Samsung Electronics Co., Ltd.

Younwon Park

Jeong-Woo Park

Dong-Min Kim

Jooyoung Hwang

Jinhwan Choi

Byung-Ki Lee

Songho Yoon

Hyun-Sik Yun

Youngmoon Kim

Chun-Um Kong

Kyu-Hyung Kim

Do-Sam Kim

A storage device comprising: at least one nonvolatile memory; a buffer; and a memory controller configured to: receive data from a host; store the data in the buffer; and flush the data in the buffer to the at least one nonvolatile memory in response to an absence of communication with the host for a reference time duration.

Storage device operating to prevent data loss when communicating is interrupted

An operating method of a storage device that includes a nonvolatile memory device and a controller configured to control the nonvolatile memory device includes sending map data from the storage device to a host device, the map data mapping one or more of a plurality of physical addresses of the nonvolatile memory device to one or more of a plurality of logical addresses of the host device; receiving, at the storage device, a read request from the host device; if the read request includes a physical address, reading data from the nonvolatile memory device based on the included physical address; and if the read request does not include a physical address, translating a logical address of the read request into a first physical address, and reading data from the nonvolatile memory device based on the translated first physical address.

Storage device including nonvolatile memory device and controller, operating method of storage device, and method for accessing storage device

An operation method is for a storage device that includes a storing unit storing a plurality of error logs and a physical layer and exchanges an electrical signal with a host via the physical layer. The operation method includes receiving a debugging command from the host, setting a first value at a first attribute included in the physical layer in response to the debugging command, setting a second value different from the first value at the first attribute in response to a control of the host, setting one among the plurality of error logs at a second attribute based on the first attribute at which the second value is set, and transmitting the error log set at the second attribute to the host in response to a control of the host.

Operation method of storage device, operation method of host device, and operation method of user system including storage device and host device

A storage device includes a nonvolatile memory device including memory blocks divided into a first memory area and a second memory area; and a memory controller. In the case of programming specific attribute data, the memory controller determines a memory area in which the specific attribute data will be programmed according to a wear out ratio of the first memory area and a wear out ratio of the second memory area. The wear out ratio is a ratio of the current maximum erase count of memory blocks of a memory area with respect to the allowable maximum erase count of the memory area.

Storage device dynamically allocating program area and program method thereof

Storage devices including a flash memory and a memory controller, and write memory block allocating methods of the storage devices are provided. A write memory block allocating method may include storing a pre-allocation table in a Random Access Memory (RAM) of a memory controller. The pre-allocation table may include allocation order information of a pre-allocated memory block included in a flash memory. The method may also include receiving a write request from a host, determining whether a write memory block for the write request can be allocated according to the pre-allocation table and allocating the pre-allocated memory block as the write memory block according to the pre-allocation table when the write memory block can be allocated according to the pre-allocation table.

Growing community of inventors

Suwon-si, South Korea

Younwon Park