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:
May. 05, 1998
Filed:
Jul. 26, 1996
Hiroshi Ohguro, Hadano, JP;
Koichi Ikeda, Machida, JP;
Takaaki Nishiyama, Hadano, JP;
Hiroshi Iwamoto, Hadano, JP;
Kenichi Kurosawa, Hitachi, JP;
Tetsuaki Nakamikawa, Hitachi, JP;
Michio Morioka, Hitachi, JP;
Hitachi,Ltd., Tokyo, JP;
Abstract
A highly reliable computer system is intended to duplicate processors, compare the outputs of the processors with each other and enhance the validity of the output of processor system. If a mismatch between the outputs is detected, one of the processors performs a process of saving an internal state of the processor in amain memory and diagnosing factor of the detected mismatch. If the process is recognized to be continued in a duplex mode, the processors are re-synchronized by a processor reset, and initialize themselves and restore the internal information saved in the main memory for continuing the process having been proceeded before the fault occurred.