Patents by Inventor Da Seul LEE

Da Seul LEE 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).

  • Data storage device for refreshing data and operating method thereof
    Patent number: 11961549
    Abstract: A data storage device may include a storage including a plurality of storage regions each composed of a plurality of pages; and a controller. The controller is configured to select a plurality of target open regions from open regions among the storage regions on the basis of health information of the open regions, in each of which a programmed page and an unprogrammed page coexist, and perform control so that refresh operations for the respective target open regions are performed in a time-distributed manner.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 16, 2024
    Assignee: SK hynix Inc.
    Inventors: Seon Ju Lee, Da Seul Lee
  • Memory system and operating method determining target status read check period in thermal throttling mode
    Patent number: 11854659
    Abstract: A memory system and a method of operating the memory system are provided. The memory system may determine, on a determination that the memory system enters thermal throttling mode, a target status read check period based on threshold voltage distribution offset for the target memory die, and set a timer to transmit a status read command for the target memory die to the memory device based on the target status read check period.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: December 26, 2023
    Assignee: SK hynix Inc.
    Inventors: Da Seul Lee, Seon Ju Lee, You Min Ji
  • MEMORY SYSTEM AND OPERATING METHOD DETERMINING TARGET STATUS READ CHECK PERIOD IN THERMAL THROTTLING MODE
    Publication number: 20230075808
    Abstract: A memory system and a method of operating the memory system are provided. The memory system may determine, on a determination that the memory system enters thermal throttling mode, a target status read check period based on threshold voltage distribution offset for the target memory die, and set a timer to transmit a status read command for the target memory die to the memory device based on the target status read check period.
    Type: Application
    Filed: March 3, 2022
    Publication date: March 9, 2023
    Inventors: Da Seul LEE, Seon Ju LEE, You Min JI
  • DATA STORAGE DEVICE FOR REFRESHING DATA AND OPERATING METHOD THEREOF
    Publication number: 20230069656
    Abstract: A data storage device may include a storage including a plurality of storage regions each composed of a plurality of pages; and a controller. The controller is configured to select a plurality of target open regions from open regions among the storage regions on the basis of health information of the open regions, in each of which a programmed page and an unprogrammed page coexist, and perform control so that refresh operations for the respective target open regions are performed in a time-distributed manner.
    Type: Application
    Filed: March 23, 2022
    Publication date: March 2, 2023
    Inventors: Seon Ju LEE, Da Seul LEE
  • DATA STORAGE DEVICE, OPERATION METHOD THEREOF, AND STORAGE SYSTEM INCLUDING THE SAME
    Publication number: 20200174921
    Abstract: A data storage device includes a storage configured to include a plurality of memory blocks and a controller configured to control data input/output to/from the storage. Wherein the controller comprises a command queue configured to queue a host command transmitted from a host device and a force garbage collection controller configured to control force garbage collection to be performed in preference to the queued host command when a block requiring the force garbage collection is detected from the plurality of memory blocks.
    Type: Application
    Filed: July 31, 2019
    Publication date: June 4, 2020
    Inventor: Da Seul LEE