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.

Date of Patent:
Nov. 25, 2025

Filed:

Dec. 04, 2023
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventor:

Saeng Hwan Kim, Gyeonggi-do, KR;

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40615 (2013.01); G11C 11/40622 (2013.01); G11C 11/4096 (2013.01);
Abstract

A memory system includes: a memory controller configured to: issue a normal refresh command and a refresh management command, and adjust, based on a replacement counting value, an issuance frequency of at least one of the normal refresh command and the refresh management command; and a memory device configured to: perform a first refresh operation corresponding to the normal refresh h command and a second refresh operation corresponding to the refresh management command, and replace the second refresh operation with the first refresh operation according to a memory information signal, count a number of times of the replacing to generate the replacement counting value, and provide the replacement counting value.


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