利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

60 条记录 (耗时 0.034 秒)

    Channel equalizer and digital television receiver using the same
    1.
    发明申请
    Channel equalizer and digital television receiver using the same 有权
    信道均衡器和数字电视接收机使用相同

    公开(公告)号：US20070058081A1

    公开(公告)日：2007-03-15

    申请号：US11595666

    申请日：2006-11-08

    申请人： Joon Kim ,  Sung Hong ,  In Choi ,  Kyung Kang ,  Jong Shin ,  Byoung Kim ,  Woo Kim ,  Jae Kim

    发明人： Joon Kim ,  Sung Hong ,  In Choi ,  Kyung Kang ,  Jong Shin ,  Byoung Kim ,  Woo Kim ,  Jae Kim

    IPC分类号： H04N5/00

    CPC分类号： H04N5/21 ,  H04L2025/0349 ,  H04N5/211

    摘要： Disclosed are a channel equalizer and digital television receiver using the same. The equalizer comprises a channel estimator, a channel distortion compensator and noise canceller. The channel estimator estimates an impulse response of a transmission channel from a received signal. The channel distortion compensator transforms and processes the received signal and the estimated impulse response. The noise canceller predicts and eliminates amplified noise generated during equalization.

    摘要翻译： 公开了使用其的信道均衡器和数字电视接收机。 均衡器包括信道估计器，信道失真补偿器和噪声消除器。 信道估计器从接收信号估计传输信道的脉冲响应。 信道失真补偿器对接收到的信号和估计的脉冲响应进行变换和处理。 噪声消除器预测并消除均衡期间产生的放大噪声。

    DTV TRANSMITTER AND METHOD OF CODING MAIN AND ENHANCED DATA IN DTV TRANSMITTER
    2.
    发明申请
    DTV TRANSMITTER AND METHOD OF CODING MAIN AND ENHANCED DATA IN DTV TRANSMITTER 有权
    数字电视发射机和数字电视发射机中主要和增强数据编码的方法

    公开(公告)号：US20070162835A1

    公开(公告)日：2007-07-12

    申请号：US11564821

    申请日：2006-11-29

    申请人： In Choi ,  Kyung Kang ,  Kook Kwak ,  Byoung Kim ,  Woo Kim ,  Jae Kim ,  Hyoung Lee ,  Jong Kim

    发明人： In Choi ,  Kyung Kang ,  Kook Kwak ,  Byoung Kim ,  Woo Kim ,  Jae Kim ,  Hyoung Lee ,  Jong Kim

    IPC分类号： H03M13/00

    CPC分类号： H03M13/27 ,  H03M13/2936 ,  H03M13/3972 ,  H04H20/31 ,  H04H20/95 ,  H04H60/07 ,  H04N19/30 ,  H04N21/23614 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/4382 ,  H04N21/8126

    摘要： A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting known data place holders to the data packets, and a multiplexer multiplexing the enhanced data packets with main data packets. It further includes an RS encoder which RS-codes the multiplexed data packets, and a data interleaver which interleaves the RS-coded data packets. The RS encoder adds systematic RS parity data to each main data packet and adds non-systematic RS parity place holders to each enhanced data packet. The RS encoder adds the RS parity place holders such that the RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet.

    摘要翻译： 数字电视发射机包括预处理器预处理增强数据，数据格式化器生成包括预处理数据的增强数据分组并将已知数据占位符插入到数据分组，以及复用多路复用增强数据分组与主数据分组 。 它还包括对复用的数据分组进行RS编码的RS编码器，以及交织RS编码的数据分组的数据交织器。 RS编码器将系统RS奇偶校验数据添加到每个主数据分组，并将非系统RS奇偶校验位保持器添加到每个增强数据分组。 RS编码器加上RS奇偶校验位置保持器，使得RS奇偶校验位置保持器放置在每个交织的增强数据分组内的增强数据之后。

    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN DTV RECEIVING SYSTEM
    3.
    发明申请
    CHANNEL EQUALIZER AND METHOD OF PROCESSING BROADCAST SIGNAL IN DTV RECEIVING SYSTEM 有权
    频道均衡器和数字电视接收系统中处理广播信号的方法

    公开(公告)号：US20070230580A1

    公开(公告)日：2007-10-04

    申请号：US11674099

    申请日：2007-02-12

    申请人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Woo Kim

    发明人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Woo Kim

    IPC分类号： H04N11/04

    CPC分类号： H03M13/2792 ,  H03M13/2906 ,  H03M13/2936 ,  H03M13/6538 ,  H04L1/0041 ,  H04L12/189 ,  H04L25/0212 ,  H04L25/0232 ,  H04L25/03159 ,  H04N5/21 ,  H04N5/38 ,  H04N5/40 ,  H04N5/455 ,  H04N7/12 ,  H04N19/00933 ,  H04N19/89 ,  H04N19/895 ,  H04N21/236 ,  H04N21/23614 ,  H04N21/631

    摘要： A channel equalizer includes a first transformer, an estimator, an average calculator, a second transformer, a coefficient calculator, a compensator, and a third transformer. The first transformer converts normal data into frequency domain data, where a known data sequence is periodically repeated in the normal data. The estimator estimates channel impulse responses (CIR) during known data intervals adjacent to each normal data block. The average calculator calculates an average value of the CIRs. The second transformer converts the average value into frequency domain data. The coefficient calculator calculates equalization coefficients using the average value, and the compensator compensates channel distortion of each normal data block using the coefficients. The third transformer converts the compensated data block into time domain data.

    摘要翻译： 信道均衡器包括第一变压器，估计器，平均计算器，第二变压器，系数计算器，补偿器和第三变压器。 第一变压器将正常数据转换成频域数据，其中在正常数据中周期性地重复已知的数据序列。 估计器在与每个正常数据块相邻的已知数据间隔期间估计信道脉冲响应（CIR）。 平均计算器计算CIR的平均值。 第二变压器将平均值转换为频域数据。 系数计算器使用平均值计算均衡系数，并且补偿器使用系数补偿每个正常数据块的信道失真。 第三变压器将补偿数据块转换为时域数据。

    Apparatus for channel equalization using multi antenna and method thereof
    4.
    发明申请
    Apparatus for channel equalization using multi antenna and method thereof 有权
    用于使用多天线的信道均衡的装置及其方法

    公开(公告)号：US20060034362A1

    公开(公告)日：2006-02-16

    申请号：US11116629

    申请日：2005-04-27

    申请人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Yong Suh ,  Woo Kim

    发明人： Byoung Kim ,  In Choi ,  Kyung Kang ,  Yong Suh ,  Woo Kim

    IPC分类号： H03H7/30 ,  H04K1/10 ,  H04B7/08 ,  H04B1/10

    CPC分类号： H04L25/03159 ,  H04B7/0842 ,  H04B7/0845 ,  H04L2025/03426

    摘要： The present invention provides an apparatus for channel equalization and method thereof, by which a digital signal received via a plurality of antennas is equalized. The present invention includes receiving digital transmission signals using a plurality of antennas, respectively, initializing equalizer coefficients and equalizing the received signals respectively, adding the equalized signals together, predicting a noise amplified in the equalizing step, and generating a final output signal by removing the predicted noise from a value resulting from adding the equalized signals together. Therefore, the present invention performs equalization using a plurality of antennas, thereby enhancing the signal to noise ratio of the final output and facilitating the equalization of the severely distorted channel.

    摘要翻译： 本发明提供了一种用于信道均衡的装置及其方法，通过多路天线接收的数字信号被均衡。 本发明包括分别使用多个天线接收数字传输信号，初始化均衡器系数并分别均衡接收的信号，将均衡的信号相加在一起，预测在均衡步骤中放大的噪声，并通过去除 将来自将均衡信号相加在一起的值预测的噪声。 因此，本发明使用多个天线执行均衡，从而提高最终输出的信噪比，并且有助于严重失真的信道的均衡。

    DTV TRANSMITTER AND METHOD OF CODING DATA IN DTV TRANSMITTER
    5.
    发明申请
    DTV TRANSMITTER AND METHOD OF CODING DATA IN DTV TRANSMITTER 有权
    数字电视发射机和数字电视发射机数据编码方法

    公开(公告)号：US20070098108A1

    公开(公告)日：2007-05-03

    申请号：US11551397

    申请日：2006-10-20

    申请人： In Choi ,  Kyung Kang ,  Hyoung Lee ,  Sung Hong

    发明人： In Choi ,  Kyung Kang ,  Hyoung Lee ,  Sung Hong

    IPC分类号： H04L27/00

    CPC分类号： H04N5/38 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/08 ,  H04L27/02 ,  H04N5/213 ,  H04N5/4401

    摘要： A DTV transmitter includes a pre-processor pre-processing supplemental data, a multiplexer multiplexing pre-processed data with main data, and a byte-symbol converter converting each data byte of the multiplexed data into a symbol. It further includes a symbol processor processing each supplemental data symbol outputted from the byte-symbol converter. It encodes one of upper and lower bits of each supplemental data symbol into first and second data bits, post-decodes the first data bit, and outputs the post-decoded data bit and the second data bit as a symbol. The DTV transmitter further includes a symbol-byte converter converting each symbol outputted from the symbol processor into a data byte.

    摘要翻译： DTV发射机包括预处理器预处理补充数据，多路复用多路复用预处理数据与主数据，以及字节符号转换器，将多路复用数据的每个数据字节转换成符号。 它还包括处理从字节符号转换器输出的每个补充数据符号的符号处理器。 它将每个补充数据符号的高位和低位之一编码为第一和第二数据位，对第一数据位进行后解码，并输出后解码数据位和第二数据位作为符号。 DTV发射机还包括将符号处理器输出的每个符号转换为数据字节的符号字节转换器。

    DTV TRANSMITTER AND METHOD OF CODING DATA IN DTV TRANSMITTER
    6.
    发明申请
    DTV TRANSMITTER AND METHOD OF CODING DATA IN DTV TRANSMITTER 有权
    数字电视发射机和数字电视发射机数据编码方法

    公开(公告)号：US20070195889A1

    公开(公告)日：2007-08-23

    申请号：US11623674

    申请日：2007-01-16

    申请人： Sung Hong ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong

    发明人： Sung Hong ,  In Choi ,  Kyung Kang ,  Kook Kwak ,  Young Hong

    IPC分类号： H04N11/02

    CPC分类号： H04L65/607 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/4382 ,  H04N21/43853 ,  H04N21/4405 ,  H04N21/64315 ,  H04N21/6433

    摘要： A DTV transmitter includes an encapsulation unit which encapsulates enhanced data having an internet protocol (IP) format into a plurality of addressable sections. The encapsulation unit inserts burst time information into each addressable section. The DTV transmitter further includes a first multiplexer multiplexing the encapsulated enhanced data with program and system information, a pre-processor pre-processing the multiplexed enhanced data, a data formatter generating enhanced data packets including the pre-processed data and inserting the known data into the enhanced data packets, and a second multiplexer generating one or more bursts of data by multiplexing the enhanced data packets.

    摘要翻译： DTV发射机包括封装单元，其将具有因特网协议（IP）格式的增强数据封装成多个可寻址部分。 封装单元将突发时间信息插入到每个可寻址部分。 DTV发射机还包括第一多路复用器将封装的增强数据与程序和系统信息进行多路复用，预处理器预处理复用的增强数据，生成包括预处理数据的增强数据分组并将已知数据插入到 所述增强数据分组，以及通过复用所述增强数据分组来生成一个或多个数据脉冲串的第二多路复用器。

    Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver
    7.
    发明申请
    Digital television transmitter/receiver and method of processing data in digital television transmitter/receiver 失效
    数字电视发射机/接收机和数字电视发射机/接收机处理数据的方法

    公开(公告)号：US20070136643A1

    公开(公告)日：2007-06-14

    申请号：US11514124

    申请日：2006-08-30

    申请人： Kyung Kang ,  In Choi ,  Kook Kwak ,  Ja Koo ,  Kyung Shin ,  Yong Suh ,  Young Hong ,  Sung Hong

    发明人： Kyung Kang ,  In Choi ,  Kook Kwak ,  Ja Koo ,  Kyung Shin ,  Yong Suh ,  Young Hong ,  Sung Hong

    IPC分类号： H03M13/00

    CPC分类号： H04N21/2383 ,  H03M13/1515 ,  H03M13/2936 ,  H04N21/4382

    摘要： A digital television (DTV) transmitter/receiver and a method of processing data in the DTV transmitter/receiver are disclosed. In the DTV transmitter, a pre-processor pre-processes the enhanced data by coding the enhanced data for forward error correction (FEC) and expanding the FEC-coded enhanced data. A data formatter generates enhanced data packets including the pre-processed enhanced data and inserts known data to at least one of the enhanced data packets. A first multiplexer multiplexes the enhanced data packets with main data packets including the main data. And, an RS encoder RS-codes the multiplexed main and enhanced data packets, the RS encoder adding systematic parity data to each main data packet and adding RS parity place holders to each enhanced data packet. Herein, the RS encoder may insert non-systematic RS parity data or null data into the RS parity place holders included in each enhanced data packet.

    摘要翻译： 公开了一种数字电视（DTV）发射机/接收机以及在DTV发射机/接收机中处理数据的方法。 在DTV发射机中，预处理器通过对用于前向纠错（FEC）的增强数据进行编码并扩展FEC编码的增强数据来对处理增强数据进行预处理。 数据格式化器产生包括预处理的增强数据的增强数据分组，并将已知数据插入到增强数据分组中的至少一个。 第一复用器将增强的数据分组与包括主数据的主数据分组复用。 并且，RS编码器对多路复用的主增强数据包进行RS编码，RS编码器将系统奇偶校验数据添加到每个主数据分组，并将RS奇偶校验位保持器添加到每个增强数据分组。 这里，RS编码器可以将非系统RS奇偶校验数据或空数据插入到包括在每个增强数据分组中的RS奇偶校验位保持器中。