Audio encoding to convey auxiliary information, and media embodying same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 15, 2013
Grant Date -
Jun 5, 2008
app pub date -
Oct 26, 2007
filing date -
Nov 18, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
Methods of processing audio to convey auxiliary information hidden therein are provided. Various arrangements are disclosed. One alters data representing audio to include a sequence of bits of auxiliary information. The altering is based on a carrier signal and corresponding to the sequence of bits, and is based on a perceptibility threshold that varies within the data representing audio. Other arrangements are provided as well.
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