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 7982538 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 19, 2011

Filed:

Nov. 12, 2009
Applicants:

Hidekazu Kikuchi, Kanagawa, JP;

Gen Ichimura, Tokyo, JP;

Yukihisa Kinugasa, Tokyo, JP;

Inventors:

Hidekazu Kikuchi, Kanagawa, JP;

Gen Ichimura, Tokyo, JP;

Yukihisa Kinugasa, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract

A differential includes first and second current mirror circuits that provide the gates of slave transistors with gate voltages of master transistors via a voltage follower where a slew rate at a rise time is equal to a slew rate at a fall time. Thus, when the master current is increased or decreased, an incremental change in slave current and a decremental change in slave current are symmetrical with each other. The use of such current mirrors in a differential manner leads to no generation of common mode noise even in these changes.


Find Patent Forward Citations

Kikuchi, Hidekazu. (2011). Differential output circuit and communication device (U.S. Patent No. 7982538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7982538

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

Loading…