Optical communication system
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United States of America Patent
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Jun 12, 2007
Grant Date -
Oct 16, 2003
app pub date -
Apr 30, 2003
filing date -
May 29, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Communicating a signal includes receiving the signal at a primary device of a switching system, where the primary device is associated with a primary path along which the signal is propagating. A primary overmodulation signal associated with the primary path is generated. The absence of the primary overmodulation signal is detected, and an operating signal is sent from the primary device to a secondary device of the switching system, where the secondary device is associated with a secondary path. The operating signal operates to initiate propagation of the signal along the secondary path.
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