The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 28, 1995

Filed:

Jul. 25, 1994
Applicant:
Inventor:

Naoshi Higaki, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
327 51 ; 327 52 ; 327 53 ; 326 52 ; 326 55 ;
Abstract

A logic circuit includes a differential amplifier circuit to which a first input signal and a second input signal both of which are complementary are to be supplied, having a circuit for outputting a first output signal and a second output signal both of which are complementary, the first and second output signals depending on a difference between the first and second input signals, an output terminal, and a switching circuit for, based on a first switching signal and a second switching signal which are complementary, performing a switching operation so that either the first output signal or the second output signal is selected as a signal supplied to the output terminal, wherein the signal supplied to the output terminal is a result of an logical operation of the first input signal and the first switching signal. A current sense amplifier may be substituted for the differential amplifier.


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