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:
May. 23, 2023
Filed:
Jul. 01, 2022
Applicant:
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Inventor:
Hyun Wook Han, Icheon-si Gyeonggi-do, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/017 (2006.01); H03L 7/081 (2006.01); G06F 1/10 (2006.01); H03K 5/01 (2006.01); G06F 1/06 (2006.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
H03K 3/017 (2013.01); G06F 1/06 (2013.01); G06F 1/10 (2013.01); H03K 5/00006 (2013.01); H03K 5/01 (2013.01); H03L 7/0812 (2013.01);
Abstract
A duty correction device includes a global duty correction circuit and a local duty correction circuit. The global duty correction circuit performs a global duty correction operation on a first clock signal and a second clock signal based on a local correction signal. The local duty correction circuit performs a local duty correction by detecting phases of the first and second clock signals, and enables the local correction signal when a number of the local duty correction operation reaches a threshold value.