Local clock frequency calibration using low earth orbit (LEO) satellites
US7859455B2 · kind B2 · utility
5Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2009 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Jan 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/235
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various techniques are provided for calibrating a frequency of a local clock using a satellite signal. In one example, a method of transferring frequency stability from a satellite to a device includes receiving a signal from the satellite. The method also includes determining a code phase from the satellite signal. The method further includes receiving aiding information. In addition, the method includes calibrating a frequency of a local clock of the device using the code phase and the aiding information to substantially synchronize the local clock frequency with a satellite clock frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.