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Encoding and decoding digital data in a video format

  • US 4,387,406 A
  • Filed: 10/31/1980
  • Issued: 06/07/1983
  • Est. Priority Date: 10/31/1980
  • Status: Expired due to Term
First Claim
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1. A method for encoding digital data into a video format having a luminance signal and a chrominance signal, the method comprising the steps of:

  • generating a first chrominance value, the first chrominance value being a selected one of a predetermined set of chrominance values which corresponds to digital data to be encoded;

    generating a second chrominance value, the second chrominance value being another one of the predetermined set of chrominance values different from the first chrominance value;

    generating a chrominance signal having the first chrominance value for a first period of time and the second chrominance value for a second period of time immediately following the first period; and

    generating a luminance signal having a first predetermined luminance value for the first period and a second predetermined luminance value for the second period.

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