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21. 发明专利

JP2013125982A Transmitting device and receiving device 有权
标题翻译：发送设备和接收设备
公开(公告)号：JP2013125982A
公开(公告)日：2013-06-24
申请号：JP2011271925
申请日：2011-12-13
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： SUZUKI YOICHI , HASHIMOTO AKINORI , KOJIMA MASAAKI , TANAKA SHOJI , KIMURA TAKESHI
IPC分类号： H04L27/00 , H03M13/25 , H04L27/34
摘要： PROBLEM TO BE SOLVED: To provide a transmitting device and a receiving device of digital data with excellent noise resistance.SOLUTION: A transmission device 10b according to the present invention comprises: an error correction coding section 16b for generating a code word sequence to which error correction is applied at a predetermined coding ratio; a mapping section 18b for converting an input symbol sequence including plural code word sequence into a signal point sequence on the basis of an aggregation division method including division for reducing a signal point logarithm of a minimum Euclidean distance; and an orthogonal modulation section 20 for orthogonally modulating the signal point sequence. A receiving device 50b according to the present invention comprises: an orthogonal demodulation section 51 for orthogonally demodulating modulation signals and outputting a receiving signal point sequence; logarithmic likelihood ratio calculation sections 54-1 to 54-5 for calculating likelihood information corresponding to each symbol configuration bit according to the aggregation division method; and error correction decoding sections 55-1 to 55-5 for decoding digital data according to the likelihood information.
摘要翻译：要解决的问题：提供具有优异抗噪声能力的数字数据的发送装置和接收装置。解决方案：根据本发明的传输设备10b包括：纠错编码部分16b，用于产生以预定编码比率应用纠错的码字序列; 映射部分18b，用于基于包括用于减小最小欧几里德距离的信号点对数的除法的聚合分割方法将包括多个码字序列的输入符号序列转换成信号点序列; 以及用于正交调制信号点序列的正交调制部分20。根据本发明的接收装置50b包括：正交解调部分51，用于对调制信号进行正交解调并输出接收信号点序列; 对数似然比计算部分54-1至54-5，用于根据聚合分割方法计算与每个符号配置位对应的似然信息; 以及根据似然信息对数字数据进行解码的纠错解码部55-1〜55-5。版权所有（C）2013，JPO＆INPIT

22. 发明专利

JP2012049735A Transmission apparatus of digital signal 有权
标题翻译：数字信号传输装置
公开(公告)号：JP2012049735A
公开(公告)日：2012-03-08
申请号：JP2010188828
申请日：2010-08-25
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： KOJIMA MASAAKI , HASHIMOTO AKINORI , KIMURA TAKESHI , SUZUKI YOICHI
IPC分类号： H04B1/04 , H04J11/00 , H04L27/34
摘要： PROBLEM TO BE SOLVED: To reduce deterioration of required C/N by correcting nonlinear distortion in a satellite repeater, etc. in a modulator side of a transmission apparatus in advance.SOLUTION: A transmission apparatus of an embodiment according to the present invention comprises: a pseudo transmission device (19) having the characteristics corresponding to the characteristics of an object apparatus on a transmission line; an amplitude phase calculating means (20) which generates a correction signal acquired by calculating a correction amplitude value and a correction phase value where an ideal amplitude value and an ideal phase value of an ideal IQ signal point are added to each sign-inverted value of a difference amplitude value and a difference phase value that are a difference between an amplitude value and a phase value where an IQ signal point of a digital signal output via the pseudo transmission device is converted into an amplitude and a phase and the ideal amplitude value and the ideal phase value where an corresponding ideal IQ signal point is converted into an amplitude and a phase, and by converting the correction amplitude value and the correction phase value into the IQ signal point; and an orthogonal modulation means (14) which carries out orthogonal modulation of the correction signal.
摘要翻译：解决的问题：通过预先在发送装置的调制器侧校正卫星转发器等的非线性失真来减少所需C / N的恶化。解决方案：根据本发明的实施例的发送装置包括：具有与传输线上的对象设备的特性对应的特性的伪传输设备（19）; 振幅相位计算装置（20），其生成通过计算修正振幅值而获得的校正信号和将理想IQ信号点的理想振幅值和理想相位值加到每个符号反转值的校正相位值作为通过伪发送装置输出的数字信号的IQ信号点的振幅值和相位值之间的差的差幅值和差相位值被转换成振幅和相位以及理想振幅值，以及将相应的理想IQ信号点转换成幅度和相位的理想相位值，并将校正振幅值和校正相位值转换为IQ信号点; 以及执行校正信号的正交调制的正交调制装置（14）。版权所有（C）2012，JPO＆INPIT

23. 发明专利

JP2010178308A Digital transmission system decoder, and receiving device 有权
标题翻译：数字传输系统解码器和接收设备
公开(公告)号：JP2010178308A
公开(公告)日：2010-08-12
申请号：JP2009021847
申请日：2009-02-02
申请人： Nippon Hoso Kyokai , 日本放送協会
发明人： SUZUKI YOICHI , HASHIMOTO AKINORI , KOJIMA MASAAKI , SUJIKAI HISASHI , TANAKA YOSHIJI , KIMURA TAKESHI
IPC分类号： H04B7/005 , H04B7/15 , H04L27/01
摘要： PROBLEM TO BE SOLVED: To provide a decoder for correcting data error after waveform equalization of digital transmission, and to provide a receiving device.
SOLUTION: The decoder includes: a training signal extraction part 58 for receiving and extracting, as a training signal, a signal obtained by modulating preliminarily specified known information, the specified known information being periodically transmitted; a training signal equalizer 60 for properly equalizing the extracted training signal by using a preliminarily prepared known pattern corresponding to the training signal, and for determining a filter coefficient for use in a main signal; a main signal equalizer 56 for operating the adaptive equalization processing of the main signal by using the filter coefficients without estimating the training signal from the received main signal; and a decoder for performing the error-correction of the post-waveform equalization main signal being obtained through the main signal equalizer 56.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在数字传输的波形均衡之后校正数据错误的解码器，并提供接收装置。解决方案：解码器包括：训练信号提取部分58，用于接收和提取周期性地发送指定的已知信息作为训练信号，通过调制预先指定的已知信息获得的信号; 训练信号均衡器60，用于通过使用与训练信号对应的预先准备的已知模式适当地均衡所提取的训练信号，并且确定用于主信号的滤波器系数; 主信号均衡器56，用于通过使用滤波器系数来操作主信号的自适应均衡处理，而不从接收到的主信号估计训练信号; 以及用于执行通过主信号均衡器56获得的后波形均衡主信号的纠错的解码器。版权所有：（C）2010，JPO＆INPIT

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