×

METHODS AND APPARATUS FOR EMBEDDING WATERMARKS

  • US 20100046795A1
  • Filed: 11/05/2009
  • Published: 02/25/2010
  • Est. Priority Date: 06/13/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method for embedding a watermark comprising:

  • identifying a transform coefficient associated with a compressed digital data stream;

    obtaining a mantissa code; and

    modifying the transform coefficient based on the mantissa code to embed the watermark.

View all claims
  • 11 Assignments
Timeline View
Assignment View
    ×
    ×