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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 10345627 B1

PDFFull Text
Date of Patent:
Jul. 09, 2019

Filed:

Jan. 22, 2018

Driving circuit for optical modulator

Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventor:

Taizo Tatsumi, Yokohama, JP;

Assignee:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Loha Ben

Int. Cl.
CPC ...
G02F 1/00 (2006.01); G02F 1/01 (2006.01); G02F 1/03 (2006.01); H03F 3/45 (2006.01); H03F 3/60 (2006.01); H03F 3/68 (2006.01); H04B 1/00 (2006.01); H03F 3/195 (2006.01); H04B 10/516 (2013.01); H04B 10/2507 (2013.01); H04B 10/54 (2013.01);
U.S. Cl.
CPC ...
G02F 1/0123 (2013.01); G02F 1/0327 (2013.01); H03F 3/195 (2013.01); H03F 3/45089 (2013.01); H03F 3/45475 (2013.01); H03F 3/605 (2013.01); H03F 3/68 (2013.01); H04B 10/2507 (2013.01); H04B 10/516 (2013.01); H04B 10/54 (2013.01); G02F 1/00 (2013.01); H03F 3/45 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45612 (2013.01); H04B 1/00 (2013.01);
Abstract

In an exemplary embodiment, a plurality of differential amplification circuits has: first differential amplification circuits each including a differential pair circuit to generate the differential signal according to the differential input signal, a delay line, and a current source to supply a current to the differential pair circuit via the delay line; and second differential amplification circuits each including a differential pair circuit to generate the differential signal according to the differential input signal, and a current source to directly supply a current to the differential pair circuit. The first differential amplification circuits and the second differential amplification circuits are mutually connected in parallel between the pair of input-side transmission lines and the pair of output-side transmission lines.

Find Patent Forward Citations

Tatsumi, Taizo. (2019). Driving circuit for optical modulator (U.S. Patent No. 10345627). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10345627

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

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