Samsung Electronics Co., Ltd.

Song Ho Yoon

Sil Wan Chang

Byung June Song

Jea-Young Kwon

Jae-Kun Lee

Hwan Mook Kim

Dong-Woo Kim

Kyoung Back Lee

Hyung-Kyun Byun

Wook Han Jeong

Jae Sun No

Young-Jin Park

Joo Young Hwang

Jeong Hur

Duck Hyun Chang

Woon Jae Chung

Jae Gyu Lee

A storage device includes: a buffer to receive first data and second data from outside, and store the first data and the second data on a first page; a non-volatile memory to store the first data and the second data in a first block; and a controller to perform a program operation that programs the first and second data in free blocks different from each other through a garbage collection. The first data may include a first stream class number identifying characteristics of the first data, and the second data may include a second stream class number identifying characteristics of the second data and is different from the first stream class number. The controller may transmit information of the program operation to the outside before performing the program operation. The controller may perform the program operation when receiving a program execution permission command from the outside.

Storage device for classifying data based on stream class number, storage system, and operating method thereof

A storage device includes a descramble module configured to descramble at least a portion of a read command, which includes logical block address (LBA) information and first meta information, into first signature information and first physical address (PA) information, for accessing a flash memory. A compare module is provided, which is configured to compare the first signature information against stored signature information to thereby determine an equivalency or discrepancy therebetween. An access module is provided, which is configured to use the first PA information to access a data region of the flash memory, upon determination of the equivalency by said compare module.

Storage devices that support cached physical address verification and methods of operating same

A storage system may include a memory device including a first region including a single-level cell and a second region different from the first region, and a storage controller configured to read data from the first region at a first gear level of a plurality of gear levels, determine an error level of the read data and a state of the memory device, and change the first gear level to a second gear level of the plurality of gear levels based on the determined error level of the data and the determined state of the memory device.

Storage controller for selecting a gear level of a storage device and storage system including the same

A storage device is provided. The storage device includes a memory device including a memory cell array configured to store metadata and main data and a storage controller configured to access the memory device and control the memory device, wherein the storage controller is configured to read data from the memory device at a speed adaptively varying to a first read speed or a second read speed according to a state of the memory device, the second read speed being faster than the first read speed.

Storage device and operating method thereof

A data storage device including a first non-volatile memory configured to store data, and a device controller configured to control the first non-volatile memory may be provided, and wherein the device controller may be configured to receive a data read command including a first logical address of the first non-volatile memory, a first physical address corresponding to the first logical address, and first status information of the first non-volatile memory corresponding to the first physical address, determine a first read level, using the first status information included in the data read command, and apply a voltage of the first read level to a first word line of the first non-volatile memory corresponding to the first physical address to read data.

Data storage device and data storage system

A storage device may include, at least one memory device including at least a first single-level cell (SLC) region, a second SLC region, and at least one multi-level cell (MLC) region, the first SLC region having a higher data read speed than the second SLC region, and the second SLC region having a higher data read speed than the at least one MLC region, and a storage controller configured to control the migration of data among the first SLC region, the second SLC region, and the at least one MLC region.

Storage controller and storage device including the same

A method of operating a universal flash storage (UFS) device communicating with a UFS host via a link is provided. The method determines in the UFS device whether a warm reset of the link is necessary while the UFS device is communicating with the UFS host via the link. Upon determining that the warm reset of the link is necessary, the UFS device initiates the warm reset of the link.

Method operating universal flash storage (UFS) device, method operating UFS host, and method operating system including both

A method of operating an eMMC system includes receiving a first command defining a first operation from the host, and storing the first command in a first command register among N command registers, and receiving a second command defining a second operation from the host, and storing the second command in a second command register among the N command registers, wherein the second command is received while the first operation is being performed.

Growing community of inventors

Yongin-si, South Korea

Song Ho Yoon