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Location-determination method and apparatus

  • US 6,525,688 B2
  • Filed: 06/20/2001
  • Issued: 02/25/2003
  • Est. Priority Date: 12/04/2000
  • Status: Expired due to Term
First Claim
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1. A global positioning system, comprising:

  • a) using a global positioning system (“

    GPS”

    ) receiver to receive a GPS signal;

    b) computing a pseudorange for a GPS satellite without performing signal tracking on the received GPS signal; and

    c) using the computed pseudorange in a triangulation method that resolves an uncertainty in the last code segment transmitted by the satellite at the time the GPS signal is received to identify an estimated location of the GPS receiver.

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