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:
Aug. 25, 2015
Filed:
Mar. 18, 2013
Applicant:
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Inventor:
Seok Joon Kang, Icheon-si, KR;
Assignee:
SK Hynik Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/12 (2006.01); G11C 7/14 (2006.01); G11C 13/00 (2006.01); G11C 8/08 (2006.01); G11C 11/56 (2006.01); G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
G11C 7/14 (2013.01); G11C 5/14 (2013.01); G11C 7/12 (2013.01); G11C 8/08 (2013.01); G11C 11/5678 (2013.01); G11C 13/0004 (2013.01); G11C 13/0009 (2013.01); G11C 13/0038 (2013.01); G11C 13/0069 (2013.01); G11C 2013/0078 (2013.01); G11C 2013/0092 (2013.01);
Abstract
A voltage generation circuit includes a charge unit and a discharge unit. The charge unit is configured for raising a level of a ramp voltage to a predetermined level in response to a control signal. The discharge unit is configured for lowering the level of the ramp voltage in response to the control signal. The discharge unit uses a constant current source to lower the level of the ramp voltage.