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GPS receiver with cross-track hold

  • US 6,125,325 A
  • Filed: 07/25/1997
  • Issued: 09/26/2000
  • Est. Priority Date: 04/25/1996
  • Status: Expired due to Term
First Claim
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1. A method of determining position information from GPS satellites comprising the steps of:

  • selecting a route to be traveled;

    tracking one or more GPS satellites with a GPS receiver mounted for motion along the route;

    operating in cross track hold by estimating the route specific cross track information; and

    deriving route specific along track, altitude and satellite time information from the one or more GPS satellites being tracked and the estimated cross track information.

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