公开(公告)号：US08731126B2

公开(公告)日：2014-05-20

申请号：US12942350

申请日：2010-11-09

申请人： Joon-Gyu Ryu ,  Dae-Ig Chang

发明人： Joon-Gyu Ryu ,  Dae-Ig Chang

IPC分类号： H03D3/24 ,  H03L7/06

CPC分类号： H03L7/185 ,  H03L7/099 ,  H03L2207/12

摘要： A phase locked loop includes: a loop filter; a voltage controlled oscillating unit configured to output a frequency varying according to an output voltage of the loop filter; a frequency down-converting unit configured to down-convert an output frequency of the voltage controlled oscillating unit according to a band of the output frequency of the voltage controlled oscillating unit; and a frequency divider configured to divide a frequency down-converted by the frequency down-converting unit. The output frequency of the voltage controlled oscillating unit varies according to the output voltage of the loop filter and a control signal compensating the frequency down-converted by the frequency down-converting unit.

摘要翻译： 锁相环包括：环路滤波器; 电压控制振荡单元，被配置为输出根据所述环路滤波器的输出电压而变化的频率; 降频转换单元，被配置为根据压控振荡单元的输出频率的频带对压控振荡单元的输出频率进行下变频; 以及分频器，被配置为对由下变频单元进行下变频的频率进行分频。 电压控制振荡单元的输出频率根据环路滤波器的输出电压和补偿由下变频单元下变频的频率的控制信号而变化。

公开(公告)号：US20120114029A1

公开(公告)日：2012-05-10

申请号：US13290556

申请日：2011-11-07

申请人： Joon-gyu RYU ,  Deock-Gil OH ,  Sang-Gee KANG

发明人： Joon-gyu RYU ,  Deock-Gil OH ,  Sang-Gee KANG

IPC分类号： H04B17/00

CPC分类号： H04B1/0483 ,  H03F1/0222 ,  H03F3/24 ,  H03F2200/102

摘要： Provided are a method and apparatus for measuring a time delay in an envelope elimination and restoration (EER) transmitter. A method of measuring a time delay in an EER transmitter includes receiving a modulated sinusoidal signal and distributing the modulated sinusoidal signal to be transmitted through transmission lines separated from each other, extracting an amplitude modulation signal and a phase modulation signal from the modulated sinusoidal signal, and detecting envelops of the amplitude and phase modulation signals and determining a difference in time between the amplitude and phase modulation signals. In the EER transmitter, to measure a time delay between input and output signals, time delays of paths of amplitude and phase modulation signals of the input signal are compared, thereby determining a difference in time between the amplitude and phase modulation signals.

摘要翻译： 提供了一种用于测量包络消除和恢复（EER）发射机中的时间延迟的方法和装置。 一种测量EER发射机中的时间延迟的方法包括：接收调制正弦信号并分配要通过彼此分离的传输线传输的调制正弦信号，从调制正弦信号中提取幅度调制信号和相位调制信号， 以及检测振幅和相位调制信号的包络并确定幅度和相位调制信号之间的时间差。 在EER发射机中，为了测量输入和输出信号之间的时间延迟，比较输入信号幅度和相位调制信号路径的时间延迟，从而确定幅度和相位调制信号之间的时间差。

公开(公告)号：US07801101B2

公开(公告)日：2010-09-21

申请号：US10892679

申请日：2004-07-15

申请人： Minsu Shin ,  Joon-Gyu Ryu ,  Hoon Jeong ,  Ho-Jin Lee

发明人： Minsu Shin ,  Joon-Gyu Ryu ,  Hoon Jeong ,  Ho-Jin Lee

IPC分类号： H04B7/216

CPC分类号： H04B7/18513 ,  H04L1/0003 ,  H04L1/0009 ,  H04W4/18 ,  H04W84/06

摘要： Provided are a forward link rain attenuation compensating apparatus using an adaptive transmission scheme in an interactive satellite communication system and a method thereof. The apparatus separates the mobile stations into clear-sky mobile stations and mobile stations in the state of rain attenuation and makes the clear-sky mobile stations receive data having a high data transmission efficiency at a high-speed while making the rain attenuation mobile stations receive the data continuously although the data transmit rate is low by making each of the two kinds of mobile stations receive data frames of a different transmission method, and provides a method therefor. The apparatus includes: a resource manager, a transmitting data format converter, a forward modulator, a backward demodulator, a receiving data format converter.

摘要翻译： 提供一种在交互式卫星通信系统中使用自适应传输方案的前向链路雨衰补偿装置及其方法。 该装置将移动台分为处于雨衰状态的空中移动台和移动台，使得天空清空的移动台高速接收高数据传输效率的数据，同时使雨衰移移动站接收 通过使两种移动站中的每一个接收到不同的传输方式的数据帧，数据传输速率是低的，并且提供了一种方法。 该装置包括：资源管理器，发送数据格式转换器，前向调制器，反向解调器，接收数据格式转换器。

公开(公告)号：US20100158091A1

公开(公告)日：2010-06-24

申请号：US12496917

申请日：2009-07-02

申请人： Pan-Soo Kim ,  Joon-Gyu Ryu ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Myung-Hoon Sunwoo ,  Jang-Woong Park

发明人： Pan-Soo Kim ,  Joon-Gyu Ryu ,  Dae-Ig Chang ,  Ho-Jin Lee ,  Myung-Hoon Sunwoo ,  Jang-Woong Park

IPC分类号： H04B17/00 ,  H04L27/06

CPC分类号： H04L27/22 ,  H04L27/0014 ,  H04L2027/0067

摘要： Provided is a frequency error estimating method of a communication system. The method includes receiving a frame, and calculating a frequency error from a SOF field of the received frame.

摘要翻译： 提供了一种通信系统的频率误差估计方法。 该方法包括接收帧，并从接收到的帧的SOF字段计算频率误差。

公开(公告)号：US20080129423A1

公开(公告)日：2008-06-05

申请号：US11948079

申请日：2007-11-30

申请人： Sung Min HAN ,  Ho Kyom KIM ,  Joon Gyu RYU ,  Young Wan KIM ,  Ki Seop Han

发明人： Sung Min HAN ,  Ho Kyom KIM ,  Joon Gyu RYU ,  Young Wan KIM ,  Ki Seop Han

IPC分类号： H01P1/16

CPC分类号： H01P1/161

摘要： Provided are a 3-port orthogonal mode transducer, and a receiver and receiving method using the same. The 3-port orthogonal mode transducer includes: a transmission port having a rectangular shape elongated in a horizontal direction and configured to transmit a Ka-band (30 GHz) vertical polarization signal; a first reception port having a rectangular shape inclined at about +45 degrees at a location being at about +45 degrees with respect to the transmission port and configured to receive a K-band (20 GHz) vertical or horizontal polarization signal phased-delayed about +45 degrees; and a second reception port having a rectangular shape inclined at about −45 degrees at a location being at about −45 degrees with respect to the transmission port and configured to receive a K-band (20 GHz) vertical or horizontal polarization signal phase-delayed about −45 degrees.

摘要翻译： 提供一种3端口正交模式换能器，以及使用其的接收器和接收方法。 3端口正交模式换能器包括：具有在水平方向上伸长的矩形形状并被配置为发送Ka波段（30GHz）垂直极化信号的传输端口; 第一接收端口，其具有相对于传输端口在大约+45度的位置处以大约+45度倾斜的矩形形状，并且被配置为接收相位延迟的K波段（20GHz）垂直或水平极化信号 +45度; 以及第二接收端口，具有相对于所述传输端口在大约-45度的位置处以大约-45度倾斜的矩形形状，并且被配置为接收相位延迟的K波段（20GHz）垂直或水平极化信号 约-45度。

公开(公告)号：US20130051693A1

公开(公告)日：2013-02-28

申请号：US13423431

申请日：2012-03-19

申请人： Joon Gyu RYU ,  Deock Gil OH

发明人： Joon Gyu RYU ,  Deock Gil OH

IPC分类号： G06K9/36

CPC分类号： H04H20/423 ,  H04H20/74 ,  H04H60/07 ,  H04H60/32 ,  H04H2201/30 ,  H04N7/20 ,  H04N21/2383 ,  H04N21/6143 ,  H04N21/6379

摘要： Provided are an adaptive coding modulation (ACM)-based simulcast transmission and reception apparatus and method. The apparatus includes a transmitter configured to analyze whether or not it is raining in a region where a receiver is present on the basis of channel state information (CSI) provided by the receiver, encode and/or modulate an image signal according to the analysis result, and provide the encoded and/or modulated image signal through a single band or multiple bands. On the basis of a result of analyzing whether or not it is raining in a region where a receiver is present, it is possible to effectively prevent signal attenuation caused by rain by providing image signals having different resolutions through multiple bands when the region is in a rainfall state.

摘要翻译： 提供了一种基于自适应编码调制（ACM）的联播传输和接收设备和方法。 该装置包括发射机，被配置为基于接收机提供的信道状态信息（CSI）来分析在接收机所在的区域中是否下雨，根据分析结果编码和/或调制图像信号 并且通过单个频带或多个频带提供编码和/或调制的图像信号。 基于在接收机存在的区域中分析是否下雨的结果的基础，当区域处于该区域时，通过提供具有不同分辨率的图像信号，可以有效地防止由雨水引起的信号衰减 降雨状态。

公开(公告)号：US20070092041A1

公开(公告)日：2007-04-26

申请号：US11442078

申请日：2006-05-25

申请人： Il-Han Kim ,  Joon-Gyu Ryu ,  Ho-Kyom Kim ,  Deock-Gil Oh

发明人： Il-Han Kim ,  Joon-Gyu Ryu ,  Ho-Kyom Kim ,  Deock-Gil Oh

IPC分类号： H04L27/22

CPC分类号： H04L27/0012 ,  H04L27/22

摘要： Provided are an apparatus and method for robust Binary Phase Shift Keying/Quadrature Phase Shift Keying (BPSK/QPSK) blind modulation classification against errors in a satellite communication system. The apparatus includes first and second likelihood value calculators for calculating a likelihood value of a received baseband signal each for of BPSK and QPSK modulation modes, respectively, a maximum setting unit for deriving a maximum value of the likelihood values or ith likelihood ratios calculated by the first and second likelihood value calculators and setting a flag for the maximum value to “1” and a flag for the remaining value to “0”, first and second flag combining units for combining the flags for the modulation modes, respectively, a modulation mode flag setting unit for selecting a maximum value from the flags combined by the first and second flag combining units, and a modulation classification mode deciding unit.

摘要翻译： 本发明提供了一种针对卫星通信系统中的错误的鲁棒二进制相移键控/正交相移键控（BPSK / QPSK）盲调制分类的装置和方法。 该装置包括：第一和第二似然值计算器，用于分别计算用于BPSK和QPSK调制模式的接收基带信号的似然值;最大设置单元，用于导出似然值的最大值或i < / SUP>似然比，并将最大值的标志设置为“1”，将剩余值的标志设置为“0”，第一和第二标志组合单元，用于组合用于 调制模式标志设置单元，用于从由第一和第二标志组合单元组合的标志中选择最大值，以及调制分类模式决定单元。

公开(公告)号：US20120099521A1

公开(公告)日：2012-04-26

申请号：US13279358

申请日：2011-10-24

申请人： Joon Gyu RYU ,  Minsu Shin ,  Deock Gil Oh

发明人： Joon Gyu RYU ,  Minsu Shin ,  Deock Gil Oh

IPC分类号： H04W56/00

CPC分类号： H04N21/6143 ,  H04N21/23608 ,  H04N21/242

摘要： A center district network synchronization acquisition apparatus and method capable of accommodating both a GPS mode based terminal and an NCR mode based terminal. The center district network synchronization acquisition apparatus for a satellite communication system according to an exemplary embodiment includes: a timing generating unit configured to generate an interrupt signal by being synchronized with a PPS (pulse per second) signal received from a reference clock generation module, an NCR counter configured to extract a corresponding NCR (network clock reference) value at a timing indicated by the interrupt signal, and a packet generating unit configured to generate an MPEG2-TS packet including the NCR value extracted according to the interrupt signal. Therefore, this apparatus can accommodate both a GPS mode based terminal and an NCR mode based terminal. As a result, the satellite communication system can operate regardless of the network synchronization mode performed by the terminal.

摘要翻译： 一种能够兼容基于GPS模式的终端和基于NCR模式的终端的中心区域网络同步捕获装置和方法。 根据示例性实施例的用于卫星通信系统的中心区域网络同步获取装置包括：定时生成单元，被配置为通过与从参考时钟生成模块接收的PPS（每秒脉冲）信号同步地生成中断信号， NCR计数器被配置为在由中断信号指示的定时提取对应的NCR（网络时钟参考）值，以及分组生成单元，被配置为生成包括根据中断信号提取的NCR值的MPEG2-TS分组。 因此，该装置可以容纳基于GPS模式的终端和基于NCR模式的终端。 结果，无论由终端执行的网络同步模式如何，卫星通信系统都可以运行。

公开(公告)号：US20110116587A1

公开(公告)日：2011-05-19

申请号：US12942350

申请日：2010-11-09

申请人： Joon-Gyu RYU ,  Dae-lg Chang

发明人： Joon-Gyu RYU ,  Dae-lg Chang

IPC分类号： H03D3/24 ,  H03L7/08

CPC分类号： H03L7/185 ,  H03L7/099 ,  H03L2207/12

摘要： A phase locked loop includes: a loop filter; a voltage controlled oscillating unit configured to output a frequency varying according to an output voltage of the loop filter; a frequency down-converting unit configured to down-convert an output frequency of the voltage controlled oscillating unit according to a band of the output frequency of the voltage controlled oscillating unit; and a frequency divider configured to divide a frequency down-converted by the frequency down-converting unit. The output frequency of the voltage controlled oscillating unit varies according to the output voltage of the loop filter and a control signal compensating the frequency down-converted by the frequency down-converting unit.

摘要翻译： 锁相环包括：环路滤波器; 电压控制振荡单元，被配置为输出根据所述环路滤波器的输出电压而变化的频率; 降频转换单元，被配置为根据压控振荡单元的输出频率的频带对压控振荡单元的输出频率进行下变频; 以及分频器，被配置为对由下变频单元进行下变频的频率进行分频。 电压控制振荡单元的输出频率根据环路滤波器的输出电压和补偿由下变频单元下变频的频率的控制信号而变化。

公开(公告)号：US08831368B2

公开(公告)日：2014-09-09

申请号：US13423431

申请日：2012-03-19

申请人： Joon Gyu Ryu ,  Deock Gil Oh

发明人： Joon Gyu Ryu ,  Deock Gil Oh

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04H20/423 ,  H04H20/74 ,  H04H60/07 ,  H04H60/32 ,  H04H2201/30 ,  H04N7/20 ,  H04N21/2383 ,  H04N21/6143 ,  H04N21/6379

摘要： Provided are an adaptive coding modulation (ACM)-based simulcast transmission and reception apparatus and method. The apparatus includes a transmitter configured to analyze whether or not it is raining in a region where a receiver is present on the basis of channel state information (CSI) provided by the receiver, encode and/or modulate an image signal according to the analysis result, and provide the encoded and/or modulated image signal through a single band or multiple bands. On the basis of a result of analyzing whether or not it is raining in a region where a receiver is present, it is possible to effectively prevent signal attenuation caused by rain by providing image signals having different resolutions through multiple bands when the region is in a rainfall state.

摘要翻译： 提供了一种基于自适应编码调制（ACM）的联播传输和接收设备和方法。 该装置包括发射机，被配置为基于接收机提供的信道状态信息（CSI）来分析在接收机所在的区域中是否下雨，根据分析结果编码和/或调制图像信号 并且通过单个频带或多个频带提供编码和/或调制的图像信号。 基于在接收机存在的区域中分析是否下雨的结果的基础，当区域处于该区域时，通过提供具有不同分辨率的图像信号，可以有效地防止由雨水引起的信号衰减 降雨状态。