Always-on satellite positioning receiver
US7375682B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2006 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/29
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for establishing a position of a device is disclosed. The method generally includes the steps of (A) receiving an input signal from a receiver listening to a plurality of satellites in a positioning system, (B) calculating (i) a plurality of estimated Doppler shifts of the satellites, (ii) an estimated position of the device and (iii) an estimated velocity of the device, (C) generating a plurality of pseudo-ranges in an intermediate signal based on all of (i) the input signal, (ii) the estimated Doppler shifts, (iii) the estimated position and (iv) the estimated velocity and (D) generating the position in an output signal based on the pseudo-ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.