Method and apparatus for determining time for GPS receivers

Details Method and apparatus for determining time for GPS receivers Method and apparatus for determining time for GPS receivers

1999-06-29

2000-11-21

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

34235706, H04B 7185, G01S 502

Patent

active

061509809

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.

REFERENCES:
patent: 5587715 (1996-12-01), Lewis

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