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Methods and apparatus to count audience members

  • US 8,739,194 B2
  • Filed: 12/16/2011
  • Issued: 05/27/2014
  • Est. Priority Date: 06/18/2001
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • identifying a first audience member present in a statistically selected location at a first time, the statistically selected location comprising a receiver presenting first media in association with a source identification of the first media at the first time;

    incrementing a stored first count of a number of times the first audience member is in the statistically selected location during a day part corresponding to the first time, wherein the first count corresponds to the source identification of the first media tuned by the receiver at the first time;

    incrementing a stored tuning occasion count of a number of times the receiver in the statistically selected location was used during the day part, the stored tuning occasion count corresponding to the source identification of the first media;

    identifying a second audience member present in the statistically selected location at a second time, the receiver presenting second media in association with the source identification of the first media at the second time;

    incrementing a stored second count of a number of times the second audience member is in the statistically selected location during the day part, wherein the second count corresponds to the source identification of the first media;

    incrementing the stored tuning occasion count for the statistically selected location for the day part and the source identification of the first media;

    determining a probability that an unidentified audience member in the statistically selected location at a third time is the first audience member based on the first count, the second count, and the tuning occasion count; and

    incrementing a count associated with the first audience member based on a comparison of the probability to a threshold.

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