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Method an apparatus for adjusting the time of a clock if it is determined that the degree of adjustment is within a limit based on the clocks initial time

  • US 7,266,714 B2
  • Filed: 06/15/2004
  • Issued: 09/04/2007
  • Est. Priority Date: 06/15/2004
  • Status: Expired due to Fees
First Claim
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1. A method of operating a free-running secure clock, wherein the clock has been initially set to a time, comprisingreceiving a request to adjust the time of the clock,determining if the degree of requested adjustment summed with prior adjustments, is within a limit based on the time to which the clock was initially set, andfor all requests to adjust the time of the clock, permitting such a request if the degree of requested adjustment summed with prior adjustments is within the limit.

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