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Systems for and methods of determining likelihood of reference point identity duplication in a positioning system

  • US 8,630,657 B2
  • Filed: 06/09/2011
  • Issued: 01/14/2014
  • Est. Priority Date: 06/11/2010
  • Status: Active Grant
First Claim
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1. A method of determining a measure of likelihood that a single designated identifier is shared by at least two wireless devices, the method comprising:

  • determining a set of one or more reference points associated with any wireless device having a designated identifier, one or more of the reference points being at least one of (i) a geographic position at which signals from any of the wireless devices having the designated identifier were detected and (ii) another wireless device from which signals were also detected by a receiver within a selected period of time during which the signals from any of the wireless devices having the designated identifier were detected by the receiver;

    determining statistical information about at least one of (i) a temporal distribution of times of detection of signals of reference points of the set, (ii) a spatial distribution of the reference points, and (iii) a cardinality of the set or at least one subset of the reference points; and

    determining a measure of likelihood that the designated identifier is shared by at least two wireless devices based on the statistical information.

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