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:
Jun. 12, 2007
Filed:
Jul. 19, 2002
Applicant:
Naofumi Kobayashi, Kawasaki, JP;
Inventor:
Naofumi Kobayashi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a network system comprising an upper relay and a plurality of lower relays connected to the upper relay with working links, the lower relays are connected with redundant links, and communication is performed through the redundant links when the working links are unavailable. Also, frames passing through a same lower relay are distributed and transmitted to the working link and the detour path (working link—lower relay—redundant link).