Signal detector employing correlation analysis of non-uniform and disjoint sample segments
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United States of America Patent
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Feb 21, 2006
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N/A
app pub date -
Aug 19, 2003
filing date -
Mar 30, 1999
priority date (Note) -
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Abstract
A wireless communication device (e.g., a cellular telephone) includes one transceiver for voice or data communication and a global positioning system (GPS) receiver a signal for receiving a GPS signal from the GPS satellites. The GPS receiver does not receive the GPS signal when the transceiver is transmitting, so that the GPS signal receives may consist of multiple signal segments of various duration and various delays. A method is provided which combine correlations of these multiple signal segments cumulatively until a sufficiently signal-to-noise ratio is achieved to allow detection of the transmitted signal of one or more of the GPS satellites.
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