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Digital watermarks as a communication channel in documents for controlling document processing devices

  • US 20020176116A1
  • Filed: 04/11/2002
  • Published: 11/28/2002
  • Est. Priority Date: 04/12/2001
  • Status: Abandoned Application
First Claim
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1. A document carrying a document control instruction in a digital watermark signal embedded on the document, the document control instruction including an instruction for controlling fax transmission or reproduction of the document.

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