Abstract: The present invention relates to a multi-path converter, which adds a current transfer path using a capacitor to a current transfer path using an inductor to supply a current that is output to an output end (load) to a plurality of parallel paths, thereby reducing a total RMS current flowing through the inductor, and a control method therefor.
Type:
Application
Filed:
June 1, 2023
Publication date:
October 26, 2023
Applicant:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Gyu Hyeong CHO, Yeun Hee HUH, Se UN SHIN, Sung Won CHOI, Yong Min JU, Sang Jin LIM
Abstract: A disclosed micro pre-concentrator includes a base substrate having a trench, and a 3D nano-shell composite disposed in the trench and having pores that are ordered and connected to each other. The 3D nano-shell composite includes a 3D nano-shell support defined by a thin film extending three-dimensionally and a polymeric layer formed along a surface of the 3D nano-shell support. The micro pre-concentrator may increase adsorption amount of gas. In addition, since it may be uniformly heated in a short time, it is possible to release gas at a high density in a short time.
Type:
Application
Filed:
April 18, 2023
Publication date:
October 26, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Inventors:
Seokwoo Jeon, Byungyoon Chung, Kisun Kim
Abstract: Disclosed are an optical-time-division-multiplexed transmission method and system using a simple sinusoidally modulated optical signal as an input pulse source. An optical-time-division-multiplexed transmission system comprises: an optical-time-division-multiplexed transmitter by applying a sinusoidal electrical signal, a first multi-level electrical PAM signal, and a second multi-level electrical PAM signal so as to generate an optical-time-division-multiplexed multi-level PAM signal; an optical detector for converting the transmitted optical-time-division-multiplexed PAM signal into an electrical signal; a time-division-demultiplexer for demultiplexing the detected electrical signal into two signals; a MIMO equalizer; and two decision elements for determining the levels of two demultiplexed signals obtained from the MIMO equalizer.
Type:
Grant
Filed:
February 26, 2020
Date of Patent:
October 24, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Yun Chur Chung, Sunghyun Bae, Byunggon Kim, Minsik Kim
Abstract: A method and apparatus with image processing are provided. A method includes determining sample points sampled on a camera ray, wherein the camera ray is based on view-generation information comprising a scene viewing-position and a scene-viewing direction, determining location statuses of the respective sample points based on a virtual cylindrical coordinate system defined by a center and a radius, projecting and rendering a value of a pixel corresponding to the camera ray by, according the location statuses, applying the view-generation information to a first neural network to generate a first rendering result and to a second neural network to generate a second rendering result, wherein the first neural network has been trained to generate foreground images and the second neural network has been trained to generate background images, and generating a rendered image based on blending the first rendering result and the second rendering result.
Type:
Application
Filed:
March 31, 2023
Publication date:
October 19, 2023
Applicants:
Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
Inventors:
Heesae LEE, Kyubeom HAN, Jaeyoon KIM, Sung-Eui YOON, Seeha LEE, Inwoo HA
Abstract: A method performed by a base station in a wireless communication system, includes: determining, from among a plurality of antennas of the base station, a first antenna that meets a power threshold, based on a first beamformer scaled according to a power limit; generating a second beamformer corresponding to the first antenna; applying an overlap coefficient matrix to the second beamformer; generating a third beamformer by combining the second beamformer to which the overlap coefficient matrix has been applied and the first beamformer; and transmitting a signal using the third beamformer.
Type:
Application
Filed:
May 1, 2023
Publication date:
October 19, 2023
Applicants:
SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Yongyun CHOI, Chulhee JANG, Junil CHOI, Sucheol KIM, Hyeongtaek LEE, Hwanjin KIM
Abstract: In this invention, we propose a convolutional neural network (CNN) based architecture designed for the ITM to HDR consumer displays, called ITM-CNN, and its training strategy for enhancing the performance based on image decomposition using the guided filter. We demonstrate the benefits of decomposing the image by experimenting with various architectures and also compare the performance for different training strategies. To the best of our knowledge, this invention first presents the ITM problem using CNNs for HDR consumer displays, where the network is trained to restore lost details and local contrast. Our ITM-CNN can readily up-convert LDR images for direct viewing on an HDR consumer medium, and is a very powerful means to solve the lack of HDR video contents with legacy LDR videos.
Type:
Grant
Filed:
September 23, 2021
Date of Patent:
October 17, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: Disclosed are a memristor device, a method of fabricating the same, a synaptic device including a memristor device, and a neuromorphic device including a synaptic device. The disclosed memristor device may comprise a first electrode, a second electrode disposed to be spaced apart from the first electrode; and a resistance changing layer including a copolymer between the first electrode and the second electrode. The copolymer may be a copolymer of a first monomer and a second monomer, and the first polymer formed from the first monomer may have a property that diffusion of metal ions is faster than that of the second polymer formed from the second monomer. The second polymer may have a lower diffusivity of metal ions as compared with the first polymer. The first monomer may include vinylimidazole (VI). The second monomer may include 1,3,5-trivinyl-1,3,5-trimethylcyclotrisiloxane (V3D3). The copolymer may include p(V3D3-co-VI).
Type:
Grant
Filed:
August 4, 2021
Date of Patent:
October 17, 2023
Assignees:
SK hynix Inc., Korea Advanced Institute of Science and Technology
Inventors:
Sangsu Park, Sung-Yool Choi, Sung Gap Im, Sang Yoon Yang, Jungyeop Oh
Abstract: Disclosed is an image processing method and apparatus. The image processing method includes extracting a content latent code and a style latent code for each of a plurality of input images, obtaining a content feature vector by calculating a weighted sum of content latent codes extracted from the input images based on a morphing control parameter, obtaining a style feature vector by calculating a weighted sum of style latent codes extracted from the input images based on the morphing control parameter, and generating a morphing image based on the content feature vector and the style feature vector.
Type:
Grant
Filed:
August 12, 2021
Date of Patent:
October 17, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Junyong Noh, Sanghun Park, Kwanggyoon Seo
Abstract: An organometallic compound represented by Formula I, an organic light-emitting device including the same, and a diagnostic composition including the organometallic compound.
Type:
Grant
Filed:
January 10, 2020
Date of Patent:
October 17, 2023
Assignees:
SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Sangdong Kim, Seoungtae Kim, Wooyoun Kim, Jinwoo Kim, Muhyun Baik, Seungyeol Baek, Seungyeon Kwak, Won-joon Son, Yongsuk Cho, Jongwon Choi, Hyeonho Choi, Byoungki Choi
Abstract: There is provided a 3D image generation method and apparatus. A 3D image generation method according to an embodiment includes outputting a signal to an object from at least one point, receiving the signal reflected by the object at one or more points, and generating a 3D image of the object based on a temporal feature and a spectral feature of the signal reflected by the object.
Type:
Grant
Filed:
April 1, 2020
Date of Patent:
October 10, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Hyeon-Min Bae, Gunpil Hwang, Seohyeon Kim
Abstract: The present invention relates to a flexible pressure sensor using a multi-material 3D-printed microchannel mold, and a method for manufacturing the same, and more particularly, to a flexible pressure sensor having improved flexibility, sensitivity, and stability for use in a wearable device, and a method for manufacturing the same. Further, the present invention relates to a physical sensor for measuring a force applied from the outside, and more particularly, to a multi-directional physical sensor using a multi-layer microchannel array, which may sense all forces applied from the outside in three-dimensional directions such as a perpendicular direction and a parallel direction by applying the multi-layer microchannel array to a body having a three-dimensionally protruding shape.
Type:
Grant
Filed:
September 10, 2020
Date of Patent:
October 10, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: The present disclosure provides an oxidization electrode for anion exchange membrane water electrolysis having low cost, high performance, and high stability. Specifically, an embodiment of the present disclosure provides an oxidization electrode for anion exchange membrane water electrolysis, comprising: a nickel metal; and a layered double hydroxide (LDH) with a monolayer structure containing nickel and iron and disposed on one surface or both surfaces of the nickel metal.
Type:
Application
Filed:
November 10, 2021
Publication date:
October 5, 2023
Applicants:
HANWHA SOLUTIONS CORPORATION, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Gil Ho KIM, Hyunjoo LEE, Chi Woo ROH, Kyu Ho SONG, Sun Seo JEON
Abstract: A transparency-adjusting apparatus includes a transparency-adjustable film including a polymer and an array of pores that are three-dimensionally ordered and connected to each other, and a compressive-strain adjusting part that adjusts a compressive strain of the transparency-adjustable film in a vertical direction. A transparency of the transparency-adjustable film varies depending on the compressive strain. The pores are arranged to tilt from the vertical direction.
Type:
Application
Filed:
December 27, 2022
Publication date:
October 5, 2023
Applicant:
Korea Advanced Institute of Science and Technology
Abstract: The present invention provides a method comprising the steps of: generating a second anchor on the second convolutional feature map by scaling and shifting a first anchor in the ground-truth box; generating a third convolutional feature map by convolving the second convolutional feature map by means of a second convolution; determining whether the overlap ratio between the ground-truth box and a second single anchor is greater than or equal to a reference value; generating a third anchor by scaling and shifting the second anchor having an overlap ratio that is greater than or equal to the reference value; assigning an objectivity score to the third anchor; and presenting the third anchor, which has an objectivity score that is equal to or greater than a reference value, as a proposal on the third convolutional feature map.
Type:
Application
Filed:
September 15, 2020
Publication date:
October 5, 2023
Applicant:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Changdong YOO, Thang VU, Xuan Trung PHAM, Hyunjun JANG
Abstract: The present invention relates to a method for etching lithium niobate, the method including a process of etching lithium niobate using a mask pattern as a physical dry etching method using Ar plasma produced in a chamber through Ar gas, wherein in the process of etching lithium niobate, a process pressure of the chamber is maintained at 1 mTorr to 20 mTorr, and a method for forming a lithium niobate pattern using the same.
Type:
Application
Filed:
February 27, 2023
Publication date:
September 28, 2023
Applicants:
Korea Institute of Science and Technology, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Ho Joong JUNG, Sang Wook HAN, Hyung Jun HEO, Hansuek LEE, Min Kyo SEO, Hyeon HWANG
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:
Application
Filed:
June 1, 2023
Publication date:
September 28, 2023
Applicants:
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
Abstract: A wireless power transmission device can include a plurality of transmission coil units, in which each of the plurality of transmission coil units includes a plurality of antenna coils arranged on different three-dimensional planes, and the plurality of antenna coils are configured to generate a magnetic field passing through at least one or more of the different three-dimensional planes to transfer transmission power to a wireless power reception device.
Type:
Application
Filed:
August 10, 2020
Publication date:
September 21, 2023
Applicants:
LG ELECTRONICS INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jungkeun PARK, Gu Ho JUNG, Chung Hee LEE, Ju Yong LEE, Dong Ho CHO, Dang-Oh KIM
Abstract: The present invention relates to a molten salt-metal reactor for implementing a micro-reactor, and more specifically, to a molten salt-metal reactor including a liquid metal nuclear fuel and a molten salt coolant, wherein the molten salt coolant is disposed in an upper portion of the liquid metal nuclear fuel such that the heat generated from the nuclear fuel is transferred to the molten salt coolant and cooled.
Type:
Application
Filed:
July 13, 2022
Publication date:
September 21, 2023
Applicants:
Korea Advanced Institute of Science and Technology, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
Inventors:
Yong Hee KIM, Sung Joong KIM, Won Jun CHOI, Juhyeong LEE, Seongdong JANG, Taesuk OH, Eunhyug LEE
Abstract: Provided are a method of and a device for measuring a glass transition temperature and a degree of crystallinity of a polymer. According to the measurement method and the device of one exemplary embodiment of the present invention, a glass transition temperature and a degree of crystallinity may be measured easily, rapidly, and accurately in a field other than a laboratory, and fast and accurate conversion is possible for various measurement conditions such as temperature, frequency, etc.
Type:
Grant
Filed:
August 6, 2020
Date of Patent:
September 19, 2023
Assignee:
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: Disclosed are a method and system for visualizing a dyed hair image. The method of visualizing dyeing hair includes separating a hair area from an image related to a dyeing target, detecting a color characteristic of the hair area, determining a target color corresponding to the color characteristic by using a dataset comprising color difference values of dyeing hair using a hairdye product, performing a color transfer using the target color on the hair area, and merging the hair area on which the color transfer using the target color as been performed with the image.
Type:
Application
Filed:
March 8, 2023
Publication date:
September 14, 2023
Applicants:
Korea Advanced Institute of Science and Technology, AMOREPACIFIC CORPORATION
Inventors:
Hyeon-Jeong SUK, Boram KIM, Chul Min KIM, Hyun CHOI, Moonha KIM, Jihye HYOUNG, Hwaseon LEE