Patents by Inventor Yoo Sung LEE

Yoo Sung 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).

  • Patent number: 12260918
    Abstract: A memory device includes: a memory cell array including a security region configured to store security data; and a security management circuit configured to store a guard key and, responsive to receiving a data operation command for the security region, limit a data operation for the security region by comparing the guard key with an input password that is received by the memory device.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: March 25, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoo-jung Lee, Jang-seok Choi, Duk-sung Kim, Hyun-joong Kim
  • Publication number: 20250074197
    Abstract: An apparatus for managing a battery includes a voltage sensor that measures a voltage of a battery cell mounted on a vehicle, and a processor that determines a short circuit risk of the battery cell.
    Type: Application
    Filed: December 8, 2023
    Publication date: March 6, 2025
    Inventors: Yoo Hong Jang, Yoon Sung Choi, Sang Jin Lee, Hyo Kyung Lee, Yo Han Baek
  • Publication number: 20250076401
    Abstract: A battery management apparatus includes a control circuit configured to determine an internal resistance value for each of one or more battery cells included in a battery pack by using a current change amount of the battery pack and a voltage change amount of the one or more battery cells, and diagnose defects in the one or more battery cells by using internal resistance values of the one or more battery cells, in response to charging the battery pack, where the control circuit is configured to determine the current change amount of the battery pack and the voltage change amount of the one or more battery cells based on a current change request time point requiring a charging current change based on a voltage of the battery pack reaching a predetermined voltage during the charge of the battery pack.
    Type: Application
    Filed: May 29, 2024
    Publication date: March 6, 2025
    Inventors: Yoon Sung CHOI, Ju Seok KIM, Yoo Hong JANG, Sang Jin LEE, Hyo Kyung LEE, Yo Han BAEK
  • Publication number: 20250076392
    Abstract: In an apparatus for correcting a voltage of a battery cell and a method thereof. The apparatus includes a voltage sensor configured for measuring voltages of a plurality of battery cells, and a controller which is configured for determining an amount of voltage change of each battery cell corresponding to a preset discharge current, detects target battery cells whose identification numbers have preset intervals while the amount of voltage change does not exceed a threshold value, and corrects the amount of voltage change of each target battery cell.
    Type: Application
    Filed: December 8, 2023
    Publication date: March 6, 2025
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Yoo Hong JANG, Yoon Sung CHOI, Bo Hyun LEE, Sang Jin LEE, Hyo Kyung LEE, Yo Han BAEK
  • Publication number: 20250046245
    Abstract: A display device is disclosed that includes a display panel including a plurality of pixels configured to receive an initialization voltage through an initialization voltage line, a controller configured to output a voltage control signal for controlling a voltage level of the initialization voltage, and a power manager configured to provide the initialization voltage to the initialization voltage line, change the voltage level of the initialization voltage to an initialization level at or after a power-on time at which a power starts to be supplied and before a display-on time at which an image starts to be displayed based on the voltage control signal, and change the voltage level of the initialization voltage to a target level corresponding to a luminance of the image at or after the display-on time based on the power control signal.
    Type: Application
    Filed: March 13, 2024
    Publication date: February 6, 2025
    Inventors: HYOJUNG KIM, DEOK JUN CHOI, HYUN-CHANG KANG, YUNHEE KWAK, YOO-YOUNG PARK, Hyesun Sung, JI-HYEON SON, SEUNGBO SHIM, JEONG YONG LEE
  • Publication number: 20250044362
    Abstract: A battery management apparatus includes a voltage sensor configured to measure a voltage of one or more battery cells, a control circuit configured to diagnose a defect in the one or more battery cells by determining a voltage change amount of the one or more battery cells using the voltage of the one or more battery cells measured by the voltage sensor, and a storage configured to store data and algorithms driven by the control circuit. The control circuit is configured to obtain a voltage for each battery cell by sequentially measuring the one or more battery cells, and to perform first voltage measurement on the one or more battery cells in a forward chronological order and to perform second voltage measurement on the one or more battery cells in a reverse chronological order.
    Type: Application
    Filed: November 15, 2023
    Publication date: February 6, 2025
    Inventors: Yo Han Baek, Yoon Sung Choi, Sang Jin Lee, Hyo Kyung Lee, Yoo Hong Jang
  • Publication number: 20250028003
    Abstract: An apparatus for detecting soft shorts of a battery cell and a method for the same are provided. The apparatus includes a sensor to measure voltages of a plurality of battery cells, and a controller to determine a slope of a voltage of each battery cell, the deviation of the slope of the voltage for each battery cell, and detect a battery cell, which has the soft shorts, of the plurality of battery cells, based on the slope and the deviation.
    Type: Application
    Filed: November 27, 2023
    Publication date: January 23, 2025
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Yoon Sung CHOI, Yo Han BAEK, Sang Jin LEE, Hyo Kyung LEE, Yoo Hong JANG
  • Publication number: 20250028000
    Abstract: An apparatus for monitoring a battery of a vehicle includes one or more sensors and a processor, wherein the one or more sensors may obtain a first voltage during a stabilization time of the battery, obtain a minimum voltage measured from a time point when the stabilization time ends to a time point when parking of the vehicle ends as a second voltage of the battery, and detect a temperature of the battery from a time point when the first voltage is obtained to a time point when the second voltage is obtained, and the processor may determine a first discharge amount based on the first voltage and the second voltage, determine a second discharge amount consumed in balancing the battery and operating the one or more sensors, determine a first self-discharge amount and a second self-discharge amount based on the first discharge amount, the second discharge amount, and the temperature, and determine whether a short circuit has occurred in the battery based on the first self-discharge amount and the second self-di
    Type: Application
    Filed: November 13, 2023
    Publication date: January 23, 2025
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Yoo Hong JANG, Yoon Sung CHOI, Sang Jin LEE, Hyo Kyung LEE, Yo Han BAEK
  • Patent number: 10088966
    Abstract: A touch screen panel includes a base substrate, a sensing pattern layer on the base substrate, the sensing pattern layer including a plurality of sensing patterns formed on the base substrate, an insulation layer on the sensing pattern layer, and a bridge electrode formed on the insulation layer to electrically connect unit patterns isolated from each other of the sensing pattern layer. The insulation layer and the bridge electrode satisfy parameters according to specific equations so that a visibility of the bridge electrode on the insulation layer is decreased and an image visibility is improved.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 2, 2018
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Yong Sun Han, Sung Jin Noh, Yoo Sung Lee, Woo Hyun Bae
  • Publication number: 20170329437
    Abstract: A touch screen panel includes a base substrate, a sensing pattern layer on the base substrate, the sensing pattern layer including a plurality of sensing patterns formed on the base substrate, an insulation layer on the sensing pattern layer, and a bridge electrode formed on the insulation layer to electrically connect unit patterns isolated from each other of the sensing pattern layer. The insulation layer and the bridge electrode satisfy parameters according to specific equations so that a visibility of the bridge electrode on the insulation layer is decreased and an image visibility is improved.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 16, 2017
    Inventors: Yong Sun HAN, Sung Jin NOH, Yoo Sung LEE, Woo Hyun BAE
  • Patent number: 9760228
    Abstract: Disclosed is a transparent electrode pattern structure including: a first transparent electrode layer and a second transparent electrode layer which are stacked on a transparent substrate in a predetermined pattern, respectively; an insulation layer disposed between the first transparent electrode layer and the second transparent electrode layer; and contact holes formed in the insulation layer to electrically connect the first transparent electrode layer with the second transparent electrode layer; wherein the first transparent electrode layer and the second transparent electrode layer have a thickness of 100 to 200 nm, respectively, and the insulation layer has a thickness of 1,000 to 2,000 nm, thereby considerably decreasing a difference in reflectance on separate positions, as well as a touch screen panel including the transparent electrode pattern structure.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: September 12, 2017
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Gi Hwan Ahn, Kyoung Su Ha, Yoo Sung Lee, Yong Sun Han
  • Publication number: 20160048242
    Abstract: Disclosed is a transparent electrode pattern structure including: a first transparent electrode layer and a second transparent electrode layer which are stacked on a transparent substrate in a predetermined pattern, respectively; an insulation layer disposed between the first transparent electrode layer and the second transparent electrode layer; and contact holes formed in the insulation layer to electrically connect the first transparent electrode layer with the second transparent electrode layer; wherein the first transparent electrode layer and the second transparent electrode layer have a thickness of 100 to 200 nm, respectively, and the insulation layer has a thickness of 1,000 to 2,000 nm, thereby considerably decreasing a difference in reflectance on separate positions, as well as a touch screen panel including the transparent electrode pattern structure.
    Type: Application
    Filed: February 21, 2014
    Publication date: February 18, 2016
    Inventors: Gi Hwan AHN, Kyoung Su HA, Yoo Sung LEE, Yong Sun HAN