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:
Jun. 11, 2019
Filed:
Mar. 30, 2017
Applicant:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Inventors:
Young Do Jung, Ansan-si, KR;
Sung Ho Jin, Ansan-si, KR;
Sang Wook Han, Ansan-si, KR;
Hye Man Jung, Ansan-si, KR;
Assignee:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); F21S 2/00 (2016.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); F21S 2/00 (2013.01); H05B 33/08 (2013.01); H05B 33/083 (2013.01); H05B 33/0809 (2013.01); H05B 33/0815 (2013.01); H05B 33/0848 (2013.01); H05B 37/02 (2013.01);
Abstract
An alternating current sequential drive type LED lighting device having improved flicker performance and being capable of reducing the light output deviation of the LED lighting device generated during operation intervals by removing nonluminous intervals of the LED lighting device by means of a loop-back compensation unit.