Patents by Inventor Dong-Gyu Lee

Dong-Gyu Lee 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: 10499064
    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: Grant
    Filed: October 16, 2017
    Date of Patent: December 3, 2019
    Assignees: 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: 20190364294
    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: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Applicants: 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
  • Patent number: 10492345
    Abstract: A display apparatus and a method for dissipating heat are provided. The display apparatus may include a housing including an inlet and an outlet; a display panel disposed in the housing; a first cooling flow path, through which a first flow of air flows, the first cooling flow path connecting the inlet to the outlet; a second cooling flow path formed in the housing to allow a second flow of air to flow around the display panel to exchange heat with the display panel; and a heat exchange device disposed in the housing. The heat exchange device may be configured to allow the second flow of air to exchange heat with the first flow of air, and supply outside air to the second cooling flow path or discharge the second flow of air in the second cooling flow path to an outside of the display apparatus.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ki Kim, Sru Kim, Dong Gyu Lee, Hyun Jun Jung, Jong Pil Seo, Sung Su Lee
  • Patent number: 10485101
    Abstract: A flexible display device includes a flexible display panel, a flexible printed circuit board extending from the display panel, an integrated circuit chip that is mounted on at least one surface of the flexible printed circuit board and is configured to drive the display panel, and a protection member attached to a rear surface of the display panel. When the flexible printed circuit board is flexed to be partially positioned on the rear surface of the display panel, the protection member is positioned between the display panel and the integrated circuit chip. The flexible display device prevents the integrated circuit chip stacked with the display panel from making direct contact with the display panel using the protection member. Thus, even if the display device is deformed into, for example, a flexed or rolled state, it is possible to prevent the display panel from being damaged.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: November 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Yong Eom, Dong-Sub Kim, Dong-Hui Kim, Mi-Sun Lee, Joon-Gyu Lee
  • Patent number: 10477247
    Abstract: The present invention provides a method and apparatus for encoding/decoding an image and for adjusting a reconstructed pixel by scaling an offset of an in-loop filter having a scaled offset value. The method includes: obtaining information of a scale default value of a current block from a bitstream; obtaining offset parameter merge information of the current block from the bitstream; obtaining the offset parameter of the current block on the basis of the offset parameter merge information; determining whether a scale residual value of the current block is obtained from the bitstream on the basis of the offset parameter merge information; obtaining a scale value on the basis of the scale default value and the scale residual value; scaling an offset on the basis of the offset parameter and the scale value; and adjusting a pixel value of the current block on the basis of the scaled offset.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: November 12, 2019
    Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Dong San Jun, Hui Yong Kim, Dong Gyu Sim, Seoung Jun Oh, Jin Soo Choi, Seoung Hwi Kim, Sea Nae Park, Yong Jo Ahn, Dong Kyu Lee
  • Patent number: 10468673
    Abstract: Provided are a positive active material for a lithium secondary battery, a method of preparing the positive active material, and a lithium ion secondary battery including the positive active material, the positive active material including a lithium-containing compound represented by the formula of Li2?xM?O3?y (wherein M? is at least one element selected from Mg, Al, Ca, Ti, V, Cr, Fe, Cu, Zn, Ga, Sr, Y, Zr, Nb, Mo, Ru, and F; 0?x?1; and 0?y?3) on a surface or inside of a lithium metal oxide represented by the formula of Li1?xNiyM1?yO2?z (wherein M is at least one element selected from Co and Mn; 0?x?0.05; 0.6?y?1; and 0?z?0.05).
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 5, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Yoon Kim, Dong Gyu Chang, Jong Min Kim, Mi Sun Lee, Young Joo Chae
  • Patent number: 10469840
    Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 5, 2019
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION, KOREA-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung-Chang Lim, Ha Hyun Lee, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Hae Chul Choi, Jong Ho Kim, Jin Ho Lee, Jin Soo Choi, Jin Woo Hong, Dong Gyu Sim, Seoung Jun Oh, Gwang Hoon Park, Mun Churl Kim, Neung Joo Hwang, Sea Nae Park
  • Patent number: 10457694
    Abstract: A compound may be represented by Chemical Formula 1, an organic photoelectronic device may include a first electrode and a second electrode facing each other with an active layer that includes the compound represented by Chemical Formula 1 between the first electrode and the second electrode, and an image sensor may include the organic photoelectronic device.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 29, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moon Gyu Han, Seon-Jeong Lim, Takkyun Ro, Kwang Hee Lee, Dong-Seok Leem, Yong Wan Jin, Kyung Bae Park, Sung Young Yun, Gae Hwang Lee, Chul Joon Heo
  • Patent number: 10430091
    Abstract: An apparatus and method for storing security information are provided. The apparatus is generally an electronic device that includes a memory configured to include a secured region to store security information and a processor configured to electrically connect with the memory. The processor is further configured to execute an application program configured to store the security information in a first secured region, to receive a request to store the security information from the application program, and to store the security information in a second secured region different from the first secured region in response to the request.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: October 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Suk Seo, Sung Whan Moon, Chang Wook Lee, Sung Oh Hwang, Singh Bhupinder, Chongyang Xie, Geng Chen, Muralidhar Kattimani, Naman Patel, Sambit Kumar Shukla, Sia Jeffry Saputra, Victor Havin, Sung Gyu Kim, Min Woo Park, Jae Hoon Ryu, Seung Hoon Lee, Dong Ho Jang
  • Patent number: 10432923
    Abstract: A unit light source module configured as a 3D display system includes a light emitting unit including a plurality of point light sources corresponding to a number of viewpoints and a light collecting unit disposed a predetermined distance apart from the light emitting unit and collecting and outputting the light source outputted from the plurality of point light sources.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: October 1, 2019
    Assignee: KOREA PHOTONICS TECHNOLOGY INSTITUTE
    Inventors: Kwang Hoon Lee, Dong Kil Lee, Yang Gyu Kim
  • Publication number: 20190297331
    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: June 12, 2019
    Publication date: September 26, 2019
    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: 10425988
    Abstract: Disclosed are a network coding method and apparatus for reliable communication in a LoRa communication system. The network coding apparatus may include a network server connected to an end node over a network to receive a packet transmitted by the end node in a LoRa communication system, a stationary gateway positioned between the network server and the end node to deliver the packet, transmitted by the end node, to the network server, and a temporary gateway positioned between the stationary gateway and the end node to deliver the packet, transmitted by the end node, to the stationary gateway.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 24, 2019
    Assignee: Pusan National University Industry—University Cooperation Foundation
    Inventors: Jong-Deok Kim, Seung-gyu Byeon, JunHwan Huh, Jae-Min Lee, Dong-Hyun Kim
  • Publication number: 20190276018
    Abstract: Disclosed herein is a control apparatus and method for improving fuel efficiency in a CACC system, which can improve fuel efficiency through control of a vehicle speed so that a vehicle travels using an optimized cost in consideration of a target vehicle speed, current vehicle speed, minimum driving speed set in the vehicle, and a deceleration distance if the vehicle that uses the CACC system senses a forward vehicle and enters into a CACC active mode. The control method for improving fuel efficiency in a CACC system includes setting a target speed profile based on a target speed of the subject vehicle and an expected driving path, determining whether a target vehicle to be followed by the subject vehicle exists, and controlling the driving speed of the subject vehicle according to the set target speed profile depending on whether or not the target vehicle exists.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Inventors: Yoon Soo KIM, Dong Gyu NOH, In Yong JUNG, Su Lyun JUNG, Seung Wook PARK, Jong Rok PARK, Kyung Joo BANG, Cho Rong RYU, Min Byeong LEE, Hahk Rel NOH, Dae Sung HWANG
  • Publication number: 20190281118
    Abstract: Provided is an adaptive IoT service system employing a removable hardware module. The system includes a peripheral device control module, a management server, an application program configuration manager, and a user terminal. The peripheral device control module is configured such that a control board thereof for controlling a corresponding one of IoT devices is mountable to and removable from a mainboard thereof. The management server relays real-time data transmitted from IoT devices, cumulative data, and type information to the user terminal, and relays and manages the data and information. The application configuration manager automatically constructs a user interface of the user terminal on the basis of the data managed by the management server. The system constructs a user interface in real time and automatically associates the IoT device with the application program in the user terminal.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 12, 2019
    Inventors: Min Gyu KIM, Dong Chan LEE
  • Publication number: 20190280210
    Abstract: An organic light emitting diode includes: a first electrode; a second electrode facing the first electrode; a light emission layer between the first electrode and the second electrode; an electron injection layer between the second electrode and the light emission layer; and a buffer layer between the electron injection layer and the second electrode, where the electron injection layer includes a dipolar material and a first metal, and the buffer layer includes a metal having a work function of 4.0 eV or less.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Inventors: Seok Gyu YOON, Dong Chan KIM, Eung Do KIM, Bo Ra JUNG, Kyu Hwan HWANG, Sung Chul KIM, Won-Jong KIM, Young-Woo SONG, Jong Hyuk LEE
  • Patent number: 10410436
    Abstract: An apparatus for verifying a vehicle in an inter-vehicular communication environment includes: a communication unit configured to receive a basic safety message and a verification message from a remote vehicle that is allowed to engage in inter-vehicular communication; and a controller configured to determine that the remote vehicle is reliable when the communication unit receives the verification message from the remote vehicle at least a predefined number of times over a predefined period of time, and to generate permission to utilize the basic safety message received from the remote vehicle when the controller determines that the remote vehicle is reliable.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: September 10, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea University Research and Business Foundation
    Inventors: Dong Gyu Noh, Su Lyun Sung, Dae Sung Hwang, Jong Rok Park, Hahk Rel Noh, Cho Rong Ryu, Tae Jun Lee, Hyo Gon Kim, Yong Tae Park, In Seon An, Tae Ho Kim
  • Publication number: 20190266338
    Abstract: An electronic device is disclosed. The electronic device comprises a storage unit and a control unit. The storage unit stores a shared file shared by a plurality of virtual devices. If the control unit receives a request to change the shared file from a first virtual device from among the plurality of virtual devices, the control unit copies the shared file to generate a replacement file, and controls a second virtual device sought to share the shared file so as to refer to the replacement file. As such, the shared file is effectively protected, and the security of the electronic device is improved.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 29, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-hwa JEONG, Sung-gyu LEE, Wang-seok LEE, Hyun-cheol PARK
  • Patent number: 10371534
    Abstract: Provided are an apparatus and method for sharing and learning driving environment data to improve the decision intelligence of an autonomous vehicle. The apparatus for sharing and learning driving environment data to improve the decision intelligence of an autonomous vehicle includes a sensing section which senses surrounding vehicles traveling within a preset distance from the autonomous vehicle, a communicator which transmits and receives data between the autonomous vehicle and another vehicle or a cloud server, a storage which stores precise lane-level map data, and a learning section which generates mapping data centered on the autonomous vehicle by mapping driving environment data of a sensing result of the sensing section to the precise map data, transmits the mapping data to the other vehicle or the cloud server through the communicator, and performs learning for autonomous driving using the mapping data and data received from the other vehicle or the cloud server.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 6, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyoung Wook Min, Jeong Dan Choi, Jun Gyu Kang, Sang Heon Park, Kyung Bok Sung, Joo Chan Sohn, Dong Jin Lee, Yong Woo Jo, Seung Jun Han
  • Patent number: 10363395
    Abstract: The present invention relates to a direction-controllable drug injection catheter. According to the present invention, provided is the catheter extending along a central axis “A” including a drug injection part in which a drug injection channel has been formed; a channel opening and closing means which opens and closes the drug injection channel; and a steering structure which is rotationally asymmetric with respect to the central axis “A” and varies according to a pressure change of the drug injection channel for the purpose of steering.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: July 30, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Doo Yong Lee, Hye Hyun Han, Yun Jin Gu, Seung Gyu Kang, Myeong Jin Kim, Cheong Jun Kim, Seong Pil Byeon, Young Gi Jung, Su Bon Kim, Hyun Seok Lee, Dong Myoung Lee, Su Hwan Park, Ji Hye Hwang
  • Patent number: 10354165
    Abstract: An apparatus for detecting an afterimage candidate region includes: a comparison unit which compares gradation data of an n-th frame with integrated gradation data of an (n?1)-th frame and generates integrated gradation data of the n-th frame, where n is a natural number; a memory which provides the integrated gradation data of the (n?1)-th frame to the comparison unit and stores the integrated gradation data of the n-th frame; and an afterimage candidate region detection unit which detects an afterimage candidate region based on the integrated gradation data of the n-th frame, where each of the integrated gradation data of the n-th frame and the integrated gradation data of the (n?1)-th frame comprises a comparison region and a gradation region.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Jun Jang, Nam Gon Choi, Joon Chul Goh, Gi Geun Kim, Geun Jeong Park, Cheol Woo Park, Yun Ki Baek, Jeong Hun So, Dong Gyu Lee