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公开(公告)号：US10911136B2
公开(公告)日：2021-02-02
申请号：US16203394
申请日：2018-11-28
申请人： Electronics and Telecommunications Research Institute , FOUNDATION FOR RESEARCH AND BUSINESS, SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Byung Jang Jeong , Woo Jin Byun , Ji-Hoon Yun , Jae-Han Lim , Wisnu Murti
IPC分类号： H04B7/22 , H04B7/0456 , H04L1/00 , H04B1/00 , H04B7/08
摘要： 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：US08942307B2
公开(公告)日：2015-01-27
申请号：US13912752
申请日：2013-06-07
申请人： Electronics and Telecommunications Research Institute , Foundation for Research and Business Seoul National University of Science and Technology
发明人： Bong-Su Kim , Kwang Seon Kim , Min Soo Kang , Woo Jin Byun , Hung Chul Park
CPC分类号： H04B7/0413 , H01Q3/24 , H01Q21/0006 , H04B7/0604
摘要： An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information.
摘要翻译： 基于空间调制的天线切换装置包括多个天线; 被配置为产生多个切换控制信号的控制信号发生器; 以及多个开关，其被配置为根据各个开关控制信号接通以将发送信号施加到各个天线。 此外，天线切换装置包括：延迟分析器，被配置为接收从多个开关中的每一个输出的发送信号，以计算用于使施加到各个开关的开关控制信号同步的延迟信息; 以及延迟调整器，被配置为使切换控制信号同步，以根据所计算的延迟信息将同步的切换控制信号施加到各个开关。
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公开(公告)号：US20140254726A1
公开(公告)日：2014-09-11
申请号：US13912752
申请日：2013-06-07
申请人： Foundation For Research And Business Seoul National University Of Science And Technology , Electronics And Telecommunications Research Institute
发明人： Bong-Su KIM , Kwang Seon Kim , Min Soo Kang , Woo Jin Byun , Hung Chul Park
CPC分类号： H04B7/0413 , H01Q3/24 , H01Q21/0006 , H04B7/0604
摘要： An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information.
摘要翻译： 基于空间调制的天线切换装置包括多个天线; 被配置为产生多个切换控制信号的控制信号发生器; 以及多个开关，其被配置为根据各个开关控制信号接通以将发送信号施加到各个天线。 此外，天线切换装置包括：延迟分析器，被配置为接收从多个开关中的每一个输出的发送信号，以计算用于使施加到各个开关的开关控制信号同步的延迟信息; 以及延迟调整器，被配置为使切换控制信号同步，以根据所计算的延迟信息将同步的切换控制信号施加到各个开关。
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公开(公告)号：US11804874B2
公开(公告)日：2023-10-31
申请号：US17734286
申请日：2022-05-02
发明人： 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分类号： H04B5/00
CPC分类号： H04B5/0031 , H04B5/0081 , H04B5/0087
摘要： 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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公开(公告)号：US09503204B2
公开(公告)日：2016-11-22
申请号：US14976496
申请日：2015-12-21
发明人： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Jung Bin Kim , Woo Jin Byun , Mi Kyung Suk
摘要： 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.
摘要翻译： 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：US09246359B2
公开(公告)日：2016-01-26
申请号：US13773873
申请日：2013-02-22
发明人： Jung Ick Moon , In Kui Cho , Seong-Min Kim , Je Hoon Yun , Woo Jin Byun
CPC分类号： H02J50/00 , H02J17/00 , H02J50/12 , H04B5/0037 , H04B5/0087
摘要： Disclosed is an apparatus for harvesting leakage energy. The apparatus for harvesting leakage energy includes: an energy harvesting unit configured to harvest energy leaked while energy radiated from a transmitting unit of an energy transmitting apparatus is transmitted to a receiving unit of an energy receiving apparatus; and a harvesting circuit module configured to supply energy harvested by the energy harvesting unit to a load. In accordance with the embodiment of the present invention, energy efficiency of overall system can be increased by harvesting the leakage energy without affecting performance of a wireless power transmission system.
摘要翻译： 公开了一种用于收获泄漏能量的装置。 用于收集泄漏能量的装置包括：能量收集单元，被配置为收集从能量发射装置的发射单元辐射的能量被发射到能量接收装置的接收单元的泄露的能量; 以及收集电路模块，其被配置为将能量收集单元收集的能量提供给负载。 根据本发明的实施例，可以通过收集泄漏能量而不影响无线电力传输系统的性能来提高整个系统的能量效率。
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公开(公告)号：US11658413B2
公开(公告)日：2023-05-23
申请号：US17712767
申请日：2022-04-04
发明人： Jung Nam Lee , Woo Jin Byun , Kwang Seon Kim
IPC分类号： H01Q21/20 , H01Q3/36 , H04B7/0426 , H01Q5/28 , H01Q15/00
CPC分类号： H01Q3/36 , H01Q5/28 , H01Q15/0033 , H04B7/043
摘要： An array antenna capable of steering a beam in a first communication node of a wireless communication system may comprise: a plurality of single antennas each capable of variably adjusting a beam steering direction; a plurality of beamforming control units each of which is connected to each of the plurality of single antennas to control a beamforming operation of each of the plurality of single antennas; and an array antenna control unit connected to the plurality of beamforming control units to control a beamforming operation of the entire array antenna, wherein the plurality of single antennas are arranged in a cylindrical shape and are installed to face a direction opposite to a central direction of the cylinder shape, and the array antenna is configured to steer a beam to a predetermined area around the first communication node through at least one single antenna among the plurality of single antennas.
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公开(公告)号：US10419133B2
公开(公告)日：2019-09-17
申请号：US15825913
申请日：2017-11-29
发明人： Chung Sup Kim , Hyuk Je Kim , Young Jun Chong , Jong Soo Lim , Woo Jin Byun
IPC分类号： H04B15/00 , H04W64/00 , H04W4/02 , H01Q3/34 , H01Q1/00 , H01Q21/20 , H01Q1/08 , H01Q1/12 , H04W4/029 , H01Q21/08
摘要： Disclosed is a method of estimating a position of a signal source and a position estimation apparatus, the method including acquiring an environment, a frequency, and a bandwidth of the interference signal source, determining an arrangement form of the two antennas based on the environment, the frequency, and the bandwidth and arranging the two antennas, and estimating a position of the interference signal source based on an interference signal of the interference signal source and the two arranged antennas, wherein the environment includes an indoor environment and an outdoor environment.
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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
发明人： Kwang Seon Kim , Min Soo Kang , Bong Su Kim , Myung Sun Song , Woo Jin Byun
IPC分类号： H04W4/00 , H04L25/02 , H04B7/0413 , H04W24/02
摘要： 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：US10122202B2
公开(公告)日：2018-11-06
申请号：US14816898
申请日：2015-08-03
发明人： In Kui Cho , Seong Min Kim , Jung Ick Moon , Je Hoon Yun , Woo Jin Byun , Hyung Do Choi
摘要： Provided is an energy charging apparatus including a transponder configured to transmit and receive radio energy, and a resonator configured to transmit the radio energy transmitted from the transponder to at least one external device and transmit the radio energy received from the at least one external device to the transponder, wherein each of the transponder and the resonator is provided in a form of a single module.
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