Digital watermark embedding method and equipment and record medium with digital watermark

Digital watermark embedding method and equipment and record medium with digital watermark

  • CN 1,371,215 A
  • Filed: 02/11/2002
  • Published: 09/25/2002
  • Est. Priority Date: 02/13/2001
  • Status: Active Application
First Claim
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1. data waterprint embedded method is used for the signal that produces according to ad hoc rules embedded as digital watermarking and comprises and it is characterized in that the processing that this method comprises is in the middle of the content (11) of numerical data:

  • With this content corresponding digital watermarking incipient stage predetermined time cycle (t 0) in effectively improve the intensity of digital watermarking;

    And This digital watermarking is embedded in the middle of this content.

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