3555540

Information

• Patent Grant
• 3555540

• References
• Source

• Patent Number

  3,555,540

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  54 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • G01V1/245 - Amplitude control for seismic recording
  • H03M2201/01 - First edition
  • H03M2201/14 - Scale factor modification
  • H03M2201/16 - Coarse and fine conversions
  • H03M2201/17 - Multiplexing
  • H03M2201/192 - Measuring systems
  • H03M2201/30 - D/A converters
  • H03M2201/3115 - Simultaneous addition or subtraction of selected values
  • H03M2201/3131 - Direct selection from all possible values
  • H03M2201/3168 - Resistors
  • H03M2201/4135 - Momentary value
  • H03M2201/4212 - Serial
  • H03M2201/4225 - Parallel
  • H03M2201/4262 - Binary radix
  • H03M2201/4279 - Pure
  • H03M2201/534 - Logarithmic, exponential
  • H03M2201/6121 - Automatic
  • H03M2201/648 - Output smoothing
  • H03M2201/812 - Cathode ray tubes

• US Classifications

  • 341 - Coded data generation or conversion
  • 708 - Electrical computers: arithmetic processing and calculating