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:
Dec. 29, 2009
Filed:
Oct. 26, 2005
Yasuki Fujii, Kawasaki, JP;
Keiji Miyazaki, Kawasaki, JP;
Shinya Kanou, Kawasaki, JP;
Akira Nagata, Kawasaki, JP;
Takuya Okamoto, Kawasaki, JP;
Tomoyuki Harada, Kawasaki, JP;
Yasuki Fujii, Kawasaki, JP;
Keiji Miyazaki, Kawasaki, JP;
Shinya Kanou, Kawasaki, JP;
Akira Nagata, Kawasaki, JP;
Takuya Okamoto, Kawasaki, JP;
Tomoyuki Harada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A signaling system able to improve the efficiency of utilization of network resources and autonomously set a correct spare route, that is, a signaling system setting a path passing through two rings interconnected by a plurality of nodes by signaling wherein each node is provided with an inter-node connection information table including topology information in the network and a branch node judgment unit for judging whether a home node is a branch node based on the content of the inter-node connection information table and wherein when the home node receives a signaling message for setting a working path and it is judged that the node is a branch node, the signaling of the spare path is started for the destination node of the spare path based on the information in the inter-node connection information table so as to autonomous set the spare path.