2820937

Information

• Patent Grant
• 2820937

• References
• Source

• Patent Number

  2,820,937

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1958
  67 years ago

• CPC

  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion
  • H03M2201/01 - First edition
  • H03M2201/16 - Coarse and fine conversions
  • H03M2201/194 - Control systems
  • H03M2201/198 - Computing systems
  • H03M2201/31 - Selection, addition or subtraction of quantisation values
  • H03M2201/3157 - Specific kinds of quantisation values
  • H03M2201/4125 - representing angular position
  • H03M2201/4225 - Parallel
  • H03M2201/4233 - Bivalued
  • H03M2201/4266 - Decimal radix
  • H03M2201/4279 - Pure
  • H03M2201/518 - with analogue feedback
  • H03M2201/842 - Synchro
  • H03M2201/844 - Servomotors
  • H03M2201/847 - Switches
  • H03M2201/848 - Relays
  • H03M2201/853 - Reduction gearings
  • H03M2201/856 - Shaft couplings
  • Y10T82/142 - with workpiece gauge
  • 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
  • 082 - Turning
  • 341 - Coded data generation or conversion
  • 409 - Gear cutting, milling, or planing