3577056

Information

• Patent Grant
• 3577056

• References
• Source

• Patent Number

  3,577,056

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1971
  53 years ago

• CPC

  • H04N5/78 - using magnetic recording
  • G05D3/186 - using clutch or brake
  • H02P7/2913 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
  • Y10S388/903 - Protective
  • Y10S388/922 - Tuned or resonant circuit

• US Classifications

  • 388 - Electricity: motor control systems
  • 386 - Motion video signal processing for recording or reproducing