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公开(公告)号：US08175204B2
公开(公告)日：2012-05-08
申请号：US12544288
申请日：2009-08-20
IPC分类号： H04B1/10
CPC分类号： H04L25/0234 , H04L5/0007 , H04L5/0048 , H04L25/0216 , H04L25/022 , H04L25/03159 , H04L27/2605 , H04L27/2647 , H04L27/2657 , H04L27/2662 , H04L2025/03414
摘要： A receiving device includes: a pilot extracting section; a first estimating section; a second estimating section; a third estimating section; a distortion correcting section; and a filter controlling section.
摘要翻译： 接收装置包括：导频提取部分; 第一个估计部分; 第二估计部分; 第三估计部分; 失真校正部; 和滤波器控制部。
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公开(公告)号：US20100046652A1
公开(公告)日：2010-02-25
申请号：US12544288
申请日：2009-08-20
CPC分类号： H04L25/0234 , H04L5/0007 , H04L5/0048 , H04L25/0216 , H04L25/022 , H04L25/03159 , H04L27/2605 , H04L27/2647 , H04L27/2657 , H04L27/2662 , H04L2025/03414
摘要： A receiving device includes: a pilot extracting section; a first estimating section; a second estimating section; a third estimating section; a distortion correcting section; and a filter controlling section.
摘要翻译： 接收装置包括：导频提取部分; 第一个估计部分; 第二估计部分; 第三估计部分; 失真校正部; 和滤波器控制部。
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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。
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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。
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公开(公告)号：US20130336433A1
公开(公告)日：2013-12-19
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
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。
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公开(公告)号：US20140010332A1
公开(公告)日：2014-01-09
申请号：US14006871
申请日：2012-03-23
申请人： Takuya Okamoto , Hiroo Takahashi , Yuken Goto
发明人： Takuya Okamoto , Hiroo Takahashi , Yuken Goto
IPC分类号： H04L27/26
CPC分类号： H04L27/2666 , H03J7/02 , H04B1/28 , H04H20/77 , H04H40/27 , H04N5/4401 , H04N5/455
摘要： The present technology relates to a receiving device, a receiving method, a program, and a receiving system which may improve reception performance in the case of receiving a signal with a variable frequency band. A receiving device according to an embodiment of the present technology includes a demodulation unit configured to convert a received signal to a baseband signal in the case where a first frequency differs from a second frequency, wherein the first frequency is a center frequency in a band of the received signal, the second frequency is a center frequency in a band of a desired signal included in a part of the band of the received signal, and a DC component of the baseband signal is to be a frequency in the vicinity of the second frequency. The present technology may be applied to a receiver which receives an OFDM signal of DVB-C2.
摘要翻译： 本技术涉及在接收具有可变频带的信号的情况下可以提高接收性能的接收装置，接收方法，程序和接收系统。 根据本技术的实施例的接收装置包括解调单元，被配置为在第一频率与第二频率不同的情况下将接收信号转换为基带信号，其中第一频率是频带中的中心频率 接收信号，第二频率是包括在接收信号的频带的一部分中的期望信号的频带中的中心频率，并且基带信号的直流分量将成为第二频率附近的频率 。 本技术可以应用于接收DVB-C2的OFDM信号的接收机。
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公开(公告)号：US20100310013A1
公开(公告)日：2010-12-09
申请号：US12788398
申请日：2010-05-27
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。
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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。
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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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公开(公告)号：US08363755B2
公开(公告)日：2013-01-29
申请号：US12788398
申请日：2010-05-27
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。
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