2878434

Information

• Patent Grant
• 2878434

• References
• Source

• Patent Number

  2,878,434

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1959
  65 years ago

• CPC

  • G05B19/231 - the positional error is used to control continuously the servomotor according to its magnitude
  • 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
  • H03M2201/3105 - Successive addition or subtraction of selected values
  • 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
  • H03M2201/4204 - positive/negative indication
  • H03M2201/4212 - Serial
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/425 - Non-denominational
  • H03M2201/4262 - Binary radix
  • H03M2201/4279 - Pure
  • H03M2201/53 - Non-linear conversions
  • H03M2201/532 - Specific type of non-linearity
  • H03M2201/8108 - Vacuum tubes
  • H03M2201/8192 - Photoelectric devices
  • H03M2201/844 - Servomotors

• US Classifications

  • 318 - Electricity: motive power systems
  • 341 - Coded data generation or conversion