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:
Mar. 11, 2008
Filed:
Apr. 28, 2006
Pyong-yong Seong, Seoul, KR;
Jong-koog Lee, Seoul, KR;
Kun-soo Kim, Seoul, KR;
Yong-jun Cho, Gyeonggi-do, KR;
Sung-du Kwon, Seoul, KR;
Pyong-yong Seong, Seoul, KR;
Jong-koog Lee, Seoul, KR;
Kun-soo Kim, Seoul, KR;
Yong-jun Cho, Gyeonggi-do, KR;
Sung-du Kwon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
An apparatus and method for detecting beam power generated by a plurality of light sources, using a single device. The apparatus includes a light-receiving unit that receives the beam power generated by one of a plurality of light sources, and an amplifying unit that selects a gain, amplifies the beam power received by the light-receiving unit according to the selected gain, and outputs the beam power amplified as a detected beam power. According to the apparatus and method, received beam power (or amplification gain) is amplified by a gain determined according to the characteristics of the respective light sources. Thus, it is possible to provide the detected beam power in consideration of a sufficient dynamic range for the each light source, thereby realizing effective APC.