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81.发明申请公开(公告)号：US20240429970A1
公开(公告)日：2024-12-26
申请号：US18679853
申请日：2024-05-31
Inventor： Dongho KIM , Seung Keun PARK , Sang il KWAK , Hyeyeon KWON , Dong-Uk SIM , jeongwoo HUR , seong ju KIM , Hanjun MAENG
Abstract: A signal conversion method and device for generating a modulation signal are provided. The signal conversion method includes receiving an input signal and a reflection coefficient of a reconfigurable intelligent surface (RIS) according to a sample time, selecting an optimized reflection coefficient of the RIS corresponding to the sample time, and generating the modulation signal by applying the optimized reflection coefficient of the RIS to the input signal.
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公开(公告)号：US20240429586A1
公开(公告)日：2024-12-26
申请号：US18748905
申请日：2024-06-20
Inventor： Dongwoo KANG
Abstract: Provided is a Marchand balun and a frequency multiplier including the same. The Marchand balun may include transmission lines and slot lines extending to be proximate to the transmission lines. The transmission lines may include feeding transmission lines and coupled transmission lines connected to the feeding transmission lines. The slot lines may include near-distance slot lines provided to be adjacent to the feeding transmission lines, and far-distance slot lines extending in a direction away from the near-distance slot lines. The feeding transmission lines may be provided to be adjacent to the near-distance slot lines.
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83.发明申请公开(公告)号：US20240428047A1
公开(公告)日：2024-12-26
申请号：US18422776
申请日：2024-01-25
Inventor： Kwang IL OH , Tae Wook KANG , Hyuk KIM , Jae-Jin LEE
Abstract: Disclosed is a spiking neural network circuit, which includes an axon circuit that generates first and second input spike signals, a synapse circuit that generates a first current based on the first input spike signal and a weight and generates a second current based on the second input spike signal and the weight, a capacitor that forms a first membrane voltage based on the first current, and a neuron circuit including a comparator and that resets the first membrane voltage, and after the capacitor further forms a second membrane voltage based on the second current, and the comparator includes a first input terminal and a second input terminal, receives the first membrane voltage through the first input terminal and a reference voltage through the second input terminal, generates a first spike signal based on a first comparison operation of the first membrane voltage and the reference voltage.
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公开(公告)号：US12177045B2
公开(公告)日：2024-12-24
申请号：US18126137
申请日：2023-03-24
Inventor： Seung-Woo Lee , Sang Rok Moon , Joon Ki Lee
IPC: H04L25/03 , H04L25/497
Abstract: A method of equalization for high-speed processing and an equalizer thereof are proposed. The method of equalization includes determining a filter coefficient applied to a transmitter equalizer provided with a 2-tap precoder according to an approximate channel response characteristic, generating a pre-equalization signal by removing precursor ISI of a transmission feedback signal by the precoder to which the filter coefficient is applied, so as to output the pre-equalization signal as a transmitting signal, and receiving a transmission signal and generating an equalization signal by removing postcursor ISI of the received transmission signal by a receiver equalizer provided with a feedback filter having auxiliary coefficients for compensating for a difference between an overall channel response of the transmission signal and a channel response based on the precoder.
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公开(公告)号：US12176950B2
公开(公告)日：2024-12-24
申请号：US18389942
申请日：2023-12-20
Inventor： Seung-Hyun Cho , Joon Ki Lee
IPC: H04B10/07 , H04B10/077 , H04B10/2575
Abstract: A test device and method for testing a distributed feedback laser diode (DFB-LD) device for an optical transceiver of a radio over fiber (RoF) system examines the DFB-LD device based on an absolute limiting rating, an operating case environment, and a functional specification, in which the absolute limiting rating is a rating at which there is no fatal damage to the DFB-LD device during a short period of time when each limiting parameter is isolated and all other parameters are in a normal performance parameter, the operating case environment includes an operating temperature, and the functional specification includes parameters to be tested according to an operating condition for the functional specification.
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Patent Agency Ranking
86.发明授权公开(公告)号：US12176575B2
公开(公告)日：2024-12-24
申请号：US17506174
申请日：2021-10-20
Inventor： Young-Gi Lee , Ju Young Kim , Seok Hun Kang , Kwang Man Kim , Young Sam Park , Dong Ok Shin
IPC: H01M50/451 , C09D5/02 , C09D133/02 , C09D133/06 , H01M50/403
Abstract: Provided is a method of preparing a coating composition for a separator of a secondary battery, and particularly a method including dispersing a first monomer and a surfactant in a solvent to form micelles, adding a first initiator to the solvent and performing first polymerization reaction to form a precursor solution including an emulsion-type binder, and adding a second monomer and a second initiator to the precursor solution and performing second polymerization reaction to form an aqueous binder solution including a solution-type binder, wherein the emulsion-type binder has a core shape, the solution-type binder has a shell shape wrapping the emulsion-type binder, and the emulsion-type binder and the solution-type binder are chemically bonded.
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公开(公告)号：US20240421985A1
公开(公告)日：2024-12-19
申请号：US18378295
申请日：2023-10-10
Inventor： O-Sung KWON , Jin-Gak JANG , Haeng-Seok KO , Dae-Sung KWON , Youn-Chang JEONG , Se-Wan JI , Seok KIM , Chang-Ho HONG
IPC: H04L9/08
Abstract: Disclosed herein is a quantum key distribution apparatus. The quantum key distribution apparatus includes an optical pulse in which information for private key generation is included is transmitted to multiple receivers, respectively, through different communication paths, and the optical pulse is generated at a speed higher than an optical pulse measurement speed of each of the multiple receivers by a multiple of a number of multiple receivers.
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公开(公告)号：US20240418694A1
公开(公告)日：2024-12-19
申请号：US18741515
申请日：2024-06-12
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Korea Advanced Institute Of Science And Technology
Inventor： JAE JOON KIM , Seongjun PARK , Chan Woo PARK , Sungha JEON , Min-Soo CHOI , Ji-won HONG , Kiwook HWANG
Abstract: Disclosed is an electrical plant monitoring device which includes a plurality of flexible electrodes that are attached to a plate-shaped tissue and a tubular tissue of a plant, an impedance measurement unit that obtains electrical signals by using the plurality of flexible electrodes and measures impedance values associated with the plate-shaped tissue and the tubular tissue based on the electrical signals, and a spectrum monitor that generates an impedance spectrum based on the impedance values and monitors the impedance spectrum to sense an ion stress of the plant.
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公开(公告)号：US12167923B2
公开(公告)日：2024-12-17
申请号：US17861841
申请日：2022-07-11
Inventor： Sunghoon Choi , Yoon-Ho Song , Jin-Woo Jeong , Sora Park
Abstract: Provided is a backscattered X-ray image device based on multi-sources. The backscattered X-ray image device includes an X-ray tube array configured to generate X-rays, first slit plates provided on the X-ray tube array and having a first slit through which the X-rays pass, second slit plates provided on the first slit plates and having second slits defined in a direction different from that of the first slit, and detectors provided on the second slit plates and having a narrow gap in the same direction as the first slit, the detectors being configured to detect a backscattered beam that is emitted from a subject receiving the X-rays.
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90.发明申请公开(公告)号：US20240407843A1
公开(公告)日：2024-12-12
申请号：US18736929
申请日：2024-06-07
Inventor： Won Young SONG , Kwang Jae Lee , Soon Ik Jeon
IPC: A61B18/18
Abstract: A method and an apparatus for focusing radio wave energy are disclosed. According to an embodiment of a present disclosure, a method for focusing radio wave energy includes obtaining one or more internal tomographic images of a subject. The method also includes converting the one or more internal tomographic images into one or more numerical models. The method also includes calculating one or more first focusing parameters. The method also includes obtaining an image of the subject by monitoring the subject. The method also includes determining whether a second focusing parameter exists among the one or more first focusing parameters. The method also includes determining a final focusing parameter. The method also includes irradiating a lesion existing inside the subject with the radio wave energy using the final focusing parameter.
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