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    • 21. 发明申请
    • Apparatus and Method of On-Channel Repeater
    • 在线直放站的设备和方法
    • US20070224934A1
    • 2007-09-27
    • US11579789
    • 2004-12-31
    • Jae-Hyun SeoYong-Tae LeeHeung-Mook KimHo-Min EumSung-Ik ParkSeung-Won KimSoo-In Lee
    • Jae-Hyun SeoYong-Tae LeeHeung-Mook KimHo-Min EumSung-Ik ParkSeung-Won KimSoo-In Lee
    • H04N7/015
    • H04L25/242H04B7/155H04L2025/03375H04N5/211H04N5/38
    • 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.
    • 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。
    • 24. 发明申请
    • ON-CHANNEL REPEATER AND ON-CHANNEL REPEATING METHOD
    • 通道重发器和通道重复方法
    • US20100221998A1
    • 2010-09-02
    • US12669815
    • 2007-11-09
    • Sung-Ik ParkHeung-Mook KimHo-Min EumJae-Hyun SeoJae-Young LeeYong-Tae LeeJong-Soo LimSoo-In Lee
    • Sung-Ik ParkHeung-Mook KimHo-Min EumJae-Hyun SeoJae-Young LeeYong-Tae LeeJong-Soo LimSoo-In Lee
    • H04B7/14
    • H04B7/15585H04B1/525
    • Provided are an on-channel repeater and method for increasing output of the on-channel repeater by removing feed-back signals caused by low isolation of transmission/reception antennas. The on-channel repeater includes: a receiver for receiving RF signals and converting the RF signals into baseband signals; a subtractor for subtracting replicas of feedback signals from the received signal; an inverse channel estimator for estimating inverse of a reception channel and generating a filter tab coefficients; a first adaptive filter for compensating for channel distortion of the subtracted signal; a transmitter for converting the signals whose channel distortion is compensated into an RF signal and performing radio transmission; a down-converter for down-converting the RF signal converted by the transmitter into the baseband signal; and a replica generator for calculating replicas and feeding back the replicas to the subtractor. The present invention is applied to the on-channel repeater.
    • 提供一种通道中继器和方法,用于通过去除由发送/接收天线的低隔离引起的反馈信号来增加在线中继器的输出。 同频中继器包括:用于接收RF信号并将RF信号转换成基带信号的接收机; 减法器,用于从接收信号中减去反馈信号的副本; 反向信道估计器,用于估计接收信道的反向并产生滤波器选项卡系数; 用于补偿所述减去的信号的信道失真的第一自适应滤波器; 用于将其信道失真补偿的信号转换成RF信号并执行无线电传输的发射机; 用于将由发射机转换的RF信号下变频为基带信号的下变频器; 以及用于计算副本并将副本反馈给减法器的副本生成器。 本发明应用于同频中继器。
    • 26. 发明授权
    • Apparatus and method for modulating of on-channel repeater
    • 用于调制通道中继器的装置和方法
    • US08094603B2
    • 2012-01-10
    • US10586825
    • 2004-12-31
    • Sung-Ik ParkYong-Tae LeeHo-Min EumHeung-Mook KimJae-Hyun SeoSeung-Won KimSoo-In Lee
    • Sung-Ik ParkYong-Tae LeeHo-Min EumHeung-Mook KimJae-Hyun SeoSeung-Won KimSoo-In Lee
    • H04J1/10
    • H04N21/6112H04N5/40
    • 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.
    • 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。
    • 27. 发明申请
    • Apparatus and method for corresponding frequency synchronization in on-channel repeater
    • 通道中继器对应频率同步的装置和方法
    • US20090129450A1
    • 2009-05-21
    • US11579657
    • 2005-05-12
    • Ho-Min EumYong-Tae LeeSeung-Won KimHeung-Mook KimJae-Hyun SeoSung-Ik ParkSoo-In Lee
    • Ho-Min EumYong-Tae LeeSeung-Won KimHeung-Mook KimJae-Hyun SeoSung-Ik ParkSoo-In Lee
    • H04L25/52
    • H04H20/02H03J7/04H04B7/15528H04H20/67H04H20/72H04W56/00
    • 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.
    • 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。
    • 28. 发明申请
    • RELAY APPARATUS FOR TRANSMITTING ANCILLARY DATA FOR A TERRESTRIAL DIGITAL TELEVISION BROADCAST, AND METHOD FOR SAME
    • 用于发送陆地数字电视广播的附加数据的中继装置及其方法
    • US20120185909A1
    • 2012-07-19
    • US13498697
    • 2010-09-08
    • Jae-Hyun SeoSung-Ik ParkHo-Min EumHyoungsoo LmiHeung-Mook Kim
    • Jae-Hyun SeoSung-Ik ParkHo-Min EumHyoungsoo LmiHeung-Mook Kim
    • H04N21/61
    • H04H20/02H04H60/73H04N5/38
    • The present invention relates to a relay apparatus for transmitting ancillary data and to a method for same, and particularly, to a relay apparatus for transmitting ancillary data for a terrestrial digital television broadcast and to a method for same. The apparatus according to one embodiment of the present invention comprises: a relay apparatus for relaying a digital broadcast (DTV) signal containing ancillary data; a receiving and processing unit for receiving the ancillary data and DTV signal via a receiving antenna, down-converting the received signal into an intermediate frequency (IF) signal, and demodulating the IF signal; an equalizing unit for removing noise and a multipath signal from the signal output from the receiving and processing unit, and outputting the resulting signal; an ancillary data extraction unit for extracting the ancillary data from the signal output from the equalizing unit, and outputting the extracted ancillary data; an adder for adding the output from the ancillary data extraction unit to the DTV signal output from the equalization unit; and a transmitting and processing unit for modulating the output from the adder, up-converting the modulated output into a transmitting RF band, amplifying the transmitting power, and transmitting the amplified power via a transmitting antenna.
    • 本发明涉及用于发送辅助数据的中继装置及其方法,特别涉及用于发送用于地面数字电视广播的辅助数据的中继装置及其方法。 根据本发明的一个实施例的装置包括:中继装置,用于中继包含辅助数据的数字广播(DTV)信号; 接收和处理单元,用于经由接收天线接收辅助数据和DTV信号,将接收信号下变频为中频(IF)信号,并解调IF信号; 用于从接收和处理单元输出的信号中去除噪声的均衡单元和多径信号,并输出结果信号; 辅助数据提取单元,用于从均衡单元输出的信号中提取辅助数据,并输出提取的辅助数据; 加法器,用于将来自辅助数据提取单元的输出与从均衡单元输出的DTV信号相加; 以及用于调制来自加法器的输出的发送和处理单元,将调制的输出上变频为发送RF频带,放大发送功率,以及经由发送天线发送放大的功率。