Patents by Inventor Hyuk Choi

Hyuk 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).

  • Publication number: 20230011187
    Abstract: Embodiments relate to a display device including two or more sections of pixels in a display area powered by supply voltages in power rails. The display device also includes two or more power detection circuits connected to two or more locations along the power rails to detect local voltages at the locations. Depending on an image being display during a frame, the two or more sections of pixels may cause changes in local voltages at the two or more locations. The detected local voltages are provided to two or more voltage regulators, and the two or more voltage regulators update supply voltages provided to the power rails to compensate for the changes in the local voltages.
    Type: Application
    Filed: July 9, 2021
    Publication date: January 12, 2023
    Inventors: Wenhao Qiao, Donghee Nam, Alexander Klement, Min Hyuk Choi
  • Patent number: 11552255
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 10, 2023
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hyun-Ju La, Yu-Jin Heo, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Patent number: 11538374
    Abstract: A power voltage generator includes a voltage sensor and a power controller. The voltage sensor is configured to sense a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal. The power breaker is configured to disconnect a power based on the first voltage and the second voltage.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Soo Choi, Dae-Sik Lee, Ji Youn Seo, Gwang Soo Ahn, Jong Jae Lee, Geun Hyuk Choi
  • Patent number: 11513573
    Abstract: A system includes a display panel, a temperature sensor configured to measure a temperature of the display panel, a thermoelectric device coupled to the display panel and configured to transfer heat to or from the display panel, and a controller electrically coupled to the temperature sensor and the thermoelectric device. The controller is configured to receive the measured temperature of the display panel and, based on the measured temperature of the display panel, send a second signal to the thermoelectric device to cause the thermoelectric device to remove a first quantity of heat from the display panel or send a third signal to the thermoelectric device to cause the thermoelectric device to provide a second quantity of heat to the display panel.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: November 29, 2022
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Min Hyuk Choi, Zhiming Zhuang, Kyung Won Park
  • Patent number: 11515484
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 29, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Geon-Yu Park, Young-Seok No, Seung-Gyu Yang, Ju-Hyon Cha, Dong-Jun Kim, Dae-Hyuk Choi, Joo-Dong Lee
  • Patent number: 11512980
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body. In one aspect, the device includes first row magnets coupled to a rotating body to rotate together and having n pole pairs, and second row magnets coupled to the rotating body to rotate together and having (n+1) pole pairs. The device also includes a first Hall sensor installed adjacent to the first row magnets and configured to detect a change in magnetism according to rotation of the first row magnets. The device further includes a second Hall sensor installed adjacent to the second row magnets and configured to detect a change in magnetism according to rotation of the second row magnets. The device further includes a controller configured to measure an absolute position of the rotating body using signals output from the first and second Hall sensors.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 29, 2022
    Assignee: Korea Electronics Technology Institute
    Inventors: Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim, Byong Jo Hyon, Yong Su Noh, Dong Myoung Joo
  • Publication number: 20220362347
    Abstract: Composition including GLP-2 or a long-acting conjugate thereof and uses thereof are disclosed. The composition including GLP-2 or a long-acting conjugate thereof is useful for preventing or treating metabolic bone diseases.
    Type: Application
    Filed: December 24, 2020
    Publication date: November 17, 2022
    Applicant: HANMI PHARM. CO., LTD.
    Inventors: Jae Hyuk CHOI, Jin Bong LEE, Sang Hyun LEE, Sang Don LEE, Min Young KIM
  • Publication number: 20220348191
    Abstract: An automated parking system and a method enables a vehicle to autonomously travel to and parks in a vacant parking slot based on communication with a parking infrastructure. In addition, the automated parking system and method for a driverless vehicle is capable of autonomously traveling from a parking slot to a pickup area via communication with the parking infrastructure.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Sung Won Yoon, Jin Hyuk Choi, Kyung Ho Yoo
  • Patent number: 11487357
    Abstract: In one embodiment, a computing system may determine a first region and a second region of an image based on gaze data of a user. The second region of the image may be displayed with lower image resolution. The system may access a first pixel value associated with the first region of the image and cause a first source driver circuit to generate a first pixel signal. The first pixel signal may be configured to control a luminance of a first number of pixels of the display. The system may access a second pixel value associated with the second region of the image and cause a second source driver circuit to generate a second pixel signal. The second pixel signal may be configured to control a second number of pixels, which is larger than the first number and may include a longer pulse duration than the first pixel signal.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: November 1, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Cheonhong Kim, Youngshik Yoon
  • Patent number: 11476425
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 18, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Han-Kook Oh, Yun-Ji Lee, Hye-Su Ji, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi
  • Patent number: 11475849
    Abstract: Embodiments relate to a display device with reduced scanning time by using a reference line separate from a data line to improve frame rate of the display device. A first pixel in a first row samples a reference voltage during a first period and samples a data voltage during a second period. A second pixel in a second row adjacent to the first row samples the reference voltage during a third period and samples the data voltage during a fourth period, where the third period overlaps with at least a portion of the second period. The reference voltage is provided by the reference line that is connected to a reference buffer, and the data voltage is provided by the data line connected to a source driver circuit.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: October 18, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Wenhao Qiao, Cheonhong Kim, Min Hyuk Choi
  • Patent number: 11467264
    Abstract: Provided is an apparatus for measuring a depth with a pseudo 4-tap pixel structure, the apparatus including a delta sigma circuit configured to calculate, through a delta sigma operation, a delta value of a first angle corresponding to a first row line of a pixel array for measuring a depth of an object and calculate, through a delta sigma operation, a delta value of a third angle corresponding to a second row line of the pixel array, a memory configured to store the calculated delta value of the first angle corresponding to the first row line, and an arithmetic logic unit (ALU) configured to compute depth information corresponding to the first row line by using the stored delta value of the first angle corresponding to the first row line and the calculated delta value of the third angle corresponding to the second row line.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: October 11, 2022
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Hyuk Choi, Dong Uk Kim, Jung Hoon Chun
  • Patent number: 11468577
    Abstract: A device for providing 3D image registration includes: a collection unit acquiring 3D depth data of a part and an image of a registration body from a depth recognition camera and acquiring three-dimensional coordinates of a positioning tool on the registration body from a positioning device; a first registration unit performing surface registration of a pre-stored 3D medical image of patient and the 3D depth data; a second registration unit extracting camera reference three-dimensional coordinates of a landmark attached to the registration body from the image of the registration body and converting pre-stored relative position information of the landmark with reference to the three-dimensional coordinates of the positioning tool, to perform registration of camera reference three-dimensional coordinates of the landmark and the converted position information thereof; and a third registration unit performing final registration by using results of registration performed by the first registration unit and the seco
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: October 11, 2022
    Assignee: GMEDITEC CORP.
    Inventors: Won-Jin Yi, Sangjeong Lee, Min-Hyuk Choi
  • Publication number: 20220314196
    Abstract: The present application relates to a method for manufacturing an inverse opal structure membrane filter, the method comprising the steps of: preparing a mixed solution by mixing a nanoparticle dispersion solution and a sacrificial particle dispersion solution; applying the mixed solution onto a substrate to dry it; and heat-treating the mixed solution, wherein the surface of the sacrificial particles is modified by positive charges or negative charges.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 6, 2022
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Hyun Suk JUNG, Gill Sang HAN, Hee Jung KIM, Jae Myeong LEE, Jin Hyuk CHOI, Jaesang LEE, Jaesung KIM, Jaemin CHOI, Saein SUH
  • Patent number: 11462176
    Abstract: Embodiments relate to a display device including bonding pads on a display element where data signals for a plurality of columns of pixels are provided to a same bonding pad in a time-divisional manner. Each of the bonding pads is connected to a plurality of demultiplexer circuits for sampling data signals at the bonding pad, storing the data signals, and transferring the sample data signals to corresponding columns of pixels. Each column of pixels includes a plurality of columns of subpixels, and a period during which a demultiplexer circuit samples the bonding pad for a column of subpixels of a first color may at least partially overlap with a period during which the demultiplexer circuit transfers previously sampled data signals to a column of subpixels of a second color.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 4, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Wenhao Qiao
  • Patent number: 11449544
    Abstract: Disclosed herein is a video search device comprising: at least one processor configured to implement an updating unit generating event object information based on feature information on an object detected in a video; and a storage configured to store comparison object information containing feature information on a reference object, wherein the processor is further configured to implement: an object information generating/deleting unit configured to create information on an object having a predetermined degree of similarity between the event object information and the comparison object information as final object information, and storing the final object information in the storage; and a data searching unit searching the final object information for data that satisfies a search criterion entered by a user.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 20, 2022
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Jae Won Choi, Jeong Hun Lee, Kye Won Kim, Ji Man Kim, Sang Wook Lee, Jong Hyeok Lee, Jae Woon Byun, Ho Jung Lee, Jin Hyuk Choi, Sweung Won Cheung, Yeon Woo Kim, Jin Yoon
  • Patent number: 11434271
    Abstract: A method for preparing a conjugate of a physiologically active polypeptide and a non-peptide polymer by linking physiologically active polypeptide with non-peptide polymer through a covalent bond using an organic solvent is provided. A method for preparing a physiologically active polypeptide complex by linking the conjugate with a carrier is provided. The complex shows improved in vivo duration and stability of the physiologically active polypeptide. The method can prepare the conjugate at a lower production cost, and the resulting conjugate shows an extension of in vivo activity at a relatively high level and significantly increase in the blood half-life.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 6, 2022
    Assignee: HANMI SCIENCE CO., LTD.
    Inventors: Dae Jin Kim, Myung Hyun Jang, Seung Su Kim, Jong Soo Lee, Jae Hyuk Choi, Se Chang Kwon
  • Patent number: 11434228
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 6, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Seong-Jong Park, Ji-Young Kim, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Patent number: 11436987
    Abstract: A display device dynamically determines a duration of the illumination period for a display frame to adjust an average brightness of a display device as the framerate dynamically changes. The display device includes a backlight unit (BLU) for providing light for displaying an image, a plurality of pixels for modulating the light provided by the BLU, and a controller circuit for controlling the BLU. The controller circuit measure a duration of a previous frame and determine a duration for an illumination period of a current frame based on the measured duration of the previous frame. The control circuit then controls the BLU based on the determined duration of the illumination period for the current frame.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: September 6, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Cheonhong Kim, Min Hyuk Choi, Alexander Klement
  • Patent number: 11427562
    Abstract: The present application provides a hetero-cyclic compound capable of significantly enhancing lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 30, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Han-Kook Oh, Jun-Tae Mo, Yong-Geun Jung, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee