Method and apparatus for controlling power supply for speedy acquisition of GPS signal, and GPS receiver having the apparatus
US7812765B2 · kind B2 · utility
2Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Oct 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a global positioning system (GPS) receiver which speedily acquires a GPS signal, and a method and apparatus for controlling power supply to the GPS receiver. The method includes when an external power is detected, supplying the external power to a GPS power supply unit and executing a GPS initial information search of a GPS module by enabling the GPS power supply unit using an external power detect signal, and when a power switch is turned on, executing a GPS information based communication of the GPS module by executing a navigation program while the GPS power supply unit is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.