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公开(公告)号：US20220394854A1
公开(公告)日：2022-12-08
申请号：US17826327
申请日：2022-05-27
Inventor： Jung Ick MOON , Gwangzeen KO , Sang-Won KIM , Seong-Min KIM , Woo Jin BYUN , Je Hoon YUN , In Kui CHO
Abstract: A method and system for manufacturing a coil for wireless charging are disclosed herein. The method may include manufacturing a printed circuit board, generating a coil-shaped metal pattern on the printed circuit board, and generating an additional metal pattern on the top of the metal pattern using a 3D metal printer.
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公开(公告)号：US20220131417A1
公开(公告)日：2022-04-28
申请号：US17509277
申请日：2021-10-25
Inventor： Je Hoon YUN , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Woo Jin BYUN , Dong Won JANG , In Kui CHO
Abstract: A wireless power transmitting device includes: an upper coil including a first conical coil and a first spiral coil disposed beneath the first conical coil; a lower coil including a second spiral coil disposed to face the first spiral coil and a second conical coil disposed beneath the second spiral coil; a connecting stub configured to connect the upper coil and the lower coil to each other; and a power source configured to supply a power to the upper coil or the lower coil. The first spiral coil and the second spiral coil generate an electric field and a magnetic field in a resonance state to transfer at least some of the power from the power source to an external wireless power receiving device through the electric field and the magnetic field.
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3.发明申请RECEPTION APPARATUS OF MULTI INPUT MULTI OUTPUT SYSTEM AND RECEPTION SIGNAL PROCESSING METHOD 有权多输入多输出系统和接收信号处理方法的接收装置公开(公告)号：US20170054487A1
公开(公告)日：2017-02-23
申请号：US15220707
申请日：2016-07-27
Inventor： Mi Kyung SUK , Bong Su KIM , Min Soo KANG , Kwang Seon KIM , Woo Jin BYUN , Young Seung LEE
CPC classification number: H04L25/02 , H04B7/0413 , H04L25/0206 , H04L25/0214 , H04L25/03331
Abstract: The present invention relates to a reception apparatus. The reception apparatus includes a plurality of reception antennas; and a signal processing unit configured to use reception characteristic of the plurality of reception antennas, wherein the signal processing unit comprises a channel estimation unit configured to respectively estimate a channel response matrix of each signal received via the plurality of reception antennas, and a coding unit configured to define a coding matrix based on an inverse matrix of the estimated channel response matrix, and to obtain a final output signal corresponding to each reception antenna by applying the coding matrix to each received signal.
Abstract translation: 本发明涉及一种接收装置。 接收装置包括多个接收天线; 以及信号处理单元，被配置为使用所述多个接收天线的接收特性，其中所述信号处理单元包括：信道估计单元，被配置为分别估计经由所述多个接收天线接收的每个信号的信道响应矩阵;以及编码单元 被配置为基于估计的信道响应矩阵的逆矩阵来定义编码矩阵，并且通过将编码矩阵应用于每个接收信号来获得与每个接收天线相对应的最终输出信号。
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公开(公告)号：US20150138657A1
公开(公告)日：2015-05-21
申请号：US14549299
申请日：2014-11-20
Inventor： Woo Jin BYUN , Yong Heui CHO , Kwang Seon KIM , Bong Su KIM , Min Soo KANG , Jong Soo LIM
IPC: G02B5/08
Abstract: The disclosure provides an antenna apparatus. Disclosed is an antenna apparatus comprising a power feeding unit receiving an electromagnetic wave from a transmitter and providing the received electromagnetic wave to the antenna apparatus, a sub reflector generating an OAM (Orbital Angular Momentum) mode electromagnetic wave, and a main reflector reflecting the generated OAM mode electromagnetic wave to a far field region.
Abstract translation: 本公开提供一种天线装置。 公开了一种天线装置，包括：馈电单元，接收来自发射机的电磁波，并将接收到的电磁波提供给天线装置，产生OAM（轨道角动量）模式电磁波的副反射器，以及反射所产生的 OAM模式电磁波到远场区域。
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公开(公告)号：US20230030303A1
公开(公告)日：2023-02-02
申请号：US17698632
申请日：2022-03-18
Inventor： Gwangzeen KO , Jung Ick MOON , Sang-Won KIM , Seong-Min KIM , In Kui CHO , Woo Jin BYUN , Je Hoon YUN
Abstract: An image processing-based foreign substance detection method in a wireless charging system and a device performing the method are disclosed. A method for detecting a foreign substance according to an example embodiment includes an operation of acquiring an image of a charging area of a wireless charging system, an operation of detecting, based on an RGB value of a frame of the image, a foreign substance in the charging area, an operation of discriminating a type of the foreign substance, and an operation of performing power control of the wireless charging system according to the type of the foreign substance.
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Patent Agency Ranking
公开(公告)号：US20190253135A1
公开(公告)日：2019-08-15
申请号：US16203394
申请日：2018-11-28
Applicant: Electronics and Telecommunications Research Institute , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Byung Jang JEONG , Woo Jin BYUN , Ji-Hoon YUN , Jae-Han LIM , Wisnu MURTI
IPC: H04B7/22 , H04L1/00 , H04B7/0456 , H04B7/08
CPC classification number: H04B7/22 , H04B7/0473 , H04B7/0805 , H04L1/0003
Abstract: Disclosed are a communication method and communication apparatus using an ambient backscatter communication. A transmission apparatus may include generating a plurality of bitsets by fragmenting data based on a predetermined bitset length, mapping the plurality of bitsets to a plurality of switching patterns based on a data size, and controlling a reflection of a background radio frequency (RF) signal based on a corresponding mapped switching pattern, a total number of the plurality of switching patterns may be determined based on the bitset length, and each of the plurality of switching patterns may have a different length.
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公开(公告)号：US20170194992A1
公开(公告)日：2017-07-06
申请号：US15188045
申请日：2016-06-21
Inventor： Bong Su KIM , Min Soo KANG , Kwang Seon KIM , Woo Jin BYUN , Myung Sun SONG
CPC classification number: H04B1/10 , H04B1/18 , H04B7/0413 , H04B7/0452 , H04B7/08 , H04B7/0848
Abstract: Provided are a multi-input multi-output system which overcomes a disadvantage that optimal receiving performance cannot be maintained according to an installation environment and a performance change of a receiver when a receiving module is configured by using a fixed attenuator and a fixed phase in a line-of-sight multi-input multi-output system configuration and analogously controls an interference removing module of a receiver including a variable attenuator and a phase shifter which are controllable to enhance a receiving performance and increase frequency efficiency, in order to maximize a signal-to-interference ratio of each path and an operating method thereof.
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公开(公告)号：US20150357709A1
公开(公告)日：2015-12-10
申请号：US14724320
申请日：2015-05-28
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
Inventor： Kwang Seon KIM , Sun Soo OH , Woo Jin BYUN , Min Soo KANG , Bong Su KIM
IPC: H01Q3/24
CPC classification number: H01Q21/065
Abstract: Disclosed is a circular array antenna. The circular array antenna includes: an input/output unit receiving electromagnetic waves from a transmitter and distributing the received electromagnetic waves to the antenna; a primary feeder connected with the input/output unit and placed at the center of the circular array antenna; a plurality of secondary feeders radially connected to the primary feeder; a plurality of patch units connected to the respective secondary feeders to generate an electric field radially; and a plurality of length controllers formed at terminals of the respective secondary feeders in a direction to extend the lengths of the respective secondary feeders, of which the lengths are controllable.
Abstract translation: 公开了一种圆形阵列天线。 圆形阵列天线包括：输入/输出单元，其接收来自发射机的电磁波并将接收的电磁波分配到天线; 与输入/输出单元连接并放置在圆形阵列天线的中心的主馈线; 多个次级进料器径向连接到主进料器; 多个贴片单元连接到相应的二次馈线以径向产生电场; 以及多个长度控制器，其形成在相应的二次进料器的端子处，以延伸相应的二次进料器的长度的方向，其长度是可控的。
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公开(公告)号：US20150146803A1
公开(公告)日：2015-05-28
申请号：US14547243
申请日：2014-11-19
Inventor： Kwang Seon KIM , Min Soo KANG , Bong Su KIM , Woo Jin BYUN , Jong Soo LIM , Myung Sun SONG , Jae Ick CHOI
CPC classification number: H04L25/0204 , H04B7/0413 , H04B7/0604 , H04L1/0002 , H04L1/0011 , H04L1/06 , H04L5/0023 , H04L25/00 , H04L27/0008 , H04L27/34
Abstract: Disclosed are a wireless communication method of improving frequency efficiency based on a channel function in a wireless communication system and an apparatus thereof. The wireless communication system using a digital modulation scheme, includes: a transmitting apparatus which modulates a data signal to generate a modulation symbol, generates a channel symbol function corresponding to the modulation symbol, combines the modulation symbol with the channel symbol function to generate a transmission symbol to transmit the generated transmission symbol through a transmission antenna; and a receiving apparatus which receives the transmission symbol through a reception antenna, estimates a channel symbol function included in the transmission symbol, and extracts the data signal based on the modulation symbol included in the transmission symbol.
Abstract translation: 公开了一种基于无线通信系统中的信道功能提高频率效率的无线通信方法及其装置。 使用数字调制方式的无线通信系统包括：调制数据信号以生成调制符号的发送装置，生成与调制符号对应的信道符号功能，将调制符号与信道符号功能组合，生成发送 符号，用于通过发送天线发送生成的发送符号; 以及通过接收天线接收发送符号的接收装置，估计包含在发送符号中的信道符号函数，并且根据包含在发送符号中的调制符号提取数据信号。
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公开(公告)号：US20220360295A1
公开(公告)日：2022-11-10
申请号：US17734286
申请日：2022-05-02
Inventor： In Kui CHO , Jang Yeol KIM , Jung Hoon OH , Jae Woo LEE , Jae Ho LEE , Hyun Joon LEE , Sang Won KIM , Seong Min KIM , Jung Ick MOON , Woo Jin BYUN , Je Hoon YUN
IPC: H04B5/00
Abstract: An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, and a second input terminal connected to the first capacitor, the second capacitor, and the third capacitor.
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