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SYSTEMS AND METHODS FOR GATHERING AUDIENCE MEASURMENT DATA

  • US 20100049474A1
  • Filed: 11/03/2009
  • Published: 02/25/2010
  • Est. Priority Date: 07/26/2002
  • Status: Active Grant
First Claim
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1. In an audience member user system reproducing audio data as sound for an audience member, a method comprising encoding audience measurement data audio data already encoded with different audience measurement data, and reproducing the encoded audio data as sound for the audience member.

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