Majority circuit, a controller and a majority LSI

Details Majority circuit, a controller and a majority LSI Majority circuit, a controller and a majority LSI

1994-05-16

1996-11-19

Beausoliel, Jr., Robert W.

39518502, G06F 1100

Patent

active

055771998

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.

REFERENCES:
patent: 4709376 (1987-11-01), Kage
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patent: 4799140 (1989-01-01), Dietz et al.
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patent: 5241548 (1993-08-01), Dillon et al.
patent: 5269016 (1993-12-01), Butler et al.
patent: 5271023 (1993-12-01), Norman
patent: 5339404 (1994-08-01), Vandling, III
patent: 5382950 (1995-01-01), Gronemeyer
patent: 5394409 (1995-02-01), Barthel et al.

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