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21. 发明申请

US20110019782A1 SIGNAL PROCESSING APPARATUS AND METHOD 有权
标题翻译：信号处理装置和方法
公开(公告)号：US20110019782A1
公开(公告)日：2011-01-27
申请号：US12836893
申请日：2010-07-15
申请人： Kenichi Kobayashi , Yuken Goto , Takuya Okamoto , Lachlan Bruce Michael
发明人： Kenichi Kobayashi , Yuken Goto , Takuya Okamoto , Lachlan Bruce Michael
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。

22. 发明申请

US20110013729A1 SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND RECEPTION SYSTEM 有权
标题翻译：信号处理装置，信号处理方法和接收系统
公开(公告)号：US20110013729A1
公开(公告)日：2011-01-20
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： H04L27/22 , 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。第二前置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。

23. 发明授权

US09344126B2 Receiving apparatus, receiving method, and program 有权
标题翻译：接收设备，接收方法和程序
公开(公告)号：US09344126B2
公开(公告)日：2016-05-17
申请号：US14003664
申请日：2012-03-29
申请人： Hiroo Takahashi , Yuken Goto , Takuya Okamoto
发明人： Hiroo Takahashi , Yuken Goto , Takuya Okamoto
IPC分类号： H04B1/10 , H04N5/44 , H04N5/50 , H04N21/426 , H04N21/61 , H04L27/26 , H04H20/76 , H04H20/93 , H04L1/20
CPC分类号： H04B1/1036 , H04H20/76 , H04H20/93 , H04L1/20 , H04L27/2655 , H04L27/2666 , H04L27/2685 , H04N5/4401 , H04N5/50 , H04N21/42607 , H04N21/6118
摘要： Disclosed are a receiving apparatus, a receiving method, and a program capable of reliably obtaining predetermined information. In a case where a broadband signal where the same control information is arranged in different frequency bands is received and processed, a frequency where the control information is stably received is detected, and the control information is obtained again using the detected frequency. This frequency detection is performed by detecting a frequency capable of avoiding a no-signal band in a signal array of the broadband signal determined based on the obtained control information and the like. This technology can be applied to a receiving apparatus that receives a signal conforming to a DVB-C2 standard.
摘要翻译：公开了能够可靠地获得预定信息的接收装置，接收方法和程序。接收并处理在不同频带中布置相同控制信息的宽带信号的情况下，检测到稳定地接收控制信息的频率，并且使用检测到的频率再次获得控制信息。通过检测能够避免基于所获得的控制信息等所确定的宽带信号的信号阵列中的无信号频带的频率来执行该频率检测。该技术可以应用于接收符合DVB-C2标准的信号的接收装置。

24. 发明授权

US08488695B2 Receiving apparatus and method, program, and receiving system 有权
标题翻译：接收装置和方法，程序和接收系统
公开(公告)号：US08488695B2
公开(公告)日：2013-07-16
申请号：US12958912
申请日：2010-12-02
申请人： Takashi Yokokawa , Tadaaki Yuba , Hidetoshi Kawauchi , Hitoshi Sakai , Yuken Goto , Suguru Houchi
发明人： Takashi Yokokawa , Tadaaki Yuba , Hidetoshi Kawauchi , Hitoshi Sakai , Yuken Goto , Suguru Houchi
IPC分类号： H04K1/10
CPC分类号： H04L25/02 , H04L25/0232 , H04L2025/03414
摘要： A receiving apparatus for receiving an orthogonal frequency division multiplexing (OFDM) signal including a frame having one frame length of a plurality of patterns. The apparatus comprises an acquiring section to acquire information regarding a preamble signal from an OFDM signal from a transmitting apparatus; a frame determining section to determine whether the one frame length is short in the frame based on the information regarding the acquired preamble signal; and a time interpolating section to obtain transmission path characteristics by comparing a pilot contained in the preamble signal with a known pilot corresponding to the pilot in a phase of transmission, when the frame determining section determines that the one frame length is short in the frame, and to interpolate a data portion in a time direction based on transmission path characteristics.
摘要翻译：一种用于接收正交频分多路复用（OFDM）信号的接收装置，包括具有多个模式的一帧长度的帧。该装置包括：获取部分，从发送装置获取来自OFDM信号的关于前导码信号的信息; 帧确定部分，用于基于关于所获取的前导信号的信息来确定帧中的一个帧长度是否短; 以及时间内插部分，当帧确定部分确定帧中的一个帧长度短时，通过将包含在前导码信号中的导频与对应于传输的相位中的导频的已知导频进行比较来获得传输路径特性，并且基于传输路径特性在时间方向上内插数据部分。

25. 发明授权

US08374264B2 Signal processing apparatus and method 有权
标题翻译：信号处理装置及方法
公开(公告)号：US08374264B2
公开(公告)日：2013-02-12
申请号：US12836893
申请日：2010-07-15
申请人： Kenichi Kobayashi , Yuken Goto , Takuya Okamoto , Lachlan Bruce Michael
发明人： Kenichi Kobayashi , Yuken Goto , Takuya Okamoto , Lachlan Bruce Michael
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。

26. 发明授权

US08363755B2 Signal receiving apparatus, method, program and system 有权
标题翻译：信号接收装置，方法，程序和系统
公开(公告)号：US08363755B2
公开(公告)日：2013-01-29
申请号：US12788398
申请日：2010-05-27
申请人： Suguru Houchi , Naoki Yoshimochi , Takuya Okamoto , Yuken Goto , Takashi Yokokawa
发明人： Suguru Houchi , Naoki Yoshimochi , Takuya Okamoto , Yuken Goto , Takashi Yokokawa
IPC分类号： H04L27/00
CPC分类号： H04L27/2662 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/03159 , H04L27/2649 , H04L27/2675 , H04L2025/03414 , H04L2025/03426
摘要： A signal receiving apparatus includes: an acquisition section configured to acquire an Orthogonal Frequency Division Multiplexing signal resulting from combination of a plurality of signals transmitted by a plurality of signal transmitting apparatus by adoption of an Orthogonal Frequency Division Multiplexing method; and a demodulation section configured to carry out partial processing of processing to demodulate the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section by making use of either first pilot signals or second pilot signals where the first pilot signals are pilot signals extracted from the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section as signals having the same phase for all the signal transmitting apparatus, and the second pilot signals are pilot signals extracted from the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section as signals having different phases depending on the signal transmitting apparatus.
摘要翻译：信号接收装置包括：获取部，被配置为通过采用正交频分复用方法获取由多个信号发送装置发送的多个信号的组合而得到的正交频分复用信号; 以及解调部，被配置为执行处理的部分处理，以通过利用第一导频信号或第二导频信号来解调由获取部获取的正交频分复用信号，其中第一导频信号是从正交频率提取的导频信号由采集部分获取的分复用信号作为对于所有信号发送装置具有相同相位的信号，并且第二导频信号是从由采集部分获取的正交频分复用信号中提取的导频信号，作为具有不同相位的信号，取决于信号发送装置。

27. 发明授权

US08358722B2 Signal processing apparatus, signal processing method, and reception system 有权
标题翻译：信号处理装置，信号处理方法和接收系统
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。

28. 发明申请

US20110142176A1 RECIEVING APPARATUS AND METHOD, PROGRAM, AND RECIEVING SYSTEM 有权
标题翻译：回收装置和方法，程序和响应系统
公开(公告)号：US20110142176A1
公开(公告)日：2011-06-16
申请号：US12958912
申请日：2010-12-02
申请人： Takashi YOKOKAWA , Tadaaki Yuba , Hidetoshi Kawauchi , Hitoshi Sakai , Yuken Goto , Suguru Houchi
发明人： Takashi YOKOKAWA , Tadaaki Yuba , Hidetoshi Kawauchi , Hitoshi Sakai , Yuken Goto , Suguru Houchi
IPC分类号： H04L27/06
CPC分类号： H04L25/02 , H04L25/0232 , H04L2025/03414
摘要： Disclosed herein is a receiving apparatus for receiving an orthogonal frequency division multiplexing signal, namely, OFDM signal having a frame having one frame length of a plurality of patterns, including: an acquiring section configured to acquire information on a preamble signal from the OFDM signal transmitted from a transmitting apparatus in accordance with an OFDM system; a frame determining section configured to determine whether or not the one frame length is short in the frame based on the information on the preamble signal acquired from the acquiring section; and a time interpolating section configured to obtain transmission path characteristics by comparing a pilot contained in the preamble signal and a known pilot corresponding to the pilot in a phase of transmission with each other when the frame determining section determines that the one frame length is short in the frame, and interpolate a data portion in a time direction based on the transmission path characteristics thus obtained.
摘要翻译：本发明公开了一种用于接收正交频分复用信号的接收装置，即具有多个模式的一帧长度的帧的OFDM信号，包括：获取部，被配置为从发送的OFDM信号获取关于前导信号的信息根据OFDM系统的发送装置; 帧确定部分，被配置为基于从获取部分获取的关于前导信号的信息来确定帧中的一个帧长度是否短; 以及时间内插部，被配置为当帧确定部确定一个帧长度短时，通过将包含在前导信号中的导频与在传输相位中的导频对应的已知导频彼此进行比较来获得传输路径特性并根据所获得的传输路径特性在时间方向内插数据部分。

29. 发明申请

US20110038444A1 RECEIVING APPARATUS AND RECEIVING METHOD 有权
标题翻译：接收装置和接收方法
公开(公告)号：US20110038444A1
公开(公告)日：2011-02-17
申请号：US12851927
申请日：2010-08-06
申请人： Yuken GOTO , Naoto Nagaki , Satoshi Okada , Kentaro Nakahara , Koji Naniwada
发明人： Yuken GOTO , Naoto Nagaki , Satoshi Okada , Kentaro Nakahara , Koji Naniwada
IPC分类号： H04L27/06 , H04L27/28
CPC分类号： H04L1/201 , H04L1/0054 , H04L5/0007 , H04L5/0048 , H04L27/2656 , H04L27/2659
摘要： Disclosed herein is a receiving apparatus including a first correlation value computation section, an operation section, a second correlation value computation section, a decoding section, and a determination section.
摘要翻译：这里公开了一种接收装置，包括第一相关值计算部分，操作部分，第二相关值计算部分，解码部分和确定部分。

30. 发明申请

US20110019101A1 RECEIVING APPARATUS AND METHOD AND PROGRAM 有权
标题翻译：接收装置和方法与程序
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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