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1.发明公开公开(公告)号：US20240136714A1
公开(公告)日：2024-04-25
申请号：US18485034
申请日：2023-10-11
Inventor： Jung Hoon OH , Jang Yeol KIM , HYUNJOON LEE , In Kui CHO
CPC classification number: H01Q7/00 , H01Q1/523 , H01Q21/00 , H04B5/0075
Abstract: Provided is a resonant multi-loop antenna circuit for magnetic field communication. The resonant multi-loop antenna circuit includes a first loop antenna and a second loop antenna arranged substantially on a same plane, and a first/a second matching circuit connected in series to the first and the second loop antenna respectively. The first matching circuit may be configured to minimize reactance of the first loop antenna and the first matching circuit connected in series to each other at a first carrier frequency, the second matching circuit may be configured to minimize the reactance of the second loop antenna and the second matching circuit connected in series to each other at a second carrier frequency, and the first loop antenna and the second loop antenna may be arranged so that a center of the first loop antenna is spaced apart from a center of the second loop antenna by a predetermined distance.
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公开(公告)号：US20210351630A1
公开(公告)日：2021-11-11
申请号：US17246244
申请日：2021-04-30
Inventor： Sang-Won KIM , Ho Jin LEE , In Kui CHO , Seong-Min KIM , Jung Ick MOON , Jang Yeol KIM , Je Hoon YUN , Jaewoo LEE , HYUNJOON LEE , Dong Won JANG
Abstract: A wireless power transmission system and method are disclosed. The wireless power transmission system includes a plurality of wireless power transmitters configured to provide power to a plurality of wireless power receivers, and a controller configured to control the wireless power transmitters based on information of the wireless power receivers. The controller is configured to receive information of a wireless power receiver from the wireless power receiver, calculate a transmission parameter associated with a transmission efficiency of power to be provided to the wireless power receiver using the information of the wireless power receiver, and provide power to the wireless power receiver through the wireless power transmitters based on the transmission parameter.
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公开(公告)号：US20240120658A1
公开(公告)日：2024-04-11
申请号：US18377009
申请日：2023-10-05
Inventor： In Kui CHO , Jang Yeol KIM , Jung Hoon OH , Hyun Joon LEE
CPC classification number: H01Q15/0013 , H01Q7/00 , H01Q15/006
Abstract: An exemplary embodiment provides a signal receiver device capable of detecting a radio communication signal with a high signal-to-noise ratio while internally canceling an environmental noise. A signal receiver device according to an exemplary embodiment includes a first signal detection element; and a second signal detection element electrically connected to the first signal detection element and provided with a blocking member for attenuating a communication signal among received RF signals. The signal receiver device is configured to output a difference between a first detection signal detected by the first signal detection element and a second detection signal detected by the second signal detection element as a detected receive signal.
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公开(公告)号：US20230275354A1
公开(公告)日：2023-08-31
申请号：US18083169
申请日：2022-12-16
Inventor： JAEHO LEE , Jang Yeol KIM , Jung Hoon OH , HYUNJOON LEE , In Kui CHO
CPC classification number: H01Q13/206 , H01Q1/48
Abstract: Provided is a microstrip array antenna including a dielectric substrate, a feed line formed on a top surface of the dielectric substrate, a plurality of radiation elements formed on the top surface of the dielectric substrate and electrically connected to the feed line, and a ground surface formed on a bottom surface of the dielectric substrate. At least one radiation element among the plurality of radiation elements may have a bottleneck shape.
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公开(公告)号：US20230135487A1
公开(公告)日：2023-05-04
申请号：US17978255
申请日：2022-11-01
Inventor： Jung Hoon OH , Jang Yeol KIM , Jae Ho LEE , Hyun Joon LEE , In Kui CHO
Abstract: An operation method of a first communication node may comprise: receiving one or more polarized radio signals transmitted from a second communication node included in the communication system through one or more receive polarized antennas included in the first communication node; performing a receive polarized antenna alignment state adjustment operation so that a detection result for a magnitude of an electric field excited by the one or more polarized radio signals is maximized; and receiving a first polarized signal transmitted from the second communication node through at least part of the one or more receive polarized antennas based on a result of the receive polarized antenna alignment state adjustment operation.
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Patent Agency Ranking
公开(公告)号：US20240039580A1
公开(公告)日：2024-02-01
申请号：US18335697
申请日：2023-06-15
Inventor： Jang Yeol KIM , Jung Hoon OH , Jaeho LEE , Hyunjoon LEE , In Kui CHO
CPC classification number: H04B5/0081 , H01F38/14 , H01F2038/143
Abstract: A magnetic signal receiving device and a magnetic field communication system are disclosed. The magnetic signal receiving device includes a signal detector including a magnetic sensor and configured to detect a magnetic signal using the magnetic sensor, a signal amplifier configured to amplify the magnetic signal detected by the signal detector, and a demodulator configured to restore the amplified magnetic signal received from the signal amplifier into an original signal.
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公开(公告)号：US20220179017A1
公开(公告)日：2022-06-09
申请号：US17538288
申请日：2021-11-30
Inventor： Hyun Joon LEE , Jang Yeol KIM , Jae Woo LEE , In Kui CHO , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: An atomic magnetometer, which operates in a communication system using a magnetic signal in a very low frequency (VLF) band, may comprise: a vapor cell comprising one or more alkaline metal atoms; a pump light source configured to provide circularly polarized pump beams to the vapor cell; an irradiation light source configured to provide linearly polarized irradiation beams to the vapor cell; a magnetic signal detecting unit configured to detect a magnetic signal by measuring a polarization rotation angle from the linearly polarized irradiation beam passing through the vapor cell; and a bias magnetic field control unit configured to control a bias magnetic field applied to the vapor cell.
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公开(公告)号：US20210109173A1
公开(公告)日：2021-04-15
申请号：US17071530
申请日：2020-10-15
Inventor： Hyunjoon LEE , In Kui CHO , Jang Yeol KIM , Jaewoo LEE , Ho Jin LEE , Sang-Won KIM , Seong-Min KIM , Jung Ick MOON , Woo Cheon PARK , Je Hoon YUN , Dong Won JANG
IPC: G01R33/26
Abstract: The atomic magnetometer includes a light source device configured to output a linearly polarized irradiation light and a circularly polarized pump light, a first vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a first transmitted light, a second vapor cell including an alkali metal atom, receiving the linearly polarized irradiation light, and outputting a second transmitted light, a magnetic field application device configured to apply a bias magnetic field in opposite directions to the first vapor cell and the second vapor cell, and a measuring device configured to obtain the magnetic field signal based on a differentiation of a first polarization rotation signal corresponding to a polarization state of the first transmitted light and a second polarization rotation signal corresponding to a polarization state of the second transmitted light.
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公开(公告)号：US20170007150A1
公开(公告)日：2017-01-12
申请号：US15090066
申请日：2016-04-04
Inventor： Soon Ik JEON , Bo Ra KIM , Jang Yeol KIM , Hyuk Je KIM , Seong Ho SON , Kwang Jae LEE , Jong Moon LEE , Hyung Do CHOI
CPC classification number: A61B5/0507 , A61B5/0073 , A61B5/4312 , A61B2562/0271
Abstract: According to the exemplary embodiment of the present invention, a microwave tomography apparatus is an apparatus which measures microwave tomograph of a subject which is inserted into a medium container including: a plurality of antennas which is located in the medium container and transmits and receives an electromagnetic wave; a plurality of transceivers which, when a radio wave signal transmitted from one of the plurality of antennas is simultaneously received by the remaining antennas of the plurality of antennas, measures intensity and phase information of the radio wave signal received from the remaining antennas; and a controller which generates an image using the values measured by the plurality of transceivers.
Abstract translation: 根据本发明的示例性实施例，微波断层摄影装置是测量被插入到介质容器中的被检体的微波断层图像的装置，包括：位于介质容器中的多个天线，并且发送和接收电磁 波; 多个收发器，当从多个天线中的其中一个天线同时接收从多个天线中的一个发送的无线电波信号时，测量从其余天线接收的无线电波信号的强度和相位信息; 以及使用由所述多个收发器测量的值来生成图像的控制器。
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公开(公告)号：US20140309528A1
公开(公告)日：2014-10-16
申请号：US14090031
申请日：2013-11-26
Inventor： Kwang Jae LEE , Soon Ik JEON , Jong Moon LEE , Jang Yeol KIM
IPC: A61B5/05
CPC classification number: A61B5/0507 , A61B5/4312 , A61B2562/0228 , A61B2562/043 , A61B2562/143 , A61B2562/168
Abstract: A sensor includes a tank filled with a matching medium, a metal body configured to surround an image object received in the tank, and a plurality of apertures disposed at constant intervals inside the metal body, wherein when any one of the plurality of apertures radiates microwaves to the image object, remaining apertures receive scattering microwaves from the image object.
Abstract translation: 传感器包括填充有匹配介质的容器，被配置为围绕容纳在容器中的图像对象的金属体以及以金属体内的恒定间隔设置的多个孔，其中当多个孔中的任何一个辐射微波时 对于图像对象，剩余的孔从图像对象接收散射微波。
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