Audio data receipt/exposure measurement with code monitoring and signature extraction
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United States of America Patent
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May 22, 2007
Grant Date -
Apr 1, 2004
app pub date -
Sep 27, 2002
filing date -
Sep 27, 2002
priority date (Note) -
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Abstract
Systems and methods are provided for gathering audience measurement data relating to receipt of and/or exposure to audio data by an audience member. Audio data is monitored to detect a monitoring code. Based on detection of the monitoring code, a signature characterizing the audio data is extracted.
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