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:
Feb. 21, 2012
Filed:
Jan. 06, 2010
Hiroaki Nishijo, Kawasaki, JP;
Yasuhiko Hanaoka, Kawasaki, JP;
Hiroaki Nishijo, Kawasaki, JP;
Yasuhiko Hanaoka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A redundant system includes a redundant apparatus and a control unit that controls power supplied to the redundant apparatus. The redundant apparatus includes a state management unit that manages an operational state of the redundant apparatus, and a response unit that returns the operational state to the control unit. The control unit includes a first requesting unit that requests a redundant apparatus that operates as an operation system for the operational state information, a first determination unit that determines whether the response to the request is returned within a predetermined time, a second determination unit that determines whether the operational state is normal if the response is returned within the predetermined time, and a shutdown unit that shuts down the power supply to the redundant apparatus, if the second determination unit determines that the operational state is not normal.