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公开(公告)号：US11990924B2
公开(公告)日：2024-05-21
申请号：US17577272
申请日：2022-01-17
Inventor： Hui Dong Lee , Sunwoo Kong , Bong Hyuk Park , Seunghyun Jang , Seok Bong Hyun
CPC classification number: H04B1/04 , H03F3/19 , H03F2200/216 , H03F2200/301
Abstract: A transformer-based amplifier, an operating method thereof, and devices including the same are disclosed. A millimeter wave amplifier includes a first transformer positioned on an input side of the millimeter wave amplifier, a second transformer positioned on an output side of the millimeter wave amplifier, and one or more of amplification stages positioned between the first transformer and the second transformer.
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公开(公告)号：US11038265B2
公开(公告)日：2021-06-15
申请号：US16578203
申请日：2019-09-20
Inventor： Young Kyun Cho , Cheol Ho Kim , Bong Hyuk Park , Kwangchun Lee , Seok Bong Hyun
Abstract: A semiconductor-based beamforming antenna is provided. The beamforming antenna includes: a waveguide having a silicon medium formed between metal and forming a waveguide path; at least one diode array disposed in the waveguide, the at least one diode array being driven according to an applied electrical signal to reflect an incident signal by acting as a conductive reflecting wall; a radiator connected to the waveguide and radiating a beam corresponding to a signal reflected by the at least one diode array or an incident signal; and a feeder for supplying an electrical signal into the waveguide.
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公开(公告)号：US10461725B2
公开(公告)日：2019-10-29
申请号：US15622513
申请日：2017-06-14
Inventor： Young Kyun Cho , Cheol Ho Kim , Bong Hyuk Park , Kwangchun Lee , Jae Ho Jung , Seok Bong Hyun
Abstract: A voltage comparator comparing a voltage of a first input signal and a voltage of a second input signal is provided. The voltage comparator includes: a first switch pair transmitting, respectively, the first input signal and the second input signal to a control terminal of a first transistor and a control terminal of a second transistor in response to a clock signal; a second switch pair connecting a first terminal and a second terminal of the first transistor and connecting a first terminal and a second terminal of the second transistor in response to at least one of the clock signal and a reset signal; and a first reset switch connecting the control terminal of the first transistor and the control terminal of the second transistor in response to the reset signal.
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公开(公告)号：US20240172072A1
公开(公告)日：2024-05-23
申请号：US18517659
申请日：2023-11-22
Inventor： Soon Gi Park , Jun Sik Kim , Young Jo Ko , Seok Bong Hyun
CPC classification number: H04W36/087 , H04W36/0016 , H04W36/0058
Abstract: A method of a first distributed unit (DU) may comprise: receiving a measurement report from a user equipment (UE) through a serving (S)-master cell group (MCG) of the first DU; transmitting a first message including the measurement report to a first central unit (CU); performing a configuration operation of a target (T)-MCG between the first DU and the first CU; and transmitting configuration information of the T-MCG for the first DU to the UE, wherein the T-MCG for the first DU is configured with the UE based on the configuration information of the T-MCG.
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5.发明授权公开(公告)号：US10418898B2
公开(公告)日：2019-09-17
申请号：US16030929
申请日：2018-07-10
Inventor： Young Kyun Cho , Myung Don Kim , Seok Bong Hyun , Bong Hyuk Park , Cheol Ho Kim
Abstract: The present disclosure a switched-mode power supply using a reconfigurable delta-signal modulator (DSM). The switched-mode power supply comprises, a current sensing unit configured to determine an operation mode on the basis of a result of sensing a current of an output terminal; a compensator configured to output a compensation signal by amplifying a difference value between an output voltage and a reference voltage; a reconfigurable DSM configured to output a digital signal by noise-shaping the compensation signal; a power switch unit switched by the digital signal to output an output voltage; and an attenuator configured to supply a feedback voltage of the output voltage attenuated by a voltage divider to the compensator.
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Patent Agency Ranking
公开(公告)号：US12132266B2
公开(公告)日：2024-10-29
申请号：US17871608
申请日：2022-07-22
Inventor： Bong Hyuk Park , Sunwoo Kong , Hui Dong Lee , Seunghyun Jang , Seok Bong Hyun
CPC classification number: H01Q3/28 , H01Q9/16 , H01Q21/062
Abstract: Provided is a terahertz wideband antenna and a method for designing the same. According to various embodiments, the wideband antenna used for mobile communication in the terahertz wave communication band may include an antenna board including a first surface and a second surface opposite to the first surface, and a plurality of dipole antennas arranged on the antenna board, each of the plurality of dipole antennas may include a feeder disposed on the first surface and a radiator disposed on the second surface and physically spaced apart from the feeder, the feeder may be wire-bonded to a corresponding channel of a plurality of channels of a beam former, and the radiator may be coupled to the feeder to receive a signal from the feeder.
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公开(公告)号：US11770103B2
公开(公告)日：2023-09-26
申请号：US17665405
申请日：2022-02-04
Inventor： Sunwoo Kong , Bong Hyuk Park , Hui Dong Lee , Seunghyun Jang , Seok Bong Hyun
CPC classification number: H03D7/1441 , H03D3/009 , H03D7/1466 , H04B1/18 , H04B1/40
Abstract: A method and apparatus for input matching of a passive mixer are disclosed. The passive mixer includes a differential transistor pair including a first transistor and a second transistor, a first inductor having one end connected to the first transistor and another end connected to a ground, a second inductor having one end connected to the second transistor and another end connected to a ground, and a third inductor having one end for receiving a radio frequency (RF) signal and another end connected to a ground.
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公开(公告)号：US11855927B2
公开(公告)日：2023-12-26
申请号：US17523307
申请日：2021-11-10
Inventor： Soon Gi Park , Jun Sik Kim , Heesoo Lee , Seok Bong Hyun
IPC: H04L5/00 , H04B1/00 , H04W72/044 , H04B7/0426 , H04W72/0453 , H04W72/23
CPC classification number: H04L5/0073 , H04B1/0064 , H04B7/043 , H04W72/046 , H04W72/0453 , H04W72/23
Abstract: An operation method of a central control apparatus in a communication system may include: configuring a unit cluster using a first transceiver and a second transceiver; performing first scheduling so that at least one port among N ports of the first transceiver and M ports of the second transceiver provides communication services to a service coverage of the unit cluster for each scheduling period in a beam sweeping scheme by using a first sub-frequency band; generating first scheduling information including information on identifiers of transceivers and indexes of ports proving the communication services for each scheduling period according to the first scheduling, and transmitting the first scheduling information to the terminal; and controlling the first transceiver and the second transceiver to communicate with the terminal according to the first scheduling information.
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公开(公告)号：US20230163733A1
公开(公告)日：2023-05-25
申请号：US17939648
申请日：2022-09-07
Inventor： Sunwoo KONG , Bong Hyuk Park , Hui Dong Lee , Seunghyun Jang , Seok Bong Hyun
IPC: H03F3/193
CPC classification number: H03F3/193 , H03F2200/451 , H03F2200/09 , H03F2200/21
Abstract: Disclosed is an ultra-high frequency amplifier which includes a first conductor connected to an amplifier input terminal to receive an RF signal applied to the amplifier input terminal, a second conductor parallel to a first portion of the first conductor, a third conductor separated from the second conductor and parallel to a second portion of the first conductor, and a transistor including a gate terminal connected to one end of the second conductor, a first terminal connected to one end of the third conductor, and a second terminal connected to an amplifier output terminal, wherein the first conductor and the second conductor form a first balun to output a first balance signal based on the RF signal, the first conductor and the third conductor form a second balun to output a second balance signal based on the RF signal.
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公开(公告)号：US11611400B2
公开(公告)日：2023-03-21
申请号：US17160631
申请日：2021-01-28
Inventor： Sunwoo Kong , Kwang Seon Kim , Jeehoon Park , Hui Dong Lee , Seunghyun Jang , Seok Bong Hyun
Abstract: An array antenna system, and a calibration method and apparatus thereof are provided. The calibration method includes measuring a signal loop including mutual coupling between antennas included in an array antenna, calculating a ratio of a reception (RX) signal received by each antenna to an RX signal received by a reference antenna of the array antenna based on a result of the measuring, and performing calibration of the array antenna based on the ratio.
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