Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 6, 2008
Patent Application Number
11452662
Date Filed
June 13, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
Steganographic signals or digital watermarks are detected from media signals. A media signal may represent audio, video or imagery. In one implementation, a method of detecting a digital watermark in a media signal is provided. The method includes receiving blocks of the media signal; buffering the blocks; screening the blocks for a presence of the digital watermark to identify a plurality of blocks likely to include the digital watermark based on a detection metric; combining the blocks that have been identified as being likely to include the digital watermark; and detecting the watermark from the combined blocks. Other implementations are provided as well.
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