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Time syncrhonization of data

  • US 7,317,941 B2
  • Filed: 11/13/2003
  • Issued: 01/08/2008
  • Est. Priority Date: 11/13/2003
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • measuring drift of a clock within an implantable medical device; and

    generating a correction factor to correct for the drift;

    detecting a first time output from the clock of the implantable medical device at a first time;

    detecting a first time output from a reference clock at the first time;

    detecting a second time output from the clock of the implantable medical device at a second time;

    detecting a second time output from the reference clock; and

    calculating the drift based on the difference between the second time output from the clock of the implantable medical device and the second time output from the reference clock, wherein calculating the drift includes determining a slope of a divergence between a first timeline defined between the first time and the second time for the clock of the implantable medical device and a second time line defined between the first time and the second time for the reference clock.

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