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. 27, 2001

Filed:

Apr. 26, 2000
Applicant:
Inventor:

Tetsuya Uemura, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/900 ; H03K 3/357 ;
U.S. Cl.
CPC ...
G11C 1/900 ; H03K 3/357 ;
Abstract

The present invention includes: a series circuit which has a negative differential resistance element and another negative differential resistance element that has a control terminal capable of controlling a value of an element current; a transfer gate; a latch circuit which has negative differential resistance elements connected in series; and an inverter circuit which has an FET as a drive element and a negative differential resistance element as a load element. With this, such a flip-flop can be obtained that when a clock signal is applied to a power supply terminal of the series circuit and a control terminal of the transfer gate and an input signal is supplied to the control terminal of the negative differential resistance element, an output is placed at a terminal.


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