Patents by Inventor Chul Choi

Chul 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: 20230350459
    Abstract: A display device includes a display panel; a first digitizer layer disposed on the display panel; a second digitizer layer disposed on the display panel and separated from the first digitizer layer, a first plate member disposed on the first digitizer layer, and a second plate member disposed on the second digitizer layer, wherein each of the first plate member and the second plate member includes a plurality of plate portions and one or more hinge portions configured to rotatably connect the plurality of plate portions to each other.
    Type: Application
    Filed: July 5, 2023
    Publication date: November 2, 2023
    Inventors: Dong Woo SEO, So Jeong La, Dong Jin Park, Jai Ku Shin, Seok Chan Lee, Sung Chul Choi, Ji Hye Shin
  • Patent number: 11800652
    Abstract: A display device including a display panel including a folding area and a non-folding area adjacent along a first direction, a support layer facing the display panel with a barrier layer therebetween, openings defined in the support layer and corresponding to the folding area, a cushion layer facing the display panel with the support layer therebetween, and a barrier adhesive layer between the barrier layer and the support layer, the barrier adhesive layer including a first barrier portion and a second barrier portion spaced apart from each other along the first direction with the plurality of openings of the support layer therebetween.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaiku Shin, Dongjin Park, Dongwoo Seo, Sung Chul Choi, Sojeong La, Jihye Shin, Seokchan Lee
  • Patent number: 11793931
    Abstract: A device for conveying a biological material includes a body including an aperture configured to enable connection with an outside of the body and a chamber configured to store a biological material, a plurality of conveyors accommodated in the body and configured to convey the material, and a driver configured to select one of the plurality of conveyors, align the selected conveyor with the aperture, and move the selected conveyor to the outside of the body through the aperture.
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: October 24, 2023
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Suk Ho Park, Hyun Chul Choi
  • Publication number: 20230335830
    Abstract: Provided is a battery apparatus. The battery apparatus includes a plurality of battery cells, a housing configured to accommodate the plurality of battery cells, a heat sink having a refrigerant passage therein to cool the battery cells inside the housing, and a moisture absorbent adjacent to the heat sink to absorb moisture.
    Type: Application
    Filed: October 26, 2021
    Publication date: October 19, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong Yoon KEUM, Jong Chul CHOI
  • Publication number: 20230336740
    Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.
    Type: Application
    Filed: May 15, 2023
    Publication date: October 19, 2023
    Inventors: Sung Chang LIM, Hui Yong Kim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Jae Gon Kim, Sang Yong Lee, Hae Chul CHOI
  • Publication number: 20230325712
    Abstract: The present disclosure relates to a system and method for imitation learning. The system for imitation learning may include a data augmentation device configured to acquire a plurality of augmented data sets from a plurality of demonstration data sets corresponding to an expert's demonstration behavior trajectory using a behavioral replication model that infers behavioral data from input state data and an inverse behavioral replication model that infers state data from input behavioral data, and an imitation learning device configured to perform imitation learning to derive a model that outputs behavioral data similar to an expert in a specific state using the plurality of demonstration data sets and the plurality of augmented data sets, in which the plurality of demonstration data sets and the plurality of augmented data sets each include a pair of corresponding state data and behavioral data.
    Type: Application
    Filed: February 15, 2023
    Publication date: October 12, 2023
    Inventor: Jin Chul CHOI
  • Patent number: 11785753
    Abstract: A display device includes a flexible display portion, a case which accommodates the display portion, and a blocking layer which is disposed between the display portion and the case. The blocking layer includes a plurality of nanolines.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Ho Park, Gyung-Kook Kwak, Jeong Il Yoo, Sung Chul Choi
  • Patent number: 11782560
    Abstract: A display device includes a display module that is foldable about first and second folding axes that are spaced apart from each other along a first direction and are extended in a second direction crossing the first direction, and a digitizer module below the display module. The digitizer module includes a plurality of first electrodes that are extended in the first direction and are arranged along the second direction, and a plurality of second electrodes that are extended in the second direction, are arranged along the first direction, and are electrically disconnected from the first electrodes. The plurality of first electrodes include a plurality of first sub-electrodes overlapped with the first folding axis and a plurality of second sub-electrodes overlapped with the second folding axis and located at a different layer from the first sub-electrodes.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: October 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaiku Shin, Dongjin Park, Dongwoo Seo, Sung Chul Choi
  • Patent number: 11784854
    Abstract: A receiver includes an equalization circuit configured to output a data sample signal and an edge sample signal by sampling a data input signal according to clock signal, and to perform an equalization operation according to the data sample signal and the edge sample signal; and a clock gate circuit configured to select the clock signals from among a plurality of multi-phase clock signals according to a selection signal.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: October 10, 2023
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Moon-Chul Choi, Sanghee Lee, Seungha Roh, Kwangho Lee, Deog-Kyoon Jeong
  • Publication number: 20230309363
    Abstract: A display device includes a display panel including a first area, a second area, and a bending area disposed between the first area and the second area and having a predetermined radius of curvature, a first protective member including a first coupling layer disposed under the display panel in the first area and a first protective layer disposed under the first coupling layer, and a second protective member disposed under the display panel in the second area. The first protective member has a first thickness different from a second thickness of the second protective member. Accordingly, the display device is easily bent.
    Type: Application
    Filed: January 12, 2023
    Publication date: September 28, 2023
    Inventors: SUNGJUNE PARK, SUNG CHUL CHOI, SUNHAENG CHO
  • Patent number: 11770550
    Abstract: Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: September 26, 2023
    Assignees: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Sung Chang Lim, Hae Chul Choi, Se Yoon Jeong, Suk Hee Cho, Hui Yong Kim, Jin Ho Lee, Ha Hyun Lee, Jong Ho Kim, Jin Soo Choi, Jin Woong Kim, Gwang Hoon Park, Kyung Yong Kim, Dong Gyu Sim, Seoung Jun Oh
  • Publication number: 20230300340
    Abstract: Disclosed herein is a method of decoding an image. The method includes determining a prediction mode of a current block as a merge mode with motion vector difference (MMVD), deriving a merge candidate list of the current block, deriving a motion vector predictor of the current block using the merge candidate list, deriving a motion vector difference of the current block, and deriving a motion vector of the current block using the motion vector predictor and the motion vector difference. Only some of candidates in the merge candidate list are used to derive the motion vector predictor.
    Type: Application
    Filed: April 19, 2023
    Publication date: September 21, 2023
    Applicants: Electronics and Telecommunications Research Institute, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ha Hyun LEE, Jung Won KANG, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Hae Chul CHOI, Dae Hyeok GWON, Jae Ryun CHOI
  • Patent number: 11765935
    Abstract: A display apparatus including a first thin-film transistor, a second thin-film transistor and a third thin-film transistor is provided. The first thin-film transistor includes a first active layer composed of a polysilicon material, a first gate electrode overlapping the first active layer such that a first gate insulating layer is interposed therebetween, a first source electrode and a first drain electrode. The first gate electrode includes n layers. The first source electrode and the first drain electrode are connected to the first active layer. The second thin-film transistor includes a second active layer composed of a polysilicon material, a second gate electrode overlapping the second active layer such that a first gate insulating layer is interposed therebetween, a second source electrode and a second drain electrode. The second gate electrode includes n+1 layers. The second source electrode and the second drain electrode are connected to the second active layer.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: September 19, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seong-Pil Cho, Dong-Yup Kim, Kyung-Mo Son, Sang-Soon Noh, Jun-Seuk Lee, Yong-Bin Kang, Kye-Chul Choi, Sung-Ho Moon, Sang-Gul Lee, Byeong-Keun Kim, Kyoung-Soo Lee, Hyun-Gyo Jeong, Jin-Kyu Roh, Jung-Doo Jin, Ki-Hyun Kwon, Hee-Jin Jung, Jang-Dae Kim, Won-Ho Son, Chan-Ho Kim
  • Patent number: 11763179
    Abstract: An apparatus and method for abnormal situation detection are disclosed. An abnormal situation detection apparatus can map first sensor data among sensor data transmitted from a plurality of sensors into a vector value, convert it into first situation information in the form of an image pattern, and generate a learning model using the first situation information and an abnormal situation reference range. In addition, the abnormal situation detection apparatus can convert second sensor data among sensor data transmitted from a plurality of sensors into a form that can be input to the learning model, and determine whether an abnormal situation occurs by applying the converted second data to the learning model.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: September 19, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Myung Eun Kim, Seonghyun Kim, Hyunseok Kim, Young Sung Son, Jongkwon Son, Soonyong Song, Donghun Lee, Ingook Jang, Jin Chul Choi
  • Patent number: 11758251
    Abstract: An embodiment of the present invention relates to a camera module comprising: a housing comprising a through hole; a lens module disposed in the through hole; a connector penetrating the housing and extending to an outside from an inside of the housing; a first substrate unit located inside the housing and having an image sensor mounted thereon; a second substrate unit disposed inside the housing and connected to the connector; and a flexible substrate for electrically connecting the first substrate and the second substrate unit, wherein the flexible substrate is coupled to a lower surface of the first substrate unit and a side surface of the second substrate.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: September 12, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jae Wook Ahn, Sun Min Hwang, Je Kyung Park, Kyung Mok Yoon, Chul Ho Lee, Jong Chul Choi
  • Patent number: 11746280
    Abstract: A system and method for generating base water and precipitate, including combining produced water with seawater to precipitate barium sulfate from barium in the produced water and from sulfate in the seawater, and separating the precipitate to give the base water and the precipitate. The base water may have less than a specified amount of sulfate and be utilized for hydraulic fracturing fluid. The precipitate may give a weighting agent for drilling.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: September 5, 2023
    Assignee: Saudi Arabian Oil Company
    Inventors: Fahd Ibrahim AlGhunaimi, Young Chul Choi, Regis Didier Alain Vilagines, Tao Chen, Nahr M. Abulhamayel, Sultan S. AlOtaibi
  • Publication number: 20230276058
    Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
    Type: Application
    Filed: May 3, 2023
    Publication date: August 31, 2023
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
  • Publication number: 20230273694
    Abstract: A display device includes a panel part including a bending area, a digitizer disposed under the panel part, a first magnetic member disposed under the digitizer, and a second magnetic member disposed under the first magnetic member. The first magnetic member includes a first portion and a second portion, which are spaced apart from each other by a dividing area at least partially overlapping the bending area. The second magnetic member at least partially overlaps the dividing area.
    Type: Application
    Filed: May 5, 2023
    Publication date: August 31, 2023
    Inventors: JAIKU SHIN, SOJEONG LA, SUNG CHUL CHOI
  • Patent number: 11744107
    Abstract: An electronic device may include a window, a display panel disposed below the window, a supporting member disposed below the display panel, and a light-blocking layer disposed on the supporting member. The light-blocking layer may include a light-blocking material, and the light-blocking layer may be directly disposed on the supporting member or may be directly attached to the supporting member by a light-blocking adhesive layer. Thus, the electronic device has an improved impact resistance property and may prevent reflection of an external light.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Yong Sim, Sung Chul Choi
  • Patent number: 11743452
    Abstract: An image encoding/decoding method is disclosed. Present invention of the method of decoding an image comprises determining a prediction mode for a current block and performing prediction on the current block on the basis of the determined prediction mode.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: August 29, 2023
    Assignees: Electronics and Telecommunications Research Institute, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ha Hyun Lee, Jung Won Kang, Sung Chang Lim, Jin Ho Lee, Hui Yong Kim, Hae Chul Choi, Aram Back, Dae Hyeok Gwon