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 7372882 B1

PDF
Full Text
Expired
Date of Patent:
May. 13, 2008

Filed:

Apr. 27, 2005
Applicants:

Tsuyoshi Horiuchi, Tokyo, JP;

Takehiko Umeyama, Tokyo, JP;

Inventors:

Tsuyoshi Horiuchi, Tokyo, JP;

Takehiko Umeyama, Tokyo, JP;

Assignee:

Renesas Technology Corp., Chiyoda-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A driving circuit supplies a suppression current (I) which reduces a decrease in a driving current (Idrive) immediately after occurrence of an overshoot at the time of the rise of the driving current (Idrive) to a laser diode (). The driving circuit draws a suppression current (I) which reduces an increase in the driving current (Idrive) immediately after occurrence of an undershoot at the time of the fall of the driving current (Idrive) from the driving current (Idrive).


Find Patent Forward Citations

Horiuchi, Tsuyoshi. (2008). Driving circuit for and semiconductor device for driving laser diode (U.S. Patent No. 7372882). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7372882

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

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