Patents by Inventor Chung Un NA

Chung Un NA 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: 11861223
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller for storing a first read command generated in response to a read request and a first physical address in the first read command queue; and a command schedule controller for searching for a first physical address group including at least one second physical address including a page number equal to that of the physical address among the physical addresses stored in the first read command queue and the first physical address, in response to a scheduling event signal provided from the command generation controller.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: January 2, 2024
    Assignee: SK hynix Inc.
    Inventor: Chung Un Na
  • Patent number: 11789650
    Abstract: The present technology relates to an electronic device. According to the present technology, a storage device includes a memory device configured to include memory cells for storing data and circuitry structured to generate voltage information indicating whether a voltage used for performing an operation on the memory cells is included in a preset voltage range; and a memory controller in communication with the memory device and configured to transmit, to the memory device, a status command requesting for a status response indicating a status of the operation, and control the memory device to change a voltage used for performing the operation based on the status response provided from the memory device and including the voltage information.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 17, 2023
    Assignee: SK HYNIX INC.
    Inventor: Chung Un Na
  • Patent number: 11775223
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller configured to provide an erase command, a suspend command, a resume command, and output a scheduling event signal after the resume command is output; and a command schedule controller configured to: search for a first physical address group, reorder a output sequence of the first read command queue, and provide a command to perform the read command based on the second read command queue.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: October 3, 2023
    Assignee: SK hynix Inc.
    Inventor: Chung Un Na
  • Patent number: 11734178
    Abstract: A storage device includes: a memory device including a plurality of planes, and a plurality of cache buffers and data buffers; and a memory controller for controlling the memory device to transmit first data and second data from first plane and second plane into the respective first cache buffer and second cache buffer, and control the first cache buffer and the second cache buffer to transmit the first data and the second data to the memory controller. In response to a read request for third data from a host while the first data is transmitting from the first cache buffer to the memory controller, the memory controller transmits a cache read command to the memory device such that the memory device reads the third data after the first data is completely transmitted to the memory controller, before the second data is transmitted from the second cache buffer.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: August 22, 2023
    Assignee: SK hynix Inc.
    Inventor: Chung Un Na
  • Publication number: 20230031193
    Abstract: A memory system includes a nonvolatile memory device and a controller. The nonvolatile memory device includes a memory block including a plurality of memory cells, a first memory region of memory cells coupled to a first word line and a second memory region of memory cells coupled to a second word line. The controller performs a single level cell (SLC) program operation on the second memory region and perform a fine program operation on the first memory region after a completion of the SLC program operation on the second memory region.
    Type: Application
    Filed: December 28, 2021
    Publication date: February 2, 2023
    Inventors: Chung Un NA, Sang Sik KIM
  • Publication number: 20230013450
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller configured to provide an erase command, a suspend command, a resume command, and output a scheduling event signal after the resume command is output; and a command schedule controller configured to: search for a first physical address group, reorder a output sequence of the first read command queue, and provide a command to perform the read command based on the second read command queue.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Inventor: Chung Un NA
  • Patent number: 11507322
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller configured to provide an erase command, a suspend command, a resume command, and output a scheduling event signal after the resume command is output; and a command schedule controller configured to: search for a first physical address group, reorder a output sequence of the first read command queue, and provide a command to perform the read command based on the second read command queue.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: November 22, 2022
    Assignee: SK hynix Inc.
    Inventor: Chung Un Na
  • Patent number: 11437113
    Abstract: A memory system includes a storage medium including a target memory region having a plurality of memory units; and a controller configured to store data into one or more target memory units, each of which is estimated to take less time to perform a write operation thereon than any of the other memory units among the plurality of memory units, when performing a memory dump operation due to a sudden power off.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: September 6, 2022
    Assignee: SK hynix Inc.
    Inventors: Min Hwan Moon, Chung Un Na
  • Publication number: 20220229595
    Abstract: Provided is a controller which controls a plurality of memory dies. The controller may include: a processor suitable for generating interleaved read commands based on read requests from a host; a memory interface suitable for acquiring the read commands and a host-requested order of the read commands from the processor, controlling page read operations on the plurality of memory dies in response to the read commands, and acquiring data chunks corresponding to read requests from memory dies whose page read operations are completed, according to the host-requested order; and a host interface suitable for providing the host with responses to the read requests according to the order in which the data chunks are acquired.
    Type: Application
    Filed: June 25, 2021
    Publication date: July 21, 2022
    Inventors: Ji Hoon LEE, Chung Un NA
  • Publication number: 20220197560
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller for storing a first read command generated in response to a read request and a first physical address in the first read command queue; and a command schedule controller for searching for a first physical address group including at least one second physical address including a page number equal to that of the physical address among the physical addresses stored in the first read command queue and the first physical address, in response to a scheduling event signal provided from the command generation controller.
    Type: Application
    Filed: July 1, 2021
    Publication date: June 23, 2022
    Inventor: Chung Un NA
  • Publication number: 20220197561
    Abstract: There are provided a memory controller and a storage device including the same. The memory controller includes: a command storage including a first read command queue and a second read command queue; a command generation controller configured to provide an erase command, a suspend command, a resume command, and output a scheduling event signal after the resume command is output; and a command schedule controller configured to: search for a first physical address group, reorder a output sequence of the first read command queue, and provide a command to perform the read command based on the second read command queue.
    Type: Application
    Filed: July 1, 2021
    Publication date: June 23, 2022
    Inventor: Chung Un NA
  • Publication number: 20220188234
    Abstract: A storage device includes: a memory device including a plurality of planes, and a plurality of cache buffers and data buffers; and a memory controller for controlling the memory device to transmit first data and second data from first plane and second plane into the respective first cache buffer and second cache buffer, and control the first cache buffer and the second cache buffer to transmit the first data and the second data to the memory controller. In response to a read request for third data from a host while the first data is transmitting from the first cache buffer to the memory controller, the memory controller transmits a cache read command to the memory device such that the memory device reads the third data after the first data is completely transmitted to the memory controller, before the second data is transmitted from the second cache buffer.
    Type: Application
    Filed: June 25, 2021
    Publication date: June 16, 2022
    Inventor: Chung Un NA
  • Publication number: 20220180953
    Abstract: A storage device includes: a memory device including a plurality of memory cells configured to store data and a plurality of word lines connected to the plurality of memory cells and a memory controller in communication with the memory device and configured to control the memory device, including controlling the memory device to perform a read operation perform, upon a failure of the read operation on the memory cell, a read retry operation by changing the read voltage based on a history read table, and wherein the memory controller is further configured to update the history read table, upon a success of the read retry operation, based on whether the word line connected to the memory cell is a last programmed word line according to a program order among word lines connected to the group of memory cells.
    Type: Application
    Filed: June 10, 2021
    Publication date: June 9, 2022
    Inventors: Chung Un NA, Yang Hyeon KWON
  • Patent number: 11355215
    Abstract: A data storage apparatus may include a data storage device including at least one data die to store first data, and at least one parity die to store second data, third data, and a chip-kill parity, where the at least one data die and the at least one parity die are connected to a channel, and controller in communication with the data storage device and configured to receive a write request for the first data and the second data from a host that is in communication with the data storage device through the channel to generate the chip-kill parity from the first data and the second data. The controller is further configured to read the third data from the parity die and provide the third data to the host upon receipt of a read request for the third data from the host while the chip-kill parity is being updated based on the first data.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: June 7, 2022
    Assignee: SK HYNIX INC.
    Inventor: Chung Un Na
  • Publication number: 20220156004
    Abstract: The present technology relates to an electronic device. According to the present technology, a storage device includes a memory device configured to include memory cells for storing data and circuitry structured to generate voltage information indicating whether a voltage used for performing an operation on the memory cells is included in a preset voltage range; and a memory controller in communication with the memory device and configured to transmit, to the memory device, a status command requesting for a status response indicating a status of the operation, and control the memory device to change a voltage used for performing the operation based on the status response provided from the memory device and including the voltage information.
    Type: Application
    Filed: May 21, 2021
    Publication date: May 19, 2022
    Inventor: Chung Un NA
  • Publication number: 20220013190
    Abstract: A data storage apparatus may include a data storage device including at least one data die to store first data, and at least one parity die to store second data, third data, and a chip-kill parity, where the at least one data die and the at least one parity die are connected to a channel, and controller in communication with the data storage device and configured to receive a write request for the first data and the second data from a host that is in communication with the data storage device through the channel to generate the chip-kill parity from the first data and the second data. The controller is further configured to read the third data from the parity die and provide the third data to the host upon receipt of a read request for the third data from the host while the chip-kill parity is being updated based on the first data.
    Type: Application
    Filed: January 14, 2021
    Publication date: January 13, 2022
    Inventor: Chung Un NA
  • Patent number: 11133068
    Abstract: A memory system includes: a memory device including a memory cell array and a page buffer circuit, the memory device performing a data program operation or a data erase operation, suspending the data program operation or the data erase operation in response to a suspend command, performing a data read operation of storing read data from the memory cell array in the page buffer circuit in response to a read command, and performing a data output operation of outputting the read data stored in the page buffer circuit; and a memory controller outputting a pre-resume command to the memory device between a first time at which the data read operation is complete and a second time at which the data output operation starts.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: September 28, 2021
    Assignee: SK hynix Inc
    Inventor: Chung Un Na
  • Publication number: 20210142855
    Abstract: A memory system includes: a memory device including a memory cell array and a page buffer circuit, the memory device performing a data program operation or a data erase operation, suspending the data program operation or the data erase operation in response to a suspend command, performing a data read operation of storing read data from the memory cell array in the page buffer circuit in response to a read command, and performing a data output operation of outputting the read data stored in the page buffer circuit; and a memory controller outputting a pre-resume command to the memory device between a first time at which the data read operation is complete and a second time at which the data output operation starts.
    Type: Application
    Filed: May 19, 2020
    Publication date: May 13, 2021
    Inventor: Chung Un NA
  • Publication number: 20210125679
    Abstract: A memory system includes a storage medium including a target memory region having a plurality of memory units; and a controller configured to store data into one or more target memory units, each of which is estimated to take less time to perform a write operation thereon than any of the other memory units among the plurality of memory units, when performing a memory dump operation due to a sudden power off.
    Type: Application
    Filed: May 18, 2020
    Publication date: April 29, 2021
    Inventors: Min Hwan MOON, Chung Un NA
  • Patent number: 10747660
    Abstract: A memory system includes a plurality of memory devices, each including a plurality of memory blocks; and a controller configured to evaluate performance grades of the plurality of memory blocks, form super blocks spanning the plurality of memory devices by selecting memory blocks, among the plurality of memory blocks, to be included in each of the super blocks based on the performance grades, and write-access an opened super block, among the super blocks.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 18, 2020
    Assignee: SK hynix Inc.
    Inventors: Seung Gu Ji, Chung Un Na, Byeong Gyu Park