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GPS-BASED POSITIONING SYSTEM FOR MOBILE GPS TERMINALS

  • US 20090033553A1
  • Filed: 02/18/2008
  • Published: 02/05/2009
  • Est. Priority Date: 04/05/2001
  • Status: Active Grant
First Claim
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1. A Global Positioning System (GPS)-based positioning system comprising:

  • (a) a GPS terminal, including;

    (i) a GPS section for receiving and processing a GPS signal;

    (ii) a strategy selector, external to and coupled to the GPS section, that determines a positioning strategy based upon a state of the GPS section; and

    (iii) a communication system, coupled to the GPS section and the strategy selector, for transmitting and receiving data to and from a location aiding server, and(b) a location aiding server, which communicates with the communications system of the GPS terminal via a communications network, including;

    (i) an aiding data generation section for forming location aiding data; and

    (ii) a communication control section for transmitting data to and receiving data from the GPS terminal.

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