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System and method for distribution of GPS satellite information

  • US 7,574,215 B1
  • Filed: 11/06/2000
  • Issued: 08/11/2009
  • Est. Priority Date: 11/06/2000
  • Status: Active Grant
First Claim
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1. A positioning information distribution system comprising:

  • a plurality of satellite data receiving stations receiving data from at least one satellite in a positioning system and performing a plurality of satellite specific operations comprising;

    extracting satellite information, calculating differential correction data relative to its own position, and transmitting satellite specific data including said satellite information and said differential correction data via a data link for each satellite in said positioning system from which data was received;

    an information processing station coupled with said data link, said information processing station receiving a plurality of said satellite specific data transmissions from each of said plurality of satellite data receiving stations, conjoining said plurality of satellite specific data transmissions into a data file comprising satellite information and differential correction data for a plurality of said satellites in said positioning system, and distributing said data file via a network; and

    a mobile unit including a positioning system receiver and a data processing unit, said mobile unit accessing said network and receiving said data file without providing any location information to said information processing station, said mobile unit selecting a portion of said data file correlating to satellites being in line-of-sight of said mobile unit and utilizing said portion of said data file to assist in computing a measured position of said mobile unit.

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