systems has created a corresponding demand for millimeter-wave test instrumentation, by John R. Regazzi, Mohamed M. Sayed, pg 6-11. 83556A, 83554A, 83555A.

A New Generation of Millimeter-Wave Calibration and Verification Standards, by Julius K. Botka, Paul B. Watson, Doug Halbert, pg 8-9

Millimeter-Wave Vector Network Analysis, by Robert G. Dildine, James D. Grace, pg 12-18

Millimeter-Wave Source Modules. Driven by a microwave source, these modules double or triple the input frequency to generate output frequencies in the millimeter-wave range, by Robert D. Albin, pg 18-25.

Millimeter-Wave Source Module Interface, by John R. Regazzi, pg 20-21

2-GHz-to-20-GHz Amplifier, by Jeffrey W. Meyer, Mary K. Koenig, pg 22-23

High-Power Microwave Source for Millimeter-Wave Generation. This plug-in can serve directly as a high-power 8-to-20-GHz source or as a driver for a family of millimeter-wave sources, by Alan R. Bloom, Kenneth A. Richter, Andrew N. Smith, Roger R. Graeber, Ronald T. Yamada, pg 26-30. 83550A, 8355x.

Millimeter-Wave Detectors Extend Range of Scalar Network Analyzer, by Herbert L. Upham, pg 31-34. 8757A.

Waveguide Reflectometer Calibration, pg 33

Design and Performance of Millimeter-Wave Thermocouple Sensors, by Lee H. Colby, pg 35-38. Q8486A, R8486A.

Adapting UNIX Logon Mechanisms to Automation Applications. Although originally intended for software development and document preparation, the utilities provided by the UNIX operating system can be adapted in various ways for use by novice operators in an automated environment, by Marvin L. Watkins, pg 39-47

Correction: The authors for the article “Waveform Recorder Software Design”, on pages 12-13 in the February 1988 issue were listed incorrectly, pg 47

A Virtual User Simulation Utility. The vuser utility makes it possible to simulate one or several users on a system. It is a useful tool for all types of testing, particularly interactive testing. vuser runs under the HP-UX operating system on HP 9000 Series 800 and 300 Computers, by Kjell A. Olsson, Mark Bergman, pg 48-53

Vuser Run String Options, pg 51

An HP-UX Kernel Load and Measurement System. This system runs on HP Precision Architecture computers under the HP-UX operating system. It can be used to generate and measure different types of HP-UX kernel activities, by Kjell A. Olsson, Grace T. Yee, pg 54-60

Process Measures to Improve R&D Scheduling Accuracy. Improvement is possible if scheduling is regarded as a process subject to continuous measurement, by Richard M. Levitt, pg 61-65

Authors April 1988: John R. Regazzi, Mohamed M. Sayed, Robert [Bob] G. Dildine, James [Jim] D. Grace, Robert [Dale] D. Albin, Alan [Al] R. Bloom, Ronald [Ron] T. Yamada, Kenneth [Ken] A. Richter, Roger R. Graeber, Andrew [Andy] N. Smith, Herbert [Herb] L. Upham, Lee H. Colby, Marvin [Marv] L. Watkins, Mark Bergman, Kjell A. Olsson, Grace T. Yee, Richard [Dick] M. LeVitt, Wilfredo [Willy] T. Sagun, Thomas [Tom] Hornak, Gary L. Bladwin, Fred H. Ives, Albert [Al] W. Kovalick, Roland [Rolly] Hassun, Rafael F. Miranda, Peter [Pete] T. Thysell, Derrick T. Kikuchi, pg 66-68

An Arbitrary Waveform Synthesizer for DC to 50 MHz. Precision, flexibility, and repeatability of signals are ensured by a digital architecture. Two or more synthesizers can be synchronized to provide several sources of complex signals with an identical time reference, by Roland Hassun, Albert W. Kovalick, pg 69-77. 8770A.

Address Sequencer, by Matt Klein, pg 72-73

Glossary of Address Sequencer Terms, pg 73

Sampling Clock Requirements, by Douglas A. Larson, pg 76

A 125-MHz 12-Bit Digital-to-Analog Converter System. Advanced IC DAC technology and a system design approach were needed to achieve the performance of the HP 8770A Arbitrary Waveform Synthesizer, by Fred H. Ives, Thomas Hornak, Wilfredo T. Sagun, Gary L. Baldwin, pg 78-85. 8770A.

Arbitrary Waveform Synthesizer Applications in Magnetic Recording and Radar, by Roland Hassun, Albert W. Kovalick, pg 86-93. 8770A.

A Waveform Generation Language for Arbitrary Waveform Synthesis. Easier to use than conventional programming languages, WGL is the primary front-panel interface for the HP 8770A, by Rafael F. Miranda, Peter A. Thysell, Derrick T. Kikuchi, pg 94-96

June 1988 v.39 n.3

Cover: The advanced one-gigasample-per-second analog to digital converter which is the key element in the HP 54111D Oscilloscope

Statistical Issues in Setting Product Specifications. A primer on the use of statistics in specification setting, by Sherry L. Read, Timothy R. C. Read, pg 6-11

Robust Estimators, pg 7

Propagation of Error with Multiple Sources of Variability, pg 9

Boxplots, pg 11

Circuit Design Using Statistical Data Analysis. A methodology for setting limits of uncertainty on amplifier output power based on measured prototype data facilities the design of amplifiers that minimize output power variations. The result is a printed circuit board requiring no adjustments, by Karen Kafadar, Lynn M. Plouse, pg 12-17

Statistical Calibration of a Vector Demodulator. Circuit performance characteristics must be determined and accounted for in instrument calibration. This paper describes an algorithm for statistical demodulator calibration to guarantee high precision in the demodulated signal, by Karen Kafadar, pg 18-25

Appendix: Solving Nonlinear Least Squares Problems, pg 24

An Availability and Reliability Calculation Tool for Computer Systems. This software program helps R&D engineers make trade-offs in designing for reliability. It also provides marketing representatives with a tool to evaluate the reliability and availability of customer-defined systems, by Wulf D. Rehder, pg 26-29. Reliability, availability, and serviceability/supportability, RAS.

The Language of Dependability, pg 28

Project Management using Software Reliability Growth Models. At HP’s Lake Stevens Instrument Division, the Goel-Okumoto software reliability growth model has provided a means for more accurately predicting the duration of system testing and determining when to release a new product, by Gregory A. Kruger, pg 31-35

A Reliable, Autoloading, Streaming Half-Inch Tape Drive. Designed for rack mounting, this compact tape drive cleverly channels air flow to load different-sized half-inch tape reels automatically. It also features higher performance and reliability than its predecessor, by Ronald L. Abramson, Leslie G. Christie, Jr., Douglas R. Domel, Kraig A. Proehl, John W. Dong, pg 36-42. 7980A.

Streaming Tape Drive Control Electronics, by Bradfred W. Culp, Kraig A. Proehl, Jeffery J. Kato, Douglas R. Domel, David W. Ruska, Virgil K. Russon, Gerod C. Melton, Peter Way, Wayne T. Gregory, pg 43-54. 7080A.

Authors June 1988:Sherry L. Read, Timothy [Tim] R. C. Read, Karen Kafadar, Lynn M. Plouse, Wulf D. Rehder, Gregory [Greg] A. Kruger, Douglas [Doug] R. Domel, Kraig A. Proehl, Ronald [Ron] L. Abramson, John W. Dong, Leslie G. Christie, Jr., Bradfred [Brad] W. Culp, Wayne Thomas [Tom] Gregory, Gerod C. Melton, Peter Way, Jeffery [Jeff] J. Kato, Virgil K. Russon, David W. Ruska, John J. Corcoran, Ken Poulton, Knud L. Knudsen, Lewis R. Dove, Mark E. Mathews, Thomas K. Bohley, Joe K. Millard, David W. Bigelow, Donald [Don] D. Skarke, B. Allen Montijo, pg 55-57

A One-Gigasample-per-Second Digitizing Oscilloscope. This instrument’s high sampling rate makes it particularly useful for analyzing high-speed, one-shot occurrences. A blend of state-of-the-art designs was required to achieve this performance, by Joe K. Millard, pg 58-59. 54111D.

A One-Gigasample-per-Second Analog-to-Digital Converter, by Ken Poulton, John J. Corcoran, Knud L. Knudsen, pg 59-66. 54111D.

Repetitive versus Single-Shot Bandwidth, by John J. Corcoran, pg 60

Digitizer Hybrid, by Lewis R. Dove, Mark E. Mathews, pg 64-65

Front-end Signal Conditioning for a High-Speed Digitizing Oscilloscope, by Lewis R. Dove, Joe K. Millard, Thomas K. Bohley, David W. Bigelow, Mark E. Mathews, Donald D. Skarke, pg 67-69. 54111D.

Digital Filtering in a High-Speed Digitizing Oscilloscope, by B. Allen Montijo, pg 70-76

Dithering in the HP 54111D, pg 72

Digital Filters, pg 75

August 1988 v.39 n.4

Cover: Print cartridges for the HP PaintJet Color Graphics Printer and a photograph reproduced by the PaintJet printer

Design and Development of a Color Thermal Inkjet Print Cartridge. The printhead has to tolerate bubbles, nucleation defects, and localized ink property changes. It must also have long print quality life and be manufacturable in high volume. Testing to verify reliability and manufacturability covered thousands of pens, by Stephen J. Nigro, David A. Johnson, Jeffrey P. Baker, Vyomesh Joshi, pg 6-15. PaintJet.

Capillary Forces in a Foam Matrix, pg 12

Print Quality and Pen Development, by Dan Beamer, Mike Borer, May Fong Ho, Don Bergstedt, pg 14

Development of a Color Graphics Printer. Full-color graphics, reliability, and software support received high priorities in the development of the HP PaintJet Color Graphics Printer, by Hatem E. Mostafa, James C. Smith, Emil Maghakian, David C. Tribolet, pg 16-20

Color Communication Standard, by Don Palmer, Emil Maghakian, Ricardo Motta, pg 18

Manufacturability of the PaintJet Printer, by Eric Clarke, pg 19

Mechanical Design of a Color Graphics Printer. Among the issues were ensuring proper insertion of the print cartridge, making reliable electrical connections to it, moving the paper or film accurately, and designing a primer, by Lawrence W. Chan, P. Jeffrey Wield, Ruben Nevarez, Chuong Cam Ta, pg 21-27. PaintJet.

The Second-Generation Thermal Inkjet Structure. Changes in materials and processes increase resolution from 96 to 180 dots per inch and extend printhead life from 2 million drops to 7 million drops, by Ronald A. Askeland, Winthrop D. Childers, William R. Sperry, pg 28-31. PaintJet.

High-Volume Microassembly of Color Thermal Inkjet Printheads and Cartridges. Miniature parts and micrometer mechanical tolerances make high-volume assembly challenging. Adhesive selection was the first step. Special fixtures, tools, automatic machines with vision, instrumentation, and systems had to be developed, by Steven W. Steinfield, Peter M. Roessler, Timothy J. Carlin, Cheryl A. Boeller, pg 32-40

Automatic Alignment Machines, by Jeff Beemer, Mitch Levinson, Glen Oldenburg, Mick Trejo, Ed Wiesmeier, pg 34-35

JULIO, by Don Bergstedt, pg 37

Factory Systems, by Stan Evans, Carol Beamer, Mary Ann Beyster, Diane Fisher, Diane Armstrong, pg 39

Ink Retention in a Color Thermal Inkjet Pen. Keeping the ink in the pen and off the user is a nontrival engineering problem, by Mary E. Haviland, Brian D. Gragg, W. Wistar Rhoads, Jim L. Ruder, Joseph E. Scheffelin, Erol Erturk, pg 41-45. PaintJet.

Activating the Pen, by Erol Erturk, pg 43

Ink and Media Development for the HP PaintJet Printer. The ink, paper, overhead transparency film and printhead for the HP PaintJet Color Graphics Printer had to be designed as a system because of the complex interactions between these elements, by Donald J. Palmer, Mark S. Hickman, Peter C. Morris, Ronald J. Selensky, John Stoffel, M. Beth Heffernan, pg 45-50

Color Thermal Inkjet Printer Electronics. The design objectives were to minimize part count while maximizing cost/performance, by Philip C. Schultz, William J. Walsh, Jennie L. Hollis, pg 51-56. PaintJet.

Low-Cost Servo Design, by Mark Majette, David Ellement, pg 54-55

HP-RL: An Expert Systems Language. HP-RL is an integrated set of artificial intelligence programming tools that has been used at HP for many types of expert systems experiments, by Steven T. Rosenberg, pg 57-65. Representation Language.

About HP-RL, pg 59

Authors August 1988: Vyomesh Joshi, Stephen [Steve] J. Nigro, Jeffrey P. Baker, David A. Johnson, James [Jim] C. Smith, Emil Maghakian, David [Dave] C. Tribolet, Hatem E. Mostafa, P. Jeffrey [Jeff] Wield, Lawrence W. Chan, Ruben Nevarez, Chuong Cam Ta, Winthrop [Win] D. Childers, Ronald [Ron] A. Askeland, William [Bill] R. Sperry, Timothy [Tim] J. Carlin, Steven [Steve] W. Steinfield, Cheryl A. Boeller, Peter [Pete] M. Roessler, Brian D. Gragg, Jim L. Ruder, Erol Erturk, Mary E. Haviland, Joseph [Joe] E. Scheffelin, W. Wistar Rhoads, Ronald [Ron] J. Selensky, Peter C. Morris, Donald [Don] J. Palmer, John Stoffel, M. Beth Heffernan, Mark S. Hickman, Jennie L. Hollis, Philip [Phil] C. Schultz, William [Bill] J. Walsh, Steven T. Rosenberg, Alan L. Foster, James [Jim] P. Ambras, Randolph [Randy] N. Splitter, Mark L. Chiarelli, Lucy M. Berlin, Vicki O’Day, Serge L. Rudaz, Chin-Wang [Ching-Wang] Tu, Michael [Mike] D. Camras, Dennis C. DeFevere, Wayne L. Snyder, Louis W. Cook, David K. McElfresh, Frank M. Steranka, pg 65-70

MicroScope: An Integrated Program Analysis Toolset. MicroScope supports evolutionary software development by helping programmers understand complex programs written in Common Lisp, by James P. Ambras, Randolph N. Splitter, Alan L. Foster, Mark L. Chiarelli, Lucy M. Berlin, Vicki O’Day, pg 71-82

The Browser Construction Toolkit, pg 76

Using Templates in Cross-Reference Analysis, pg 77

Rule-Based Execution Monitoring, pg 79-80

Reader Forum: Letter from Kevin Preston, Steve Robinson, Tony Peters, Kelly Ford regarding “Software Quality Assurance on the HP Printed Circuit Design System Project”, pg 84 in the February 1988 issue; letter from author David Martin in response, pg 82-83

Red AlGaAs Light-Emitting Diodes. HP has recently released indicator and display products containing a new type of red light-emitting diode (LED) based on the aluminum gallium arsenide (AlGaAs) materials system. These LED’s offer a significant improvement in efficiency over the red LED’s that have previously been available but cost only slightly more., by Serge L. Rudaz, Chin-Wang Tu, Dennis C. DeFevere, Louis W. Cook, David K. McElfresh, Frank M. Steranka, Michael D. Camras, Wayne L. Snyder, pg 84-88

October 1988 v.39 n.5

Cover: The HP-UX 6.0 discless operating system

Discless HP-UX Workstations. HP-UX 6.0 provides low-cost discless workstation operation over a local area network. It also provides a single file system view, intervendor file sharing, and conformance to UNIXÒ System V Interface Definition (SVID) semantics, by Scott W. Wang, pg 6-9

Program Management, by Scott W. Wang, pg 8

A Discless HP-UX File System, by Joel D. Tesler, Debra S. Bartlett, pg 10-14

Discless Program Execution and Virtual Memory Management, by William T. McMahon, Ching-Fa Hwang, pg 15-20. HP-UX 6.0.

The Design of Network Functions for Discless Clusters, by Chyuan-Shiun Lin, David O. Gutierrez, pg 20-26. HP-UX.

Crash Detection and Recovery in a Discless HP-UX System, by Annette Randel, pg 27-32. HP-UX.

Boot Mechanism for Discless HP-UX, by Perry E. Scott, John S. Marvin, Robert D. Quist, pg 33-36

Discless System Configuration Tasks, by Kimberly S. Wagner, pg 37-39. Reconfig.

Small Computer System Interface. The SCSI standard is the newest interface for the HP 9000 Series 300 family of HP-UX workstations. It offers improved performance, simplicity in design, a wide choice of controller chips, and wide acceptance in the UNIX community, by Paul Q. Perlmutter, pg 39-45

SCSI and HP-IB, pg 44

X: A Window System Standard for Distributed Computing Environments. The X Window System allows applications running in different environments and on different machines to communicate high quality, graphical user interfaces over a network, by James B. Byers, Frank E. Hall, pg 46-50. X Window System.

Managing the Development of the HP DeskJet Printer. Forays into unexplored regions of technology are inevitable in the development of breakthrough products, but they must be limited and carefully managed, by John D. Rhodes, pg 51-54

Market Research as a Design Tool, by Alan Grube, pg 53

Human Factors and Industrial Design of the HP DeskJet Printer, by Don McClelland, pg 54

Development of a High-Resolution Thermal Inkjet Printhead. The HP DeskJet printer’s 300-dot-per-inch resolution is fundamental to its ability to produce laser-quality output, by William A. Buskirk, Robert N. Low, Richard R. Van De Poll, David E. Hackleman, Stanley T. Hall, Kenneth E. Trueba, Paula H. Kanarek, pg 55-61

Integrating the Printhead into the HP DeskJet Printer. The printhead support systems provide signals to energize the ink-firing resistors, electrical connections to the pen, a carriage to hold and move the pen, and elements to protect and maintain the pen, by J. Paul Harmon, John A. Widder, pg 62-66

DeskJet Printer Chassis and Mechanism Design. One mechanism moves the carriage while another uses a single motor to pick, feed, and eject paper and prime the pen. The polycarbonate chassis supports everything, by Kieran B. Kelly, David W. Pinkernell, Steve O. Rasmussen, Larry A. Jackson, John A. Widder, pg 67-75

Data to Dots in the HP DeskJet Printer. A microprocessor-controlled custom IC manipulates dot data to provide double-width, half-width, compressed, half-height, draft-quality, bold, underlined, and tall characters, and graphics too, by Claude W. Nichols, Mark D. Lund, Donna J. May, Thomas B. Pritchard, pg 76-80

The DeskJet Printer Custom Integrated Circuit, by Tom Pritchard, pg 77

DeskJet Printer Font Design, by Bruce Yano, pg 79

Firmware for a Laser-Quality Thermal Inkjet Printer. The firmware resident in the HP DeskJet printer is divided into generic printer code and printer specific code. An optional cartridge provides Epson FX-80 emulation, by Kevin R. Hudson, Claude W. Nichols, David J. Neff, Mark J. DiVittorio, Brian Cripe, Michael S. Ard, pg 81-86

Slow-Down Mode, by Claude Nichols, pg 82

Robotic Assembly of HP DeskJet Printed Circuit Boards in a Just-in-Time Environment. A high-speed machine places most of the surface mount components while a vision-guided robot places small components and plastic leaded chip carriers, by P. David Gast, pg 87-90

DeskJet Printer Design for Manufacturability, by Don Harring, pg 88

Fabricated Parts Tooling Plan, by Jeff Ward, pg 90

CIM and Machine Vision in the Production of Thermal Inkjet Printheads. Machine vision systems for DeskJet printhead production range from open-loop go/no-go systems to process verification systems to completely integrated process control systems, by Brian L. Helterline, Mark C. Huth, Robert F. Aman, Timothy S. Hubley, Gregg P. Ferry, Robert A. Conder, pg 91-98.

Whole Wafer Assembly of Thermal Inkjet Printheads, by Bob Aman, pg 92-93

Production Print Quality Evaluation of the DeskJet Printhead, by Timothy S. Hubley, pg 96-97

Economical, High-Performance Optical Encoders. These high-resolution optical encoders are inexpensive and easy to install, making closed-loop motion control feasible in high-volume, extremely cost-sensitive applications, by Robert Nicol, Mark G. Leonard, Howard C. Epstein, pg 99-106. DeskJet, HEDS-9000.

Basics of Optical Incremental Encoders, pg 100-101

A Complete Encoder Based on the HEDS-9000 Encoder Module, by Chris Togami, pg 105

Authors October 1988: Scott W. Wang, Debra [Debbie] S. Bartlett, Joel D. Tesler, Ching-Fa [Ching] Hwang, William [Bill] McMahon, David O. Gutierrez, Chyuan-Shiun Lin, Annette [Anny] Randel, John S. Marvin, Perry E. Scott, Robert D. Quist, Kimberly [Kim] S. Wagner, Paul Q. Perlmutter, Frank E. Hall, James [Jim] B. Byers, John D. Rhodes, Kenneth [Ken] E. Trueba, Richard [Rich] R. Van de Poll, Paula H. Hanarek, Robert [Bob] N. Low, William [Bill] A. Buskirk, Stanley [Stan] T. Hall, David E. Hackleman, J. Paul Harmon, David [Dave] W. Pinkernell, John A. Widder, Kieran B. Kelly, Steve O. Rasmussen, Larry A. Jackson, Donna J. May, Claude W. Nichols, Mark D. Lund, Thomas [Tom] B. Pritchard, Mark J. DiVittorio, Michael [Mike] S. Ard, Kevin [Hud] R. Hudson, Brian Cripe, David J. Neff, P. David [Dave] Gast, Robert [Bob] F. Aman, Brian L. Helterline, Gregg P. Ferry, Timothy [Tim] S. Hubley, Mark C. Huth, Robert [Bob] A. Conder, Robert [Rob] Nicol, Mark G. Leonard, Howard C. Epstein, pg 107-112

December 1988 v.39 n.6

Cover: The autocorrelation functions of two complementary Golay codes merge into their sidelobe-free sum in this representation of the signal processing technique implemented in the HP 8145A Optical Time-Domain Reflectometer

A High-Speed Optical Time-Domain Reflectometer with Improved Dynamic Range. This article presents basic information on optical time-domain reflectometry and introduces the HP 8145A, which uses a data correlation technique to increase measurement speed and dynamic range, by Franz Sischka, Michael Fleischer-Reumann, pg 6-13. OTDR.

Technical Risk Reduced by Joint Development Effort, by Michael Fleischer-Reumann, Steve Newton, pg 8

Complementary Correlation Optical Time-Domain Reflectometry. The autocorrelation function of a complementary Golay code pair has zero sidelobes, making these codes ideal for spread-spectrum optical time-domain reflectometry, by Mosche Nazarathy, Franz Sischka, Steven A. Newton, pg 14-21. OTDR.

Optical Component Design for a Correlation-Based Optical Time-Domain Reflectometer. The major requirements for the laser driver, optical system, and receiver were single-mode, two-wavelength operation, high linearity, low noise, and low insertion loss, by Jurgen Beck, Siegfried Gross, Robin Giffard, pg 22-28. 8145A.

Signal-to-Noise Ratio for Detection Using a PIN Diode, pg 27

Data Processing in the Correlating Optical Time-Domain Reflectometer. A powerful special-purpose digital signal processor, a general-purpose main processor, and pipelined measurement firmware work with the optical components to make measurements, by Jochen Rivoir, Wilfried Pless, pg 29-34. 8145A.

Optical Time-Domain Reflectometer User Interface Design. The firmware built into the HP 8145A OTDR is the invisible intelligence that makes a complex instrument easy to use, by Joachim Vobis, pg 35-38

Printing on Plain Paper with a Thermal Inkjet Printer. An understanding of “plain papers” and how their variability affects performance played a key role in the development of the HP DeskJet printer, by Steven J. Bares, pg 39-44

Host Independent Microprocessor Development Systems. A new architecture makes it possible to use this family of emulators with workstations, mainframes, or personal computers. The cabling technology and chassis design improve performance and usability, by Arnold S. Berger, pg 45-51. HP 64700 Series.

Host Independent Emulator Software Architecture. Built into the firmware of the HP 64700 Series host independent emulators in an entire microprocessor development system, by William A. Fischer, Jr., pg 52-56

Expanded Memory for the HP Vectra ES Personal Computer. This memory subsystem provides high-performance expanded memory and extended memory support for HP Vectra Personal Computer applications while maintaining compatibility with industry standards, by Gary W. Lum, Milton J. Lau, Wesley H. Stelter, pg 57-63

LIM EMS 3.2 and 4.0, pg 61

Expanded versus Extended Memory, pg 62

Index: Volume 39 January 1988 through December 1988. PART 1: Chronological Index, pg 64-65. PART 2: Subject Index, pg 66-69. PART 3: Product Index, pg 69-70. PART 4: Author Index, pg 70-71.

Authors December 1988: Franz Sischka, Michael Fleischer-Reumann, Moshe Nazarathy, Steven [Steve] A. Newton, Siegfried [Sigi] Gross, Robin Giffard, Jurgen Beck, Wilfried [Willy] Pless, Jochen Rivoir, Joachim Vobis, Steven [Steve] J. Bares, Arnold [Arnie] S. Berger, William [Bill] A. Fischer, Jr., Gary W. Lum, Milton J. Lau, Wesley [Wes] H. Stelter, Ulrich H. Haeberien, Alexander [Alex] Keller, pg 72-73

Generalization of the Redfield-Kunz Treatment of Quadrature Phase Time Data. A prescription is given to computer the complex Fourier transform spectrum from quadrature phase time data when the x and y signals are sampled neither simultaneously nor alternately. This case applies to the sampling scheme of the HP 5180A Waveform Recorder, by Alexander Keller, Ulrich H. Haeberlen, pg 74-76

January 1987 v.38 n.1

Cover: HP 3562A Analyzer

Low-Frequency Analyzer Combines Measurement Capability with Modeling and Analysis Tools. HP’s next-generation two-channel FFT analyzer can be used to model a measured network in a manner that simplifies further design, by Eric J. Wicklund, Michael L. Hall, Edward S. Atkinson, Gaylord L. Wahl, Jr., Steven K. Peterson, pg 4-16. 3562A.

Applications, pg 7

Measurement Modes and Digital Demodulation for a Low-Frequency Analyzer. Swept sine and linear and logarithmic resolution modes and demodulation using digital signal processing algorithms provide greater accuracy and measurement convenience, by Edward S. Atkinson, Ronald W. Potter, James A. Vasil, Raymond C. Blackham, pg 17-25. 3562A.

Demodulation Example, by Ronald W. Potter, pg 22-23

Analyzer Synthesizes Frequency Response of Linear Systems. Pole-zero, pole-residue, or polynomial models can be synthesized for comparison with measured responses of low-frequency filters and closed-loop control systems, by James L. Adcock, pg 25-32. 3562A.

Curve Fitter for Pole-Zero Analysis. This curve fitting algorithm can derive the poles and zeros of measured frequency responses, by James L. Adcock, pg 33-36. 3562A.

Authors January 1987: Gaylord L. Wahl, Jr., Michael [Mike] L. Hall, Edward [Sandy] S. Atkinson, Eric J. Wicklund, Steven [Steve] K. Peterson, Raymond [Ray] C. Blackham, Ronald [Ron] W. Potter, James A. Vasil, James [Jim] L. Adcock, James [Jim] R. Callister, Craig W. Pampeyan, pg 36-37

Performance Analysis of the HP 3000 Series 70 Hardware Cache. Measurements and modeling pointed the way to improved performance over the Series 68, by Craig W. Pampeyan, James R. Callister, pg 38-48

Measurement Tools, pg 39

The Series 70: Not Just a Cache, pg 40

How a Cache Works, pg 42

Realistic Cache Simulation, pg 45

February 1987 v.38 n.2

Cover: The detector assembly of the HP 81520A Optical Head

A New Family of Precise, Reliable, and Versatile Fiber Optic Measurement Instruments. The family members are an average power meter, two optical heads, three LED sources, two optical attenuators, and an optical switch, by Michael Fleischer-Reumann, pg 4-5. 8158B, 8154B, 8152A, 8159A, 81521B.

A Color-Coding Scheme for Fiber Optic Instruments and Accessories, pg 5. 81050BL.

Stable LED Sources for a Wide Range of Applications. Three models provide power at 850, 1300 and 1550 nm, by Michael Fleischer-Reumann, pg 6-8. 8154B.

An Accurate Two-Channel Optical Average Power Meter. Accuracy is as high as ±0.15dB. Resolution is 10-pW, by Horst Schweikardt, pg 8-11. 8152A.

Optical Power Meter Firmware Development. Objectives included a friendly operating concept and effective support for the hardware designers, by Bernhard Flade, Michael Goder, pg 12-15. 8152A.

Detectors for Optical Power Measurements. Silicon is best for short wavelengths only. Germanium has broader bandwidth, by Josef Becker, pg 16-21

Precision Optical Heads for 850 to 1700 and 450 to 1020 Nanometers. On-board calibration data and a precision optical interface contribute to accurate measurements, by Hans Huning, Michael Fleischer-Reumann, Siegmar Schmidt, Emmerich Muller, pg 22-27. 8152A, 81521B, 81520A.

Optical Power Splitter, by Siegmar Schmidt, pg 25

A High-Precision Optical Connector for Optical Test and Instrumentation. Key characteristics are reliability, long lifetime, repeatability, temperature stability and low insertion loss, by Wilhelm Radermacher, pg 28-30. Diamond HMS-10/HP.

Design Approach for a Programmable Optical Attenuator. A fiberless design makes the long-wavelength model suitable for both single-mode and multimode applications, by Michael Schlicker, Bernd Maisenbacher, Siegmar Schmidt, pg 31-35. 8158B.

A Programmable Fiber Optic Switch. Its main features are good repeatability and low insertion loss, by Michael Fleischer-Reumann, pg 36. 8159A.

Authors February 1987: Michael Fleischer-Reumann,  Horst Schweikardt, Michael Goder, Bernhard Flade, Josef [Jo] Becker, Johannes [Hans] Huning, Siegmar Schmidt, Emmerich Muller, Wilhelm Radermacher, Michael Schlicker, Bernd Maisenbacher, Louis [Lou] J. Salz, Gleen E. Elmore, pg 37-38

Quality Microwave Measurement of Packaged Active Devices. A special fixture, the HP 8510 Microwave Network Analyzer and the concept of de-embedding provide a solution to a formerly difficult measurement problem, by Louis J. Salz, Glenn E. Elmore, pg 39-48

HP 8510 Software Signal Processing, by Michael Neering, pg 47

March 1987 v.38 n.3

Cover: Model 840/Series 930 Processor, an 8M-byte memory module and a system monitor

Hardware Design of the First HP Precision Architecture Computers. The HP 3000 Series 930 and the HP 9000 Model 840 are implemented with commercial TTL logic, by Allan S. Yeh, Ross V. La Fetra, Edward M. Jacobs, David A. Fotland, Simin I. Boschma, William R. Bryg, John F. Shelton, pg 4-17

An Automated Test System for the First HP Precision Architecture Computers. Besides testing for proper operation, the system gathers specific failure information and generates summary statistics to be used in improving the manufacturing process, by Randy J. Teegarden, Long C. Chow, Thomas B. Wylegala, pg 18-20. HP 9000 Model 840, HP 3000 Series 930.

A Distributed Terminal Controller for HP Precision Architecture Computers Running the MPE XL Operating System. Up to 48 terminals or printers connected to each controller communicate with HP 3000 Series 930 or 950 Computers over an IEEE 802.3 local area network, by Olivier Krumeich, Eric Lecesne, Jean-Pierre Picq, Gregory F. Buchanan, Francois Gaullier, Heng V. Te, pg 21-28. 2345A.

Hewlett-Packard Precision Architecture Compiler Performance. Using a combination of simple instructions, optimized in-line code, and highly specialized Millicode routines, HP Precision Architecture machines perform many complex operations faster than CISC machines, by William B. Buzbee, Karl W. Pettis, pg 29-35

Authors March 1987: Edward [Ed] M. Jacobs, Ross V. La Fetra, Allan S. Yeh, William [Bill] R. Bryg, John F. Shelton, Simin I. Boschma, David [Dave] A. Fotland, Long C. Chow, Randy J. Teegarden, Thomas [Tom] B. Wylegala, Eric Lecesne, Heng V. Te, Jean-Pierre Picq, Gregory [Greg] F. Buchanan, Olivier Krumeich, Francois Gaullier, William [Bill] B. Buzbee, Karl W. Pettis, Zvonko Fazarinc, pg 35-37

Viewpoints: A Viewpoint on Calculus. Presented to the Mathematics Panel of the American Association for the Advancement of Science on April 5, 1986: Should infinitesimal calculus be taught at all?, by Zvonko Fazarinc, pg 38-40

See Also: Reader Forum: Letter from Alain Maruari regarding “A Viewpoint on Calculus”;  letter from author Zvonko Fazarinc in response, page 22-23 in the June 1987 issue

April 1987 v.38 n.4

Cover: Finite element analysis of a printed circuit board subpanel

Digital Signal Generator Combines Digital and Analog Worlds. This new generator provides 24 parallel or two serial data channels, two arbitrary waveform analog channels, or a combination of digital and analog outputs, by Michael Vogt, Friedhelm Brilhaus, Frank Husfeld, Uwe Neumann, pg 4-12. 8175A.

User Interface and Software Architecture for a Data and Arbitrary Waveform Generator. Timing diagrams and arbitrary waveforms are easily created by means of a powerful graphic editor, by Wolfgang Srok, Rudiger Kreiser, Ulrich Hakenjos, pg 12-20. 8175A.

A Planning Solution for the Semiconductor Industry. Semiconductor device manufacturing has several situations that complicate normal production scheduling and medium-range planning. PL-10, part of HP’s Semiconductor Productivity Network, was developed to deal with these peculiarities, by Clemen Jue, Kelly A. Sznaider, Edward L. Wilson, pg 21-27

Authors April 1987: Uwe Neumann, Frank Husfeld, Michael Vogt, Friedhelm Brilhaus, Wolfgang Srok, Rudiger Kreiser, Ulrich Hakenjos, Clemen Jue, Edward [Ed] L. Wilson, Kelly A. Sznaider, John H. Lau, George E. Barrett, Duane E. Wolting, H. Dean Drake, pg 27-28

A Study of Panel Deflection of Partially Routed Printed Circuit Boards. Finite element analysis was used to show that the stress and deflection of partially routed boards during handling will be within allowable limits, by George E. Barrett, John H. Lau, pg 29-34

Deflections, Forces, and Moments of a Printed Circuit Board, pg 33-34

Reliability Theory Applied to Software Testing. The execution-time theory of software reliability is extended to the software testing process by introduction of an accelerating factor. It is shown that the accelerating factor can be determined from repair data and used to make prerelease estimates of software reliability for similar products, by H. Dean Drake, Duane E. Wolting, pg 35-39

Reader Forum: Letter from Yoav Talgam regarding “Hewlett-Packard Precision Architecture: The Processor”, page 4 in the August 1986 issue; letter from Michael J. Mahon regarding RISC-style processor architecture, pg 40

May 1987 v.38 n.5

Cover: HP DesignCenter Mechanical Engineering Series 5 and Series 10 systems

State-of-the-Art CAD Workstations for Mechanical Design. Part of HP’s DesignCenter, the ME Series 5/10 workstations simplify the creation of part drawings and the design of mechanical assemblies. A shared data bases improves communication among designers on a project and the results can be formatted automatically for use by NC manufacturing machinery, by Heinz P. Arndt, Dieter Sommer, Karl-Heinz Werner, Dieter Deyke, Wolfgang Kurz, pg 4-15. Mechanical Engineering.

ME Series 10 Link to HP-FE, by Guenter Voss, pg 14

The ME Series 10 NC Links, by Berthold Hug, pg 15

ME CAD Geometry Construction, Dimensioning, Hatching and Part Structuring. Construction lines and circles aid layout, and dimensioning and hatching adapt automatically to part design changes, by Friedhelm Ottliczky, Harold B. Prince, Heinz Diebel, Karl-Heinz Werner, Stephen Yie, pg 16-29. Mechanical Engineering.

Alpha Site Evaluation of ME Series 5/10. The best way to evaluate a CAD system is to design a real product with it, by Paul Harmon, pg 30-33. Mechanical Engineering, ME Series 10.

Authors May 1987: Karl-Heinz Werner, Dieter Sommer, Dieter Deyke, Wolfgang Kurz, Keinz P. Arndt, Harold [Hal] B. Prince, Friedhelm M. Ottliczky, Stephen Yie, Heinz Diebel, Paul Harmon, Robert [Bob] A. Piety, pg 34

Intrabuilding Data Transmission using Power-Line Wiring. An investigation of the transfer and noise characteristics of intrabuilding power lines has indicated the feasibility of their use for local data communication at data rates greater than 100kbits/s. Within certain constraints, data rates of 1Mbits/s or greater are possible. This paper discusses typical power-line characteristics in the 1-to-20-MHz region and one implementation of a 100-kbits/s spread spectrum data link operating in the 3.5-to-10.5-MHz range, by Robert A. Piety, pg 35-40. Carrier-current communication.

June 1987 v.38 n.6

Cover: HP 45911A Graphics Tablet

Permuted Trace Ordering Allows Low-Cost, High-Resolution Graphics Input. A scheme that substantially reduces the number of trace drivers required provides an inexpensive, but high-performance graphics tablet for HP’s HP-HIL family, by Thomas Malzbender, pg 4-7. Human Interface Link, 45911A.

The Hewlett-Packard Human Interface Link. Connecting human-input devices to personal computers and workstations is simplified by the definition of an interface link that adapts to the devices on the link and allows them to be added or disconnected during operation, by Robert R. Starr, pg 8-12. HP-HIL.

HP-HIL Input Devices, pg 9

Software Verification Using Branch Analysis. Imposing branch coverage requirements on a software testing project can be counterproductive unless a comprehensive branch analysis methodology is followed, by Daniel E. Herington, Paul A. Nichols, Roger D. Lipp, pg 13-22

Advantages of Code Inspections, by Dan Herington, pg 21

Reader Forum: Letter from Alain Maruari regarding “A Viewpoint on Calculus”, page 38 in the March 1987 issue;  letter from author Zvonko Fazarinc in response, pg 22-23

Authors June 1987: Thomas [Tom] Malzbender, Robert [Rob] R. Starr, Paul A. Nichols, Daniel [Dan] Herington, Roger D. Lipp, Yoshio Nishi, Marvin [Marv] L. Watkins, pg 23

Viewpoints: Direction of VLSI CMOS Technology. Will CMOS ICs be the technology driver of the future?, by Yoshio Nishi, pg 24-25

Software Architecture and the UNIX Operating System: An Introduction to Interprocess Communication. Signals, pipes, shared memory, and message queues are some of the facilities provided by the UNIXâ operating system for communication among software modules. The strength and weaknesses of each facility are discussed, by Marvin L. Watkins, pg 26-36

Benchmarking UNIX IPC Facilities, pg 31

July 1987 v.38 n.7

Cover: HP 3709A Constellation Display

Dedicated Display Monitors Digital Radio Patterns. One way of displaying the complex waveforms generated in digital radio systems is the constellation display, a method that allows rapid visual evaluation of a system’s performance, by John R. Pottinger, Murdo J. McKissock, David J. Haworth, pg 4-13. 3709A.

Automated Timing Jitter Testing, by David Robertson, pg 11

Constellation Measurement: A Tool for Evaluating Digital Radio. Statistical analysis of displayed constellation clusters helps determine digital radio impairments, by Murdo J. McKissock, pg 13-17. 3709A.

Authors July 1987: John R. Pottinger, David J. Haworth, Murdo J. McKissock, Geoffrey [Geoff] Waters, Anthony [Tony] Lymer, Dayananda [Daya] K. Rasaratnam, John A. Duff, pg 18

A Digital Radio Noise and Interference Test Set. This instrument facilitates the measurement of the bit error ratio (BER) for a digital communication system under simulated path fade conditions. A desired C/N or C/I ratio can be established and maintained in the presence of received radio signal variations, by Geoffrey Waters, pg 19-26. 3708A.

Noise Crest Factor Enhancement, by Dayananda K. Rasaratnam, pg 22

Noise Bandwidth Measurement, by Ian M. Matthews, pg 23

Microprocessor-Enhanced Performance in an Analog Power Meter. A custom thermal converter and an autozero circuit are key design components, by Anthony Lymer, pg 26-30. 3708A.

An Accurate Wideband Noise Generator and a High-Stability Reference Source. These modules make it possible to adjust the injected noise level automatically to maintain a desired carrier-to-noise ratio, by Dayananda K. Rasaratnam, pg 30-36. 3708A.

General-Purpose Wideband Thick-Film Hybrid Amplifier, by Geoffrey Waters, pg 33-34

Automated Radio Testing Shortens Test Time and Enhances Accuracy. This system can reduce the time required to measure flat fade performance by 60 to 90 percent, by John A. Duff, pg 36-40. 3708A, 3708S.

A Reusable Screen Forms Package, pg 38-39

August 1987 v.38 n.8

Cover: HPL-18C Business Consultant and the HP-28C Scientific Professional Calculator

A Handheld Business Consultant. The latest model in HP’s line of calculators designed for business and financial applications features a menu-driven user interface for selecting any of its many built-in functions or custom equations entered by the user, by Susan L. Wechsler, pg 4-9. HP-18C.

Cash Flow Analysis Using the HP-18C, pg 7

The Equation Solver Menu in the HP-18C, by Paul Swadener, pg 8-9

History and Inspiration of the Solve Interface, by Chris M. Bunsen, pg 10

An Evolutionary RPN Calculator for Technical Professionals. Symbolic algebraic entry, an indefinite operation stack size, and a variety of data types are some of the advancements in HP’s latest scientific calculator, by William C. Wickes, pg 11-17. HP-28C.

HP-28C Plotting, by Gabe L. Eisenstein, pg 15

Mechanical Design of the HP-18C and HP-28C Handheld Calculators. A folding case and two keyboards enhance functionality while reducing label clutter, by Mark A. Smith, Judith A. Layman, pg 17-20

Symbolic Computation for Handheld Calculators. A special operating system was developed to allow processing of a variety of data types from simple numbers to alphanumeric expressions, by Charles M. Patton, pg 21-25. ROM-based procedural language, RPL.

A Multichip Hybrid Printed Circuit Board for Advanced Handheld Calculators. All of the electronics and the display are mounted on a single 1.5-inch by 3-inch board, by Paul R. Van Loan, Robert E. Dunlap, Cornelis D. Hoekstra, Bruce R. Hauge, Chong Num Kwee, pg 25-30. HP-18C, HP-28C.

An Equation Solver for a Handheld Calculator. A combination of direct and iterative solving algorithms is used, by Paul J. McClellan, pg 30-34. HP-18C, HP-28C.

Electronic Design of an Advanced Technical Handheld Calculator. Custom CPU, ROM, and display driver ICs are key elements, by Preston D. Brown, Megha Shyam, Gregory J. May, pg 34-39. HP-28C.

Authors August 1987: Susan L. Wechsler, William [Bill] C. Wickes, Judith [Judi] A. Layman, Mark A. Smith, Charles [Charlie] M. Patton, Chong Num Kwee, Cornelis [Casey] D. Hoekstra, Robert [Bob] E. Dunlap, Bruce R. Hauge, Paul R. Van Loan, Paul J. McClellan, Megha Shyam, Preston D. Brown, Gregory [Greg] J. May, pg 39-40

September 1987 v.38 n.9

Cover: Processor boards from the HP 9000 Model 825 Computer (smaller board) and the HP 9000 Model 850S/HP 3000 Series 950 (larger board) and an unmounted pin-grid array package housing an NMOS-III VLSI chip

A VLSI Processor for HP Precision Architecture. The processor uses a set of ten custom VLSI chips fabricated in HP’s high performance NMOS-III technology, by Darius F. Tanksalvala, Steven T. Mangelsdorf, Darrell M. Burns, Paul K. French, Charles R. Headrick, pg 4-11

Pin-Grid Array VLSI Packaging, by John E. Moffatt, Asad Aziz, pg 10-11

HP Precision Architecture NMOS-III Single-Chip CPU. The chip implements all 140 of the architecture’s instructions on an 8.4-mm-square die containing 115,000 transistors, by Eric R. Delano, Jeffry D. Yetter, Mark A. Forsyth, William S. Jaffe, Jonathan P. Lotz, pg 12-18

Execution Unit, by Jeffry D. Yetter, pg 13-14

A Precision Clocking System, by William S. Jaffe, pg 17

Design, Verification, and Test Methodology for a VLSI Chip Set. Delivering ten complex chips concurrently takes more than a casual approach to organization and planning, by Tony W. Gaddis, Daniel L. Halperin, Stephen R. Undy, Charles Kohlhardt, Robert A. Schuchard, pg 18-26.

VLSI Test Methodology, by Don Weiss, pg 24-25

A Midrange VLSI Hewlett-Packard Precision Architecture Computer. It’s designed for mechanical and electrical computer-aided design, computer integrated manufacturing, real-time control, and general-purpose technical applications, by Robert J. Horning, Howell R. Felsenthal, Russell W. Mason, Thomas O. Meyer, Mark A. Ludwig, Thomas V. Spencer, Leith Johnson, Craig S. Robinson, pg 26-34. HP 9000 Model 825.

[Authors:] Darius F. Tanksalvala, Steven [Steve] T. Mangelsdorf, Charles [Bob] R. Headrick, Paul K. French, Darrell M. Burns, Eric R. DeLano, Jeffry [Jeff] D. Yetter, Mark A. Forsyth, Jonathan [Jon] P. Lotz, William [Bill] S. Jaffe, Stephen [Steve] R. Undy, Robert [Bob] A. Schuchard, Tony W. Gaddis, Charles [Charlie] Kohlhardt, Daniel [Dan] L. Halperin, Thomas [Tom] O. Meyer, Howell R. Felsenthal, Thomas [Tom] V. Spencer, Mark A. Ludwig, Russell [Russ] W. Mason, Robert [Bob] J. Horning, Craig S. Robinson, Leith Johnson, Richard Chin, Gerald [Gerry] R. Gassman, Marlin Jones, Ayee Goundan, Robert [Bob] D. Odineal, Michael [Mike] W. Schrempp, pg 35-37

VLSI-Based High-Performance HP Precision Architecture Computers. The same system processing unit powers two computer systems, one running the MPE XL operating system for commercial data processing and one running the HP-UX operating system for technical and real-time applications, by Robert D. Odineal, Marlin Jones, Ayee Goundan, Michael W. Schrempp, Gerald R. Gassman, Richard Chin, pg 38-48. HP 9000 Model 850S, HP 3000 Series 950.

October 1987 v.38 n.10

Cover: A CAD system simulation of the 82240A printer’s paper door rotation

In-service Transmission Impairment Testing of Voice-Frequency Data Circuits. This transmission impairment measuring set operates on the live modem signal instead of special test signals. It warns of problems while the channel is in service, so preventive maintenance can be scheduled, by Norman Carder, W. Gordon Rhind, James H. Elliott, David W. Grieve, William I. Dunn, pg 4-15. 4948A.

Processing Passband Signals in Baseband, pg 11

LMS Algorithm for Equalizer Update, pg 13

Digital Phase-Locked Loops, pg 15

An Infrared Link for Low-Cost Calculators and Printers. Since the sender of this unidirectional link gets no feedback from the receiver, allowances must be made for worst-case conditions, by Robert S. Worsley, Bruce A. Stephens, Steven L. Harper, pg 16-21.

A Low-Cost Wireless Portable Printer. Based on a unidirectional infrared transmission path, this small thermal printer can provide hard copy of HP-18C and HP-28C calculations, by David L. Smith, Masahiko Muranami, pg 21-23. 82240A.

Manufacturing State-of-the-Art Handheld Calculators. Robots and special fixturing help keep costs low, by Richard W. Riper, pg 24-27. HP-18C, HP-28C.

Information Technology and Medical Education. This paper discusses the use of information technology in an experimental curriculum at Harvard Medical School and describes several of the computer-based educational modules that have been developed for the program, by Ethan A. Foster, Gordon T. Moore, M.D., G. Octo Barnett, M.D., Judith L. Piggins, pg 28-35. Harvard Medical School.

Authors October 1987: Norman Carder, William [Ian] I. Dunn, David W. Grieve, James [Jim]  H. Elliott, W. Gordon Rhind, Robert [Bob] S. Worsley, Bruce A. Stephens, Steven [Steve] L. Harper, Masahiko [Jack] Muranami, David [Dave] L. Smith, Richard [Rick] W. Riper, G. Octo Barnett, Gordon T. Moore, Judith [Judy] L. Piggins, Ethan A. Foster, Robin M. Gallimore, Derek Coleman, pg 35-36

A Framework for Program Development. This paper present a framework for recording a software design activity as a directed acyclic design graph, where each node denotes a fragment of the design and each arrow represents some kind of design decision that has been made, by Robin M. Gallimore, Derek Coleman, pg 37-40. Framework for Program Development, FPD.

November 1987 – no issue published. As of December 1987, the Hewlett-Packard Journal will be published six times a year, in December, February, April, June, August and October.

December 1987 v.38 n.11

First bimonthly issue. As of December 1987, the Hewlett-Packard Journal will be published six times a year, in December, February, April, June, August and October.

Cover: A three-dimensional model of a type of signal used in modern radar systems – the frequency chirp

Vector Signal Generation and Analysis. This issue contain several articles describing the development of the HP 8780A Vector Signal Generator and the HP 8980A Vector Analyzer. To appreciate the nature of these products it is useful to discuss some of the concepts of vector modulation and its applications, by Allen P. Edwards, pg 4-5

Hardware System Design for a Vector Analyzer, by Andrew H. Naegeli, Juan Grau, pg 6-17. 8980A.

Quadrature and Phase Errors in Vector Demodulation, by Juan Grau, pg 15

Firmware System Design for a Vector Analyzer, by Stanley P. Woods, Brian S. Messenger, Peter H. Fisher, pg 17-24. 8980A.

Vector Modulation in a Signal Generator. The HP 8780A offers a wide variety of modulation in both analog and digital formats. By combining the different modulation types, diverse signals such as Doppler-shifted QPSK for satellite communication can be simulated, by David L. Gildea, Donald R. Chambers, pg 25-29

Firmware for a Vector Signal Generator, by Eric D. McHenry, James E. Jensen, pg 30-33. 8780A.

Low-Noise Synthesizer Design, by Thomas J. Carey, John C. Lovell, Thomas L. Grisell, pg 34-38. 8780A.

Digital and Vector Baseband Circuits for a Vector Signal Generator. By using a vector modulator instead of conventional amplitude and frequency modulators, the HP 8780A has the ability to generate complex digital and vector modulations. The baseband system is vastly different from those found in conventional signal generators. This system also provides the instrument with some special features, by Chung Y. Lau, pg 39-44

A GaAs IC Current Switch, pg 41

Describing Signals in the I-Q Domain, pg 42-43

A Wideband FM Subsystem for a Low-Noise Synthesizer Module, by Eric D. McHenry, pg 45-48. 8780A.

Vector Modulator, Output Amplifier, and Multiplier Chain Assemblies for a Vector Signal Generator, by Mark J. Woodward, Eric B. Rodal, Wayne M. Kelly, Pedro A. Szente, James D. McVey, pg 48-52. 8780A.

Baseband Calibration, by Paul S. Stafford, pg 50

A Combinational Board Test System. The HP 3065AT Tester provides a completely integrated set of resources for testing analog, hybrid, and digital circuits incorporating surface mounted devices, application specific ICs and VLSI circuits, by Michael E. Gravitz, pg 53-64

Interactive Graphical Debugging Package, by George Booth, pg 58-59

Authors December 1987: Allen P. Edwards, Juan Grau, Andrew [Andy] H. Naegeli, Stanley [Stan] P. Woods, Brian S. Messenger, Peter H. Fisher, David [Dave] R. Gildea, Donald [Don] R. Chambers, James [Jim] E. Jensen, John C. Lovell, Thomas [Tim] [sic] J. Carey, Thomas [Tom] L. Grisell, Chung Y. Lau, Eric D. McHenry, Pedro [Pete] A. Szente, Eric B. Rodal, Mark J. Woodward, James [Jim] D. McVey, Wayne M. Kelly, Michael [Mike] E. Gravitz, Alan J. Kondoff, John R. Busch, Darryl Ouye, Keith Keilman, Daniel [Dan] J. Magenheimer, Arndt [Arne] B. Bergh, James [Jim] A. Miller, pg 65-67

MPE XL: The Operating System for HP’s Next Generation of Commercial Computer Systems. MPE XL is a new commercial operating system developed for HP Precision Architecture computer systems. It provides fundamental advances in operating system technology and helps users migrate to the new systems by providing maximum compatibility with existing systems, by Darryl Ouye, John R. Busch, Alan J. Kondoff, pg 68-86

HP 3000 Emulation on HP Precision Architecture Computers. Two software subsystems for HP Precision Architecture machines provide program execution that duplicates that of HP 3000s running the MPE V operating system, by Daniel J. Magenheimer, Arndt B. Bergh, Keith Keilman, James A. Miller, pg 87-89

Index: Volume 38 January 1987 through December 1987. PART 1: Chronological Index, pg 90-91. PART 2: Subject Index, pg 91-94. PART 3: Product Index, pg 95. PART 4: Author Index, pg 95-96.

January 1986 v.37 n.1

Cover: High-Precision Architecture

Compilers for the New Generation of Hewlett-Packard Computers. Compilers are particularly important for the reduced-complexity, high-precision architecture of the new machines. They make it possible to realize the full potential of the new architecture, by Jon W. Kelley, Deborah S. Coutant, Carol L. Hammond, pg 4-18. Spectrum program.

See Also: Reader Forum: Letter from D. ing [sic] Dejan Claud regarding “Compilers for the New Generation of Hewlett-Packard Computers”; letter from Michael J. Mahon regarding LOAD executions, page 44 in the August 1986 issue.

Components of the Optimizer, by Suneel Jain, pg 6-7

An Optimization Example, pg 16-17

Authors January 1986: John W. Kelley, Deborah [Debbie] S. Coutant, Carol L. Hammond, Thomas [Tom] H. Daniels, John Fenoglio, Steven [Steve] T. Van Voorhis, Emil Maghakian, Frances [Frank] E. Bockman, Jorge Sanchez, Daniel [Dan] B. Harrington, pg 18-19

A Stand-Alone Measurement Plotting System. This compact laboratory instrument serves as an X-Y recorder, a low-frequency waveform recorder, a digital plotter, or a data acquisition system, by Thomas H. Daniels, John Fenoglio, pg 20-24. 7090A.

Eliminating Potentiometers, by Stephen D. Goodman, pg 22-23

Digital Control of Measurement Graphics. Putting a microprocessor in the servo loop is a key feature. A vector profiling algorithm is another, by Steven T. Van Voorhis, pg 24-26. 7090A.

Measurement Graphics Software. This package simplifies measuring, recording, plotting, and annotating low-frequency phenomena, by Francis E. Bockman, Emil Maghakian, pg 27-32. 7090A, 17090A.

Analog Channel for a Low-Frequency Waveform Recorder. No potentiometers are used in this design that automatically zeros and calibrates its input ranges, by Jorge Sanchez, pg 32-35. 7090A.

Usability Testing: A Valuable Tool for PC Design. Evaluating the experiences of users unfamiliar with a new computer product can provide valuable guidance to the designer and the documentation preparer, by Daniel B. Harrington, pg 36-40.

February 1986 v.37 n.2

Cover: A photomicrograph of a gallium arsenide sampler chip

Gallium Arsenide Lowers Cost and Improves Performance of Microwave Counters. A proprietary GaAs sampling integrated circuit is the basis for a new family of microwave counters that operate up to 40 GHz, by Scott R. Gibson, pg 4-10. 5350/51/52A

Creating Useful Diagnostics, by Sally Martin, pg 5

Manufacturing Advances, by Tom Beckman, pg 7

A New Power Transformer, by Bo Garrison, pg 9

Optimum Solution for IF Bandwidth and LO Frequencies in a Microwave Counter. Inequalities involving the IF bandwidth and LO frequencies were used as constraints in a computer-solved linear programming problem, by Luiz Peregrino, pg 11-14

Seven-Function Systems Multimeter Offers Extended Resolution and Scanner Capabilities. This new 3 1/2 to 6 1/2 digit DMM measures frequency and period as well as dc and ac voltage, dc and ac current, and resistance. Extended resolution provides an extra digit, by Thomas G. Rodine, Joseph E. Mueller, Scott D. Stever, Ronald K. Tuttle, Douglas W. Olsen, pg 15-23. 3457A.

Advanced Scalar Analyzer System Improves Precision and Productivity in R&D and Production Testing. This “voltmeter for the microwave engineer” measures insertion loss and gain, return loss, and power quickly and accurately, by Frederic W. Woodhull II, John C. Faick, Kenneth A. Richter, Joseph Rowell, Jr., Jacob H. Egbert, Douglas C. Bender, Keith F. Anderson, pg 24-38. 8757A.

Filter Measurement with the Scalar Network Analyzer, pg 25

Scalar Analyzer System Error Correction, pg 29-30

Calibrator Accessory, pg 33

Voltage-Controlled Device Measurements, pg 37

Authors February 1986: Scott R. Gibson, Luiz [Lou] Peregrino, Thomas [Tom] G. Rodine, Ronald [Ron] K. Tuttle, Douglas [Doug] W. Olsen, Joseph [Joe] E. Mueller, Scott D. Stever, Douglas [Doug] C. Bender, Jacob [Jake] H. Egbert, Kenneth A. Richter, Frederick [Fred] W. Woodhull II, John C. Faick, Keith F. Anderson, Joseph Rowell, Jr., pg 39-40

March 1986 v.37 n.3

Cover: The HP Flight Planner/Flight Simulator application

An Introduction to Hewlett-Packard’s AI Workstation Technology. Here is an overview of HP artificial intelligence workstation research efforts and their relationship to HP’s first AI product, a Common Lisp Development Environment, by Martin R. Cagan, pg 4-14

HP’s University AI Program, by Seth G. Fearey, pg 7

A Defect Tracking System for the UNIX Environment. Created in response to a lack of effective defect tracking and analysis tools for software development, DTS in now used by 24 HP divisions, by Steven R. Blair, pg 15-18.

A Toolset for Object-Oriented Programming in C. Object-oriented programming seeks to encapsulate entities in a program into objects, methods, and messages. It is useful for writing highly dynamic software that is well-structured and easily maintainable. This paper presents a set of tools that support object-with-methods-data structuring, by Gregory D. Burroughs, pg 19-23

Appendix: The following program fragment is the example from the accompanying paper as it would appear to the program designer, pg 23

Tools for Automating Software Test Package Execution. Developed by one HP Division and now used by others, these two tools reduce the time it takes to develop test packages and make it easy to reuse test packages in regression testing, by Craig D. Fuget, Barbara J. Scott, pg 24-28. Virtual Terminal, Scaffold Test Package Automation Tool and Test Package Standard.

Using Quality Metrics for Critical Application Software. Software metrics have been used to evaluate the quality of a computer-based medical device produced by a large-scale software development project, by William T. Ward, pg 28-31

P-PODS: A Software Graphical Design Tool. P-PODS enforces formal software design, allows designs to be maintained on-line and produces output suitable for design walkthroughs, by Robert W. Dea, Vincent J. D’Angelo, pg 32-35

Triggers: A Software Testing Tool. Triggers as a software testing methods focuses on testing the boundary conditions of the software, and enables the software tester to be more productive, by John R. Bugarin, pg 35-36

Hierarchy Chart Language Aids Software Development. HCL is used by software designers at several Hewlett-Packard Divisions to speed up the process of generating hierarchy charts, by Bruce A. Thompson, David J. Ellis, pg 37-42

Module Adds Data Logging Capabilities to the HP-71B Computer. This 64K-byte plug-in ROM offers new BASIC language keywords for control of a battery-powered data acquisition and control unit and nine application programs for data capture, presentation, and transmission to host computers, by James A. Donnelly, pg 43-46. 3421A.

System Monitor Example, pg 45

Authors March 1986: Martin [Marty] R. Cagan, Steven [Steve] R. Blair, Gregory [Greg] D. Burroughs, Craig D. Fuget, Barbara J. Scott, William [Jack] T. Ward, Robert [Bob] W. Dea, Vincent [Vince] J. D’Angelo, John R. Bugarin, Bruce A. Thompson, David J. Ellis, James [Jim] A. Donnelly, pg 47-48

April 1986 v.37 n.4

Cover: The seven hybrid circuits in each instrument of the HP 54110D

A Data Acquisition System for a 1-GHz Digitizing Oscilloscope. Random repetitive sampling yields an equivalent digitizing rate of 100 GHz for repetitive signals, by Kenneth Rush, Danny J. Oldfield, pg 4-11.54100A/D.

General-Purpose 1-GHz Digitizing Oscilloscopes, by Arthur W. Porter, pg 5-6

High-Performance Probe System for a 1-GHz Digitizing Oscilloscope. Because a typical system includes more than one class of signal, a versatile probe system is a must, by Arnold S. Berger, Kenneth Rush, William H. Escovitz, pg 11-19. 54100A/D.

Waveform Graphics for a 1-GHz Digitizing Oscilloscope. Fast plotting algorithms approximate the feel of an analog oscilloscope, by Rodney T. Schlater, pg 20-25. 54100A/D.

Hardware Implementation of a High-Performance Trigger System. The trigger system resembles the front end of a logic analyzer, by Scott A. Genther, Eddie A. Evel, pg 26-33. 54100A/D.

1-GHz Digitizing Oscilloscope Uses Thick-Film Hybrid Technology. some new processes were developed and some old ones were improved, by Derek E. Toeppen, pg 33-36. 54100A/D.

A Modular Power Supply. A primary assembly drives two switching mode dc-to-dc converters, by Jimmie D. Felps, pg 37-39. 54100A/D.

Program Helps Teach Digital Microwave Radio Fundamentals. The student is able to observe a model communications system and see the results of noise, fading and nonlinearities, by Christen K. Pedersen, pg 40-46. IQ Tutor, I·Q Tutor, 11736A.

Authors April 1986: Danny [Dan] J. Oldfield, Kenneth [Ken] Rush, Arnold [Arnie] S. Berger, William [Bill] H. Escovitz, Rodney [Rod] T. Schlater, Scott A. Genther, Eddie [Ed] A. Evel, Derek Toeppen, Jimmie [Jim] D. Felps, Christen [Chris] K. Pedersen, pg 47-48

May 1986 v.37 n.5

Cover: 61016A screen image reflected on other instruments

Low-Cost Automated Instruments for Personal Computers. Designed for the automated test and measurement requirements of a wide range of technical professionals, the components of this personal computer-based system include eight of the most widely used electronic instruments in modular, stackable cases, by William T. Walker, Charles J. Rothschild 3rd, Robert C. Sismilich, pg 4-10. HP PC Instruments

PC Instruments Modules, by Allan Levine, pg 6

Instrumentless Front-Panel Program Demonstrates Product Concept, by Robert C. Sismilich, pg 7

Versatile Microcomputer is Heart of PC Instruments Oscilloscope Module, by Dennis J. Weller, pg 8

Mechanical and Industrial Design of the PC Instruments Cabinet, by George Kononenko, David Schlesinger, pg 10

PCIB: A Low-Cost, Flexible Instrument Control Interface for Personal Computers. Two independent channels for serial and parallel communication are key to its design, by William L. Hughes, Kent W. Luehman, pg 11-16

A Custom HQMOS Bus Interface IC, by Diana G. Bostick, Ricky L. Pettit, pg 14-15

Interactive Computer Graphics for Manual Instrument Control. Using a PC’s CRT screen as an instrument’s front panel simplifies control and lowers the instrument’s cost, by William T. Walker, Robert C. Sismilich, pg 17-26. HP PC Instruments.

Mouse in Danger: Managing Graphics Objects, by Daniel J. Martin, pg 20

Oscilloscope Software Leverages Previous Concepts and Algorithms, by Helen Muterspaugh, Mimi Beaudoin, pg 22

Automated Testing of Interactive Graphics User Interfaces, by Buck H. Chan, pg 24-25

Industrial Design of Soft Front Panels, by David Schlesinger, pg 26

HP-IB Command Library for MS-DOS Systems. PC users can now control and use high-performance instruments with this software package and an appropriate HP-IB 9IEEE 488/IEC 625) interface, by David L. Wolpert, pg 27-29

Case Study: PC Instruments Counter Versus Traditional Counters. Combining the power of a personal computer with the measurement capability of a low-cost module with no front-panel controls of its own can be an attractive alternative to using traditional instruments for the owner of a personal computer, by Edward Laczynski, Robert V. Miller, pg 29-32. 61015A.

Reciprocal Counting in Firmware, by Robert V. Miller, pg 32

Salicide: Advanced Metallization for Submicrometer VLSI Circuits. A self-aligned titanium silicide process can be used to provide lower contact and interconnect resistances in VLSI circuits if one accounts for the effects of impurities, dopant redistribution, phase formation, and grain growth, by Jun Amano, pg 33-39. Self-aligned silicide.

Authors May 1986: Charles [Charlie] J. Rothschild 3rd, Robert [Bob] C. Sismilich, William [Bill] T. Walker, William [Bill] L. Hughes, Kent W. Luehman, David [Dave] L. Wolpert, Edward [Ed] Laczynski, Robert [Bob] V. Miller, Jun Amano, pg 39-40

June 1986 v.37 n.6

Cover: Integrated circuit artwork drawn automatically by a silicon complier

Integrated Circuit Procedural Language. ICPL is a Lisp-embedded procedural layout language for VLSI design. Circuit design in ICPL involves writing and working with programs that resemble procedures, take parameters, and can use the full symbolic programming power of Lisp. This allows circuit designers to write high-level software that procedurally builds ICs, by Paul K. Yip, Jeffrey A. Lewis, Andrew A. Berlin, Allan J. Kuchinsky, pg 4-10

Knowledge-Assisted Design and the Area Estimation Assistant, by Benjamin Y.M. Pan, Michael How, Allan J. Kuchinsky, pg 8-9

New Methods for Software Development: System for Just-in-Time Manufacturing. New approaches in prototyping, next-bench involvement, performance modeling, and project management created a high-quality software product in the absence of standards or existing systems, by Robert A. Passell, Raj K. Bhargava, Teri L. Lombardi, Alvina Y. Nishimoto, pg 11-18. HP JIT.

Comparing Manufacturing Methods, pg 13

Authors June 1986: Allan J. Kuchinsky, Paul K. Yip, Andrew [Andy] A. Berlin, Jeffrey [Jeff] A. Lewis, Alvina Y. Nishimoto, Robert [Bob] A. Passell, Teri L. Lombardi, Raj Bhargava, Raymond [Ray] G. O’Connell, Paul A. Magnin, James Chen, Leslie [Les] I. Halberg, Karl E. Thiele, Sydney [Syd] Karp, Barry F. Hunt, David [Dave] C. Hempstead, Steven [Steve] C. Leavitt, , pg 18-19

The Role of Doppler Ultrasound in Cardiac Diagnosis. In ultrasound imaging, a pulse of acoustic energy is transmitted into the human body and the strengths of the returning echoes from various organs and tissues are used to form an image on a display screen. Further information about blood flow and movement can be gained by measuring the shifts in the frequency of the echoes, by Raymond G. O’Connell, Jr., pg 20-25

Correction: The photographs in figure 3 on page 22, figure 4 on page 23, and figure 5 on page 24 in the article “The Role of Doppler Ultrasound in Cardiac Diagnosis”, were reproduced without any gray tones, page 22 in the August 1986

Doppler Effect: History and Theory. Data about blood flow anomalies can be obtained by observing the shift in frequency of ultrasonic imaging pulse echoes, by Paul A. Magnin, pg 26-31

Power and Intensity Measurements for Ultrasonic Doppler Imaging Systems. Carefully controlling the acoustic energy transmitted into the human body requires accurate analysis methods, by James Chen, pg 31-34.

See Also: Correction: A paragraph on page 34 in the article “ Power and Intensity Measurements for Ultrasonic Doppler Imaging Systems”, was omitted, page 41 in the July 1984 issue

Extraction of Blood Flow Information Using Doppler-Shifted Ultrasound. Frequency shifts in ultrasonic echoes are detected by means of specially designed filters and a quadrature sampler, by Karl E. Thiele, Leslie I. Halberg, pg 35-40. 77410A.

Continuous-Wave Doppler Board, by Rich Jundanian, pg 37

Observation of Blood Flow and Doppler Sample Volume, by Al Tykulsky, pg 39

Modifying an Ultrasound Imaging Scanner for Doppler Measurements. Changes in timing, more precise focusing, processing enhancements, and power-limiting software had to be developed, by Sydney M. Karp, pg 41-44. 77020A, 77200B.

Digital Processing Chain for a Doppler Ultrasound Subsystem. Time-domain quadrature samples are converted into a gray-scale spectral frequency display using a fast Fourier transform, moment calculations, and digital filtering, by David C. Hempstead, Barry F. Hunt, Steven C. Leavitt, pg 45-48. 77410A.

July 1986 v.37 n.7

Cover: HP’s briefcase-portable computers: The Portable and the Portable Plus

Design of HP’s Portable Computer Family. The Portable and Portable Plus Computers are compact, lightweight, battery-powered personal computers with built-in software and 80-character-line liquid-crystal displays designed for use by professionals who need portable computing capability in their work, by Courtney Loomis, Ella M. Duyck, Carl B. Lantz, John T. Eaton, Clifford B. Cordy, Jr., James W. Pearson, Michael J. Barbour, pg 4-13

Inside the LCDs for the Portable and Portable Plus, by Glenn Adler, pg 6-7

Low-Power Modes for Portable Computers, by Alesia Duncombe, pg 10-11

Hollow Studs for Package Assembly, pg 13

I/O and Data Communications in Portable Computers. Low-power consumption and small size are major design constraints for built-in modems and interfaces, by Andrew W. Davidson, Harold B. Noyes, pg 14-17. Portable, Portable Plus.

Personal Applications Manager for HP Portable Computers. PAM simplifies use of the Portable and Portable Plus Computers, even if the user is unfamiliar with MS-DOS commands, by Robert B. May, Alesia Duncombe, pg 18-21

Memory Management for Portable Computers. Handling a large system memory with electronic discs and built-in application ROMs requires clever control, by Mark S. Rowe, pg 21-25. Portable, Portable Plus.

A Hybrid Solution for a 25-Line LCD Controller. A hybrid design significantly reduces the space required while accommodating the needs of a larger display, by Glenn J. Adler, pg 25-27. Portable Plus.

Creating Plug-In ROMs for the Portable Plus Computer. An HP software package makes it easier for users to develop their own applications ROMs for the Portable Plus, by William R. Frolik, pg 28-30

Structure of a Plug-In ROM, pg 29

Authors July 1986: Carl B. Lantz, Michael [Mike] J. Barbour, James [Jim] W. Pearson, Courtney Loomis, Ella M. Duyck, John T. Eaton, Clifford [Cliff] B. Cordy, Jr., Harold B. Noyes, Andrew [Andy] W. Davidson, Alesia Duncombe, Robert [Bob] B. May, Mark S. Rowe, Gleen J. Adler, William [Bill] R. Frolik, Robert [Bob] J. Schneider, David L. Frydendall, Robert [Bob] M. Lenk, Bonnie Dykes Stahlin, Andrew [Drew] G. Anderson, Robert [Rob] D. Gardner, Ronald [Ron] G. Tolley, James [Jim] M. Umphrey, Jeffrey [Jeff] Tomberlin, Jeffrey [Jeff] H. Smith, Gordon A. Jensen, Stephen [Steve] P. Reames, Jerry D. Morris, pg 31-33

New HP-UX Features for HP 9000 Series 300 Workstations. The capabilities of the HP-UX operating system have been extended in the Series 300 implementation to handle real-time applications, communication with X.25 networks, and operating in native language, by David L. Frydendall, Bonnie Dykes Stahlin, Robert D. Gardner, Robert M. Lenk, Ronald G. Tolley, Andrew G. Anderson, Robert J. Schneider, pg 34-41

See Also: Reader Forum: Letter from John P. Chambers regarding local customs mentioned in “New HP-UX Features for HP 9000 Series Workstation”; letter from author Ronald G. Tolley regarding Native Language Support discussed in the same article, page 32 in the December 1986 issue.

Correction: A paragraph on page 34 in the article “ Power and Intensity Measurements for Ultrasonic Doppler Imaging Systems”, page 31 in the June 1986 issue, was omitted, pg 41

A Protocol Analyzer for Local Area Networks. This new analyzer allows 10 Mbit/s network monitoring, testing, and performance analysis independent of hardware and software composition. It permits a user to view network traffic, simulate node-to-node or network-wide traffic, and derive network statistics, by Gordon A. Jensen, Jeffrey H. Smith, Jeffrey Tomberlin, Stephen P. Reames, James M. Umphrey, Jerry D. Morris, pg 42-48. 4971S.

August 1986 v.37 n.8

Cover: A “block diagram” representing the HP Precision Architecture execution engine

Hewlett-Packard Precision Architecture: The Processor. This article describes the architecture’s basic organization, executive model, control flow model, addressing and protection model, functional operations, and instruction format and encoding, by William R. Bryg, Ruby Bei-Loh Lee, Michael J. Mahon, Jerome C. Huck, Terrence C. Miller, pg 4-21

See Also: Reader Forum: Letter from Yoav Talgam regarding “Hewlett-Packard Precision Architecture: The Processor”; letter from Michael J. Mahon regarding RISC-style processor architecture, page 40 in the April 1987 issue.

Floating-Point Coprocessor, pg 8-9

HP Precision architecture Caches and TLBs, pg 16-17

Authors August 1986: William [Bill] R. Bryg, Ruby Bei-Loh Lee, Michael J. Mahon, Jerome C. Huck, Terrence C. Miller, David [Dave] V. James, Stephen G. Burger, Robert [Bob] D. Odineal, Joseph [Tony] A. Lukes, Daniel [Dan] J. Magenheimer, pg 21-22

Correction: The photographs in figure 3 on page 22, figure 4 on page 23, and figure 5 on page 24 in the article “The Role of Doppler Ultrasound in Cardiac Diagnosis”, page 20 in the June 1986 issue, were reproduced without any gray tones, pg 22

“In printing the June 1986 issue, the photographs in Fig. 3 on page 22, Fig. 4 on page 23, and Fig. 5 on page 24 were reproduced without any gray tones…”, pg 22

Hewlett-Packard Precision Architecture: The Input/Output System. A simple, uniform architecture satisfies the I/O needs of large and small systems, and provides flexibility for future enhancements, by Robert D. Odineal, David V. James, Stephen G. Burger, pg 23-30

Hewlett-Packard Precision Architecture Performance Analysis. Performance analysis was crucial to instruction set selection, CPU design, MIPS determination, and system performance measurement, by Joseph A. Lukes, pg 30-39

The HP Precision Simulator. Designed for flexibility, portability, speed and accuracy, the simulator is useful for both hardware and software development, by Daniel J. Magenheimer, pg 40-43

Remote Debugger, by Dan Magenheimer, pg 43

Reader Forum: Letter from D. ing [sic] Dejan Claud regarding “Compilers for the New Generation of Hewlett-Packard Computers”, page 4 in the January 1986 issue; letter from Michael J. Mahon regarding LOAD executions, pg 44

September 1986 v.37 n.9

Cover: The Series 300 offers a range of options that would bewilder the typical PC buyer

Advanced Modular Engineering Workstations. This workstation system allows the user to choose the processor, display system, memory, interface cards, peripherals, and operating system most appropriate for the application, by Daryl E. Knoblock, John C. Keith, Michael K. Bowen, Gilbert I. Sandberg, Ronald P. Dean, pg 4-9. HP 9000 Series 300.

Modular Computer Low-End Processor Board Design. This single-board computer operates at 10 MHz and contains integral I/O interfaces, RAM, boot ROM, and bit-mapped display electronics, by Nicholas P. Mati, Martin L. Speer, pg 9-12. HP 9000 Model 310.

High-Performance SPU for a Modular Workstation Family. Users needing more performance than that provided by the SPU described in the preceding article can upgrade their system with this SPU running at 16.67 MHz and containing a 16K-byte cache memory, by Jonathan J. Rubinstein, pg 12-16. HP 9000 Model 320.

Custom VLSI Circuits for Series 300 Graphics. Two chips, a display controller and a color map and video DAC, reduce costs while improving the performance of bit-mapped, medium and high resolution, monochrome and color displays, by Richard E. Warner, David J. Hodge, James A. Brokish, pg 17-22.

Display Custom IC Design Methodology, by Bruce P. Bergmann, Kenneth P. Sandberg, pg 20

Software Compatibility for Series 200 and Series 300 Computers. Several software obstacles exist for the Series 200 user who wants to move to HP’s new family of modular workstations, the HP 9000 Series 300. This article identifies these obstacles and describes the features of BASIC 4.0 (the latest release of HP’s enhanced version of the BASIC language system) designed to overcome them, by Rosemarie Palombo, pg 22-27

Authors September 1986: Gilbert I. Sandberg, Ronald [Ron] P. Dean, Daryl E. Knoblock, John C. Keith, Michael [Mike] K. Bowen, Nicholas [Nick] P. Mati, Martin L. Speer, Jonathan [Jon] J. Rubinstein, David [Dave] J. Hodge, Richard E. Warner, James [Jim] A. Brokish, Rosemarie [Rose] Palombo, Robert [Bob] A. Adams, Kristy Ward Swenson, Amy Tada Mueller, Luis Hurtado-Sanchez, Rebecca A. Dahlberg, pg 27-29

Implementing a Worldwide Electronic Mail System. This paper reports Hewlett-Packard’s experience in the internal implementation of HP’s own electronic mail system product. HP DeskManager. Prospective implementers of electronic mail systems can use this information to increase their likelihood of success, by Robert A. Adams, Kristy Ward Swenson, Rebecca A. Dahlberg, Amy Tada Mueller, Luis Hurtado-Sanchez, pg 30-48

October 1986 v.37 n.10

Cover: A representation of a wide area network linking fanciful cities

Hewlett-Packard and the Open Systems Interconnection Reference Model. The OSI Reference Model of the International Organization for Standardization is seen as the most significant tool for meeting HP’s customers’ needs, by Donald C. Loughry, Gertrude G. Reusser, pg 4-5. ISO.

HP AdvanceNet: A Growth-Oriented Computer Networking Architectural Strategy. Based on the seven-layer ISO OSI model, HP AdvanceNet accommodates old and new protocols in the same network, ensures migration paths to new systems, and provides ease of use and transparency, by Atul Garg, Craig Wassenberg, Lyle A. Weiman, Robert J. Carlson, Arie Scope, pg 6-10. Open Systems Interconnection.

Network Services and Transport for the HP 3000 Computer. NS/3000 provides network services for HP 3000 Computers attached to local area networks. It is compatible with older network products, it is expandable to new network topologies, and it can communicate with other HP computers, by Kevin J. Faulkner, Charles W. Knouse, Brian K. Lynn, pg 11-18. OSI, Open Systems Interconnection.

A Local Area Network for HP Computers. LAN/3000 implements the IEEE 802.2 and 802.3 standards to interconnect HP 3000 Computers to other HP 3000s and to HP 1000 and HP 9000 Computers, by Charles J. de Sostoa, Tonia G. Graham, pg 18-22

Network Services for HP Real-Time Computers. HP 1000 Computers have had networking capabilities for nearly 15 years. The latest network services product conforms to HP AdvanceNet standards and supports local area networks and very large networks, by David M. Tribby, pg 22-27

Networking Services for HP 9000 Computers. Developing a networking service for the members of the HP 9000 family presented a number of design challenges, among them dealing with different microprocessor architectures, the introduction of new members to the family, and being able to communicate with other HP computer products, by J. Christopher Fugitt, Dean R. Thompson, pg 28-32

Connecting NS/9000 and NS/3000, by Tim DeLeon, pg 29

Leaf Node Architecture, by Carl Dierschow, pg 31-32

Authors October 1986: Donald [Don] C. Loughry, Gertrude [Trudy] G. Reusser, Robert [Bob] J. Carlson, Craig Wassenberg, Atul Garg, Lyle A. Weiman, Arie Scope, Kevin J. Faulkner, Brian K. Lynn, Charles W. Knouse, Tonia [Toni] G. Graham, Charles [Chuck] J. de Sostoa, David [Dave] M. Tribby, J. Christopher [Chris] Fugitt, Dean R. Thompson, Pierry Mettetal, Nancy L. Navarro, Timothy [Tim] C. Shafer, Deepak V. Desai, pg 33-35.

X.25 Wide Area Networking for HP Computers. HP provides access to X.25 packet switched networks for HP computers, and in cooperation with another company, can provide entire networks, by Pierry Mettetal, pg 36-40

DMI/3000: A Move Toward Integrated Communication. This product implements AT&T Information Systems’ Digital Multiplexed Interface standard to provide communication between computers and terminals or other computers over private digital telephone networks, by Deepak V. Desai, Timothy C. Shafer, Nancy L. Navarro, pg 41-48

Glossary of DMI Terms, pg 42

Companies Supporting the DMI Standard, pg 47

November 1986 v.37 n.11

Cover: Several mixers with their horn antennas of various sizes for operation in different frequency bands

Molecular-Scale Engineering of Compound Semiconductor Materials. The ever increasing sophistication of semiconductor electronic devices and integrated circuits continues to place increasing demands on the precision with which the underlying semiconductor materials are produced. The development of molecular beam epitaxy allows the highly repeatable growth of compound semiconductor epitaxial films (such as GaAs and Al_xGa_1-xAs) with atomically abrupt changes in alloy composition and doping and with excellent uniformity by Douglas M. Collins, pg 4-10. MBE, Molecular beam epitaxy.

Compound Semiconductor Alloys and Heterojunctions, pg 6

The Modulation-Doped Heterojunction, pg 8-9

Extending Millimeter-Wave Diode Operation to 110 GHz. Developing more rugged, integratable diode structures is the key, by Sigurd W. Johnsen, Eric R. Ehlers, Douglas A. Gray, pg 10-14

26.5-to-40-GHz Waveguide Detector, by Herb Upham, pg 13

Diode Integrated Circuits for Millimeter-Wave Applications. GaAs diode integrated circuits based on metal-semiconductor (Schottky) or modified barrier diodes have now extended the operating frequency range of small-scale ICs beyond 100 GHz. These circuits, which form the basis for many of HP’s new millimeter-wave instruments, are useful for nonlinear and frequency-translation applications, by Scott S. Elliott, William J. Anklam, George A. Patterson, Mark P. Zurakowski, Domingo A. Figueredo, Susan R. Sloan, pg 14-21

Unbiased Subharmonic Mixers for Millimeter-Wave Spectrum Analysis. These units let you use your microwave spectrum analyzer for measurements up to 110 GHz, by Robert J. Matreci, pg 22-26

Authors November 1986: Douglas [Doug] M. Collins, Sigurd [Sig] W. Johnsen, Eric R. Ehlers, Douglas [Doug] A. Gray, Susan R. Sloan, Mark P. Zurakowski, William [Bill] J. Anklam, Domingo A. Figueredo, Scott S. Elliott, George A. Patterson, Robert [Bob] J. Matreci, Bruce J. Richards, David [Dave] B. Wasmuth, Craig M. Myles, Lynn R. Slater, Jr., Keith A. Harrison, Diane M. Ahart, R. Michael Young, Brian T. Button, Roy M. Vandoorn, George R. Gottschalk, Robert [Bob] I. Marcus, pg 27-29

Predictive Support: Anticipating Computer Hardware Failures. Predictive Support software for the HP 3000 Computer lives on the customer’s system and notifies appropriate personnel of impending failures, by David B. Wasmuth, Bruce J. Richards, pg 30-33

Systems Design for Worldwide Delivery of Customer Support, by Blenda Mariani, pg 32

Logging Event Data in the Trend Log, pg 33

AIDA: An Expert Assistant for Dump Readers. This expert-system-based program increases human readers’ productivity and success rate in HP 3000 memory dump analyses, by Lynn R. Slater, Jr., Keith A. Harrison, Craig M. Myles, pg 34-41. Automatic Interactive Dump Assistant.

What is a Memory Dump? pg 35

A Troubleshooting Aid for Asynchronous Data Communications Links. Schooner is an expert system for fault diagnosis and personnel training on point-to-point datacom links, by Diane M. Ahart, R. Michael Young, Brian T. Button, pg 42-47

Hierarchies, pg 46

A Rule-Based System to Diagnose Malfunctioning Computer Peripherals. The Intelligent Peripheral Troubleshooter, an expert system, currently diagnoses malfunctions in HP disc drives, but other devices will be easy to add to its repertoire, by George R. Gottschalk, Roy M. Vandoorn, pg 48-53. IPT.

Multilevel Constraint Based Configuration. The goal of Mycon, a prototype expert system for configuring computer systems, is to relieve the support engineer of the tedious task of configuration of a customer order, by Robert I. Marcus, pg 54-56

December 1986 v.37 n.12

Cover: Origins of the HP-UX operating system sculpted in plastic

The HP-UX Operating System on HP Precision Architecture Computers. HP-UX is the technical operating system for HP Precision Architecture processors. It’s an extension of AT&T’s UNIX System V.2, by Gary Shiu-Fan Ho, Steven R. Kusmer, John R. Sontag, Frederick W. Clegg, pg 4-22

A UNIX System V Compatible Implementation of 4.2BSD Job Control, by David C. Lennert, pg 9

Decreasing Real-Time Process Dispatch Latency Through Kernel Preemption, by David C. Lennert, pg 13-14

Index: Volume 37 January 1986 through December 1986. PART 1: Chronological Index, pg 23-24. PART 2: Subject Index, pg 24-28. PART 3: Product Index, pg 28-29. PART 4: Author Index,  pg 29-30.

Authors December 1986: John R. Sontag, Gary Shiu-Dan Ho, Steven [Steve] R. Kusmer, Frederick [Fred] W. Clegg, Thomas [Tom] M. Hirata, David E. Singleton, Judson [Jay] E. Veazey, Mark A. Sikes, Michael [Mike] J. Pechulis, Ann M. Koehler, Krishnan [Vish] Vishwanath, Jenny Ng, Alan [A. J.] S. Brown, pg 30-31

Reader Forum: Letter from John P. Chambers regarding local customs mentioned in “New HP-UX Features for HP 9000 Series Workstation”, page 38 in the July 1986 issue; letter from author Ronald G. Tolley regarding Native Language Support discussed in the same article, pg 32

Data Base Management for HP Precision Architecture Computers. HP ALLBASE supports both network and relational data access and runs under both the MPE XL and the HP-UX operating systems. Migration of existing data bases to the new architecture has been carefully planned for, by Krishnan Vishwanath, Judson E. Veazey, Jenny Ng, Michael J. Pechulis, Mark A. Sikes, Thomas M. Hirata, Ann M. Koehler, David E. Singleton, Alan S. Brown, pg 33-48

Data Storage in ALLBASE, pg 46-48

January 1985 v. 36 n.1

Cover: Miniature Optical Bench from the HP 8150A

Optical Stimulus and Receivers for Parametric Testing in Fiber Optics. An optical power source and an optical pulse power meter, both calibrated and programmable, provide reliable device and system testing for the expanding field of fiber optics, by Achim Eckert, Wolfgang Schmid, pg 4-7. 8150A, 8151A.

Handling Fiber Optic Components, by Wolfgang Schmid, pg 6

A Precise, Programmable 850-nm Optical Signal Source. Modulate the output using the internal pulse/function generator or your own external source, by Klaus Hoeing, Bernhard Flade, Wolfgang Schmid, Rainer Eggert, pg 7-18. 8150A.

Laser Safety Practices, pg 8

A Versatile, Programmable Optical Pulse Power Meter. There’s a choice of optical heads for operation at 550 to 950 nm or 950 to 1750 nm, by Werner Berkel, Michael Goder, Josef Becker, Wilfried Pless, Bernd Maisenbacher, Volker Eberle, Hans Huning, pg 18-27. 8151A, 81511A.

An Optical Receiver for 550 to 950nm. This versatile front end expands the measurement capabilities of electronic test equipment into the fiber optic domain, by Gerd Koffmane, Michael Fleischer-Reumann, Emmerich Muller, pg 27-29. 81519A, 8151A.

Optical Standards. Precise secondary standards had to be built to test a new line of instruments, by Joachim Vobis, Werner Berkel, pg 29-30. 8151A, 8150A.

Authors January 1985: Achim Eckert, Bernhard Flade, Wolfgang Schmid, Klaus Hoeing, Rainer Eggert, Hans Huning, Volker Eberle, Josef [Jo] Becker, Michael Goder, Bernd Maisenbacher, Wilfried Pless, Werner Berkel, Emmerich Muller, Michael Fleischer-Reumann, Gerd Koffmane, Joachim Vobis, pg 31-32

February 1985 v.36 n.2

Cover: Magnetostatic-wave delay-line filter

HP TechWriter: Illustrated Documents for Engineers. This document editing software package for HP 9000 Series 200 Computers electronically merges text with pictures from many HP graphics software packages. Text and graphics appear on the screen as they will in the printed document, by Roy E. Anderson, Elaine C. Regelson, pg 4-9

HP TechWriter Security, pg 8

Magnetostatic-Wave Devices for Microwave Signal Processing. By locally perturbing the magnetic dipoles formed by spinning electrons in thin ferrimagnetic films, a propagating wave can be initiated. Devices based on this principle can be used to process microwave signals, by Waguih S. Ishak, Kok-Wai Chang, pg 10-20. MSW, YIG.

Magnetic Resonance and YIG-Sphere Devices, pg 12

Spin Waves and Magnetostatic Waves, pg 14

Disc Caching in the System Processing Units of the HP 3000 Family of Computers. Disc caching uses the excess main memory and processor capacity of the high-end HP 3000s to eliminate a large portion of the disc access delays encountered in an uncached system, by Alan J. Kondoff, John R. Busch, pg 21-39

Disc Cache Performance Tools, pg 23-24

The MPE-IV Kernel, pg 25

Authors February 1985: Roy E. Anderson, Elaine C. Regelson, Waguih S. Ishak, Kok-Wai [Bill] Chang, John R. Busch, Alan J. Kondoff, pg 40

March 1985 v.36 n.3

Cover: HP Maintenance Management, a software package for the HP 3000 Computer

HP Maintenance Management: A new Approach to Software Customer Solutions. Suggested by an HP customer and designed with extensive customer feedback, this HP 3000 software helps cut the cost of equipment maintenance, by Joseph L. Malin, Irving Bunton, Jr., pg 4-10

The Need for Plant Maintenance, pg 9

Development of High-Performance, Half-Inch Tape Drive. The design of a low-cost, high-density tape drive for backup of large amounts of on-line computer system memory requires a sophisticated combination of technologies and careful project planning. This new drive’s greatly improved reliability reduces maintenance costs and downtime, by Richard T. Turley, Hoyle L. Curtis, pg 11-16. 7978A.

LSI Simplifies Tape Drive Electronic Design, by Jimmy L. Shafer, pg 13

System Integration, by Richard T. Turley, pg 15

Write and Read Recovery Systems for a Half-Inch Tape Drive. Besides the necessary erasing, reading and writing functions, it is important to protect the data from accidental alteration or destruction, by Wayne T. Gregory, pg 16-18. 7978A.

Digital Formatting and Control Electronics for Half-Inch Tape Data Storage. Encoding and decoding data transparently in either GCR or PE formats require fairly complex operations. LSI circuits simplify some of the design problems, by Jimmy L. Shafer, 19-24. 7978A.

Streaming Tape Drive Hardware Design. Two microprocessors are required – one for master control and the other for servo control, by David J. Van Maren, Robert D. Emmerich, John W. Dong, pg 25-29. 7978A.

Firmware for a Streaming Tape Drive. Support of queued operations keeps the tape streaming and handles all interactions with the user or the host computer, by Alan J. Richards, John A. Ruf, Bradfred W. Culp, Virgil K. Russon, David W. Ruska, pg 29-31. 7978A.

Authors March 1985: Irving [Irv] Bunton, Jr., Joseph [Joe] L. Malin, Hoyle L. Curtis, Richard [Rick] T. Turley, Wayne [Tom] T. Gregory, Jimmy [Jim] L. Shafer, Robert [Diamond Bob] D. Emmerich, John W. Dong, David [Dave] J. Van Maren, David [Dave] W. Ruska, Bradfred [Brad] W. Culp, Virgil K. Russon, John A. Ruf, Alan J. Richards, Sterling J. Mortensen, Donald [Don] A. DiTommaso, John C. Becker, Craig L. Miller, K. Douglas [Doug] Gennetten, Mark E. Wanger, David [Dave] J. Schmeling, Walter [Walt] L. Auyer, Charles [Chuck] H. McConica, Mark L. Gembarowski, pr 31-33

Low-Cost, Highly Reliable Tape Backup for Winchester Disc Drives. Designed for use on small to midrange computer systems, this new quarter-inch cartridge tape drive packs up to 67 megabytes onto a single cartridge, by Donald A. DiTommaso, Sterling J. Mortensen, John C. Becker, pg 34-36. 9144A.

A Design Methodology for Today’s Customers, by Donald A. DiTommaso, pg 36

Tape/Disc Controller Serves Integrated Peripherals. A fixed disc drive or a quarter-inch tape drive or both can operate in a common environment, by Craig L. Miller, Mark L. Gembarowski, pg 37-39. 9144A.

Cartridge Tape Data Integrity Ensured at Five Levels. The drive has read after write, error correction, and media monitoring capabilities, by K. Douglas Gennetten, pg 39-43. 9144A.

Controlling the Head/Tape Interface. It’s critical to data integrity and unit-to-unit interchangeability, by Charles H. McConica, David J. Schmeling, Mark E. Wanger, Walter L. Auyer, pg 44-47. 9144A.

Software Methodology Preserves Consistency and Creativity. Concepts used include hierarchy charts, structured programming, top-down design, structured walkthroughs, and structured analysis, by Mark L. Gembarowski, pg 47-48. 9144A.

April 1985  v.36.n.4

Cover: HP 2392A Display Terminal

A Low-Cost Compact, Block-Mode Computer Terminal. The design emphasizes ergonomics and very high reliability as well as low cost and compactness, by Michele Prieur, Jean-Louis Chapuis, pg 4-7. 2392A.

A Reliable, Low-Cost Keyboard Interface, by Khambao Panyasak, pg 7

Mechanical Design of a Low-Cost Terminal. Integral display tilt and swivel mechanisms and a detached low-profile keyboard help it adapt to users’ needs, by Michel Cauzid, pg 8-9. 2392A.

VLSI Design in the HP 2392A Terminal. The cost of the CRT control function was reduced by 80% by integrating it in a single VLSI chip, by Jean-Jacques Simon, pg 9-16

A Fast Gate Array Companion for CRT Controller, by Freddie Barbut, pg 13-14

How to Scroll Smoothly, by Richard Brabant, pg 15-16

Fully Automated Production of Display Terminal Printed Circuit Assemblies. DIP and axial inserters install 103 components and a six-axis robot inserts 41 more, by Christian-Marcel Dulphy, pg 16-17. 2392A.

A Low-Cost, Reliable Analog Video Display Terminal Design. A small cabinet with no fan made heat dissipation a major concern, by Rene Martinelli, Jean Yves Chatron, pg 18-22. 2392A.

Authors April 1985: Jean-Louis Chapuis, Michele Prieur, Michel Cauzid, Jean-Jacques Simon, Christian-Marcel Dulphy, Jean-Yves Chatron, Rene Martinelli, Martin L. Stone, Todd L. Russell, Peter L. Ma, Jeffrey [Jeff] W. Groenke, Hatem E. Mostafa, Tammy V. Herr, David [Dave] C. Tribolet, Kenneth [Ken] A. Regas, Thomas [Tom] J. Halpenny, pg 23-24

An Intelligent Plotter for High-Throughput, Unattended Operation. This plotter quickly produces multiple copies of high-quality graphics output for use in presentations and reports. Its high throughput and automatic cut-sheet feeder make it useful for unattended operation in shared environments, by Todd L. Russell, Peter L. Ma, Jeffery W. Groenke, Martin L. Stone, pg 25-29. 7550A.

Low-Mass, Low-Cost Pen-Lift Mechanism for High-Speed Plotting. An adaptive pen up/down cycle reduces pen nib wear without sacrificing plotting speed, by Tammy V. Herr, Hatem E. Mostafa, pg 29-30. 7550A.

The HP 7550A X-Y Servo: State-of-the-Art Performance on a Budget. A 32-bit microprocessor closes three servo loops in this plotter using position and velocity feedback, by Kenneth A. Regas, Thomas J. Halpenny, David C. Tribolet, pg 31-34

Firmware Provides Simple and Powerful Plotter Operation. Polygon area fill, downloadable character sets, and replot and vector buffers are some of the key enhancements, by Thomas J. Halpenny, pg 34-36. 7550A.

May 1985 v.36 n.5

Cover: a closeup view of the orifice plate of a HP’s ThinkJet printer

History of Thinkjet Printhead Development. The principle was simple: ejecting a minute droplet of ink by momentarily boiling the ink. Applying it to the design of a commercially viable disposable ink-jet printhead required clever and persistent engineering, by Niels Nielsen, pg 4-10

Mass-Producing Thermal Ink-Jet Printheads, pg 7

Preventing Hydraulic Crosstalk, pg 9

An Inexpensive, Portable Ink-Jet Printer Family. Using a disposable ink cartridge and printhead, this low-cost family of printers offers personal computer users high-quality printing in a portable package. Four common I/O interfaces are supported by various members of the family, by Thomas R. Braun, Cheryl V. Katen, pg 11-20. ThinkJet, 2225.

Alignment of Bidirectional Text, by Dave Lowe, Robert P. Callaway, pg 13

Printhead Interconnect, by Roy T. Buck, pg 14

Custom VLSI Microprocessor System, by Ray L. Pickup, pg 16

Home Switch Design, by Andrew D. Sleeper, pg 18-19

Thermodynamics and Hydrodynamics of the Thermal Ink Jets. Clever modeling and computer simulations were done to understand and predict the behavior of a new printing device, by Ross R. Allen, William R. Knight, John D. Meyer, pg 21-27. ThinkJet.

Development of the Thin-Film Structure for the ThinkJet Printhead. Using microscopic thin-film devices to vaporize ink for ink-jet printing imposes severe electrical, thermal, mechanical and chemical stresses on the film structures, by Eldurkar V. Bhaskar, J. Stephen Aden, pg 27-33

Where the Ink Hits the Paper…, by David Hackleman, pg 32

The ThinkJet Orifice Plate: A Part with Many Functions. This tiny electroformed part conducts ink from the reservoir and channels it to an array of integral minute orifices where it is selectively vaporized to eject ink droplets for printing, by Gary L. Siewell, William R. Boucher, Paul H. McCleland, pg 33-37

Electroforming, pg 35

Viewpoints: Managing the Development of a New Technology. How you do it may determine the commercial viability of a breakthrough technology, by Frank L. Cloutier, pg 38-39

Authors May 1985: Niels J. Nielsen, Thomas [Tom] R. Braun, Cheryl V. Katen, William [Bill] R. Knight, Ross R. Allen, John D. Meyer, Eldurkar V. Bhaskar, J. Stephen [Steve] Aden, Paul H. McClelland, William [Bill] R. Boucher, Gary L. Siewell, Frank L. Cloutier, pg 39-40

June 1985 v.36 n.6

Cover: Dot matrix printbar in action

A New Family of Dot Matrix Line Printers. These impact printers are designed for EDP and manufacturing applications. Speeds available are 300, 600, and 900 lines per minute, by Bryce E. Jeppsen, pg 4-6. 2563A, 2565A, 2566A.

Design for Reliability in the HP 256X Family of Line Printers, by Everett M. Baily, pg 5

Dot Matrix Printbar Design and Manufacturing. A new captured-hammer printbar system meets performance needs from 300 to 900 lines per minute, by John S. Craven, pg 6-9. 256X.

Shuttle System and Packaging of Low-Cost, High-Reliability, 300-lpm Line Printer. Simplicity and reliability were the overriding design requirements, by Jeffrey M. Lantz, Ben B. Tyson, pg 9-12. 2563A.

Mechanical Design of a Family of High-Speed Impact Line Printers. Dot placement accuracy must be maintained with the printbar oscillating at 60 Hz and the paper moving at 900 lpm, by George V. McIlvaine, Daniel D. Wheeler, Peter Gysling, Stephen L. Testardi, pg 13-18. 2365A, 2566A.

Computer Modeling of a Paper Drive Mechanism, by Peter Gysling, pg 15-16

Resonance Search Technique, by Gary W. Green, pg 17

Cost-Effective, Versatile Line Printer Electronics and Firmware. Here’s the nerve center that does the formatting, sequencing, controlling and communicating, by Phillip R. Luque, Donald K. Wadley, Philip Gordon, 18-23. 256X.

Vector Graphics for Dot Matrix Printers, by Sharon E. Jones, Alvin D. Scholten, pg 20

Printer Command Language Provides Feature Set Standard for HP Printers. Now applications written for one HP printer won’t have to be rewritten to run on another, by Ernest F. Covelli, David L. Price, Von L. Hansen, pg 23-25. PCL.

Authors June 1985: Bryce E. Jeppsen, John S. Craven, Ben B. Tyson, Jeffrey [Jeff] M. Lantz, Daniel [Dan] D. Wheeler, Peter [Pete] Gysling, George V. McIlvaine, Stephen [Steve] L. Testardi, Donald [Don] K. Wadley, Philip [Phil] Gordon, Phillip [Phil] R. Luque, David [Dave] L. Price, Ernest [Ernie] F. Covelli, Von L. Hansen, Harry E. Kellogg, Jonathan [Jon] E. Bale, pg 25-26

Native Language Support for Computer Systems. NLS for the HP 3000 and other HP computers provides hardware and operating system facilities that make application programs easy to translate into other languages, by Jonathan E. Bale, Harry E. Kellogg, pg 27-32. Localization.

Native Language Collating Sequences for Europe, pg 30

July 1985 v.36 n.7

Cover: HP 4953A Protocol Analyzer (illustrated map)

A Protocol Analyzer for EDP Centers and Field Service. It’s the latest member of a family that also includes a low-cost portable analyzer for field service and a high-speed BASIC-programmable analyzer for data communications research and development, by Aileen C. Appleyard, Roger W. Ruhnow, William Grant Grovenburg, Wayne M. Angevine, pg 4-11. 4955A, 4951A, 4953A.

How Protocol Analysis Can Help, pg 5

Protocol Analyzer Software Development, by William Grant Grovenburg, pg 10

Simple Architecture Provides High Performance for Protocol Analysis. A 68000 microprocessor controls the system. A trap machine provides powerful triggering capabilities, by Roger W. Ruhnow, Stephen H. Witt, pg 12-18. 4953A.

Protocol Analyzer Power Supply Design, by Stephen M. Ernst, pg 14

Protocol Analyzer Mechanical Design, by Ken Krebs, pg 15

Making a Protocol Analyzer Producible and Serviceable, by John R. Rader, pg 17

Serial Data Acquisition and Simulation for a High-speed Protocol Analyzer. The front end is a dedicated processor that interfaces the line under test to the system processor, by Dorothy J. Yackle, Mark D. Keisling, Elizabeth Gates Moore, David B. Karlin, pg 18-24. 4953A.

A Low-Cost, Portable Field Service Protocol Analyzer. It’s menu and file compatible with HP’s higher-performance analyzers and has many of the same capabilities, by Vonn L. Black, Alan Delwiche, Stephen B. Tursich, Chris L. Odell, pg 24-29. 4951A.

Remote Monitoring and Control of Semiconductor Processing. This addition to HP’s Semiconductor Productivity Network acts as a host computer to IC processing equipment, providing remote control and data gathering for fabrication personnel, by Wesley H. Higaki, pg 30-34. SPN.

SECS, pg 33. SEMI Equipment Communications Standard.

Authors July 1985: William Grant Grovenburg, Aileen C. Appleyard, Wayne M. Angevine, Roger W. Ruhnow, Stephen [Steve] H. Witt, Elizabeth [Beth] Gates Moore, David [Dave] B. Karlin, Mark D. Keisling, Dorothy [Dotty] J. Yackle, Alan Delwiche, Vonn L. Black, Chris L. Odell, Stephen [Steve] B. Tursich, Wesley [Wes] H. Higaki, pg 35-36

August 1985 v. 36 n.8

Cover: Spectrum of HP’s next generation of computers ranging from desktop workstations to mainframe class machines

Beyond RISC: High-Precision Architecture. An introduction to scaling, complexity and HP’s new computer architecture, by William S. Worley, Jr., Joel S. Birnbaum, pg 4-9. Spectrum program.

Architecture Genealogy, pg 5

Authors August 1985: William [Bill] S. Worley, Jr., Joel S. Birnbaum, Michael [Mike] B. Aken, William [bill] M. Spaulding, David [Dave] A. Bartle, Katherine [Katie] F. Potter, Reed I. White, pg 10

Development of a Two-Channel Frequency Synthesizer. Combining two independent synthesizers, flexible modulation, and control circuits in a single package, this instrument can generate two-phase, two-tone, pulse, frequency hopping, and swept signals, by Michael B. Aken, William M. Spaulding, pg 11-18. 3326A.

Discrete Sweep, by Michael B. Aken, pg 15

Two-Channel Synthesizer Phase Calibration, by Michael B. Aken, pg 17

Applications of a Two-Channel Synthesizer. Multiphase test capability, a frequency agile discrete sweep and other features add up to exceptional versatility, by Michael B. Aken, pg 19-21. 3326A.

Measuring Intermodulation Distortion with a Two-Channel Synthesizer, by Ben Zarlingo, pg 20

Synthesizer Firmware for User Interface and Instrument Control. A friendly and reliable user interface was the primary objective, by Katherine F. Potter, David A. Bartle, pg 21-24. 3326A.

A High-Level Active Mixer. When noise considerations are properly addressed, active designs have some distinct advantages, by William M. Spaulding, pg 25-29. 3326A.

Automated Test Data Collection for IC Manufacturing. Collecting, storing and analyzing data from a variety of test equipment and CPUs that use different formats, languages, and protocols is made possible by this software product for HP’s Semiconductor Productivity Network, by Reed I. White, pg 30-36. SPN.

EA-10 Data Analysis System, pg 32

September 1985 v.36 n.9

Cover: HP 3000 Series 37 Computer

VLSI Delivers Low-Cost, Compact HP 3000 Computer System. This entry-level, user-installable computer system runs the same software as the largest HP 3000, but fits under a table and is much quieter than a typewriter, by Frank E. La Fetra, Jr., James H. Holl, pg 4-7. Series 37.

High-Volume Test Strategy, by Dennis Bowers, pg 6

Simplicity in a Microcoded Computer Architecture. Simplicity means more efficient use of silicon without sacrificing performance, by Frederic C. Amerson, pg 7-12. HP 3000 Series 37

Using a Translator for Creating Readable Microcode, by Skip La Fetra, pg 10

Booting 64-Bit WCS Words from a 32-Bit-Wide ROM Word, by Skip La Fetra, Chris Shaker, pg 12

Simulation Ensures Working First-Pass VLSI Computer System. A simulator with the improbably name “Faster Than Light” was the essential tool, by John R. Obermeyer, Malcolm E. Woodward, Paul L. Rogers, Patria G. Alvarez, Greg L. Gilliam, pg 13-16. HP 3000 Series 37.

Creative Ways to Obtain Computer System Debug Tools. The ways include an off-the-shelf microcomputer and a virtual software debugging panel, by William M. Parrish, Eric B. Decker, Edwin G. Wong, pg 17-22. HP 3000 Series 37.

The Role of a Programmable Breakpoint Board, by Mehraban Jam, pg 20

Virtual Microcode Memory, by Chris Shaker, pg 22

New Cardiograph Family with ECG Analysis Capability. These three new HP cardiographs, in addition to recording traditional ECG waveforms, can perform differing levels of measurements and analysis to aid diagnosis of heart behavior, by Peter H. Dorward, Steven A. Scampini, Robert H. Banta, Jr., pg 23-28. 4760.

ECG Storage and Transmission, by Charles C. Monroe, pg 24

Artifact Indication, pg 27

Computer-Aided ECG Analysis. Special signal processing and algorithms are required to detect various ECG abnormalities, by John C. Doue, Anthony G. Vallance, pg 29-34

ECG Criteria Language, pg 30-31

Pediatric Criteria, pg 34

Authors September 1985: Frank [Skip] E. La Fetra, Jr., James [Jim] H. Holl, Frederic [Rick] C. Amerson, Paul L. Rogers, Malcom [Woody] E. Woodward, Patria [Pat] G. Alvarez, John R. Obermeyer, Greg L. Gilliom, Edwin [Ed] G. Wong, William [Bill] M. Parrish, Eric B. Decker, Peter H. Dorward, Steven [Steve] A. Scampini, Robert [Bob] H. Banta, Jr., Anthony [Tony] G. Vallance, John C. Doue, pg 35-36

October 1985 v.36 n.9

Cover: Integral PC’s electroluminescent display

A Multitasking Personal Computer System for the Technical Professional. The Integral PC provides high-performance multitasking operation, mass storage, graphics and text output, and instrument I/O in a compact, transportable package, by Nelson A. Mills, Tim J. Williams, pg 4-6

Electronics System for a Transportable Computer. A clever memory manager and simple, low-cost system logic design are key elements, by David L. Kepler, James A. Espeland, pg 6-9. Integral PC.

Custom Graphics Processor Unit for the Integral PC. This special-purpose microprocessor can control the internal bit-mapped flat-panel display or external CRT monitors, by Dean M. Heath, pg 10-12

High-Quality Electroluminescent Display for a Personal Workstation. An energy-recovery drive scheme keeps power requirements below 15 watts, by Marvin L. Higgins, pg 12-17. Integral PC.

Mechanical Design of the Integral PC: Not Just Desktop Computer with a Handle. Able to fit under an airline seat, the package contains an ink-jet printer, a disc drive, a detachable keyboard, and space for an optional mouse, by Thomas A. Pearo, pg 18-22

Reducing Glare with Circular Polarizers, pg 21

A UNIX Operating System Adapted for a Technical Personal Computer. This approach eliminates the need for a hard disc and adds real-time priority to a multitasking operating system, by Ray M. Fajardo, Robert C. Cline, James R. Andreas, Andrew L Rood, pg 22-28. Integral PC.

A Friendly UNIX Operating System User Interface. A window manager and an adaptation of the Personal Applications Manager used in the HP 150 Computer make it simpler for the novice to use a UNIX multitasking system, by Jon A. Brewster, Karen S. Helt, James N. Phillips, 28-33. Integral PC.

Personal Applications Manager, by Brock Krizan, pg 30

Data Communications, by Fred Taft, pg 33-34

Printer and Plotter Drivers, pg 34-35

Authors October 1985: Nelson A. Mills, Tim J. Williams, James [Jim] A. Espeland, David [Dave] L. Kepler, Dean M. Heath, Marvin [Marv] L. Higgins, Thomas [Tom] A. Pearo,  James [Jim] R. Andreas, Andrew [Andy] L. Rood, Robert [Bob] C. Cline, Ray M. Fajardo, Karen S. Helt, James [Jay] N. Phillips, Jon A. Brewster, pg 35-36

November 1985 v.36 n.11

Cover: A Thin-film disc fabricated in the HP Laboratories

Thin-Film Memory Disc Development. Developing a new recording medium for disc memories required careful attention to the development and characterization of materials, processes and test systems, by Bruce F. Spenner, Charles C. Morehouse, David J. Bromley, Edward S. Murdock, Richard A. Baugh, James E. Opfer, Bangalore R. Natarajan, pg 4-10

M-H Loop Measurements, by Robin P. Giffard, Victor W. Hesterman, pg 6

A Laser Particle Scanner, by Richard E. Elder, pg 8

Dynamic Testing of Thin-Film Magnetic Recording Discs. A modular approach is a key element, by John Hodges, Keith S. Roskelley, Dennis R. Edson, pg 11-21

In-Line Sputtering Deposition System for Thin-Film Disc Fabrication. A sophisticated control system and physical design moves the discs from one deposition step to the next without exposing the discs to atmospheric conditions between steps, by George A. Drennan, Michael B. Jacobson, Robert J. Lawton, pg 21-25

Thin-Film Disc Reliability-the Conservative Approach. Wear, friction, and corrosion must be evaluated and controlled, by Stephan P. Howe, Paul Poorman, Clifford K. Day, C. Girvin Harkins, pg 25-31

Authors November 1985: David [Dave] J. Bromley, Charles [Chuck] C. Morehouse, Richard [Dick] Baugh, Edward [Ed] S. Murdock, James [Jim] E. Opfer, Bruce F. Spenner, Bangalore [Natu] R. Natarajan, John Hodges, Dennis R. Edson, Keith S. Roskelley, Robert [R. J. (Bob)] Lawton, Michael [Mike] B. Jacobson, George A. Drennan, C. Girvin Harkins, Stephan P. Howe, Clifford [Cliff] K. Day, Paul Poorman, Darrel R. Bloomquist, Richard [Rick] S. Seymour, Glenn E. Moore, Jr., Michael [Mike] C. Allyn, Peter R. Goglia, Scott R. Smay, pg 31-33

Manufacturing Thin-Film Discs. Optimizing disc fabrication has a major effect on disc drive product cost and quality, by Darrel R. Bloomquist, Glenn E. Moore, Jr., Richard S. Seymour, pg 34-35

Thin-Film Discs: Magnetic, Electrical, and Mechanical Design. When the magnetic and electrical parameters require a head to fly only 200 nm above a disc, surface smoothness becomes an important design parameter, by Michael C. Allyn, Peter R. Goglia, Scott R. Smay, pg 36-40

December 1985 v.36 n.12

Cover: SAWR and the HP 8642A/B

A High-Performance Signal Generator for RF Communications Testing. High-reliability design, extended calibration intervals, and fast calibration and repair maximize ATE system uptime. Spectral purity is exceptional, by Robert E. Burns, pg 4-6. 8642A, 8642B.

User Interface and Internal Controller for an RF Signal Generator. The power of a 68000 microprocessor makes the instrument friendly, both to the user and to automatic systems it may be part of, by Albert Einstein Lassiter, Charles R. Kogler, pg 6-9. 8642A/B.

Display Design, pg 9

Signal Generator Service Features Maximize Uptime. Built-in are self-tests and service features for fault location and field recalibration, by Michael T. Wende, pg 10-13. 8642A/B.

Electrically Erasabel PROM Storage for Calibration Data, pg 13

Internally Modular Signal Generator Mechanical Design. Each module is like a mini-instrument that is easily replaceable in the field, by Michael B. Jewell, Mark W. Johnson, pg 14-18. 8642A/B.

Wide-Frequency-Range Signal Generator Output Section Design. Output power amplification and control, amplitude modulation, and reverse power protection are handled here, by Marvin W. Wagner, Robert R. Collison, James B. Summers, Bryan D. Ratliff, pg 18-24. 8642A/B.

Signal Generator Frequency Synthesizer Design. Six phase-locked loops minimize phase noise and spurious outputs and provide high-accuracy, low distortion angle modulation, by Thomas R. Faulkner, Earl C. Herleikson, Ronald J. Mayer, Brian M. Miller, Mark A. Niemann, pg 24-31. 8642A/B.

Computer Analysis of Oscillator Loop Gain, Phase, and Q, pg 29

Audio Modulation Section for an RF Signal Generator. Included is a low-distortion, variable-modulation audio signal source, by Gary L. Tong, pg 31-35 . 8642A/B.

Index: Volume 36 January 1985 through December 1985. PART 1: Chronological Index, pg 36-37. PART 2: Subject Index, pg 38-40. PART 3: Model Number Index, pg 40. PART 4: Author Index, pg 41-42

Authors December 1985: Robert [Bob] E. Burns, Albert Einstein Lassiter, Charles [Chuck] R. Kogler, Michael [Mike] T. Wende, Mark W. Johnson, Michael [Mike] B. Jewell, Bryan D. Ratliff, Marvin [Marv] W. Wagner, Robert [Bob] R. Collison, James [Jim] B. Summers, Earl c. Herleikson, Ronald [Ron] J. Mayer, Brian M. Miller, Mark A. Niemann, Thomas [Tom] R. Faulkner, Gary L. Tong, pg 43-44

January 1984 v.35 n.1

Cover: The Industry’s largest removable disc drive media module

Two High-Capacity Disc Drives. One of these 404-megabyte drives is the current industry leader in removable disc pack capacity. The other is a lower-cost nonremovable drive, by Kent Wilken, pg 3-6. 7933, 7935.

A Command Language for Improved Disc Protocol. The goal is a flexible and forward-looking way of communicating between disc and computer, by Douglas L. Voigt, pg 5-6. CS-80

Second-Generation Disc Read/Write Electronics. Information-packing coding and increased track densities deliver disc storage at one third the cost per megabyte, by Robert M. Batey, James D. Becker, pg 7-12. 7933, 7935.

Disc Drive Error Detection and Correction Using VLSI. Error correction resides entirely within the disc drive for better system performance, by Peter M. Galen, pg 12-13

Head Positioning in a Large Disc Drive. The objective was to move 14 heads up to 2.1 inches in less than 35 milliseconds and keep them within 75 microinches of the correct position, by R. Frank Bell, Eric W. Johnson, R. Keith Whitaker, Roger V. Wilcox, pg 14-20. 7933/35.

Mechanical Design of a Large Disc Drive. A molded cabinet, modularity, and high-volume parts tooling reduce manufacturing time and cost, by James H. Smith, pg 20-22. 7933/35.

High-Capacity Disc Drive Servomechanism Design. Complicated servo performance issues were better resolved by separating them from structural constraints, by Stephen A. Edwards, pg 23-27. 7933/35.

Authors January 1984: Kent Wilken, Douglas [Doug] L. Voigt, James D. Becker, Robert [Bob] M. Batey, Peter M. Galen, Roger V. Wilcox, Eric W. Johnson, R. Frank Bell, R. Keith Whitaker, James [Jim] H. Smith, Stephen [Steve] A. Edwards, Timothy [Tim] C. Mackey, Loren M. Koehler, Jeffrey [Jeff] R. Murphy, Elizabeth [Beth] R. Hueftle, pg 27-28

Speech Output for HP Series 80 Personal Computers. This module allows a computer to provide informative prompts and alarms, freeing the user from frequent attention to a display, by Loren M. Koehler, Timothy C. Mackey, pg 29-36. 82967A.

Linear Predictive Coding, pg 32-33

Speech Output for HP 1000 and HP 3000 Computer Systems. Inserted in series with any RS-232-C peripheral, this module supplies audible information for many applications, by Elizabeth R. Hueftle, Jeffrey R. Murphy, pg 34-35. 27201A.

February 1984 v. 35 n.2

Cover: The five boards of the A900 processor

A New Series of High-Performance Real-Time Computers. The HP 1000 A-Series consists of three compatible processors rated at up to 3 MIPS. They use a new Real-Time Executive operating system and are available in board, box, and system configurations, by Marlu E. Allan, Nancy Schoendorf, Craig B. Chatterton, Don M. Cross, pg 3-6. 1000 A-Series, A600, A700, A900.

An Adaptable 1-MIPS Real-Time Computer. The A700 offers user microprogramming, optional hardware floating-point, and optional error correcting memory, by David A. Fotland, Lee S. Moncton, Leslie E. Neft, pg 7-12

Designing a Low-Cost 3-MIPS Computer. It’s done with pipelining, cache memory, and hardware floating-point but not ECL, by Donald A. Williamson, Steven C. Steps, Bruce A. Thompson, pg 12-17. A900.

Floating-Point Chip Set Speeds Real-Time Computer Operation. The add and multiply chips are fully combinational and produce a 64-bit result in 400 to 900 nonseconds, by William H. McAllister, John R. Carlson, pg 17-23. A900, A700.

Comprehensive, Friendly Diagnostics Aid A-Series Troubleshooting. An interpretive diagnostic design language makes it easy to generate diagnostics to fit the applications, by Michael T. Winters, John F. Shelton, pg 23-26. 1000 A-Series.

New Real-Time Executive Supports Large Programs and Multiple Users. Virtual code, code and data separation, and spooling are other features, by Douglass O. Hartman, Steven R. Kusmer, Elizabeth A. Clark, Douglas V. Larson, Billy Chu, pg 26-31. RTE-A. 1000 A-Series.

New Software Increases Capabilities of Logic Timing Analyzer. An upgraded operating software package increases the capabilities of an already powerful timing analyzer system to include statistics, marked events, postprocessing, and storage of captured trace data, by David L. Neuder, pg 32-38. 64600S.

Captured Data Storage and Retrieval, pg 36

Overlay Memory Structure, pg 28

Authors February 1984: Don M. Cross, Craig B. Chatterton, Marlu E. Allan, Nancy Schoendorf, David [Dave] A. Fotland, Leslie E. Neft, Lee S. Moncton, Donald [Don] A. Williamson, Bruce A. Thompson, Steven [Steve] C. Steps, John R. Carlson, William [Willy] H. McAllister, Michael [Mike] T. Winters, John F. Shelton, Steven [Steve] R. Kusmer, Douglas [Doug] O. Hartman, Douglas [Doug] V. Larson, Billy [Bill] Chu, Elizabeth [Beth] A. Clark, David [Dave] L. Neuder, pg 39-40

March 1984 v.34 n.3

Cover: The solar system representing the system software for the HP 9000 Series 500 Computers

A New 32-Bit VLSI Computer Family: Part II – Software. Based on HP’s proprietary 32-bit VLSI NMOS-III technology, the HP 9000 Series 500 Computers use local area networking and HP-UX, HP’s enhanced version of UNIXä. An advanced version of BASIC that uses run-time compiling is available on the Model 520 integrated workstation, by Michael V. Hetrick, Michael L. Kolesar, pg 3-6

Contrasting Project Management, by Michael V. Hetrick, Michael L. Kolesar, pg 4

The Development of a BASIC Language Subsystem, by Michael L. Kolesar, Jack D. Cooley, pg 5-6

HP-UX: Implementation of UNIX on the HP 9000 Series 500 Computer Systems. This enhanced version of UNIX lets a user “port” software from one HP 9000 Computer to another and use software developed on other systems, by Scott W. Y. Wang, Jeff B. Lindberg, pg 7-15

Typical HP-UX Commands, by Michael L. Connor, pg 7

What is UNIXä?, by Michael L. Connor, pg 9

HP-UX: A Corporate Strategy, by Michael V. Hetrick, pg 12-13

An Interactive Run-Time Complier for Enhanced BASIC Language Performance. This technique adds compiled language performance while retaining BASIC’s friendly interactive features, by David M. Landers, Timothy W. Tillson, Jack D. Cooley, Richard R. Rupp, pg 15-21. 9000 Model 520.

Preserving Programming Investment, by Gerrie L. Shults, pg 20-21

A Local Area Network for the HP 9000 Series 500 Computers. LAN 9000 allows clustering of HP’s latest computer workstations for computer-aided design and sharing of data and resources, by John J. Blaza, H. Michael Wenzel, James L. Willits, pg 22-27. Manufacturer’s Productivity Network, MPN.

Data Communications for a 32-Bit Computer Workstation. By emulating asynchronous terminals, the Model 520 can exchange data with other systems, by Vincent C. Jones, pg 24-25

A General-Purpose Operating System Kernel for a 32-Bit Computer System. This kernel provides a clean interface between an underlying sophisticated hardware system and high-level user systems, by Dennis D. Georg, Benjamin D. Osecky, Stephan D. Scheid, pg 28-34. 9000 Series 500.

Parallel Development of Hardware and Software, by Benjamin D. Osecky, Dennis D. Georg, pg 30

A System Software Debugger, by Alan Silverstein, pg 32-33

The Design of a General-Purpose Multiple-Processor System. To coordinate the operation of symmetric processors requires some special hardware characteristics and hardware/software tradeoffs, by Benjamin D. Osecky, Dennis D. Georg, Robert J. Bury, pg 34-38. 9000 Series 500.

An I/O Subsystem for a 32-Bit Computer Operating System. This subsystem for Series 500 Computers has two main components – a file system and a set of device drivers, by Robert M. Lenk, Charles E. Mear, Jr., Marcel E. Meier, pg 38-41

Authors March 1984: Michael [Mike] L. Kolesar, Michael [Mike] V. Hetrick, Jeff B. Lindberg, Scott W. Y. Wang, Timothy [Tim] W. Tillson, Richard [Dick] R. Rupp, Jack D. Cooley, David [Dave] M. Landers, John J. Balza, James [Jim] L. Willits, H. Michael [Mike] Wenzel, Vincent [Vince] C. Jones, Stephen [Steve] D. Scheid, Dennis [Denny] D. Georg, Benjamin [Dan] D. Osecky, Robert [Bob] J. Bury, Charles [Charlie] E. Mear, Jr., Marcel E. Meier, Robert [Bob] M. Lenk, Donald [Don] L. Hammond, pg 42-43

Viewpoints: Coping with Prior Invention. What do you do when you find out that someone else invented your new technology first?, by Donald L. Hammond, pg 44. ThinkJet, HP 2225.

April 1984 v.35 n.4

Cover: A metering pump from the solvent delivery system

Low-Dispersion Liquid Chromatography. Low dispersion means it takes less sample, less solvent and less time; it’s a term coined by HP and implemented in a new high-performance LC system, by Robert J. Jonker, Gerard P. Rozing, pg 3-8

Identification and Quantitation of PTH Amino Acids. The HP 1090 represents a major step forward in the analysis of these compounds, by Bernd Glatz, Rainer Schuster, pg 7-8

Design of the HP 1090 Control System. It’s a hierarchical structure with an HP personal computer in command, by Herbert Wiederoder, Roland Martin, Juergen Ziegler, pg 8-13

A New Solvent Delivery System. Precision pumps and an advanced control system deliver accurate flow rates over a 5000:1 range, by Wolfgang Geiger, Heinrich Vollmer, pg 13-21. 79835A, Liquid Chromatography.

Automatic Liquid Chromatograph Injection and Sampling. Precise handling and injection provide high throughput and reduce costs, by Wolfgang Kretz, Hans-Georg Hartl, pg 21-24. 79846A.

Mobile Phase Preheater Ensures Precise Control of LC Column Temperature. Column temperature has become an important separation parameter, by Helge Schrenker, pg 24-26. 1090, Liquid Chromatography.

A Low-Cost LC Filterphotometric Detection System. It offers more flexibility and better delectability and selectivity then others in its class, by Axel Wiese, Bernhard Dehmer, Thomas Dorr, Gunter Hoschele, pg 26-30. Liquid Chromatography, 78991A.

A High-Speed Spectrophotometric LC Detector. It’s designed for high-speed data acquisition and for qualitative and quantitative analyses using the latest columns, by Joachim Leyrer, Gunter E. Nill, Detlev Hadbawnik, Gunter Hoschele, Joachim Dieckmann, pg 31-41. HPLC, Liquid Chromatography, 1040A.

Speed Requirements for Data Acquisition in Photodiode Array HPLC Detectors, pg 38-39

Authors April 1984: Robert J. Jonker, Gerard P. Rozing, Bernd Glatz, Rainer [Moses] Schuster, Roland Martin, Juergen Ziegler, Herbert Wiederoder, Wolfgang Geiger, Heinrich Vollmer, Hans-Georg Hartl, Wolfgang Kretz, Helge Schrenker, Axel Wiese, Bernhard Dehmer, Thomas Dorr, Gunter Hoschele, Joachim Leyrer, Joachim Dieckmann, Detlev Hadbawnik, Gunter E. Nill, Alfred Maute, pg 42-43

New Technologies in the HP 1090 Liquid Chromatograph. Some of the new technologies aren’t so new, by Alfred Maute, pg 44

May 1984 v.35 n.5

Cover: Finite Element Analysis [nut, bolt & wrench]

Putting a 32-Bit Computer System in a Desktop Workstation. A modular packaging approach provides a powerful computer workstation for computer-aided design and engineering applications, by Jack L. Burkman, Robert L. Brooks, Ronald P. Dean, Paul F. Febvre, Michael K. Bowen, pg 3-11. 9000 Series Model 520.

Low-Tech Modeling for Better Design, by Steven R. Anderson, pg 6-7

The Toleranced Design of the Model 520 Computer, by Joseph R. Milner, pg 10-11

Color Graphics Display for an Engineering Workstation. This display has performance appropriate for HP’s latest desktop computer, yet retains compatibility with graphics software developed on earlier computers, by Daniel G. Schmidt, pg 12-15. 98760A.

Detached Keyboard Option for the Model 520 Computer, by Michael K. Bowen, pg 13-14

BASIC Language Graphics Subsystem for a 32-Bit Workstation. Multiple device access, 3-D primitives, and input device tracking are some of the features, by Kenneth W. Lewis, Alan D. Ward, Xuan Bui, pg 16-19. 9000 Model 520.

Multiprogramming in Model 520 BASIC, by Robert J. Bury, pg 20-21

I/O Features of Model 520 BASIC. A transfer process for overlapped I/O and a unified I/0 resource concept improve performance and simplify programming, by Gary D. Fritz, Michael L. Kolesar, pg 21-24

BASIC Language I/O Examples, pg 22

Circular buffer Operation, pg 23

A Compact, Reliable Power Supply for an Advanced Desktop Computer. This module can deliver 550W among 12 outputs and occupies a volume less than 400 cubic inches, by Jack L. Burkman, Howell R. Felsenthal, Thomas O. Meyer, Warren C. Pratt, pg 24-31. 9000 Model 520.

An Automatic Power Supply Test Station, by Thomas O. Meyer, pg 28

Compact 32-Bit System Processing Units. Two package designs, 32-bit multiprocessor architecture and a sophisticated self-test system provide multiuser computer systems with a rugged, powerful, easy-to-service mainframe processing unit, by Kevin W. Allen, Paul C. Christofanelli, Robert E. Kuseski, Ronald D. Larson, David Maitland, Larry J. Thayer, pg 31-38. 9000 Series 500.

Authors May 1984: Paul F. Febvre, Ronald [Ron] P. Dean, Robert [Bob] L. Brooks, Jack L. Burkman, Michael [Mike] K. Bowen, Daniel [Dan] G. Schmidt, Xuan Bui, Alan D. Ward, Kenneth [Ken] W. Lewis, Gary D. Fritz, Michael [Mike] L. Kolesar, Thomas [Tom] O. Meyer, Howell R. Felsenthal, Warren C. Pratt, Robert [Bob] E. Kuseski, David [Dave] Maitland, Larry J. Thayer, Ronald [Ron] D. Larson, Kevin W. Allen, Paul C. Christofanelli, pg 38-40

June 1984 v.35 n.6

Cover: A typical IC wafer and the processed results of some measurements

A Parametric Test System for Accurate Measurement of Wafer-Stage ICs. Special test instruction software and a hardware system fully characterized up to the measurement pins of the test head make this system easy to use for accurate parametric evaluations, by Yoh Narimatsu, Keiki Kanafuji, pg 3-8. 4062A.

Some Examples of 4062A Applications, pg 5

Powerful Test System Software Provides Extensive Parametric Measurement Capability. An easy-to-use set of test instructions, “dry” switching of test relays, and a utility for specifying wafer probing patterns provide powerful support for users of HP’s semiconductor test system, by Takuo Banno, pg 9-11. 4062A.

A High-Speed 1-MHz Capacitance/Conductance Meter for Measuring Semiconductor Parameters. This fast, high-resolution instrument is equipped with a built-in timer, a sweepable dc bias source, and a pulse generator for high-speed C-t and C-V measurements, by Tomoyuki Akiyama, Kenzo Ishiguro, pg 12-24. 4280A.

Authors June 1984: Yoh Narimatsu, Keiki Kanafuji, Takuo Banno, Tomoyuki Akiyama, Kenzo Ishiguro, Joseph [Joe] A. Hawk, Andrew [Andy] J. Blasciak, Gail E. Hamilton, Brett K. Carver, Thomas [Tom] K. Bohley, Donald [Don] J. Smith, Johnnie L. Hancock, pg 24-25

An Electronic Tool for Analyzing Software Performance. Improving software performance requires measurement of program activity and duration under different conditions. This subsystem for the HP 64000 Logic Development System makes it easy to obtain such data, by Gail E. Hamilton, Andrew J. Blasciak, Joseph A. Hawk, Brett K. Carver, pg 26-32. 64310A.

Counter Module Simplifies Measurements on Complex Waveforms. This gated universal counter module provides counter accuracy to complement the HP 1980A/B Oscilloscope Measurement System’s flexible setup and display capabilities, by Donald J. Smith, Johnnie L. Hancock, Thomas K. Bohley, pg 33-40. 1965A.

How Computer Control of the Oscilloscope Measurement System Makes Complex Measurements Easy, by Johnnie Hancock, pg 36

Random Phase Modulation Breaks Coherence for High-Resolution Averaging, by Johnnie Hancock, pg 39-40

July 1984 v.35 n.7

Cover: The parts of the HP-71B Handheld Computer

A New Handheld Computer for Technical Professionals. This small computational tool functions both as a BASIC-programmable computer and as an advanced scientific calculator. Equipped with the appropriate modules, it can control instruments, store and retrieve data and programs, perform complex number and matrix calculations, or be used for software development, by Susan L. Wechsler, pg 3-10. HP-71B.

Calculator Mode for a Handheld Computer, by Stephen Abell, pg 6-7

HP-IL Interface Module for the HP-71B Computer, by Nathan Zelle, Jackie Hunt, pg 8-9

Soft Configuration Enhances Flexibility of Handheld Computer Memory. This technique allows the CPU to reassign a device’s address space and lets the user dedicate portions of RAM for independent use,  by Nathan Meyers, pg 10-13. HP-71B.

Custom CMOS Architecture for a Handheld Computer. A 4-bit CPU provides a 512K-byte address space and uses a 64-bit internal word size, by James P. Dickie, pg 14-17. HP-71B.

Packaging the HP-71B Handheld Computer. An innovative combination of standard-manufacturing techniques allows a very compact design, by Thomas B. Lindberg, pg 17-20

Authors July 1984: Susan L. Wechsler, Nathan Meyers, James [Jim] P. Dickie, Thomas [Tom] B. Lindberg, Stanley [Stan] M. Blascow, Jr., James [Jim] A. Donnelly, Laurence W. Grodd, Charles M. Patton, Robert [Bob] M. Miller, pg 21

Module Adds Curve-Fitting and Optimization Capabilities to the HP-71B. This plug-in ROM can fit data to a variety of built-in functions, or, given a function of up to 20 variables, find values for local minima or maxima, by Stanley M. Blascow, Jr., James A. Donnelly, pg 22-24

An Optimization Example, pg 23

ROM Extends Numerical Function Set of Handheld Computer. Full use of complex variables, integration, matrix algebra, and polynomial root finding are some of the capabilities provided by this plug-in module, by Laurence W. Grodd, Charles M. Patton, pg 25-36. HP-71B.

See Also: Correction: The complex results for the complicated expression on page 26 in the article “ROM Extends Numerical Function Set of Handheld Computer, is incorrect, page 36 in the October 1984 issue

Plug-In Module Adds FORTH Language and Assembler to a Handheld Computer. This ROM adds an alternate programming language and the ability to define new BASIC keywords or FORTH primitives, by Robert M. Miller, pg 37-40. HP-71B.

August 1984 v.35 n.8

Cover: Diana Jillie using the HP 150 Touchscreen Personal Computer

Touchscreen Personal Computer Offers Ease of Use and Flexibility. This powerful 16-bit computer offers an industry standard operating system, many integrated software packages, high-resolution graphics, sophisticated data communications, built-in terminal capabilities, and of course – the touchscreen, by Srinivas Sukumar, pg 4-6. HP 150.

Operating System and Firmware of the HP 150 Personal Computer. The industry standard MS-DOS operating system makes available a large amount of software, by Laurie E. Pollero Wood, Charles H. Whelan, pg 6-10

The HP 150 Touchscreen: An Interactive User Input Device for a Personal Computer. It has adequate resolution, doesn’t degrade the display and is reliable, by Peter R. Straton, Scott R. McClelland, Thomas E. Kilbourn, pg 11-15

Applications Software for the Touchscreen Personal Computer. HP-developed text editing, card file, graphics, spreadsheet, and calculator packages are designed to maximize the benefits of the touchscreen, by Peter S. Showman, Karl W. Pettis, Karlie J. Arkin, Jeffrey A. Spoelstra, John Price, W. Bruce Culbertson, Robert D. Shurtleff, Jr., pg 15-24. HP 150, Personal Applications Manager, PAM.

Hardware Design of the HP 150 Personal Computer. It’s really two products – a computer and a terminal, by John E. Watkins, Patricia A. Brown, George Szeman, Susan E. Carrie, pg 25-30

Software Graphics in the HP 150, pg 28

Personal Computer Printer is User Installable. You just drop it into the top of the HP 150, by Joseph D. Barbera, pg 30-31. 2674A.

Authors August 1984: Srinivas Sukumar, Laurie E. Pollero Wood, Charles [Chuck] H. Whelan, Peter R. Straton, Thomas [Tom] E. Kilbourn, Scott R. C. McClelland, Peter [Pete] S. Showman, Karl W. Pettis, Karlie J. Arkin, John Price, W. Bruce Culbertson, Robert [Rob] D. Shurtleff, Jr., Jeffrey [Jeff] A. Spoelstra, George Szeman, Susan E. Carrie, John E. Watkins, Patricia [Trish] A. Brown, Joseph [Joe] D. Barbera, Michael [Mike] R. Perkins, Lorenzo Dunn, pg 32-33

A Standard Keyboard Family for HP Computer Products. It’s designed to meet ergonomic requirements, satisfy user preferences, be easily customized, and be produced in high volume at low cost, by Lorenzo Dunn, Michael R. Perkins, pg 34-36. 46010., HP 150.

September 1984 v.35 n.9

Cover: The flags of many nations

Transmission Impairment Measuring Set Simplifies Testing of Complex Voice and Data Circuits. This new TIMS’ comprehensive measurement capabilities and powerful master/slave mode offer Bell-standard telephone companies and data communications users faster, more reliable testing and troubleshooting, by David R. Novotny, Jeffrey Tomberlin, Charles P. Hill, James P. Quan, Gordon A. Jensen, Jerry D. Morris, pg 4-12. 4945A.

TIMS Mechanical Design, by Ernie Hastings, pg 10

Weight, Size, and Noise Impact Power Supply and Display Design, by Kurt R. Goldsmith, pg 12

Master/Slave TIMS Operation Increases Productivity. One skilled craftsperson and two TIMS can do the job, by Teresa L. Reh, pg 13-15. 4945A.

How Master/Slave Mode Works, pg 14

Testing the TIMS. Innovative approaches ensure correct performance and reliability of hardware and software, by Allan W. Dodge, Scott S. Neal, Kurt R. Goldsmith, pg 15-18. 4945A.

Semiconductor Research Corporation: A Perspective on Cooperative Research. Hewlett-Packard and other U.S. makers and users of semiconductor devices join forces to support universities in an innovative microelectronics research program, by Richard A. Lucic, pg 19-25

A Hyphenation Algorithm for HPWord. Originally developed for the Dutch version of HPWord, this pattern recognition algorithm can be adapted to hyphenate words in many different languages, by Paul R. Smit, pg 26-30

Designing Software for the International Market. A designer has to allow for differences in spelling, syntax, character sets, times, data formats, terminal capabilities, and many other factors, by Heather Wilson, Michael J. Shaw, pg 31-35. Localization.

Authors September 1984: David R. Novotny, James [Jim] P. Quan, Jerry D. Morris, Jeffrey [Jeff] Tomberlin, Gordon A. Jensen, Charles [Chuck] P. Hill, Teresa L. Reh, Scott S. Neal, Allan [Al] W. Dodge, Kurt R. Goldsmith, Richard [Rich] A. Lucic, Paul R. Smit, Heather Wilson, Michael [Mike] J. Shaw, pg 35-36

October 1984 v.35 n.10

Cover: HP 3065 Board Test System

The HP 3065 Board Test Family: A System Overview. This board test system features menu-driven automatic test generation, high digital IC throughput, overdrive protection, multiple test stations, and networking capability, by Thomas R. Fay, John E. McDermid, pg 4-9

Hp Q-STAR, pg 6

Confirmation-Diagnostics, by Randy W. Holmberg, pg 9

Authors October 1984: Thomas [Tom] R. Fay, Robert [Bob] E. Balliew, Michael [Mike] A. Teska, Mathew [Matt] L. Snook, Vance R. Harwood, Randy W. Holmberg, Mark A. Mathieu, T. Michael [Mike] Hendricks, John E. McDermid, pg 10

Automatic Test Program Generation for Digital Board Testing. The user is freed from having to assign test inputs and outputs and define test patterns for most devices, by Robert E. Balliew, pg 11-14. 3065.

Board Test Connection Terminology, pg 13

Digital Subsystem for a Board Test System. A keep/toggle vector definition scheme reduces storage requirements and increases test throughput, by Matthew L. Snook, Michael A. Teska, pg 14-20. 3065.

Digital Test Throughput, by Thomas R. Fay, pg 16-17

Safeguarding Devices Against Stress Caused by In-Circuit Testing. Built-in software takes care of this for the HP 3065 user, by Vance R. Harwood, pg 20-22

Extensive Library Simplifies Digital Board Test Setup. Test routines for over 2700 common digital devices are part of the HP 3065 software, by Randy W. Holmberg, pg 23-25

An Interpreter-Based Board Test Programming Environment. This high-level language extends BASIC for use in defining circuit board tests, by Mark A. Mathieu, pg 25-28. 3065.

Testing for Short-Circuit Failures. One has to separate random short-circuits from desired short-circuits and watch out for “phantoms”, by T. Michael Hendricks, pg 28-30. 3065.

Reducing Errors in Automated Analog In-Circuit Test Program Generation. Careful design is required to generate correct tests for more than 90% of a board’s components, by John E. McDermid, pg 31-36

Correction: The complex results for the complicated expression on page 26 in the article “ROM Extends Numerical Function Set of Handheld Computer, page 25 in the July 1984 issue, is incorrect, pg 36

November 1984 v.35 n.11

Cover: HP 3577A Network Analyzer’s built-in CRT

An Advanced 5-Hz-to-200-MHz Network Analyzer. This instrument is a complete network analysis system containing an integrated three-input receiver subsystem, a graphics display, and a synthesized signal source. Softkey menus and a powerful operating system make it easy to set up and use, by Robert A. Witte, Jerry W. Daniels, pg 4-16. 3577A.

User-Defined Vector Math Expands Measurement Capabilities, by Kenneth M. Voelker, pg 8-9

A Broadband Two-Port S-Parameter Test Set. Clever transformer and stripline designs allow operation over a frequency range of three decades and one octave, by William M. Spaulding, pg 17-20. 35677A/B.

An ADC for a Network Analyzer Receiver. This two-pass-conversion design allows a 12-bit ADC to cover a 17-bit dynamic range, by Alan J. Baker, pg 21-23. 3577A.

Authors November 1984: Jerry W. Daniels, Robert [Bob] A. Witte, William [Bill] Spaulding, Alan J. Baker, Jean-Claude Dureau, Jacques Firdmann, Jean Bounaix, Mark J. Divittorio, Thomas [Tom] B. Pritchard, David [Dave] S. Lee, pg 24

An Industrial Workstation Terminal for Harsh Environments. This terminal is designed to collect production data right at the source on the shop floor in adverse environmental conditions, by Jean Bounaix, Jean-Claude Dureau, Jacques Firdmann, pg 25-29. 3081A.

How Do You Describe Terminal Ruggedness? pg 26

High-Quality, Dot-Matrix Impact Printer Family. Easy paper handling, last-form tearoff, graphics, and a friendly control panel are some of the common features, by Mark J. DiVittorio, pg 30-32. 293X, 2932A, 2933A, 2934A.

Custom IC Controls Dot-Matrix Impact Printers. This custom integrated circuit performs the complex logic required for controlling the printwires and the printhead carriage motor in a family of high-performance serial dot-matrix printers, by Thomas B. Pritchard, David S. Lee, pg 33-36. 293X.

December 1984 v.35 n.12

Cover: HP 3561A Dynamic Signal Analyzer

Versatile Instrument Simplifies Dynamic Signal Analysis at Low Frequencies. Analysis of low-frequency signals has many uses in electronic design, vibration studies, and acoustic measurements. This easy-to-use analyzer covers the range from 125mHz to 100 kHz and displays the data in several useful formats, by James S. Epstein, pg 4-11. 3561A.

Dynamic signal Analysis for Machinery Maintenance, pg 6

Hardware Design for a Dynamic Signal Analyzer. A two-pass A-to-D converter, a pseudorandom noise dithering scheme, and custom digital filters are key elements, by James S. Epstein, Glenn R. Engel, Donald R. Hiller, Glen L. Purdy, Jr., Bryan C. Hoog, Eric J. Wicklund, pg 12-17. 3561A.

Instrument Software for Dynamic Signal Analysis. With many combinations of setup parameters to choose from, friendly softkey control and autocalibration are required. Overlapped processing provides the necessary speed, by Glenn R. Engel, Donald R. Hiller, pg 17-19. 3561A.

FFT Implementation, by Bryan C. Hoog, pg 20

Index: Volume 35 January 1984 through December 1984. PART 1: Chronological Index, pg 21-22. PART 2: Subject Index, pg 22-25. PART 3: Model Number Index, pg 25-26. PART 4: Author Index, pg 26.

Authors December 1984: James [Jim] S. Epstein, Eric J. Wicklund, Bryan C. Hoog, Glen L. Purdy, Jr., Glenn R. Engel, Donald [Don] R. Hiller, Charles [Charlie] R. Panek, Steven [Steve] K. Kator, pg 27

Custom Digital Filters for Dynamic Signal Analysis. A paired-bit implementation increases processing speed without requiring a higher clock rate, by Charles R. Panek, Steven F. Kator, pg 28-35. FFT.

January 1983 v.34 n.1

Cover: HP-IL (Hewlett Packard Interface Loop)

HP-IL: A Low-Cost Digital Interface for Portable Applications. The Hewlett-Packard Interface Loop is a bit-serial interface bringing many capabilities formerly reserved for much larger computer systems to the growing repertoire of portable computers and handheld calculators, by Roger D. Quick, Steven L. Harper, pg 3-10

How Fast is the HP-IL? by Steve Harper, pg 7

HP-IL Interconnect System. Clever plugs and connectors and inexpensive two-wire cords connect HP-IL devices, by James H. Fleming, pg 8

[Authors:] Steven [Steve] L. Harper, Roger D. Quick, pg 9

The Electronics Interface for the Hewlett-Packard Interface Loop. This low-cost, low-power, serial interface uses two-wire cables, a three-level code, a CMOS IC, and small pulse transformers, by Carl J. Landsness, pg 11-16. HP-IL, 82160A.

[Author:] Carl J. Landsness, pg 16

A CMOS Integrated Circuit for the HP-IL Interface. This IC, available to OEM designers, makes it easy to add HP-IL capability to a product, by Steven L. Harper, pg 16-22

CMOSC: Low-Power Technology for Personal Computers. To meet the growing need for integrated circuits with more functions and lower power consumption, an improved CMOS process has been developed at HP’s Corvallis Division, by Craig S. Lage, Norman L. Johnson, David E. Hackleman, John J. Vietor, Robert L. Tillman, pg 23-29

What is a Latch-Up? pg 28

[Authors:] Norman [Norm] L. Johnson, David E. Hackleman, John J. Vietor, Robert [Bob] L. Tillman, Craig S. Lage, pg 29

Advanced Oven Design Assures Repeatability in New Gas Chromatograph. An innovative oven design gives the chromatographer access to the full capabilities of the new fused silica capillary columns, by Douglas H. Smith, Paul C. Dryden, Horace R. Johnson, Jr., pg 30-34. 5790A.

What is Gas Chromatography? Here’s some basic information for nonchemists, by Fred W. Rowland, pg 32-33

[Author:] Fred W. Rowland, pg 33

[Authors:] Douglas [Doug] H. Smith, Horace R. Johnson, Jr., Paul C. Dryden, pg 34

Electronic Flow Control: A New Level of Automation for Gas Chromatography. An innovative gas flow controller for the HP 5880A Gas Chromatograph offers a choice of pressure or mass flow control without instrument modification and independent of the gas measured, by Michael A. Casale, Andrew J. Murphy, J. Edwin Cusack, Kurt B. Augenblick, pg 35-40

Producing the Electronic Flow Controller, pg 38

[Authors:] Kurt B. Augenblick, J. Edwin [Ed] Cusack, Michael [Mike] A. Cassale, Andrew [Andy] J. Murphy, pg 40

February 1983 v.34 n.2

Cover: 3421A Data Acquisition/Control Unit

A Portable, Low-Cost, High-Performance Digital Multimeter for the HP-IL. HP’s first HP-IL instrument is the result of new design and manufacturing approaches. This DMM electronically calibrates itself, measures ac and dc voltages and currents, makes four-wire and two-wire resistance measurements, and uses a liquid-crystal display to output data measurement units, and alphanumeric messages, by Jack P. Trautman, Lawrence A. DesJardin, pg 3-10. 3468A.

HP-IB Version of 3468A, pg 5. 3478A.

The Philosophy Behind the Design, pg 8-9. 3468A.

[Authors:] Lawrence [Larry] A. DesJardin, Jack P. Trautman, pg 10

Low-Cost and Portability Come to Data Acquisition/Control Products. Inexpensive, portable data logging with the flexibility of a data acquisition/control system is now within the budget of nearly everyone making transducer measurements, by James J. Ressmeyer, pg 10-16. 3421A.

Data Acquisition and Control Software for the 3421A Using the HP-85 Computer. This system provides easy-to-use data logging capability at low cost, by David F. Leonard, pg 13-14

[Author:] David [Dave] F. Leonard, pg 14

[Author:] James [Jim] J. Ressmeyer, pg 16

Low-Cost Instrument Control: A New ROM for the HP-41 Handheld Computers. Now HP-41 users can control instruments to measure and analyze a variety of physical parameters on the bench or in the field, by David L. Wolpert, pg 16-19. 3468A, 44468A.

[Author:] David [Dave] L. Wolpert, pg 19

Electronic Mail for the Interactive Office. Here’s how electronic mail is implemented on the HP 3000 Computer System. HPMAIL lets users who aren’t familiar with computer technology exchange messages effectively within their organization, by Ian J. Fuller, pg 20-29

[Author:] Ian J. Fuller, pg 29

Integrated Tools Improve Programmer Productivity. This software subsystem for the HP 3000 Computer System saves program development time by giving the programmer access to several utilities through a single command interpreter, by Anil K. Shenoy, Carolyn M. Bircher, pg 30-36. HPToolset.

[Author:] Carolyn M. Bircher, Anil K. Shenoy, pg 36

March 1983 v.34 n.3

Cover: HP 64000 Logic Development System

Extensive Logic Development and Support Capability in One Convenient System. HP’s 64000 Logic Development Systems gets closer to the concept of an “electronic bench”. Real-time emulation, configuration flexibility, and integrated analysis functions are some features of this latest version of the 64000 System, by Michael W. Davis, John A. Scharrer, Robert G. Wickliff, Jr., pg 3-10

HP 64000 Terminal Software. Now a logic development station can exchange data and programs with large computers, by Paul D. Bame, pg 6

[Author:] Paul D. Bame, pg 6

The HP 64000 Measurement System. This software package can control and monitor any measurement operation in a 64000 System, by Kipper K. Fulghum, pg 8-9

[Author:] Kipper [Kip] K. Fulghum, pg 9

[Authors:] John A. Scharrer, Robert [Bob] G. Wickliff, Jr., Michael [Mike] W. Davis, pg 10

Mainframe Design for an Integrated Engineering Workstation. You can take the new 64110A Station with you to solve field problems. Both 64000 System stations now have dual flexible disc drives, by Alan J. DeVilbiss, Jeffrey H. Smith, Carlton E. Glitzke, pg 11-15

[Authors:] Carlton [Carl] E. Glitzke, Alan [Al] J. DeVilbiss, Jeffrey [Jeff] H. Smith, pg 15

A Modular Analyzer for Software Analysis in the 64000 System. Measuring software performance and tracing program flow is much easier with this new option, by Stan W. Bowlin, Steven R. Williams, Richard A. Nygaard, Jr., Frederick J. Palmer, Bryce S. Goodwin, Jr., pg 16-23. 64620S.

Range Detection in the 64620S State Analyzer, pg 18-19

Inverse Assembly for a General-Purpose Logic Analyzer, pg 21

[Authors:] Stan W. Bowlin, Frederick [Rick] J. Palmer, Richard [Rick] A. Nygaard, Jr., Bryce S. Goodwin, pg 22

[Author:] Steven [Steve] R. Williams, pg 23

A Modular Logic Timing Analyzer for the 64000 System. A dual-threshold mode, glitch detection, and a variety of triggering functions are some of this option’s features for the digital hardware designer, by Joel A. Zellmer, David L. Neuder, John E. Hanna, pg 23-30

[Authors:] David [Dave] L. Neuder, John [Ted] E. Hanna, Joel A. Zellmer, pg 30

Emulators for 16-bit Microprocessors. HP’s second-generation of emulators provides design support for a variety of new 16-bit devices, by John P. Romano, David B. Richey, pg 31-38

[Authors:] John P. Romano, David [Dave] B. Richey, pg 37

High-Level Language Compilers for Developing Microprocessor Systems. Choosing the right structure has important benefits for the user, by Joel D. Tesler, Martin W. Smith, pg 38-40

[Authors:] Joel D. Tesler, Martin [Marty] W. Smith, pg 40

April 1983 v.34 n.4

Cover: Laser Measurement System

A New Microcomputer-Controlled Laser Dimensional Measurement and Analysis System. Microcomputer control simplifies machine tool calibration. Other applications are in research and development, general-purpose metrology, and surface plate calibration, by Robert C. Quenelle, Lawrence J. Wuerz, pg 3-13. LMS, 5528A.

Dimensional Metrology Software Eases Calibration. An HP-85 Computer automates complex laser calibrations to save time and reduce errors, by Christopher Burns, Lawrence J. Wuerz, pg 4-5

Verifying the Laser Accuracy Specification, by Robert C. Quenelle, pg 8

Nonlinearity in Interferometer Measurements, by Robert C. Quenelle, pg 10

Automatic Compensation. Sensors help the laser measurement system compensate for atmospheric conditions and material temperature, by Deane A. Gardner, pg 12

[Authors:] Christopher [Chris] Burns, Deane A. Gardner, Lawrence [Larry] J. Wuerz, Robert [Bob] C. Quenelle, pg 13

Laser Optical Components for Machine Tool and Other Calibrations. Each optical component is designed to measure a particular degree of freedom of a machine tool, by Larry E. Truhe, David C. Woodruff, Richard R. Baldwin, pg 14-22. 5528A.

Manufacturing the Laser Tube. Custom-designed machines automate the process to control quality at every step, by Richard H. Grote, pg 17-18

[Author:] Richard [Dick] H. Grote, pg 18

Mechanical Design Features of the Laser Head. Low manufacturing cost and ease of repair are designed in, by Charles R. Steinmetz, pg 19-20

[Author:] Charles [Charlie] R. Steinmetz, pg 20

[Authors:] Larry E. Truhe, Richard [Dick] R. Baldwin, David [Dave] C. Woodruff, pg 22

Noise Figure Meter Sets Records for Accuracy, Repeatability, and Convenience. Noise figure measurements used to be mysterious, time consuming, difficult, and not very accurate. This instrument makes them quick, accurate and easy, by Howard L. Swain, Rick M. Cox, pg 23-34. 8970A.

A Noise Source for Noise Figure Measurements, by Donald R. Chambers, pg 26-27

Verifying the 8970A’s Accuracy in Production, by Harry Bunting, pg 28

Appendix: Noise Figure Basics, pg 33-34

[Authors:] Rick M. Cox, Howard L. Swain, pg 34

Laboratory Notebook: Mass Storage Unit Exerciser. The problem was how to provide built-in diagnostics for a flexible disc drive that didn’t come with them, by Jin-ichi Ikemoto, pg 35-36. 4145A.

May 1983 v.34 n.5

Cover: HP 8673A Synthesized Signal Generator

2-to-26.5-GHz Synthesized Signal Generator Has Internally Leveled Pulse Modulation. This second-generation instrument features microprocessor control, sophisticated sweep capabilities, programmability, and enhanced serviceability, by William W. Heinz, Paul A. Zander, pg 3-9. 8673A.

Sample-and-Hold Leveling System. A logarithmic amplifier in the feedback loop reduces the effects of loop-gain variations, by Ronald K. Larson, pg 7. 8673A.

[Authors:] William [Bill] W. Heinz, Paul A. Zander, pg 9

A Wideband YIG-Tuned Multiplier and Pulsed Signal Generation System. This system enhances output power and frequency range and reduces pulse rise time for HP’s latest synthesized signal generator, by Lawrence A. Stark, Ronald K. Larson, pg 10-16. 8673A.

Autopeaking. A small amount of hardware and some microprocessor code adjusts a YIG-tuned multiplier to the center of its passband, by Paul A. Zander, pg 12-13

[Authors:] Lawrence [Larry] A. Stark, Ronald [Ron] K. Larson, pg 16

Compact Digital Cassette Drive for Low-Cost Mass Storage. This portable battery-operated unit uses minicassettes to store programs and data inexpensively for HP-IL systems, by David J. Shelley, William A. Buskirk, Charles W. Gibson, pg 17-24. 82161A.

[Authors:] William [Bill ‘Buzzy’] Buskirk, Charles [Charlie] W. Gilson, David [Dave] J. Shelley, pg 24

Scientific Pocket Calculator Extends Range of Built-In Functions. Matrix operations, complex number functions, integration, and equation solving are only some of the numerous preprogrammed capabilities of HP’s latest scientific calculator, the HP-15C, by Joseph P. Tanzini, Paul J. McClellan, Eric A. Evett, pg 25-35

[Authors:] Paul J. McClellan, Joseph [Joe] P. Tanzini, pg 35

A Pocket Calculator for Computer Science Professionals. This compact, yet powerful pocket calculator is designed for technical professionals working in computer science and digital electronics. Boolean operations and bit manipulation are some of its capabilities, by Eric A. Evett, pg 36-40. HP-16C.

Real [Floating-Point] Format, pg 37

Using the HP-16C, pg 38-39

[Author:] Eric A. Evett, pg 40

June 1983 v.34 n.6

Cover: Magnetic card reader of the HP-75 Portable Computer

A Portable Computer for Field, Office, or Bench Applications. This lightweight, battery-powered computer has features that make it an ideal tool for the traveling professional, by Anthony S. Ridolfo, Donald E. Morris, Donald L. Morris, pg 3-9. HP-75.

A Telephone Interface for HP-IL Controllers. Now you can access a remote computer system from your hotel room or a telephone booth, by Brian G. Spreadbury, Sidnee Snell, pg 5-6. 82168A.

HP-IL and the HP-75 Portable Computer. HP’s interface loop lets the HP-75 control a variety of portable peripherals to store and receive data and print results, by Dennis C. York, pg 8-9

High-Capability Electronics Systems for a Compact, Battery-Operated Computer. Here’s how to pack a computer with an integral display and card reader into a small ESD-resistant package, by Elizabeth Brooks, Timothy F. Myers, Robert J. Livengood, Rex C. Smith, pg 10-15. HP-75.

Packaging a Portable Computer, by Lee S. Mason, Gary G. Lutnesky, pg 12

Electrostatic Discharge Protection for the HP-75, by Gregory J. May, pg 14

Handpulled Magnetic Card, Mass Storage System for a Portable Computer. Behind the elegant, simple design of the HP-75’s internal card reader is some clever engineering work, by Kenneth R. Hoecker, James R. Schwartz, Francis A. Young, Dean R. Johnson, pg 15-23

The HP-75 Production Card Recorder. To supply quality blank and application program cards in quantity is the job of this high-volume, ultra reliable system, by David B. Patton, pg 20-21

Integration of the HP-75’s Handpulled Card Reader Electronics in CMOS. Both analog and digital circuits are on a single IC, by Billy E. Thayer, Thomas J. Arnold, pg 24-26

A New Family of Pulse and Pulse/Function Generators. Here are three compact, easy-to-use instruments with the versatility needed for analog and digital applications over wide frequency and amplitude ranges , by Helmut Rossner, Uwe Neumann, Michael Fleischer, pg 27-32. 8116A, 8111A, 8112A.

Feedback Amplifier Has Push-Pull Voltage Output Stage, by Michael Fleischer, pg 30

Designing Bipolar Integrated Circuits for a Pulse/Function Generator Family. The varied capabilities of the three instruments in this family begin with the same three ICs, by Volker Eberle, Stephan Traub, Horst Schweikardt, Christian Hentschel, Adolf Leiter, pg 33-38

Authors June 1983: Donald [Don] E. Morris, Donald [Don] L. Morris, Anthony [Tony] S. Ridolfo, Brian G. Spreadbury, Sidnee Snell, Dennis C. York, Elizabeth [Beth] Brooks, Rex. C. Smith, Robert [Bob] J. Livengood, Timothy [Tim] F. Myers, Francis [Raan] A. Young, Kenneth [Ken] Hoecker, Dean R. Johnson, James [Jim] R. Schwartz, David [Dave] B. Patton, Thomas [Tom] J. Arnold, Billy [Bill] E. Thayer, Michael Fleischer, Helmut Rossner, Uwe Newmann, Christian Hentschel, Stefan Traub, Adolf Leiter, Horst Schweikardt, Volker Eberle, pg 38-40

July 1983 v.34. n.7

Cover: Three views, at progressively finer resolution, of the timing diagram of a RAM

A High-Speed System for AC Parametric Digital Hardware Analysis. This new 50-MHz stimulus-response system is a state-of-the-art tool for comprehensive and rapid characterization of all types of digital circuits, by Andreas Wilbs, Klaus-Peter Behrens, pg 3-7. 8180A/81A/82A.

Parametric Characterization of Digital Circuits, pg 4

A High-Speed Data Generator for Digital Testing. It offers high timing accuracy, precise pulse-level definition, ease of operation, and versatility, by Werner Berkel, Heinz Nussle, Josef Becker, Ulrich Hubner, pg 7-14. 8180A/81A/82A.

High-Speed Data Analyzer Tests Threshold and Timing Parameters. Two innovative features are programmable sampling point delay and real-time compare mode, by Bernhard Roth, Ulrich Schottmer, Martin Dietze, Dieter Kible, pg 14-25. 8182A.

What is Window Comparison?, by Martin Dietze, pg 15

Generation of Analog Voltages, by Bernhard Roth, pg 18

Testing the Key Specification of the 8182A, by Bernhard Roth, pg 20

Interfacing the Device Under Test, by Horst Link, pg 23

Data Analyzer Software/Firmware Design. A skilled task dispatcher makes full use of the interrupt structure of the CPU, by Roberto Mottola, Eckhard Paul, pg 25-28. 8182A.

Power Supplies for the Stimulus/Response System. The objectives were high load current and serviceability within a restricted space, by Ulrich Otto, Horst Link, pg 28-31. 8180A/81A/82A.

New Multi-Frequency LCZ Meters Offer Higher-Speed Impedance Measurements. These instruments, combined with an optional interface and a component handler, make production-line measurements of the impedance parameters of discrete electronic components rapidly and accurately at actual operating frequencies, by Takeshi Kyo, Toshio Tamamura, Tomio Wakasugi, pg 32-38. 4277A, 4276A.

Comparator, pg 34

High-Speed Programmable dc Bias Options, pg 37

History from the Pages of the Hewlett-Packard Journal. A book of articles from past issues is underway, to be titled “Inventions of Opportunity: Matching Technology with Market Needs”, by R. P. Dolan, pg 38

Authors July 1983: Klaus-Peter Behrens, Andreas Wilbs, Werner Berkel, Ulrich Hubner, Josef [Jo] Becker, Neinz Nussle, Ulrich Schottmer, Martin Dietze, Dieter Kible, Bernhard Roth, Roberto Mottola, Eckhard Paul, Horst Link, Ulrich Otto, Takeshi Kyo, Toshio Tamamura, Tomio Wakasugi, pg 39-40

August 1983 v. 34 n.8

Cover: Finstrates (a brand new method of mounting chips)

VLSI Technology Packs 32-Bit Computer System into a Small Package. The new HP 9000 Computer is a compact, highly capable 32-bit computer system that incorporates five very dense integrated circuits made by a highly refined NMOS process, by S. Dana Seccombe, Eugene R. Zeller, Joseph W. Beyers, pg 3-6

Acknowledgments: Bringing these complex technologies to production in late 1982 was the result of the determination and dedication of many people, pg 6

An 18-MHz, 32-Bit VLSI Microprocessor. This NMOS IC contains over 450,000 transistors, by Mark E. Hammer, Darius F. Tanksalvala, Kevin P. Burkhart, Mark A. Forsyth, pg 7-11. 9000.

Instruction Set for a Single-Chip 32-Bit Processor. A stack-oriented design using segmentation forms this command set, by James G. Fiasconaro, pg 9-10

VLSI I/O Processor for a 32-Bit Computer System. this IC uses the same basic circuits as the CPU chip, by Fred J. Gross, Donald R. Weiss, William S. Jaffe, pg 11-14. 9000.

High-Performance VLSI Memory System. This system provides 256K bytes of memory per card and has a bandwidth of 36M byte/s, by Joseph P. Fucetola, Clifford G. Lob, Mark A. Ludwig, Mark J. Reed, pg 14-20. 9000.

18-MHz Clock Distribution System. A clock IC provides buffered two-phase, nonoverlapping clocks, by Clifford G. Lob, Alexander O. Elkins, pg 17

128K-Bit NMOS Dynamic RAM with Redundancy. Extra rows and columns improve chip yield, by John R. Spencer, Dale R. Beucler, John K. Wheeler, Charlie G. Kohlhardt, pg 20-24. 9000.

Polysilicon Link Fusing and Detection Circuit, by Douglas F. DeBoer, pg 23

Finstrate: A New Concept in VLSI Packaging. Finstrate combines a copper fin for heat conduction and dissipation with a multilayer substrate for low-capacitance interconnection between ICs, by Glen E. Leinbach, Jeffery J. Straw, Guy R. Wagner, Arun K. Malhotra, pg 24-26

NMOS-III Process Technology. Refractory metallization, external contact structures,

1.5-mm wide lines and 1.0-mm spaces are used in this VLSI process, by Arun K. Malhotra, S. Dana Seccombe, Fung-sun Fei, James M. Mikkelson, pg 27-30. 9000.

Polysilicon Link Design, by Wiliam C. Terrell, pg 28

Automated Parameter Testing, by Fredrick P. LaMaster, O. Douglas Fogg, pg 29

Two-Layer Refractory Metal IC Process. Tungsten metallization reduces the risk of electromigration failure, by Daniel D. Kessler, Donald E. Novy, Jr., David W. Quint, Norman E. Hendrickson, James P. Roland, pg 30-32

Defect Control for Yield Improvement, by Lawrence A. Hall, pg 33

NMOS-III Photolithography. Step-and-repeat optical lithography, two-layer resist, and pellicles are salient features, by Martin S. Wilson, Keith G. Bartlett, Howard E. Abraham, Gary L. Hillis, Mark Stolz, pg 34-37

Yield Improvement by Use of Pellicles, by Robert Slutz, pg 36

Authors August 1983: Eugene [Gene] R. Zeller, S. Dana Seccombe, Joseph [Joe] W. Beyers, Kevin P. Burkhart, Darius F. Tanksalvala, Mark A. Forsyth, Mark E. Hammer, James [Jim] G. Fiasconaro, Donald [Don] R. Weiss, William [Bill] F. Jaffe, Fred J. Gross, Clifford [Cliff] G. Lob, Mark J. Reed, Joseph [Joe] Fucetola, Mark A. Ludwig, Alexander O. Elkins, Dale R. Beucler, John K. Wheeler, John R. Spencer, Charles [Charlie] G. Kohlhardt, Glen E. Leinbach, Arun K. Malhotra, Jeffery [Jeff] J. Straw, Guy R. Wagner, Fung-Sun Fei, James [Jim] M. Mikkelson, Norman [Norm] E. Hendrickson, Donald [Don] E. Novy, Jr., Daniel [Dan] D. Kessler, David [Dave] W. Quint, James [Jim] P. Roland, Gary L. Hillis, Howard E. Abraham, Mark Stolz, Keith G. Bartlett, Martin [Marty] S. Wilson, pg 37-40

September 1983 v.34 n.9

Cover: A brightly colored space-fantasy and other slides created on the HP 2700

A Color Presentation Graphics Workstation. Here’s a remarkable new workstation family for presentation graphics design, decision support graphics, and graphic art. It features powerful, easy-to-use application software and full block-mode terminal capabilities, by William R. Taylor, Kenneth A. Mintz, Catherine M. Potter, Sharon O. Mead, pg 3-8. 2700.

A System for Creating Graphics Presentations, by John Alburger, Diane Rodriguez, pg 7

ROM/RAM Intrinsics Strategy, pg 8

Designing Software for High-Performance Graphics. It had to offer advanced graphics features and yet be compatible with other HP graphics terminals, by Robert R. Burns, Dale A. Luck, pg 9-14. 2700.

Logic Design for a Graphics Subsystem. Dedicated graphics hardware provides a quick response time, by Craig W. Diserens, Curtis L. Dowdy, William R. Taylor, pg 15-18. 2700.

A High-Resolution Color Monitor. It produces 4096 pure colors and is easy to align, by Paul G. Winninghoff, Mark Hanlon, Geoffrey G. Moyer. 2700.

EMI Entanglements, by Geoff Moyer, pg 19

HP 2700 Power Supply, by Craig Diserens, pg 20

The Graphics Workstation as an Extensible Computer Terminal. The terminal subsystem provides an alphanumeric display, keyboard control, datacom, and local device control, by Thomas K. Landgraf, Stephen P. Pacheco, Paula H. Ng, Otakar Blazek, Edward Tang, pg 22-25. 2700.

A Computer-Aided Test and Tracking System. The test system and the product were designed together, by Charles W. Andrews, Michael R. Perkins, Susan Snitzer, pg 25-28

Product Design of a Friendly Color Graphics Workstation. It doesn’t intimidate the user because of its size, noise level, or apparent complexity, by Badir M. Mousa, Dennis C. Thompson, Kenneth D. Boetzer, Mark A. Della Bona, pg 28-29. 2700.

Display Enhancement, by Bud Mousa, pg 29

HP 2700 Graphics Input Devices, by Bud Mousa, Dennis Thompson, pg 30-31

AUTOPLOT/2700: A Single Approach to Custom Chart Generation. This software will make most of the decisions or leave them to the user, by John M. Perry, Stanley A. Balazer, pg 31-34

PAINTBRUSH/2700: A General-Purpose Picture Creator. Whether novice or expert, the graphic artist can create pictures naturally and interactively, by John R. Alburger, Jim L. Davis, Diane A. Rodriguez, Barbara A. Stanley, pg 34-37

Implementing HP 2700 Applications Software, by Jim Davis, Diane Rodriguez, pg 26

Authors September 1983: Sharon O. Mead, Catherine [Cathy] M. Potter, William [Bill] R. Taylor, Kenneth [Ken] A. Mintz, Dale A. Luck, Robert [Bob] A. Burns, Craig W. Diserens, Curtis [Curt] L. Dowdy, Geoffrey [Geoff] G. Moyer, Paul G. Winninghoff, Mark Hanlon, Stephen [Steve] P. Pacheco, Edward [Ed] Tang, Paula H. Ng, Otakar [Oty] Blazek, Thomas [Tom] K. Landgraf, Michael [Mike] R. Perkins, Charles W. Andrews, Susan [Susie] Snitzer, Mark A. Della Bona, Dennis [Denny] C. Thompson, Kenneth [Ken] D. Boetzer, Badir [Bud] M. Mousa, John M. Perry, Stanley [Stan] A. Balazer, Jim L. Davis, John R. Alburger, Barbara A. Stanley, Diane A. Rodriguez, pg 38-40

October 1983 v.34 n.10

Cover: HP 77020A Ultrasound Imaging System

Ultrasound Imaging: An Overview. By using a beam of ultrasound, it is possible to look at organs and other structures inside the human body without breaking the skin, by Arthur M. Dickey, H. Edward Karrer, pg 3-6

History of HP’s Ultrasound System. Developing this complex system required the contributions of many people at Hewlett-Packard Laboratories and HP’s Andover Division, by John T. Hart, pg 5. 77020A.

An Ultrasound Imaging System. This instrument views the internal organs and tissues of the human body in real time by directing a beam of short ultrasound pulses into the body and then receiving and processing the acoustic echoes to form a displayed image, by Lawrence W. Banks, pg 6-11. 77020A.

Quantitative Analysis for Ultrasound Imaging. This software allows the cardiologist or obstetrician to measure the length and calculate the area or volume of structures displayed by an ultrasound image, by Rachel M. Kinicki, pg 8-9. 77020A.

Authors October 1983: H. Edward [Ed] Karrer, Arthur [Art] M. Dickey, Lawrence [Larry] W. Banks, Rachel M. Kinicki, Richard L. Popp, M.D., John D. Larson III,  David [Dave] G. Miller, George [Tony] A. Fisher, Thomas [Tom] L. Szabo, Gary A. Seavey, Steven [Steve] C. Leavitt, Barry F. Hunt, Hugh G. Larsen, Richard [Jim] J. Conrad, Richard [Rick] A. Snyder, Paul A. Magnin, pg 11-12

A Physician’s View of Echocardiographic Imaging. Effectively applying the advantages of ultrasound imaging to medical diagnosis requires good equipment and training, by Richard L. Popp, M.D, pg 13-16

An Acoustic Transducer Array for Medical Imaging – Part I. The basic design and fabrication constraints are described, by John D. Larson III, pg 17-22

An Acoustic Transducer Array for Medical Imaging – Part II. An equivalent circuit model simplifies the design process, by David G. Miller, pg 22-26

Transducer Test System Design. This automatic system simplifies the measurement of a variety of acoustic and electrical parameters, by George A. Fisher, pg 24-25

Radiated Power Characteristics of Diagnostic Ultrasound Transducers. Accurate measurement of acoustic energy is important in ensuring patient safety, by Thomas L. Szabo, Gary A. Seavey, pg 26-29

A Scan Conversion Algorithm for Displaying Ultrasound Images. Converting acoustic data in polar coordinates to an undistorted display in rectangular coordinates requires a special technique, by Steven C. Leavitt, Hugh C. Larsen, Barry F. Hunt, pg 30-34. 77020A.

Ultrasound Image Quality. Many parameters affect the quality of an ultrasound image, by Richard J. Conrad, Richard A. Snyder, pg 34-38

Coherent Speckle in Ultrasound Images. This phenomenon is often misinterpreted, but with better understanding, could be used to characterize tissue by Paul A. Magnin, pg 39-40

November 1983 v.34 n.11

Cover: Color Business Chart created on a computer

Device-Independent Software for Business Graphics. New programs fortify the electronic office with a choice of graphics interfaces, by Yvonne Temple, pg 3-4. DSG/3000, HPEASYCHART, 17623A, HPDRAW, 2680A.

A Decision Support Chartmaker. Two user interfaces satisfy the needs of both the nonprogrammer and the sophisticated user, by Richard J. Simms, Jr., Janet Elich Morris, pg 5-9. DSG/3000.

An Easy-to-Use Chartmaker. It’s the simplest way for a nonprogrammer to get a professional-looking chart, by Robert W. Dea, Martha Seaver, Richard J. Simms, Jr., pg 10-12. HPEASYCHART.

Convenient Creation and Manipulation of Presentation Aids. Draw figures freehand or choose them from a library, then edit them by point-and-push methods, by Janet Swift, Chayaboon Purnaveja, pg 13-17. HPDRAW.

Graphics Capabilities on a Laser Printer. Printers do text documents and plotters produce graphics but this printer can do the whole job, by William J. Toms, James C. Bratnober, Tamara C. Baker, Gerald T. Wade, pg 17-22. 2680A.

Special Report: The Center for Integrated Systems. Hewlett-Packard is helping to launch a new research facility at Stanford – and a new approach to industry-university relations in the U.S.A, by Frederick H. Gardner, pg 23-30

CIS Research Topics, pg 29

Authors November 1983: Yvonne Temple, Richard [Rich] J. Simms, Jr., Janet Elich Morris, Robert [Bob] W. Dea, Martha Seaver, Janet Swift, Chayaboon [Audi] Purnaveja, Gerald [Gerry] T. Wade, William [Bill] J. Toms, James [Jim] c. Bratnober, Tamara [Tammy] C. Baker, Frederick [Fred] H. Gardner, pg 31-32

Hewlett-Packard Journal Book Now Available: Inventions of Opportunity: Matching Technology with Market Needs, pg 32

December 1983 v.34 n.12

Cover: Fused Silica Columns

Control Hardware for an Ultrasound Imaging System. Coordinating the various subsystems, peripherals, and operator commands for HP’s diagnostic imaging system requires sophisticated controller hardware, by John N. Dukes, Janet R. Accettura, Richard H. Jundanian, pg 3-5. 77020A, 77900A.

Ultrasound System Software. Coordinating the operation of the complex subsystem in HP’s ultrasound imaging system is a comprehensive software system using an internal bus based on the HP-IB, by Joseph M. Luszcz, William A. Koppes, Robert J. Kunz, David C. Hempstead, pg 6-13. 77020A, 77900A, 77200A, 77400A.

Electronic Scanner for a Phased-Array Ultrasound Transducer. This subsystem controls the transmission and reception of ultrasound pulses by 64 transducer elements to scan a 90° sector and collect data for an ultrasound image, by James T. Fearnside, Sydney M. Karp, Ronald D. Gatzke, pg 13-20. 77020A.

A Mixing Scheme to Focus a Transducer Array Dynamically. An architecture based on a common summing delay line eliminates the need for many separate delay lines, by Robert N. McKnight, pg 16-17

Display System for Ultrasound Images. This subsystem collects digital data from ultrasound scanning and physiological waveforms from other amplifiers and processes them for display in a rectangular raster-scan format, by James R. Mniece, Raymond G. O’Connell, Alwyn P. D’Sa, pg 20-28. 77400A, 77020A.

Video Recording of Ultrasound Images, by James R. Mniece, pg 24-25

Authors December 1983: John N. Dukes, Richard [Rich] H. Jundanian, Janet [Jan] R. Accettura, William [Bill] A. Koppes, Joseph [Joe] M. Luszcz, David [Dave] C. Hempstead, Robert [Bob] J. Kunz, James [Jim] T. Fearnside, Sydney M. Karp, Ronald [Ron] D. Gatzke, Robert [Bob] N. McKnight, Alwyn P. D’Sa, James [Jim] R. Mniece, Raymond [Ray] G. O’Connell, Jr., Bruce L. Ryder, Thomas [Tom] J. Stark, Paul A. Larson, pg 28-29

Index: Volume 34 January 1983 through December 1983. PART 1: Chronological Index, pg 30-31. PART 2: Subject Index, pg 31-33. PART 3: Model Number Index, pg33-34. PART 4: Author Index, pg 34.

Fused Silica Capillary Columns for Gas Chromatography. Here’s how collaborative research between HP’s chemical analysis and optoelectronics laboratories created a vastly superior GC column, by Thomas J. Stark, Bruce L. Ryder, Paul A. Larson, pg 35-40

January 1982 v.33 n.1

Cover: 1345A Graphics Display Module

Signal Processing Using Surface Acoustic Waves. If electrical signals are converted into minute acoustic waves on the surface of a piezoelectric crystal, the signals can be processed in novel ways for various electronic applications. Such devices are small, rugged, and can be fabricated using microelectronic techniques, by William R. Shreve, pg 3-8. SAW.

Radio Data Link, by W. R. Shreve, pg 7

[Author:] William [Bill] R. Shreve, pg 8

Retrofitting for Signature Analysis Simplified. This microprocessor exerciser provides preprogrammed external stimulus routines and monitoring circuits for signature analysis troubleshooting of microprocessor-based systems, by Robert Rhodes-Burke, pg 9-16. 5001A.

Signature Analysis Reviewed, pg 10

The First Hewlett-Packard Journal Reader Opinion Survey, 4 pages, between pg 14 & pg 15

[Author:] Robert [Bob] Rhodes-Burke, pg 16

A Family of Microprocessor Exercisers, by David Rick, Robert Welsh, Waymond Fong, pg 17-19. 5001 Series.

A Fast, Compact High-Quality Digital Display for Instrumentation Applications. Small size, low cost, and a simple digital interface make it easier for designers to build this directed-beam CRT display into their electronic instruments, by William R. Mason, Kunio Hasebe, Thomas J. Zamborelli, pg 20-28. 1345A.

Instrumentation Graphics, pg 24

[Authors:] Thomas [Tom] J. Zamborelli, Junio Hasebe, William [bill] R. Mason, pg 27

February 1982 v.33 n.2

Cover: Model 8350A microwave Sweep Oscillator

A Broadband, Fully Programmable Microwave Sweep Oscillator. Nearly thirty RF and microwave plug-in modules are available to tailor this high-performance swept signal source to a wide range of applications in the frequency range from 10 MHz to 26.5 GHz, by Rolf Dalichow, Douglas E. Fullmer, pg 3-10. 8350A.

A System-Oriented Instrument, pg 7.

8350A Self-Test Capabilities, by Bill McDonald, pg 10

[Authors:] Douglass [Doug] E. Fullmer, Rolf Dalichow, pg 10

A New Series of Programmable Sweep Oscillator Plug-ins. One plug-in sweeps from 10 MHz to 26.5 GHz and there are many others, by Duaine C. Wood, Gary W. Holmlund, Glenn E. Elmore, pg 11-21. 83500 Series.

A Switched YIG-Tuned Multiplier Covering 0.01 to 26.5 GHz, by Lynn Rhymes, pg 15

A Frequency Doubler with High Output Power from 18 to 26.5 GHz, by Val Peterson, Jerry Orr, pg 17-18

A Broadband 2-to-7-GHz Power Amplifier, by Michio Furukawa, pg 20

[Authors:] Duaine C. Wood, Gary W. Holmlund, Glenn E. Elmore, pg 21

Portable Defibrillator-Monitor for Cardiac Resuscitation. This new portable defibrillator monitors the patient, measures its effectiveness in delivering a high-voltage pulse to the patient, and provides a permanent record of the resuscitation procedure, by Victor C. Jones, Paul I. Bennett, pg 22-28. 78660A.

[Authors:] Victor [Vic] C. Jones, Paul I. Bennett, pg 28

March 1982 v.33 n.3

Cover: Hewlett Packard’s largest computer, the HP 3000 Series 64

High-Performance Computing with Dual ALU Architecture and ECL Logic. This largest and fastest HP 3000 Computer System can handle all of the data processing needs of many companies, by Frederic C. Amerson, Mark S. Linsky, Elio A. Toschi, pg 3-12. Series 64.

Dual ALU Micromachine Has Powerful Development Tools. A single line of microcode controls two parallel processing units, by Richard D. Murillo, pg 5-6. HP 3000 Series 64.

[Author:] Richard [Rick] D. Murillo, pg 6

[Authors:] Frederic [Rick] C. Amerson, Elio A. Toschi, Mark S. Linsky, pg 10

Powerful Diagnostic Philosophy Reduces Downtime. A customer’s computer can be fully diagnosed without making any trips to the site, by Richard F. DeGabriele, David J. Ashkenas, pg 11-14. Series 64.

[Authors:] Richard [Rick] F. DeGabriele, David J. Ashkenas, pg 14

A High-Performance Memory System with Growth Capability. High-speed control store, cache memory and I/O buffers provide quick CPU access to needed data, by Malcolm E. Woodward, Ken M. Hodor, pg 15-17. HP 3000 Series 64.

[Authors:] Ken M. Hodor, Malcolm [Woody] E. Woodward, pg 17

An Input/Output System for a 1-MIPS Computer. I/O adapters match multiple I/O buses to the high-speed central system bus, by W. Gordon Matheson, J. Marcus Stewart, pg 18-21. HP 3000 Series 64.

[Authors:] J. Marcus [Marc] Stewart, W. Gordon Matheson, pg 21

The Advanced Terminal Processor: A New Terminal I/O Controller for the HP 3000. It’s designed to handle up to 256 terminals generating 4000 characters/second with peaks to 20,000, by James E. Beetem, pg 22-25. HP 3000 Series 64

[Author:] James [Jim] E. Beetem, pg 25

GUEST – a Signature Analysis Based Test System for ECL Logic. It runs at real-time clock rates and generates test vectors algorithmically, by James L. Robertson, Edward R. Holland, pg 26-29. HP 3000 Series 64.

Designing for Testability with GUEST. The HP 3000 Series 64 and its tester were designed together, by Karen L. Meinert, pg 28

[Author:] Karen L. Meinert, pg 28

[Authors:] James [Jim] L. Robertson, Edward [Ed] R. Holland, pg 29

Packaging the HP 3000 Series 64. The goal was a cost-effective package that maximizes reliability and serviceability, by Bennie E. Helmso, Manmohan Kohli, pg 30-32

[Authors:] Manmohan [Manny] Kohli, Bennie [Ben] E. Helmso, pg 32

April 1982 v.33 n.4

Cover: Model 3724A/25A/26A Baseband Analyzer

An Integrated Test Set for Microwave Radio Link Baseband Analysis. This instrument combines six traditional test instruments into one package for easy baseband measurements from 50 Hz to 18.6 MHz. An internal microprocessor simplifies test setup, improves accuracy, and enables the instrument to check itself, by Richard J. Roberts, pg 3-7. 3724A/25A/26A.

White-Noise Testing of FDM Communication Links, pg 6

[Authors:] Richard J. Roberts, pg 7

Design of a Precision Receiver for an Integrated Test Set. Different baseband measurements require different and often conflicting receiver characteristics. This design can be reconfigured by a microprocessor to resolve such conflicts, by J. Guy Douglas, David Stockton, pg 8-17. 3724A/25A/26A.

System Software Package for the Baseband Analyzer, pg 17

[Authors:] David Stockton, J. Guy Douglas, pg 17

Control and Display System for a Baseband Analyzer. This system relieves the operator of the task of setting up various instruments for baseband analysis and displays results in both alphanumeric and trace formats, by Brian W. Woodroffe, Lawrence Lowe, pg 18-22. 3724A/25A/26A.

Checking 458,752 Bits of Program Memory, pg 20

[Authors:] Brian W. Woodroffe, Lawrence Lowe, pg 20

Microprocessor Contributions for Baseband Analyzer Accuracy and Speed of Measurement, pg 21. 3724A/25A/26A.

A Combined Tracking and White-Noise Generator. Accurate sine-wave and white-noise stimuli are required for analyzing baseband signals and this generator provides both, by John R. Pottinger, Stephen A. Biddle, pg 22-25. 3724A/25A/26A.

[Authors:] John R. Pottinger, Stephen A. Biddle, pg 25

Wideband, Fast-Writing Oscilloscope Solves Difficult Measurement Problems. A new expansion storage cathode ray tube and a wideband amplifier design extend the writing rate frontier to 2000 cm/ms, by James F. Haley, Danny J. Oldfield, pg 26-32. 1727A.

Variable Persistence, pg 29

[Authors:] James [Jim] F. Haley, Danny [Dan] J. Oldfield, pg 32

May 1982 v.33 n.5

Cover: Model 9386A Desktop Computer

Advanced Multilingual Computer Systems for Measurement Automation and Computer-Aided Engineering Applications. Developing and running a test, measurement and control, or computer-aided engineering system is much easier if you have the right tool. These computer systems are designed specifically for such use, by David W. Palermo, John L. Bidwell, pg 3-7. 9826A, 9836A.

9826A versus 9836A, by Steve Chorak, Jon Rubinstein, pg 4

[Authors:] John L. Bidwell, David W. Palermo, pg 6

Hardware Design for an Integrated Instrumentation Computer System. This desktop computer design is centered around a fast 16-bit microprocessor and integrated CRT display and flexible disc storage units, by James W. McLucas, Don D. Stewart, Robert J. Horning, Ronald G. Rogers, Ken L. Burgess, pg 7-17. 9826A, 9836A.

Product Design for Easy Production, by Dave Brown, Pat Balliew, John Armour, pg 10-11

Instrument Burn-In, by Ken Fedraw, pg 15-16

[Authors:] Ronald [Ron] G. Rogers, Ken L. Burgess, pg 16

[Authors:] Robert [Rob] J. Horning, James [Jim] W. McLucas, Don D. Stewart, pg 17

I/O Philosophy and Architecture for Instrumentation Control. A nonstructured approach provides a new series of I/O cards that have improved performance at a lower cost, by Loyd F. Nelson, pg 17-21. 9826A, 9836A.

[Author:] Loyd F. Nelson, pg 21

Low-Cost Printers for the 9826A and 9836A Computers. This family of compatibly packaged thermal printers provides quality hard copy of alphanumeric text and graphics displays, by Michael J. Sproviero, pg 22-24. 2670 Series, 2673A.

[Author:] Michael [Mike] J. Sproviero, pg 23

The 9826A/9836A Language Systems. BASIC, HPL, and a powerful version of Pascal can all be used by a single 9826A or 9836A Computer System, by Kathryn Y. Kwinn, Roger E. Ison, Robert M. Hallissy, pg 24-32

BCD Arithmetic on the 68000, by Andy Goris, pg 29

[Authors:] Kathryn [Kathy] Y. Kwinn, Robert [Bob] M. Hallissy, Roger E. Ison, pg 32

Data Communications for the 9826A and 9836A Computer Systems. The serial data communications interface handles many asynchronous protocols and drives a variety of RS-232-C peripherals, by Robert P. Uhlrich, Carl M. Dierschow, pg 33-36

Protocols, pg 34

Electrical Standards, pg 35

[Authors:] Carl M. Dierschow, Robert [Bob] P. Uhlrich, pg 35

June 1982 v.33. n.6

Cover: Model 2680 Laser Printing System

Laser Printing System Provides Flexible, High-Quality, Cost-Effective Computer Output. Used with the HP 3000 family of distributed data processing systems, this combination of powerful, interactive software and innovative, state-of-the-art hardware produces excellent print quality on notebook-size paper at 45 pages per minute, by James A. Hall, pg 3-8. 2680A.

Six Steps to a Printed Page. Here are the details of the electrophotographic process used in HP’s laser printing system, by Robert R. Hay, pg 6-7. 2680A.

[Author:] Robert [Bob] R. Hay, pg 7

[Author:] James [Jim] A. Hall, pg 8

Laser Printing System Architecture. It’s based on the concept of a cell printer that can be of arbitrary rectangular size and contain any dot pattern, by James T. Langley, pg 8-10. 2680A.

[Author:] James [Jim] T. Langley, pg 10

Interactive Software for Intelligent Printers. Two high-level software packages for the HP 3000 help the user design and format laser printer output, by Kathleen A. Fitzgerald, pg 10-16. 2680A.

[Author:] Kathleen [Kathy] A. Fitzgerald, pg 16

Electrostatic Image Formation in a Laser Printer. The laser beam causes a pattern of charged and uncharged areas to be formed on the surface of a cylindrical drum, by Erwin H. Schwiebert, Paul R. Spencer, pg 16-20

[Authors:] Paul Spencer, Erwin H. Schwiebert, pg 19

Laser Printer Image Development System. In this discharged-area development system, electrostatic forces drive black toner into the drum areas exposed to the laser beam, by Thomas Camis, pg 20-24. 2680A.

[Author:] Thomas [Tom] Camis, pg 23

Laser Printer Fusing System. After being transferred from the drum to the paper, the toner is made permanent by a novel heating method, by Roger D. Archibald, pg 24-26. 2680.

[Author:] Roger D. Archibald, pg 26

Monitoring the Laser Printing Process. Here’s how the laser printer checks itself to maintain print quality for hundreds of thousands of pages, by Ronald A. Juve, David K. Donald, pg 26-30. 2680A.

[Authors:] David [Dave] K. Donald, Ronald [Ron] A. Juve, pg 30

Specialized High-Speed Electronics for Document Preparation Flexibility. This sophisticated controller harnesses the laser printing technology so its potential can be made easily available to the user, by Philip Gordon, pg 30-35. 2680A.

[Author:] Philip [Phil] Gordon, pg 35

The People Who Made the Product. The 2680 program manager gives credit where it’s due, by Billie J. Robison, pg 36

July 1982 v.33 n.7

Cover: The disassembled cavity and tuning mechanism in front of the 8684B Signal Generator

Optical System Design for the Laser Printing System. Here are the details of the optical system of the 2680 Laser Printing System described in these pages last month, by John R. Lewis, Laurence M. Hubby, J., pg 3-10. 2680A.

Laser Printer Optics Control and Diagnostic Circuit. This system drives the laser-beam modulator and checks the optics module, by Gary L. Holland, pg 5

A Synchronous Mirror-Motor Drive for the Laser Printer. The scanning mirror sweeps the laser beam across the page and this circuit keeps it turning at constant speed, by Gary L. Holland, pg 8-9

[Author:] Gary L. Holland, pg 9

[Authors:] Laurence [Larry] M. Hubby, Jr., John R. Lewis, pg 10

Laser Printer Machine Control System. One of two electronic subsystems within the 2680A Laser Page Printer, the MCS monitors and controls the printing process. Its companion subsystem, the data control system or DCS, was described last month, by James D. Crumly, Von L. Hansen, pg 11-15. 2680A.

Sensing Paper Jams. If the paper drive motor is going too fast or too slowly, the paper may have jammed or torn, by Gary L. Holland, pg 13. 2680A.

[Authors:] Von L. Hansen, James [Jim] D. Crumly, pg 15

Solid-State Microwave Signal Generators for Today’s Exacting Requirements. These manually tuned instruments match the extraordinary spectral purity of widely used HP klystron generators and beat them in modulation capability and accuracy, by Donald R. Chambers, Steven N. Sanders, pg 16-20. 8683A, 8684B.

Automatic Testing of Manually Tuned Signal Generators, by James Thalmann, pg 17

[Authors:] Donald [Don] R. Chambers, Steven [Steve] N. Sanders, pg 19

High-Performance Wideband Cavity-Tuned Solid-State Oscillators. These novel designs use a pair of oscillator circuits coupled into a single high-accuracy tunable cavity, by Ronald F. Stiglich, Edward G. Cristal, Phillip G. Foster, Arthur N. Woo, pg 20-25. 8683A/B, 8684A/B.

dc-Coupled FM for Microwave Signal Generator, by James Thalmann, pg 24

[Authors:] Ronald [Ron] F. Stiglich, Phillip [Phil] G. Foster, Arthur N. Woo, Edward [Bud] G. Cristal, pg 25

A Wide-Dynamic-Range Pulse Leveling Scheme. This design provides leveled output power over a range of 145 dB for both CW signals and pulses as narrow as 100 nonseconds, by James F. Catlin, pg 26-32. 8683A/B, 8684A/B.

An Accurate RF Power Reference Oscillator, by James Catlin, pg 28-29

Microwave Solid-State Amplifiers and Modulators for Broadband Signal Generators. Bsic hybrid microcircuit designs are customized for each of four signal generator models, by Kim Potter Kihlstrom, pg 30-32. 8683A/B, 8684A/B.

[Authors:] Kim Potter Kihlstrom, James [Jim] F. Catlin, pg 32

August 1982 v.33 n.8

Cover: A solarized version of a figure [on page 8] of the edge profile of trilayer process using spin-on glass

Viewpoints: IC Process Technology: VLSI and Beyond. Te demand for ever-smaller device dimensions requires continual advances in IC fabrication techniques and this is where we stand today, by John L. Moll, Frederic N. Schwettmann, pg 3-4

[Authors:] Frederic [Fred] N. Schwettmann, John L. Moll, pg 4

Optical IC Lithography Using Trilayer Resist. Acomposite photoresist layer reduces exposure effects that degrade pattern definition and reduce resolution in optical IC lithography, by E. David Liu, Gary W. Ray, Michael M. O’Toole, pg 5-9. IC Fabrication.

[Authors:] Gary W. Ray, E. David Liu, Michael [Mike] M. O’Toole, pg 9

Silicon Integrated Circuits Using Beam-Recrystallized Polysilicon. Melting a polysilicon layer by using an intense laser or electron beam can significantly improve the properties of the layer for semiconductor device fabrication. Novel vertical device structures can also be formed with this technique, by Theodore I. Kamins, pg 10-13. IC fabrication.

[Author:] Theodore [Ted] I. Kamins, pg 13

X-Ray Lithography. The shorter wavelengths of soft X-ray radiation make the definition of even smaller dimensions for VLSI circuits possible, by Garrett A. Garrettson, Armand P. Neukermans, pg 14-18

[Authors:] Armand P. Neukermans, Garrett A. Garrettson, pg 17

Dry Etching: An Overview. Plasma etching technology has several advantages for IC processing compared to wet-chemical etching methods. Anisotropic etching and automatic endpoint detection are two of the advantages, by Paul J. Marcoux, pg 19-23. IC Fabrication.

An Automated Plasma Reactor, by Susan Okada, pg 22

[Author:] Paul J. Marcoux, pg 23

Thin Films Formed by Plasma-Enhanced Chemical Vapor Deposition. Electrically exciting the gases used in a chemical vapor deposition process can reduce the sensitivity to temperature variations and allow deposition at lower temperatures. Some films produced by this technique are discussed, by Dragan B. Ilic, pg 24-27. IC fabrication.

Determining Thin-Film Stress, pg 25

Thin Gate Dielectric Films for VLSI MOS ICs: Thermal Silicon Oxynitride, by Tom Ekstedt, Hugh Grinolds, pg 26

[Author:] Dragan B. Ilic, pg 27

Electromigration: An Overview. The lifetime of the very thin and narrow conductors used in VLSI circuits is largely determined by the operating current density and metallic composition is discussed, by Paul P. Merchant, pg 28-31

[Author:] Paul P. Merchant, pg 30

SWAMI: A Zero-Encroachment Local Oxidation Process. Lateral oxidation limits density in oxide-isolated VLSI circuits. This process removes this limit by using a novel sequence of conventional processing techniques, by Kuang Yi Chiu, pg 31-32

[Author:] Kuang Yi Chiu, pg 32

Trench Isolation Technology, by Shang-yi Chiang, pg 33

High-Pressure Oxidation. Oxidation of silicon at atmosphere pressure requires considerable time and high temperatures that can be detrimental to the results of previous process steps. Increasing the oxidant gas pressure allows reduction of time and/or temperature for a desired oxide thickness, by William A. Brown, pg 34-36. IC fabrication.

[Author:] William [Bill] A. Brown, pg 36

September 1982 v.33 n.9

Cover: 1980B Oscilloscope talking to an HP 9826A Computer in a lab bench test

Oscilloscope Measurement System is Programmable and Autoranging. This new concept in oscilloscopes is a significant aid to measurement productivity, by William B. Risley, pg 3-4. 1980A/B.

[Author:] William [Bill] Risley, pg 4.

Designing the Oscilloscope Measurement System. The microprocessor brings the new dimension of programmability to the oscilloscope, by William E. Watry, Monte R. Campbell, Russell J. Harding, John R. Wilson, Wilhelm Taylor, pg 5-13. 1980A/B.

Custom Microcircuits Make the 1980A/B Possible, by William Duffy, John Meredith, Mike McTigue, pg 7

Allowing for system Expansion, by William Watry, pg 9

[Authors:] Wilhelm [Will] Taylor, John R. Wilson, William [Bill] E. Watry, Russell [Russ] J. Harding, Monte R. Campbell, pg 13

The Early History of the 1980A/B Oscilloscope Measurement System, by Zvonko Fazarinc, pg 14

The Design and Development of the 1980A/B at Colorado Springs, by William B. Risley, pg 14

Digital Waveform Storage for the Oscilloscope Measurement System. With this option, the oscilloscope measurement system can digitize, store, and transmit waveform data and receive waveform data from a computer to display, by Robert M. Landgraf, Eddie A. Evel, pg 15-20. 1980A/B.

[Authors:] Robert [Bob] M. Landgraf, Eddie [Ed] A. Evel, pg 20

Putting the Measurement System on the Bus. The oscilloscope is a latecomer to the world of interface-bus-compatible instruments, by Michael J. Karin, pg 21-24. 1980A/B.

[Author:] Michael [Mike] J. Karin, pg 24

Mechanical Design of the Oscilloscope Measurement System. Except for one printed circuit board, the same parts go into the two possible configurations, by John W. Campbell, pg 24-26. 1980A/B.

[Author:] John W. Campbell, pg 26

A High-Performance Bipolar Integrated Circuit Process. Ion-implanted collector, base, and emitter regions in an oxide-isolated structure result in compact high-performance bipolar transistors with reduced power consumption for use in high-density integrated circuits, by Irene V. Pecenco, Albert S. Wang, pg 27-29. IC fabrication.

[Authors:] Albert [Al] S. Wang, Irene V. Pecenco, pg 29

Synthesizer Accuracy for Unsynthesized Microwave Sources. This source synchronizer stabilizes microwave sources to provide accurate continuous-wave or swept-frequency outputs. It also provides a high-performance microwave counter, by V. Alan Barber, pg 30-36. 5344S.

[Author:] Vernon Alan [Al] Barber, pg 36

October 1982 v.33 n.10

Cover: 4145A Semiconductor Parameter Analyzer

Intelligent Instrument Streamlines dc Semiconductor Parameter Measurements. Used as a stand-alone instrument or as part of an automated test system, this smart curve tracer makes it easy to measure, analyze, graphically display, and store dc semiconductor parameters, by Fumiro Tsuruda, Kohichi Maeda, Teruo Takeda, Jin-ichi Ikemoto, pg 3-15. 4145A.

Typical Application of the 4145A Semiconductor Parameter Analyzer, pg 6-7

Extending the 4145A’s Output Range for Power Transistor Measurements, by Michitaka Obara, pg 10-11

[Authors:] Jin-ichi Ikemoto, Fumiro Tsuruda, pg 14

[Authors:] Kohichi Maeda, Teruo Takeda, pg 15

Programmable Stimulus/Measurement Units Simplify Device Test Setups. Each SMU can be electronically set to supply a specified voltage or current and to measure the associated current or voltage, by Susumu Takagi, Hiroshi Sakayori, Teruo Takeda, pg 15-20. 4145A.

[Authors:] Hiroshi Sakayori, Susumu Takagi, pg 20

HQMOS: A High-Performance NMOS Technology. Innovative processing methods are used to fabricate a scaled-down version of a standard n-channel MOS process, resulting in lower power consumption and higher speed, by Roger To-Hoi Szeto, Devereaux C. Chen, Horng-Sen Fu, Anders T. Dejenfelt, pg 21-27

[Authors:] Roger To-Hoi Szeto, Devereaux [Dev] C. Chen, Anders T. Dejenfelt, Horng-Sen Fu, pg 27

MOS Device and Process Design Using Computer Simulations. By using carefully developed computer models, IC device performance can be accurately simulated and the effects of process changes predicted, saving time and expense in new product design and development, by Soo-Young Oh, pg 28-32

[Author:] Soo-Young Oh, pg 32

November 1982 v.33 n.11

Cover: 5180A Waveform Recorder and the digitizer hybrid circuit

Waveform Recording with a High-Dynamic-Performance Instrument. This new waveform recorder digitizes and stores single-shot or repetitive signals. Its ten-bit, 20 MHz analog-to-digital converter delivers exceptional performance that is fully specified and characterized under realistic operating conditions, by Mark S. Allen, James L. Sorden, pg 3-9. 5180A.

Waveform Recording with the 5180A, pg 6-7

[Authors:] James [Jim] L. Sorden, Mark S. Allen, pg 9

Designing a Ten-Bit, Twenty-Megasample-per-second Analog-to-Digital Converter System. Custom hybrid and integrated circuits accurately sample and digitize a signal in forty nanoseconds, by Robert C. Rehner, Jr., Arthur S. Muto, Bruce E. Peetz, pg 9-20. 5180A.

Custom IC Processes, pg 15

A 40-MHz Input Amplifier, by Pat Deane, pg 18-19

[Authors:] Arthur [Art] S. Muto, Robert [Bob] C. Rehner, Jr., Bruce E. Peetz, pg 20

Measuring Waveform Recorder Performance. Realistic dynamic tests are the key to user confidence in the quality of the recorded waveshape, by J. Martin Neil, Bruce E. Peetz, Arthur S. Muto, pg 21-29. 5180A.

See Also: Correction: Figure 13 on page 26 in the article “Measuring Waveform Recorder Performance” has some incorrect labels, page 15 in the December 1982 issue

[Author:] J. Martin [Marty] Neil, pg 29

Time Base Requirements for a Waveform Recorder. Time base instability causes the time between samples to vary. Amplitude errors are the result, by Steven C. Bird, Jack A. Folchi, pg 29-34. 5180A.

[Authors:] Steven [Steve] C. Bird, Jack A. Folchi, pg 34

Display and Mass Storage for Waveform Recording. This waveform recorder companion provides functions needed in many applications, by Michael C. Detro, Christina M. Szeto, pg 34-36. 5181A.

[Authors:] Michael [Mike] C. Detro, Christina [Chris] M. Szeto, pg 36

December 1982 v.33 n.12

Cover: HP-86 Personal computer and the 7470A Plotter

Extended Memory and Modularity Are Added to the Series 80 Computer Family. HP’s newest Series 80 computers, the HP-86 and HP-87XM, provide memory capacities up to 640K bytes, different combinations of built-in interfaces, and for the HP-86, a modular system configuration, by Andrew W. Davidson, William R. Frolik, John T. Eaton, pg 3-7

[Authors:] John T. Eaton, William [Bill] R. Frolik, Andrew [Andy] W. Davidson, pg 7

Module Brings CP/M to HP’s Latest Series 80 Computers. This small computer system plugs into the HP-86 and HP-87XM Computers to allow them to use the wide variety of CP/M-compatible software available to the personal computer user, by Timothy V. Harper, pg 8-11. 82900A.

[Author:] Timothy [Tim] V. Harper, pg 11

Development of a Low-Cost, High-Quality Graphics Plotter. A novel plotting technology and a design for low manufacturing cost have resulted in an inexpensive X-Y plotter capable of fast, high-resolution, graphics output, by Majid Azmoon, pg 12-15. 7470A.

Manufacturing Team in the R&D Lab, by Bob Porcelli, pg 13

[Author:] Majid [Maj] Azmoon, pg 15

Correction: Figure 13 on page 26 in the article “Measuring Waveform Recorder Performance”, page 21 in the November 1982 issue, has some incorrect labels, pg 15

Controlling a Graphics Plotter with a Handheld Programmable Calculator. The plotter is the 7470A and the calculator is the HP-41C, by Robert M. Miller, Randy A. Coverstone, pg 16-18

[Authors:] Robert [Bob] M. Miller, Randy A. Coverstone, pg 18

Index: Volume 33 January 1982 through December 1982. PART 1: Chronological Index, pg 19-20. PART 2: Subject Index, pg 20-21. PART 3: Model Number Index, pg 22. PART 4: Author Index, pg 22.

Low-Cost Plotter Electronics Design. Custom servo ICs and gate array logic circuits allow a single-board design, by David M. Ellement, Neal J. Martini, Peter L. Ma, pg 23-26. 7470A.

Custom IC Electronics for a Low-Cost Plotter, by Peter Ma, pg 25

[Authors:] Peter L. Ma, David M. Ellement, pg 25

Plotter Drive Motor Encoder Design. This compact optical encoder is installed inside the drive motor housing, by Arthur K. Wilson, Daniel E. Johnson, pg 26-27. 7470A.

[Authors:] Arthur [Art] K. Wilson, Daniel [Dan] E. Johnson, pg 27

Graphics Plotter Mechanical Design for Performance and Reliability at Low Cost. A grit-wheel paper drive, low-mass pen carriage, and electronic limit sensing provide an elegant, simple and accurate plotting mechanism, by David C. Tribolet, Chuong C. Ta, Robert J. Porcelli, Richard M. Kemplin, David M. Petersen, pg 28-33. 7470A.

[Author:] David M. Petersen, pg 32

[Authors:] Robert [Bob] J. Porcelli, David [Dave] C. Tribolet, Chuong C. Ta, Richard [Dick] M. Kemplin, pg 33

An Improved ac Power Switch. Turning ac power on and off isn’t always as simple as it seems. Here’s an ac power controller that is safe, reliable, long-lived, digitally controlled, and interference-free, by Raymond A. Robertson, pg 34-40. 14570A.

Testing the 14570A, pg 38-39

[Author:] Raymond [Ray] A. Robertson, pg 40