Method and apparatus for determining time for GPS receivers
US5945944A · kind A · utility
474Cited by
22References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus of determining the time for a global positioning system receiver is disclosed. Timing signals derived from a communication system, such as cellular phone transmission signals, are received by a GPS receiver and decoded to provide accurate time information. The timing signals may be in the form of synchronized events marked by timing indicators, or as system time information. The timing signals in combination with satellite position signals received by the GPS receiver are used to determine the position of the GPS receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.