3469257

Information

• Patent Grant
• 3469257

• References
• Source

• Patent Number

  3,469,257

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1969
  55 years ago

• CPC

  • G05B19/351 - the positional error is used to control continuously the servomotor according to its magnitude
  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • G05B2219/41459 - Time counter and phase discriminator
  • H03M2201/01 - First edition
  • H03M2201/122 - Servo-systems for D/A conversion
  • H03M2201/126 - with auxiliary D/A conversion of the error signal
  • H03M2201/128 - using a servomotor as analogue generator
  • H03M2201/194 - Control systems
  • H03M2201/2372 - with intermediate conversion to phase or time of phase reversal
  • H03M2201/32 - Intermediate conversion to time interval type
  • H03M2201/4105 - Positive/negative indication
  • H03M2201/412 - representing linear position
  • H03M2201/4135 - Momentary value
  • H03M2201/4155 - Phase modulated carrier
  • H03M2201/4204 - positive/negative indication
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/4258 - Denominational
  • H03M2201/512 - Mechanical/electrical
  • H03M2201/8132 - Transistors
  • H03M2201/843 - Resolvers
  • H03M2201/844 - Servomotors

• US Classifications

  • 341 - Coded data generation or conversion
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems