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Methods and apparatus for embedding and recovering watermarking information based on host-matching codes

  • US 20030014634A1
  • Filed: 01/31/2002
  • Published: 01/16/2003
  • Est. Priority Date: 04/06/2001
  • Status: Active Grant
First Claim
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1. A method for embedding watermarking information, comprising:

  • providing a host signal;

    providing data to be embedded in the host signal;

    associating distinct input data strings of said data with distinct code sets;

    selecting codes from the associated code sets to represent said input data strings based on an analysis of the host signal; and

    embedding said codes into the host signal to provide a watermarked signal.

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