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.
Patent No.:
Date of Patent:
Nov. 12, 1985
Filed:
Feb. 10, 1983
Applicant:
Inventor:
Tatsunori Murotani, Tokyo, JP;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307279 ; 307443 ; 307548 ; 307577 ; 307290 ;
Abstract
A logic circuit provided with a desired hysteresis characteristic in its input-output characteristics is disclosed. The circuit comprises a logic section including a first depletion type field effect transistor operating as a load element and at least one input field effect transistor of an enhancement type, a series circuit of a second depletion type field effect transistor and a switching transistor connected in series with respect to the first depletion type field effect transistor and means responsive to an output signal of the logic section for controlling the switching transistor so as to provide a hysteresis in the input-output characteristic of the circuit.