Extended range high sensitivity SPS positioning receiver
US7498983B2 · kind B2 · utility
1Cited by
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11Claims
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Key dates
| Filing date | Feb 23, 2006 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/243
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A roving extended range high sensitivity satellite positioning system receiver provides position fixes in adverse signal conditions as low as minus 150 dbm and with as few as three satellites by measuring the bit phase of the navData message and the codephase, and finding a simultaneous solution. Previous position fixes that were obtained in the vicinity by earlier rovers are deposited in an indexed database for consultation. A cellular phone system can be used to simply communicate the current identity codes and their database entries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.