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GPS receiver utilizing a communication link

  • US 6,421,002 B2
  • Filed: 01/18/2001
  • Issued: 07/16/2002
  • Est. Priority Date: 10/09/1995
  • Status: Expired due to Term
First Claim
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1. A method for providing a local oscillator signal in a mobile satellite positioning system (SPS) receiver, said method comprising:

  • receiving a signal having a carrier frequency and a data signal modulated on said carrier frequency;

    extracting a reference signal from said data signal modulated on said carrier frequency;

    using said reference signal to provide a local oscillator signal to acquire SPS signals, wherein said signal is distinct from said SPS signals.

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