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:
Nov. 09, 1999
Filed:
Mar. 18, 1997
Hitachi, Ltd., Tokyo, JP;
Abstract
A fault recovering method for substituting an instruction processor (IP) for a system supporting processor to execute processing thereof when the system supporting processor fails. An apparatus implementing this processing method comprises a plurality of processors, at least one of which is operated as a system supporting processor (SSP) and the rest of which are operated as instruction processors. When the SSP fails, an interrupt is generated to an OS running on at least one IP. The OS recognizes that a fault occurred in the IP, abnormally terminates an application program which has been running on the IP when the interrupt was generated, or stops instruction processing as the IP falling into a hardware failure state, or input a command for disconnecting an alternate instruction processor for the system supporting processor, so that the IP takes over functions of the SSP.