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:
Oct. 29, 2013
Filed:
Oct. 26, 2011
Applicants:
Akihiro Moto, Yokohama, JP;
Keiji Tanaka, Yokohama, JP;
Inventors:
Akihiro Moto, Yokohama, JP;
Keiji Tanaka, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An LD-Driver with the push-pull arrangement is disclosed. The driver includes the high side driver driven by the positive phase signal and the low side driver driven by the negative phase signal. When the positive phase signal is in HIGH, the high side driver becomes ON and the LD driver provides additional current to the bias current for the LD; while, when the negative phase signal is in HIGH, the low side driver becomes ON and the LD driver extracts a portion of the bias current for the LD.