Methods and apparatus to perform audio watermarking and watermark detection and extraction
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United States of America Patent
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Jul 12, 2022
Grant Date -
Mar 7, 2019
app pub date -
Nov 6, 2018
filing date -
Oct 24, 2008
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Abstract
Example methods and apparatus to audio watermarking and watermark detection and extraction are disclosed herein. Example methods disclosed herein include determining a first watermark symbol encoded in encoded audio samples and storing the first watermark symbol in tangible memory. Disclosed example methods also include determining a second watermark symbol encoded in the encoded audio samples and storing the second watermark symbol in the tangible memory. Disclosed example methods further include, in response to determining that the first watermark symbol matches the second watermark symbol, outputting the first watermark symbol.
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