2537427

Information

• Patent Grant
• 2537427

• References
• Source

• Patent Number

  2,537,427

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1951
  74 years ago

• CPC

  • G05B19/231 - the positional error is used to control continuously the servomotor according to its magnitude
  • H03K5/26 - the characteristic being duration, interval, position, frequency, or sequence
  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • H03M2201/01 - First edition
  • H03M2201/126 - with auxiliary D/A conversion of the error signal
  • H03M2201/128 - using a servomotor as analogue generator
  • H03M2201/194 - Control systems
  • H03M2201/2133 - with directional discrimination
  • H03M2201/2185 - Photoelectric
  • H03M2201/24 - Intermediate conversion to pulse frequency type
  • H03M2201/3115 - Simultaneous addition or subtraction of selected values
  • H03M2201/3131 - Direct selection from all possible values
  • H03M2201/3168 - Resistors
  • H03M2201/4105 - Positive/negative indication
  • H03M2201/4125 - representing angular position
  • H03M2201/4135 - Momentary value
  • H03M2201/415 - Amplitude modulated carrier
  • H03M2201/4185 - Frequency modulated pulses
  • H03M2201/4204 - positive/negative indication
  • H03M2201/4212 - Serial
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/425 - Non-denominational
  • H03M2201/4262 - Binary radix
  • H03M2201/4279 - Pure
  • H03M2201/8108 - Vacuum tubes
  • H03M2201/8192 - Photoelectric devices
  • H03M2201/844 - Servomotors
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]

• US Classifications

  • 318 - Electricity: motive power systems
  • 235 - Registers
  • 250 - Radiant energy
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 341 - Coded data generation or conversion
  • 409 - Gear cutting, milling, or planing