Systems for and methods of determining likelihood of atypical transmission characteristics of reference points in a positioning system
US9014715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems for and methods of determining likelihood of atypical transmission characteristics of reference points in a positioning system are disclosed. A method of determining a measure of likelihood that a designated wireless device exhibits signal transmission characteristics atypical of a wireless device of a type matching the designated device includes determining reference points associated with the designated device, which are a geographic position at which signals from the designated device were detected and/or another wireless device from which signals were also detected by a receiver within a selected period of time during which the signals from the designated device were detected. The method also includes determining statistical measures of a spatial distribution of the reference points and determining a measure of likelihood that the designated device exhibits signal transmission characteristics that are atypical of a wireless device of a type matching the designated device based on the statistical measures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.