3506818

Information

• Patent Grant
• 3506818

• References
• Source

• Patent Number

  3,506,818

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1970
  54 years ago

• CPC

  • G06K9/0053 - by analysing the shape of a waveform
  • G06G7/186 - using an operational amplifier comprising a capacitor or a resistor in the feedback loop
  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • H03M2201/01 - First edition
  • H03M2201/192 - Measuring systems
  • H03M2201/2311 - using a continuously varying analogue reference signal
  • H03M2201/4204 - positive/negative indication
  • H03M2201/4212 - Serial
  • H03M2201/4233 - Bivalued
  • H03M2201/512 - Mechanical/electrical
  • H03M2201/518 - with analogue feedback
  • H03M2201/534 - Logarithmic, exponential
  • H03M2201/537 - Integration
  • H03M2201/60 - Fidelity improvement
  • H03M2201/6121 - Automatic
  • H03M2201/8128 - Diodes
  • H03M2201/91 - Theory

• US Classifications

  • 708 - Electrical computers: arithmetic processing and calculating
  • 073 - Measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 341 - Coded data generation or conversion
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • 702 - Data processing: measuring, calibrating, or testing