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    • 6. 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。
    • 7. 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
    • US20110292810A1
    • 2011-12-01
    • US13115238
    • 2011-05-25
    • You-Seok LEESung-Ik PARKJae-Hyun SEOHeung-Mook KIM
    • You-Seok LEESung-Ik PARKJae-Hyun SEOHeung-Mook KIM
    • H04W4/00H04W24/00
    • H04W52/225H04W4/06
    • A data transmission apparatus of a communication system includes a main data generator configured to generate main data corresponding to a main broadcasting service of broadcasting services; a main signal generator configured to generate a main signal of the main data; an additional data generator configured to generate a plurality of additional data corresponding to various additional services of the broadcasting services; an additional signal generator configured to generate a plurality of additional signals of the plurality of additional data; a power controller configured to control average power of the plurality of additional signals; a coupler configured to couple the main signal and the plurality of additional signals controlled in the average power thereof, and generate a broadcasting signal; and a transmitter configured to transmit the broadcasting signal.
    • 通信系统的数据发送装置包括:主数据发生器,被配置为生成与广播业务的主广播业务对应的主数据; 主信号发生器,被配置为产生主数据的主信号; 配置为生成对应于所述广播服务的各种附加服务的多个附加数据的附加数据发生器; 配置为生成所述多个附加数据的多个附加信号的附加信号发生器; 功率控制器,被配置为控制所述多个附加信号的平均功率; 耦合器,被配置为耦合主信号和以其平均功率控制的多个附加信号,并产生广播信号; 以及被配置为发送广播信号的发射机。
    • 8. 发明授权
    • On-channel repeating apparatus and method for terrestrial digital television broadcasting service
    • 用于地面数字电视广播业务的在线重复装置和方法
    • US07809048B2
    • 2010-10-05
    • US10750029
    • 2003-12-30
    • Sung-Ik ParkYong-Tae LeeSeung-Won KimSoo-In LeeHo-Min EumJae-Hyun Seo
    • Sung-Ik ParkYong-Tae LeeSeung-Won KimSoo-In LeeHo-Min EumJae-Hyun Seo
    • H04B3/36
    • H04N21/6112H04H20/06H04N5/211H04N5/40H04N5/4401H04N5/455
    • A repeater and method for an ATSC terrestrial digital TV broadcasting service. The on-channel repeater includes: a receiving unit for receiving a Radio Frequency (RF) broadcast signal from a main transmitter; a frequency downlink converting unit for converting the received RF broadcast signal into an intermediate frequency (IF) signal; a demodulating unit for converting the converted IF signal into a baseband signal; an equalizing unit for removing noise and multi-path signals generated from the converted baseband signal; a modulating unit for converting the baseband signal into an IF signal; a frequency uplink converting unit for converting the IF signal into a RF broadcast signal; a high power amplifying unit for amplifying and repeating the converted RF broadcast signal; a transmitting unit for transmitting the RF broadcast signal outputted from the high power amplifying unit; and a signal synchronizing unit for generating the first reference frequency, and generating the second reference frequency based on the first reference frequency such that the transmission/reception signal are frequency-and-phase synchronized.
    • ATSC地面数字电视广播业务的中继器和方法。 所述同频中继器包括:接收单元,用于从主发射机接收射频(RF)广播信号; 频率下行链路转换单元,用于将所接收的RF广播信号转换成中频(IF)信号; 解调单元,用于将转换的IF信号转换为基带信号; 用于去除从转换的基带信号产生的噪声和多路径信号的均衡单元; 用于将基带信号转换成IF信号的调制单元; 频率上行转换单元,用于将IF信号转换成RF广播信号; 用于放大并重复所转换的RF广播信号的高功率放大单元; 发送单元,用于发送从高功率放大单元输出的RF广播信号; 以及信号同步单元,用于产生第一参考频率,并且基于第一参考频率产生第二参考频率,使得发送/接收信号是同频同步的。
    • 9. 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。