Patents by Inventor Chi Eun KIM

Chi Eun KIM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12292809
    Abstract: A storage device may store temperature log information in one or more log memory blocks according to a temperature storage level and determine the temperature storage level based on a temperature change amount over time of a temperature of the storage device. By storing the temperature log information less frequently when smaller changes in the temperature are expected than when larger changes are, efficiency of storing the temperature log information may be improved.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: May 6, 2025
    Assignee: SK hynix Inc.
    Inventor: Chi Eun Kim
  • Patent number: 12131034
    Abstract: A storage device and a method thereof determine a candidate memory block satisfying a set condition among a plurality of memory blocks when the temperature of a memory is equal to or higher than a first temperature as a target memory block. The target memory block is used to determine whether to apply a thermal throttling mode to a target operation to be executed on the memory when the temperature of the memory is equal or higher than a second temperature in order to avoid unnecessary thermal throttling.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: October 29, 2024
    Assignee: SK hynix Inc.
    Inventor: Chi Eun Kim
  • Publication number: 20240202090
    Abstract: A storage device may store temperature log information in one or more log memory blocks according to a temperature storage level and determine the temperature storage level based on a temperature change amount over time of a temperature of the storage device. By storing the temperature log information less frequently when smaller changes in the temperature are expected than when larger changes are, efficiency of storing the temperature log information may be improved.
    Type: Application
    Filed: May 11, 2023
    Publication date: June 20, 2024
    Inventor: Chi Eun KIM
  • Publication number: 20240152291
    Abstract: A storage device may migrate data stored in a partial data area of a volatile memory to a nonvolatile memory depending on a system temperature, and may deactivate the corresponding data area, whereby it is possible to variably adjust data areas on which a refresh operation is performed in the volatile memory. Since data areas on which a refresh operation is performed are adjusted depending on a system temperature, a storage device capable of adjusting the system temperature and preventing performance and reliability from degrading according to the system temperature may be provided.
    Type: Application
    Filed: March 27, 2023
    Publication date: May 9, 2024
    Inventor: Chi Eun KIM
  • Publication number: 20240078023
    Abstract: A storage device and a method thereof determine a candidate memory block satisfying a set condition among a plurality of memory blocks when the temperature of a memory is equal to or higher than a first temperature as a target memory block. The target memory block is used to determine whether to apply a thermal throttling mode to a target operation to be executed on the memory when the temperature of the memory is equal or higher than a second temperature in order to avoid unnecessary thermal throttling.
    Type: Application
    Filed: December 27, 2022
    Publication date: March 7, 2024
    Inventor: Chi Eun KIM
  • Patent number: 11294590
    Abstract: The present disclosure relates to an electronic device. A storage device having improved memory block use efficiency includes a plurality of memory blocks each including a plurality of pages storing data, an erase page storage configured to store erase page information about erase pages in a victim block among the plurality of memory blocks and a bad block controller configured to replace a fail page in which a program fail occurred with one of the erase pages, based on the erase page information, the fail page being one of the plurality of pages in one of the plurality of memory blocks other than the victim block.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 5, 2022
    Assignee: SK hynix Inc.
    Inventor: Chi Eun Kim
  • Patent number: 10977144
    Abstract: A memory system includes: a nonvolatile memory device including a plurality of memory blocks and spare blocks; and a memory controller configured to control the nonvolatile memory device. The nonvolatile memory device may store spare information to any one block of the memory blocks or the spare blocks. When a bad block is detected from the memory blocks, the nonvolatile memory device replaces the bad block with any one of the spare blocks according to the spare information.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: April 13, 2021
    Assignee: SK hynix Inc.
    Inventors: Chi Eun Kim, Soo Nyun Kim
  • Publication number: 20200026455
    Abstract: The present disclosure relates to an electronic device. A storage device having improved memory block use efficiency includes a plurality of memory blocks each including a plurality of pages storing data, an erase page storage configured to store erase page information about erase pages in a victim block among the plurality of memory blocks and a bad block controller configured to replace a fail page in which a program fail occurred with one of the erase pages, based on the erase page information, the fail page being one of the plurality of pages in one of the plurality of memory blocks other than the victim block.
    Type: Application
    Filed: February 14, 2019
    Publication date: January 23, 2020
    Inventor: Chi Eun KIM
  • Publication number: 20190188101
    Abstract: A memory system includes: a nonvolatile memory device including a plurality of memory blocks and spare blocks; and a memory controller configured to control the nonvolatile memory device. The nonvolatile memory device may store spare information to any one block of the memory blocks or the spare blocks. When a bad block is detected from the memory blocks, the nonvolatile memory device replaces the bad block with any one of the spare blocks according to the spare information.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 20, 2019
    Inventors: Chi Eun KIM, Soo Nyun KIM