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. 20, 1998
Filed:
Sep. 15, 1995
Tatsuo Matoba, Kawasaki, JP;
Keiichi Yorimitsu, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A I/O controller which is connected to a plurality of I/O units and one spare I/O unit, controls a plurality of I/O units based on a command from a master unit, and allows a spare I/O unit to be used in place of an I/O unit where an abnormality is found, when an abnormality is found in any of a plurality of I/O units. This I/O controller gives a decision about normality at a time interval not in use for an operation when no command from a master unit (10) is being processed, after selecting I/O units (30) or a spare I/O unit (31). When it gives a decision of abnormality, the controller stores information about the abnormality in preventive maintenance information storage register (25) as preventive maintenance information.