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:
Sep. 09, 2014
Filed:
Feb. 08, 2011
Osamu Maeda, Kanagawa, JP;
Takeshi Yuwaki, Kagoshima, JP;
Katsuhisa Daio, Kagoshima, JP;
Koichi Kobe, Kanagawa, JP;
Hirofumi Nakano, Kanagawa, JP;
Takahiro Arakida, Kanagawa, JP;
Osamu Maeda, Kanagawa, JP;
Takeshi Yuwaki, Kagoshima, JP;
Katsuhisa Daio, Kagoshima, JP;
Koichi Kobe, Kanagawa, JP;
Hirofumi Nakano, Kanagawa, JP;
Takahiro Arakida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A drive circuit and a drive current correcting method are described herein. The drive circuit comprises a current source that outputs a drive current, and a correction circuit that outputs a correction current. The correction circuit includes a first RC time constant circuit. An output terminal of the current source is connected to an output terminal of the correction circuit.