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:
Sep. 22, 2015
Filed:
Dec. 15, 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 ...
H03M 1/12 (2006.01); H03K 5/1252 (2006.01); H03K 5/24 (2006.01); H03M 1/34 (2006.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H03K 5/1252 (2013.01); H03K 5/2481 (2013.01); H03M 1/34 (2013.01); H04N 5/378 (2013.01);
Abstract
A comparator includes a first amplification unit suitable for differentially amplifying a pixel signal and a ramp signal, a second amplification unit suitable for amplifying a signal outputted from the first amplification unit and outputting a comparison result, a current control unit suitable for controlling a current flow in response to the comparison result and a current compensation and noise removal unit suitable for compensating for current and removing noise under control of the current control unit.