3569821

Information

• Patent Grant
• 3569821

• References
• Source

• Patent Number

  3,569,821

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  54 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • H03M2201/01 - First edition
  • H03M2201/122 - Servo-systems for D/A conversion
  • H03M2201/192 - Measuring systems
  • H03M2201/30 - D/A converters
  • H03M2201/3105 - Successive addition or subtraction of selected values
  • H03M2201/3115 - Simultaneous addition or subtraction of selected values
  • H03M2201/3131 - Direct selection from all possible values
  • H03M2201/3168 - Resistors
  • H03M2201/4135 - Momentary value
  • H03M2201/415 - Amplitude modulated carrier
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/4266 - Decimal radix
  • H03M2201/52 - Digital conversions
  • H03M2201/522 - Non-denominational/denominational Pure/combination code
  • H03M2201/60 - Fidelity improvement
  • H03M2201/6121 - Automatic
  • H03M2201/847 - Switches
  • H03M2201/848 - Relays

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 324 - Electricity: measuring and testing
  • 341 - Coded data generation or conversion