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:
Apr. 24, 2007
Filed:
Mar. 09, 2005
Applicants:
Chang Woo Ha, Kyunggi-Do, KR;
Kyoung Soo Kwon, Kyunggi-Do, KR;
Deuk Hee Park, Seoul, KR;
Sang Cheol Shin, Kyunggi-Do, KR;
Inventors:
Chang Woo Ha, Kyunggi-Do, KR;
Kyoung Soo Kwon, Kyunggi-Do, KR;
Deuk Hee Park, Seoul, KR;
Sang Cheol Shin, Kyunggi-Do, KR;
Assignee:
Samsung Electro-Mechanics Co., Ltd., Kyunggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a circuit for compensating for an offset voltage of a monitoring photodiode. After the offset voltage is measured in a photodiode test, current source and offset resistors are added according to the measured resistances, thereby compensating for the offset voltage.