SYSTEMS AND METHODS OF ASSISTED GPS
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United States of America Patent
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app pub date -
May 14, 2012
filing date -
Nov 14, 2007
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Abandoned
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Abstract
Embodiments of an improved assisted global positioning system (GPS) method and system are described. Wireless access points send assistance data to GPS receivers that are integrated into cellular chipsets and other chipsets. The access points may also act as fixed location references for differential GPS (DGPS) mobile stations. Errors caused by multipath travel of the GPS signals are reduced by using fixed location reference receivers.
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