Patents Assigned to Electronics and Telecommunications Research Institute
  • Publication number: 20200374703
    Abstract: A method for transmitting a discovery burst according to an exemplary embodiment of the present disclosure may comprise performing first channel-sensing with respect to a shared band to transmit the discovery burst through first window of discovery pattern first duration including the first window to N-th window; in case that the shared band is determined to be not-occupied based on the first channel-sensing, transmitting the discovery burst through the first window of the discovery pattern first duration; performing second channel-sensing with respect to the shared band to transmit the discovery burst through second window of discovery pattern second duration including first window to N-th window; and in case that the shared band is determined to be not-occupied based on the second channel-sensing, transmitting the discovery burst through the second window of the discovery pattern second duration.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Gyung Hyun JO
  • Publication number: 20200372620
    Abstract: The present invention provides a method for image preprocessing, the method including: identifying a plurality of input images to process image registration; selecting at least one transformation method among histogram equalization and gamma transformation in consideration of hue and brightness values of the plurality of input images; processing the histogram equalization on the plurality of input images in response to the histogram equalization method being selected; and processing the gamma transformation on the plurality of input images, in response to the gamma transformation method being selected.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 26, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju CHO, Soon Heung JUNG, Jeong Il SEO
  • Publication number: 20200371200
    Abstract: A radar includes a transmitter that generates a first signal that is a frequency modulated continuous wave (FMCW) signal and radiates the generated first signal to an outside, a receiver that receives a second signal based on the first signal and generates a baseband signal of the second signal, a signal processor that extracts a target frequency signal from the baseband signal, and a signal converter that outputs the target frequency signal that is controlled as a digital signal, and wherein the signal processor includes a high pass filter connected to the receiver, that receives the baseband signal, and attenuates a low frequency signal present in the received baseband signal, based on a first cutoff frequency, an amplifier that amplifies the attenuated baseband signal, and a signal controller that removes a direct current component of the amplified baseband signal, based on a second cutoff frequency.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 26, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kisu KIM, Bon Tae KOO
  • Publication number: 20200372350
    Abstract: Disclosed herein is an image deep learning model training method. The method includes sampling a twin negative comprising a first negative sample and a second negative sample by selecting the first negative sample with a highest similarity out of an anchor sample and a positive sample constituting a matching pair in each class and by selecting the second negative sample with a highest similarity to the first negative sample, and training the samples to minimize a loss of a loss function in each class by utilizing the anchor sample, the positive sample, the first and second negative samples for each class. The first negative sample is selected in a different class from a class comprising the matching pair, and the second negative sample is selected in a different class from classes comprising the matching pair and the first negative sample.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, NFORMATION TECHNOLOGY UNIVERSITY (ITU)
    Inventors: Yong Ju CHO, Jeong Il SEO, Rehan Hafiz, Mohsen Ali, Muhammad Faisal, Aman Irshad
  • Patent number: 10848837
    Abstract: Disclosed is an apparatus and method of providing a high quality 360-degree VR image. A method of decoding a 360-degree VR image according to the present disclosure includes: receiving a bit stream including 360-degree VR image information; decoding information related to a 360-degree VR service from the bitstream; detecting a region of interest based on the information related to the 360-degree VR service; and providing to a user a 360-degree VR image for the region of interest.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 24, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kug Jin Yun, Jun Young Jeong
  • Patent number: 10848074
    Abstract: Provided is a high voltage bridge rectifier. The high voltage bridge rectifier includes a supporter, a substrate on the supporter, a plurality of equivalent diode circuits mounted on the substrate, interconnection lines, and terminals. The substrate may include an insulation layer, element pads disposed on a center of the insulation layer, and terminal pads disposed on an edge of the insulation layer to surround the element pads.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: November 24, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chi Hoon Jun, Sang Choon Ko, Dong Yun Jung, Jong-Moon Park, Hyun-Gyu Jang
  • Patent number: 10848757
    Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: November 24, 2020
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hui Yong Kim, Gwang Hoon Park, Kyung Yong Kim, Sang Min Kim, Sung Chang Lim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Patent number: 10848758
    Abstract: An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 24, 2020
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi, Gwang Hoon Park, Tae Hyun Kim, Dae Young Lee
  • Publication number: 20200367242
    Abstract: Disclosed is a method for transmitting and receiving a downlink channel and a reference signal in a communication system. A method for receiving a downlink signal performed by a terminal comprises the steps of: receiving, from a base station, a control DMRS for a downlink control channel in time-frequency resource region #1; performing demodulation and decoding operations on the downlink control channel in the time-frequency resource region #1 by using channel estimation information #1 on the basis of the control DMRS; and performing demodulation and decoding operations on a downlink data channel by using the channel estimation information #1 in a frequency band A in a time-frequency resource region #2 indicated by scheduling information obtained from the downlink control channel. Therefore, the performance of the communication system can be improved.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 19, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Hyun MOON, Jung Hoon LEE, Jun Hwan LEE, Min Hyun KIM, Ji Hyung KIM, Cheul Soon KIM, Ju Ho PARK
  • Publication number: 20200365986
    Abstract: There are provided a multi-bay antenna apparatus and an operation method thereof. A multi-bay antenna apparatus may include a first section, a first array antenna mounted in the first section to receive a signal in a predetermined frequency band, a second section movably coupled with the first section, and a second array antenna mounted in the second section to receive a signal in a predetermined frequency band.
    Type: Application
    Filed: April 1, 2020
    Publication date: November 19, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ki Cheol TAE, Kanghee KIM, Haeng Sook RO, Gwangmoon PARK, Soo-Ho Sohn, Ho Jin LEE
  • Publication number: 20200366900
    Abstract: An image encoding/decoding method and apparatus for performing template matching-based intra prediction are provided. An image decoding method may comprise deriving a first intra-prediction mode for a current block, generating a first intra-prediction block corresponding to the first intra-prediction mode, deriving a second intra-prediction mode for the current block, generating a second intra-prediction block corresponding to the second intra-prediction mode, and generating a final intra-prediction block by using a weighted sum of the first intra-prediction block and the second intra-prediction block.
    Type: Application
    Filed: November 16, 2018
    Publication date: November 19, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong San JUN, Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Jin Ho LEE, Ha Hyun LEE, Hui Yong KIM
  • Publication number: 20200365732
    Abstract: Provided is a field effect transistor including a semiconductor layer, a gate electrode provided on a channel region in the semiconductor layer, and a channel adjusting member provided adjacent to the channel region on one surface of the semiconductor layer and overlapping the gate electrode on a plane. Here, the channel adjusting member provides a depletion layer in the channel region.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Byounggun CHOI
  • Publication number: 20200366931
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Encoding and decoding of a target block are performed using intra-prediction. The intra-prediction is intra-prediction that uses bidirectional intra-prediction and a remaining mode. In bidirectional intra-prediction, a prediction value for a target pixel in the target block is determined based on reference pixels in two directions of bidirectional intra-prediction. In intra-prediction using a remaining mode, the remaining mode indicates remaining intra-prediction modes other than MPMs present in an MPM list.
    Type: Application
    Filed: November 28, 2018
    Publication date: November 19, 2020
    Applicants: Electronics and Telecommunications Research Institute, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hyunsuk KO, Jung-Won KANG, Sung-Chang LIM, Jin-Ho LEE, Ha-Hyun LEE, Dong-San JUN, Hae-Chul CHOI, Hui-Yong KIM, A-Ram BACK
  • Patent number: 10841598
    Abstract: Disclosed are an image encoding/decoding method and device supporting a plurality of layers. The image decoding method supporting the plurality of layers comprises the steps of; receiving a bitstream comprising the plurality of layers; and decoding the bitstream so as to acquire maximum number information about sublayers with respect to each of the plurality of layers.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Won Kang, Ha Hyun Lee, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Patent number: 10840947
    Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 4/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: November 17, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
  • Patent number: 10841056
    Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.
    Type: Grant
    Filed: March 24, 2019
    Date of Patent: November 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Ee Oh, Min Ho Cheong, Sok Kyu Lee
  • Patent number: 10840946
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: November 17, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Bo-Mi Lim, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10839540
    Abstract: Disclosed herein are an apparatus and a method for generating an intermediate view image of a stereoscopic image. The apparatus may include a feature point detector detecting contours in left and right view images and detecting feature points in the contours, a corresponding point detector detecting corresponding points corresponding to the feature points of the left and right view images, and a composer generating an intermediate view image based on disparity information between the feature points and the corresponding points.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Sang Won Ghyme
  • Patent number: 10839819
    Abstract: Provided is an apparatus and method for encoding/decoding audio based on a block. A method of encoding an audio signal may include dividing each of frame of input signal that constitute an audio signal into a plurality of subframes; transforming the subframes to a frequency domain; determining a two-dimensional (2D) intra block using the subframes transformed to the frequency domain; and encoding the 2D intra block. The 2D intra block may be a block that two-dimensionally displays frequency coefficients of the subframes transformed to the frequency domain using a time and a frequency.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 17, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jongmo Sung, Mi Suk Lee, Dae Young Jang, Jin Soo Choi
  • Patent number: 10835390
    Abstract: The present invention relates to a method for manufacturing a bone graft material using 3D printing of a DLP system. The method includes (1) dispersing a powder material including calcium phosphate-based ceramics in a solvent; (2) recovering the calcium phosphate-based ceramics by removing the solvent from a solution in which the calcium phosphate-based ceramic material is dispersed in Step 1; (3) producing a photocurable resin composition by adding a binder resin including a crosslinking agent and a photoinitiator to the calcium phosphate-based ceramics obtained in Step 2; (4) performing 3D rapid prototyping on a bone graft material molded body from the composition for a bone graft material produced in Step 3 by 3D printing of a DLP system; and (5) debinding and sintering organic materials remaining in the bone graft material molded body subjected to prototyping in Step 4.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 17, 2020
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Korea Textile Machinery Convergence Research Institute
    Inventors: So Young Yang, Yong Il Chung, Kyu Hyung Kim, Min Ji Lee, Soo In Lee, Eun Chang Choi