Patents by Inventor Seong Cheol Kim
Seong Cheol Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240157803Abstract: A fuel cell vehicle includes a fuel cell stack and a battery; an air compressor that supplies air to the fuel cell stack and is able to generate power during regenerative braking; a drive motor that provides driving force to a vehicle and is able to generate power during the regenerative braking; and a controller that controls operation of the air compressor so that a sum of power generation of the fuel cell stack and power generation of the regenerative braking of the air compressor and drive motor is close to a chargeable amount of the battery.Type: ApplicationFiled: April 17, 2023Publication date: May 16, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Joo Yeon KIM, Seong Cheol JEONG, Sung Do KIM, Chang Seok YOU
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Publication number: 20240149697Abstract: A fuel cell vehicle includes a fuel cell stack and a battery, a drive motor configured to drive the vehicle through electrical energy of the fuel cell stack or the battery and to generate electric power through regenerative braking during braking, and a controller configured to set a limit of a regenerative braking output of a drive motor upon braking of the vehicle, taking into consideration a driving environment factor in an exterior of the vehicle, a vehicle manipulation factor of a vehicle driver, and a vehicle driving factor as to a driving state of a vehicle part including the fuel cell stack and the battery.Type: ApplicationFiled: July 7, 2023Publication date: May 9, 2024Inventors: Seong Cheol Jeong, Jae Ok Ha, Mi Ji Kim
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Patent number: 11979488Abstract: A method for generating a key stream according to an embodiment includes generating r round keys that are each N-dimensional integer vectors including elements of an integer set defined based on a prime number t, based on a random bit string, an encryption counter, and a secret key that is an N-dimensional integer vector consisting of elements of the integer set , generating a first round output vector x1 by performing a modular addition operation on an initial vector and a first round key RK1 of the r round keys with the prime number t as a modulus, and generating a key stream that is an N-dimensional integer vector consisting of elements of the integer set from the first round output vector x1 by using a second to r-th round keys of the r round keys, and one or more first round functions and a second round function.Type: GrantFiled: October 29, 2021Date of Patent: May 7, 2024Assignees: Samsung SDS Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Joo Hee Lee, Duk Jae Moon, Hyo Jin Yoon, Ji Hoon Cho, Seong Kwang Kim, Joo Young Lee, Jin Cheol Ha
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Publication number: 20240135595Abstract: The present invention relates to a method and apparatus for encoding a displacement video using image tiling. A method for encoding multi-dimensional data according to an embodiment of the present disclosure may comprise: converting the multi-dimensional data into one or more frames with two-dimensional characteristics; generating one or more frame groups by grouping the one or more frames with pre-configured number units; reconstructing frames belonging to each frame group into a tiled frame; and generating a bitstream by encoding the tiled frame. Here, the tiled frame may be constructed with one or more blocks, and each block may be constructed by rearranging pixels existing at the same location in the frames.Type: ApplicationFiled: October 17, 2023Publication date: April 25, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Da Yun NAM, Hyun Cheol KIM, Jeong Il SEO, Seong Yong LIM, Chae Eun RHEE, Gwang Cheol RYU, Yong Wook SEO, Hyun Min JUNG
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Publication number: 20240119874Abstract: Disclosed are a source driver and a method of detecting crack of a display panel. A source driver may comprise a first circuit configured to apply first data to data lines connected to sub-pixels of a display panel to charge a first driving voltage; and a second circuit formed on the display panel that applies the first driving voltage to a detection line formed on the display panel to detect the presence of cracks in the display panel based on the illumination status of the sub-pixels, wherein the detection line includes a first detection node and a second detection node formed on one side of the display panel along its extension direction, wherein the first detection node is connected to data lines of the first and third sub-pixels, and wherein the second detection node is connected to data line of the second sub-pixel.Type: ApplicationFiled: October 4, 2023Publication date: April 11, 2024Applicant: LX SEMICON CO., LTD.Inventors: Byeon Cheol LEE, Seong Geon KIM, Won KIM, Tai Ming PIAO, Young Ho SHIN
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Patent number: 11953066Abstract: The present disclosure relates to a brake disc including a braking part having a circular plate shape having a hollow portion and a plurality of coupling portions protruding and extending from an inner diameter surface thereof, and a hat part disposed in the hollow portion and having a plurality of insertion portions protruding laterally, in which the plurality of coupling portions is respectively coupled to the plurality of insertion portions, and the coupling portion of the braking part and the insertion portion of the hat part are joined to only one of an outboard portion or an inboard portion of the braking part. According to the present disclosure, it is possible to reduce noise occurring at a position at which the hat part and the braking part are coupled to each other and improve cooling performance.Type: GrantFiled: April 1, 2022Date of Patent: April 9, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOHAN INDUSTRY CO., LTD.Inventors: Yoon-Cheol Kim, Kyung-Rok Choi, Sang-Bum Koh, Seong-Kweon Joo, Ki-Jeong Kim, Jae-Seok Lee
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Publication number: 20240078799Abstract: An exemplary embodiment provides an intruder detection method capable of accurately detecting an intruder and estimating an abnormal behavior of the intruder even when viewpoints of acquired images are different from each other. An intruder detection method is suitable for being performed by an intruder detection device for detecting an intruder based on images and includes: receiving input images acquired by multiple cameras; extracting feature maps associated with a plurality of viewpoints by applying the input images to a plurality of convolutional neural networks provided separately for the plurality of viewpoints of the images; and detecting the intruder based on the feature maps associated with the plurality of viewpoints.Type: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: Young Il KIM, Seong Hee PARK, Geon Min YEO, Il Woo LEE, Wun Cheol JEONG, Tae Wook HEO
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Publication number: 20240068460Abstract: A variable displacement swash plate type compressor control method and a variable displacement swash plate type compressor controlled thereby may include a first determination step of determining whether liquid refrigerant exists within the variable displacement swash plate type compressor; a first operation step of applying power to the field coil assembly and of not applying current to the electronic control valve, when it is determined in the first determination step S1 that the liquid refrigerant exists; a second determination step of comparing an elapsed period of time of operating in the first operation step with a predetermined reference time; and a second operation step of maintaining the power applied in the first operation step to the field coil assembly and applying current to the electronic control valve when the elapsed period of time is greater than or equal to the reference time.Type: ApplicationFiled: July 13, 2022Publication date: February 29, 2024Inventors: Hyung In Choi, Seong Gyu Gong, Young Min Kim, Eun Gi Son, Joo Young Lee, Soo Cheol Jeong
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Patent number: 11892558Abstract: A method and an apparatus for estimating direction of arrival of radar reception signal using antenna array extrapolation. Obtained is a transformation matrix representing a relationship between phases of reception signals received through ith to (N?2+i)th antennas and a phase of a reception signal received through (N?1+i)th antenna in a ULA antenna unit including N actual antennas. A phase of a virtual reception signal received through a new (N+i)th virtual antenna is generated by multiplying values corresponding to phases of the reception signals received through (i+1)th to (N?1+i)th antennas by the transformation matrix. A magnitude of the virtual reception signal received through the (N+i)th virtual antenna is obtained by averaging magnitudes of the reception signals received through ith to (N?1+i)th antennas.Type: GrantFiled: May 9, 2018Date of Patent: February 6, 2024Assignee: Seoul National University R&DB FoundationInventors: Seong-Cheol Kim, Seong-Wook Lee, Heon-Kyo Sim
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Publication number: 20240019567Abstract: An operating method of a server for calculating a position of a measurement target includes receiving first measurement information including a result of measuring the measurement target by a first electronic device, receiving second measurement information including a result of measuring the measurement target by a second electronic device, and calculating the position of the measurement target based on the first measurement information and the second measurement information.Type: ApplicationFiled: July 7, 2023Publication date: January 18, 2024Applicants: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Seong-Hwan HYUN, Seong-Cheol KIM, Jihye KIM
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Publication number: 20230399489Abstract: Proposed is a heat stabilizer for polymer processing, the heat stabilizer being represented by Aw(PO4)x(HPO4)yXz·nH2O, having excellent thermal stability capable of preventing discoloration of a polymer when processing a polymer such as PVC, and being applicable to various polymers aside from PVC. In addition, the present disclosure provides an effective method of preparing a heat stabilizer preventing discoloration when processing a polymer by the following method: lowering the crystallinity of a metal phosphate by replacing with various metal cations, changing the type and content of anion, and using various dispersants serving as ligands; or reducing the particle size by adjusting the pH using a strong base and by performing a rapid synthesis process.Type: ApplicationFiled: October 13, 2021Publication date: December 14, 2023Inventors: Seong Cheol KIM, Periyasamy THIRUKUMARAN
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Patent number: 11771159Abstract: Disclosed are modularized garment manufacturing method and system for small quantity batch production of garments. Basic components constituting an ordered garment are generated by analyzing shape graphic data of the ordered garment. For each basic component, basic patterns are generated for each dimension of the ordered garment. The basic patterns are compared with reference garment patterns stored in a garment pattern database to determine a pattern category of each basic pattern. Based on the pattern category of the basic patterns and information on garment production lines currently in operation, subdivided work modules are determined for each basic pattern.Type: GrantFiled: February 13, 2019Date of Patent: October 3, 2023Assignees: Hojeon Limited, Seoul National University R&DB FoundationInventors: Young Chul Park, Sung Hoon Ahn, Eun Suk Suh, Sung Min Kim, Seong Cheol Kim, Woo Kyun Jung
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Patent number: 11636717Abstract: An allophone inspection device and inspection method thereof are provided. An allophone inspection device includes an array microphone unit in which a plurality of array microphones are disposed at predetermined intervals, and a controller configured to build reference data by quantifying analyzed allophone by collecting sound signals generated from surrounding based on a position where the array microphone unit is installed in advance and measure a surrounding sound signal through the array microphone unit to estimate whether or not noise is generated and a position of the sound source where the noise is generated based on the reference data.Type: GrantFiled: November 3, 2020Date of Patent: April 25, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Sung Wook Lee, Seong-Cheol Kim, Joo Hyun Park, Byeong-Ho Lee, Wanjei Cho
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Publication number: 20230045798Abstract: A method for predicting a structure of an indoor space using radio propagation channel analysis through deep-learning is disclosed. Channel data of radio signals are collected for various indoor spaces, and radio channel parameter data such as PDP, AoA, and AoD are extracted therefrom. A large amount of propagation channel parameter data is input to an artificial neural network together with vertex coordinate data of the corresponding indoor space and deep-learning is performed in advance. The propagation channel parameter data are extracted from the indoor space to be predicted, the best matching indoor space is detected based on the trained artificial neural network. The best matching indoor space is predicted as the structure of the indoor space.Type: ApplicationFiled: April 30, 2018Publication date: February 16, 2023Applicant: Seoul National University R&DB FoundationInventors: Seong-Cheol KIM, Jung-Yong LEE
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Publication number: 20220001156Abstract: The present disclosure relates to a peritoneal cavity-bladder connecting catheter for ascites drainage. The peritoneal cavity-bladder connecting catheter for ascites drainage includes a peritoneal cavity position part positioned on the side of a peritoneal cavity by passing through a bladder wall located between the peritoneal cavity and a bladder, the peritoneal cavity position part having inlets through which ascites flow into an inner space and being formed as a film that surrounds the inner space, and a bladder position part integrally formed with the peritoneal cavity position part and positioned on the side of the bladder located on the side of the bladder wall opposite to the peritoneal cavity, the bladder position part having outlets through ascites flowed into the peritoneal cavity position part are discharged to outside, and being configured to form a closed inner space together with the peritoneal cavity position part.Type: ApplicationFiled: October 24, 2019Publication date: January 6, 2022Inventors: IL HWAN KIM, Myeong Ju KANG, Bong Su PARK, Si Hyung PARK, Yu Jin LEE, Jin Han PARK, Jae Ha LEE, Kang Min PARK, Seong Cheol KIM, Jae Seung JUNG, So Yeong JUNG
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Publication number: 20210327174Abstract: An allophone inspection device and inspection method thereof are provided. An allophone inspection device includes an array microphone unit in which a plurality of array microphones are disposed at predetermined intervals, and a controller configured to build reference data by quantifying analyzed allophone by collecting sound signals generated from surrounding based on a position where the array microphone unit is installed in advance and measure a surrounding sound signal through the array microphone unit to estimate whether or not noise is generated and a position of the sound source where the noise is generated based on the reference data.Type: ApplicationFiled: November 3, 2020Publication date: October 21, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Seoul National University R&DB FoundationInventors: Sung Wook LEE, Seong-Cheol KIM, Joo Hyun PARK, Byeong-ho LEE, Wanjei CHO
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Publication number: 20210080542Abstract: A method and an apparatus for estimating direction of arrival of radar reception signal using antenna array extrapolation. Obtained is a transformation matrix representing a relationship between phases of reception signals received through ith to (N?2+i)th antennas and a phase of a reception signal received through (N?1+i)th antenna in a ULA antenna unit including N actual antennas. A phase of a virtual reception signal received through a new (N+i)th virtual antenna is generated by multiplying values corresponding to phases of the reception signals received through (i+1)th to (N?1+i)th antennas by the transformation matrix. A magnitude of the virtual reception signal received through the (N+i)th virtual antenna is obtained by averaging magnitudes of the reception signals received through ith to (N?1+i)th antennas.Type: ApplicationFiled: May 9, 2018Publication date: March 18, 2021Applicant: Seoul National University R&DB FoundationInventors: Seong-Cheol KIM, Seong-Wook LEE, Heon-Kyo SIM
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Publication number: 20200397081Abstract: Disclosed are modularized garment manufacturing method and system for small quantity batch production of garments. Basic components constituting an ordered garment are generated by analyzing shape graphic data of the ordered garment. For each basic component, basic patterns are generated for each dimension of the ordered garment. The basic patterns are compared with reference garment patterns stored in a garment pattern database to determine a pattern category of each basic pattern. Based on the pattern category of the basic patterns and information on garment production lines currently in operation, subdivided work modules are determined for each basic pattern.Type: ApplicationFiled: February 13, 2019Publication date: December 24, 2020Applicants: Hojeon Limited, Seoul National University R&DB FoundationInventors: Young Chul PARK, Sung Hoon AHN, Eun Suk SUH, Sung Min KIM, Seong Cheol KIM, Woo Kyun JUNG
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Patent number: 10784706Abstract: A wireless power transmitter configured to wirelessly transmit power to an electronic device is provided.Type: GrantFiled: May 11, 2018Date of Patent: September 22, 2020Assignees: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Chong-Min Lee, Seong-Cheol Kim, Dae-Hyun Kim, Sang-Wook Lee, Young-Ho Ryu, Byeong-Ho Lee, Seong-Wook Lee, Young-Jun Yoon
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Patent number: 10749132Abstract: The present specification provides an electrode laminate including a substrate, an electrode provided on the substrate, and an auxiliary electrode electrically connecting to the electrode and has a laminated structure of a first layer having reflectivity of 80% or greater at a wavelength of 550 nm and a second layer having a higher etching rate compared to the first layer, wherein the auxiliary electrode is either provided between the electrode and the substrate, or provided so that the first layer of the auxiliary electrode adjoins at least part of the side surface of the electrode, and an organic light emitting device including the electrode laminate.Type: GrantFiled: June 21, 2019Date of Patent: August 18, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Jin Ha Hwang, Seongsu Jang, Young Eun Kim, Seong Cheol Kim, Sung Soo Park, Kwang Myung Seo