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. 09, 2021
Filed:
May. 29, 2020
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/345 (2020.01); H05B 45/14 (2020.01); H05B 45/325 (2020.01); H05B 45/3725 (2020.01);
U.S. Cl.
CPC ...
H05B 45/345 (2020.01); H05B 45/14 (2020.01); H05B 45/325 (2020.01); H05B 45/3725 (2020.01);
Abstract
A light emitting element drive device generates a single output current while switching a target current value for each of a plurality of light emitting elements, and supplies the single output current to the plurality of light emitting elements in a time division manner.