Optical transponder and method for detecting and treating...

Optical communications – Diagnostic testing – Fault detection

Reexamination Certificate

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Details

C398S030000

Reexamination Certificate

active

07471896

ABSTRACT:
Provided are an optical transponder that processes a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction, and a method of detecting and treating errors in optical-channel sublayers of the same. The method includes detecting an error signal or a maintenance signal from a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction; treating errors in a predetermined layer of a plurality of layers that requires error treatment when the error signal or the maintenance signal is detected or canceled; and investigating a reason for the errors in the predetermined layer.

REFERENCES:
patent: 6850660 (2005-02-01), Notani
patent: 2005/0068995 (2005-03-01), Lahav et al.
patent: 000010138 (2000-02-01), None
patent: 000044503 (2000-07-01), None
patent: 1020010064019 (2001-07-01), None
patent: 1020020077000 (2002-10-01), None
patent: 1020030056289 (2003-07-01), None
patent: 10-2004-0058629 (2004-07-01), None
First International Conference on Optical Communications and Networks, pp. 289-291, Yunhee Cho et al., “An Overhead Processing Model for OCh-level OAM,” Nov. 12-14, 2002.

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