Patents Assigned to University-Industry Foundation, Yonsei University
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Publication number: 20240185037Abstract: Provided are a method for generating time series data and system therefor. The method according to some embodiments may include obtaining an autoencoder trained using original time series data, wherein the autoencoder includes an encoder and a decoder, obtaining a score predictor trained using latent vectors of original time series data generated through the encoder, extracting a plurality of noise vectors from a prior distribution, generating a plurality of synthetic latent vectors by updating the plurality of noise vectors using scores of the plurality of noise vectors predicted through the score predictor, and reconstructing the plurality of synthetic latent vectors into a plurality of synthetic time series samples through the decoder and outputting them.Type: ApplicationFiled: November 29, 2023Publication date: June 6, 2024Applicants: SAMSUNG SDS CO., LTD., UIF (University Industry Foundation), Yonsei UniversityInventors: Se Won PARK, Min Jung KIM, No Seong PARK
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Publication number: 20240188305Abstract: A memory device includes a substrate; a plurality of first conductive lines on the substrate and extending in a first direction; a plurality of second conductive lines on the plurality of first conductive lines and extending in a second direction crossing the first direction; and a plurality of first memory cells respectively arranged between the plurality of first conductive lines and the plurality of second conductive lines, wherein each first memory cell of the plurality of first memory cells includes a switching device and a variable resistance material pattern, and the switching device includes a material having a composition of LaxNi1-xOy, in which 0.13?x?0.30 and 0.9?y?1.5.Type: ApplicationFiled: December 1, 2023Publication date: June 6, 2024Applicant: UIF (University Industry Foundation), Yonsei UniversityInventors: Jinwoo LEE, Hyunchul SOHN, Jeongwoo LEE, Jaeyeon KIM, Kwangmin PARK, Dongho AHN, Jinmyung CHOI
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Publication number: 20240185557Abstract: Provided are an electronic devices and methods for processing an image through a canonical space, the method including receiving training images of a scene obtained from a first sensor, generating first conversion images by converting the training images into images corresponding to a scene obtained through a second sensor, generating second conversion images by converting a color value of the training images and a color value of the first conversion images, and training a canonical image generative model configured to convert the training images, the first conversion images, and the second conversion images into canonical space images of a canonical color space and a canonical illumination space.Type: ApplicationFiled: May 26, 2023Publication date: June 6, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD., UIF (University Industry Foundation), Yonsei UniversityInventors: Junsang YU, Dong Young KIM, Seon Joo KIM, Kinam KWON
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Patent number: 12000891Abstract: The exemplary embodiments of the present invention provides a scan cluster reordering method and apparatus which perform a scan correlation aware scan cluster reordering to reduce a power generated during the scan test and place scan cells having a high correlation to be adjacent to each other by analyzing the correlation between scan cells, and reduce a test power generated during the scan test.Type: GrantFiled: September 9, 2022Date of Patent: June 4, 2024Assignee: UIF (University Industry Foundation), Yonsei UniversityInventors: Sungho Kang, Sang Jun Lee
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Publication number: 20240175155Abstract: A hydrogen generation and carbon dioxide storage system for producing an alkali bicarbonate is provided. The system may include: a metal-carbon dioxide battery comprising an anode, a cathode, and a separator interposed between the anode and the cathode; a first supplier configured to provide a first electrolyte to the anode; a second supplier configured to provide a second electrolyte to the cathode; a reaction unit configured to manufacture a precursor material by reacting starting materials comprising aqueous alkali carbonate solution and carbon dioxide; a third supplier configured to provide the aqueous alkali carbonate solution to the reaction unit; a fourth supplier configured to provide the carbon dioxide to the reaction unit; and a hydrogen gas separator configured to separate hydrogen gas from a product discharged from the cathode and to provide a remainder of the product to the reaction unit.Type: ApplicationFiled: August 3, 2023Publication date: May 30, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UIF (University Industry Foundation), Yonsei UniversityInventors: Yun Su Lee, Ji Hoon Jang, Dongil Lee, Yongsung Jo
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SECONDARY BATTERY SEPARATOR COMPRISING CELLULOSE COATING LAYER AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20240178519Abstract: Disclosed is a secondary battery separator including a cellulose coating layer containing cellulose nanofibers and cellulose microfibers and prepared by using a specific content of dispersant, on a porous support layer. The secondary battery separator has a light weight, improved air permeability and excellent puncture strength, and thus realizes excellent physical properties, such as lithium-ion conductivity, wettability with an electrolyte and heat stability.Type: ApplicationFiled: November 22, 2023Publication date: May 30, 2024Applicant: UIF (University Industry Foundation), Yonsei universityInventors: Sang-Young LEE, Young-Kuk HONG -
SECONDARY BATTERY SEPARATOR COMPRISING CELLULOSE COATING LAYER AND METHOD FOR MANUFACTURING THE SAME
Publication number: 20240178520Abstract: Disclosed is a secondary battery separator including a cellulose coating layer containing cellulose nanofibers and cellulose nanocrystals on a porous support. The secondary battery separator has a light weight, excellent air permeability and excellent puncture strength, and thus can provide a lithium secondary battery with excellent physical properties, including ion conductivity, wettability with an electrolyte and heat stability.Type: ApplicationFiled: November 22, 2023Publication date: May 30, 2024Applicant: UIF (University Industry Foundation), Yonsei UniversityInventors: Sang-Young LEE, Young-Kuk HONG -
Patent number: 11996882Abstract: An impulse wireless communication system includes an oscillation signal generator that generates a plurality of oscillation signals having a delay interval with each other and having the same phase and amplitude or different phases and amplitudes, an envelope signal generator that extracts a sync signal and a data signal making up communication signal data and generates an envelope signal for the sync signal and an envelope signal for the data signal, a signal synthesizer that synthesizes the plurality of oscillation signals with the envelope signals, an envelope signal extractor that extracts a plurality of modulation envelope signals from the impulse signal, an amplitude phase determiner that determines the phase and the amplitude in the plurality of modulation envelope signals based on the plurality of oscillation signals, and a calculator that extracts the envelope signals from the plurality of modulation envelope signals based on the phase and the amplitude.Type: GrantFiled: November 22, 2022Date of Patent: May 28, 2024Assignee: UIF (University Industry Foundation), Yonsei UniversityInventors: Tae Wook Kim, Junyoung Jang
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Publication number: 20240171141Abstract: A capacitance detection circuit using a dynamic current mirror includes a first dynamic current mirror circuit including a reference capacitor connected in series with a first transistor and an input capacitor connected in series with a second transistor, and an oscillator circuit connected to an output node of the first dynamic current mirror circuit and configured to charge an integration capacitance using current output from the first dynamic current mirror circuit. The amount of change in voltage at a first node positioned between a source of the first transistor and the reference capacitor may be identical to the amount of change in voltage at a second node positioned between a source of the second transistor and the input capacitor.Type: ApplicationFiled: November 21, 2023Publication date: May 23, 2024Applicant: UIF (University Industry Foundation), Yonsei UniversityInventors: Young Cheol Chae, Hye Yeon Lee
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Publication number: 20240169016Abstract: There is provided a spatiotemporal data processing including a preprocessing unit that generates a continuous path for each node in time series data, and a main processing unit that combines a graph convolution network (GCN) with a neural controlled differential equation (NCDE) for the generated path to perform integration processing on temporal information and spatial information, and the main processing unit performs temporal processing and spatial processing on each node with two controlled differential equation (CDE) functions to calculate a last hidden vector and forecast an output layer.Type: ApplicationFiled: December 20, 2022Publication date: May 23, 2024Applicant: University Industry Foundation, Yonsei UniversityInventors: Noseong PARK, Jeongwhan CHOI, Jeehyun HWANG, Hwangyong CHOI
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Publication number: 20240160691Abstract: A method of operating a network switch for collective communication includes: receiving, via a network from external electronic devices, a first and second matrix each formatted according to a sparse matrix storage format; and generating a third matrix formatted according to the sparse matrix storage format, wherein the third matrix is generated by combining the first and second matrix according to the sparse matrix storage format, wherein, according to the sparse matrix storage format the first matrix includes first matrix positions of respective first element values and the second matrix includes second matrix positions of respective second element values, and wherein the combining includes comparing the first matrix positions with the second matrix positions.Type: ApplicationFiled: May 12, 2023Publication date: May 16, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD., UIF (University Industry Foundation), Yonsei UniversityInventors: Ho Young KIM, Min Sik KIM, Won Woo RO, Se Hyun YANG
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Publication number: 20240161228Abstract: There is provided a graphics processor performance analysis apparatus. The apparatus includes a model definition unit that defines a graphics processor core model for identifying structural stalls of computing and a memory, a data stall of the memory, and an idle stall, a simulation execution unit that simulates an operation of a specific GPU by using architecture parameters of a GPU application and the specific GPU as inputs on the basis of the graphics processor core model, and a performance analysis unit that receives an output of the graphics processor core model as a result of the simulation and analyzes performance of the specific GPU.Type: ApplicationFiled: December 21, 2022Publication date: May 16, 2024Applicant: University Industry Foundation, Yonsei UniversityInventors: Youngsok KIM, Jounghoo LEE, Yeonan HA, Suhyun LEE
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Publication number: 20240164213Abstract: The present disclosure relates to an ion thermoelectric elastomer, which exhibit excellent thermal and air stability as well as excellent mechanical properties even under tensile stretching by adjusting poly(ethylene glycol) diacrylate (PEGDA), 2-hydroxyethyl acrylate (2-HEA), and an ion conductive dopant to a certain content range, and exhibit excellent ionic thermoelectric properties compared to conventional materials by having a high Seebeck coefficient and ionic conductivity, and a thermoelectric element including the same. Accordingly, the thermoelectric element using the ion thermoelectric elastomer according to the present disclosure as a thermoelectric material exhibits excellent mechanical performance and thermal stability, and thus exhibits excellent and stable ionic thermoelectric properties, such as excellent compatibility with a high-temperature curved surface or skin curvature, while generating an output voltage even in various environments.Type: ApplicationFiled: June 20, 2023Publication date: May 16, 2024Applicant: UIF (University Industry Foundation), Yonsei UniversityInventors: Cheol Min PARK, Tae Hyun PARK
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Publication number: 20240156398Abstract: The present disclosure relates to a system and method for improving sleep quality, and particularly, to a system and method for improving sleep quality that can induce correct sleep behavior of a user by measuring objective sleep quality in a wearless state and measuring and analyzing subjective sleep quality in a user-friendly manner. The system for improving sleep quality according to an embodiment of the present disclosure includes: a mattress configured to measure objective sleep quality information of a user in a wearless type; a behavior correction assistance device disposed at a predetermined distance from the mattress; and an AI speaker configured to integrate and analyze objective sleep quality information measured by the mattress and subjective sleep quality information determined through Q&A with the user.Type: ApplicationFiled: November 17, 2023Publication date: May 16, 2024Applicant: UNIVERSITY INDUSTRY FOUNDATION, YONSEI UNIVERSITY WONJU CAMPUSInventor: Tae Hui KIM
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Patent number: 11980873Abstract: The present invention relates to a method for producing hollow activated carbon nanofibers for activating peroxymonosulfate used in water purification; a catalyst for water purification comprising the hollow active carbon nanofibers produced by the method; and a method for purifying contaminated water using the catalyst. The production method of the present invention can easily produce hollow activated carbon nanofibers capable of rapidly purifying contaminated water by highly efficiently activating peroxymonosulfate used for water purification.Type: GrantFiled: February 9, 2021Date of Patent: May 14, 2024Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITYInventors: Jung Ho Hwang, Sang Mo Kang, Hyeong Rae Kim
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Publication number: 20240152461Abstract: Disclosed is a method of operating a swap memory device configured to communicate with a host device and a main memory device. The method includes receiving, from the host device, a request corresponding to target data, determining, by the swap memory device, a first address of the target data and a second address of a target data block that includes the target data, based on the request, providing, by the swap memory device, the target data to the host device based on the first address, and providing, by the swap memory device, the target data block to the main memory device based on the second address.Type: ApplicationFiled: July 11, 2023Publication date: May 9, 2024Applicant: UIF (University Industry Foundation), Yonsei UniversityInventors: Won Woo Ro, Hyoseong Choi, Jiwon Lee, Jeonghoon Choi
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Patent number: 11974970Abstract: A muscular atrophy-inducing agent containing, as an active ingredient, a hypometabolism-inducing substance selected from the group consisting of 3-iodothyronamine (T1AM), [D-Ala2,D-Leu5] enkephalin (DADLE), 5?-adenosine monophosphate (5?-AMP), and hydrogen sulfide (H2S), and a method for preventing or treating muscular hypertrophy; and a method for shrinking facial muscle are proposed. The muscular atrophy study model can provide a study model for an economic muscular atrophy study by using a hypometabolism-inducing substance which can be mass-produced, has an effect which may be usefully used by verification for screening of a drug for preventing or treating muscular atrophy, and can be usefully used as a compositions for preventing or treating muscular hypertrophy and a composition for facial muscle shrinkage through the muscular atrophy effect.Type: GrantFiled: September 23, 2020Date of Patent: May 7, 2024Assignee: UNIVERSITY INDUSTRY FOUNDATION, YONSEI UNIVERSITY WONJU CAMPUSInventors: Inho Choi, Chan-Moon Chung
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Patent number: 11977607Abstract: Disclosed are a CAM-based weakly supervised object localization device and method. The device includes: a feature map extractor configured to extract a feature map of a last convolutional layer in a convolutional neural network (CNN) in a process of applying an image to the CNN; a weight vector binarization unit configured to first binarize a weight vector of a linear layer in a process of sequentially applying the feature map to a pooling layer that generates a feature vector and the linear layer that generates a class label; a feature map binarization unit configured to second binarize the feature map based on the first binarized weight vector; and a class activation map generation unit configured to generate a class activation map for object localization based on the second binarized feature map.Type: GrantFiled: November 5, 2021Date of Patent: May 7, 2024Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITYInventors: Hye Ran Byun, Sanghuk Lee, Cheolhyun Mun, Pilhyeon Lee, Jewook Lee
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Publication number: 20240146498Abstract: An apparatus for correcting an error of a clock signal may include a phase adjuster that corrects an error of half-rate clock signals based on an error correction signal to output an error-corrected clock signal, a phase splitter that outputs quadrature clock signals from the error-corrected clock signal, an error detector that outputs an internal clock signal based on one of the quadrature clock signals, selects two quadrature clock signals among the quadrature clock signals based on a clock selection signal, and detects errors of the two quadrature clock signals based on an error check signal to output a correction request signal, and a controller that outputs a mode selection signal and the clock selection signal based on the internal clock signal and that outputs the error correction signal and the error check signal based on the mode selection signal, the clock selection signal, and the correction request signal.Type: ApplicationFiled: May 14, 2023Publication date: May 2, 2024Applicants: Samsung Electronics Co., Ltd., UIF (University Industry Foundation), Yonsei UniversityInventors: BYONGMO MOON, Jeonghyeok YOU, Seongook JUNG, Taeryeong KIM, Hohyun Chae
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Publication number: 20240141481Abstract: A method of cleaning a semiconductor processing system may include applying a vacuum pressure to a supply pipeline through which a process fluid is transferred to a process chamber and purging the supply pipeline with a cleaning gas, wherein the purging the supply pipeline with the cleaning gas includes by supplying the cleaning gas to a front end of the supply pipeline and discharging the cleaning gas supplied to the supply pipeline by applying an atmospheric pressure from a back end of the supply pipeline.Type: ApplicationFiled: May 25, 2023Publication date: May 2, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD., UIF (University Industry Foundation), Yonsei UniversityInventors: IREH SEO, CHANG-HA LEE, TAEUNG YOON, RAK-YOUNG JEON