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Generated January 20, 2018

Encoding multiple messages in audio data and detecting same

Patent Number: 6,845,360

Patent Information

Abstract
Systems and methods are provided for encoding and decoding multiple messages in audio data. The messages each comprise a sequence of message symbols each comprising a combination of substantially single-frequency components. At least some of the message symbols in one of the messages coexist with at least some of the symbols of another one of the messages along a time base of the audio data.
Patent Number: 6,845,360
Issue Date: 2005-01-18

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Citations

Patents cited by this patent

Patent Title
6,754,633 Encoding a code signal into an audio or video signal
6,424,939 Method for coding an audio signal
6,175,627 Apparatus and method for embedding and extracting information in analog signals using distributed signal features
6,154,484 Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
5,945,932 Technique for embedding a code in an audio signal and for detecting the embedded code
5,848,391 Method subband of coding and decoding audio signals using variable length windows

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