Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Geoffrey B. Rhoads0
Ammon E. Gustafson0
Date of Patent
September 4, 2007
0Patent Application Number
114209770
Date Filed
May 30, 2006
0Patent Citations Received
0
Patent Primary Examiner
Patent 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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