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    • 4. 发明授权
    • Co-channel feedback signal cancelling regenerative repeater of advanced television system committee
    • 同频信号反馈信号取消先进电视系统委员会的再生中继器
    • US08446936B2
    • 2013-05-21
    • US12733691
    • 2009-04-17
    • Yong-Soek KimSang-Gee KangYoung-Woo Suh
    • Yong-Soek KimSang-Gee KangYoung-Woo Suh
    • H04B1/38
    • H04B7/15585
    • Disclosed is a co-channel feedback signal cancelling regenerative repeater of the Advanced Television Systems Committee (ATSC) that extracts a predetermined reference value of feedback signal to be able to cancel the feedback signal among received signals, including: a signal receiving unit; a signal demodulating unit that converts frequency of a received signal and demodulates it into a baseband signal; an interference equalizing unit that corrects characteristics of the demodulated signal and cancels feedback signal; a channel equalizing unit that compensates for channel distortion of an original signal from which the feedback signal is cancelled; a modulating unit that modulates the channel distortion-compensated original signal and converts it into an analog signal; and a signal transmitting unit that converts the frequency of the modulated signal, controls and amplifies its gain, and transmits a regenerative transmission signal.
    • 公开了高级电视系统委员会(ATSC)的同信道反馈信号取消再生中继器,其提取反馈信号的预定参考值以能够消除接收信号中的反馈信号,包括:信号接收单元; 信号解调单元,其对接收信号的频率进行转换并将其解调为基带信号; 干扰均衡单元,其校正解调信号的特性并消除反馈信号; 信道均衡单元,其补偿反馈信号被消除的原始信号的信道失真; 调制单元,调制通道失真补偿原始信号并将其转换为模拟信号; 以及信号发送单元,其转换调制信号的频率,控制并放大其增益,并发送再生发送信号。
    • 5. 发明申请
    • CO-CHANNEL FEEDBACK SIGNAL CANCELLING REGENERATIVE REPEATER OF ADVANCED TELEVISION SYSTEM COMMITTEE
    • CO-CHANNEL FEEDBACK SIGNAL取消高级电视系统委员会的再生电视台
    • US20100194987A1
    • 2010-08-05
    • US12733691
    • 2009-04-17
    • Yong-Soek KimSang-Gee KangYoung-Woo Suh
    • Yong-Soek KimSang-Gee KangYoung-Woo Suh
    • H04N5/14
    • H04B7/15585
    • Disclosed is a co-channel feedback signal cancelling regenerative repeater of the Advanced Television Systems Committee (ATSC) that extracts a predetermined reference value of feedback signal to be able to cancel the feedback signal among received signals, including: a signal receiving unit; a signal demodulating unit that converts frequency of a received signal and demodulates it into a baseband signal; an interference equalizing unit that corrects characteristics of the demodulated signal and cancels feedback signal; a channel equalizing unit that compensates for channel distortion of an original signal from which the feedback signal is cancelled; a modulating unit that modulates the channel distortion-compensated original signal and converts it into an analog signal; and a signal transmitting unit that converts the frequency of the modulated signal, controls and amplifies its gain, and transmits a regenerative transmission signal, wherein the signal demodulating unit is configured to include a coupling that hands over the regenerative transmission signal of the signal transmitting unit separately from a system linked with the signal receiving unit, thereby making it possible to convert and demodulate the frequency of the regenerative transmission signal, and the interference equalizing unit is configured to estimate a reference value of feedback signal from the demodulated regenerative transmission signal, thereby making it possible to remove the feedback signal among the received signals. The channel equalizing unit corrects the distortion of the original signal due to a multipath and extracts the regenerative signal, thereby improving the quality of broadcasting repeating such as an image improvement of the repeated signal.
    • 公开了高级电视系统委员会(ATSC)的同信道反馈信号取消再生中继器,其提取反馈信号的预定参考值以能够消除接收信号中的反馈信号,包括:信号接收单元; 信号解调单元,其将接收信号的频率转换并将其解调为基带信号; 干扰均衡单元,其校正解调信号的特性并消除反馈信号; 信道均衡单元,其补偿反馈信号被消除的原始信号的信道失真; 调制单元,调制通道失真补偿原始信号并将其转换为模拟信号; 以及信号发送单元,其转换调制信号的频率,控制并放大其增益,并发送再生发送信号,其中信号解调单元被配置为包括耦合信号发送单元的再生发送信号 从与信号接收单元连接的系统分离,从而可以对再生发送信号的频率进行转换和解调,并且干扰均衡单元被配置为从解调的再生发送信号估计反馈信号的参考值,从而 使得可以在接收的信号中去除反馈信号。

      信道均衡单元通过多路径校正原始信号的失真,并提取再生信号,从而提高广播重复的质量,例如重复信号的图像改善 。