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    송신기 식별을 위한 식별부호 검출 장치 및 그 방법
    91.
    发明公开
    송신기 식별을 위한 식별부호 검출 장치 및 그 방법 失效
    用于发射机识别的标识符号检测装置及其方法

    公开(公告)号：KR1020060122656A

    公开(公告)日：2006-11-30

    申请号：KR1020050046346

    申请日：2005-05-31

    Applicant: 한국전자통신연구원 ,  연세대학교 산학협력단

    Inventor： 이용태 ,  서재현 ,  박성익 ,  음호민 ,  김흥묵 ,  김승원 ,  권순찬 ,  서종수 ,  이수인

    IPC: H04N5/50

    CPC classification number: H04N21/42623 ,  H04B1/76 ,  H04L25/03 ,  H04L2025/03382

    Abstract: An indication sign detection device for discerning a transmitter and a method thereof are provided to remove a pure digital TV signal from the entire digital TV signal. A D(Digital)TV data detecting member(601) performs a channel equalization process related to an output signal from a pilot removing member(205) of a digital TV receiver and detects only a digital TV signal within a band of 8 levels from the channel equalization signal. A DTV data remover(603) removes a digital TV signal within the band detected at the DTV data detection member. A channel equalizer(206) performs a channel equalization process of the output signal from the pilot removing member and compensates the channel. A data symbol device(602) detects only the digital TV signal within the band of 8 levels from the channel equalized signal.

    Abstract translation: 提供用于识别发射机的指示符号检测装置及其方法，以从整个数字电视信号中去除纯数字TV信号。 AD（数字）电视数据检测构件（601）执行与数字TV接收机的导频移除构件（205）的输出信号相关的信道均衡处理，并且仅从频道检测8级的频带内的数字TV信号 均衡信号。 DTV数据去除器（603）去除在DTV数据检测部件处检测到的频带内的数字TV信号。 信道均衡器（206）执行来自导频移除部件的输出信号的信道均衡处理，并补偿信道。 数据符号装置（602）仅从信道均衡信号检测8级的频带内的数字TV信号。

    디지털 방송의 판정 궤환 등화 장치 및 그 방법
    93.
    发明公开
    디지털 방송의 판정 궤환 등화 장치 및 그 방법 失效
    数字广播的决策反馈均衡设备及其方法

    公开(公告)号：KR1020040073345A

    公开(公告)日：2004-08-19

    申请号：KR1020040008891

    申请日：2004-02-11

    Applicant: 한국전자통신연구원

    Inventor： 박성익 ,  김형남 ,  이용태 ,  음호민 ,  서재현 ,  김승원 ,  안치득

    IPC: H04N7/015

    CPC classification number: H04L25/03057 ,  H03M13/256 ,  H03M13/4161 ,  H03M13/6331 ,  H03M13/6538 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/006 ,  H04L2025/03382 ,  H04L2025/0349 ,  H04L2025/03617

    Abstract: PURPOSE: A decision feedback equalizing device of digital broadcasting is provided to use a TCM(Trellis-Coded Modulation) decoder where a TBD(Trace Back Depth) is 1 as a symbol detector, thereby exactly deciding a symbol without a decoding delay. CONSTITUTION: An FFF(Feed Forward Filter)(200) and an FBF(Feedback Filter)(240) remove an interference component from a signal. A TCM decoder(220) decides a symbol for the signal passing through the FFF(200) and the FBF(240), wherein a TBD of the TCM decoder(220) is 1. An error calculator(280) calculates an error signal. A training sequence storage(260) prestores an appointed training sequence among received data.

    Abstract translation: 目的：提供数字广播的判定反馈均衡装置，使用TBD（跟踪深度）为1的TCM（网格编码调制）解码器作为符号检测器，从而精确地确定没有解码延迟的符号。 构成：FFF（前馈滤波器）（200）和FBF（反馈滤波器）（240）从信号中去除干扰分量。 TCM解码器（220）确定通过FFF（200）和FBF（240）的信号的符号，其中TCM解码器（220）的TBD为1.误差计算器（280）计算误差信号。 训练序列存储（260）预先接收所接收数据中的指定训练序列。

    단일주파수망을 이용한 지상파 디지털 방송 시스템 및 그방법
    94.
    发明公开
    단일주파수망을 이용한 지상파 디지털 방송 시스템 및 그방법 失效
    使用单频网络的地面数字广播系统及其方法

    公开(公告)号：KR1020040055548A

    公开(公告)日：2004-06-26

    申请号：KR1020030010624

    申请日：2003-02-20

    Applicant: 한국전자통신연구원

    Inventor： 박성익 ,  이용태 ,  김승원 ,  안치득

    IPC: H04N7/015

    CPC classification number: H04H20/67 ,  H04N21/2368 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4382 ,  H04N21/6112

    Abstract: PURPOSE: A terrestrial digital broadcasting system by using a single frequency network(SFN) and a method thereof are provided to synchronize an input signal of a transmitter by inserting a transmission synchronization signal into a header of TS(Transport Stream) periodically and initialize a memory by a separate switching unit of a trellis encoder, thereby solving ambiguity of the trellis encoder. CONSTITUTION: A broadcasting station(400) multiplexes image signal compressed by MPEG-2, voice compressed by dolby AC-3 and additional data signal by a multiplexer and transmits the multiplexed signal to the first and second transmitters(430,470) by TS as a digital data stream. The first and second transmitters(430,470) process the transmitted TS and broadcast to the first broadcasting region(450) and the second broadcasting region(490), respectively with the same frequency A.

    Abstract translation: 目的：提供一种使用单频网络（SFN）的地面数字广播系统及其方法，用于通过将传输同步信号周期性地插入TS（传输流）的头部来初始化存储器来同步发射机的输入信号 通过网格编码器的单独切换单元，从而解决网格编码器的模糊性。 构成：广播电台（400）通过多路复用器复用由MPEG-2压缩的图像信号，由dolby AC-3压缩的语音和附加数据信号，并将该多路复用信号作为数字信号发送到第一和第二发射机（430,470） 数据流。 第一和第二发射机（430,470）分别处理所发射的TS并以相同的频率A广播到第一广播区域（450）和第二广播区域（490）。

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