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:
Mar. 15, 2005
Filed:
Mar. 31, 2003
Aritomo Uemura, Tokyo, JP;
Kiwami Matsushita, Tokyo, JP;
Yukio Horiuchi, Saitama, JP;
Masatoshi Suzuki, Saitama, JP;
Noboru Edagawa, Saitama, JP;
Shu Yamamoto, Saitama, JP;
Shigeyuki Akiba, Saitama, JP;
Aritomo Uemura, Tokyo, JP;
Kiwami Matsushita, Tokyo, JP;
Yukio Horiuchi, Saitama, JP;
Masatoshi Suzuki, Saitama, JP;
Noboru Edagawa, Saitama, JP;
Shu Yamamoto, Saitama, JP;
Shigeyuki Akiba, Saitama, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
KDD Corporation, Tokyo, JP;
KDD Submarine Cable Systems Inc., Tokyo, JP;
Abstract
The optical amplifier according to the present invention is constructed such that the amount of the electric current fed to the power feeding lineis first detected by the current detection means, and then a setting signal is generated to each of the bypass circuitsandin accordance with the thus detected amount of the fed current, and thereafter the output level of each of the optical repeater circuitsandis controlled respectively by the bypass circuitsand, so that the output level of these repeater circuitsandcan be controlled in accordance with the amount of the current fed to the power feeding line