Patents by Inventor Yun Chan SEO

Yun Chan SEO 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).

  • Publication number: 20250165184
    Abstract: When writing user data to a memory, a data synchronization indicator is set to a page to which the user data is written, depending on whether a data synchronization command is received from a host device. A guarantee for the user data requested by the host device may be provided, and operation efficiency of a storage device may be improved by reducing unnecessary operations when controlling the operation of the storage device.
    Type: Application
    Filed: March 21, 2024
    Publication date: May 22, 2025
    Inventor: Yun Chan SEO
  • Patent number: 11614895
    Abstract: The present technology relates to a memory controller capable of shortening a time required for a read operation by storing a map segment output based on a result of counting the number of times a map entry is called in a host. The memory controller controlling a memory device includes a central processing device configured to receive a read request from a host and perform an operation for outputting data corresponding to the read request to the host, and a flash translation layer configured to search for a map entry indicating a mapping relationship between a logical block address and a physical block address by receiving the logical block address corresponding to the read request from the central processing device, and store a read count table based on a result of searching the map entry.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 28, 2023
    Assignee: SK hynix Inc.
    Inventor: Yun Chan Seo
  • Publication number: 20220253245
    Abstract: The present technology relates to a memory controller capable of shortening a time required for a read operation by storing a map segment output based on a result of counting the number of times a map entry is called in a host. The memory controller controlling a memory device includes a central processing device configured to receive a read request from a host and perform an operation for outputting data corresponding to the read request to the host, and a flash translation layer configured to search for a map entry indicating a mapping relationship between a logical block address and a physical block address by receiving the logical block address corresponding to the read request from the central processing device, and store a read count table based on a result of searching the map entry.
    Type: Application
    Filed: July 20, 2021
    Publication date: August 11, 2022
    Inventor: Yun Chan SEO
  • Patent number: 11204846
    Abstract: There are provided a memory system and a method for operating the same. A memory system includes: a controller for queuing a plurality of commands and outputting control signals in response to the plurality of queued commands; and a memory device for performing a program operation in response to the control signals, wherein, when the program operation fails, the controller holds the plurality of queued commands.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: December 21, 2021
    Assignee: SK hynix Inc.
    Inventor: Yun Chan Seo
  • Patent number: 10852973
    Abstract: A data storage device includes a nonvolatile memory device including a plurality of memory blocks each of which includes a plurality of pages; and a controller suitable for obtain block physical to logical (P2L) data corresponding to a first memory block among the plurality of memory blocks, determine first and second target logical to physical (L2P) pages, one or more first target L2P segments stored in the first target L2P page and one or more second target L2P segments stored in the second target L2P page, based on the block P2L data and an L2P segment position table, obtain the first target L2P segments, and verify validity for one or more first P2L data included in the block P2L data, based on the first target L2P segments, wherein the controller obtains the second target L2P segments while verifying the validity for the first P2L data.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: December 1, 2020
    Assignee: SK hynix Inc.
    Inventors: Hoe Seung Jung, Yun Chan Seo
  • Publication number: 20200371885
    Abstract: There are provided a memory system and a method for operating the same. A memory system includes: a controller for queuing a plurality of commands and outputting control signals in response to the plurality of queued commands; and a memory device for performing a program operation in response to the control signals, wherein, when the program operation fails, the controller holds the plurality of queued commands.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Inventor: Yun Chan SEO
  • Patent number: 10761953
    Abstract: There are provided a memory system and a method for operating the same. A memory system includes: a controller for queuing a plurality of commands and outputting control signals in response to the plurality of queued commands; and a memory device for performing a program operation in response to the control signals, wherein, when the program operation fails, the controller holds the plurality of queued commands.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: September 1, 2020
    Assignee: SK hynix Inc.
    Inventor: Yun Chan Seo
  • Patent number: 10621087
    Abstract: A method for operating a data storage device includes storing an erase count corresponding to a physical address, as a reference value, in response to a first event; comparing a current value of the erase count with the reference value in response to a second event; and selectively performing a purge operation for the physical address, depending on a result of the comparing.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 14, 2020
    Assignee: SK hynix Inc.
    Inventors: Yun Chan Seo, Hoe Seung Jung
  • Publication number: 20190258405
    Abstract: A data storage device includes a nonvolatile memory device including a plurality of memory blocks each of which includes a plurality of pages; and a controller suitable for obtain block physical to logical (P2L) data corresponding to a first memory block among the plurality of memory blocks, determine first and second target logical to physical (L2P) pages, one or more first target L2P segments stored in the first target L2P page and one or more second target L2P segments stored in the second target L2P page, based on the block P2L data and an L2P segment position table, obtain the first target L2P segments, and verify validity for one or more first P2L data included in the block P2L data, based on the first target L2P segments, wherein the controller obtains the second target L2P segments while verifying the validity for the first P2L data.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Inventors: Hoe Seung JUNG, Yun Chan SEO
  • Patent number: 10282123
    Abstract: A data storage device includes a nonvolatile memory device including a plurality of memory blocks each of which includes a plurality of pages; and a controller suitable for obtain block physical to logical (P2L) data corresponding to a first memory block among the plurality of memory blocks, determine first and second target logical to physical (L2P) pages, one or more first target L2P segments stored in the first target L2P page and one or more second target L2P segments stored in the second target L2P page, based on the block P2L data and an L2P segment position table, obtain the first target L2P segments, and verify validity for one or more first P2L data included in the block P2L data, based on the first target L2P segments, wherein the controller obtains the second target L2P segments while verifying the validity for the first P2L data.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: May 7, 2019
    Assignee: SK hynix Inc.
    Inventors: Hoe Seung Jung, Yun Chan Seo
  • Publication number: 20190114239
    Abstract: There are provided a memory system and a method for operating the same. A memory system includes: a controller for queuing a plurality of commands and outputting control signals in response to the plurality of queued commands; and a memory device for performing a program operation in response to the control signals, wherein, when the program operation fails, the controller holds the plurality of queued commands.
    Type: Application
    Filed: May 15, 2018
    Publication date: April 18, 2019
    Inventor: Yun Chan SEO
  • Publication number: 20180225200
    Abstract: A method for operating a data storage device includes storing an erase count corresponding to a physical address, as a reference value, in response to a first event; comparing a current value of the erase count with the reference value in response to a second event; and selectively performing a purge operation for the physical address, depending on a result of the comparing.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 9, 2018
    Inventors: Yun Chan SEO, Hoe Seung JUNG
  • Publication number: 20180004420
    Abstract: A data storage device includes a nonvolatile memory device including a plurality of memory blocks each of which includes a plurality of pages; and a controller suitable for obtain block physical to logical (P2L) data corresponding to a first memory block among the plurality of memory blocks, determine first and second target logical to physical (L2P) pages, one or more first target L2P segments stored in the first target L2P page and one or more second target L2P segments stored in the second target L2P page, based on the block P2L data and an L2P segment position table, obtain the first target L2P segments, and verify validity for one or more first P2L data included in the block P2L data, based on the first target L2P segments, wherein the controller obtains the second target L2P segments while verifying the validity for the first P2L data.
    Type: Application
    Filed: October 31, 2016
    Publication date: January 4, 2018
    Inventors: Hoe Seung JUNG, Yun Chan SEO
  • Publication number: 20150120991
    Abstract: A data processing system includes a host device comprising an application and suitable for generating information on an attribute of the application and providing the information on the attribute of the application together with a request of the application and a data storage device suitable for writing data based on the information on the attribute of the application in response to the request of the application.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 30, 2015
    Applicant: SK hynix Inc.
    Inventors: Hui Won LEE, Eu Joon BYUN, Yun Chan SEO, Hoe Seung JUNG