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:
Oct. 23, 2012
Filed:
Dec. 16, 2009
Ryoji Azumi, Kawasaki, JP;
Takashi Umegaki, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Shosaku Yamasaki, Kawasaki, JP;
Ryoji Azumi, Kawasaki, JP;
Takashi Umegaki, Kawasaki, JP;
Shigeo Tani, Kawasaki, JP;
Shosaku Yamasaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A network apparatus includes: an input interface unit; a first and second line switching units cross-connecting output signals from the input interface unit; an output interface unit including a selection unit selecting outputs from the first or second line switching units; and a CPU. The line switching units each include: a control signal generation unit storing setting data in a memory and generating a line switching control signal based on the setting data; a memory error detection processing unit detecting a memory error and outputting error information; and a main signal processing unit writing setting data into a buffer when an error is not detected, and holding setting data stored in the buffer when the error is detected, and which performs cross-connection processing according to the setting data stored in the buffer. The CPU controls the selection unit according to the error information.