3790886

Information

• Patent Grant
• 3790886

• References
• Source

• Patent Number

  3,790,886

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1974
  50 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • G01R1/30 - Structural combination of electric measuring instruments with basic electronic circuits
  • G01R27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom
  • H03M2201/01 - First edition
  • H03M2201/14 - Scale factor modification
  • H03M2201/192 - Measuring systems
  • H03M2201/2344 - the input signal or its derivative varying continuously
  • H03M2201/24 - Intermediate conversion to pulse frequency type
  • H03M2201/4105 - Positive/negative indication
  • H03M2201/4135 - Momentary value
  • H03M2201/415 - Amplitude modulated carrier
  • H03M2201/4204 - positive/negative indication
  • H03M2201/4212 - Serial
  • H03M2201/4225 - Parallel
  • H03M2201/425 - Non-denominational
  • H03M2201/4266 - Decimal radix
  • H03M2201/4279 - Pure
  • H03M2201/51 - Analogue conversions
  • H03M2201/514 - Electrical/other electrical
  • H03M2201/52 - Digital conversions
  • H03M2201/523 - between different combination codes between different radices
  • H03M2201/60 - Fidelity improvement
  • H03M2201/6114 - Manual
  • H03M2201/6121 - Automatic
  • H03M2201/8112 - Gaseous tubes
  • H03M2201/8128 - Diodes
  • H03M2201/8132 - Transistors
  • H03M2201/8144 - Zener diodes
  • H03M2201/8156 - Varistors
  • H03M2201/8192 - Photoelectric devices
  • H03M2201/847 - Switches

• US Classifications

  • 324 - Electricity: measuring and testing
  • 341 - Coded data generation or conversion