Steganographic method and device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 1, 2013
Grant Date -
Mar 24, 2011
app pub date -
Oct 27, 2010
filing date -
Jun 7, 1995
priority date (Note) -
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Abstract
An apparatus and method for encoding and decoding additional information into a stream of digitized samples in an integral manner. The information is encoded using special keys. The information is contained in the samples, not prepended or appended to the sample stream. The method makes it extremely difficult to find the information in the samples if the proper keys are not possessed by the decoder. The method does not cause a significant degradation to the sample stream. The method is used to establish ownership of copyrighted digital multimedia content and provide a disincentive to piracy of such material.
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