Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Sung-Won Jeong

Jun-Won Suh

Young-Seung Na

Chan-Gyun Shin

Keun-Yong Lee

Sangwook Kim

Moon-Sang Kwon

Hee-Woong Kang

Sang-Kyun Kang

In-Seob Song

Kyoung-Hwan Choi

Jinkyu Jeong

Joonwon Lee

Hwanju Kim

Young-Hoi Heo

Yun-Gun Park

A memory device includes an unmapped read control module and a page buffer. The unmapped read control module is configured to receive a read command from a host, determine whether the read command is an unmapped read command, and output a memset command when the read command is the unmapped read command. The page buffer is configured to generate unmapped data by performing a memset operation in response to the memset command. The memset operation does not include a read operation for a memory cell array.

Memory device and memory system performing an unmapped read

In a method of throttling temperature of a nonvolatile memory device including a memory cell array, a current temperature of the nonvolatile memory device may be detected periodically. The current temperature may be compared with a reference temperature. Whether an external input/output command, which is provided by a memory controller, exists may be determined when the current temperature is lower than the reference temperature. An input/output operation, which corresponds to the external input/output command, may be performed on the memory cell array when the external input/output command exists. A desired and/or alternatively predetermined internal input/output operation may be performed on the memory cell array regardless of a command from the memory controller when the external input/output command does not exist.

Nonvolatile memory device and method of throttling temperature of nonvolatile memory device

A method of operating a data processing system includes transmitting process information indicating that a first process is classified as a critical process or a non-critical process to a kernel area, wherein the process information is generated in an application area, and the application area and the kernel area define a host. When the first process is classified as a critical process based on the process information, a first fastpath write signal is provided, using the kernel area, to a memory system to perform a fastpath write operation of first data for performing the first process. When the first process is classified as a non-critical process, a first slowpath write signal is provided to the memory system to perform a slowpath write operation of the first data. The fastpath write operation has a higher write speed than the slowpath write operation.

Data processing system and method of operating the same

Provided is a storage device configured to store a file system including (1) a personality oriented file information (PFI) directory entry including a first directory entry having a file allocation table (FAT) structure, and a second directory entry having a structure different from that of the first directory entry, the second directory entry including additional information instructing an access device on at least one parameter associated with creation and storing of a storage file, and (2) an entry table including location information of the PFI directory entry.

File system and file storing method

A fuel cell stack includes a plurality of membrane electrode assemblies (MEAs) and a stamped metal separator. The metal separator is positioned between the membrane electrode assemblies. The separator includes at least one channel on both surfaces of the separator formed by a stamping process. The separator comprises a plurality of holes, each of which form a manifold communicating with each the channels.

Fuel cell stack

A fuel cell stack including an electricity generating unit for generating electrical energy by electrochemically reacting a fuel and an oxidizing agent, the electricity generating unit including: a first separator; a second separator; a membrane electrode assembly (MEA) between the first separator and the second separator, each of the first and second separators including a channel on a surface facing the MEA and a manifold in the surface facing the MEA, the manifold communicating with the channel; and a gasket, positioned at an outer circumference portion of an area where the MEA is positioned, for sealing a space between the first and second separators and for covering an open area of a channel extension area of at least one of the first and second separators where the manifold communicates with the channel.

Stack for fuel cell

Growing community of inventors

Suwon-si, South Korea

Sung-Won Jeong