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Method for determining an initial position in a navigation system

  • US 7,577,526 B2
  • Filed: 02/14/2006
  • Issued: 08/18/2009
  • Est. Priority Date: 02/16/2005
  • Status: Expired due to Fees
First Claim
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1. A method for determining an initial position in a navigation system, comprising the steps of:

  • computing a total number of global positioning system (GPS) satellites from which a received GPS signal has intensity greater than a threshold value;

    computing respective numbers of GPS satellites located in each of two regions from the total number of the GPS satellites, wherein the two regions are determined by dividing an area with respect to a road'"'"'s centerline; and

    determining an initial position of the navigation system according to a comparison result based on the respective numbers of GPS satellites in each of the two regions.

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