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. 03, 2006
Filed:
Oct. 18, 2001
Mitsuru Sugawara, Kawasaki, JP;
Takashi Yano, Hachioji, JP;
Kyosuke Dobashi, Higashimurayama, JP;
Katsumi Kusama, Chofu, JP;
Sadao Tanikoshi, Hachioji, JP;
Kazuhiko Ide, Yamato, JP;
Mitsuru Otani, Tokyo, JP;
Masayuki Takami, Hachioji, JP;
Mototaka Kitajima, Tachikawa, JP;
Mitsuru Sugawara, Kawasaki, JP;
Takashi Yano, Hachioji, JP;
Kyosuke Dobashi, Higashimurayama, JP;
Katsumi Kusama, Chofu, JP;
Sadao Tanikoshi, Hachioji, JP;
Kazuhiko Ide, Yamato, JP;
Mitsuru Otani, Tokyo, JP;
Masayuki Takami, Hachioji, JP;
Mototaka Kitajima, Tachikawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Optical signals inputted to input ports are split in half by 1×2 optical splitters respectively and the resulting signals are inputted to the input terminals of an optical matrix switch. The optical matrix switch switches between the routes of the individual optical signals and outputs the signal at any of the output ports. This enables the optical signal from the same input port to be outputted at two different output ports, which makes it possible to effect 'bridge' at the time of protection switching.