SYSTEMS AND METHODS FOR USING ENVIRONMENTAL INFORMATION IN A HYBRID POSITIONING SYSTEM
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Jun 5, 2009
filing date -
Jun 6, 2008
priority date (Note) -
Abandoned
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Abstract
This disclosure describes systems and methods for using environmental information in a hybrid positioning system. Some embodiments relate to a method for determining the position of a WLAN and satellite positioning system enabled device using characteristics of the environment in which the device is located, the method can include detecting WLAN APs in range of the device, obtaining environmental characteristics from a reference database based on the WLAN APs detected by the device, and determining whether to use the WLAN or satellite positioning system based on the environmental characteristics.
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