Patents by Inventor Ki-Chang Gwon

Ki-Chang Gwon 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: 11061616
    Abstract: The present technology relates to a memory device and a method of operating the memory device. The memory device includes a target block manager configured to store a target block address on which a refresh operation is to be performed and output a refresh signal for the target block corresponding to the target block address when an auto refresh command is received, and a data transmission controller configured to output a transmission signal and a buffer control signal for transmitting data between the target block or the buffer block and the temporary buffer circuit in response to the refresh signal.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 13, 2021
    Assignee: SK hynix Inc.
    Inventors: Won Jae Choi, Ki Chang Gwon
  • Publication number: 20210049067
    Abstract: The present technology relates to an electronic device. A memory device performing efficient soft decoding by reducing the number of data provided to a memory controller includes a memory cell array and a page buffer connected to the memory cell array through a bit line. The page buffer includes a plurality of latches and a read data operating component configured to generate a soft bit by logically operating soft data, which are data read from the memory cell array, and to provide the soft bit to a memory controller, in a second read operation performed when a first read operation has failed.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 18, 2021
    Inventors: Won Jae CHOI, Ki Chang GWON
  • Publication number: 20200363993
    Abstract: The present technology relates to a memory device and a method of operating the memory device. The memory device includes a target block manager configured to store a target block address on which a refresh operation is to be performed and output a refresh signal for the target block corresponding to the target block address when an auto refresh command is received, and a data transmission controller configured to output a transmission signal and a buffer control signal for transmitting data between the target block or the buffer block and the temporary buffer circuit in response to the refresh signal.
    Type: Application
    Filed: December 27, 2019
    Publication date: November 19, 2020
    Applicant: SK hynix Inc.
    Inventors: Won Jae CHOI, Ki Chang GWON
  • Publication number: 20170140813
    Abstract: A nonvolatile memory device may include a cell string comprising a plurality of memory cells coupled in series; a bit line coupled to the cell string; a page buffer suitable for driving a sensing node to a ground voltage, a middle voltage, and a core voltage during a normal program operation, a slow program operation and a program inhibition operation, respectively; and a connection unit suitable for coupling the bit line to the sensing node in response to a control signal of a first voltage during the slow program operation, and in response to the control signal of a second voltage higher than the first voltage during the normal program operation and the program inhibition operation.
    Type: Application
    Filed: April 14, 2016
    Publication date: May 18, 2017
    Inventor: Ki-Chang GWON
  • Patent number: 9653155
    Abstract: A nonvolatile memory device may include a cell string comprising a plurality of memory cells coupled in series; a bit line coupled to the cell string; a page buffer suitable for driving a sensing node to a ground voltage, a middle voltage, and a core voltage during a normal program operation, a slow program operation and a program inhibition operation, respectively; and a connection unit suitable for coupling the bit line to the sensing node in response to a control signal of a first voltage during the slow program operation, and in response to the control signal of a second voltage higher than the first voltage during the normal program operation and the program inhibition operation.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: May 16, 2017
    Assignee: SK Hynix Inc.
    Inventor: Ki-Chang Gwon