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. 14, 2021
Filed:
Oct. 29, 2020
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Kwang Soon Kim, Icheon-si, KR;
Noh Hyup Kwak, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/017 (2006.01); H03K 5/151 (2006.01); G11C 7/22 (2006.01); G11C 11/4076 (2006.01); H03K 5/156 (2006.01);
U.S. Cl.
CPC ...
H03K 3/017 (2013.01); G11C 7/222 (2013.01); G11C 11/4076 (2013.01); H03K 5/151 (2013.01); H03K 5/1565 (2013.01);
Abstract
A duty cycle correction circuit may include a data alignment circuit, a correction value generation circuit, and a dock generation circuit. The data alignment circuit may align unit pattern data based on a strobe clock signal. The correction value generation circuit may generate a duty correction value by measuring the amount of charges corresponding to the aligned data. The clock generation circuit may correct the duty ratio of the strobe clock signal based on the duty correction value.