3772465

Information

• Patent Grant
• 3772465

• References
• Source

• Patent Number

  3,772,465

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1973
  52 years ago

• CPC

  • H04N9/75 - Chroma key
  • G03B31/02 - in which sound track is on a moving-picture film
  • G03C5/12 - Cinematrographic processes of taking pictures or printing
  • H04N5/262 - Studio circuits
  • H04N5/84 - using optical recording

• US Classifications

  • 382 - Image analysis
  • 348 - Television
  • 352 - Optics: motion pictures
  • 355 - Photocopying
  • 386 - Motion video signal processing for recording or reproducing