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.:
Date of Patent:
Nov. 25, 2008
Filed:
Oct. 17, 2006
Jun Takasou, Tokyo, JP;
Norio Higashisaka, Tokyo, JP;
Jun Takasou, Tokyo, JP;
Norio Higashisaka, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A laser diode drive circuit includes a first transistor having a collector connected to an anode of a laser diode; a second transistor having a collector connected to a cathode of the laser diode; a constant current circuit connected between a ground point and emitters of the first and second transistors; a first high-pass filter connected between the base and the collector of the first transistor; and a second high-pass filter connected between the base and the collector of the second transistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile