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:
May. 04, 2010
Filed:
Dec. 27, 2005
Hiroki Ooi, Kawasaki, JP;
Takafumi Terahara, Kawasaki, JP;
Jens C. Rasmussen, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Yuichi Akiyama, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Takafumi Terahara, Kawasaki, JP;
Jens C. Rasmussen, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Yuichi Akiyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The optical node connects N networks to each other (where N is an integer larger than one). Each of the N networks respectively includes a first transmission path and a second transmission path. The optical node includes a switching unit that connects the first transmission path of one network of the N networks to other (N−1) networks; a failure detector that detects failure in the first transmission path of the network; and a control unit that causes the switching unit to connect the second transmission path of the network to the other (N−1) networks when the failure is detected.