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Apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris

  • US 6,703,972 B2
  • Filed: 04/02/2002
  • Issued: 03/09/2004
  • Est. Priority Date: 07/13/2000
  • Status: Expired due to Term
First Claim
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1. Apparatus for providing satellite data to a mobile receiver comprising:

  • four tracking stations for receiving telemetry data from all satellites in a global positioning system constellation of satellites; and

    a communication network for propagating the telemetry data from all the satellites to a data processor.

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