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Method and system for transferring content information and supplemental information relating thereto

  • US 6,209,092 B1
  • Filed: 01/27/1998
  • Issued: 03/27/2001
  • Est. Priority Date: 01/27/1997
  • Status: Expired due to Fees
First Claim
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1. A method of recording and reproducing content information and supplemental information relating thereto, in which:

  • an encoded signal representing the content information and a watermark pattern representing the supplemental information is recorded, a control signal is also recorded, representing a control pattern, the watermark pattern and the control pattern in combination constituting the supplemental information, and the watermark pattern corresponds to the result obtained by applying a one-way function to the control pattern.

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