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81.发明申请公开(公告)号：US20240396771A1
公开(公告)日：2024-11-28
申请号：US18419570
申请日：2024-01-23
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Won Young Lee , Young Min Lee
Abstract: Proposed is a device for receiving a four-level pulse amplitude modulation (PAM-4) signal, which includes a first comparator for comparing a received PAM-4 signal with a predetermined threshold voltage to output a most significant bit (MSB) signal; and a second comparator for comparing the differential signal difference between the positive signal and negative signal of the received PAM-4 signal with a reference voltage to output a least significant bit (LSB) signal.
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公开(公告)号：US20240309512A1
公开(公告)日：2024-09-19
申请号：US18406305
申请日：2024-01-08
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Hyung Jun KOO , Ji Hye KIM
CPC classification number: C23C28/021 , C23C14/20 , C23C14/24 , C23C14/58 , C23C24/04
Abstract: A method of manufacturing a liquid metal film using an imbibition phenomenon is provided. The method includes forming a microstructure on a polymer substrate, preparing a microstructured metal substrate by depositing a metal on the polymer substrate on which the microstructure is formed, and coating the microstructured metal substrate with a liquid metal.
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83.发明公开公开(公告)号：US20240214205A1
公开(公告)日：2024-06-27
申请号：US18166828
申请日：2023-02-09
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Hyun KIM , Jong Ho LEE
CPC classification number: H04L9/3213 , G06T5/10 , G06T7/11
Abstract: According to various embodiment of the present disclosure, an electronic device for performing token pruning in a frequency domain may include a processor, and the processor may configured to divide an image frame into a plurality of patches, convert tokens based on the plurality of patches from a spatial domain to a frequency domain through a fast Fourier transform (FFT)-based frequency domain conversion algorithm, the tokens being output from a predetermined transformer block among a plurality of transformer blocks, after performing patch embedding on the plurality of patches, and convert the remaining tokens other than specific tokens from the frequency domain to the spatial domain, after pruning specific tokens from the tokens based on frequency information of the tokens converted into the frequency domain. Various other embodiments are also possible.
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84.发明公开公开(公告)号：US20240051411A1
公开(公告)日：2024-02-15
申请号：US18054759
申请日：2022-11-11
Applicant: Kia Corporation , Hyundai Motor Company , Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： In Yong Yeo , Youn Sik Lee , Se Wan Choi
CPC classification number: B60L53/20 , B60L58/18 , H02J7/342 , H02M3/158 , H01M10/425 , H01M10/44 , B60L2210/12 , H02J2207/20 , H01M2010/4271 , H01M2220/20
Abstract: In an embodiment, a power conversion system includes: an on-board charger; a main battery configured to be recharged with power and to supply the recharged power to a motor, thereby supplying rotation force to a wheel of a vehicle; an auxiliary battery configured to recharge the main battery or to assist a power supply function of the main battery; and a power converter connected to the auxiliary battery, the power converter comprising a bypass circuit and a buck switch. A part of the on-board charger and the power converter constitute a DC-DC converter, and the buck switch is configured to be repeatedly switched on and off when a voltage of the auxiliary battery is higher than a voltage of the main battery, and does not operate when the voltage of the auxiliary battery is not higher than the voltage of the main battery.
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85.发明授权公开(公告)号：US11792392B2
公开(公告)日：2023-10-17
申请号：US17717073
申请日：2022-04-09
Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Juhyung Son , Fathan Adi Pranaya , Jinsam Kwak , Jihoon Yun
IPC: H04N19/105 , H04N19/103 , H04N19/167 , H04N19/176 , H04N19/52 , H04N19/597 , H04N19/40 , H04N19/70 , H04N13/332 , G06F3/01
CPC classification number: H04N19/105 , H04N19/103 , H04N19/167 , H04N19/176 , H04N19/52 , H04N19/597 , G06F3/012 , H04N13/332 , H04N19/40 , H04N19/70
Abstract: An encoding acceleration method of cloud VR (virtual reality) video, the method comprising: constructing a reference frame candidate for encoding of a current frame; selecting a specific reference frame among the reference frame candidate based on a sensor data of IMU (Inertial Measurement Unit); selecting a prediction mode for encoding the current frame based on information included in the specific reference frame; and encoding the current frame based on the selected prediction mode.
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Patent Agency Ranking
公开(公告)号：US20230246555A1
公开(公告)日：2023-08-03
申请号：US18007741
申请日：2021-02-02
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Sewan CHOI , Gi Bum YU
CPC classification number: H02M3/33573 , H02M3/01 , H02M1/08 , H02J7/0013 , H02J7/02 , H02J2207/20
Abstract: Disclosed is a unitary charging device for low and high voltages. According to a specific embodiment, one leg of a switching element of an insulated DC-DC converter, the secondary side of a high voltage transformer, and the primary side of a low voltage transformer are shared, and thus the number of switching elements of the charging device and gate drivers for operating the multiple switching elements can be reduced, reliability is improved, and the performance of the unitary charging device can improve even when the number of switching elements is reduced. Due to the shared use of an EMI filter and an input capacitor of a high voltage battery, not only can the price and volume of the charging device be decreased, but conduction loss and switching loss can also be reduced to increase efficiency.
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公开(公告)号：US11683460B2
公开(公告)日：2023-06-20
申请号：US17494808
申请日：2021-10-05
Applicant: FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Ji Hoon Yun
IPC: H04N13/00 , H04N13/111 , H04N13/264 , H04N13/156 , H04N13/194 , H04N13/279
CPC classification number: H04N13/111 , H04N13/156 , H04N13/194 , H04N13/264 , H04N13/279 , H04N2013/0085
Abstract: Provided is a method for creating a virtual reality content, storing the virtual reality content in a transmission buffer, and after that, managing the transmission buffer. A server creates the virtual reality content based on user's motion information, stores the virtual reality content in the transmission buffer and is allowed to modify the virtual reality content stored in the transmission buffer based on subsequently received user's motion information, so that the most recent user's motion information can be appropriately reflected in the virtual reality content. It is possible to provide a more immersive virtual reality service.
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公开(公告)号：US11656154B2
公开(公告)日：2023-05-23
申请号：US17473369
申请日：2021-09-13
Applicant: Hyundai Motor Company , Kia Corporation , Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Young Sam Yoon , Ji Su Park , Ki Ho Yum , Sung Dae Kim , Kyu Ho Sim
Abstract: A method of matching a wheel and a tire includes steps of: measuring inner runout and outer runout of a wheel; extracting and setting a primary component of a measurement waveform of the inner runout as an inner runout waveform and extracting and setting a primary component of a measurement waveform of the outer runout as an outer runout waveform; comparing an inner minimum value that is a minimum value of the inner runout waveform and an outer minimum value that is the minimum value of the outer runout waveform with a predetermined runout reference value; and determining an assembly reference position of the wheel based on the inner minimum value or the outer minimum value or based on a resultant waveform of the inner runout waveform and the outer runout waveform, depending on a result of the comparing step.
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公开(公告)号：US20230133228A1
公开(公告)日：2023-05-04
申请号：US17581924
申请日：2022-01-23
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Dong Ho KIM , Ji Won KIM , Soo Hyun JEON
Abstract: A system and method for delivering moving route prediction-based content is provided, in terms of a server, as a user terminal allows producing an image at the future time point, at the user's final position, which is predicted, based on a total delay time of a network, rather than producing images at every time point, it is possible to reduce the data amount required for creating the content, and as the image produced at the user's final position according to the user moving route is stored in the buffer, it is possible to provide smooth content service without delay. In addition, the user may experience virtual reality as a 360° image suitable for the user's moving position from the user's point of view is played through a HMD of the user terminal S1, and the user may also use a lively content by making the 360° image stereoscopic.
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公开(公告)号：US20230111054A1
公开(公告)日：2023-04-13
申请号：US17963117
申请日：2022-10-10
Applicant: Foundation for Research and Business, Seoul National University of Science and Technology
Inventor： Keun PARK , Junwon LEE
Abstract: Provided is a cooling module to which a microporous cooling structure is applied, and a method of locally and conformally cooling a mold using the same. The cooling module to which a microporous cooling structure is applied which is installed at each high temperature region inside a mold core and allows supplied cooling fluid to flow thereinto to perform local and conformal cooling on a mold may include a body part inserted into the mold core, a microporous cooling structure which is inserted into an upper portion of the body part and in which micro unit cells are periodically and repeatedly formed to form a plurality of connected hollow portions, and a cooling channel including a conduit configured to pass the cooling fluid through the microporous cooling structure.
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