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公开(公告)号：US07844219B2
公开(公告)日：2010-11-30
申请号：US11912536
申请日：2005-12-29
申请人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04Q7/20
CPC分类号： H04B7/155 , H04B7/15564
摘要： Provided are an on-channel repeater and a method thereof. The on-channel repeater can extract reception channel information from signals transmitted from a main transmitter or another repeater, compensate for channel distortion caused on a transmission channel by inversely reflecting the extracted reception channel information to the received signals, and transmit the channel-distortion compensated signals through the same channel as a reception channel, and a method thereof. The on-channel repeater includes: a receiver for receiving RF signals transmitted from outside; a down-converter for down-converting the received RF signals into signals of a desired band; a channel-estimator for estimating an inverse value of a reception channel based on the down-converted signals; an adaptation filter for compensating for channel distortion by using a filter having the inverse value of the estimated reception channel; an up-converter for up-converting the channel distortion-compensated signals into RF signals; and a transmitter for transmitting the up-converted RF signals.
摘要翻译： 提供一种同频中继器及其方法。 同频中继器可以从主发射机或另一中继器发送的信号中提取接收信道信息，通过将所提取的接收信道信息反向反映到接收信号来补偿在传输信道上引起的信道失真，并发送信道失真补偿 通过与接收信道相同的信道发送信号，及其方法。 同频中继器包括：用于接收从外部发送的RF信号的接收机; 用于将所接收的RF信号下变频为期望频带的信号的下变频器; 用于基于下变频信号估计接收信道的反相值的信道估计器; 适应滤波器，用于通过使用具有估计的接收信道的逆值的滤波器来补偿信道失真; 用于将信道失真补偿信号上变频成RF信号的上变频器; 以及用于发送上变频的RF信号的发射机。
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公开(公告)号：US07756473B2
公开(公告)日：2010-07-13
申请号：US11579789
申请日：2004-12-31
申请人： Jae-Hyun Seo , Yong-Tae Lee , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
发明人： Jae-Hyun Seo , Yong-Tae Lee , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
IPC分类号： H04B7/14
CPC分类号： H04L25/242 , H04B7/155 , H04L2025/03375 , H04N5/211 , H04N5/38
摘要： Provided are an on-channel repeater and a method thereof. The repeater receives signals on one channel and distributes the signals on the same channel by converting RF signals from a main transmitter into baseband signals; equalizing them in a high-performance equalizer, adding a repeater identifier to them; modulating the baseband signals with the repeater identifier into RF signals. The repeater includes: a receiver for receiving RF signals; a demodulator for demodulating the RF signals into baseband signals; an equalizer for equalizing the baseband signals; an adder for adding a repeater identifier to the baseband signals; a modulator for modulating the baseband signals with the repeater identifier added in the adder into RF signals; and a transmitter for transmitting the RF signals modulated in the modulator. The technology of the present invention is used to form an on-channel repeating network in an arbitrary transmission system including a digital television broadcasting system.
摘要翻译： 提供一种同频中继器及其方法。 中继器在一个信道上接收信号，并通过将主发射机的射频信号转换为基带信号将信号分配到同一信道上; 在高性能均衡器中均衡，向其中添加中继器标识符; 将具有中继器标识符的基带信号调制成RF信号。 中继器包括：用于接收RF信号的接收机; 用于将RF信号解调为基带信号的解调器; 用于均衡基带信号的均衡器; 加法器，用于将中继器标识符与基带信号相加; 调制器，用加法器中加入的中继器标识符将基带信号调制成RF信号; 以及用于发送在调制器中调制的RF信号的发射机。 本发明的技术用于在包括数字电视广播系统的任意传输系统中形成一个信道上重复网络。
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3.发明申请APPARATUS AND METHOD FOR CORRECTING NON-LINEAR DISTORTION BASED ON CHARACTERISTIC MODELING OF HIGH POWER AMPLIFIER 审中-公开基于大功率放大器特性建模的非线性失真校正装置及方法公开(公告)号：US20090219088A1
公开(公告)日：2009-09-03
申请号：US12089475
申请日：2006-09-28
申请人： Jae-Hyun Seo , Heung-Mook Kim , Yong-Tae Lee , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
发明人： Jae-Hyun Seo , Heung-Mook Kim , Yong-Tae Lee , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
IPC分类号： H03F1/26
CPC分类号： H04B1/04 , H03F1/3241 , H03F1/3247 , H04B2001/0425
摘要： An apparatus for correcting a non-linear distortion includes a pre-distorter for pre-distorting a transmit signal inputted from an external apparatus based on pre-distortion characteristics outputted from a pre-distortion characteristic predictor; a modulator for modulating the pre-distorted signal to thereby generate a modulated signal; a frequency up-converter for up-converting a frequency of the modulated signal to thereby generate an up-converted signal; a high power amplifier for amplifying the up-converted signal to a high power amplified signal; a frequency down-converter for down-converting a frequency of the high power amplified signal, thereby generate a down-converted signal; a demodulator for demodulating the down-converted signal, to thereby generate a demodulated signal; a high power amplifying characteristic predictor for predicting characteristics of the high power amplifier based on the pre-distorted signal and the demodulated signal; and a pre-distortion characteristic predictor for predicting the pre-distortion characteristics based on the pre-distorted signal and the predicted high power amplifying characteristics.
摘要翻译： 用于校正非线性失真的装置包括：预失真器，用于基于从预失真特性预测器输出的预失真特性来预失真从外部设备输入的发送信号; 调制器，用于调制预失真信号从而产生调制信号; 上变频器，用于上变频调制信号的频率，从而产生上变频信号; 用于将上变频信号放大到高功率放大信号的高功率放大器; 降频转换器，用于下变频大功率放大信号的频率，从而产生下变频信号; 解调器，用于解调下变频信号，从而产生解调信号; 用于基于预失真信号和解调信号来预测大功率放大器的特性的高功率放大特性预测器; 以及预失真特性预测器，用于基于预失真信号和预测的高功率放大特性预测预失真特性。
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公开(公告)号：US20090209201A1
公开(公告)日：2009-08-20
申请号：US11912536
申请日：2005-12-29
申请人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04B7/14
CPC分类号： H04B7/155 , H04B7/15564
摘要： Provided are an on-channel repeater and a method thereof. The on-channel repeater can extract reception channel information from signals transmitted from a main transmitter or another repeater, compensate for channel distortion caused on a transmission channel by inversely reflecting the extracted reception channel information to the received signals, and transmit the channel-distortion compensated signals through the same channel as a reception channel, and a method thereof. The on-channel repeater includes: a receiver for receiving RF signals transmitted from outside; a down-converter for down-converting the received RF signals into signals of a desired band; a channel-estimator for estimating an inverse value of a reception channel based on the down-converted signals; an adaptation filter for compensating for channel distortion by using a filter having the inverse value of the estimated reception channel; an up-converter for up-converting the channel distortion-compensated signals into RF signals; and a transmitter for transmitting the up-converted RF signals.
摘要翻译： 提供一种同频中继器及其方法。 同频中继器可以从主发射机或另一中继器发送的信号中提取接收信道信息，通过将所提取的接收信道信息反向反映到接收信号来补偿在传输信道上引起的信道失真，并发送信道失真补偿 通过与接收信道相同的信道发送信号，及其方法。 同频中继器包括：用于接收从外部发送的RF信号的接收机; 用于将所接收的RF信号下变频为期望频带的信号的下变频器; 用于基于下变频信号估计接收信道的反相值的信道估计器; 适应滤波器，用于通过使用具有估计的接收信道的逆值的滤波器来补偿信道失真; 用于将信道失真补偿信号上变频成RF信号的上变频器; 以及用于发送上变频的RF信号的发射机。
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5.发明授权公开(公告)号：US07773665B2
公开(公告)日：2010-08-10
申请号：US11579657
申请日：2005-05-12
申请人： Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Heung-Mook Kim , Jae-Hyun Seo , Sung-Ik Park , Soo-In Lee
发明人： Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Heung-Mook Kim , Jae-Hyun Seo , Sung-Ik Park , Soo-In Lee
摘要： Provided is a frequency synchronizing apparatus and method that can synchronize frequencies between receiving signals and transmitting signals by extracting a carrier error and sampling timing error information in a synchronization process of the receiving signal from a main transmitter or another repeater and reflecting them in the transmitting signal in an on-channel repeater. The apparatus includes a carrier recovery means for compensating a carrier frequency error of a receiving signal; a timing recovery means for compensating a sampling timing error of the receiving signal; a carrier error reflecting means for reflecting the carrier frequency error extracted from the carrier recovery means to a transmitting signal; and a timing error reflecting means for reflecting the sampling timing error extracted from the timing recovery means to the transmitting signal. The present invention is used to form an on-channel repeating network in any transmission system including a digital television broadcasting system.
摘要翻译： 提供一种频率同步装置和方法，其可以通过在来自主发射机或另一个中继器的接收信号的同步处理中提取载波误差和采样定时误差信息来同步接收信号和发射信号之间的频率并将其反射到发射信号中 在一个通道中继器。 该装置包括用于补偿接收信号的载波频率误差的载波恢复装置; 定时恢复装置，用于补偿接收信号的采样定时误差; 用于将从载波恢复装置提取的载波频率误差反映到发射信号的载波误差反射装置; 以及定时误差反映装置，用于将从定时恢复装置提取的采样定时误差反映到发射信号。 本发明用于在包括数字电视广播系统的任何传输系统中形成一个同信道重复网络。
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6.发明申请Pre-Equalization Apparatus and Method for Reducing Time Delay in On-Channel Repeater 审中-公开预均衡装置及减少上行中继器延时的方法公开(公告)号：US20080267266A1
公开(公告)日：2008-10-30
申请号：US12089468
申请日：2006-10-04
申请人： Heung-Mook Kim , Sung-Ik Park , Jae-Hyun Seo , Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Soo-In Lee
发明人： Heung-Mook Kim , Sung-Ik Park , Jae-Hyun Seo , Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Soo-In Lee
IPC分类号： H04L25/20
CPC分类号： H04L25/03343 , H04L25/03038 , H04L2025/03375 , H04L2025/03477
摘要： Provided is a pre-equalization apparatus and method that can reduce time delay of an on-channel repeater. The pre-equalization apparatus reduces time delay in an on-channel repeater by generating modified filter coefficient from a given filter coefficient and a pre-equalization filter coefficient after an up-sampling process and filtering up-sampled signals. The pre-equalization apparatus includes: a baseband signal generating unit for forming a baseband signal by combining an inputted signal, field sync signal, and segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; an up-sampling unit for up-sampling the baseband signal having the pilot signal; a pre-equalization filter coefficient generating unit for generating a pre-equalization filter coefficient; a modified filter coefficient generating unit for generating a modified filter coefficient by using the pre-equalization filter coefficient and a given filter coefficient; and a filtering unit for filtering the up-sampled signal by using the modified filter coefficient.
摘要翻译： 提供了一种可以减少同信道中继器的时间延迟的预均衡装置和方法。 预均衡装置通过从上采样处理产生修正的滤波器系数和预均衡滤波器系数，并对上采样信号进行滤波，从而减少同频中继器的时延。 预均衡装置包括：基带信号生成单元，用于通过组合输入信号，场同步信号和分段同步信号来形成基带信号; 导频添加单元，用于向所述基带信号添加导频信号; 上采样单元，用于对具有导频信号的基带信号进行上采样; 预均衡滤波器系数产生单元，用于产生预均衡滤波器系数; 修正滤波器系数生成单元，用于通过使用预均衡滤波器系数和给定的滤波器系数来生成修正的滤波器系数; 以及滤波单元，用于通过使用修正的滤波器系数对上采样信号进行滤波。
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公开(公告)号：US20080298295A1
公开(公告)日：2008-12-04
申请号：US10586825
申请日：2004-12-31
申请人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04B7/14
CPC分类号： H04N21/6112 , H04N5/40
摘要： Provided is a modulating apparatus and method of an on-channel repeater. An object of the present invention is to provide a modulating apparatus of an on-channel repeater for reducing time delay by configuring and up-sampling a baseband signal, filtering the up-sampled baseband signal with an Equi-Ripple (ER) filter or in a window method, and converting the filtered baseband signal into an RF signal. The modulating apparatus includes: a baseband signal configuring unit for configuring a baseband, signal by combining an input field and a segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; a filtering unit for filtering the baseband signal with the pilot signal; and an RF up-converting unit for up-converting the filtered signal into an RF signal. The present invention is used to form an on-channel repeating network in a transmitting system including a digital TV broadcasting system.
摘要翻译： 提供了一种频道内中继器的调制装置和方法。 本发明的目的是提供一种通道内中继器的调制装置，用于通过对基带信号进行配置和上采样来减少时间延迟，用等波纹（ER）滤波器对上采样基带信号进行滤波，或者 窗口方法，并将滤波后的基带信号转换为RF信号。 调制装置包括：基带信号配置单元，用于通过组合输入字段和段同步信号来配置基带信号; 导频添加单元，用于向所述基带信号添加导频信号; 滤波单元，用于利用导频信号对基带信号进行滤波; 以及用于将经滤波的信号上变频为RF信号的RF上变频单元。 本发明用于在包括数字电视广播系统的发射系统中形成一个信道上重复网络。
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公开(公告)号：US20070224934A1
公开(公告)日：2007-09-27
申请号：US11579789
申请日：2004-12-31
申请人： Jae-Hyun Seo , Yong-Tae Lee , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
发明人： Jae-Hyun Seo , Yong-Tae Lee , Heung-Mook Kim , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
IPC分类号： H04N7/015
CPC分类号： H04L25/242 , H04B7/155 , H04L2025/03375 , H04N5/211 , H04N5/38
摘要： Provided are an on-channel repeater and a method thereof. The repeater receives signals on one channel and distributes the signals on the same channel by converting RF signals from a main transmitter into baseband signals; equalizing them in a high-performance equalizer, adding a repeater identifier to them; modulating the baseband signals with the repeater identifier into RF signals. The repeater includes: a receiver for receiving RF signals; a demodulator for demodulating the RF signals into baseband signals; an equalizer for equalizing the baseband signals; an adder for adding a repeater identifier to the baseband signals; a modulator for modulating the baseband signals with the repeater identifier added in the adder into RF signals; and a transmitter for transmitting the RF signals modulated in the modulator. The technology of the present invention is used to form an on-channel repeating network in an arbitrary transmission system including a digital television broadcasting system.
摘要翻译： 提供一种同频中继器及其方法。 中继器在一个信道上接收信号，并通过将主发射机的射频信号转换为基带信号将信号分配到同一信道上; 在高性能均衡器中均衡，向其中添加中继器标识符; 将具有中继器标识符的基带信号调制成RF信号。 中继器包括：用于接收RF信号的接收机; 用于将RF信号解调为基带信号的解调器; 用于均衡基带信号的均衡器; 加法器，用于将中继器标识符与基带信号相加; 调制器，用加法器中加入的中继器标识符将基带信号调制成RF信号; 以及用于发送在调制器中调制的RF信号的发射机。 本发明的技术用于在包括数字电视广播系统的任意传输系统中形成一个信道上重复网络。
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公开(公告)号：US08094603B2
公开(公告)日：2012-01-10
申请号：US10586825
申请日：2004-12-31
申请人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
发明人： Sung-Ik Park , Yong-Tae Lee , Ho-Min Eum , Heung-Mook Kim , Jae-Hyun Seo , Seung-Won Kim , Soo-In Lee
IPC分类号： H04J1/10
CPC分类号： H04N21/6112 , H04N5/40
摘要： Provided is a modulating apparatus and method of an on-channel repeater. An object of the present invention is to provide a modulating apparatus of an on-channel repeater for reducing time delay by configuring and up-sampling a baseband signal, filtering the up-sampled baseband signal with an Equi-Ripple (ER) filter or in a window method, and converting the filtered baseband signal into an RF signal. The modulating apparatus includes: a baseband signal configuring unit for configuring a baseband. signal by combining an input field and a segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; a filtering unit for filtering the baseband signal with the pilot signal; and an RF up-converting unit for up-converting the filtered signal into an RF signal. The present invention is used to form an on-channel repeating network in a transmitting system including a digital TV broadcasting system.
摘要翻译： 提供了一种频道内中继器的调制装置和方法。 本发明的目的是提供一种通道内中继器的调制装置，用于通过对基带信号进行配置和上采样来减少时间延迟，用等波纹（ER）滤波器对上采样基带信号进行滤波，或者 窗口方法，并将滤波后的基带信号转换为RF信号。 调制装置包括：用于配置基带的基带信号配置单元。 信号通过组合输入场和段同步信号; 导频添加单元，用于向所述基带信号添加导频信号; 滤波单元，用于利用导频信号对基带信号进行滤波; 以及用于将经滤波的信号上变频为RF信号的RF上变频单元。 本发明用于在包括数字电视广播系统的发射系统中形成一个信道上重复网络。
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10.发明申请公开(公告)号：US20090129450A1
公开(公告)日：2009-05-21
申请号：US11579657
申请日：2005-05-12
申请人： Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Heung-Mook Kim , Jae-Hyun Seo , Sung-Ik Park , Soo-In Lee
发明人： Ho-Min Eum , Yong-Tae Lee , Seung-Won Kim , Heung-Mook Kim , Jae-Hyun Seo , Sung-Ik Park , Soo-In Lee
IPC分类号： H04L25/52
摘要： Provided is a frequency synchronizing apparatus and method that can synchronize frequencies between receiving signals and transmitting signals by extracting a carrier error and sampling timing error information in a synchronization process of the receiving signal from a main transmitter or another repeater and reflecting them in the transmitting signal in an on-channel repeater. The apparatus includes a carrier recovery means for compensating a carrier frequency error of a receiving signal; a timing recovery means for compensating a sampling timing error of the receiving signal; a carrier error reflecting means for reflecting the carrier frequency error extracted from the carrier recovery means to a transmitting signal; and a timing error reflecting means for reflecting the sampling timing error extracted from the timing recovery means to the transmitting signal. The present invention is used to form an on-channel repeating network in any transmission system including a digital television broadcasting system.
摘要翻译： 提供一种频率同步装置和方法，其可以通过在来自主发射机或另一个中继器的接收信号的同步处理中提取载波误差和采样定时误差信息来同步接收信号和发射信号之间的频率并将其反射到发射信号中 在一个通道中继器。 该装置包括用于补偿接收信号的载波频率误差的载波恢复装置; 定时恢复装置，用于补偿接收信号的采样定时误差; 用于将从载波恢复装置提取的载波频率误差反映到发射信号的载波误差反射装置; 以及定时误差反映装置，用于将从定时恢复装置提取的采样定时误差反映到发射信号。 本发明用于在包括数字电视广播系统的任何传输系统中形成一个同信道重复网络。
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