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公开(公告)号：US20240430947A1
公开(公告)日：2024-12-26
申请号：US18752623
申请日：2024-06-24
Inventor： Chanho YOON , Cheulsoon KIM , Young Jo KO , Yong Sun KIM , Kapseok CHANG
IPC: H04W74/0833 , H04L27/26
Abstract: Proposed is an apparatus and method for increasing the reach area of a random access preamble and uplink data signals in a wireless communication system. An operation method of a transmitter in a wireless communication system may include a process of generating sequences for generating a physical random preamble channel (PRACH) signal, a process of converting the sequences in a frequency domain, a process of dividing the converted sequences into frequency source blocks (RB), a process of allocating the frequency resource blocks to different spatial layers, and a process of transmitting the PRACH signal on the basis of the frequency resource blocks allocated to the spatial layers.
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公开(公告)号：US20240430404A1
公开(公告)日：2024-12-26
申请号：US18813138
申请日：2024-08-23
Inventor： Dong San JUN , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/573
Abstract: The present invention provides a method and apparatus for encoding/decoding an image to enhance inter prediction. According to the present invention, the method includes: determining a first reference picture and a second reference picture of a current block; determining both a first reference block in the first reference picture and a second reference block in the second reference picture; partitioning the current block into a plurality of sub blocks; and obtaining a prediction block of each of the sub blocks on the basis of reference candidate block index information of each of the sub blocks.
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公开(公告)号：US20240429994A1
公开(公告)日：2024-12-26
申请号：US18686374
申请日：2022-08-26
Inventor： Sung Hyun MOON , Cheul Soon KIM , Jung Hoon LEE
IPC: H04B7/06 , H04B7/0456 , H04W16/26 , H04W72/0446
Abstract: An operation method of a relay in a mobile communication system may comprise the steps of: receiving information relating to a backhaul reception beam and/or a backhaul transmission beam from a base station; receiving information relating to an access link transmission beam and/or an access link reception beam from the base station or obtaining information relating to an access link transmission beam and/or an access link reception beam from the information relating to the backhaul reception beam and/or backhaul transmission beam; communicating with the base station by using the backhaul reception beam and/or the backhaul transmission beam formed using the information relating to the backhaul reception beam and/or backhaul transmission beam; and communicating with a terminal by using the access link transmission beam and/or the access link reception beam formed using the information relating to the access link transmission beam and/or access link reception beam.
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94.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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Patent Agency Ranking
96.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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99.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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