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Substituting information based on watermark-enable linking

  • US 6,917,691 B2
  • Filed: 05/29/2003
  • Issued: 07/12/2005
  • Est. Priority Date: 12/28/1999
  • Status: Expired due to Term
First Claim
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1. A method to provide substitute data for original data found in a printed document, the substitute data being provided in a copy of the printed document, wherein the printed document comprises steganographic indicia including an identifier, said method comprising the steps of:

  • receiving optically captured data corresponding to at least a portion of the printed document;

    analyzing the optically captured data to obtain the identifier;

    communicating with a data repository, the data repository including the substitute data, wherein the substitute data is identified at least in part by the identifier;

    receiving the substitute data from the data repository; and

    when generating a copy of the printed document, substituting the substitute data for the original data.

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