Patents Assigned to Electronics and Telecommunication Research Institute
  • METHOD OF FOCUSING ELECTROMAGNETIC WAVE WITH ADJUSTABLE DEPTH OF FOCUS AND OPERATION APPARATUS THEREOF
    Publication number: 20230299476
    Abstract: A method of focusing radio waves, which is performed by a processor, may comprise: generating an anatomic numerical model for electromagnetic analysis inside a living body including a focusing target; calculating a current distribution, in which radio waves are focusable at a target depth inside the living body, based on the anatomic numerical model; and extracting a pattern combination of antenna modules in which the calculated current distribution is implementable, wherein the pattern combination is formed by controlling one or more antenna elements configured to radiate radio waves through switches individually coupled to two or more antenna elements.
    Type: Application
    Filed: November 7, 2022
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang Jae LEE, Won Young SONG, Soon Ik JEON
  • ELECTROLYTE COMPOSITION AND LITHIUM BATTERY INCLUDING THE SAME
    Publication number: 20230299349
    Abstract: A lithium battery according to the inventive concept includes: a first electrode structure; a second electrode structure separated from the first electrode structure; and an electrolyte between the first electrode structure and the second electrode structure, wherein the electrolyte includes: a lithium salt; an organic solvent; and an additive, the additive includes a polymer additive, and the polymer additive may be a mixture of at least two or more polymers among a halogen-based polymer, a silicon-based polymer and an acrylic polymer, or a copolymer thereof.
    Type: Application
    Filed: December 19, 2022
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jaecheol CHOI, Kwang Man KIM, Young-Gi LEE, Seok Hun KANG, Ju Young KIM, Dong Ok SHIN, Jimin OH
  • ENCODING METHOD AND ENCODING DEVICE USING COMPLEX SIGNAL AND DECODING METHOD AND DECODING DEVICE USING COMPLEX SIGNAL
    Publication number: 20230298599
    Abstract: An encoding method and an encoding device using a complex signal and a decoding method and a decoding device using a complex signal are provided. The encoding method includes converting a first channel signal and a second channel signal constituting an audio signal corresponding to a stereo signal from a real domain to a complex domain, determining one of a sum operation, a difference operation, and a bypass operation to be performed on the second channel signal converted to the complex domain, determining a complex spatial cue according to the determined operation, converting a residual signal for the second channel signal to a real domain using the complex spatial cue, converting the first channel signal to a real domain, encoding the first channel signal converted to the real domain, and encoding the residual signal for the second channel signal converted to the real domain.
    Type: Application
    Filed: June 12, 2023
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon BEACK, Jongmo SUNG, Tae Jin LEE, Woo-taek LIM, Inseon JANG, Byeongho CHO
  • METHOD AND DEVICE FOR PROVIDING COMPRESSION AND TRANSMISSION OF TRAINING PARAMETERS IN DISTRIBUTED PROCESSING ENVIRONMENT
    Publication number: 20230297833
    Abstract: Disclosed herein are a method and apparatus for compressing learning parameters for training of a deep-learning model and transmitting the compressed parameters in a distributed processing environment. Multiple electronic devices in the distributed processing system perform training of a neural network. By performing training, parameters are updated. The electronic device may share the updated parameter thereof with additional electronic devices. In order to efficiently share the parameter, the residual of the parameter is provided to the additional electronic devices. When the residual of the parameter is provided, the additional electronic devices update the parameter using the residual of the parameter.
    Type: Application
    Filed: April 24, 2023
    Publication date: September 21, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung-Hyun CHO, Youn-Hee KIM, Jin-Wuk SEOK, Joo-Young LEE, Woong LIM, Jong-Ho KIM, Dae-Yeol LEE, Se-Yoon JEONG, Hui-Yong KIM, Jin-Soo CHOI, Je-Won KANG
  • Method and apparatus for transmitting a HARQ codebook based on reference time
    Patent number: 11764908
    Abstract: An operation method of a terminal in a communication system may comprise: receiving one or more data units from a base station; generating a HARQ codebook for at least one dada unit of the one or more data units at a reference time; and transmitting the HARQ codebook to the base station, wherein the reference time is shared by the terminal and the base station.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: September 19, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Cheul Soon Kim, Sung Hyun Moon, Jung Hoon Lee
  • Method and device for encoding/decoding images
    Patent number: 11765356
    Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: September 19, 2023
    Assignees: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hui Yong Kim, Sung Chang Lim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Gwang Hoon Park, Kyung Yong Kim
  • Cell-free massive MIMO transmission method, and apparatus for the same
    Patent number: 11764839
    Abstract: An operation method of a CP may comprise: requesting a status report from each of terminals and receiving the status report; determining switching from basic transmission mode to cell-free massive MIMO transmission mode for at least part of the terminals based on the status reports; instructing the at least part of the terminals and at least one AN to perform cell-free massive MIMO transmission for the at least part of the terminals to configure cell-free massive MIMO transmission mode; determining analog beam(s) and/or digital precoder(s) to be applied by the at least one AN to the at least part of the terminals based on channel qualities between the at least part of the terminals and the at least one AN; and allowing the at least one AN to perform cell-free massive MIMO transmission to the at least part of the terminals using the analog beam(s) and/or digital precoder(s).
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 19, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Min Hyun Kim, Seung Eun Hong
  • Image encoding/decoding method and device, and recording medium in which bitstream is stored
    Patent number: 11765386
    Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: September 19, 2023
    Assignees: Electronics and Telecommunications Research Institute, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Jin Ho Lee, Hui Yong Kim, Yung Lyul Lee, Ji Yeon Jung, Nam Uk Kim, Myung Jun Kim, Yang Woo Kim, Dae Yeon Kim, Jae Gon Kim
  • PIXEL CIRCUIT AND DRIVING METHOD THEREOF AND DISPLAY PANEL HAVING THE SAME
    Publication number: 20230290306
    Abstract: A pixel circuit may comprise: a first transistor having a first terminal connected to a data line and to which a data signal is applied and a gate terminal connected to a scan line and to which a scan signal is applied; a third transistor having a gate terminal connected to a second terminal of the first transistor and a second terminal connected to a light emitting device; a capacitor having a second terminal commonly connected to the second terminal of the first transistor and the gate terminal of the third transistor; and a second transistor having a second terminal commonly connected to a first terminal of the capacitor and a first terminal of the third transistor, a first terminal connected to a first power supply voltage, and a gate terminal connected to an emission line to which an emission signal is applied.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 14, 2023
    Applicants: Electronics and Telecommunications Research Institute, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Chun Won BYUN, Chan Mo KANG, Nam Sung CHO, Byong Deok CHOI, Yong Duck KIM
  • NEURON CIRCUIT WITH SYNAPTIC WEIGHT LEARNING
    Publication number: 20230289582
    Abstract: A neuron circuit including a first internal circuit that receives a plurality of spike input signals, generates a first sum value by summing a plurality of synaptic weights corresponding to the plurality of spike input signals, and outputs a second sum value by adding a membrane potential value to the first sum value, a spike generating circuit that generates a spike output signal, a membrane potential generating circuit that generates the membrane potential value, a second internal circuit that counts a last spike time based on the spike output signal, and an online learning circuit that receives a last input time from the first internal circuit and performs LTP learning based on the last input time or receives the last spike time from the second internal circuit and performs LTD learning based on the last spike time.
    Type: Application
    Filed: December 19, 2022
    Publication date: September 14, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Young Hwan BAE, Jae-Jin LEE, Tae Wook KANG, Sung Eun KIM, Kyung Jin BYUN, Kwang IL OH, In San JEON
  • IMAGE PROCESSING DEVICE GENERATING 3D CULTURAL ASSET DATA AND OPERATION METHOD THEREOF
    Publication number: 20230290059
    Abstract: Disclosed is an image processing device, which includes a plurality of sensors that output two or more different types of sensing data, a processor that synchronizes the sensing data, extracts image processing-related information from the synchronized sensing data, and generates a gigapixel texture and a three-dimensional (3D) mesh based on the image processing-related information, a user interface that visualizes and outputs 3D cultural asset data generated based on the gigapixel texture and the 3D mesh, and a memory that stores the image processing-related information and the 3D cultural asset data. The image processing-related information includes a multi-viewpoint image, a calibration image, and a camera parameter.
    Type: Application
    Filed: October 18, 2022
    Publication date: September 14, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyun Joo KIM, JoongYong CHOI, Hyung-Keun JEE
  • Method and device for encoding/decoding image using geometrically modified picture
    Patent number: 11758128
    Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: September 12, 2023
    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, Dong San Jun, Hui Yong Kim, Gwang Hoon Park, Jin Soo Choi, Tae Hyun Kim, Dae Young Lee, Young Su Heo
  • Method and apparatus for communications using secret key in communication system
    Patent number: 11757855
    Abstract: An operation method of a first communication node in a communication system may comprise estimating a channel state between the first communication node and a second communication node based on a pilot signal received from the second communication node; generating a first channel codebook based on the estimated channel state; transmitting information of the first channel codebook to the second communication node; receiving a response indicating whether the first channel codebook is to be used from the second communication node; when the response is an ACK indicating that the first channel codebook is to be used, generating a first secret key by using the first channel codebook; and transmitting data encrypted using the first secret key to the second communication node.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 12, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong Hyuk Gwak, Hyung Sik Ju
  • Method and apparatus for transform-based image encoding/decoding
    Patent number: 11758136
    Abstract: The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: September 12, 2023
    Assignees: 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, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi, Yung Lyul Lee, Nam Uk Kim, Jun Woo Choi
  • SECURITY CODE
    Publication number: 20230281416
    Abstract: Provided is a security code. The security code including a first region and a second region includes a metal layer, a first dielectric pattern provided on the metal layer in the first region, a polymer pattern provided on the metal layer in the second region, a first metal pattern provided on the dielectric pattern, and a second metal pattern provided on the polymer pattern, wherein the polymer pattern includes a material different from that of the first dielectric pattern, and a thickness of the polymer pattern is different from a thickness of the first dielectric pattern.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 7, 2023
    Applicants: Electronics and Telecommunications Research Institute, Postech Research and Business Development Foundation
    Inventors: Soo-Jung KIM, Junsuk RHO, Sung-Hoon HONG, Byoungsu KO, Doa KIM, Jaehyuck JANG, Chunghwan JUNG
  • APPARATUS FOR MONITORING FLUID
    Publication number: 20230280278
    Abstract: Disclosed is a fluid monitoring apparatus. The fluid monitoring apparatus includes a chamber configured to store a fluid, a resonator in the chamber, a light source disposed on the chamber and configured to provide pump light to the resonator, a detector configured to detect laser light generated in the resonator, and a control unit connected to the detector and the light source and configured to identify a physical quantity in the fluid by detecting a resonance wavelength of the laser light using a detection signal of the laser light.
    Type: Application
    Filed: December 28, 2022
    Publication date: September 7, 2023
    Applicants: Electronics and Telecommunications Research Institute, KOREA UNIVERSITY Research and Business Foundation
    Inventors: Jin Tae KIM, Myung-Ki KIM, Haerin JEONG
  • LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR OPERATING THE SAME
    Publication number: 20230280620
    Abstract: Provided is a liquid crystal display device and a method for operating the liquid crystal display device. In the liquid crystal display device including a plurality of pixels, one pixel of the plurality of pixels includes a first sub pixel and a second sub pixel, which are adjacent to each other. The one pixel includes a first substrate, a first electrode provided on the first substrate, metamaterial layers provided on the first electrode, wherein the metamaterial layers include a first metamaterial layer within the first sub pixel and a second metamaterial layer within the second sub pixel, a liquid crystal layer provided on the first and second metamaterial layers, a second electrode provided on the liquid crystal layer, and a second substrate provided on the second electrode. The first and second metamaterial layers include metamaterials having properties different from each other, respectively.
    Type: Application
    Filed: December 19, 2022
    Publication date: September 7, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Hae KIM, Chi-Sun HWANG
  • METHOD FOR SIGNALING CONTROL INFORMATION FOR COORDINATED MUL Tl POINT TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20230284256
    Abstract: Disclosed is a method for signaling control information for coordinated multipoint (CoMP) transmission in a wireless communication system. The control information signaling method for CoMP transmission is performed by a base station and comprises providing, through RRC signaling, a terminal with setup information on each CSI-RS resource of a CoMP measurement group which is set in the terminal; and selectively providing, through DCI, the terminal with control information which indicates mapping of the PDSCH resource element corresponding to terminal and at least either pseudo-same positionality information of CSI-RS or pseudo-same positionality information of DM-RS. Thus, control information signaling for coordinated multipoint transmission can be efficiently performed.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Young Jo KO, Jae Young AHN
  • FRAMEWORK SYSTEM FOR IMPROVING PERFORMANCE OF KNOWLEDGE GRAPH EMBEDDING MODEL AND METHOD FOR LEARNING THEREOF
    Publication number: 20230281477
    Abstract: A learning method for improving performance of a knowledge graph embedding model is provided. The method includes: performing learning of a first knowledge graph embedding model based on input knowledge data; extracting all embedding vectors from the learned first knowledge graph embedding model, and extracting prior knowledge based on the extracted embedding vectors; and performing learning of a second knowledge graph embedding model through at least one of initialization of the embedding vectors and transform of the input knowledge data based on the extracted prior knowledge.
    Type: Application
    Filed: January 31, 2023
    Publication date: September 7, 2023
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chun-Hee LEE, Dong-oh KANG, Hwa Jeon SONG
  • Generating downlink frame and searching for cell
    Patent number: RE49665
    Abstract: The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: September 19, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kap Seok Chang, Il Gyu Kim, Hyeong Geun Park, Young Jo Ko, Hyo Seok Yi, Moon Sik Lee, Young Hoon Kim, Seung Chan Bang