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EXTRACTING AUXILIARY DATA FROM A HOST SIGNAL

  • US 20100058065A1
  • Filed: 12/05/2007
  • Published: 03/04/2010
  • Est. Priority Date: 12/11/2006
  • Status: Abandoned Application
First Claim
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1. A method of extracting auxiliary data from a host signal, the method comprising:

  • periodically (21) with a predetermined first period search (22) a first section (33A-33C) of the host signal for a first watermark (34);

    upon detection (23) of the first watermark, search the host signal for a second watermark (35).

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