Apparatus and method for isochronous network delay compensation
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United States of America Patent
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Apr 3, 2007
Grant Date -
Dec 18, 2003
app pub date -
Jun 17, 2002
filing date -
Jun 17, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
In an isochronous telecommunications system sending packets over two routes in a network, a server of the network compares overall transmission delay between the routes. If the new route is faster, a server buffers cells on the new route until the last cell on the old route is delivered. Then the first cell from the new route is delivered at the old delay and subsequent new route cells are delivered with the same delay. If the old route is faster, a server identifies the type of transmission; if it is voice, a signal is inserted to alert the receiver of delay, and if the transmission is video, the system resends the last frame from the old route until frames from the new route arrive.
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