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. 27, 2009
Filed:
May. 13, 2003
Yuichi Kuramochi, Hitachinaka, JP;
Toshio Manaka, Hitachinaka, JP;
Hiroyuki Saito, Hitachinaka, JP;
Tatsuya Yoshida, Naka, JP;
Yuichi Kuramochi, Hitachinaka, JP;
Toshio Manaka, Hitachinaka, JP;
Hiroyuki Saito, Hitachinaka, JP;
Tatsuya Yoshida, Naka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A communication control system has a plurality of control units that are connected via a communication bus to provide bidirectional communication. A control unit detects a failure when it occurs. Upon failure detection, the control unit generates a failure detection signal which operates a communication signal cutoff means to cut off the communication signal transmission from the control unit. In accordance with the communication signal reception state in a control unit other than the control unit in which the failure is detected, the former control unit identifies a failure occurrence in the latter faulty control unit.