Methods and apparatuses for reducing time to estimate a position using a satellite positioning system
US8330652B2 · kind B2 · utility
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27Claims
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Assignee
Inventor
Key dates
| Filing date | Nov 4, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Oct 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/252
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatuses are provided that may be implemented in various electronic devices to possibly reduce a first-time-to-fix and/or otherwise increase the performance or efficiency of a device in determining its current estimated position. In some embodiments, it may be determined whether current estimated position is valid based, at least in part, on pseudorange measurement information and pseudorange predicted information, and such determining may include obtaining a sum-of-squares of an a-posteriori measurement residual associated with the pseudorange measurement information and the pseudorange predicted information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.