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Method, apparatus and system for GPS time synchronization using cellular signal bursts

  • US 9,341,716 B2
  • Filed: 06/14/2006
  • Issued: 05/17/2016
  • Est. Priority Date: 02/05/2001
  • Status: Expired due to Term
First Claim
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1. A method, comprising:

  • responding to a cellular communication signal received by an antenna by generating, by a cellular module, a trigger pulse derived from a data component of the cellular communication signal;

    providing the trigger pulse to a trigger register via a special hardware path that is configured to provide the trigger pulse without substantial random delay, wherein the special hardware path is a path between the cellular module and a global positioning system module that are located in a global positioning system receiver;

    accessing, by the global positioning system module, a signal indicating local time; and

    responding to the trigger pulse provided via the special hardware path and responding to the signal indicating local time, by providing a local time value for receipt of the trigger pulse.

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