Multiple watermarks in content

Details Multiple watermarks in content Multiple watermarks in content

2007-09-04

2007-09-04

Couso, Yon J. (Department: 2624)

Image analysis

Applications

C358S003280

Reexamination Certificate

active

11420977

ABSTRACT:
Image, video, and/or audio data is encoded with at least first and second watermarks. In one implementation a method includes: receiving content; embedding a first watermark signal in the content; compressing the content; embedding a second watermark signal in the content. The first watermark signal and the second watermark signal are designed to respond differently to at least a first type of signal processing. Other implementations are also provided.

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