Patents by Inventor Dong-Ho Cho

Dong-Ho 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: 20240135587
    Abstract: A method of learning a parameter of a sensor filter and an apparatus for performing the method are provided. The learning method may include performing a simulation on a target image for each spectrum of a sensor filter, obtaining an output value by inputting the simulated image to a vision model for a vision task, and learning a parameter of the sensor filter based on a loss between a label of the vision model and the output value of the vision model.
    Type: Application
    Filed: April 13, 2023
    Publication date: April 25, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Kwang CHO, Geonwoo Kim, Yang Ho Cho, Dong Kyung Nam
  • Publication number: 20240137661
    Abstract: An image sensor includes a color filter array including a first color filter including a first number of blue pass filtering elements, the first number of red pass filtering elements, and green pass filtering elements in a first pattern, wherein a number of the green pass filtering elements in the first pattern is twice the first number, and a second color filter including a second number of blue pass filtering elements, the second number of red pass filtering elements, and green pass filtering elements in a second pattern, wherein a number of green pass filtering elements in the second pattern is twice the second number, and the second number is greater than the first number. The second color filter may surround an area of the first color filter.
    Type: Application
    Filed: March 13, 2023
    Publication date: April 25, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang Ho Cho, Kiwoo Lee, Dong Kyung Nam
  • Publication number: 20240137511
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin-Ho LEE, Jung-Won KANG, Hyunsuk KO, Sung-Chang LIM, Dong-San JUN, Ha-Hyun LEE, Seung-Hyun CHO, Hui-Yong KIM, Hae-Chul CHOI, Dae-Hyeok GWON, Jae-Gon KIM, A-Ram BACK
  • Publication number: 20240128797
    Abstract: Disclosed are a primary coil unit having four coils independently controllable and a pickup coil unit having four coils also independently controllable. The proposed power transfer system and the proposed power pickup system can satisfy standard compatibility and improve the efficiency of wireless power transmission. The power transfer device is compatible with various types of conventional power pickup systems and capable of expanding compatibility with a new power pickup system to be developed in future by changing the power transfer magnetic flux pattern. The power pickup device is compatible with various types of conventional power transfer systems and capable of expanding compatibility with a power transfer system to be developed in future. The system including both the power transfer device and the power pickup device is more robust against a deviation.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Dong Ho CHO, Bo Yune SONG, Gu Ho JUNG, Chung Hee LEE, Ja Hyeon LEE, Uoo Yeol YOON
  • Publication number: 20240121385
    Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 11, 2024
    Inventors: Hyun Suk KO, Jin Ho LEE, Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Publication number: 20240111203
    Abstract: An imaging device includes an imaging lens array including a plurality of imaging lenses each with a same focal length, the plurality of imaging lenses being configured to capture a scene; a sensing array comprising a plurality of sensors configured to receive light passing through the plurality of imaging lenses; a processor configured to determine a scene depth plane corresponding to the scene based on a comparison, for each of a plurality of candidate depths, between reference pixel values based on first sensors of the plurality of sensors corresponding to a reference imaging lens of the plurality of imaging lenses and target pixel values that are based on second sensors of the plurality of sensors corresponding to a target imaging lens of the plurality of image lenses; and a lens driver configured to position the imaging lens array to be disposed at a point corresponding to the scene depth plane.
    Type: Application
    Filed: March 14, 2023
    Publication date: April 4, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang Ho CHO, Juyong PARK, Jingu HEO, Dong Kyung NAM
  • Publication number: 20240112440
    Abstract: A method and apparatus for array image processing are provided. The method includes receiving sub images corresponding to different views of an input array image generated through an array lens, generating temporary restored images based on the sub images using a gradient between neighboring pixels of each of the sub images, determining matching information based on a view difference between pixels of the sub images using a neural network model, based on a pixel distance between matching pairs of the pixels of the sub images using the matching information, extracting refinement targets from the matching pairs, refining the matching information by replacing at least some of target pixels included in the refinement targets based on a local search of a region based on pixel locations of the refinement targets, and generating an output image of a single view by merging the temporary restored images based on the refined matching information.
    Type: Application
    Filed: August 22, 2023
    Publication date: April 4, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jingu HEO, Byong Min KANG, Dong Kyung NAM, Yang Ho CHO
  • Publication number: 20240107181
    Abstract: An optimization method includes determining first information related to a difference between the color filter spectrum and the color spectrum or a difference between an image transformed by the color transformation matrix and a ground truth (GT) image in the reset color space, determining second information representing smoothness of the color filter spectrum, third information representing a transmittance of the color filter spectrum, calculating a cost value based on the first information, the second information, and the third information, compare the calculated cost value and a threshold, and updating one of the filter spectrum information and the color transformation matrix in response to the calculated cost value being equal to or greater than the threshold.
    Type: Application
    Filed: March 31, 2023
    Publication date: March 28, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geonwoo Kim, Sung Kwang Cho, Yang Ho Cho, Dong Kyung Nam
  • Publication number: 20240098311
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. An image encoding method according to the present invention may comprise generating a transform block by performing at least one of transform and quantization; grouping at least one coefficient included in the transform block into at least one coefficient group (CG); scanning at least one coefficient included in the coefficient group; and encoding the at least one coefficient.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Jin Ho LEE, Dong San JUN, Ha Hyun LEE, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI, Yung Lyul LEE, Jun Woo CHOI
  • Patent number: 11936853
    Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: March 19, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Won Kang, Sung Chang Lim, Hyun Suk Ko, Ha Hyun Lee, Jin Ho Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20240073416
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, Universily-lndustry Cooperation Group of Kyung Hee University
    Inventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
  • Patent number: 11917148
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: February 27, 2024
    Assignees: Electronics And Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Jin-Ho Lee, Jung-Won Kang, Hyunsuk Ko, Sung-Chang Lim, Dong-San Jun, Ha-Hyun Lee, Seung-Hyun Cho, Hui-Yong Kim, Hae-Chul Choi, Dae-Hyeok Gwon, Jae-Gon Kim, A-Ram Back
  • Patent number: 11912924
    Abstract: The present invention provides a composition for antifreezing including a gold (Au) nanostructure in which at least a portion thereof is concave, thereby it is possible to increase a survival rate of cells due to having excellent effect of inhibiting ice recrystallization when cryopreservation of the cells, and maintain a texture of food even when using in the freezing of food.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: February 27, 2024
    Assignee: Korea University Research and Business Foundation
    Inventors: Dong June Ahn, Sang Yup Lee, Yong Ho Cho
  • Publication number: 20230322100
    Abstract: A Distributed control method and a distributed communication system for wireless charging of an electric vehicle in moving are provided. For electric vehicle moving on roads in which segmented power supply lines are buried, wireless charging is provided by controlling the switching of power supply segments in real time using a mobile communication system. A distributed communication system controls such process. Since the switching of the power supply segment is distributed and controlled in real time by using a mobile communication system, continuous and stable wireless charging can be achieved without interruption of charging for an electric vehicle in moving.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 12, 2023
    Inventors: Uoo Yeol Yoon, Dong Ho Cho
  • Publication number: 20230299616
    Abstract: A wireless power transmission device can include a plurality of transmission coil units, in which each of the plurality of transmission coil units includes a plurality of antenna coils arranged on different three-dimensional planes, and the plurality of antenna coils are configured to generate a magnetic field passing through at least one or more of the different three-dimensional planes to transfer transmission power to a wireless power reception device.
    Type: Application
    Filed: August 10, 2020
    Publication date: September 21, 2023
    Applicants: LG ELECTRONICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungkeun PARK, Gu Ho JUNG, Chung Hee LEE, Ju Yong LEE, Dong Ho CHO, Dang-Oh KIM
  • Patent number: 11477714
    Abstract: Disclosed is a method of supporting wireless Internet mobility including receiving, by a mobility support server, at least one service condition selected from a service condition group consisting of mobility support target information, network information, service quality information, ubiquitous thing information, communication mode information, and access node terminal information to provide an Internet service to a mobility support target, registering, by the mobility support server, support information for the mobility support target according to the at least one service condition, providing, by the mobility support server, an Internet service for the mobility support target on the basis of the at least one service condition, and supporting, by the mobility support server, mobility for the mobility support target on the basis of the at least one service condition.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: October 18, 2022
    Assignee: Korea Advanced Institute of Science and Technology
    Inventor: Dong Ho Cho
  • Publication number: 20220281329
    Abstract: A power control of a wireless charging inverter is provided. Communication is performed between a driving vehicle and an inverter used for wireless charging of a vehicle. Using the location information of the driving vehicle, the time for the driving vehicle to enter the power supply line and the expected time to leave the power supply line are predicted. The power of the inverter is controlled by using the predicted enter and exit time information of the driving vehicle.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Dong-Ho CHO, Yong-Joon Song, Yu-Jin Sim, Hyo-Min Kim, Je-Woo Kim, Kyung-Hun Lee, Gu-Ho Jung, Bo-Yune Song, Uoo-Yeol Yoon
  • Patent number: 11296405
    Abstract: A lens antenna apparatus includes a plurality of antenna units and a lens structure configured to change a phase of an electromagnetic wave, emitted by at least one antenna unit among the plurality of antenna units. The lens structure changes the phase such that the overall outputs from the plurality of antenna units have different radiation patterns.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 5, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong-Ho Cho, Yun-Sik Kim, Lakju Sung, Sangmi Noh
  • Publication number: 20220060958
    Abstract: Disclosed is a method of supporting wireless Internet mobility including receiving, by a mobility support server, at least one service condition selected from a service condition group consisting of mobility support target information, network information, service quality information, ubiquitous thing information, communication mode information, and access node terminal information to provide an Internet service to a mobility support target, registering, by the mobility support server, support information for the mobility support target according to the at least one service condition, providing, by the mobility support server, an Internet service for the mobility support target on the basis of the at least one service condition, and supporting, by the mobility support server, mobility for the mobility support target on the basis of the at least one service condition.
    Type: Application
    Filed: July 19, 2021
    Publication date: February 24, 2022
    Applicant: Korea Advanced Institute of Science and Technology
    Inventor: Dong Ho CHO
  • Publication number: 20220024329
    Abstract: A wireless charging power supply system during operation of electric vehicles and industrial equipment while operating is described. The withstand voltage problem on the power supply line was solved by the capacitor provided in the inverter, and the power supply line and common line arrangement. This makes it possible to extend the wireless power supply line and the economical problem of the wireless charging system is greatly improved. In the prior art, compatibility was maintained with various wireless charging pick-up pads installed in the vehicle by using a plurality of inverters. In this system, compatibility is satisfied at a lower cost by utilizing the relay present in the inverter. The EMI of the power supply line is reduced by maximizing the magnetic field cancellation effect by using the structure of the common line and the shielding tube.
    Type: Application
    Filed: August 2, 2021
    Publication date: January 27, 2022
    Inventors: Dong-Ho CHO, Bo-Yune SONG, Kyo-Il LEE, Seong-Joo KANG, Ye-Chan JEONG, Dong-Kwan SEO