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:
Dec. 25, 2001
Filed:
Nov. 06, 1998
Hiroki Hihara, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A fault tolerant computer comprising plural operation controllers is provided, which can judge and separate a damaged element by using a double-redundant structure without using a triple or greater-redundant structure. The computer comprises two judgment sections corresponding to each operation controller in the double-redundant structure, and each judgment section compares an output from the operation controller connected to the present judgment section with an output from the operation controller connected to the other judgment section, wherein one judgment section receives a signal indicating a comparison result from the other judgment section, and collates this signal and a comparison result obtained in the present judgment section with reference to additional diagnosis information so as to judge whether the output from the operation controller connected to the present judgment section is correct.