Logic signal output buffer circuit

Details Logic signal output buffer circuit Logic signal output buffer circuit

1997-09-09

2000-08-29

Tokar, Michael

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

326 83, 326 57, 327 91, H03K 1716, H03K 19003, H03K 190175

Patent

active

06111426&

ABSTRACT:
An output buffer circuit for logic signals produces an output logic signal from an input logic signal. It comprises a storage circuit capable of storing the logic state of the input signal and an output stage to produce the output signal as a function of the logic state stored in the storage circuit. A control circuit comprises a circuit for the comparison of the input and output signals. The control circuit produces an updating command signal whose logic state represents the relationship existing between the logic states of the input and output signals. This updating signal activates the storage, in the storage circuit, of the state of the input signal.

REFERENCES:
patent: 4680491 (1987-07-01), Yokouchi et al.
patent: 4685103 (1987-08-01), Black
patent: 5289518 (1994-02-01), Nakao
patent: 5387824 (1995-02-01), Michelsen
patent: 5426682 (1995-06-01), Takatsu
patent: 5459413 (1995-10-01), Kim

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