3806668

Information

• Patent Grant
• 3806668

• References
• Source

• Patent Number

  3,806,668

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • H04N5/7605 - on discs or drums
  • H04N5/903 - using variable electrical capacitive recording
  • H04N5/91 - Television signal processing therefor

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 386 - Motion video signal processing for recording or reproducing