Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brett T. Hannigan0
Brett Alan Bradley0
Hugh L. Brunk0
Date of Patent
November 1, 2011
0Patent Application Number
125823980
Date Filed
October 20, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The presently claimed invention relates generally to digital watermarking of data, e.g., representing video or audio. One claim recites a method including: obtaining data representing video or audio; using a multi-purpose electronic processor programmed for: transforming the data into a transform domain, analyzing the transformed data to identify a plurality of transform coefficients according to predetermined criteria, and altering the identified plurality of transform coefficients to carry a digital watermark; and analyzing the data to determine a baseline state for the digital watermark. Of course, other combinations and claims are provided too.
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