3221170

Information

• Patent Grant
• 3221170

• References
• Source

• Patent Number

  3,221,170

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • G01R13/405 - using a plurality of active, i.e. light emitting
  • G01R13/407 - using a plurality of passive display elements
  • H05B33/08 - Circuit arrangements not adapted to a particular application
  • H05B33/12 - Light sources with substantially two-dimensional radiating surfaces
  • H03M2201/01 - First edition
  • H03M2201/192 - Measuring systems
  • H03M2201/2305 - in which a reference signal sweeps through the range of possible values
  • H03M2201/2333 - in which the reference signal is produced from the digital generator using an auxiliary D/A converter
  • H03M2201/3115 - Simultaneous addition or subtraction of selected values
  • H03M2201/3168 - Resistors
  • H03M2201/4135 - Momentary value
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/425 - Non-denominational
  • H03M2201/4279 - Pure
  • H03M2201/51 - Analogue conversions
  • H03M2201/53 - Non-linear conversions
  • H03M2201/532 - Specific type of non-linearity
  • H03M2201/8128 - Diodes
  • H03M2201/8192 - Photoelectric devices
  • Y02B20/325 - Specially adapted circuits

• US Classifications

  • 250 - Radiant energy
  • 315 - Electric lamp and discharge devices: systems
  • 340 - Communications: electrical
  • 345 - Computer graphics processing and selective visual display systems