Tri-state in-circuit logic comparator with automatic input/outpu

Details Tri-state in-circuit logic comparator with automatic input/outpu Tri-state in-circuit logic comparator with automatic input/outpu

1985-01-02

1987-03-31

Fleming, Michael R.

Excavating

324 73R, G06F 1100

Patent

active

046548505

ABSTRACT:
A logic comparator circuit and system for testing the operation of an operating logic circuit installed a powered system against the operation of a known good, or reference, logic circuit of the same type or style. This is accomplished by applying the power, return and input signals of the operating logic circuit to the reference logic circuit and then comparing the corresponding output signals of each to detect improper operation. The present invention makes the interconnection of the two logic circuits to the logic comparator simple by only requiring that the user designate which terminals of the logic circuits are for power and return. The present logic circuit is provided with means for automatically discriminating between input and output terminals of the two logic circuits, and for clamping a free floating terminal of the operating logic circuit so that it may be detected repeatably.

REFERENCES:
patent: 3614608 (1971-10-01), Gledd
patent: 3633016 (1972-01-01), Walker
patent: 3821645 (1974-06-01), Vinsani
patent: 3924109 (1975-12-01), Jhu
patent: 4556976 (1985-12-01), Howarth

Affiliated with

Also associated with

Rating

Tri-state in-circuit logic comparator with automatic input/outpu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tri-state in-circuit logic comparator with automatic input/outpu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tri-state in-circuit logic comparator with automatic input/outpu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2218027