Patents by Inventor Yong-Ju Kim

Yong-Ju 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: 9990312
    Abstract: A memory system includes: a plurality of memory devices, one of which includes an unrepaired defective memory cell; a control bus that is shared by the plurality of the memory devices; a plurality of data buses assigned to each of the plurality of the memory devices; and a memory controller that communicates with the plurality of the memory devices through the control bus and the plurality of the data buses, a control latency of the memory device including unrepaired defective memory cells is set differently from a control latency of the other memory devices, where the control latency is used for recognizing control signals of the control bus.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 5, 2018
    Assignee: SK Hynix Inc.
    Inventors: Sung-Eun Lee, Jung-Hyun Kwon, Jing-Zhe Xu, Yong-Ju Kim
  • Publication number: 20180130526
    Abstract: A method for refreshing memory cells includes: reading data from a plurality of memory cells; and performing a write operation with a first data onto memory cells from which the first data is read among the plurality of memory cells.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 10, 2018
    Inventors: Do-Sun HONG, Yong-Ju KIM, Dong-Gun KIM
  • Publication number: 20180107597
    Abstract: A memory system includes: a memory device; and a memory controller suitable for controlling the memory device, and the memory device includes: a plurality of normal memory cells; a plurality of redundant memory cells; and a soft repair circuit suitable for replacing a portion of normal memory cells among the plurality of the normal memory cells with the plurality of the redundant memory cells, and the memory controller controls the soft repair circuit to repair the portion of the normal memory cells among the plurality of the normal memory cells with the plurality of the redundant memory cells, commands the memory device to write a secure data in the plurality of the redundant memory cells, and controls the soft repair circuit to recover the repairing of the portion of the normal memory cells with the plurality of the redundant memory cells.
    Type: Application
    Filed: July 19, 2017
    Publication date: April 19, 2018
    Inventors: Sang-Gu JO, Yong-Ju KIM
  • Publication number: 20180081545
    Abstract: A resistance variable memory apparatus may include a memory circuit configured to include a plurality of blocks, each including a plurality of memory cells. The resistance variable memory apparatus may include a disturbance preventing circuit configured to be driven based on a counting signal corresponding to the number of write access for each of the plurality of blocks, a write command, and an address signal and to allow scrubbing to be performed on a memory cell having a preset scrubbing condition when the counting signal satisfied with the scrubbing condition is output based on the scribing condition according to a physical position of the memory cell in the block.
    Type: Application
    Filed: February 16, 2017
    Publication date: March 22, 2018
    Applicant: SK hynix Inc.
    Inventors: Do-Sun HONG, Donggun KIM, Yong Ju KIM, Sang Gu JO
  • Patent number: 9923809
    Abstract: A data transmission and reception system may include: a data transmission apparatus configured to generate N Tx signals having discrete levels using N binary data, and output the N Tx signals to N single-ended signal lines, respectively, where N is a natural number equal to or larger than 2; and a data reception apparatus configured to receive the N Tx signals transmitted in parallel through the single-ended signal lines, and restore the N binary data by comparing the received N Tx signals to each other.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: March 20, 2018
    Assignees: SK HYNIX INC., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Hong June Park, Soo Mln Lee, Yong Ju Kim, Hae Kang Jung
  • Publication number: 20180060166
    Abstract: A semiconductor system includes a host and a media controller. The host may generate first host parities from first host data based on an error check matrix. The media controller may include a first input/output (I/O) circuit and a second I/O circuit. The media controller may generate first media data and first media parities based on the first host data and the first host parities. The first I/O circuit may generate, based on the error check matrix, first internal data by correcting errors in the first host data using the first host parities. The second I/O circuit may generate the first media data and the first media parities from the first internal data.
    Type: Application
    Filed: June 1, 2017
    Publication date: March 1, 2018
    Applicant: SK hynix Inc.
    Inventors: Sungeun LEE, Jung Hyun KWON, Yong Ju KIM, Jae Sun LEE, JINGZHE XU
  • Publication number: 20180052732
    Abstract: A semiconductor system may be provided. The semiconductor system may include a first semiconductor device configured for outputting a transmission command and a transmission address, being inputted with and outputting transmission data, and generating an error flag signal when an error bit is included in the transmission data inputted in a read operation. The semiconductor system may include a second semiconductor device configured for storing the transmission address in a lookup table circuit when the error flag signal is enabled, and comparing the transmission address and a storage address stored in the lookup table circuit when the read operation is performed based on the transmission command and outputting the transmission data from the lookup table circuit.
    Type: Application
    Filed: March 24, 2017
    Publication date: February 22, 2018
    Applicant: SK hynix Inc.
    Inventors: Sang Gu JO, Jung Hyun KWON, Donggun KIM, Yong Ju KIM, Sungeun LEE, Jae Sun LEE, JINGZHE XU, Do-Sun HONG
  • Publication number: 20180004677
    Abstract: A memory system includes a memory device including a memory block, the memory block including a plurality of memory cell groups, an address translator that maps a logical address of a data to a physical address of the memory block, and a controller configured to divide the plurality of memory cell groups into a plurality of first memory cell groups and at least one second memory cell group, and control the address translator so that the address translator maps a logical address of a data to a physical address of the first memory cell groups of the memory block and not in the at least one second memory cell group and switches the at least one second memory cell group with a selected first memory cell group among the plurality of the first memory cell groups when a predetermined period of time elapses.
    Type: Application
    Filed: May 17, 2017
    Publication date: January 4, 2018
    Inventors: Dong-Gun KIM, Yong-Ju KIM, Sang-Gu JO, Do-Sun HONG
  • Publication number: 20170371800
    Abstract: Provided is a method for mapping a logical address to a physical address, including: identifying whether a logical address is identical to a round value; mapping the logical address to a first physical address identical to an interval value when the logical address is identical to the round value; mapping the logical address to a second physical address corresponding to a value obtained by subtracting the round value from the logical address when the logical address is different from the round value; and adjusting a mapping value of the logical address to the second physical address to a value obtained by subtracting one from the second physical address when the second physical address is less than or equal to the interval value.
    Type: Application
    Filed: May 18, 2017
    Publication date: December 28, 2017
    Inventors: Dong-Gun KIM, Yong-Ju KIM, Sang-Gu JO, Do-Sun HONG
  • Publication number: 20170365303
    Abstract: A semiconductor device may be provided. The semiconductor device may be configured to shift storage positions of data and error information on the data to store the data into shifted storage positions based on the address signals having a certain combination being inputted a predetermined number of times.
    Type: Application
    Filed: February 22, 2017
    Publication date: December 21, 2017
    Applicant: SK hynix Inc.
    Inventors: Sang Gu JO, Donggun KIM, Yong Ju KIM, Do-Sun HONG
  • Publication number: 20170358350
    Abstract: A method for operating a memory device comprising a plurality of memory cells, the method may include: performing a first refresh operation comprising sequentially applying a recovery pulse to each of the plurality of memory cells and repeating the sequential application of the recovery pulse to each of the plurality of memory cells for a predetermined number of times; and performing a second refresh operation comprising sequentially re-writing data of each of the plurality of memory cells once after the first refresh operation is performed for the predetermined number of times.
    Type: Application
    Filed: May 16, 2017
    Publication date: December 14, 2017
    Inventors: Yong-Ju KIM, Sang-Gu JO
  • Patent number: 9842644
    Abstract: A method for operating a memory device comprising a plurality of memory cells, the method may include: performing a first refresh operation comprising sequentially applying a recovery pulse to each of the plurality of memory cells and repeating the sequential application of the recovery pulse to each of the plurality of memory cells for a predetermined number of times; and performing a second refresh operation comprising sequentially re-writing data of each of the plurality of memory cells once after the first refresh operation is performed for the predetermined number of times.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: December 12, 2017
    Assignee: SK Hynix Inc.
    Inventors: Yong-Ju Kim, Sang-Gu Jo
  • Patent number: 9842035
    Abstract: A semiconductor system includes one or more core chips including a plurality of memory banks; one or more replacement storage units; and a base chip suitable for: first detecting a memory bank having an access frequency that satisfies a first condition, second detecting whether an utilization rate of the first detected memory bank satisfies a second condition, and replacing the second detected memory bank with one among the replacement storage units.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: December 12, 2017
    Assignee: SK Hynix Inc.
    Inventors: Kyung-Min Lee, Young-Ook Song, Ki-Joong Kim, Yong-Ju Kim, Jung-Hyun Kwon, Sang-Gu Jo
  • Publication number: 20170344278
    Abstract: A memory controller may be provided. The memory controller may include a wear-leveler may be configured to determine whether execution of a swapping operation is required based on reception of a write command for a stack region.
    Type: Application
    Filed: April 21, 2017
    Publication date: November 30, 2017
    Applicant: SK hynix Inc.
    Inventors: Do-Sun HONG, Jung Hyun KWON, Donggun KIM, Yong Ju KIM, Sungeun LEE, Jae Sun LEE, Sang Gu JO, JINGZHE XU
  • Publication number: 20170329726
    Abstract: A memory system includes: a plurality of memory devices, one of which includes an unrepaired defective memory cell; a control bus that is shared by the plurality of the memory devices; a plurality of data buses assigned to each of the plurality of the memory devices; and a memory controller that communicates with the plurality of the memory devices through the control bus and the plurality of the data buses, a control latency of the memory device including unrepaired defective memory cells is set differently from a control latency of the other memory devices, where the control latency is used for recognizing control signals of the control bus.
    Type: Application
    Filed: September 6, 2016
    Publication date: November 16, 2017
    Inventors: Sung-Eun LEE, Jung-Hyun KWON, Jing-Zhe XU, Yong-Ju KIM
  • Publication number: 20170329389
    Abstract: In an embodiment of the present disclosure, a memory module may be provided. In an embodiment of the present disclosure, a system may be provided. In an embodiment of the present disclosure, an operation of a system and memory module may be provided. The memory module may include a plurality of ranks in which a defragmentation operation of a memory is performed based on entrance of a low-power operation mode, and a vacant region of the memory is powered off based on entrance of a self-refresh mode after the defragmentation operation is ended. The memory module may include a page table of which data are updated based on an ending of the defragmentation operation of the memory.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 16, 2017
    Inventors: Yong Ju KIM, Jung Hyun KWON, Donggun KIM, Sungeun LEE, Jae Sun LEE, Sang Gu JO, Jingzhe XU, Do Sun HONG
  • Publication number: 20170293427
    Abstract: A memory module may include a first memory device configured to be controlled by a host memory controller, to transmit/receive data to/from the host memory controller in a first mode, and to transmit/receive data to/from a module memory controller in a second mode, a second memory device configured to be controlled by the module memory controller and to transmit/receive data to/from the module memory controller in the second mode, and the module memory controller configured to monitor control of the first memory device by the host memory controller, to exchange data such that the data is transmitted/received between the first memory device and the second memory device in the second mode, and to control the second memory device.
    Type: Application
    Filed: August 25, 2016
    Publication date: October 12, 2017
    Inventors: Jung-Hyun KWON, Yong-Ju KIM, Sang-Gu JO, Jae-Sun LEE, Do-Sun HONG, Sung-Eun LEE, Jing-Zhe XU, Dong-Gun KIM
  • Patent number: 9787296
    Abstract: A delay circuit includes: a plurality of delay units that are serially coupled with each other in a form of loop and sequentially delay an input signal of the delay circuit; an input control unit that selects a delay unit to receive the input signal of the delay circuit among the plurality of the delay units; and an output control unit that controls an output signal of a predetermined delay unit among the plurality of the delay units to be outputted as an output signal of the delay circuit, when the output signal of the predetermined delay unit is enabled N times, where N is an integer equal to or greater than 0.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: October 10, 2017
    Assignee: SK Hynix Inc.
    Inventors: Sung-Eun Lee, Kyung-Hoon Kim, Myeong-Jae Park, Woo-Yeol Shin, Han-Kyu Chi, Yong-Ju Kim
  • Publication number: 20170285942
    Abstract: A memory system may include a memory device suitable for storing data requested from a host, and a controller suitable for generating information on the data and transmitting/receiving the data and the information to/from the memory device through first and second data buses, respectively, during a first operation mode, or for transmitting/receiving the data to/from the memory device through one of the first and second data buses based on the data size, during a second operation mode.
    Type: Application
    Filed: September 20, 2016
    Publication date: October 5, 2017
    Inventors: Hyung-Gyun YANG, Yong-Ju KIM, Hong-Sik KIM
  • Publication number: 20170277606
    Abstract: A semiconductor system includes one or more core chips including a plurality of memory banks; one or more replacement storage units; and a base chip suitable for: first detecting a memory bank having an access frequency that satisfies a first condition, second detecting whether an utilization rate of the first detected memory bank satisfies a second condition, and replacing the second detected memory bank with one among the replacement storage units.
    Type: Application
    Filed: August 12, 2016
    Publication date: September 28, 2017
    Inventors: Kyung-Min LEE, Young-Ook SONG, Ki-Joong KIM, Yong-Ju KIM, Jung-Hyun KWON, Sang-Gu JO