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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.:

US 4320348 B1

PDFFull Text
Date of Patent:
Mar. 16, 1982

Filed:

Aug. 29, 1979

Variable level converter

Applicant:
Inventors:

Shinjiro Suzuki, Yokohama, JP;

Tadashi Yoshikawa, Yokohama, JP;

Tsuguo Otsuki, Yokohama, JP;

Masao Takeda, Hachioji, JP;

Nobuhisa Kamoi, Yokohama, JP;

Kazuo Satoh, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kanagawa, JP;

Attorney:

Staas & Halsey

Primary Examiner:

James B Mullins

Int. Cl.
CPC ...
H03G / ;
U.S. Cl.
CPC ...
330 52 ; 330284 ;
Abstract

A variable level converter comprising a first variable level converting unit, a second variable level converting unit and an amplifying transistor connected therebetween. Each of the first and second variable level converting units comprises an inverted L-type variable attenuator which includes a variable impedance element. Each variable impedance element is controlled by the same level control signal and has the same electric characteristics.

Find Patent Forward Citations

Suzuki, Shinjiro. (1982). Variable level converter (U.S. Patent No. 4320348). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4320348

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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