Optical communications – Optical repeater system – Monitoring
Reexamination Certificate
2006-10-31
2006-10-31
Phan, Hanh (Department: 2613)
Optical communications
Optical repeater system
Monitoring
C398S181000, C398S030000, C398S173000, C398S011000, C398S033000, C398S032000, C398S034000, C398S037000, C398S064000, C359S337000, C359S341430
Reexamination Certificate
active
07130544
ABSTRACT:
An optical repeating system includes an optical transmitter and an optical amplifying repeater. The optical transmitter transmits a supervisory command and a control command to the optical amplifying repeater as a first sub-signal. The supervisory command is a command to supervise internal circuits of the optical amplifying repeater, and the control command is a command to control the optical amplifying repeater. The optical amplifying repeater includes multiple sub-modules each for amplifying and repeating main signals on multiple sets of optical transmission lines. When receiving the supervisory command via the optical transmission line, each sub-module transmits a supervisory signal indicating the supervisory result associated with the supervisory command to an optical receiver as a second sub-signal. In addition, when receiving a predetermined control command via the optical transmission line, each sub-module initializes another sub-module of the multiple sub-modules in response to the predetermined control command. The optical amplifying repeater can restart its control program even when it has fallen into a state where it is difficult to continue to execute the normal operation in accordance with the control program because of some exception or the like.
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Goto Hideki
Horiuchi Yukio
Ishii Daishi
Kasahara Yasunori
Kawazawa Toshio
KDDI Corporation
KDDI Submarine Cable Systems Inc.
Mitsubishi Denki & Kabushiki Kaisha
Phan Hanh
LandOfFree
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