Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2005-04-19
2005-04-19
Healy, Brian M. (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S024000, C385S015000, C385S017000, C385S147000, C398S017000, C398S021000, C398S020000, C398S036000, C398S050000
Reexamination Certificate
active
06882765
ABSTRACT:
The present invention provides methods, apparatus and systems for protecting connections between optical cross-connect switches and client equipment. A connection failure is detected, signaled, and a switch made by the client equipment and the optical cross-connect switch to a protection connection between them so as to minimize service interruption. An out-of-band channel or an in-band channel can be used to signal the connection failure.
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A. Himeno, R. Nagase, T.
Erickson Kent
Kaligotia Subhashini
Ramaswami Rajiv
Blakely & Sokoloff, Taylor & Zafman
Healy Brian M.
XROS, Inc.
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