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SELF-CHECKING PAIR-BASED MASTER/FOLLOWER CLOCK SYNCHRONIZATION

  • US 20080144668A1
  • Filed: 12/13/2006
  • Published: 06/19/2008
  • Est. Priority Date: 12/13/2006
  • Status: Active Grant
First Claim
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1. A method for clock synchronization in a braided ring network, the method comprising:

  • providing a network communication schedule for a braided ring network comprising a plurality of nodes, wherein at least two nodes of the plurality of nodes comprise a self-checking pair of a first node and a second node, the first node performing a method comprising;

    determining when a first rendezvous message is received from the second node;

    when the second rendezvous message is received from the second node, calculating a time difference between the send instance of the first rendezvous message and a local time;

    when the time difference is not greater than a reference bound, calculating a common sending point for transmitting a first synchronization message, wherein the common sending point is calculated based on the time difference; and

    selectively sending the first synchronization message to the braided ring network when the common sending point is reached based on the time difference.

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