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: 20210218973
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 15, 2021
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong University
    Inventors: Se-Yoon JEONG, Hae-Chul CHOI, Jeong-Il SEO, Seung-Kwon BEACK, In-Seon JANG, Jae-Gon KIM, Kyung-Ae MOON, Dae-Young JANG, Jin-Woo HONG, Jin-Woong KIM, Yung-Lyul LEE, Dong-Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Dae-Yeon KIM, Dong-Kyun KIM
  • Publication number: 20210218972
    Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 15, 2021
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong University
    Inventors: Se-Yoon JEONG, Hae-Chul CHOI, Jeong-Il SEO, Seung-Kwon BEACK, In-Seon JANG, Jae-Gon KIM, Kyung-Ae MOON, Dae-Young JANG, Jin-Woo HONG, Jin-Woong KIM, Yung-Lyul LEE, Dong-Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Dae-Yeon KIM, Dong-Kyun KIM
  • Patent number: 11064336
    Abstract: A method of transmitting contents in a portable terminal is provided. The method includes allowing a portable terminal of a transmitter to be connected to a portable terminal of a receiver by a control communication, allowing the portable terminal of the transmitter to select a type of the data transmission communication with the portable terminal of the receiver through the control communication, allowing the portable terminal of the transmitter to transmit setting data corresponding to the selected type of data transmission communication to the portable terminal of the receiver through the control communication, and allowing the portable terminal of the transmitter to be connected to the portable terminal of the receiver by the control communication and to transmit the content which are requested to be transmitted, to the portable terminal of the receiver.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: July 13, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyuk Kang, Gi-Beom Kim, Hyeong-Seok Kim, Hyun-Chul Choi, Tae-Hun Lim, Duk-Ki Hong
  • Publication number: 20210211562
    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: Application
    Filed: March 16, 2021
    Publication date: July 8, 2021
    Inventors: Jae Wook AHN, Sun Min HWANG, Je Kyung PARK, Kyung Mok YOON, Chul Ho LEE, Jong Chul CHOI
  • Publication number: 20210203854
    Abstract: An image capturing apparatus is provided. The image capturing apparatus includes a display member, configured to display an image, a camera module, disposed behind the display member, and a touch sensor member, configured to detect a touch input. The camera module is configured to capture a first image in a first position in front of the display member or the touch sensor member, and to capture a second image in a second position in front of the display member or in front of the touch sensor member, the second position being different from the first position. An image capturing position of the camera module is moved such that at least a portion of a non-captured region, covered with the display member or the touch sensor member in one of the first and second images, is not covered in the other of the first and second images.
    Type: Application
    Filed: October 9, 2020
    Publication date: July 1, 2021
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Chul CHOI
  • Patent number: 11047893
    Abstract: According to an embodiment, an electronic device may include a display, a Printed Circuit Board (PCB), a communication module comprising communication circuitry disposed to the PCB, an Electro Magnetic Interference (EMI) detection module comprising EMI detecting circuitry disposed to the PCB, at least one antenna electrically coupled to the communication module and the EMI detection module, and a processor, wherein the processor is configured to: output an image using the display, control a communication configuration of the electronic device with an external electronic device using the communication module, detect an EMI signal using the antenna and the EMI detection module, and perform a designated operation based on at least the detected EMI signal.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Chul Choi, Hyunwoo Kim
  • Publication number: 20210195188
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    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, Hyun Suk KO, Sung Chang LIM, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Hae Chul CHOI, Aram BACK, Jin Soo CHOI, Jae Gon KIM
  • Publication number: 20210185349
    Abstract: Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 17, 2021
    Inventors: Hae-Chul CHOI, Se Yoon JEONG, Sukhee CHO, Hui Yong KIM, Jinho LEE, Hahyun LEE, Sung-Chang LIM, Jongho KIM, Jin Soo CHOI, Jin Woo HONG, Jin Woong KIM
  • Patent number: 11039130
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: June 15, 2021
    Assignees: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Jin Ho Lee, Sung Chang Lim, Jung Won Kang, Hyun Suk Ko, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jae Gon Kim, Do Hyeon Park, Jin Soo Choi, Hae Chul Choi
  • Publication number: 20210175477
    Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
    Type: Application
    Filed: November 23, 2020
    Publication date: June 10, 2021
    Inventors: Young-Nam LIM, Hyun-Chul CHOI, Kwan-Soo KIM, Seok-Hyun KIM, Jae-Hyeon KIM
  • Patent number: 11027835
    Abstract: An unmanned aerial vehicle according to various embodiments includes: a housing; a communication circuit, wherein the communication circuit establishes wireless communication with an external controller; and a plurality of propulsion systems connected to the housing, wherein the propulsion systems include: a motor; a rotation shaft having an axis extending in a first direction, wherein a first end is connected to the motor, and wherein the rotation shaft is rotates in a first direction by the motor; a cap structure fixed to the second end of the rotation shaft, a propeller including: a hub including a through-hole formed in the first direction, such that the rotation shaft rotatably passes through the through-hole, wherein the propeller is detachably connected to the cap structure, such that, when an external force is exerted on the blade, the propeller is released from the cap structure to be freely movable along the axis toward the motor.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 8, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Chul Baek, Wonhee Choi, Sang-In Baek, Min-Woo Yoo, Byoung-Uk Yoon, Min-Sung Lee, Jong-Chul Choi
  • Patent number: 11028106
    Abstract: An object of the present invention is to provide a method capable of producing a tetraalkoxysilane with a high energy efficiency and with a high yield. The present invention provides a method for producing a tetraalkoxysilane, the method including: a first step of reacting an alcohol with a silicon oxide; and a second step of bringing a vaporized component of the reaction mixture obtained in the first step into contact with a molecular sieve.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: June 8, 2021
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Norihisa Fukaya, Seong-Jib Choi, Jun-Chul Choi, Toshio Horikoshi, Sho Kataoka, Thuy Nguyen, Kazuhiko Sato, Minoru Hasegawa, Hiroshi Kumai
  • Publication number: 20210158464
    Abstract: The present invention prevents an error of a blockchain-based smart contract and an error occurring in a process of cooperating with a conventional smart contract and uses a smart contract template, thereby enhancing convenience in writing a smart contract.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 27, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Yun Chul CHOI
  • Publication number: 20210139407
    Abstract: Disclosed is a method for preparing methyl methacrylate (MMA), the method including: (1) separating isobutene containing saturated hydrocarbon (n-butane and iso-butane), via a catalytic distillation process from a stream of C4 hydrocarbons containing butadiene, n-butene, and isobutene; (2) producing methacrolein via a first oxidation reaction of the separated isobutene; (3) producing methacrylic acid via a second oxidation reaction of the produced methacrolein; and (4) esterifying the produced methacrylic acid with methanol. By having a high heat capacity, the amount of nitrogen added is minimized to reduce the size of the reactor and the amount of gas production at a rear end, which has a high economic feasibility due to the effect of reducing investment and investment cost.
    Type: Application
    Filed: October 21, 2020
    Publication date: May 13, 2021
    Inventors: Hyun Chul CHOI, Ho Sik CHANG, Jin Suk LEE
  • Patent number: 10998115
    Abstract: An inductor includes a support member, a plurality of conductor patterns disposed on at least one surface of the support member and supported by the support member, and an insulating structure interposed between conductor patterns adjacent each other among the plurality of conductor patterns, the insulating structure including a first insulating layer and a second insulating layer disposed on the first insulating layer, the second insulating layer covering side and upper surfaces of the conductor patterns, the second insulating layer being continuously formed along the side and upper surfaces of the conductor pattern, depending on external shapes of the side and upper surfaces of the conductor pattern disposed below the second insulating layer.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woon Chul Choi
  • Publication number: 20210125766
    Abstract: A coil electronic component includes a magnetic body that includes a substrate and a coil part. The coil part includes patterned insulating films disposed on a surface of the substrate and a plating layer formed between the patterned insulating films by plating and having a thickness greater than or equal to its width measured parallel to the surface of the substrate. The plating layer may be formed in a single plating operation, and may have a thickness of 200 m or more.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 29, 2021
    Inventors: Woon Chul CHOI, Jung Hyuk JUNG, Woo Jin LEE, Han Wool RYU
  • Publication number: 20210127121
    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: January 5, 2021
    Publication date: April 29, 2021
    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
  • Patent number: 10986731
    Abstract: A display device includes a display module foldable with respect to a bending axis, an adhesive member which is disposed under the display module, a plurality of support members adhered to the adhesive member, and a crack preventing pattern layer adhered to a portion of the adhesive member, which overlaps the bending axis. The crack preventing pattern layer includes a plurality of crack preventing members spaced from each other. Each of the crack preventing members includes a metal or an inorganic material and is in contact with the adhesive member.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaiku Shin, Hansun Ryou, Sung Chul Choi
  • Publication number: 20210111230
    Abstract: A display device including: a sensor device; a display module to display an image and having a first through-hole in which the sensor device is positioned; and a bottom panel cover on one surface of the display module and having a second through-hole in which the sensor device is positioned. The first through-hole has breadth that increases from the one surface of the display module toward another surface of the display module opposite to the one surface of the display module.
    Type: Application
    Filed: April 27, 2020
    Publication date: April 15, 2021
    Inventors: Jai Ku SHIN, Dong Jin PARK, Dong Woo SEO, Sung Chul CHOI
  • Patent number: RE48641
    Abstract: A mobile communication terminal with a radiant-heat function is provided. The mobile communication terminal includes: a display module; a rear cover; an inner support structure positioned between the display module and the rear cover and including a first surface facing the display module and a second surface facing an opposite side to the display module; a first radiant-heat sheet positioned between the first surface of the support structure and the display module; a printed circuit board positioned between the first radiant-heat sheet and the first surface of the support structure; and a second radiant-heat sheet positioned between the second surface of the support structure and the rear cover.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: July 13, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Youn Jang, Kyung-Ha Koo, Kun-Tak Kim, Ki-Cheol Bae, Hyun-Deok Seo, Hyun-Tae Jang, Jong-Chul Choi