Patents by Inventor Kyung-In Choi

Kyung-In Choi 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: 11522204
    Abstract: A fuel cell system includes a fuel cell stack, a first cooling line configured to circulate a first coolant that passes via the fuel cell stack, a first radiator disposed on the first cooling line, a valve configured to switch a flow path of the first coolant to the fuel cell stack or the first radiator, and a controller connected to the valve and configured to set a target temperature at an inlet of the fuel cell stack and a correction coefficient for controlling an opening degree of the valve, measure a first coolant temperature at an outlet of the fuel cell stack and a second coolant temperature at an outlet of the first radiator, calculate the opening degree of the valve based on the first coolant temperature, the second coolant temperature, the target temperature, and the correction coefficient, and correct the correction coefficient based on comparison of a third coolant temperature at the inlet of the fuel cell stack and the target temperature, in response to the opening degree being within a first ran
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: December 6, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Sung Kyung Choi, Jong Bo Won
  • Publication number: 20220385823
    Abstract: A monitoring device and a vehicle having the same. The monitoring device includes a camera configured to obtain an image; a display configured to display the image; a tilting adjustor configured to adjust a tilting angle of the camera; and a controller configured to recognize a brightness of a first image displayed on the display and control the tilting adjustor to adjust the tilting angle of the camera in response to determining that the recognized brightness is greater than or equal to a reference value, and after adjusting the tilting angle of the camera, control the tilting adjustor to adjust the tilting angle of the camera to an initial tilting angle in response to determining that a brightness of a second image displayed the display is less than or equal to a release value.
    Type: Application
    Filed: April 18, 2022
    Publication date: December 1, 2022
    Applicants: Hyundai Motor Company, KIA CORPORATION
    Inventors: Gunho LEE, Jae Kyung CHOI
  • Patent number: 11514988
    Abstract: A method of operating a controller that controls an operation of a semiconductor memory device including a meta area, a normal area, and a state area, includes sensing a turn-on of a memory system including the controller, checking a last state flag among at least one or more state flags stored in the state area, and determining whether to perform a reclaim operation on meta data stored in the meta area based on the checked state flag.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: November 29, 2022
    Assignee: SK hynix Inc.
    Inventors: Ji Yeun Kang, Ji Hong Kim, Min Kyung Choi
  • Publication number: 20220376276
    Abstract: A fuel cell system includes a fuel cell stack, a first cooling line configured to circulate a first coolant that passes via the fuel cell stack, a first radiator disposed on the first cooling line, a valve configured to switch a flow path of the first coolant to the fuel cell stack or the first radiator, and a controller connected to the valve and configured to set a target temperature at an inlet of the fuel cell stack and a correction coefficient for controlling an opening degree of the valve, measure a first coolant temperature at an outlet of the fuel cell stack and a second coolant temperature at an outlet of the first radiator, calculate the opening degree of the valve based on the first coolant temperature, the second coolant temperature, the target temperature, and the correction coefficient, and correct the correction coefficient based on comparison of a third coolant temperature at the inlet of the fuel cell stack and the target temperature, in response to the opening degree being within a first ran
    Type: Application
    Filed: October 28, 2021
    Publication date: November 24, 2022
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Sung Kyung CHOI, Jong Bo WON
  • Publication number: 20220376277
    Abstract: A temperature control apparatus and method for fuel cell system, where the apparatus includes a fuel cell stack, a first pump disposed on a first cooling line, a first radiator disposed on the first cooling line, power electronic parts, a second pump disposed on a second cooling line, a second radiator disposed on the second cooling line, a cooling fan configured to blow exterior air to any one of the first radiator and the second radiator, and a controller configured to determine an RPM of the cooling fan based on a coolant temperature at an inlet of the fuel cell stack and a first exterior air temperature, to determine a target cooling performance of the plurality of power electronic parts based on power consumptions of the plurality of power electronic parts, and to determine an RPM of the second pump based on the target cooling performance of the plurality of power electronic parts, the RPM of the cooling fan, and a second exterior air temperature.
    Type: Application
    Filed: October 28, 2021
    Publication date: November 24, 2022
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Jong Bo WON, Sung Kyung CHOI
  • Patent number: 11508973
    Abstract: A fuel cell system for a vehicle includes: a first cooling line to pass through a fuel cell stack in the vehicle and to circulate a first coolant therethrough; a second cooling line to pass through a power electronic part in the vehicle and to circulate a second coolant therethrough; and a heat exchanger to allow the first coolant and the second coolant to exchange heat.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: November 22, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jong Bo Won, Sung Kyung Choi
  • Publication number: 20220343264
    Abstract: Disclosed is a method of providing information related to an order by an electronic apparatus, the method including acquiring necessary order information including information on at least one order item, information on an order quantity of the at least one order item, and information on a lead time of the at least one order item, confirming a reference date based on the information on the lead time, confirming information on a remaining storage capacity of a fulfillment center on the reference date, confirming a target order item whose order quantity is to be adjusted from the necessary order information when order quantity corresponding to the necessary order information exceeds the remaining storage capacity of the fulfillment center on the reference date, and providing updated order information in which the order quantity of the target order item is adjusted.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 27, 2022
    Applicant: Coupang Corp.
    Inventors: Wei Wei, Ke Ma, Xiukun Liang, Guangyao Zhang, Kai Zhang, Soo Kyung Choi, Timothy Wolfgang Schoenharl
  • Publication number: 20220343245
    Abstract: Disclosed are a method and electronic apparatus for providing information related to an order. The method includes acquiring quantity information of an order item in a fulfillment center and information on a period related to order quantity calculation for the order item, confirming a reference date for the order quantity calculation and a reference period starting from the reference date based on the information on the period, determining estimated consumption information of the order item by the reference date and estimated demand information of the order item for the reference period, and providing information on an order quantity of the order item calculated based on the quantity information, the estimated consumption information, and the estimated demand information.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 27, 2022
    Applicant: Coupang Corp.
    Inventors: Wei Wei, Kai Zhang, Guangyao Zhang, Soo Kyung Choi, Timothy Wolfgang Schoenharl
  • Publication number: 20220343237
    Abstract: Provided is a method of providing information related to item scrap, the method including at least one of confirming information on an item scrapped in a fulfillment center, confirming a cause of scrapping the item based on the information on the item including a code life of the item and an average sales amount of the item, and providing information indicating the cause of scrapping the item.
    Type: Application
    Filed: September 3, 2021
    Publication date: October 27, 2022
    Applicant: Coupang Corp.
    Inventors: Wei Wei, Zonghan Wu, Ping Yin, Soo Kyung Choi, Timothy Wolfgang Schoenharl
  • Publication number: 20220343343
    Abstract: Provided is a method of providing information related to an item shortage, the method including confirming information on an item of which a shortage occurs in a fulfillment center, confirming a cause of an item shortage based on the information on the item, and providing information indicating the cause of the item shortage.
    Type: Application
    Filed: August 4, 2021
    Publication date: October 27, 2022
    Applicant: Coupang Corp.
    Inventors: Wei Wei, Ping Yin, Soo Kyung Choi, Timothy Wolfgang Schoenharl
  • Publication number: 20220302310
    Abstract: A semiconductor device includes; an active pattern on a substrate, gate structures in which each gate structure includes a gate electrode intersecting the active pattern and a gate capping pattern on the gate electrode, a source/drain pattern disposed on the active pattern between adjacent gate structures, a lower active contact connected to the source/drain pattern, an etching stop film extending along an upper surface of the lower active contact without contacting an upper surface of the gate capping pattern, and an upper active contact connected to the lower active contact, wherein a bottom surface of the upper active contact is lower than the upper surface of the gate capping pattern.
    Type: Application
    Filed: August 31, 2021
    Publication date: September 22, 2022
    Inventors: KYUNG IN CHOI, HAE JUN YU, SUNG HUN JUNG
  • Patent number: 11449421
    Abstract: Embodiments of the disclosed technology relate to a memory system, and a memory controller and a method of operating the same. In performing a recovery operation after occurrence of sudden power off (SPO), by determining whether to delete, from a memory device, journaling information associated with data stored in a target open memory block based on the state of the memory device, thereby preventing unnecessary data movement in a situation where the number of free memory blocks included in the memory device is insufficient, and maintaining the number of free memory blocks included in the memory device to a predetermined value or more.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: September 20, 2022
    Assignee: SK hynix Inc.
    Inventors: Min Kyung Choi, Ji Yeun Kang
  • Patent number: 11450872
    Abstract: A fuel cell system for a vehicle includes a first cooling line configured to pass through a fuel cell stack in a vehicle and configured to circulate a first coolant therein, a first cooler provided in the first cooling line and configured to cool the first coolant, and a second cooler provided in the first cooling line and configured to cool the first coolant independently from the first cooler, thereby obtaining an advantageous effect of ensuring a high output from the fuel cell stack and improving safety and reliability.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: September 20, 2022
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Jong Bo Won, Sung Kyung Choi
  • Patent number: 11450873
    Abstract: A fuel cell system includes a sensor device that measures a coolant temperature at an inlet of a fuel cell and an outside-air temperature, a cooling fan that cools a coolant, and a cooling fan controller connected with the sensor device and the cooling fan. The cooling fan controller determines an RPM of the cooling fan, based on the outside-air temperature and an output value of the fuel cell and corrects the RPM of the cooling fan, based on the coolant temperature at the inlet of the fuel cell.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: September 20, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jong Bo Won, Sung Kyung Choi
  • Publication number: 20220250941
    Abstract: Provided is a desalination device using a solvent extraction method, comprising: a first mixing tank composed of a feed water inlet into which feed water comprising salt ions and water molecules flows, a first solvent inlet into which a first solvent selectively reacting more with the water molecules than with the salt ions flows, a first mixing tank body in which the feed water and the first solvent are mixed so as to form a mixed water, and a mixed water outlet through which the mixed water is discharged; a first separation tank composed of a mixed water inlet which communicates with the mixed water outlet so that the mixed water flows therein, a first separation tank body in which brine containing salt ions of the feed water and first treatment water formed from mixing the water molecules of the feed water and the first solvent of the mixed water are separated by layer, and a first treatment water outlet through which the first treatment water is discharged; a second mixing tank composed of a first treatme
    Type: Application
    Filed: April 22, 2022
    Publication date: August 11, 2022
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jae Woo LEE, Ou Kyung Choi, Jun Ho Seo, Gyeong Su Kim, Dan Dan Dong, Xin Zhao
  • Publication number: 20220244812
    Abstract: A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 4, 2022
    Inventors: Junchul PARK, Jonghee NA, Gwangho NAM, Taekon YU, Hyunwook LIM, Woohyuk JANG, Bumsoo KIM, Byunghwee PARK, Wongab JUNG, Yoon-Kyung CHOI
  • Publication number: 20220244053
    Abstract: A system and a method are provided that are capable of providing map data for supporting a variety of user network environments and selecting data zones freely. A navigation terminal includes a reception unit adapted to receive a file in which map data of a specific zone is stored, from a map provision server; and an execution unit adapted to execute a navigation function on the specific zone using the file. The file is produced by an individual unit with respect to each of geographic areas divided by a mesh unit having a variable size. The size of the mesh unit is decided according to the amount of information included in the geographic area such that the file has an equalized size.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 4, 2022
    Applicant: THINKWARE CORPORATION
    Inventors: Won Kyung CHOI, Taekyu Han
  • Publication number: 20220231314
    Abstract: A fuel cell system includes a cooling fan that cools a coolant, a pump that pumps the coolant, and a controller communicatively connected with the cooling fan and the pump. The controller retrieves a preset cooling-fan RPM and a preset pump RPM, optimizes the cooling-fan RPM and the pump RPM through a decrease of the cooling-fan RPM and an increase of the pump RPM such that a coolant temperature at an inlet of a fuel cell stack satisfies a specified temperature condition and a total power consumption is minimized, the total power consumption being a sum of a power consumption corresponding to the cooling-fan RPM and a power consumption corresponding to the pump RPM, and stores the optimized cooling-fan RPM and the optimized pump RPM. Besides, it may be permissible to prepare various other embodiments speculated through the specification.
    Type: Application
    Filed: June 24, 2021
    Publication date: July 21, 2022
    Inventors: Sung Kyung CHOI, Jong Bo WON
  • Publication number: 20220214791
    Abstract: A touch sensing device may include a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, the touch controller is configured to, during a first uplink period for communication with an active pen, provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.
    Type: Application
    Filed: August 9, 2021
    Publication date: July 7, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sungyong CHO, Jinchul LEE, Yunrae JO, Bumsoo KIM, Choonghoon LEE, Yoon-Kyung CHOI
  • Publication number: 20220209265
    Abstract: A fuel cell system includes a sensor device that measures a coolant temperature at an inlet of a fuel cell and an outside-air temperature, a cooling fan that cools a coolant, and a cooling fan controller connected with the sensor device and the cooling fan. The cooling fan controller determines an RPM of the cooling fan, based on the outside-air temperature and an output value of the fuel cell and corrects the RPM of the cooling fan, based on the coolant temperature at the inlet of the fuel cell.
    Type: Application
    Filed: June 14, 2021
    Publication date: June 30, 2022
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Jong Bo WON, Sung Kyung CHOI