Patents by Inventor Seon Ju Lee

Seon Ju 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).

  • Publication number: 20240123507
    Abstract: A powder supply management system for a laser forming device, includes: a hopper for discharging powder; a main sampling unit which guides a portion of the powder discharged from the hopper to the laser forming device and guides the remaining powder to be discharged to another location; and a discharge monitoring unit which calculates an amount of the remaining powder separated in the main sampling unit.
    Type: Application
    Filed: February 17, 2022
    Publication date: April 18, 2024
    Applicant: INSSTEK, INC.
    Inventors: Suk Hyun SEO, Won Hoe KIM, Seon Ju LEE
  • Publication number: 20240127897
    Abstract: A memory device comprises: a plurality of memory blocks each including a plurality of word lines, a control operation circuit suitable for performing a read operation on each of the plurality of word lines, and a control logic suitable for: storing a plurality of default levels, which respectively correspond to the memory blocks, in an information storage region therein, controlling the control operation circuit to perform one of a first read operation using a selected default level corresponding to a selected block and a second read operation using an adjusted level smaller than the selected default level, resetting the adjusted level to the selected default level when a number of times that the second read operation is passed is greater than a number of times that the first read operation is passed, by a reference number of times or more, and storing the reset level in the information storage region.
    Type: Application
    Filed: March 23, 2023
    Publication date: April 18, 2024
    Inventor: Seon Ju LEE
  • Publication number: 20240126682
    Abstract: A storage device may include: a plurality of memory dies; and a memory controller for receiving a first read request from a first function, controlling at least one memory die to perform a read operation according to the first read request, and controlling, when receiving a second read request from a second function in the course of the read operation according to the first read request, the at least one memory die to suspend the read operation according to the first read request and to perform a read operation according to the second read request based on a result obtained by comparing performance requirement information of the second function with residual time information of the second read request, which is determined according to a performance degree of the read operation being performed according to the first read request.
    Type: Application
    Filed: March 28, 2023
    Publication date: April 18, 2024
    Inventors: Seon Ju LEE, Min Hwan MOON
  • 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
  • Publication number: 20240078042
    Abstract: A storage device may fetch commands from a plurality of command queues. The storage device may determine a policy for fetching commands from the plurality of command queues as a first policy or a second policy on the basis of the state of a target command queue among the plurality of command queues. The policy may control an order in which commands are fetched from the plurality of command queues.
    Type: Application
    Filed: January 26, 2023
    Publication date: March 7, 2024
    Inventors: Kang Rak KWON, Seon Ju LEE
  • Publication number: 20240036731
    Abstract: Provided herein may be a memory system and a method of operating the same. A memory controller may include a latency monitoring component configured to generate information about a number of occurrences of over-latency exceeding a preset reference latency among latencies each indicating a time amount required from a time point at which first command is received from an external device to a time point at which a completion response to the first command is transmitted to the external device during a first period, and a completion response controller configured to determine a first target latency based on the information about the number of occurrences of over-latency, and provide, during a second period following the first period, the external device with a completion response to a second commands provided from the external device after the first target latency has elapsed.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 1, 2024
    Inventors: Seon Ju LEE, Ki Tae KIM, In Ho JUNG
  • Publication number: 20240028219
    Abstract: Provided herein may be a memory controller and a memory system including the same. The memory controller may include a plurality of control cores configured to control a plurality of zone blocks respectively corresponding to logical address groups provided by a host, a buffer memory configured to store information about a zone group including zone blocks which are controlled by different control cores among the plurality of zone blocks, the information about zone group being generated based on information about an available space in each of the plurality of zone blocks, and a wear-leveling controller configured to control the plurality of control cores to perform a global wear-leveling operation of swapping pieces of data between the zone blocks included in the zone group based on a wear-level of the plurality of zone blocks.
    Type: Application
    Filed: January 13, 2023
    Publication date: January 25, 2024
    Inventors: Dong Min BHAN, Seon Ju LEE
  • Publication number: 20240028210
    Abstract: A memory system may wait to receive one or more read commands from a reference time point, and read data, requested by the one or more read commands, from the memory device in response to a determination that it is possible to simultaneously read data divided and stored, as an M number of data units, in an M number of planes among a plurality of planes in response to the one or more read commands or that a maximum read wait time has elapsed from the reference time point, M being a natural number.
    Type: Application
    Filed: November 22, 2022
    Publication date: January 25, 2024
    Inventors: Seon Ju LEE, Jeong Sun PARK
  • Publication number: 20240012578
    Abstract: A data storage device may include a plurality of system resources, a buffer memory device and a memory controller. The buffer memory device may include a buffer memory allotted to the system resources. The memory controller may allocate the buffer memory based on performance requirements that are set in each of the system resources.
    Type: Application
    Filed: December 8, 2022
    Publication date: January 11, 2024
    Applicant: SK hynix Inc.
    Inventors: Seon Ju LEE, Seung Geol BAEK, Jae Hyun YOO, Dong Kyu LEE
  • Publication number: 20230418521
    Abstract: A memory system comprising: a memory device having a nonvolatile specific storage space configured to store workload information including groups of parameter values, grouped respectively corresponding to a plurality of workload classes in a table form, and a controller configured to detect a ratio of a set command inputted from an outside in a set operation mode, select one of the workload classes as a detected class, load, from the specific storage space, one of the groups corresponding to the detected class, process the set command under an execution condition determined by applying the loaded group, and update the group corresponding to the detected class with parameter values inputted from the outside.
    Type: Application
    Filed: November 29, 2022
    Publication date: December 28, 2023
    Inventors: In Ho JUNG, Ki Tae KIM, Seon Ju LEE
  • 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
  • Publication number: 20230384937
    Abstract: The present technology relates to an electronic device. According to the present technology, a memory controller may include a latency monitor and an operation controller. The latency monitor may count an over-latency count value representing a number of over-latencies exceeding a reference value among latencies for requests from a host during each of a plurality of periods, calculate gaps which are difference values between the over-latency count values of the plurality of periods, and generate latency information including the over-latency count values and the gaps. The operation controller may determine, based on the latency info oration, whether each gap between at least two target periods among the plurality of periods exceeds a threshold value, and delay a response to the requests according to a determination result.
    Type: Application
    Filed: December 14, 2022
    Publication date: November 30, 2023
    Inventors: Seon Ju LEE, Seung Geol Baek, Jae Hyun Yoo, Dong Kyu Lee
  • Patent number: 11809724
    Abstract: A memory controller that controls a memory device including a plurality of memory blocks allocated to a plurality of zones for storing data is provided. The memory controller comprises a plurality of processing cores controlling data operations in the plurality of zones in the memory device; and an external interface unit in communication with an external device and configured to receive, from the external device, a write request requesting to perform a write operation on a first zone in the memory device, the external interface unit configured to identify a first processing core for controlling the first zone and determine a second core to perform the write operation based on a number of open zones controlled by the first core and having an open state indicating a capability to execute a program operation.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: November 7, 2023
    Assignee: SK HYNIX INC.
    Inventors: Dong Kyu Lee, Seung Geol Baek, Jae Hyun Yoo, Seon Ju Lee
  • Publication number: 20230297253
    Abstract: A memory system may include a memory device including a plurality of memory areas each configured by a plurality of memory blocks; and a memory controller configured to generate zones each including at least one memory block selected from at least one of the memory areas included in the memory device, manage configuration information for each generated zone, sequentially store data from a first storage location of an open zone among the generated zones during a write operation on the open zone according to an external request, and determine a number of active target memory areas associated with the open zone on a basis of configuration information of the open zone.
    Type: Application
    Filed: August 5, 2022
    Publication date: September 21, 2023
    Inventors: Dong Kyu LEE, Seung Geol BAEK, Jae Hyun YOO, Seon Ju LEE
  • Publication number: 20230250573
    Abstract: Disclosed herein is a washing machine that includes a tub disposed in a main body of the washing machine to store water. A circulation apparatus includes a circulation pump operable to circulate the water in and out of the tub. A detergent supply apparatus is coupled to the circulation apparatus to discharge detergent to the circulation apparatus so that operation of the circulation pump causes the discharged detergent to be supplied to the tub.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Kwon KIM, Kyung Mok YOO, Seon Ju LEE, Chul Yong CHO, Jong Su JEON
  • Publication number: 20230168827
    Abstract: A memory controller that controls a memory device including a plurality of memory blocks allocated to a plurality of zones for storing data is provided. The memory controller comprises a plurality of processing cores controlling data operations in the plurality of zones in the memory device; and an external interface unit in communication with an external device and configured to receive, from the external device, a write request requesting to perform a write operation on a first zone in the memory device, the external interface unit configured to identify a first processing core for controlling the first zone and determine a second core to perform the write operation based on a number of open zones controlled by the first core and having an open state indicating a capability to execute a program operation.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 1, 2023
    Inventors: Dong Kyu LEE, Seung Geol BAEK, Jae Hyun YOO, Seon Ju LEE
  • Patent number: 11661697
    Abstract: Disclosed herein is a washing machine that includes a tub disposed in a main body of the washing machine to store water. A circulation apparatus includes a circulation pump operable to circulate the water in and out of the tub. A detergent supply apparatus is coupled to the circulation apparatus to discharge detergent to the circulation apparatus so that operation of the circulation pump causes the discharged detergent to be supplied to the tub.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: May 30, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Kwon Kim, Kyung Mok Yoo, Seon Ju Lee, Chul Yong Cho, Jong Su Jeon
  • Publication number: 20230144376
    Abstract: Embodiments of the present disclosure relate to a performance optimization device of a memory system and operating method thereof. According to embodiments of the present disclosure, a method for operating a performance optimization device of memory system is provided, the method including determining N, where N is a natural number, candidate performance parameter values for a performance parameter of the memory system; calculating N objective function results for an objective function defined for the memory system; and determining an additional candidate performance parameter value for the performance parameter of the memory system, based on the N candidate performance parameter values and the N objective function results.
    Type: Application
    Filed: April 21, 2022
    Publication date: May 11, 2023
    Inventors: Ki Tae KIM, Seon Ju Lee, In Ho Jung
  • Publication number: 20230108751
    Abstract: A memory system may include: a memory device including at least one word line and at least one memory cell coupled to the word line, and a controller including a write buffer configured to store a program command and data received from a host, the controller suitable for controlling a program operation of storing the data in the word line based on the program command, setting state check time of the word line during a performance period of the program operation, and checking a state of the word line according to a timeout signal generated based on the set state check time.
    Type: Application
    Filed: March 2, 2022
    Publication date: April 6, 2023
    Inventor: Seon Ju LEE
  • 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