System and method for snapping a user location to a landmark of known location
US7822426B1 · kind B1 · utility
134Cited by
9References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jun 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In one embodiment, an initial estimated location of a mobile electronic device is determined using a location determination method (LDM). An accuracy for the LDM is determined. An initial set of landmarks is determined based upon the initial estimated location and the determined accuracy. For each landmark in the initial set of landmarks, a likelihood is calculated that the mobile electronic device is located about that landmark. A landmark from the initial set of landmarks is selected based on the likelihoods. The location of the mobile electronic device is set to a known location of the selected landmark.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.