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Interaction analyzer

  • US 7,642,920 B2
  • Filed: 06/18/2007
  • Issued: 01/05/2010
  • Est. Priority Date: 06/18/2007
  • Status: Expired due to Fees
First Claim
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1. A method of analyzing participant activity, the method comprising:

  • receiving signals from a plurality of identification units each associated with a different one of a plurality of participants;

    determining locations of each of the participants based on the received signals and associating a timestamp with the determined locations;

    storing the determined locations and the associated timestamps; and

    operating a computing device to analyze the stored locations to determine the activity of the participants, including determining that at least two participants have interacted with one another in response to identifying that the stored locations of the at least two participants were in close proximity to one another with associated timestamps that overlap for at least a predetermined amount of time.

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