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Table of Contents

March 3, 1997

Design Features

  • Time, position, and velocity? Just ask your GPS chip set
    GPS is poised to invade everything from cellular phones to backpacks with new chip sets that implement a complete receiver using just two ICs plus memory. Chip-set prices, meanwhile, have hit the $30 mark, making GPS suitable in virtually any application that needs position data, including remote embedded applications that need only an accurate clock or calendar.
    --Maury Wright, Technical Editor

  • Automatic speech recognition lets machines listen and comprehend
    Specialized chips, new technologies, and voice-activated user interfaces are making automatic speech recognition more accurate, user-friendly, and inexpensive than ever before.
    --Stephen Kempainen, Technical Editor

  • A sneak preview: products from the Embedded Systems Conference
    Plenty of new products will be on display at the upcoming Embedded Systems Conference. More than 120 companies will be exhibiting development tools, single-board computers, mPs, microcontrollers, and more. Technical sessions will include more than 75 courses and tutorials.

  • Genetic algorithms: programs that boggle the mind
    Genetic algorithms can explore a greater number of potential answers and converge on optimal results faster and more efficiently than can other search methods.
    --Clive "Max" Maxfield, Intergraph Computer Systems

  • The right test equipment simplifies measuring BER in burst-mode systems
    Without the right equipment, experimentally verifying burst-mode receiver designs can be difficult. An example demonstrates a new method of determining such receivers' error performance. The discussion explains the equipment setup and the measured results.
    --Lutz Kristen, Hewlett-Packard
  • Power-supply reliability: a practical improvement guide
    The true path to high reliability is a well-managed process that starts in the product's definition phase and continues long after the first shipment.
    --Karl H Pflueger, IBM Germany
  • Leading Edge

  • PC-based instruments offer packaging options
  • Fast-running signals need not fear "terminators"
  • CMOS-process technology deepens deep submicron
  • 1-GHz color DSOs offer deeper memory and lower cost
  • Fast, flexible, dense FPGAs zero in on gate arrays
  • The players in the µP market
  • Processor and chip-set module targets mobile computing
  • ASIC library contains cells and compilers
  • Embedded intelligence makes low-cost DSO/DMM easy to use
  • Hands-on workbook helps inventors protect their ideas
  • -------------------------------- EDN Europe --------------------------------

    Design Ideas

  • Simple method measures duty cycle
  • Precision rectifier reduces ripples
  • Pulse-width trimmer outdoes one-shots
  • Autopilot directs 8255 external buffers
  • Frequency comparator draws 8 µA
  • High-power amp includes disable
  • Serial port drives low-cost, three-wire DACs
  • Circuit tests power-outage susceptibility
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    Products

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