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:
Jun. 13, 2017
Filed:
Sep. 11, 2015
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 5/378 (2011.01); H03K 4/56 (2006.01); H04N 5/3745 (2011.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H03K 4/56 (2013.01); H04N 5/3745 (2013.01);
Abstract
Disclosed are a ramp signal generator capable of reducing the size of a feedback capacitor by using a current subtraction and a CMOS image sensor using the same. The ramp signal generator may include a current supply unit suitable for supplying a first current; a current subtraction unit suitable for subtracting the first current from a second current, or the second current from the first current; and a ramp signal generation unit suitable for generating a ramp signal according to a third current and a reference voltage. The third current is a result of the subtraction.