Systems for and methods of determining likelihood of relocation of reference points in a positioning system
US8983504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2014 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems for and methods of determining likelihood of relocation of reference points in a positioning system are disclosed. A method of determining a measure of likelihood that an estimated geographic location of a designated wireless device is not its accurate present location includes determining a set of reference points associated with the device, which are a geographic position at which signals from the device were detected and/or other devices having a relationship with the designated device. The existence of the relationship is based on the devices being within signal reception range of a same position within a selected period of time. The method includes retrieving attributes of the reference points and/or of the relationships and determining a measure of likelihood that an estimated geographic location associated with the designated device is not its present location based on the attributes of the reference points of the set and/or of the relationships.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.