Utilizing data reduction in steganographic and cryptographic systems

  • US 7,664,264 B2
  • Filed: 09/12/2006
  • Issued: 02/16/2010
  • Est. Priority Date: 03/24/1999
  • Status: Expired due to Fees
First Claim
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1. A method for analyzing a data signal that has been embedded with at least one digital watermark using a data reduction technique, said method comprising:

  • receiving the data signal;

    processing the data signal to detect information relative to the digital watermark;

    analyzing the detected information to determine if output of the data signal is authorized; and

    outputting said data signal if the detected information establishes that output is authorized.

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