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Method and apparatus for determining time in a satellite positioning system

  • US 6,597,311 B2
  • Filed: 06/26/2002
  • Issued: 07/22/2003
  • Est. Priority Date: 02/03/1997
  • Status: Expired due to Term
First Claim
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1. A method for determining a time associated with a satellite positioning system, said method comprising:

  • comparing a first record of at least a portion of a satellite message that is received by a first entity to a second record of said satellite message to determine a first time value, wherein said second record of said satellite message is received at a second entity; and

    determining a second time value based on a relative velocity of a set of satellites, wherein at least one of said first time value and said second time value indicates said time associated with said satellite positioning system.

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