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Method and apparatus for satellite positioning system (SPS) time measurement

DC
  • US 6,377,209 B1
  • Filed: 03/21/2000
  • Issued: 04/23/2002
  • Est. Priority Date: 02/03/1997
  • Status: Expired due to Term
First Claim
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1. A method for measuring time related to satellite data messages for use with a satellite positioning system (SPS), said method comprising:

  • receiving at an entity a first record of at least a portion of a satellite data message of a satellite positioning system;

    comparing said first record with a second record of said satellite data message wherein said first record and said second record overlap at least partially in time, said comparing being performed after determining an estimated time when said first record was received;

    determining a time from said comparing, said time indicating when said first record was received at a remote entity.

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