Skhynix Inc.

Soong Sun Shin

Duck Hoi Koo

Jin Soo Kim

Cheon Ok Jeong

Yong Kim

Yong Tae Kim

Sang Hyun Kim

Han Choi

Ji Hoon Lee

Min Hwan Moon

Yong Chul Kim

Do Hyun Kim

Byoung Min Jin

Jang Hwan Jun

Dae Hong Kim

Je Uk Bak

Do Geon Park

A storage device includes a plurality of memory devices, a plurality of cores controlling the plurality of memory devices, and a host interface configured to select a first core of the plurality of cores to store a plurality of meta data in a memory device controlled by the first core, and configured to switch to a second core from the plurality of cores to store the plurality of meta data in a memory device controlled by the second core, when the number of operations for storing a first meta data, from among the plurality of meta data, by the first core exceeds a threshold value.

Storage device for a plurality of meta data and method of operating the same

An event log management technique may include determining a new event associated with a storage device has occurred, determining a new event log can be stored in an event log chunk stored in an event log buffer, and deleting a number of old event logs starting from an oldest event log among old event logs of the event log chunk stored in the event log buffer if the new event log can be stored in the event log chunk stored in the event log buffer. The number of old event logs being deleted corresponds to a size of a new event log associated with the new event. The technique may also include storing the new event log starting at a start position of the oldest event log.

Event log management method, controller and storage device

Provided herein may be a storage device and a method of operating the same. In a storage device for controlling operational performance depending on temperature, a memory controller configured to control a memory device may include an internal temperature sensing unit configured to generate an internal temperature information by sensing a temperature of the memory controller and a performance adjustment unit configured to receive an external temperature information from an external temperature sensing unit, and controlling operational performance of the memory controller using the internal temperature information and the external temperature information, wherein the external temperature information represents a temperature of the memory device.

Memory controller, storage device and method for adjusting a data input/output speed of the controller based on internal and external temperature information

A controller configures a map table including a map entry associating different address schemes with each other. The controller is configured, for performing map table configuration, to find a target map entry among previous map entries in the map table, merge the current map entry into the target map entry to generate a merged map entry when the target map entry is found, and store the merged map entry in the map table. The target map entry and a current map entry include at least some information which is overlapped.

Apparatus and method for handling data stored in a memory system

A memory controller and a method of operating the same may move data from a first memory buffer to a second memory buffer. The memory controller may include a host controller configured to receive host data corresponding to a program request from a host and to control transmission of the host data so that the host data is programmed to a memory device, a flash controller configured to receive flash data corresponding to a read request from the memory device and control transmission of the flash data to the host, and a memory buffer component including the first memory buffer and the second memory buffer configured to store the host data, flash data, or both. The memory controller is configured to control the memory buffer component so that the host data, flash data, or both are moved from the first memory buffer to the second memory buffer.

Memory controller and method of operating the same

A memory system includes a nonvolatile memory apparatus, and a write-same manager configured to perform a write-same operation on the nonvolatile memory apparatus, wherein the write-same manager merges a first write-same operation and a second write-same operation by comparing first operation information of the first write-same operation and second operation information of the second write-same operation.

Memory system performing write-same operation and operating method thereof

An operating method for a data storage device includes providing a nonvolatile memory device including a plurality of pages; segmenting an address map which maps a logical address provided from a host device and a physical address of the nonvolatile memory device, by a plurality of address map segments according to a segment size that is set depending on a quality of service time allowed to process a request of the host device and an unprocessed workload; and flushing at least one of the address map segments in the nonvolatile memory device after processing the unprocessed workload.

Data storage device and operating method thereof

A data storage device includes a nonvolatile memory device including a plurality of memory blocks and a controller for controlling the nonvolatile memory device. A plurality of management blocks includes first and second management blocks managed by the controller. The second management block stores start data and then stores integrity data. The first management block stores a storage location of the second management block. An integrity checker checks integrity of data associated with the first and second management blocks.

Provided herein may be a storage device and a method of operating the same. A storage device for protecting the storage device from physical movement may include a nonvolatile memory device, a sensor unit configured to collect information about physical movement of the storage device, and a memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device, based on a sensor value acquired from the sensor unit.

Storage device and method of operating the same

A method for operating a data storage device which includes a nonvolatile memory device including a plurality of memory blocks, includes generating a valid page count table including the number of valid pages of each of closed blocks among the plurality of memory blocks in which data are written in all pages thereof and the number of valid pages of at least one open block among the plurality of memory blocks in which data is written in a part of pages thereof; generating a valid page scan table including a scan pointer for scanning the number of valid pages of the open block; and backing up the valid page count table and the valid page scan table in a meta block among the plurality of memory blocks.

A memory system includes a memory device comprising a plurality of memory cells storing data, and configured to perform one or more of a write operation, read operation and erase operation on the plurality of memory cells; and a controller configured to control an operation of the memory device, wherein the controller is configured to: cache a logical block addressing (LBA) mapping table from the memory device when the memory system is powered on by driving power applied thereto; and transfer a direct memory access (DMA) setup to a host when the LBA mapping table is cached.

Controller for minimizing flushing operations for mapping table, memory system and operating method thereof

There are provided a storage device having improved security and an operating method thereof. In a storage device including a memory controller for controlling a memory device including a plurality of memory blocks, the storage device includes: a host interface configured to receive an analog connection request signal provided by a host; and a host access controller configured to control access by the host according to host information acquired from the connection request signal.

Storage device and operating method thereof

A data storage device includes a nonvolatile memory device and a controller configured to control an operation of the nonvolatile memory device. The controller includes a volatile memory including a first index storage unit in which first index information for first data buffers are stored and a second index storage unit in which second index information for second data buffers are stored, a first central processing unit (CPU) configured to perform allocation and release of allocation of the first data buffers by accessing the first index storage unit of the volatile memory, and a second CPU configured to perform allocation and release of allocation of the second data buffers by accessing the second index storage unit of the volatile memory.

A data processing system includes a host device including a first volatile memory which includes an exclusive region and a shared region, and a first control unit; and a data storage device including a second control unit, and configured to store data to be accessed by the host device, wherein the first control unit adds a header information including an identification information and a state information, to data to be stored in the data storage device, and stores the data added with the header information, in the shared region, according to a request of the second control unit.

Growing community of inventors

Gyeonggi-do, South Korea

Soong Sun Shin