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Extended definition television systems

  • US 5,003,377 A
  • Filed: 01/12/1989
  • Issued: 03/26/1991
  • Est. Priority Date: 01/12/1989
  • Status: Expired due to Fees
First Claim
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1. A method of adding information to a broadcast motion picture signal, the method comprising:

  • decomposing sequential frames of said motion picture into luminance and chrominance values;

    generating a chrominance signal from said chrominance values at a fraction of the rate of said motion picture signal frames; and

    modulating the generated chrominance signal to encode additional information.

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