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. 15, 2013
Filed:
Oct. 29, 2009
Mitsuhiro Kawaguchi, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Ryoji Azumi, Kawasaki, JP;
Hideki Matsui, Kawasaki, JP;
Mitsuhiro Kawaguchi, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Ryoji Azumi, Kawasaki, JP;
Hideki Matsui, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
There is provided a node apparatus having a plurality of interface units for interfacing to a transmission line, switch units of a work system and a protection system for switching signals of the transmission line, and a service selector used to relieve a network failure over ring networks interconnected by node apparatuses, the node apparatus including a first controller for controlling the service selector in the switch units, and a second controller for controlling setting information of alarm detection in case of using the service selector in the interface units.