Patents by Inventor Sung Hyun Cho

Sung Hyun Cho 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: 20240241447
    Abstract: A resist stripper composition according to an embodiment includes an alkali compound including an ammonium hydroxide-based compound, ethanol, and a polar organic solvent, which includes a sulfoxide-based compound. In a pattern formation method according to an embodiment, a photoresist pattern is formed on a substrate, a conductive pattern using the photoresist pattern is formed, and the photoresist pattern is removed by using the resist stripper composition. A resist stripper having an improved stripping rate and resist solubility is provided.
    Type: Application
    Filed: February 8, 2024
    Publication date: July 18, 2024
    Inventors: SUNG SIK KIM, HAN BYEOL KANG, JEONG HYUN KIM, SOON HONG PANG, HYUNG JIN CHO
  • Publication number: 20240212093
    Abstract: A method for generating a super-resolution video by using a multi-camera video may comprise: generating a resolution-improved ultra-wide-angle video frame at an arbitrary time step by inputting an ultra-wide-angle video frame of a first resolution at the arbitrary time step, ultra-wide-angle video frames right before and right after the arbitrary time step, and a wide-angle video frame for reference at the arbitrary time step, to a bidirectional neural network, wherein the generating of the resolution-improved ultra-wide-angle video frame is performed using accumulated information at a past time step based on the arbitrary time step, and accumulated information at a future time step based on the arbitrary time step, and wherein a second resolution, which is a resolution of the generated ultra-wide-angle video frame, is greater than the first resolution.
    Type: Application
    Filed: December 26, 2023
    Publication date: June 27, 2024
    Applicant: POSTECH Research and Business Development Foundation
    Inventors: Seung Yong LEE, Sung Hyun CHO, Jun Yong LEE
  • Patent number: 11951965
    Abstract: A system and method includes upgrading a metamodel for friction coefficient prediction of a brake, in which the metamodel for friction coefficient prediction may be constructed using various derivative parameters relating to the speed, temperature and pressure of a brake disc in addition to basic parameters, such as the speed, temperature and pressure of the brake disc, to greatly improve performance and accuracy in friction coefficient prediction using the metamodel for friction coefficient prediction and to improve accuracy in evaluation of the driving performance of a vehicle through an increase in accuracy of determination of brake torque.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: April 9, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Sung Hyun Cho, Sung Hoon Bang
  • Patent number: 11953069
    Abstract: A system and method of accurately evaluating the performance of a vehicle device having a friction component, including a brake disc, a clutch disc, or the like, may be achieved by predicting the accurate friction coefficient of the friction component in consideration of changes in the temperature, rotation speed, and hydraulic pressure of the friction component, and determining the operating torque of the vehicle device or system having the friction component through reflecting the predicted friction coefficient, during the performance evaluation simulation process of the vehicle device including the friction component.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: April 9, 2024
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Publication number: 20240096557
    Abstract: A capacitor component includes a body having a first surface and a second surface opposing each other and including a multilayer structure in which a plurality of dielectric layers are stacked and first and second internal electrodes are alternately disposed with respective dielectric layers interposed therebetween and exposed to the first surface and the second surface, respectively, first and second metal layers covering the first surface and the second surface and connected to the first and second internal electrodes, respectively, first and second ceramic layers covering the first and second metal layers, and first and second external electrodes covering the first and second ceramic layers and connected to the first and second metal layers to be electrically connected to the first and second internal electrodes, respectively.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Inventors: Sung Hyun CHO, Byeong Chan KWON, Yong Jin YUN, Ki Pyo HONG, Jae Yeol CHOI
  • Patent number: 11875098
    Abstract: An apparatus and a method can accurately estimate and determine a friction coefficient of a brake friction material in real time taking into consideration current driving conditions of a vehicle. The apparatus includes a model generation device configured to generate a friction coefficient meta model to determine the friction coefficient based on information of an operation state of a brake using raw data acquired through a preceding test evaluation process.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: January 16, 2024
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Patent number: 11869722
    Abstract: A capacitor component includes a body having a first surface and a second surface opposing each other and including a multilayer structure in which a plurality of dielectric layers are stacked and first and second internal electrodes are alternately disposed with respective dielectric layers interposed therebetween and exposed to the first surface and the second surface, respectively, first and second metal layers covering the first surface and the second surface and connected to the first and second internal electrodes, respectively, first and second ceramic layers covering the first and second metal layers, and first and second external electrodes covering the first and second ceramic layers and connected to the first and second metal layers to be electrically connected to the first and second internal electrodes, respectively.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyun Cho, Byeong Chan Kwon, Yong Jin Yun, Ki Pyo Hong, Jae Yeol Choi
  • Patent number: 11827120
    Abstract: A braking control method using a predicted friction coefficient of a brake pad in a braking apparatus, which may predict a friction coefficient of a brake pad according to the traveling situation in real time using a wheel velocity, a brake disc temperature, and a braking hydraulic pressure, may include determining a target braking torque determined using the predicted friction coefficient, and then allowing the determined target braking torque to be reflected to a real braking torque through a feedforward control, upon a hydraulic braking control for securing the traveling stability of a vehicle or upon a cooperative control between the regenerative braking and the hydraulic braking, improving the accuracy and response speed of the braking control.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 28, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Sung Hyun Cho
  • Publication number: 20230271610
    Abstract: An embodiment vehicle includes a navigation device, a communication device, a processor, a non-transitory memory storing software that, when executed by the processor, causes the processor to set a reference traffic light and a front traffic light based on a current location, receive first operation information of the reference traffic light and second operation information of the front traffic light from a server, predict an operation of the front traffic light at a time point at which the vehicle is to pass through the front traffic light based on a vehicle speed, the first operation information, and the second operation information, and control driving according to the predicted operation.
    Type: Application
    Filed: September 19, 2022
    Publication date: August 31, 2023
    Inventors: Keun Jin Kim, Sung Hyun CHO
  • Patent number: 11696261
    Abstract: The disclosure generally relates to techniques for efficiently allocating resources allocated from a macro base station by estimating the communication possibility of each sensor without direct communication with the sensor in a mobile base station. A method for resource allocation in a mobile base station may include detecting at least one sensor within a communicable range of the mobile base station, estimating a communication possibility of the sensor based on a message queue and a remaining battery level of the at least one sensor, receiving resource allocation from a macro base station based on the communication possibility, and allocating the allocated resource to the sensor.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: July 4, 2023
    Assignees: AGENCY FOR DEFENSE DEVELOPMENT, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
    Inventors: Cheol Sun Park, Sung Hyun Cho, Joo Han Park, Soo Hyeong Kim
  • Publication number: 20230196520
    Abstract: The present disclosure provides a method of effectively deblurring a defocus blur in an input image based on an inverse kernel. The defocus deblurring method includes: generating, by an encoder network, an input feature map by encoding the input image; filtering, by an atrous convolution network including a plurality of atrous convolutional layers arranged in parallel, the input feature map to generate an output feature map having reduced blur component; and generating, by a decoder network, an output image having reduced blur from the output feature map with the reduced blur component and the input image.
    Type: Application
    Filed: October 26, 2022
    Publication date: June 22, 2023
    Applicant: POSTECH Research and Business Development Foundation
    Inventors: Seung Yong LEE, Hyeong Seok SON, Sung Hyun CHO, Jun Yong LEE
  • Publication number: 20220363227
    Abstract: A system and method includes upgrading a metamodel for friction coefficient prediction of a brake, in which the metamodel for friction coefficient prediction may be constructed using various derivative parameters relating to the speed, temperature and pressure of a brake disc in addition to basic parameters, such as the speed, temperature and pressure of the brake disc, to greatly improve performance and accuracy in friction coefficient prediction using the metamodel for friction coefficient prediction and to improve accuracy in evaluation of the driving performance of a vehicle through an increase in accuracy of determination of brake torque.
    Type: Application
    Filed: October 1, 2021
    Publication date: November 17, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sung Hyun Cho, Sung Hoon Bang
  • Publication number: 20220366539
    Abstract: An image processing method and apparatus based on machine learning are disclosed. The image processing method based on machine learning, according to the present invention, may comprise the steps of: generating a first corrected image by inputting an input image to a first convolution neural network; generating an intermediate image on the basis of the input image; performing machine learning on a first loss function of the first convolution neural network on the basis of the first corrected image and the intermediate image; and performing machine learning on a second loss function of the first convolution neural network on the basis of the first corrected image and a natural image.
    Type: Application
    Filed: November 11, 2020
    Publication date: November 17, 2022
    Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Seung Yong LEE, Sung Hyun CHO, Hyeong Seok SON
  • Patent number: 11498559
    Abstract: A launch control method for a vehicle may include a step of increasing clutch torque of a clutch according to a decrease in braking pressure, a step of maintaining a current level of the clutch torque for a first reference duration, a step of gradually reducing the clutch torque within a range which is lower than the first reference torque level and is equal to or greater than a second reference torque level which is lower than the first reference torque level, a step of gradually increasing the clutch torque until the clutch torque reaches a third reference torque level which is higher than the first reference torque level, and a step of bringing the control to a stop when a state in which a clutch slip is less than a predetermined critical synchronous slip is maintained for a predetermined critical synchronization duration or longer than the predetermined critical synchronization duration.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: November 15, 2022
    Assignees: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventor: Sung Hyun Cho
  • Patent number: 11474899
    Abstract: An open-channel storage device being configured to be controlled by a host including a bad block manager, the open-channel storage device including a buffer memory and a nonvolatile memory device. An operation method of the open-channel storage device includes performing a normal operation under control of the host, detecting a sudden power-off immediately after a program failure associated with a first data block among a plurality of memory blocks included in the nonvolatile memory device while the normal operation is performed, dumping a plurality of user data stored in the buffer memory to a dump block among the plurality of memory blocks in response to the detected sudden power-off, detecting a power-on, and performing a data recovery operation on the plurality of user data stored in the dump block in response to the detected power-on.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-Chul Kim, Jongwon Lee, Kyungwook Ye, Minseok Ko, Yangwoo Roh, Sung-Hyun Cho
  • Publication number: 20220266833
    Abstract: A launch control method for a vehicle may include a step of increasing clutch torque of a clutch according to a decrease in braking pressure, a step of maintaining a current level of the clutch torque for a first reference duration, a step of gradually reducing the clutch torque within a range which is lower than the first reference torque level and is equal to or greater than a second reference torque level which is lower than the first reference torque level, a step of gradually increasing the clutch torque until the clutch torque reaches a third reference torque level which is higher than the first reference torque level, and a step of bringing the control to a stop when a state in which a clutch slip is less than a predetermined critical synchronous slip is maintained for a predetermined critical synchronization duration or longer than the predetermined critical synchronization duration.
    Type: Application
    Filed: August 27, 2021
    Publication date: August 25, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventor: Sung Hyun CHO
  • Publication number: 20220198616
    Abstract: A video quality improvement method may comprise: inputting a structure feature map converted from current target frame by first convolution layer to first multi-task unit and second multi-task unit, which is connected to an output side of first multi-task unit, among the plurality of multi-task units; inputting a main input obtained by adding the structure feature map to a feature space, which is converted by second convolution layer from those obtained by concatenating, in channel dimension, a previous target frame and a correction frame of the previous frame to first multi-task unit; and inputting current target frame to Nth multi-task unit connected to an end of output side of second multi-task unit, wherein Nth multi-task unit outputs a correction frame of current target frame, and machine learning of the video quality improvement model is performed using an objective function calculated through the correction frame of current target frame.
    Type: Application
    Filed: October 8, 2021
    Publication date: June 23, 2022
    Inventors: Seung Yong LEE, Jun Yong LEE, Hyeong Seok SON, Sung Hyun CHO
  • Publication number: 20220176826
    Abstract: A braking control method using a predicted friction coefficient of a brake pad in a braking apparatus, which may predict a friction coefficient of a brake pad according to the traveling situation in real time using a wheel velocity, a brake disc temperature, and a braking hydraulic pressure, may include determining a target braking torque determined using the predicted friction coefficient, and then allowing the determined target braking torque to be reflected to a real braking torque through a feedforward control, upon a hydraulic braking control for securing the traveling stability of a vehicle or upon a cooperative control between the regenerative braking and the hydraulic braking, improving the accuracy and response speed of the braking control.
    Type: Application
    Filed: July 13, 2021
    Publication date: June 9, 2022
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventor: SUNG HYUN CHO
  • Patent number: 11339838
    Abstract: A control method of a clutch for a vehicle may include determining whether or not learning of clutch characteristics is possible; learning the clutch characteristics when the learning of the clutch characteristics is possible; determining a clutch torque for controlling the clutch in consideration of a change amount in the clutch torque before and after the learning and controlling the clutch by the determined clutch torque; and determining whether or not it is difficult to continue to learn the clutch characteristics.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: May 24, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sung Hyun Cho
  • Patent number: 11280407
    Abstract: A shift control method can be used for a vehicle with a dual-clutch transmission (DCT). A controller determines whether or not a power-on upshift is initiated in a state in which a high performance mode has been selected. The controller performs a torque phase in which a coupling-side clutch torque is gradually increased and a release-side clutch torque is gradually released. The coupling-side clutch torque is gradually increased to a target coupling-side clutch torque corresponding to a value obtained by adding a push feel torque to a base torque. The controller performs an inertia phase in which the coupling-side clutch torque is gradually increased while tracing an engine torque such that an engine speed is synchronized with a coupling-side clutch speed. The controller completes speed change through gradual decrease of the coupling-side clutch torque.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 22, 2022
    Assignees: Hyundai Motor Company, Kia Motors Cornoration
    Inventor: Sung Hyun Cho