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11.发明申请公开(公告)号：US20150188660A1
公开(公告)日：2015-07-02
申请号：US14582399
申请日：2014-12-24
Inventor： Woo Jin BYUN , Yong Heui CHO , Kwang Seon KIM , Bong Su KIM , Min Soo KANG , Jong Soo LIM
IPC: H04J14/04
CPC classification number: H04J14/04 , H04B10/2581 , H04B10/70
Abstract: Provided is an apparatus and method for simultaneously transmitting and receiving orbital angular momentum (OAM) modes. An apparatus for transmitting OAM modes may include a mode multiplexing apparatus, and a matrix array antenna configured to output OAM modes for electromagnetic waves based on mode signals, wherein the mode multiplexing apparatus may include hybrid couplers configured to generate a plurality of output signals having different phases and different amplitudes by mixing and distributing a plurality of input signals, and phase shifters configured to generate the mode signals by shifting the phases of the output signals.
Abstract translation: 提供了一种用于同时发送和接收轨道角动量（OAM）模式的装置和方法。 一种用于发送OAM模式的装置可以包括模式多路复用装置，以及矩阵阵列天线，被配置为基于模式信号输出用于电磁波的OAM模式，其中模式多路复用装置可以包括混合耦合器，其被配置为生成具有不同的多个输出信号 通过混合和分配多个输入信号的相位和不同幅度，以及配置为通过移位输出信号的相位来产生模式信号的移相器。
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12.发明申请公开(公告)号：US20140153667A1
公开(公告)日：2014-06-05
申请号：US13866174
申请日：2013-04-19
Inventor： Jin Hyuk SONG , Jong Soo LIM
IPC: H04L27/26
CPC classification number: H04L27/2634 , H04L27/2614
Abstract: A method and apparatus for transmitting an OFDM signal including converting a distribution of a signal in which inverse Fourier transform is performed in an OFDM system and a method of receiving an OFDM signal including expanding a received signal are provided, and by changing a magnitude distribution of a signal that is output from an OFDM modulator to a bimodal Gaussian distribution, an influence of noise in a receiving terminal can be reduced, and by limiting a signal that is output from an OFDM modulator to an appropriate magnitude, a phase in the receiving terminal can be prevented being wrongly demodulated.
Abstract translation: 提供一种用于发送OFDM信号的方法和装置，包括在OFDM系统中进行逆傅立叶变换的信号的分布，以及接收包括扩展接收信号的OFDM信号的接收方法，并且通过改变 从OFDM调制器输出到双模高斯分布的信号，可以减少接收终端中的噪声的影响，并且通过将从OFDM调制器输出的信号限制到适当的幅度，接收终端中的相位 可以防止错误解调。
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公开(公告)号：US20240214093A1
公开(公告)日：2024-06-27
申请号：US18514179
申请日：2023-11-20
Inventor： Jun Seok KIM , Jong Soo LIM , Young Jun CHONG , Ju Yeon HONG
IPC: H04B17/391 , H04B17/00
CPC classification number: H04B17/3912 , H04B17/0087
Abstract: Exemplary embodiments provide a method of correcting a result of a ray tracing-based propagation channel simulation. The method of correcting propagation channel simulation data, includes: determining an intensity error value of a propagation channel simulation model for a propagation path associated with each object in a space for which a three-dimensional (3D) environment map is given and storing the intensity error value in a storage device; performing a propagation channel simulation for an arbitrary pair of a transmitter position and a receiver position in the space to obtain multipath components; determining an object having influenced propagations of the multipath components in the space; and correcting an intensity of at least one of the multipath components by applying the intensity error value associated with a determined object stored in the storage device.
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Patent Agency Ranking
14.发明公开公开(公告)号：US20230147708A1
公开(公告)日：2023-05-11
申请号：US17537175
申请日：2021-11-29
Inventor： Chung Sup KIM , Jun Seok KIM , Jong Soo LIM , Ju Yeon HONG , Young Jun CHONG
CPC classification number: H04L25/0248 , H04B17/30 , H01Q1/242
Abstract: An operating method of a power estimation apparatus comprising a fixed antenna and a mobile antenna may comprise: a first operation of obtaining N measurement values by receiving a signal from signal sources using the fixed antenna and the mobile antenna that moves at a speed v from a first point to an Nth point; a second operation of generating a two-dimensional (2D) data collection set comprising N×M measurement values, by repeating the first operation M times; applying an approximation singular value decomposition (SVD) algorithm to the 2D data collection set; and obtaining information of the signal sources based on an application result of the approximation SVD algorithm, wherein N and M are natural numbers.
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15.发明申请OBJECT RECOGNITION APPARATUS AND OBJECT RECOGNITION METHOD USING SPATIAL ELECTROMAGNETIC WAVES 审中-公开使用空间电磁波的对象识别装置和对象识别方法公开(公告)号：US20160282460A1
公开(公告)日：2016-09-29
申请号：US15081047
申请日：2016-03-25
Inventor： Jin Woo HONG , Jong Soo LIM
CPC classification number: G08B13/2491 , G01R29/0878 , G01S13/003
Abstract: Disclosed is an object recognition apparatus using spatial electromagnetic waves. The object recognition apparatus includes: a spatial electromagnetic wave measurer configured to measure a signal strength of electromagnetic waves generated for a predetermined purpose in a specific space; and an object recognizer configured to recognize an object present in the specific space based on whether there is a change in the measured signal strength.
Abstract translation: 公开了一种使用空间电磁波的物体识别装置。 物体识别装置包括：空间电磁波测量器，被配置为测量在特定空间中为预定目的产生的电磁波的信号强度; 以及对象识别器，其被配置为基于所测量的信号强度是否存在变化来识别存在于所述特定空间中的对象。
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16.发明申请METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL IN OFDM SYSTEM 审中-公开OFDM系统中发送和接收信号的方法和装置公开(公告)号：US20150195119A1
公开(公告)日：2015-07-09
申请号：US14309570
申请日：2014-06-19
Inventor： Jin Hyuk SONG , Jong Soo LIM , Heung Mook KIM
CPC classification number: H04L27/362 , H04L27/2614 , H04L27/2623 , H04L27/2628 , H04L27/265 , H04L27/38
Abstract: In an orthogonal frequency division multiplexing (OFDM) wireless communication system, by modulating a phase of a symbol signal of source data to transmit and by performing constellation mapping of additional data having a coded channel and a signal having a modulated phase, a transmitting signal in which the additional data and the signal having a modulated phase are coupled is generated and transmitted.
Abstract translation: 在正交频分复用（OFDM）无线通信系统中，通过调制源数据的符号信号的相位进行发送，并通过对具有编码信道的附加数据和具有调制相位的信号执行星座映射， 生成并发送附加数据和具有调制相位的信号的耦合。
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公开(公告)号：US20130294220A1
公开(公告)日：2013-11-07
申请号：US13886943
申请日：2013-05-03
Inventor： Jong Soo LIM , Sun Hyoung KWON , Heung Mook KIM , Namho HUR
IPC: H04L5/12
Abstract: A transmission apparatus couples a first phase modulation signal for first input data and a second phase modulation signal for second input data according to a first coupling method and transmits the coupled signal, and a reception apparatus receives the coupled signal. The reception apparatus derives a signal in which a first phase modulation signal and a second phase modulation signal are coupled according to a second coupling method from a received signal and separates the first phase modulation signal and the second phase modulation signal from the received signal based on the received signal and the derived signal. Furthermore, the reception apparatus obtains the first input data by demodulating the first phase modulation signal and obtains the second input data by demodulating the second phase modulation signal.
Abstract translation: 发送装置根据第一耦合方式将用于第一输入数据的第一相位调制信号和第二输入数据的第二相位调制信号进行耦合，并发送耦合信号，接收装置接收耦合信号。 接收装置根据接收到的信号，得出第一相位调制信号和第二相位调制信号根据第二耦合方式进行耦合的信号，并根据接收信号从接收信号中分离第一相位调制信号和第二相位调制信号 接收信号和导出信号。 此外，接收装置通过解调第一相位调制信号来获得第一输入数据，并通过解调第二相位调制信号来获得第二输入数据。
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公开(公告)号：US20130077714A1
公开(公告)日：2013-03-28
申请号：US13628978
申请日：2012-09-27
CPC classification number: H04L27/265 , H04L27/2614 , H04L27/2636
Abstract: A data transmitting apparatus generates a plurality of modulation data symbols by performing symbol mapping of input data, converts and angle-modulates the plurality of modulation data symbols from a frequency domain to a real number signal of a time domain, and circular-shifts and transmits the angle-modulated signal from a signal of a frequency domain.
Abstract translation: 数据发送装置通过执行输入数据的符号映射来生成多个调制数据符号，将多个调制数据符号从频域转换和角度调制到时域的实数信号，并进行循环移位和发送 来自频域的信号的角度调制信号。
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