METHOD AND APPARATUS FOR IMPROVING GPS RECEIVER ACCURACY USING AN EMBEDDED MAP DATABASE
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United States of America Patent
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Issued Date -
Oct 6, 2011
app pub date -
Mar 23, 2009
filing date -
Mar 23, 2009
priority date (Note) -
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Abstract
The present invention is related to location positioning systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation solutions. According to a first aspect, cartography information from a map database embedded within the GPS receiver is integrated into the position calculations performed by the GPS receiver. According to another aspect, the map database embedded within the GPS receiver is optimized for the purpose of improving the accuracy of the GPS receiver's position calculations.
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