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    • 7. 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。
    • 8. 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。
    • 10. 发明申请
    • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN A COMMUNICATION SYSTEM
    • 用于在通信系统中发送/接收数据的装置和方法
    • US20110280285A1
    • 2011-11-17
    • US13105877
    • 2011-05-11
    • Jeongchang KIMSung-Ik ParkHeung-Mook Kim
    • Jeongchang KIMSung-Ik ParkHeung-Mook Kim
    • H04B1/707
    • H04J13/0003H04J13/10
    • An apparatus and a method for transmitting/receiving data generate main service data of broadcasting data, generate additional data of the broadcasting data, transform the additional data into a parallel type, generate pseudo-random noise sequences as a spreading code of the additional data, select polarities of the pseudo-random noise sequences using any one additional data bits in the additional data in the transformed parallel type, map the remaining additional data bits excluding the one additional data bit from the additional data in the transformed parallel type to a single sequence, multiply a single sequence to which the remaining additional data bits are mapped by pseudo-noise sequences of which the polarities are selected, control mean power of the additional data multiplied by the sequences, couple the additional data of which the mean power is controlled with the main service data, and then, transmit the broadcasting data.
    • 用于发送/接收数据的装置和方法产生广播数据的主服务数据,产生广播数据的附加数据,将附加数据变换为并行类型,生成伪随机噪声序列作为附加数据的扩展码, 使用变换的并行类型的附加数据中的任何一个附加数据位来选择伪随机噪声序列的极性,将除了一个附加数据位的剩余附加数据位从变换并行类型的附加数据映射到单个序列 ,通过选择极性的伪噪声序列乘以剩余的附加数据位映射到的单个序列,附加数据乘以序列的控制平均功率,将其平均功率被控制的附加数据与 主要业务数据,然后发送广播数据。