Importance

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Abstract

Disclosed is a method and system for synchronizing a timing device, for instance a real time clock that is embodied on a time-stamping cipher module, of a system via a communications network having an unknown transmission time with timing devices of n systems. At least a first and a second set of time synchronization signals are iteratively exchanged between the systems via the communications network. Data relating to a communication delays between the systems and statistical data relating to at least one of a precision of the synchronization and a convergence of the iteratively exchanged time synchronization data is determined. When the data relating to a precision of the synchronization are within predetermined threshold values, the system is synchronized. Further, when the data relating to a convergence of the iteratively exchanged time synchronization data is indicative of other than convergence, irregular communications network behavior is indicated and the system sends at least an error message in dependence thereon.

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First Claim