Method and apparatus for determining time for GPS receivers
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United States of America Patent
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Aug 13, 2002
Issued Date -
N/A
app pub date -
Oct 30, 2000
filing date -
Mar 8, 1996
priority date (Note) -
In Force
status (Latency Note)
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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.
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