Providing a timing source for multiple nodes coupled to a circuit-switched network
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United States of America Patent
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Apr 30, 2013
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N/A
app pub date -
Dec 30, 2003
filing date -
May 16, 2003
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Abstract
A communications network includes multiple distributed nodes that are coupled by a circuit-switched network. To improve efficiency, a plurality of the nodes are associated with a single source synchronization block that injects timing messages over circuits in the circuit-switched network to the plurality of nodes. Each of the plurality of nodes is associated with a timing extraction and recovery block that extracts information from the timing messages injected by the source synchronization block to synchronize a local clock in each node to the frequency and phase of a clock received by the source synchronization block.
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