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:
Aug. 21, 2012
Filed:
Jan. 30, 2009
Jong-jae Lee, Asan-si, KR;
Hyeon-yong Jang, Osan-si, KR;
Ho-young Kim, Cheonan-si, KR;
Hyung-ku Kang, Seoul, KR;
Jong-Jae Lee, Asan-si, KR;
Hyeon-Yong Jang, Osan-si, KR;
Ho-Young Kim, Cheonan-si, KR;
Hyung-Ku Kang, Seoul, KR;
Abstract
A method of driving a light source includes; converting an externally supplied direct current voltage into a first alternating current voltage, boosting the first alternating current voltage to a second alternating current voltage having a higher voltage than the first alternating current voltage, turning on the light source using the second alternating current voltage, detecting an arc noise detection voltage by adding arc noise generated from a high voltage terminal of the light source and arc noise generated from a low voltage terminal of the light source, and blocking the high voltage from being provided to the light source based on the detected arc noise detection voltage.