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. 01, 2022

Filed:

Aug. 18, 2021
Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Seiji Kumagai, Osaka, JP;

Yoshiyuki Sugimoto, Osaka, JP;

Keiji Tanaka, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01); H03F 1/56 (2006.01);
U.S. Cl.
CPC ...
G01J 1/44 (2013.01); H03F 1/56 (2013.01); G01J 2001/446 (2013.01);
Abstract

A receiving circuit includes a first input terminal and a second input terminal, an input circuit that includes a first node, a second node, a first inductor, a second inductor, a first variable resistive element, and a second variable resistive element. The first variable resistive element is electrically connected between the first node and the second input terminal, and the second variable resistive element is electrically connected between the second node and the first input terminal. The receiving circuit further includes a differential amplifier configured to generate a differential voltage signal in accordance with a differential current signal. The receiving circuit still further includes a control circuit configured to perform detection of an amplitude of the differential voltage signal and change a resistance value of the first variable resistive element and a resistance value of the second variable resistive element based on a result of the detection.


Find Patent Forward Citations

Kumagai, Seiji. (2022). Receiving circuit and optical receiving circuit (U.S. Patent No. 11486760). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11486760

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

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