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LOCATION BASED TRACKING

  • US 20080268869A1
  • Filed: 04/24/2008
  • Published: 10/30/2008
  • Est. Priority Date: 04/26/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • transitioning from obtaining one or more position fixes using a first position determination method to obtaining one or more position fixes using a second position determination method automatically and in response to detection of a first change in an RF environment based, at least in part, on a history of attempted position fixes; and

    transitioning from obtaining one or more position fixes using said second position determination method to obtaining one or more position fixes using said first position determination method automatically and in response to detection of a second change in said RF environment.

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