公开(公告)号：US20220155971A1

公开(公告)日：2022-05-19

申请号：US17393643

申请日：2021-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunkyo OH ,  Sanghyun CHOI ,  Kangho ROH

IPC: G06F3/06

Abstract: A method of measuring durability of a nonvolatile memory device that includes a plurality of memory blocks, the method including: periodically receiving a read command for a first memory block among the plurality of memory blocks; periodically performing a read operation on the first memory block based on the read command; periodically outputting at least one cell count value associated with the first memory block based on a result of the read operation; and periodically storing durability information associated with the first memory block in response to a periodic reception of the durability information, the durability information being obtained by accumulating the at least one cell count value.

公开(公告)号：US20210050067A1

公开(公告)日：2021-02-18

申请号：US16819374

申请日：2020-03-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunkyo OH ,  Jinbaek SONG ,  Kangho ROH

IPC: G11C16/34 ,  G11C16/26 ,  G11C16/16 ,  G06K9/62 ,  G06N3/04

Abstract: A memory system includes a memory device including a plurality of blocks, a buffer storing degradation information regarding at least one of the plurality of blocks, and a memory controller configured to determine a degradation level of the block corresponding to the read request based on the degradation information, in response to a read request from a host, infer a read level corresponding to the read request based on the degradation level, and read data from the memory device based on the read level.

公开(公告)号：US20220291864A1

公开(公告)日：2022-09-15

申请号：US17691758

申请日：2022-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungjun YANG ,  Kangho ROH

IPC: G06F3/06 ,  G06N20/00

Abstract: Disclosed is an operation method of a storage device supporting a multi-stream, which includes receiving an input/output request from an external host, generating a plurality of stream identifier candidates by performing machine learning on the input/output request based on a plurality of machine learning models that are based on different machine learning algorithms, generating a model ratio based on a characteristic of the input/output request, applying the model ratio to the plurality of stream identifier candidates to allocate a final stream identifier for the input/output request, and storing write data corresponding to the input/output request in a nonvolatile memory device of the storage device based on the final stream identifier.

公开(公告)号：US20210366562A1

公开(公告)日：2021-11-25

申请号：US17395872

申请日：2021-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunkyo OH ,  Jinbaek SONG ,  Kangho ROH

IPC: G11C16/34 ,  G11C16/26 ,  G06N3/04 ,  G06K9/62 ,  G11C16/16

Abstract: A memory system includes a memory device including a plurality of blocks, a buffer storing degradation information regarding at least one of the plurality of blocks, and a memory controller configured to determine a degradation level of the block corresponding to the read request based on the degradation information, in response to a read request from a host, infer a read level corresponding to the read request based on the degradation level, and read data from the memory device based on the read level.

公开(公告)号：US20170060443A1

公开(公告)日：2017-03-02

申请号：US15217957

申请日：2016-07-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kangho ROH

IPC: G06F3/06

CPC classification number: G06F3/0613 ,  G06F3/0616 ,  G06F3/0634 ,  G06F3/0679 ,  G11C16/0483 ,  G11C16/10

Abstract: Provided are a storage device and a method for controlling thereof. Some embodiments include a method, comprising: receiving target performance information by a storage device; comparing the target performance information with maximum performance information by the storage device; and adjusting an incremental step pulse program (ISPP) operation performed on a memory cell of the storage device in response to the comparing of the target performance information with maximum performance information.

Abstract translation: 提供一种存储装置及其控制方法。 一些实施例包括一种方法，包括：通过存储设备接收目标性能信息; 通过存储装置将目标性能信息与最大性能信息进行比较; 以及响应于目标性能信息与最大性能信息的比较，调整对存储设备的存储器单元执行的增量步进脉冲程序（ISPP）操作。

公开(公告)号：US20210200454A1

公开(公告)日：2021-07-01

申请号：US17038371

申请日：2020-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeonghui KIM ,  Jungmin SEO ,  Kangho ROH ,  Hyeongyu MIN ,  Jooyoung HWANG

IPC: G06F3/06 ,  G06N20/00

Abstract: A method includes sampling input/output requests from a host to generate sampled input/output requests; classifying the sampled input/output requests into clusters using an unsupervised learning algorithm; determining a hot data range based on a characteristic of the clusters; and incorporating the determined hot data range into a hot data table.