Self-checking voting logic for fault tolerant computing applicat

Details Self-checking voting logic for fault tolerant computing applicat Self-checking voting logic for fault tolerant computing applicat

1988-05-04

1989-10-10

Atkinson, Charles E.

Excavating

371 3, G06F 1100

Patent

active

048736856

ABSTRACT:
An apparatus and method for providing self-checking voting logic for fault tolerant computing applications. The apparatus comprises a voting circuitry for producing a voting circuit output signal based upon a majority of triplicated logic output signals, unanimous circuitry for producing a unanimous circuit output signal that represents whether or not all of said triplicated logic output signal values are equal or not and self-checking circuitry for monitoring the validity of operation of the voting and the unanimous circuitry as well as said self-checking circuitry itself.

REFERENCES:
patent: 3784978 (1974-01-01), Zola
patent: 3825894 (1974-07-01), Johnson, Jr.
patent: 3891969 (1975-06-01), Christensen
patent: 4468768 (1984-08-01), Sunkle et al.
Peritsky, Simple Digital Voting Circuit Detects a Unanimous Decision, Electronic Design 20, Sep. 27, 1978, vol. 26, p. 94.

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