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USING MAGNETOMETER WITH A POSITIONING SYSTEM

  • US 20110063167A1
  • Filed: 09/15/2009
  • Published: 03/17/2011
  • Est. Priority Date: 09/15/2009
  • Status: Abandoned Application
First Claim
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1. A method comprising:

  • determining an approximate latitude of a mobile station using a mobile station processor based on at least one feature of the Earth'"'"'s magnetic field measured by the mobile station;

    determining an approximate longitude of the mobile station using the mobile station processor; and

    storing the approximate latitude and the approximate longitude and using the approximate latitude and the approximate longitude in the search for satellites in a satellite positioning system (SPS) that are visible to the mobile station during search and acquisition of satellite signals for a position fix.

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