METHOD AND APPARATUS FOR OPTICAL SIGNAL CONTROL USING FILTER IN MULTICASTING RING NETWORK NODE AND PROTECTION SWITCHING IN OPTICAL MULTIPLEX SECTION
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Jun 18, 2014
filing date -
Nov 11, 2013
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for optical signal control using a filter in a multicasting ring network node and protection switching in an optical multiplex section is disclosed, in which a multicasting ring network node extracts or passes a wavelength from a node requiring optical signal wavelength extraction, transmits the passed optical signal to a neighboring node through control as necessary, and readily performs protection switching on an optical multiplex section signal.
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