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. 06, 2023
Filed:
Sep. 13, 2021
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Soon Sung An, Icheon-si, KR;
Kwan Su Shon, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01); H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
G11C 7/1048 (2013.01); G11C 7/1057 (2013.01); G11C 7/1084 (2013.01); H03K 19/0005 (2013.01); G11C 2207/2254 (2013.01);
Abstract
A data input buffer includes a plurality of buffer units configured to receive a first impedance calibration code and a second impedance calibration code, wherein each of the plurality of buffer units outputs an offset detected with a first input terminal and a second input terminal thereof short-circuited, as write data, and wherein a buffer unit corresponding to a current value of the first impedance calibration code among the plurality of buffer units is configured to correct the offset according to the second impedance calibration code.