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. 26, 2016
Filed:
Oct. 11, 2013
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Young-Chul Sohn, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/335 (2011.01); H04N 5/365 (2011.01); H04N 5/374 (2011.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H04N 5/3658 (2013.01); H04N 5/374 (2013.01); H04N 5/378 (2013.01);
Abstract
A CMOS image sensor may include an active pixel sensor suitable for generating a pixel signal corresponding to incident light, a reference pixel array suitable for shielding incident light and generate a reference value, a readout circuit suitable for comparing the pixel signal and the reference value with a ramp signal and for removing a first noise of the pixel signal in a common mode, and a pixel signal processing circuit suitable for performing a linear operation on an output signal from the readout circuit and the reference value, and for removing a second noise of the pixel signal in the common mode.