3449725

Information

• Patent Grant
• 3449725

• References
• Source

• Patent Number

  3,449,725

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • G01N21/27 - using photo-electric detection circuits for computing concentration
  • G01N30/8631 - Peaks
  • H03M2201/01 - First edition
  • H03M2201/14 - Scale factor modification
  • H03M2201/17 - Multiplexing
  • H03M2201/192 - Measuring systems
  • H03M2201/24 - Intermediate conversion to pulse frequency type
  • H03M2201/4135 - Momentary value
  • H03M2201/4212 - Serial
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/425 - Non-denominational
  • H03M2201/4266 - Decimal radix
  • H03M2201/4279 - Pure
  • H03M2201/51 - Analogue conversions
  • H03M2201/518 - with analogue feedback
  • H03M2201/532 - Specific type of non-linearity
  • H03M2201/535 - Maximum, minimum
  • H03M2201/60 - Fidelity improvement
  • H03M2201/6114 - Manual
  • H03M2201/6121 - Automatic
  • H03M2201/8128 - Diodes
  • H03M2201/8156 - Varistors
  • H03M2201/844 - Servomotors
  • H03M2201/848 - Relays

• US Classifications

  • 341 - Coded data generation or conversion
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems