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    • 1. 发明申请
    • RELAY APPARATUS FOR TRANSMITTING ANCILLARY DATA FOR A TERRESTRIAL DIGITAL TELEVISION BROADCAST, AND METHOD FOR SAME
    • 用于传送陆地数字电视广播的辅助数据的继电装置及其方法
    • WO2011043544A3
    • 2011-07-21
    • PCT/KR2010006078
    • 2010-09-08
    • KOREA ELECTRONICS TELECOMMSEO JAE-HYUNPARK SUNG-IKEUM HO-MINLIM HYOUNGSOOKIM HEUNG-MOOK
    • SEO JAE-HYUNPARK SUNG-IKEUM HO-MINLIM HYOUNGSOOKIM HEUNG-MOOK
    • H04H20/02H04N7/015H04N7/08
    • H04H20/02H04N7/08H04N21/2383H04N21/4382
    • 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.
    • 本发明涉及一种用于发送辅助数据的中继装置及其方法,尤其涉及一种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设备包括: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,将接收的信号下变频为中频(IF)信号,并解调IF信号; 均衡单元,用于从接收和处理单元输出的信号中去除噪声和多径信号,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加到从均衡单元输出的DTV信号上; 以及发射和处理单元,用于调制来自加法器的输出,将调制输出上变频成发射RF频带,放大发射功率,并通过发射天线发射放大的功率。
    • 7. 发明申请
    • ON-CHANNEL REPEATER AND ON-CHANNEL REPEATING METHOD
    • 通道重发器和通道重复方法
    • WO2008140163A1
    • 2008-11-20
    • PCT/KR2007/005647
    • 2007-11-09
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEPARK, Sung-IkKIM, Heung-MookLEE, Jae-YoungSEO, Jae-HyunEUM, Ho-MinLEE, Yong-TaeLIM, Jong-SooLEE, Soo-In
    • PARK, Sung-IkKIM, Heung-MookLEE, Jae-YoungSEO, Jae-HyunEUM, Ho-MinLEE, Yong-TaeLIM, Jong-SooLEE, Soo-In
    • H04B7/14
    • H04B7/15585
    • Provided is an on-channel repeater, which removes feedback signals caused due to low isolation of transmission/reception antennas and a method thereof. The on-channel repeater includes : a receiver for receiving radio frequency (RF) signals and converting them into baseband signals; a subtractor for subtracting replicas of feedback signals from the baseband signals to thereby produce signals whose feedback signals are primarily removed; a demodulator for demodulating the signals which include the remaining feedback signals; an equalizer for equalizing the demodulated signals to thereby produce equalized signals; a transmitter for modulating the equalized signals to thereby produce modulated signals, converting the modulated signals into RF signals, and transmitting the RF signals in the air; a down-converter for down-converting the RF signals into baseband signals; and a replica generator for calculating the replicas based on the baseband signals of the down- converter and the signals without feedback signals of the subtractor, and feeding back them to the subtractor.
    • 提供一种同信道中继器,其消除由于发送/接收天线的低隔离引起的反馈信号及其方法。 同频中继器包括:用于接收射频(RF)信号并将其转换成基带信号的接收机; 减法器,用于从基带信号减去反馈信号的副本,从而产生其反馈信号被主要去除的信号; 解调器,用于解调包括剩余反馈信号的信号; 均衡器,用于均衡解调的信号,从而产生均衡的信号; 用于调制均衡信号从而产生调制信号的发射机,将调制信号转换为RF信号,并在空中传送RF信号; 用于将RF信号下变频为基带信号的下变频器; 以及用于基于下变频器的基带信号和没有减法器的反馈信号的信号来计算副本的副本生成器,并将其反馈到减法器。