Patents Assigned to ESSENCORE Limited
  • Patent number: 10853241
    Abstract: Disclosed is a data storing method performed by a controller. The method includes storing an attribute value of first data to be written to a nonvolatile memory device in a command queue, determining whether the first data is garbage collection data on the basis of the attribute value when a power interruption occurs, and writing the first data to the nonvolatile memory device according to a result of the determination of whether the first data is garbage collection data or not.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: December 1, 2020
    Assignees: ESSENCORE Limited
    Inventors: Young Joon Choi, Seok Cheon Kwon
  • Publication number: 20190362796
    Abstract: Disclosed is a method of operating a storage device including a NAND flash memory including memory cells grouped into blocks, each block being divided into pages. According to the method, a controller in the storage device loads, onto a memory region, a look-up table containing first read reference voltage sets corresponding to respective retention degradation stages of the NAND flash memory and second read reference voltages sets corresponding to respective pages which vary in terms of the threshold voltages. Subsequently, the controller performs a read operation on the memory cells on a per-block basis by using the first read reference voltage set corresponding to a current retention degradation stage, the second read reference voltage set corresponding to a current page, or both, until all of the memory cells in a current block are correctly read.
    Type: Application
    Filed: May 30, 2018
    Publication date: November 28, 2019
    Applicants: ESSENCORE Limited
    Inventors: Young Joon Choi, Seok Cheon Kwon
  • Publication number: 20190354293
    Abstract: A non-volatile memory system includes a NAND flash memory device including at least one NAND flash memory and a memory controller that controls the NAND flash memory, a host device including a file system and a host controller that receives a command from the file system to provide the command to the NAND flash memory device, and a save storage manager that monitors a number and location of run-time bad blocks in the NAND flash memory, monitors a logical address use-state of the file system, and reduces a logical address space which the file system is able to use as the number of the run-time bad blocks is increased.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 21, 2019
    Applicants: The-AiO Inc., ESSENCORE Limited
    Inventors: Seok Cheon Kwon, Seung Hyun Han
  • Publication number: 20190354475
    Abstract: Disclosed is a data storing method performed by a controller. The method includes storing an attribute value of first data to be written to a nonvolatile memory device in a command queue, determining whether the first data is garbage collection data on the basis of the attribute value when a power interruption occurs, and writing the first data to the nonvolatile memory device according to a result of the determination of whether the first data is garbage collection data or not.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 21, 2019
    Applicants: ESSENCORE Limited
    Inventors: Young Joon Choi, Seok Cheon Kwon
  • Patent number: D956706
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: July 5, 2022
    Assignee: ESSENCORE Limited
    Inventor: Young Suk Chung
  • Patent number: D962880
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: September 6, 2022
    Assignee: ESSENCORE Limited
    Inventor: Young Suk Chung