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公开(公告)号：US09503204B2
公开(公告)日：2016-11-22
申请号：US14976496
申请日：2015-12-21
Inventor： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Jung Bin Kim , Woo Jin Byun , Mi Kyung Suk
Abstract: Provided is an apparatus for calibrating a transmission path, the apparatus including one or more couplers to separate, by one or more paths, one or more input signals input from an input terminal of one or more antennas, a power detector to detect amplitude of one or more path signals separated by the one or more paths, a power distributor to distribute any one of the one or more path signals, one or more mixers to mix a distribution signal distributed by the power distributor with the one or more path signals, a low-pass filter to remove a high-frequency component of a mixed signal mixed by the one or more mixers; and a voltage detector to detect amplitude of one or more filter pass signals with the high-frequency component removed.
Abstract translation: 提供了一种用于校准传输路径的装置，该装置包括一个或多个耦合器，以通过一个或多个路径分离从一个或多个天线的输入端子输入的一个或多个输入信号，功率检测器，用于检测一个或多个天线的幅度 或更多路径信号，一个或多个路径分离的路径信号;功率分配器，用于分配所述一个或多个路径信号中的任何一个，一个或多个混频器，以将由所述分配器分配的分配信号与所述一个或多个路径信号混合; 低通滤波器，以去除由一个或多个混频器混合的混合信号的高频分量; 以及电压检测器，用于检测去除了高频分量的一个或多个滤波器通过信号的幅度。
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公开(公告)号：US10361889B2
公开(公告)日：2019-07-23
申请号：US15459749
申请日：2017-03-15
Inventor： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Myung Sun Song , Woo Jin Byun
IPC: H04W4/00 , H04L25/02 , H04B7/0413 , H04W24/02
Abstract: The present disclosure relates to a wireless communication apparatus capable of increasing throughput using MIMO in an LOS environment and a method for the same. A wireless communication apparatus based on the LOS-MIMO technique may comprise a multi-link configuration unit, a frequency response correction unit, a signal compensation unit, and a feedback unit. In the apparatus, an additional LOS-MIMO equalizer is used at the front of an LOS-MIMO estimator and a coding unit in order to compensate in-band frequency characteristics of frequency response characteristics estimated by the LOS-MIMO estimator and a signal channel estimator, whereby the LOS-MIMO estimation performance can be remarkably enhanced. Also, precise separation of multiplexed signals through the above-described LOS equalizer can make it possible to increase transmission capacity by using the LOS-MIMO which can be applied to high-order mode (e.g., over 16 quadrature amplitude modulation (QAM)) digital communications.
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公开(公告)号：US09537225B2
公开(公告)日：2017-01-03
申请号：US13949358
申请日：2013-07-24
Inventor： Woo Jin Byun , Yong Heui Cho , Min Soo Kang , Kwang Seon Kim , Bong-Su Kim
CPC classification number: H01Q21/065 , H01Q3/46
Abstract: A method for use with a reflectarray antenna for wireless telecommunication is described. The method involves providing a reflectarray antenna, and adjusting a phase of a scattered field of the reflectarray antenna for generating different radiation patterns for angular mode-based multiplexing. The reflectarray antenna includes a ground plane, a dielectric substrate attached on the ground plane; and a first antenna patch formed on one side of the dielectric substrate. Further, the reflectarray antenna includes a second antenna patch formed adjacent to the first antenna patch with a separation area therebetween; and a phase adjustment member disposed in the separation area. The phase of the scattered field of the antenna is adjusted by changing a DC voltage of the phase adjustment member.
Abstract translation: 描述了一种用于无线电信的反射阵列天线的方法。 该方法包括提供反射阵列天线，以及调整反射阵列天线的散射场的相位，以产生用于基于角模的复用的不同辐射图。 反射阵列天线包括接地平面，附着在接地平面上的电介质基片; 以及形成在电介质基板的一侧上的第一天线贴片。 此外，反射阵列天线包括与第一天线贴片相邻形成的第二天线贴片，其间具有分隔区域; 以及设置在分离区域中的相位调整构件。 通过改变相位调整部件的直流电压来调整天线的散射场的相位。
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4.发明授权公开(公告)号：US11892556B2
公开(公告)日：2024-02-06
申请号：US17554364
申请日：2021-12-17
Inventor： Hyung Jung Kim , Min Soo Kang , Sang In Cho
IPC: G01S7/28 , G01S13/42 , G01S13/933
CPC classification number: G01S7/2813 , G01S13/428 , G01S13/933
Abstract: Disclosed is a method and apparatus for generating a radar signal, in which performance of radar detection is ensured while increasing a spectrum efficiency in a radar network. The method comprises generating a set of frequency-modulation waveforms, generating an orthogonal code set, generating a set of coded frequency-modulation waveforms through element operation between the set of frequency-modulation waveforms and the orthogonal code set, calculating an objective function for the set of frequency-modulation waveforms with regard to a different set of coded frequency-modulation waveforms and previous sets of coded frequency-modulation waveforms, and selecting a current polyphase code set as an optimized polyphase code set when a result of current calculation is better or smaller than a result of previous iteration, and performing phase perturbation by replacing an element randomly selected in the current polyphase code set selected as the optimized polyphase code set with another admissible-phase element.
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公开(公告)号：US10056700B2
公开(公告)日：2018-08-21
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
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.
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Patent Agency Ranking
公开(公告)号：US20160191177A1
公开(公告)日：2016-06-30
申请号：US14976496
申请日：2015-12-21
Inventor： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Jung Bin Kim , Woo Jin Byun , Mi Kyung Suk
Abstract: Provided is an apparatus for calibrating a transmission path, the apparatus including one or more couplers to separate, by one or more paths, one or more input signals input from an input terminal of one or more antennas, a power detector to detect amplitude of one or more path signals separated by the one or more paths, a power distributor to distribute any one of the one or more path signals, one or more mixers to mix a distribution signal distributed by the power distributor with the one or more path signals, a low-pass filter to remove a high-frequency component of a mixed signal mixed by the one or more mixers; and a voltage detector to detect amplitude of one or more filter pass signals with the high-frequency component removed.
Abstract translation: 提供了一种用于校准传输路径的装置，该装置包括一个或多个耦合器，以通过一个或多个路径分离从一个或多个天线的输入端子输入的一个或多个输入信号，功率检测器，用于检测一个或多个天线的幅度 或更多路径信号，一个或多个路径分离的路径信号;功率分配器，用于分配所述一个或多个路径信号中的任何一个，一个或多个混频器，以将由所述分配器分配的分配信号与所述一个或多个路径信号混合; 低通滤波器，以去除由一个或多个混频器混合的混合信号的高频分量; 以及电压检测器，用于检测去除了高频分量的一个或多个滤波器通过信号的幅度。
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公开(公告)号：US09106495B2
公开(公告)日：2015-08-11
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：US09960796B2
公开(公告)日：2018-05-01
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
IPC: H04B1/707 , H04B1/10 , H04B1/18 , H04B7/0452 , H04B7/08
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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9.发明授权公开(公告)号：US09853362B2
公开(公告)日：2017-12-26
申请号：US14723657
申请日：2015-05-28
Inventor： Bong Su Kim , Min Soo Kang , Kwang Seon Kim , Woo Jin Byun , Mi Kyung Suk
CPC classification number: H01Q21/061 , H01Q3/26
Abstract: The present invention provides an array antenna apparatus for a rotation mode, a wireless communication terminal, and a method thereof. The apparatus according to the exemplary embodiment includes an antenna array including a plurality of antenna elements; and a control unit which determines an antenna pattern in accordance with a transmission/reception characteristic of a signal and assigns a weight to antenna elements in a position corresponding to the determined antenna pattern on the antenna array to implement a rotation mode antenna based on the antenna element to which the weight is assigned.
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10.发明授权Apparatus and method for wirelessly transmitting and receiving energy and data 有权用于无线发送和接收能量和数据的装置和方法公开(公告)号：US09438314B2
公开(公告)日：2016-09-06
申请号：US13909532
申请日：2013-06-04
Inventor： Jung Ick Moon , In Kui Cho , Seong Min Kim , Je Hoon Yun , Woo Jin Byung , Kwang Seon Kim , Bong Su Kim , Min Soo Kang
CPC classification number: H04B5/0037 , H01Q1/248 , H01Q21/28
Abstract: A method for wirelessly receiving energy and data, including: a resonation operation of resonating a first frequency power signal transmitted from a transmission apparatus; a reception operation of receiving a second frequency data signal transmitted from the transmission apparatus; a first matching operation of matching input/output impedance upon receiving the first frequency power signal; a rectification operation of rectifying impedance-matched power signal from the first matching operation into a DC current; a second matching operation of matching input/output impedance upon receiving the second frequency data signal; an oscillation operation of outputting a second frequency signal by using the first frequency signal output from the resonation operation, as a reference frequency; and a frequency mixing operation of mixing the impedance-matched data signal from the second matching operation with the signal output from the oscillation operation to restore a baseband data signal.
Abstract translation: 一种用于无线接收能量和数据的方法，包括：谐振从发送装置发送的第一频率功率信号的谐振; 接收从所述发送装置发送的第二频率数据信号的接收动作; 在接收到所述第一频率功率信号时匹配输入/输出阻抗的第一匹配操作; 从第一匹配操作到直流电流的整流阻抗匹配功率信号的整流操作; 在接收到所述第二频率数据信号时匹配输入/输出阻抗的第二匹配操作; 通过使用从共振运算输出的第一频率信号输出第二频率信号作为参考频率的振荡操作; 以及将来自第二匹配操作的阻抗匹配数据信号与从振荡操作输出的信号混合以恢复基带数据信号的混频操作。
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