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Velocity responsive time tracking

  • US 20030176201A1
  • Filed: 03/12/2002
  • Published: 09/18/2003
  • Est. Priority Date: 03/12/2002
  • Status: Active Grant
First Claim
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1. A method of providing velocity responsive tracking of a timing reference in a signal received by a wireless communications device (WCD), comprising the steps of:

  • estimating the velocity of the WCD;

    determining a tracking speed of a filter, the tracking speed corresponding to the estimated velocity; and

    filtering a timing error signal with the filter to produce a control signal that controls the timing of a synchronization clock.

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