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公开(公告)号：US20130342764A1
公开(公告)日：2013-12-26
申请号：US14002996
申请日：2012-03-01
IPC分类号： H04N5/455
CPC分类号： H04N5/455 , H04L27/2647 , H04L65/00 , H04N21/4382 , H04N21/6112
摘要： The present technology relates to a signal processing device, a signal processing method, and a program capable of appropriately demodulating a desired signal from a multiplexed signal obtained by multiplexing a plurality of signals. A preamble signal is detected from a multiplexed signal obtained by multiplexing a plurality of signals. When information for discriminating each of the signals that is contained in the preamble signal indicates a first signal, demodulation by a demodulator is continued and the first signal is demodulated. When information for discriminating each of the signals that is contained in the preamble signal indicates a second signal, demodulation is not performed by stopping the demodulation by the demodulator. The present technology can be applied to a signal processing device that processes signals for digital broadcasting.
摘要翻译： 本技术涉及一种信号处理装置，信号处理方法以及能够从通过复用多个信号而获得的复用信号适当地解调所需信号的程序。 从通过复用多个信号获得的多路复用信号检测前导信号。 当用于识别前导信号中包含的每个信号的信息指示第一信号时，解调器继续进行解调，并解调第一信号。 当用于识别前导信号中包含的每个信号的信息指示第二信号时，不通过解调器停止解调来执行解调。 本技术可以应用于处理用于数字广播的信号的信号处理装置。
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公开(公告)号：US08509328B2
公开(公告)日：2013-08-13
申请号：US12836710
申请日：2010-07-15
IPC分类号： H04K1/10
CPC分类号： H04L27/2657 , H04L27/2662 , H04L27/2675 , H04L2027/0059 , H04L2027/0067
摘要： Disclosed herein is a reception apparatus including: an acquisition section configured to acquire an orthogonal frequency division multiplexing signal composed resultingly of signals transmitted by the orthogonal frequency division multiplexing method from a plurality of transmission apparatuses; a correction value calculation block configured to calculate a correction value for correcting a drift amount of the orthogonal frequency division multiplexing signal using the phase of either a first pilot signal or a second pilot signal extracted from the acquired orthogonal frequency division multiplexing signal, the first pilot signal being obtained from pilot signals which are in phase with one another coming from the plurality of transmission apparatuses, the second pilot signal being acquired from pilot signals which are out of phase with one another coming from the plurality of transmission apparatuses; and a correction block configured to correct the drift amount of the orthogonal frequency division multiplexing signal in accordance with the calculated correction value.
摘要翻译： 这里公开了一种接收装置，包括：获取部，被配置为从多个发送装置获取由正交频分复用方式发送的信号的正交频分复用信号; 校正值计算块，被配置为使用从所获取的正交频分复用信号中提取的第一导频信号或第二导频信号的相位来计算校正正交频分复用信号的漂移量的校正值，第一导频 从多个发送装置相互相位的导频信号获得信号，从与多个发送装置相互不同的导频信号取得第二导频信号; 以及校正块，被配置为根据所计算的校正值来校正正交频分复用信号的漂移量。
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公开(公告)号：US08374264B2
公开(公告)日：2013-02-12
申请号：US12836893
申请日：2010-07-15
IPC分类号： H04L27/28
CPC分类号： H04L27/2665 , H04L27/2659 , H04L27/266 , H04L27/2666 , H04L27/2675 , H04L27/2685
摘要： Disclosed herein is a signal processing apparatus, including: a computation device operable to perform transform computation adapted to Fourier-transform a time domain OFDM i.e., Orthogonal Frequency Division Multiplexing signal into a frequency domain OFDM signal; a processing device operable to perform carrier frequency offset detection adapted to detect an estimated carrier frequency offset that is an error of a carrier used for demodulation of the OFDM signal; and a carrier frequency offset correction device operable to perform carrier frequency offset correction adapted to correct the carrier frequency offset of the frequency domain OFDM signal in accordance with the estimated carrier frequency offset.
摘要翻译： 这里公开了一种信号处理装置，包括：计算装置，可操作用于执行适于将时域OFDM即正交频分复用信号傅立叶变换成频域OFDM信号的变换计算; 处理装置，可操作以执行载波频率偏移检测，其适于检测作为用于解调所述OFDM信号的载波的误差的估计载波频率偏移; 以及载波频率偏移校正装置，其可操作以执行适合于根据估计的载波频率偏移校正频域OFDM信号的载波频率偏移的载波频率偏移校正。
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4.发明授权Signal processing device, signal processing method, and program for selectively processing a desired broadcast signal from a plurality of received broadcast signals 有权信号处理装置，信号处理方法以及用于从多个接收到的广播信号中选择性地处理所需广播信号的程序公开(公告)号：US08885107B2
公开(公告)日：2014-11-11
申请号：US14002996
申请日：2012-03-01
CPC分类号： H04N5/455 , H04L27/2647 , H04L65/00 , H04N21/4382 , H04N21/6112
摘要： The present technology relates to a signal processing device, a signal processing method, and a program capable of appropriately demodulating a desired signal from a multiplexed signal obtained by multiplexing a plurality of signals. A preamble signal is detected from a multiplexed signal obtained by multiplexing a plurality of signals. When information for discriminating each of the signals that is contained in the preamble signal indicates a first signal, demodulation by a demodulator is continued and the first signal is demodulated. When information for discriminating each of the signals that is contained in the preamble signal indicates a second signal, demodulation is not performed by stopping the demodulation by the demodulator. The present technology can be applied to a signal processing device that processes signals for digital broadcasting.
摘要翻译： 本技术涉及一种信号处理装置，信号处理方法以及能够从通过复用多个信号而获得的复用信号适当地解调所需信号的程序。 从通过复用多个信号获得的多路复用信号检测前导信号。 当用于识别前导信号中包含的每个信号的信息指示第一信号时，解调器继续进行解调，并解调第一信号。 当用于识别前导信号中包含的每个信号的信息指示第二信号时，不通过解调器停止解调来执行解调。 本技术可以应用于处理用于数字广播的信号的信号处理装置。
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公开(公告)号：US20110019782A1
公开(公告)日：2011-01-27
申请号：US12836893
申请日：2010-07-15
IPC分类号： H04L27/06
CPC分类号： H04L27/2665 , H04L27/2659 , H04L27/266 , H04L27/2666 , H04L27/2675 , H04L27/2685
摘要： Disclosed herein is a signal processing apparatus, including: a computation device operable to perform transform computation adapted to Fourier-transform a time domain OFDM i.e., Orthogonal Frequency Division Multiplexing signal into a frequency domain OFDM signal; a processing device operable to perform carrier frequency offset detection adapted to detect an estimated carrier frequency offset that is an error of a carrier used for demodulation of the OFDM signal; and a carrier frequency offset correction device operable to perform carrier frequency offset correction adapted to correct the carrier frequency offset of the frequency domain OFDM signal in accordance with the estimated carrier frequency offset.
摘要翻译： 这里公开了一种信号处理装置，包括：计算装置，可操作用于执行适于将时域OFDM即正交频分复用信号傅立叶变换成频域OFDM信号的变换计算; 处理装置，可操作以执行载波频率偏移检测，其适于检测作为用于解调所述OFDM信号的载波的误差的估计载波频率偏移; 以及载波频率偏移校正装置，其可操作以执行适合于根据估计的载波频率偏移校正频域OFDM信号的载波频率偏移的载波频率偏移校正。
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公开(公告)号：US08509327B2
公开(公告)日：2013-08-13
申请号：US12836667
申请日：2010-07-15
申请人： Yuken Goto , Kenichi Kobayashi , Suguru Houchi
发明人： Yuken Goto , Kenichi Kobayashi , Suguru Houchi
IPC分类号： H04K1/00
CPC分类号： H04L27/2659 , H04L27/266 , H04L27/2666 , H04L27/2675 , H04L27/2685 , H04L2025/03414 , H04L2027/0053 , H04L2027/0071 , H04L2027/0095
摘要： Disclosed herein is a receiving apparatus including a preamble analyzer configured to receive a frame of DVB-T2 made up of an OFDM signal and analyze a preamble contained in the received frame; an offset detector configured to detect a fine offset and a coarse offset on the basis of the analyzed preamble; a carrier frequency corrector configured to execute carrier frequency correction on an OFDM time domain signal obtained by quadrature demodulation on the basis of the detected fine offset and the detected coarse offset; a determiner configured to determine whether the detection of the coarse offset has been completed; and a control signal outputter configured, if the detection of the coarse offset is determined to be completed, to output a control signal for feeding back the fine offset detected on the basis of an OFDM frequency domain signal obtained by FFT computation to the carrier frequency corrector.
摘要翻译： 本文公开了一种接收装置，包括：前置码分析器，被配置为接收由OFDM信号构成的DVB-T2帧，并分析接收帧中包含的前同步码; 偏移检测器，被配置为基于所分析的前导码来检测精细偏移和粗略偏移; 载波频率校正器，被配置为基于所检测到的精细偏移和检测到的粗略偏移，对通过正交解调获得的OFDM时域信号执行载波频率校正; 确定器，被配置为确定所述粗略偏移的检测是否已经完成; 以及控制信号输出器，被配置为如果粗略偏移的检测被确定为完成，则输出用于将基于通过FFT计算获得的OFDM频域信号检测到的精细偏移反馈到载波频率校正器的控制信号 。
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公开(公告)号：US20130329775A1
公开(公告)日：2013-12-12
申请号：US14001749
申请日：2012-03-07
申请人： Takashi Yokokawa , Yuken Goto , Kenichi Kobayashi
发明人： Takashi Yokokawa , Yuken Goto , Kenichi Kobayashi
IPC分类号： H04L27/26
CPC分类号： H04L27/2662 , H04L5/0023 , H04L5/0048 , H04L25/0232 , H04L25/03159 , H04L27/2605 , H04L27/2656 , H04L27/2657 , H04L27/2666 , H04L27/2675
摘要： The present technique relates to a receiving device, a receiving method, and a program for realizing a prompt start of data demodulation. A receiving device of one aspect of the present technique includes: a detecting unit that detects a first preamble signal from a frame signal having a frame structure that contains the first preamble signal indicating a frame partition, a second preamble signal containing control information to be used in processing a data signal, and the data signal, the second preamble signal being transmitted after the first preamble signal; an accumulating unit that accumulates the second preamble signal when the first preamble signal is detected; and a processing unit that processes the data signal based on the control information contained in the second preamble signal accumulated in the accumulating unit, the data signal being contained in the same frame as the second preamble signal accumulated in the accumulating unit. The present technique can be applied to a receiving device that receives data transmitted by an OFDM method such as DVB-T2.
摘要翻译： 本技术涉及一种用于实现数据解调的迅速启动的接收装置，接收方法和程序。 本技术的一个方面的接收装置包括：检测单元，其从具有包含指示帧分区的第一前导信号的帧结构的帧信号检测第一前导信号，包含要使用的控制信息的第二前同步码信号 在处理数据信号和所述数据信号时，所述第二前置信号在所述第一前置信号之后发送; 当检测到第一前置信号时，累加单元累积第二前导码信号; 以及处理单元，其基于累积在所述累积单元中的所述第二前同步码信号中包含的控制信息来处理所述数据信号，所述数据信号包含在与所述累积单元中累积的所述第二前同步码信号相同的帧中。 本技术可以应用于接收由诸如DVB-T2之类的OFDM方法发送的数据的接收装置。
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公开(公告)号：US08402332B2
公开(公告)日：2013-03-19
申请号：US12899773
申请日：2010-10-07
申请人： Yuken Goto , Kenichi Kobayashi , Kentaro Nakahara
发明人： Yuken Goto , Kenichi Kobayashi , Kentaro Nakahara
CPC分类号： H04L27/2656
摘要： Disclosed herein is a reception apparatus, including an acquisition section adapted to receive a signal which includes at least one of a first signal and a second signal which have different structures from each other except that the first and second signals have a preamble signal and acquire the preamble signal from the received signal; a detection section adapted to detect a value for correcting the signal using the signal; and a correction section adapted to correct, if it is decided based on the preamble signal acquired by the acquisition section that the signal is the first signal, the signal using the value detected by the detection section.
摘要翻译： 这里公开了一种接收装置，包括：接收装置，其适于接收除了第一和第二信号具有前导码信号之外，具有彼此不同的结构的第一信号和第二信号中的至少一个的信号，并且获取 来自接收信号的前导信号; 检测部分，用于检测使用该信号校正信号的值; 以及校正部，其适于根据由所述获取部获取的所述前导信号判定为所述第一信号，根据所述检测部检测出的值来校正所述信号。
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9.发明授权公开(公告)号：US08358722B2
公开(公告)日：2013-01-22
申请号：US12833409
申请日：2010-07-09
申请人： Tadaaki Yuba , Takuya Okamoto , Yuken Goto , Kenichi Kobayashi
发明人： Tadaaki Yuba , Takuya Okamoto , Yuken Goto , Kenichi Kobayashi
IPC分类号： H04L27/06
CPC分类号： H04L27/2675 , H04L27/2613 , H04L27/2659 , H04L27/2666 , H04L27/2672 , H04L27/2682 , H04L27/2685
摘要： Disclosed herein is a signal processing apparatus including a processing block configured to perform a carrier shift amount detection process for detecting a carrier shift amount constituting a carrier error used for demodulating an orthogonal frequency division multiplexing signal known as the OFDM signal; and a correction block configured to correct the OFDM signal in accordance with the carrier shift amount. The OFDM signal includes a first preamble signal including subcarriers, and a second preamble signal including subcarriers of which the spacing is narrower than the spacing of the subcarriers included in the first preamble signal. The second preamble signal includes pilot signals which are known signals located at intervals of a predetermined number of subcarriers. The processing block detects the carrier shift amount using a correlation of the subcarriers included in one such second preamble signal.
摘要翻译： 这里公开了一种信号处理装置，包括：处理块，被配置为执行用于检测构成用于解调称为OFDM信号的正交频分复用信号的载波误差的载波移位量的载波移位量检测处理; 以及校正块，被配置为根据载波移位量校正OFDM信号。 OFDM信号包括包括子载波的第一前导码信号和包括间隔窄于包括在第一前导信号中的子载波的间隔的子载波的第二前导码信号。 第二前导信号包括作为以预定数量的副载波间隔设置的已知信号的导频信号。 处理块使用包括在一个这样的第二前导信号中的子载波的相关性来检测载波移位量。
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公开(公告)号：US20110019101A1
公开(公告)日：2011-01-27
申请号：US12836667
申请日：2010-07-15
申请人： Yuken GOTO , Kenichi Kobayashi , Suguru Houchi
发明人： Yuken GOTO , Kenichi Kobayashi , Suguru Houchi
IPC分类号： H04N5/44
CPC分类号： H04L27/2659 , H04L27/266 , H04L27/2666 , H04L27/2675 , H04L27/2685 , H04L2025/03414 , H04L2027/0053 , H04L2027/0071 , H04L2027/0095
摘要： Disclosed herein is a receiving apparatus including a preamble analyzer configured to receive a frame of DVB-T2 made up of an OFDM signal and analyze a preamble contained in the received frame; an offset detector configured to detect a fine offset and a coarse offset on the basis of the analyzed preamble; a carrier frequency corrector configured to execute carrier frequency correction on an OFDM time domain signal obtained by quadrature demodulation on the basis of the detected fine offset and the detected coarse offset; a determiner configured to determine whether the detection of the coarse offset has been completed; and a control signal outputter configured, if the detection of the coarse offset is determined to be completed, to output a control signal for feeding back the fine offset detected on the basis of an OFDM frequency domain signal obtained by FFT computation to the carrier frequency corrector.
摘要翻译： 本文公开了一种接收装置，包括：前置码分析器，被配置为接收由OFDM信号构成的DVB-T2帧，并分析接收帧中包含的前同步码; 偏移检测器，被配置为基于所分析的前导码来检测精细偏移和粗略偏移; 载波频率校正器，被配置为基于所检测到的精细偏移和检测到的粗略偏移，对通过正交解调获得的OFDM时域信号执行载波频率校正; 确定器，被配置为确定所述粗略偏移的检测是否已经完成; 以及控制信号输出器，被配置为如果粗略偏移的检测被确定为完成，则输出用于将基于通过FFT计算获得的OFDM频域信号检测到的精细偏移反馈到载波频率校正器的控制信号 。
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