Systems for and methods of determining likelihood of reference point identity duplication in a positioning system
First Claim
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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Abstract
Systems for and methods of determining likelihood of reference point identity duplication in a positioning system are disclosed. A method of determining a measure of likelihood that a designated identifier is shared by wireless devices includes determining reference points associated with any wireless device having a designated identifier. The reference points are a geographic position at which signals from any of the wireless devices were detected and/or wireless devices from which signals were also detected within a selected period of time during which the signals from any of the wireless devices having the designated identifier were detected. The method also includes determining statistical information about a temporal distribution of detection of signals of reference points, a spatial distribution of the reference points, and/or a cardinality of the reference points and determining a measure of likelihood that the designated identifier is shared by wireless devices is based on the statistical information.
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Citations
34 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for determining a measure of likelihood that a single designated identifier is shared by at least two wireless devices, the system comprising:
a tangible computer readable media including instructions that when executed by a computer system cause the computer system to; determine 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; determine 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 determine a measure of likelihood that the designated identifier is shared by at least two wireless devices based on the statistical information. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
Specification