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.