×

Content Authentication and Recovery Using Digital Watermarks

  • US 20080276089A1
  • Filed: 06/12/2008
  • Published: 11/06/2008
  • Est. Priority Date: 11/08/2000
  • Status: Active Grant
First Claim
Patent Images

1. A computer storage medium on which are stored computer instructions causing a processor programmed thereby to:

  • decode an auxiliary signal imperceptibly embedded into a host signal, the host signal representing a first content object;

    decompress the decoded auxiliary signal to yield a signal representing a second content object; and

    compare the first and second content objects for perceptual similarity, in connection with authenticating the host signal.

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