Patents Assigned to Seoul National University
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Publication number: 20240137981Abstract: An operating method of an access point (AP) multi-link device (MLD) is provided. The operating method includes: based on at least one non-AP MLD and at least one single link device (SLD) attempting channel access through a first link of the AP MLD, identifying a contention window of the at least one non-AP MLD, based on a ratio of, with respect to the first link, an idle time of the at least one non-AP MLD to an idle time of the at least one SLD; and transmitting a beacon frame including information about the contention window to the at least one non-AP MLD.Type: ApplicationFiled: October 13, 2023Publication date: April 25, 2024Applicants: Samsung-ro Electronics Co, Ltd., Seoul National University R &DB Foundation.Inventors: Jonghun Han, Saewoong Bahk, Jongyeon Park
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Patent number: 11959886Abstract: The present invention relates to a scanner having a flexible probe which is an apparatus capable of being utilized for an inspection on a weld zone of a general ferrite material and a stainless material and allowing an inspection to be performed on a fitting weld zone where it is difficult for a general phased array ultrasonic testing (PAUT) probe to approach.Type: GrantFiled: November 18, 2020Date of Patent: April 16, 2024Assignees: Foundation for Research and Business, Seoul National University of Science and Technology, Korea Inspection Eng.Co., LtdInventors: Ik Keun Park, Yu Min Choi, Seong Jin Lim, In Gon Jung, Hye Jin Park
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Patent number: 11963372Abstract: Disclosed is a three-terminal electro-chemical memory cell with a vertical structure for neuromorphic computation, including a circumferential hole, first and second conductive electrode layers sequentially stacked along an outer surface of the circumferential hole, an electrolyte layer formed along an inner surface of the circumferential hole and connected to one end of each of the first and second conductive electrode layers, and a gate electrode disposed parallel to the electrolyte layer in an inner surface direction of the circumferential hole.Type: GrantFiled: September 8, 2021Date of Patent: April 16, 2024Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Yun Seog Lee, Hyunjoon Lee
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Publication number: 20240116501Abstract: A collision safety control system includes a memory storing a collision safety model having a deep learning-based collision safety control logic. The collision safety control system also includes a processor electrically connected to the memory. The processor is configured to, in accordance with the collision safety control logic, train, based on at least one signal including pre-collision data and post-collision data, the collision safety model such that the collision safety model outputs a collision type and a required time-to-fire (RTTF) of passenger protection equipment corresponding to the at least one signal.Type: ApplicationFiled: October 6, 2023Publication date: April 11, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Seoul National University R&DB FoundationInventors: Hyung Wook Park, Sung Roh Yoon, Dong Hyeok Lee
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Publication number: 20240119297Abstract: A processor-implemented method with checkpointing includes: performing an operation for learning of an artificial neural network (ANN) model; and performing a checkpointing to store information about a state of the ANN model, simultaneously with performing the operation for the learning of the ANN model.Type: ApplicationFiled: February 3, 2023Publication date: April 11, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD., Seoul National University R&DB FoundationInventors: Junyeon LEE, Jin-soo KIM, Seongyeop JEONG, Uiseok SONG, Byungwoo BANG, Wooseok CHANG, Hun Seong CHOI
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Patent number: 11955092Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.Type: GrantFiled: April 15, 2023Date of Patent: April 9, 2024Assignees: SAMSUNG DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Jeonkyoo Kim, Soo Yeon Lee, Manseung Cho, Kyeong Soo Kang, Junhee Moon, Bonghyun You, Jin Kyu Lee
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Patent number: 11945276Abstract: The present disclosure discloses a preview vehicle height control system and a method of controlling the same. The system includes a monitoring device configured to detect the road surface condition of a driving path of a vehicle, an active suspension configured to adjust a vehicle height, a memory configured to store a plurality of data maps distinguished based on a type of bump, each data map having a vehicle dynamic characteristic as an input and a tuning factor as an output, and a controller configured to derive the tuning factor based on a data map, among the plurality of data maps of the memory, corresponding to the bump detected by the monitoring device, derive a target vehicle height in a form of a Gaussian distribution by substituting the tuning factor, and control the active suspension to follow the derived target vehicle height.Type: GrantFiled: August 19, 2022Date of Patent: April 2, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, FOUNDATION FOR RESEARCH AND BUSINESS SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Youngil Sohn, Min Jun Kim, Sang Woo Hwang, Sehyun Chang, Jun Ho Seong, Yong Hwan Jeong, Seong Jin Yim
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Patent number: 11948547Abstract: An active noise control system selects one reference sensor providing a reference signal with the largest coherence to a noise signal, among a plurality of available reference sensors, as a first entry of a reference sensor set. After selecting the first entry, the active noise control system repeats a process in which a sensor capable of providing the largest information quantity to a current reference sensor set among remaining sensors is selected as a new entry of a reference sensor set, until a desired number of sensors is reached or a desired control level is reached. When the reference sensor set is determined, the active noise control system utilizes the entries of the reference sensor set to generates a noise control signal suitable for canceling the noise signal.Type: GrantFiled: September 2, 2022Date of Patent: April 2, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Mun Hwan Cho, Kaang Dok Yee, Chi Sung Oh, Jung Keun You, Yun Seol Park, Yeon June Kang
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Publication number: 20240106632Abstract: A processor-implemented method with homomorphic encryption includes: receiving a first ciphertext corresponding to a first modulus; generating a second ciphertext corresponding to a second modulus by performing modulus raising on the first ciphertext; and performing bootstrapping by encoding the second ciphertext using a commutative property and an associative property of operations included in a rotation operation.Type: ApplicationFiled: November 28, 2023Publication date: March 28, 2024Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation, Industry Academic Cooperation Foundation, Chosun UniversityInventors: Jong-Seon NO, Yongwoo LEE, Young-Sik KIM
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Patent number: 11943834Abstract: An electronic apparatus is provided. The electronic device includes: a communication interface comprising communication circuitry; a memory storing information for correcting a signal received from each of a plurality of other electronic devices; and a processor connected to the memory and the communication interface and configured to control the electronic device, wherein the processor is configured to: control the communication interface to perform communication with another electronic device operating as a software enabled access point, identify another electronic device that has transmitted a signal among the plurality of other electronic devices based on the signal based on the signal being received from another electronic device through the communication interface, and correct the received signal based on correction information corresponding to another electronic device among the information stored in the memory.Type: GrantFiled: November 10, 2020Date of Patent: March 26, 2024Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB FoundationInventors: Minsoo Kim, Sungjin Shin, Kyeonghun Lee, Keuncheol Lee, Youngki Lee
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Patent number: 11943659Abstract: Provided are a terminal and a method of accessing an access point (AP) by the terminal, in a wireless communication system. The method includes determining whether to maintain access to a currently accessed radio channel, based on load information of a currently accessed AP, determining a radio channel to be accessed, based on the load information of the AP near the terminal and channel interference information, and accessing the determined radio channel.Type: GrantFiled: June 19, 2019Date of Patent: March 26, 2024Assignees: Samsung Electronics Co., Ltd, Seoul National University R&DB FoundationInventors: Mingyu Lee, Hyunseob Oh, Whasook Jeon
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Publication number: 20240091372Abstract: Described are anti-doppel antibody-drug conjugates, compositions comprising them, and related methods of treating doppel-associated diseases and conditions, including cancer.Type: ApplicationFiled: July 18, 2023Publication date: March 21, 2024Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, OSONG MEDICAL INNOVATION FOUNDATIONInventors: Youngro BYUN, Ha Kyeong LEE, Seungwoo CHUNG, Byoung Mo KIM, So-Young CHOI, Se-Ra LEE
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Publication number: 20240092345Abstract: A device and method with continuous real-time autonomous parking planning and control are disclosed. A method of training a path distribution estimation model includes: obtaining initial information including map information, departure information of an autonomous driving device, and destination information of the autonomous driving device; obtaining paths through which the autonomous driving device is movable by inputting the initial information to the path distribution estimation model which predicts the paths; and training the path distribution estimation model to output a path distribution corresponding to the paths based on the initial information.Type: ApplicationFiled: June 9, 2023Publication date: March 21, 2024Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Seho SHIN, Jaeheung PARK, Minsoo KIM, Joonwoo AHN
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Publication number: 20240095926Abstract: An optical detection system based on image segmentation according an embodiment of the present disclosure includes a pattern generator configured to select at least one region-of-interest from a target image and generate a specific pattern for controlling optical paths for the at least one region-of-interest, a light modulator configured to receive the specific pattern and selectively separate the optical paths for the at least one region-of-interest from the target image, and an optical detection unit configured to detect separated optical signals for the at least one region-of-interest based on different pixels.Type: ApplicationFiled: September 6, 2023Publication date: March 21, 2024Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Myunghwan CHOI, Seonghoon KIM
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Publication number: 20240097709Abstract: An error correction code (ECC) decoder includes a syndrome generator and a burst error corrector. The syndrome generator generates global syndrome data and local syndrome data using input data and a parity check matrix based on a constacyclic code. The burst error corrector corrects a correctable error included in the input data using the global syndrome data and the local syndrome data. The input data includes a plurality of data bits arranged along a first direction and a second direction. The ECC decoder simultaneously corrects a single burst error and a multi-bit error. The single burst error occurs on two or more symbols arranged along the first direction in the input data, and each symbol includes two or more data bits. The multi-bit error randomly occurs on two or more data bits in the input data.Type: ApplicationFiled: April 9, 2023Publication date: March 21, 2024Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB FoundationInventors: Jihwan Hyun, Chanki Kim, Jaewha Kim, Jongseon No, Junghwan Choi
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Publication number: 20240093254Abstract: The present invention relates to a method for increasing the productivity of 2?-fucosyllactose through various changes in culture medium composition and culturing on the basis of lactose, which is a substrate, wherein 2-fucosyllactose can be continuously produced in a high-yield at an optimum lactose concentration discovered by a culturing method of the present invention.Type: ApplicationFiled: October 31, 2022Publication date: March 21, 2024Applicants: Advanced Protein Technologies Corp., SEOUL NATIONAL UNIVERSITY R&DB FORNDATIONInventors: Chul Soo SHIN, Jong Won YOON, Young Ha SONG, Young Sun YOO, Jeong Su BANG, Heon Hak LEE
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Patent number: 11933955Abstract: A method of evaluating quality of graphene using a confocal laser scanning microscope, the method comprising steps of: irradiating with laser light a graphene layer formed on a catalyst layer; detecting a signal of light reflected from the graphene layer; forming a planar image of the graphene layer using the detected optical signal; and analyzing a contrast between graphene and the catalyst layer in the planar image, wherein the graphene layer is continuously formed on the catalyst layer by a roll-to-roll process.Type: GrantFiled: October 14, 2021Date of Patent: March 19, 2024Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE INC., Dankook University Cheonan Campus Industry Academic Cooperation FoundationInventors: Byung Hee Hong, Dong Jin Kim, Yun Sung Woo
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Patent number: 11936386Abstract: A clock transfer circuit includes a first stage circuit configured to produce an output signal that uses a second signaling technology from an input signal that uses a first signaling technology; and a second stage circuit configured to produce a clock signal by delaying the output signal; wherein the first stage circuit includes a semiconductor device configured to compensate for delay fluctuation caused by fluctuation of power supply voltage between a first power source and a second power source.Type: GrantFiled: April 10, 2023Date of Patent: March 19, 2024Assignees: SK hynix Inc., Seoul National University R&DB FoundationInventors: Soyeong Shin, Yongjae Lee, Jiheon Park, Deog-Kyoon Jeong
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Publication number: 20240089754Abstract: Embodiments of the present disclosure provide an active terminal detection method and an active terminal detection device that increase the performance of determining whether a terminal is active by designing a spread code to reduce a cross-correlation value of the spread code of a terminal with a high activation frequency in a massive machine-type communication environment by using deep learning.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Nam Ik KIM, Kwang Bok LEE, Byong Hyo SHIM, Dong Woo KIM
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Patent number: 11927835Abstract: The present specification provides a functional contact lens including: a lens substrate having a spherically curved surface so as to be worn on an eyeball; and a functional layer provided on at least one surface of the lens substrate and including a graphene sheet, and a method for manufacturing the same.Type: GrantFiled: August 14, 2017Date of Patent: March 12, 2024Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE INC.Inventors: Byung Hee Hong, Sangkyu Lee, Insu Jo, Sangmin Kang