Patents Assigned to Electronics and Telecommunications Research Institute
  • Patent number: 11228778
    Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: January 18, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hui Yong Kim, Jin Ho Lee, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
  • Patent number: 11226451
    Abstract: A 3D optical switch for transferring an optical signal between a plurality of layers of an optical integrated circuit, which comprises: a first optical coupler for distributing the optical signal input to a first optical waveguide deployed in a first layer among the plurality of layers to a second optical waveguide deployed in a second layer different from the first layer; a phase shifter for changing a phase of a first optical signal in the first optical waveguide passing through the first optical coupler and a phase of a second optical signal in the second optical waveguide distributed by the first optical coupler; and a second optical coupler for combining the first optical signal of which the phase is changed and the second optical signal of which the phase is changed is provided.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: January 18, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jaegyu Park, Gyung Ock Kim, Jiho Joo
  • Patent number: 11228785
    Abstract: The image decoding method according to the present invention comprises the steps of: determining the availability of a block adjacent to a current block; configuring a merge candidate list for the current block on the basis of the result of the determined availability; and performing motion compensation for the current block on the basis of the merge candidate list, wherein the step of determining availability comprises the steps of inducing block availability information on the adjacent block and inducing the availability of motion information on the adjacent block, and the step of determining the availability of the adjacent block is such that when there is more than one adjacent block, the availability of adjacent blocks can be determined in accordance with a predetermined order restriction.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: January 18, 2022
    Assignees: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hui Yong Kim, Sung Chang Lim, Jin Soo Choi, Jin woong Kim, Gwang Hoon Park, Kyung Yong Kim
  • Publication number: 20220012589
    Abstract: A data learning device in a deep learning network characterized by a high image resolution and a thin channel at an input stage and an output stage and a low image resolution and a thick channel in an intermediate deep layer includes a feature information extraction unit configured to extract global feature information considering an association between all elements of data when generating an initial estimate in the deep layer; a direct channel-to-image conversion unit configured to generate expanded data having the same resolution as a final output from the generated initial estimate of the global feature information or intermediate outputs sequentially generated in subsequent layers; and a comparison and learning unit configured to calculate a difference between the expanded data generated by the direct channel-to-image conversion unit and a prepared ground truth value and update network parameters such that the difference is decreased.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Jae YU, Jong Gook KO, Won Young YOO, Keun Dong LEE, Su Woong LEE, Seung Jae LEE, Yong Sik LEE, Da Un JUNG
  • Publication number: 20220014731
    Abstract: Disclosed are region-based image encoding/decoding method and apparatus. The method of decoding an image includes: determining a projection format of a 360-degree video image; determining, on the basis of the determined projection format, a spatial correlation degree between a current block and a neighboring block; and determining, on the basis of the determined spatial correlation degree, a candidate block for predicting the current block.
    Type: Application
    Filed: November 15, 2019
    Publication date: January 13, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gun BANG, Hui Yong KIM
  • Publication number: 20220007614
    Abstract: Provided are a smart barn system and smart barn control method for detecting an abnormal sign of livestock and a tag attachable to livestock. The smart barn system includes a plurality of tags attached to ears of livestock bred in a pigsty and configured to measure temperatures of the livestock and transmit the measured temperature information of the livestock, a plurality of antennas configured to transmit and receive wireless signals to and from the tags, a reader configured to collect tag information of the livestock, which approaches an apparatus for providing feed and water, through any one of the plurality of antennas and measure an access frequency of the tag, which is collected through each of the antennas, through the collected tag information of the livestock, and a plurality of wireless power switching modules provided between the antennas and the reader and connected in a cascade.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Jae Young JUNG
  • Publication number: 20220015054
    Abstract: Disclosed herein are a gateway-signaling method for frequency/timing offsets and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a frequency/timing decision unit for determining a center frequency to which a frequency offset is applied using a carrier offset, which is identified using a timing and a management packet transmitted through a Studio-to-Transmitter Link (STL); and an RF signal generation unit for generating an RF signal to be transmitted, which corresponds to the center frequency.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 13, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-Young LEE, Sung-Ik PARK, Sun-Hyoung KWON, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20220014736
    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: Application
    Filed: May 13, 2021
    Publication date: January 13, 2022
    Applicants: 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: 20220014841
    Abstract: The present disclosure relates to a device for playing an acoustic sound and a touch sensation, and more particularly, to a device for emitting a sound to a front surface of a speaker and playing a touch sensation feedback to a rear surface of the speaker through a driving modulation using two or more speakers while simultaneously concentrating an acoustic pressure generated according to a vibration of a membrane of the speaker to a surface of a module through a movement pipe when an audio signal is applied.
    Type: Application
    Filed: May 24, 2021
    Publication date: January 13, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hye Jin KIM, JoonMin LEE, Yun-Jeong KIM, YuLim MIN, WOOSEUP YOUM, HANBIT JIN, Chan-Hwa HONG
  • Publication number: 20220014749
    Abstract: An image decoding method is disclosed in the present specification. A method of decoding an image, the method may comprises determining whether to perform a context update for a first syntax element of a current block, updating, on the basis of the determination, a context for entropy decoding of the first syntax element and generating, on the basis of the updated context, a bin for the first syntax element, and wherein whether to perform the context update is determined on the basis of the number of pre-decoded predetermined syntax elements for the current block.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 13, 2022
    Applicants: Electronics and Telecommunications Research Institute, CHIPS&MEDIA, INC
    Inventors: Sung Chang LIM, Jung Won KANG, Ha Hyun LEE, Jin Ho LEE, Hui Yong KIM, Dae Yeon KIM, Wook Je JEONG, Hyun Gyu KIM
  • Publication number: 20220015094
    Abstract: An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Soon Gi PARK, Yong Seouk CHOI
  • Publication number: 20220014869
    Abstract: A method and apparatus for performing binaural rendering of an audio signal are provided. The method includes identifying an input signal that is based on an object, and metadata that includes distance information indicating a distance to the object, generating a binaural filter that is based on the metadata, using a binaural room impulse response, obtaining a binaural filter to which a low-pass filter (LPF) is applied, using a frequency response control that is based on the distance information, and generating a binaural-rendered output signal by performing a convolution of the input signal and the binaural filter to which the LPF is applied.
    Type: Application
    Filed: March 12, 2021
    Publication date: January 13, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jae-hyoun YOO, Mi Suk LEE, Kyeongok KANG, Dae Young JANG
  • Patent number: 11221484
    Abstract: A scent visualization system may comprise a display apparatus for generating a target image including a target object; an olfactory sensor for detecting a scent; and a scent visualization apparatus for generating target associative visualization information that reminds the scent from the target image received from the display apparatus and sensing information received from the olfactory sensor, and generating an associative image by combining the target associative visualization information and the target image. Therefore, a low-cost, high-efficiency, high-utilization, and high-convenience scent visualization system can be provided.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: January 11, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Woo Choi, Jun Seok Park, Joon Hak Bang, Hae Ryong Lee, Sung June Chang
  • Patent number: 11222645
    Abstract: A multi-object audio encoding and decoding apparatus supporting a post downmix signal may be provided. The multi-object audio encoding apparatus may include: an object information extraction and downmix generation unit to generate object information and a downmix signal from input object signals; a parameter determination unit to determine a downmix information parameter using the extracted downmix signal and the post downmix signal; and a bitstream generation unit to combine the object information and the downmix information parameter, and to generate an object bitstream.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: January 11, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeongil Seo, Seungkwon Beack, Kyeongok Kang, Jin Woo Hong, Jinwoong Kim, Chieteuk Ahn, Kwangki Kim, Minsoo Hahn
  • Patent number: 11223817
    Abstract: Disclosed herein are dual stereoscopic image display apparatus and method. The dual stereoscopic image display method is performed by a dual stereoscopic image display apparatus, and includes separating a background image including a background and a foreground object image including a foreground object from multi-view stereoscopic image data, setting the background image so that the background image is output via a first display at a first resolution, and setting the foreground object image so that the foreground object image is output via a second display at a second resolution, and synchronizing the background image and the foreground object image into a single stereoscopic image via the first display and the second display, and outputting the stereoscopic image.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: January 11, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Do-Hyung Kim
  • Patent number: 11223448
    Abstract: An operation method of a first communication node in a communication system includes receiving a signal from a second communication node; demodulating the signal to obtain LLR values; calculating a first codeword based on the LLR values; selecting error patterns from among all error patterns based on Hamming weights; generating second codewords by applying the first codeword to each of the selected error patterns; and determining a codeword having a highest similarity to the first codeword among the second codewords as an optimal codeword.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: January 11, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ok Sun Park, Gi Yoon Park, Seok Ki Kim, Woo Ram Shin, Tae Joong Kim, Jae Sheung Shin, Young Ha Lee
  • Patent number: 11224036
    Abstract: The method for transmitting control information in a mobile communication system includes: determining a control channel resource for transmitting control information by means of the data channel region; and transmitting the control information using the determined control channel resource. A capacity for control information, which increases for multiple user multiple-input multiple-out (MIMOs) in a heterogeneous network environment, for heterogeneous network interference control using carrier aggregation, for frequent use of a multicast-broadcast single frequency network (MBSFN) subframe, and for a CoMP transmission control, may be satisfied. Further, an adaptive resource allocation based on a requested capacity for control information may be enabled, and the efficient utilization of resources may also be enabled.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 11, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Bang-Won Seo, Young-Jo Ko, Tae-Gyun Noh, Jae-Young Ahn
  • Patent number: 11223333
    Abstract: Provided is an amplification circuit for amplifying an input signal. The amplification circuit includes an input stage including an input matching circuit that receives the input signal and an input attenuation circuit that attenuates a gain for the input signal outside an operating frequency band of the amplification circuit, a transistor that amplifies the input signal provided from the input stage, and an output stage including an output matching circuit that receives a signal amplified by the transistor and an output attenuation circuit that attenuates the gain for the input signal outside the operating frequency band of the amplification circuit, and the input attenuation circuit includes a first resistor and a second resistor that are connected to a ground voltage, a first passive element connected between the input matching circuit and the second resistor, and a second passive element connected between the first passive element and the first resistor.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: January 11, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woojin Chang, Seong-Il Kim, Sang-Heung Lee, Jongmin Lee
  • Patent number: 11223839
    Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: January 11, 2022
    Assignees: Electronics and Telecommunications Research Institute, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Ho Kim, Hui Yong Kim, Se Yoon Jeong, Sung Chang Lim, Ha Hyun Lee, Jin Ho Lee, Suk Hee Cho, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Mun Churl Kim, Bum Shik Lee
  • Publication number: 20220006543
    Abstract: Disclosed herein are an apparatus and method for precise positioning based on deep learning. The method performed by the apparatus includes setting a collection location and a collection environment, collecting wireless signal data based on the collection location and the collection environment, generating a magnitude map image for training from the wireless signal data, and generating a positioning DB model by learning the image characteristics of the magnitude map image for training through deep-learning-based training.
    Type: Application
    Filed: May 28, 2021
    Publication date: January 6, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ju-Il JEON, Young-Su CHO, Myung-In JI