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:
Jul. 09, 2024

Filed:

Aug. 04, 2023
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventor:

Yoshihisa Kojima, Kawasaki Kanagawa, JP;

Assignee:

Kioxia Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/56 (2006.01); G11C 7/04 (2006.01); G11C 16/04 (2006.01); G11C 16/08 (2006.01); G11C 16/10 (2006.01); G11C 16/26 (2006.01); G11C 16/32 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/32 (2013.01); G11C 7/04 (2013.01); G11C 11/5628 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01); G11C 16/10 (2013.01); G11C 16/26 (2013.01); G11C 16/3495 (2013.01); G11C 2211/5648 (2013.01);
Abstract

A memory system includes a nonvolatile memory configured to execute one of a plurality of read operations, including a first read operation and a second read operation, and a memory controller configured to issue a read command to the nonvolatile memory to cause the nonvolatile memory to execute one of the plurality of read operations. The memory controller is configured to receive a read request, estimate a reliability level of a result of a read operation to be executed by the nonvolatile memory to read data from a physical address specified in the read request, select one of the first and second read operations to be executed first in a read sequence corresponding to the read request by the nonvolatile memory based on the estimated reliability level, and instruct the nonvolatile memory to execute the selected read operation.


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