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, 2026
Filed:
Dec. 05, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kideok Han, Suwon-si, KR;
Ki-Seok Park, Suwon-si, KR;
Young-Hoon Son, Suwon-si, KR;
Do-Han Kim, Suwon-si, KR;
Min-Su Bae, Suwon-si, KR;
Yoenhwa Lee, Suwon-si, KR;
Insu Choi, Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A training method of a memory device adjusting an eye window of a data signal in response to a duty cycle adjuster (DCA) includes performing a first training operation that selects a first DCA code corresponding to a first internal clock signal having a phase difference of 180° relative to a reference internal clock signal, and performing a second training operation that selects a second DCA code and a third DCA code respectively corresponding to a second internal clock signal and a third internal clock signal having a phase difference of 90° and 270° relative to reference internal clock signal. In the first training operation, the eye window size of the data signal is measured in units of two unit intervals, and in the second training operation, the eye window size of the data signal is measured in units of one unit interval.