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Method and apparatus for locating position of a GPS device

  • US 7,158,883 B2
  • Filed: 01/20/2005
  • Issued: 01/02/2007
  • Est. Priority Date: 04/23/1999
  • Status: Expired due to Term
First Claim
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1. A method of locating position of a Global Positioning System (GPS) device, comprising:

  • generating a position request at a web portal;

    receiving, in response to the position request, an approximate position of the GPS device at the web portal from a wireless carrier;

    transmitting an initialization packet request for the approximate position to a server;

    receiving an initialization packet at the web portal from the server, the initialization packet including a satellite orbit model configured for the approximate position;

    forwarding the initialization packet to the GPS device via the wireless carrier;

    determining pseudo-noise code phase information at the GPS device using the satellite orbit model in the initialization packet;

    receiving the pseudo-noise code phase information at the web portal from the GPS device via the wireless carrier;

    forwarding the pseudo-noise code phase information to the server;

    computing position of the GPS device at the server using the pseudo-noise code phase information; and

    receiving the position at the web portal from the server.

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