Optical communications – Optical repeater system – Monitoring
Reexamination Certificate
2007-01-02
2007-01-02
Phan, Hanh (Department: 2613)
Optical communications
Optical repeater system
Monitoring
C398S173000, C398S181000, C398S011000, C398S018000, C398S030000, C398S031000, C398S033000, C398S037000, C359S341430, C359S337000, C359S333000
Reexamination Certificate
active
10191319
ABSTRACT:
An optical repeating system includes an optical transmitter and a plurality of optical amplifying repeaters. The optical transmitter specifies a part or all of the optical amplifying repeaters, and transmits a supervisory command to the specified optical amplifying repeaters as a first sub-signal via an uplink or downlink optical transmission line. The supervisory command is a command to supervise internal circuits of the optical amplifying repeaters. Receiving the supervisory command addressed thereto via the uplink or downlink optical transmission line, the optical amplifying repeaters each transmit a supervisory signal indicating a supervisory result corresponding to the supervisory command to optical receivers via the uplink and downlink optical transmission lines as a second sub-signal. The optical system can reduce the time take to acquire the supervisory information about the plurality of the optical amplifying repeaters.
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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
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Phan Hanh
LandOfFree
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