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:
Jan. 12, 2010
Filed:
Dec. 29, 2005
Applicant:
Bum Sik Kim, Suwon, KR;
Inventor:
Bum Sik Kim, Suwon, KR;
Assignee:
Dongbu Electronics, Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A CMOS image sensor includes a photo-transistor capable of performing photo-sensing and active amplification. The photo-transistor is installed to improve low illustration characteristics while maintaining an existing pixel operation. The CMOS image sensor also includes a reset transistor connected to the photo-transistor and adapted to perform a reset function, a drive transistor for acting as a source follower buffer amplifier in response to an output signal from the photo-transistor, and a switching transistor connected to the drive transistor and adapted to perform an addressing function.