Patents by Inventor Kyoung Sik Choi

Kyoung Sik 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: 11965471
    Abstract: A method and apparatus for controlling a vehicle are disclosed. The method comprises acquiring an acceleration of a front wheel and a rear wheel, determining that the front wheel is passing a bump of a road in response to determining that the acceleration of the front wheel is outside an acceleration range and fluctuates in the range wider than the acceleration range within a first maximum time period, determining that the rear wheel is passing the bump in response to determining that the acceleration of the rear wheel is outside the acceleration range and fluctuates in the range wider than the acceleration range within a second maximum time period, and in response to determining that the front wheel has passed the bump and the rear wheel is passing the bump, controlling a drive unit of the vehicle.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: April 23, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Yung Sik Choi, Kyoung Jun Yoon
  • Publication number: 20240090328
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 14, 2024
    Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
  • Patent number: 11875725
    Abstract: A display device including a display panel according to an embodiment of the present application includes a plurality of pixels, a timing controller configured to receive a compensation command signal in a vertical blank period in which no image data are written in the pixels, and a sensing circuit configured to sense driving properties of the pixels in at least one sensing period corresponding to the compensation command signal, wherein a length of the vertical blank period is different from each other in a first frame and a second frame, and a number of sensing periods having a predetermined length varies depending on the length of the vertical blank period.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Won Cho, Kyoung Sik Choi
  • Publication number: 20230306890
    Abstract: A display device including a display panel according, to an embodiment of the present application includes a plurality of pixels, a timing controller configured to receive a compensation command signal in a vertical blank period in which no image data are written in the pixels, and a sensing circuit configured to sense driving properties of the pixels in at least one sensing period corresponding to the compensation command signal, wherein a length of the vertical blank period is different from each other in a first frame and a second frame, and a number of sensing periods having a predetermined length varies depending on the length of the vertical blank period.
    Type: Application
    Filed: August 20, 2021
    Publication date: September 28, 2023
    Inventors: Won CHO, Kyoung Sik CHOI
  • Patent number: 10449392
    Abstract: An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: October 22, 2019
    Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATIVE FOUNDATION
    Inventors: Tae Suk Suh, Ji Yeon Park, Seu Ran Lee, Jeong Woo Lee, Hae Jin Park, Kyoung Sik Choi
  • Publication number: 20190281947
    Abstract: Disclosed are an artificial nail and a transfer assembly set for an artificial nail. The artificial nail according to an embodiment of the present disclosure includes a design layer having a plurality of first die-cut lines, and an adhesion layer provided below the design layer, and which is adhered to a nail main body.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 19, 2019
    Applicant: JC KOREA CORP.
    Inventors: Dong Sung KIM, Kyoung Sik CHOI
  • Publication number: 20190281945
    Abstract: Disclosed are a sticker transfer assembly set and a sticker transfer method using the same. The sticker transfer assembly set according to an embodiment of the present disclosure includes a sticker having a decoration peelably adhered to a release sheet, and a transfer body including an adhesion part, wherein the decoration is adhered to the adhesion part when pressing an upper surface of the decoration adhered to the release sheet upon contact, wherein the transfer body peels the decoration off from the release sheet and attaches the decoration to a target by pressing the decoration onto the target upon contact.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 19, 2019
    Applicant: JC KOREA CORP.
    Inventors: Dong Sung KIM, Kyoung Sik CHOI
  • Publication number: 20180036555
    Abstract: An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.
    Type: Application
    Filed: April 2, 2015
    Publication date: February 8, 2018
    Applicant: CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Tae Suk SUH, Ji Yeon PARK, Seu Ran LEE, Jeong Woo LEE, Hae Jin PARK, Kyoung Sik CHOI
  • Patent number: 9858866
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 2, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, UiTaek Jeong
  • Patent number: 9715848
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Publication number: 20170103708
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, UiTaek Jeong
  • Patent number: 9548020
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 17, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Hyoung Kim, Seung Tae Kim, Kyoung Sik Choi, Ui Jeong
  • Publication number: 20140168039
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Publication number: 20130093652
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel comprising a plurality of pixel regions, each pixel region comprising a scan line and a data line crossing each other, each pixel region further comprising an organic light-emission element and a drive transistor configured to drive the organic light emission element; and a circuit configured to sense a threshold voltage of the drive transistor in a sensing interval and control a light emission of the organic light emission element within the pixel region in a display interval.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 18, 2013
    Applicant: LG Display Co., Ltd.
    Inventors: Jin Hyoung KIM, Seung Tae Kim, Kyoung Sik Choi, Ui Jeong
  • Publication number: 20120163003
    Abstract: A light emitting apparatus is provided. The light emitting apparatus includes a support unit configured to protrude to a front side to which light is emitted, and a heat emitting unit configured to emit heat generated by the light emission in multiple directions. According to the structure, the heat may be emitted quickly. Therefore, quality of the light emitting apparatus may be increased.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 28, 2012
    Inventors: Ki Un LEE, Chang Sub Lee, Kyeong Ik Min, Hyung Jin Kim, Sang Ho Yoon, Kyoung Sik Choi
  • Patent number: D861987
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: October 1, 2019
    Assignee: JC KOREA CORP.
    Inventors: Dong Sung Kim, Kyoung Sik Choi
  • Patent number: D862798
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 8, 2019
    Assignee: JC KOREA CORP.
    Inventors: Kyoung Sik Choi, Dong Sung Kim
  • Patent number: D874919
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: February 11, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi
  • Patent number: D876947
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 3, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi
  • Patent number: D883086
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 5, 2020
    Assignee: JC KOREA CORP.
    Inventor: Kyoung Sik Choi