Skhynix Inc.

University of Illinois

Hyung Jin Lim

Myeong Joon Kang

Jun Hee Ryu

Kwang Jin Ko

Miseon Han

Jongryool Kim

Jian Huang

Jong Ryool Kim

Pui York Wong

Chang Hwan Youn

Luyi Kang

Xiaohao Wang

Suchang Kim

A data storage device includes a nonvolatile memory device, a volatile memory device, a data encryption circuit configured to encrypt data outputted from the nonvolatile memory device, a data decryption circuit configured to decrypt encrypted data output from the data encryption circuit and configured to provide the decrypted data to the volatile memory device, and a processor configured to perform a first process that controls installation of a first in-storage program in the data storage device, a second process configured to manage a mapping table storing a relation between a logical address and a physical address of the nonvolatile memory device, and a third process configured to execute the first in-storage program.

Data storage device performing in-storage processing

A heterogeneous memory system includes a memory device including first and second memories and a controller including a cache. The controller identifies memory access addresses among addresses for memory regions of the memory device; track, for a set period, a number of memory accesses for each memory access address; classify each memory access address into a frequently accessed address or a normal accessed address based on the number of memory accesses in the set period; and allocate the first memory for frequently accessed data associated with the frequently accessed address and the second memory for normal data associated with the normal accessed address.

Data tiering in heterogeneous memory system

A method for operating a controller configured to control subsystems in a network, each subsystem including a plurality of memory regions, includes testing a compressibility ratio of data and selecting, according to the compressibility ratio, memory regions for storing the data and replicated data.

Data storage system for data distribution and data restoration based on compressibility ratio of data and operating method of controller for controlling the data distribution and data restoration

A memory system includes a non-volatile memory device and a controller. The non-volatile memory device includes plural memory groups storing plural chunks. The controller is capable of generating the plural chunks including data chunks and parity chunks based on original data, assign different priorities to the data chunks and the parity chunks, and recovering at least one chunk among the plural chunks based on the different priorities when an operation regarding the at least one chunk fails.

Apparatus and method for encoding and decoding operations to protect data stored in a memory system

A host handles reliability management of memory systems. The host analyzes characteristics of data associated with a select memory system among the memory systems. The host determines a reliability control mode and one or more reliability schemes among reliability schemes to be applied to the select memory system based on the characteristics. The host provides reliability management information indicating the reliability control mode to the select memory system. The plurality of reliability schemes includes error correction code (ECC), read retry, intra redundancy and refresh schemes.

Data processing system including host with reliability management of memory systems and method for the same

Growing community of inventors

Gyeonggi-do, South Korea

Hyung Jin Lim