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:
Apr. 29, 2014
Filed:
Feb. 27, 2012
Applicants:
Atsushi Kanamori, Osaka, JP;
Hirohisa Warita, Osaka, JP;
Takeshi Murata, Osaka, JP;
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an LED driving circuit (), including: an impedance detecting section () for detecting an impedance value of a phase-control type dimmer (); and an impedance adjusting section () for adjusting an impedance of the LED driving circuit () based on the impedance value detected by the impedance detecting section ().