System reactions to the detection of embedded watermarks in a digital host content
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United States of America Patent
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May 6, 2008
Grant Date -
Oct 26, 2006
app pub date -
Apr 24, 2006
filing date -
Apr 26, 2005
priority date (Note) -
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Abstract
Methods for adapting the operation of a system in response to the detection of embedded watermarks from a digital host content are provided. A digital host content is received and examined for the presence of watermarks. In response to the detection of embedded watermarks and in accordance with the value, type, density or spacing of the detected watermarks, one or more system reactions may take place. These reactions include conditionally allowing the system to resume its normal operation, prohibiting the system from resuming its normal operation, degrading the quality of the digital host content or changing the security status of the digital host content. In response to the extraction of weak watermarks that do not meet the desired system requirements, the extraction operation may be modified or extended to enable the detection of strong watermarks.
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