Variable reference level input circuit and method

Details Variable reference level input circuit and method Variable reference level input circuit and method

2005-12-08

2008-12-30

Cho, James H (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S029000

Reexamination Certificate

active

07471108

ABSTRACT:
We describe an input circuit and method. The input circuit includes a variable reference level generator that increases a level of a reference signal in proportion to a time when an input signal transits from a low level to a high level and decreases the level of the reference signal in proportion to a time when the input signal transits from a high level to a low level. An analyzer compares the level of the input signal with the level of the reference signal, determines the level of the input signal, and outputs a signal based on the comparison. The input circuit and method widen the minimum difference between the input and reference signal to facilitate analysis of the input signal.

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English language abstract of Korean Publication No. 2003-0066016.
English language abstract of Japanese Publication No. 06-021798.
English language abstract of Japanese Publication No. 10-020973.

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