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SYSTEMS AND METHODS FOR USING ENVIRONMENTAL INFORMATION IN A HYBRID POSITIONING SYSTEM

  • US 20090303119A1
  • Filed: 06/05/2009
  • Published: 12/10/2009
  • Est. Priority Date: 06/06/2008
  • Status: Abandoned Application
First Claim
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1. 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 comprising:

  • 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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