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. 19, 1996
Filed:
May. 16, 1994
Takashi Tanabe, Kanagawa, JP;
Toshihisa Kamemaru, Kanagawa, JP;
Mamoru Katoh, Kanagawa, JP;
Tsugihiko Ohno, Kanagawa, JP;
Toyohito Hatashita, Kanagawa, JP;
Kaoru Abe, Kanagawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention provides a majority circuit, connecting a plurality of processing units. The majority circuit can detect a single error or multiple errors, and sets the majority output signal to an ineffective level when multiple errors are detected. The majority circuit includes comparators, each comparing two outputs of three processing units, and the error detector recognizes the error status and outputs the single error signal and the multiple error signal accordingly. The majority circuit also includes a selector, which selects the output of a normal processing unit, when the normal processing unit can be specified based on the comparison result. The selector changes the output to a predetermined level, when the normal processing unit cannot be specified.