The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
Jul. 10, 2002
Yasunori Kasahara, Tokyo, JP;
Hideki Goto, Tokyo, JP;
Takashi Mizuochi, Tokyo, JP;
Kenkichi Shimomura, Tokyo, JP;
Yukio Horiuchi, Saitama, JP;
Masatoshi Suzuki, Saitama, JP;
Daishi Ishii, Tokyo, JP;
Toshio Kawazawa, Tokyo, JP;
Yasunori Kasahara, Tokyo, JP;
Hideki Goto, Tokyo, JP;
Takashi Mizuochi, Tokyo, JP;
Kenkichi Shimomura, Tokyo, JP;
Yukio Horiuchi, Saitama, JP;
Masatoshi Suzuki, Saitama, JP;
Daishi Ishii, Tokyo, JP;
Toshio Kawazawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
KDDI Corporation, Tokyo, JP;
KDDI Submarine Cable Systems Inc., Tokyo, JP;
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.