Method and apparatus for determining the geographic location of a device
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United States of America Patent
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May 24, 2011
Grant Date -
Jun 24, 2010
app pub date -
Mar 4, 2010
filing date -
Sep 22, 2006
priority date (Note) -
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Abstract
A method and apparatus for determining the location of a device from signals provided by a plurality of satellites. A device receives a first plurality of signals comprising one signal from each of a first plurality of satellites and determines a first location of the device as a function of the first plurality of signals. The device then determines a second location thereof as a function of a second plurality of signals if the first location is not within a predetermined threshold. The second plurality of signals is a first subset of the first plurality of signals.
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