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. 27, 2020
Filed:
Jan. 31, 2018
Rohm Co., Ltd., Kyoto, JP;
Kenichi Fukumoto, Kyoto, JP;
Koji Katsura, Kyoto, JP;
Ryosuke Kanemitsu, Kyoto, JP;
Junichi Itai, Kyoto, JP;
Nobuaki Matsui, Kyoto, JP;
Seiji Nakashima, Kyoto, JP;
Kouji Miyamoto, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An LED drive circuit drives an LED module. The LED module has a light-emitting diode, and an identification unit having characteristic information relating to light-emitting characteristics of the light-emitting diode. The LED drive circuit includes a detection unit and a drive circuit. The detection unit is provided for detecting characteristic information, and generates a detection signal that corresponds to the characteristic information. The drive circuit generates drive current by a drive signal supplied according to the characteristic information based on the detection signal, and supplies the drive current to drive the light-emitting diode.