Patents Assigned to Gwangju Institute of Science and Technology
  • Patent number: 11958571
    Abstract: According to an embodiment, a maritime wireless communication system comprises a communication module installed in the at least one buoy, providing sensing information, identification information, and location information for the at least one buoy and a gateway device installed in each of a fishing vessel terminal device and a managing vessel terminal device, performing communication with the at least one buoy and a land control center via a long range (LoRa)-based communication network to provide various types of fishery information, and setting different communication options for a normal condition and the event condition in performing a communication connection function.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: April 16, 2024
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ki Seon Kim, Myoung Shin Kwak, Pranesh Psthapit, Min Seok Kim
  • Publication number: 20240108977
    Abstract: The present disclosure relates to a force and complex vibration rendering system using a force feedback device and a wideband resonance actuator, and a method for providing force and complex vibration using the system.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 4, 2024
    Applicants: GIST(Gwangju Institute of Science and Technology), Gleam Systems Co., Ltd.
    Inventors: Gun Hyuk PARK, Gyeong Deok KIM, Dong Hyeon KIM, Bong Soo KIM, Sung Ho KIM
  • Patent number: 11945002
    Abstract: The present disclosure relates to an automatic metal sorting system using laser induced breakdown spectroscopy. The system may include: a conveyer configured to move waste metals at a constant speed; a shape measurer configured to measure a position and a shape of at least one waste metal on the conveyer; a laser induced breakdown spectroscopic device configured to determine the kind of the waste metal by emitting a laser to the waste metal and receiving and analyzing a plasma spectrum signal generated by the emitted laser; and a discharger configured to separate and discharge the waste metal in accordance with the determined kind of the waste metal.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: April 2, 2024
    Assignee: GIST(Gwangju Institute of Science and Technology)
    Inventors: Sung Ho Jeong, Sung Ho Shin, Young Min Moon, Jae Pil Lee
  • Publication number: 20240077594
    Abstract: Provided is an optical phase array antenna including a coupling unit for receiving light from a light source, a light distribution unit for distributing light propagated from the coupling unit to a plurality of optical paths, a phase modulation unit for modulating a phase of the light distributed from the light distribution unit, and a light output unit that outputs the light modulated by the phase modulation unit, and includes an antenna element waveguide extending at a predetermined length through which the light propagates, and a clad layer formed to surround the antenna element waveguide, in which the antenna element waveguide has a first recessed portion recessed downward with respect to an upper surface thereof, and the clad layer has a second recessed portion recessed downward with respect to an upper surface thereof at a position adjacent to the first recessed portion.
    Type: Application
    Filed: December 28, 2022
    Publication date: March 7, 2024
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Nan Ei YU, Byeong Chan PARK
  • Publication number: 20240070362
    Abstract: A simulation method includes establishing a carrier distribution function of a semiconductor device model, computing one or more values corresponding to a solution of an approximate Boltzmann transport equation with respect to the carrier distribution function, and outputting a performance value of the semiconductor device model, which corresponds to the one or more values corresponding to the solution of the approximate Boltzmann transport equation, as a simulation result value.
    Type: Application
    Filed: May 18, 2023
    Publication date: February 29, 2024
    Applicants: Samsung Electronics Co., Ltd., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventor: Sung-Min HONG
  • Patent number: 11916565
    Abstract: An analog-to-digital converter is provided. The analog-to-digital converter includes: a sample/hold circuit; a digital-to-analog converter; a plurality of comparison circuits; a control logic; and a digital register, wherein the plurality of comparison circuits include: a first comparison circuit configured to output a first comparison result signal in a first operation period; a second comparison circuit configured to, in a second operation period, calibrate an offset of a second comparison result signal based on a reference signal corresponding to the first comparison result signal among a plurality of reference signals and output the calibrated second comparison result signal; and a third comparison circuit configured to, in a third operation period, calibrate an offset of a third comparison result signal based on a reference signal corresponding to the calibrated second comparison result signal and output the calibrated third comparison result signal.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: February 27, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jaerin Lee, Minjae Lee, Sewon Lee, Kyeongkeun Kang
  • Patent number: 11906514
    Abstract: The invention encompasses methods and test strips for detecting the presence of cerebrospinal fluid (CSF) in a biological sample with a lateral flow device which uses lectin conjugates, anti-antigen conjugates, an immobilized serum line, and an immobilized anti-antigen line.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: February 20, 2024
    Assignees: NSPC Technologies, LLC, Gwangju Institute of Science and Technology
    Inventor: Min-Gon Kim
  • Patent number: 11878003
    Abstract: This application relates to a composition for preventing, treating, and improving skeletal muscle atrophy, the composition including an organoselenium compound. The composition recovered the thickness of muscle fiber reduced by dexamethasone treatment. In addition, the treatment of mice in a muscle loss model showed that the composition had an effect of reducing damaged muscle and of restoring muscle mass. Therefore, it is expected that the composition can be effectively used for the treatment, prevention, or improvement of muscle atrophy.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 23, 2024
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Darren Reece Williams, Da-Woon Jung, Ji-Hyung Lee, Hyun-Jun Kim, Seon-Wook Kim
  • Publication number: 20240013060
    Abstract: An early stopping method for a neural network according to an embodiment of the present disclosure includes: dividing a labeled dataset into a training dataset and a validation dataset; creating a pretrained neural network by training a neural network using the training dataset and early stopping learning of the neural network using the validation dataset; and creating a target neural network for each epoch by training the target neural network using the entire labeled dataset, and early stopping learning of the target neural network on the basis of a similarity between output of the pretrained neural network on at least one of the labeled data and unlabeled data and output of the target neural network on the unlabeled data.
    Type: Application
    Filed: January 30, 2023
    Publication date: January 11, 2024
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Hyunju Lee, HongSeok Choi, Dongha Choi
  • Publication number: 20230419547
    Abstract: The present disclosure relates to a virus detection method that detects whether viruses are arranged in multiple layers and the density of viruses using a color change of a virus detector. A virus detection method according to an embodiment of the present disclosure includes: taking an image of a virus detector reacting with a target analysis object; and determining whether viruses are arranged in multiple layers and density of the viruses in the target analysis object in accordance with a saturation value of the image.
    Type: Application
    Filed: January 26, 2023
    Publication date: December 28, 2023
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Young Min SONG, Joo Hwan KO, Young Jin YOO
  • Publication number: 20230380712
    Abstract: The present invention relates to apparatus for a nanoparticle thermal therapy based on an open magnetic particle image. The apparatus for a nanoparticle thermal therapy based on an open magnetic particle image according to an exemplary embodiment of the present invention may include: a selection coil generating a field free point (FFP) for a nanoparticle in a first direction; a focus coil generating a magnetic field and moving the FFP in a second direction; and a heating coil heating the nanoparticle in a target area based on the FFP in the second direction.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Jung Won YOON, Tuan Anh LE, Minh Phu BUI
  • Publication number: 20230377177
    Abstract: The present disclosure relates to a method of aligning images included in a focal stack and estimates depth information of an object in the images by extracting features of the aligned images, using a neural network model. A focal stack alignment method according to an embodiment of the present disclosure includes: calculating a relative Field of View (FoV) of a focal stack photographed by a photographing device using metadata of the photographing device; primarily aligning the focal stack on the basis of the relative FoV; determining a flow field of the focal stack using radial motion, horizontal motion, and vertical motion features of each of primarily aligned images; and secondarily aligning the focal stack using the flow field.
    Type: Application
    Filed: January 24, 2023
    Publication date: November 23, 2023
    Applicant: GIST (Gwangju Institute of Science and Technology)
    Inventors: Hae-Gon JEON, Chang Yeon WON
  • Publication number: 20230365775
    Abstract: Disclosed are an electrically conductive hydrogel having a graphene network and a method for fabricating the same. The electrically conductive hydrogel is fabricated by thermal annealing of granular hydrogel, and thus it has a porous structure, excellent electrical conductivity, and improved compressive modulus and yield stress. Accordingly, the electrically conductive hydrogel may be advantageously used in biomedical applications, such as scaffolds for tissue engineering, bioelectrodes, and biosensors.
    Type: Application
    Filed: April 17, 2023
    Publication date: November 16, 2023
    Applicant: Gwangju Institute of Science and Technology
    Inventors: Jae Young LEE, Jung Geon PARK
  • Publication number: 20230352041
    Abstract: The present invention relates to a speaker diarization technology, and more specifically to, end-to-end speaker diarization system and method through transformer learning having an auxiliary loss-based residual connection to separate speakers by dividing the speakers for time interval, wherein the end-to-end speaker diarization system and method using an auxiliary loss can differentiate and separate speakers through speaker labeling based on the transformer learning using an auxiliary loss even if speaker speeches overlap in a multi-speaker environment.
    Type: Application
    Filed: November 29, 2022
    Publication date: November 2, 2023
    Applicant: Gwangju Institute of Science and Technology
    Inventors: Dong Keon PARK, Hong Kook KIM, Ye Chan YU
  • Patent number: 11804230
    Abstract: An audio encoding/decoding apparatus and method using vector quantized residual error features are disclosed. An audio signal encoding method includes outputting a bitstream of a main codec by encoding an original signal, decoding the bitstream of the main codec, determining a residual error feature vector from a feature vector of a decoded signal and a feature vector of the original signal, and outputting a bitstream of additional information by encoding the residual error feature vector.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: October 31, 2023
    Assignees: Electronics and Telecommunications Research Institute, Gwangju Institute of Science and Technology
    Inventors: Inseon Jang, Seung Kwon Beack, Jongmo Sung, Tae Jin Lee, Woo-taek Lim, Jongwon Shin, Youngju Cheon, Sangwook Han, Soojoong Hwang
  • Publication number: 20230342948
    Abstract: The present disclosure relates to a method for sampling a random vector corresponding to an intention of a pedestrian non-stochastically or applying a social statistical element that the majority of pedestrians move in groups to training, in training a neural network model for pedestrian trajectory prediction.
    Type: Application
    Filed: February 27, 2023
    Publication date: October 26, 2023
    Applicant: GIST(Gwangju Institute of Science and Technology)
    Inventors: Hae Gon JEON, In Hwan BAE, Jin Hwi PARK
  • Publication number: 20230330432
    Abstract: A device for relieving dementia symptoms is disclosed. The device for relieving dementia symptoms includes a light stimulation part disposed at a location within a preset radius from an eyeball and frontal lobe of a patient and configured to relieve dementia symptoms of the patient by radiating light having a preset wavelength band to an optic nerve and frontal lobe of the patient, and a controller configured to control an operation of the light stimulation part.
    Type: Application
    Filed: May 18, 2023
    Publication date: October 19, 2023
    Applicants: N.CER Co., Ltd, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae won KIM, Jae Gwan KIM, Jeong Dae YUN, Sung Chul KIM
  • Publication number: 20230324469
    Abstract: The present disclosure relates to a method for predicting lifespan characteristics of a lithium secondary battery that can reliably predict the lifespan characteristics of a lithium secondary battery, specifically, the mode of variation in cycle capacity in advance.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 12, 2023
    Applicants: LG ENERGY SOLUTION, LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dongin CHOI, Hyeong Jin KIM, Wonhee KIM, Seok Koo KIM
  • Patent number: 11783844
    Abstract: Disclosed are methods of encoding and decoding an audio signal using side information, and an encoder and a decoder for performing the methods. The method of encoding an audio signal using side information includes identifying an input signal, the input signal being an original audio signal, extracting side information from the input signal using a learning model trained to extract side information from a feature vector of the input signal, encoding the input signal, and generating a bitstream by combining the encoded input signal and the side information.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 10, 2023
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Woo-taek Lim, Seung Kwon Beack, Jongmo Sung, Tae Jin Lee, Inseon Jang, Jong Won Shin, Soojoong Hwang, Youngju Cheon, Sangwook Han
  • Patent number: 11773431
    Abstract: A diagnosis kit is disclosed. The diagnosis kit according to an embodiment of the present invention includes a concentration channel into which a sample containing a methylated DNA is introduced, a concentration chamber connected to the concentration channel, wherein the methylated DNA is concentrated by an ion concentration polarization (ICP) phenomenon and moves to the concentration chamber, a sensing chamber connected to the concentration chamber to allow the methylated DNA inside the concentration chamber to move, allow the methylated DNA moved from inside of the concentration chamber to be hybridized, and allow a methylated DNA binding protein to be bound to the hybridized methylated DNA, and a sensor configured to acquire a first electrochemical signal inside the sensing chamber when the methylated DNA is hybridized and acquire a second electrochemical signal inside the sensing chamber when the methylated DNA binding protein is bound.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 3, 2023
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Sung Yang, Sung A Hong