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. 29, 2022

Filed:

Mar. 24, 2021
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Ching-Chung Lai, Hsinchu County, TW;

Lian-Chun Lee, Hsinchu County, TW;

Chun-Shu Chen, Hsinchu County, TW;

Assignee:

SK hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 12/10 (2016.01); G06F 12/08 (2016.01); G06F 12/1009 (2016.01); G06F 12/0891 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 12/0253 (2013.01); G06F 12/0891 (2013.01); G06F 12/1009 (2013.01); G06F 2212/7201 (2013.01);
Abstract

The memory system comprises nonvolatile memory devices each including plural superblocks and a controller. The controller is configured to select a victim superblock including a smaller number of valid pages than any among remaining superblocks, exchange a greater-valid-pages block with a smaller-valid-pages block, and control the memory device to perform a garbage collection operation on the victim superblock, wherein the greater-valid-pages block is included in the victim superblock and the smaller-valid-pages block is included in one among the remaining superblocks, and wherein the smaller-valid-pages block has a smaller number of valid pages than the greater-valid-pages block.


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