Patents by Inventor Sung Ho Hwang

Sung Ho Hwang 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: 20250140174
    Abstract: Provided is a pixel driving circuit connected to a light-emitting element, the pixel driving circuit including a first memory storing a bit value of bit data associated with image data of a single frame including a plurality of subframes, a controller configured to generate a pulse width modulation (PWM) signal and a control signal for controlling light emission or non-light emission of the light-emitting element, based on data stored in the first memory, a driving unit configured to supply power to the light-emitting element based on the PWM signal and the control signal, received from the controller, and a bias circuit configured to supply bias power to the driving unit based on the control signal received from the controller.
    Type: Application
    Filed: September 23, 2024
    Publication date: May 1, 2025
    Applicant: SAPIEN SEMICONDUCTORS INC.
    Inventors: Sung Ho HWANG, Jin Woong JANG, Hye Min BAE, Dae Young JUNG, Vie Tan VO
  • Publication number: 20250141114
    Abstract: An antenna according to an embodiment comprises: a reflector, a transceiver disposed at one side of the reflector; and a support disposed at the other side of the reflector and serving to position the reflector apart from an installation position, wherein the reflector comprises: a reflective layer which reflects electromagnetic waves; a heating layer which is disposed on the lower surface of the reflective layer and generates heat for transfer to the top of the reflective layer; and a heat insulation layer which is disposed on the lower surface of the heating layer and serves to prevent heat generated in the heating layer from being transferred below the heating layer.
    Type: Application
    Filed: May 11, 2022
    Publication date: May 1, 2025
    Inventors: Geun Ho CHOI, Jong Wook HWANG, Sung Ho HWANG, Sung Man JO
  • Patent number: 12269348
    Abstract: Disclosed are an apparatus and method for controlling autonomous traveling of an independent driving electric vehicle. An apparatus for controlling autonomous traveling of an independent driving electric vehicle according to one aspect of the present disclosure includes a measurement unit configured to measure traveling information of a vehicle, a steering angle controller configured to calculate a steering angle for following a look ahead point based on path information of the vehicle and the traveling information, and control the vehicle according to the steering angle, and a torque vectoring controller configured to calculate a lateral error and an angular error of the vehicle based on the path information and the traveling information, generate a control moment based on the lateral error and the angular error, and control a motor torque of each motor based on the control moment.
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: April 8, 2025
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Sung Ho Hwang, Ho Yong Na
  • Patent number: 12190797
    Abstract: Provided is a pixel driving circuit including a first circuit configured to control, in a data writing mode, a signal related to driving of one or more light-emitting elements, and a second circuit configured to supply, in a driving mode, power to the one or more light-emitting elements based on a signal transmitted from the first circuit.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: January 7, 2025
    Assignee: SAPIEN Semiconductors Inc.
    Inventors: Sung Ho Hwang, Ji Haeng Lee, Hye Min Bae, Dae Young Jung
  • Patent number: 12136385
    Abstract: A pixel driving circuit includes a memory unit including a data memory and a register and storing data related to driving of a luminous element, a driver supplying electrical power to the luminous element based on data stored in the memory unit, and a reset unit controlling reset of the memory unit, wherein the reset unit generates a first reset signal for controlling reset of the data memory and a second reset signal for controlling reset of the register.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: November 5, 2024
    Assignee: SAPIEN Semiconductors Inc.
    Inventors: Ji Han Kim, Sung Ho Hwang, Ji Haeng Lee, Dae Young Jung, Jong Gu Jeon
  • Publication number: 20240346987
    Abstract: Provided is a display device that controls brightness using a plurality of PWM source signals. The display device includes a display panel including a plurality of pixels forming a plurality of rows and a plurality of columns, and a PWM driving circuit including a unit driving circuit connected to each of a plurality of lines corresponding to the plurality of rows or the plurality of columns, wherein the PWM driving circuit sequentially applies PWM signals output from the unit driving circuits to the plurality of lines to control the brightness of the plurality of pixels for each line the brightness of the plurality of pixels may be controlled for each line.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 17, 2024
    Applicant: SAPIEN SEMICONDUCTORS INC.
    Inventors: Jin Woong JANG, Sung Ho Hwang, Hye Min Bae
  • Patent number: 12112667
    Abstract: A pixel driving circuit includes a memory unit storing data based on a first signal and a second signal, a driver connected to a luminous element and supplying electric power to the luminous element based on the data stored in the memory unit, and a test controller controlling entry into a test mode in which it is tested whether the pixel driving circuit is defective, wherein the test controller generates a test mode activation signal based on the first signal and the second signal.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: October 8, 2024
    Assignee: SAPIEN Semiconductors Inc.
    Inventors: Ji Han Kim, Sung Ho Hwang, Ji Haeng Lee, Dae Young Jung
  • Patent number: 11922860
    Abstract: Provided is a pixel driving circuit including a first circuit configured to control, in a data writing mode, a signal related to driving of one or more light-emitting elements, and a second circuit configured to supply, in a driving mode, power to the one or more light-emitting elements based on a signal transmitted from the first circuit.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: March 5, 2024
    Assignee: Sapien Semiconductors Inc.
    Inventors: Sung Ho Hwang, Ji Han Kim, Ji Haeng Lee, Hye Min Bae, Dae Young Jung
  • Publication number: 20240062714
    Abstract: Provided is a pixel driving circuit including a first circuit configured to control, in a data writing mode, a signal related to driving of one or more light-emitting elements, and a second circuit configured to supply, in a driving mode, power to the one or more light-emitting elements based on a signal transmitted from the first circuit.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 22, 2024
    Applicant: SAPIEN SEMICONDUCTORS INC.
    Inventors: Sung Ho HWANG, Ji Haeng LEE, Hye Min BAE, Dae Young JUNG
  • Publication number: 20240054944
    Abstract: A pixel driving circuit includes a memory unit including a data memory and a register and storing data related to driving of a luminous element, a driver supplying electrical power to the luminous element based on data stored in the memory unit, and a reset unit controlling reset of the memory unit, wherein the reset unit generates a first reset signal for controlling reset of the data memory and a second reset signal for controlling reset of the register.
    Type: Application
    Filed: July 14, 2023
    Publication date: February 15, 2024
    Applicant: Sapien Semiconductor Inc.
    Inventors: Ji Han KIM, Sung Ho HWANG, Ji Haeng LEE, Dae Young JUNG, Jong Gu JEON
  • Publication number: 20240054928
    Abstract: A pixel driving circuit includes a memory unit storing data based on a first signal and a second signal, a driver connected to a luminous element and supplying electric power to the luminous element based on the data stored in the memory unit, and a test controller controlling entry into a test mode in which it is tested whether the pixel driving circuit is defective, wherein the test controller generates a test mode activation signal based on the first signal and the second signal.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 15, 2024
    Applicant: Sapien Semiconductors Inc.
    Inventors: Ji Han KIM, Sung Ho HWANG, Ji Haeng LEE, Dae Young JUNG
  • Publication number: 20230405096
    Abstract: An ADAMTS13 mutant protein having an improved escaping rate against an autoantibody and a composition that is suitable for preventing or treating thrombotic diseases are disclosed. By efficiently avoiding autoantibodies known to have high binding affinity to the main domain of ADAMTS13, the ADAMTS13 variant protein of the present invention can be used as an effective therapeutic composition for various thrombotic diseases, such as TTP (thrombotic thrombocytopenic purpura), in which the presence of such autoantibodies is the main etiology, and can stably maintain the biological activity thereof when administered into a body. In addition, a newly identified site within ADAMTS13, which is recognized by an autoantibody can be used in screening novel ADAMTS13 variants having an improved autoantibody escaping rate by applying a combination of various mutations within the corresponding site.
    Type: Application
    Filed: October 25, 2021
    Publication date: December 21, 2023
    Applicant: GREEN CROSS CORPORATION
    Inventors: Hyun-Ja NAM, Sung Ho HWANG, Heechun KWAK, Gahee CHOI, Suyong KIM, Yu Young KIM, Yongmin LEE, Chae Mok LEE, Sunhye SHIN, Young Eun KWON, Seunghyun JO
  • Publication number: 20230360587
    Abstract: Provided is a pixel driving circuit including a first circuit configured to control, in a data writing mode, a signal related to driving of one or more light-emitting elements, and a second circuit configured to supply, in a driving mode, power to the one or more light-emitting elements based on a signal transmitted from the first circuit.
    Type: Application
    Filed: September 16, 2022
    Publication date: November 9, 2023
    Applicant: Sapien Semiconductors Inc.
    Inventors: Sung Ho HWANG, Ji Han Kim, Ji Haeng Lee, Hye Min Bae, Dae Young Jung
  • Publication number: 20230131835
    Abstract: Disclosed are an apparatus and method for controlling autonomous traveling of an independent driving electric vehicle. An apparatus for controlling autonomous traveling of an independent driving electric vehicle according to one aspect of the present disclosure includes a measurement unit configured to measure traveling information of a vehicle, a steering angle controller configured to calculate a steering angle for following a look ahead point based on path information of the vehicle and the traveling information, and control the vehicle according to the steering angle, and a torque vectoring controller configured to calculate a lateral error and an angular error of the vehicle based on the path information and the traveling information, generate a control moment based on the lateral error and the angular error, and control a motor torque of each motor based on the control moment.
    Type: Application
    Filed: August 2, 2022
    Publication date: April 27, 2023
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Sung Ho HWANG, Ho Yong NA
  • Patent number: 11541877
    Abstract: An apparatus with torque vectoring control of a vehicle with an independent driving motor includes: one or more processors configured to: measure driving information including a steering angle, a yaw rate, a longitudinal velocity, lateral acceleration and longitudinal acceleration of the vehicle; calculate a driving aggressiveness (DA) index representing driving aggressiveness of a driver through an exponential weighted moving average (EWMA) operation using the driving information; calculate a target yaw rate based on the driving information and the DA index; and generate a control moment based on the driving information, the DA index and the target yaw rate, wherein, for the calculating of the DA index, the one or more processor are configured to calculate the DA index to have a higher value than a case of generating only longitudinal acceleration or a case of generating only lateral acceleration, in response to the longitudinal acceleration and the lateral acceleration being generated at a same time.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 3, 2023
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Sung-Ho Hwang, Hoyong Na
  • Publication number: 20220219677
    Abstract: An apparatus with torque vectoring control of a vehicle with an independent driving motor includes: one or more processors configured to: measure driving information including a steering angle, a yaw rate, a longitudinal velocity, lateral acceleration and longitudinal acceleration of the vehicle; calculate a driving aggressiveness (DA) index representing driving aggressiveness of a driver through an exponential weighted moving average (EWMA) operation using the driving information; calculate a target yaw rate based on the driving information and the DA index; and generate a control moment based on the driving information, the DA index and the target yaw rate, wherein, for the calculating of the DA index, the one or more processor are configured to calculate the DA index to have a higher value than a case of generating only longitudinal acceleration or a case of generating only lateral acceleration, in response to the longitudinal acceleration and the lateral acceleration being generated at a same time.
    Type: Application
    Filed: October 20, 2021
    Publication date: July 14, 2022
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Sung-Ho HWANG, Hoyong NA
  • Publication number: 20210264174
    Abstract: An apparatus for providing a top view includes: a camera apparatus including a plurality of cameras; an overlap region determiner configured to match a plurality of images output from the plurality of cameras, to determine an overlap region; an image comparator configured to divide the overlap region into a plurality of blocks having a matrix form, and compare two images, among the plurality of images, output from two cameras in which imaging regions partially overlap, among the plurality of cameras, for each of the plurality of blocks; and a peripheral object detector configured to detect an object and a ground around a vehicle, according to a comparison result of the image comparator.
    Type: Application
    Filed: October 21, 2020
    Publication date: August 26, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Si Young AHN, Sung Han WON, Doo Hyung KWON, Sung Ho HWANG
  • Publication number: 20210161111
    Abstract: The present invention relates to a factor VIII or factor IX gene knockout rabbit, a method for preparing the same and a use thereof and, more particularly, to a transgenic rabbit whose factor VIII or factor IX gene has been knocked out through the CRISPR/Cas9 system, a method for preparing the same and a use thereof. According to the present invention, in the transgenic rabbit, whose factor VIII and/or factor IX gene has been knocked out, the functions of factor VIII and/or factor IX, which are proteins that perform critical functions for the development of hemophilia, are inhibited, such that the transgenic rabbit is useful for the development of hemophilia treatments.
    Type: Application
    Filed: September 20, 2018
    Publication date: June 3, 2021
    Inventors: So Ra KIM, Myung Eun JUNG, Min Jung KIM, Seung Hyun JO, Sung Ho HWANG, Hee Chun KWAK, Su Min LEE, Hyun Ja NAM
  • Patent number: 10816712
    Abstract: The optical film according to the present invention uses polymethylmethacrylate that does not comprise cyclic monomers, but has excellent dimensional stability and optical properties, and thus, can be usefully used as a protection film of a polarization plate.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Byoung Jun Mun, Joong Hoon Lee, Sung Ho Hwang, Sei Jung Park, Heon-Sik Song
  • Patent number: 10633530
    Abstract: The resin composition for an optical material according to the present invention has features that it can implement a low retardation value during the preparation of an optical film, by using a polycarbonate composition satisfying a specific condition as a retardation-adjusting agent while using polymethyl methacrylate not containing a monomer having a cyclic structure at the main chain of the polymer.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Joong Hoon Lee, Sei Jung Park, Sung Ho Hwang, Byoung Jun Mun, Heon-Sik Song