公开(公告)号：US08238459B2

公开(公告)日：2012-08-07

申请号：US12361199

申请日：2009-01-28

申请人： Takashi Yokokawa ,  Yasuhiro Iida ,  Toshiyuki Miyauchi ,  Takashi Hagiwara ,  Takanori Minamino ,  Naoya Haneda

发明人： Takashi Yokokawa ,  Yasuhiro Iida ,  Toshiyuki Miyauchi ,  Takashi Hagiwara ,  Takanori Minamino ,  Naoya Haneda

IPC分类号： H04L23/02

CPC分类号： H04L27/3827 ,  H04L1/0054 ,  H04L1/208 ,  H04L7/042

摘要： A decoding device that decodes demodulated data obtained by demodulating a quadrature modulated signal arising from digital modulation of a carrier and detects synchronization, the decoding device includes, a decoder configured to decode first demodulated data that is the demodulated data obtained by demodulating the quadrature modulated signal and is composed of in-phase axis data and quadrature axis data. The decoding device decodes second demodulated data obtained by interchanging the in-phase axis data and the quadrature axis data of the first demodulated data. A synchronization detector is configured to detect a boundary between predetermined information symbol sequences from first decoded data obtained by decoding the first demodulated data and detect the boundary from second decoded data obtained by decoding the second demodulated data. The synchronization detector selects and outputs one of the first decoded data and the second decoded data based on a result of the detection of the boundary.

摘要翻译： 一种解码装置，对通过解调由载波的数字调制产生的正交调制信号而获得的解调数据进行解码，并检测同步，解码装置包括：解码器，被配置为对作为通过解调正交调制信号而获得的解调数据的第一解调数据进行解码 并且由同相轴数据和正交轴数据组成。 解码装置对通过交换同相轴数据和第一解调数据的正交轴数据而获得的第二解调数据进行解码。 同步检测器被配置为从通过解码第一解调数据获得的第一解码数据检测预定信息符号序列之间的边界，并通过解码第二解调数据获得的第二解码数据检测边界。 同步检测器基于边界检测的结果选择并输出第一解码数据和第二解码数据中的一个。

公开(公告)号：US08209581B2

公开(公告)日：2012-06-26

申请号：US12253347

申请日：2008-10-17

申请人： Takashi Yokokawa ,  Satoshi Okada ,  Osamu Shinya

发明人： Takashi Yokokawa ,  Satoshi Okada ,  Osamu Shinya

IPC分类号： G06F11/00

CPC分类号： H03M13/11 ,  H04L1/0052 ,  H04L1/0057 ,  H04L1/007

摘要： A receiving apparatus including, an LDPC decoder configured to decode both of the data signal and the transmission control signal, a data signal input buffer arranged before the LDPC decoder and configured to hold the received data signal and a transmission control signal input buffer arranged before the LDPC decoder and configured to hold the received transmission control signal, and a controller configured to select one of the data signal held in the data signal input buffer and the transmission control signal held in the transmission control signal input buffer as a signal subject to decoding and transmit the selected signal to the LDPC decoder to make the LDPC decoder decode the signal subject to decoding.

摘要翻译： 一种接收装置，包括：LDPC解码器，被配置为解码所述数据信号和所述传输控制信号;数据信号输入缓冲器，布置在所述LDPC解码器之前并被配置为保持所述接收的数据信号;以及传输控制信号输入缓冲器， LDPC解码器，被配置为保持所接收的发送控制信号，以及控制器，被配置为选择保持在数据信号输入缓冲器中的数据信号中的一个和保持在发送控制信号输入缓冲器中的发送控制信号作为经解码的信号;以及 将所选择的信号发送到LDPC解码器，以使LDPC解码器对经过解码的信号进行解码。

公开(公告)号：US20110317790A1

公开(公告)日：2011-12-29

申请号：US13165230

申请日：2011-06-21

申请人： Takashi Yokokawa ,  Hitoshi Sakai ,  Taylor Matthew

发明人： Takashi Yokokawa ,  Hitoshi Sakai ,  Taylor Matthew

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L25/0232 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2647

摘要： A receiving apparatus includes: a transmission path characteristics estimating section obtaining pre-interpolation transmission path characteristic data as estimate values for transmission path characteristics as characteristics of a transmission path of an OFDM signal for transmission symbols of pilot signals by using the pilot signals contained in the OFDM signal, and filtering the pre-interpolation transmission path characteristic data by using an interpolation filter, thereby obtaining transmission path characteristic data as estimate values for transmission path characteristics for transmission symbols of the OFDM signal; a distortion correcting section performing distortion correction for the OFDM signal by using the transmission path characteristic data; and a filter controlling section controlling a pass band of the interpolation filter.

摘要翻译： 接收装置包括：传输路径特性估计部分，通过使用包含在导频信号中的导频信号，获得插值前传输路径特性数据作为传输路径特性的估计值，作为用于导频信号的传输符号的OFDM信号的传输路径的特性 OFDM信号，并且通过使用内插滤波器对插值前传输路径特征数据进行滤波，从而获得作为OFDM信号的发送符号的传输路径特性的估计值的传输路径特性数据; 失真校正部通过使用所述传输路径特性数据对所述OFDM信号进行失真校正; 以及控制内插滤波器的通带的滤波器控制部。

公开(公告)号：US20110164703A1

公开(公告)日：2011-07-07

申请号：US12981948

申请日：2010-12-30

申请人： Takashi Yokokawa ,  Satoshi Okada

发明人： Takashi Yokokawa ,  Satoshi Okada

IPC分类号： H04B1/06

CPC分类号： H04L27/2647 ,  H04H40/18 ,  H04H60/40 ,  H04N21/235 ,  H04N21/23608 ,  H04N21/2383 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/4305 ,  H04N21/434 ,  H04N21/4344 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4382 ,  H04W56/00 ,  H04W56/001 ,  H04W56/003

摘要： Disclosed herein is a reception apparatus, including: a reception section configured to receive an OFDM (Orthogonal Frequency Division Multiplexed) signal obtained by modulating a common packet sequence configured from a packet common to streams and a data packet sequence configured from packets individually unique to the streams; a time counting section configured to count, using predetermined time indicated by additional information added to particular packets of the common and data packet sequences obtained by demodulating the received OFDM signal as a reference, elapsed time after the predetermined time; a detection section configured to compare the counted time and time indicated by the additional information added to the particular packets of the common and data packet sequences to detect a displacement in the time direction between the packets; and a correction section configured to correct the displacement between the packets of the common and data packet sequences in the time direction.

摘要翻译： 这里公开了一种接收装置，包括：接收部分，被配置为接收通过调制由流公用的分组配置的公共分组序列获得的OFDM（正交频分复用）信号，以及从由 溪流 时间计数部分，被配置为使用通过将通过解调所接收的OFDM信号作为参考获得的公共数据分组序列的特定分组附加的附加信息指定的预定时间进行计数，经过预定时间之后的经过时间; 检测部，被配置为比较由附加到所述公用数据包序列和所述数据包序列的特定分组的附加信息所指示的所计算的时间和时间，以检测所述分组之间的时间方向上的位移; 以及校正部，被配置为在时间方向上校正公用数据包序列和数据包序列的包之间的位移。

公开(公告)号：US20060242536A1

公开(公告)日：2006-10-26

申请号：US11409237

申请日：2006-04-24

申请人： Takashi Yokokawa ,  Yuji Shinohara ,  Osamu Shinya

发明人： Takashi Yokokawa ,  Yuji Shinohara ,  Osamu Shinya

IPC分类号： H03M13/00

CPC分类号： H03M13/1111 ,  H03M13/1131 ,  H03M13/1134 ,  H03M13/1137 ,  H03M13/118 ,  H03M13/6577

摘要： The present invention provides a decoding device for decoding an LDPC (Low Density Parity Check) code. The decoding device include: a first operation unit for performing a check node operation for decoding the LDPC code, the operation including an operation of a nonlinear function and an operation of an inverse function of the nonlinear function; and a second operation unit for performing a variable node operation for decoding the LDPC code. The first operation unit includes a first converting unit for converting a first quantization value assigned to a numerical value into a second quantization value representing a numerical value with a higher precision than the first quantization value, and a second converting unit for converting the second quantization value into the first quantization value. In processing performed as the check node operation and the variable node operation, the first operation unit and the second operation unit use the second quantization value in processing from after the operation of the nonlinear function to the operation of the inverse function, and use the first quantization value in the other processing.

摘要翻译： 本发明提供一种用于解码LDPC（低密度奇偶校验）码的解码装置。 解码装置包括：第一操作单元，用于执行用于解码LDPC码的校验节点操作，该操作包括非线性函数的操作和非线性函数的反函数的操作; 以及第二操作单元，用于执行用于对LDPC码进行解码的可变节点操作。 第一操作单元包括：第一转换单元，用于将分配给数值的第一量化值转换成表示具有比第一量化值更高的精度的数值的第二量化值;以及第二转换单元，用于将第二量化值 进入第一个量化值。 在作为校验节点操作和可变节点操作执行的处理中，第一操作单元和第二操作单元使用从非线性函数操作之后的处理中的第二量化值到逆函数的操作，并且使用第一操作单元 其他处理中的量化值。

公开(公告)号：US20050010848A1

公开(公告)日：2005-01-13

申请号：US10498936

申请日：2003-10-08

申请人： Takashi Yokokawa ,  Toshiyuki Miyauchi ,  Yasuhiro Iida ,  Kohei Yamamoto ,  Masayuki Hattori

发明人： Takashi Yokokawa ,  Toshiyuki Miyauchi ,  Yasuhiro Iida ,  Kohei Yamamoto ,  Masayuki Hattori

IPC分类号： G06F11/10 ,  H03M13/23 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H04L1/00 ,  H03M13/00

CPC分类号： H04L1/006 ,  H03M13/25 ,  H03M13/258 ,  H03M13/27 ,  H03M13/29 ,  H03M13/2972 ,  H04L1/0055 ,  H04L1/0065 ,  H04L1/0071

摘要： The present invention is particularly applied to serial concatenated coding and serial concatenated trellis coded modulation. In second encoding 107, which is inner coding, a sequence that is not encoded or that is encoded so as to produce a finite impulse response and a sequence that is encoded so as to produce an infinite impulse response are output. In interleaving 106 before the second encoding 107, the sequences are permuted so as not to be mixed with each other.

摘要翻译： 本发明特别适用于串联编码和串行级联网格编码调制。 在作为内部编码的第二编码器107中，输出未被编码或编码以产生有限脉冲响应的序列和被编码以产生无限脉冲响应的序列。 在第二编码107之前的交织106中，将这些序列置换为不相互混合。

公开(公告)号：US08842223B2

公开(公告)日：2014-09-23

申请号：US14000711

申请日：2012-02-22

申请人： Hiroo Takahashi ,  Lachlan Bruce Michael ,  Takashi Yokokawa ,  Naoki Yoshimochi ,  Takahiro Okada

发明人： Hiroo Takahashi ,  Lachlan Bruce Michael ,  Takashi Yokokawa ,  Naoki Yoshimochi ,  Takahiro Okada

IPC分类号： H04N5/38 ,  H04H20/77

CPC分类号： H04N5/38 ,  H04H20/77 ,  H04L1/0071 ,  H04L5/0048 ,  H04N21/2383 ,  H04N21/6118

摘要： The present technology relates to a transmitter apparatus, an information processing method, a program, and a transmitter system capable of easily transmitting a wideband signal.The transmitter apparatus includes: a first acquisition unit that obtains first transmission control information; a second acquisition unit that obtains second transmission control information similar to information input to another transmitter apparatus; and a generating unit that processes transmission target data based on a parameter contained in the first transmission control information and generates data including the processed transmission target data and the second transmission control information. The present technology can be applied to a transmitter apparatus that transmits a DVB-C2 signal.

摘要翻译： 本技术涉及能够容易地发送宽带信号的发送装置，信息处理方法，程序和发送机系统。 发送装置包括：第一获取单元，其获得第一发送控制信息; 第二获取单元，其获得与输入到另一发送装置的信息相似的第二发送控制信息; 以及生成单元，其基于所述第一发送控制信息中包含的参数来处理发送目标数据，并生成包括所述处理后的发送对象数据和所述第二发送控制信息的数据。 本技术可以应用于发送DVB-C2信号的发送装置。

公开(公告)号：US20130342764A1

公开(公告)日：2013-12-26

申请号：US14002996

申请日：2012-03-01

申请人： Takashi Yokokawa ,  Lachlan Bruce Michael ,  Yuken Goto ,  Kenichi Kobayashi

发明人： Takashi Yokokawa ,  Lachlan Bruce Michael ,  Yuken Goto ,  Kenichi Kobayashi

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。

公开(公告)号：US20130321707A1

公开(公告)日：2013-12-05

申请号：US14000711

申请日：2012-02-22

申请人： Hiroo Takahashi ,  Lachlan Bruce Michael ,  Takashi Yokokawa ,  Naoki Yoshimochi ,  Takahiro Okada

发明人： Hiroo Takahashi ,  Lachlan Bruce Michael ,  Takashi Yokokawa ,  Naoki Yoshimochi ,  Takahiro Okada

IPC分类号： H04N5/38

CPC分类号： H04N5/38 ,  H04H20/77 ,  H04L1/0071 ,  H04L5/0048 ,  H04N21/2383 ,  H04N21/6118

摘要： The present technology relates to a transmitter apparatus, an information processing method, a program, and a transmitter system capable of easily transmitting a wideband signal.The transmitter apparatus includes: a first acquisition unit that obtains first transmission control information; a second acquisition unit that obtains second transmission control information similar to information input to another transmitter apparatus; and a generating unit that processes transmission target data based on a parameter contained in the first transmission control information and generates data including the processed transmission target data and the second transmission control information. The present technology can be applied to a transmitter apparatus that transmits a DVB-C2 signal.

摘要翻译： 本技术涉及能够容易地发送宽带信号的发送装置，信息处理方法，程序和发送机系统。 发送装置包括：第一获取单元，其获得第一发送控制信息; 第二获取单元，其获得与输入到另一发送装置的信息相似的第二发送控制信息; 以及生成单元，其基于所述第一发送控制信息中包含的参数来处理发送目标数据，并生成包括所述处理后的发送对象数据和所述第二发送控制信息的数据。 本技术可以应用于发送DVB-C2信号的发送装置。

公开(公告)号：US08446854B2

公开(公告)日：2013-05-21

申请号：US12852003

申请日：2010-08-06

申请人： Kazuhiro Shimizu ,  Takashi Yokokawa ,  John Wilson ,  Samuel Atungsiri

发明人： Kazuhiro Shimizu ,  Takashi Yokokawa ,  John Wilson ,  Samuel Atungsiri

IPC分类号： H04W92/00

CPC分类号： H04L27/2647 ,  H04N5/44 ,  H04N21/4382

摘要： Disclosed herein is a signal processing apparatus including a first detection block; a second detection block; a duration detection block; a duration information output block; and a demodulation block.

摘要翻译： 这里公开了一种信号处理装置，包括：第一检测块; 第二检测块; 持续时间检测块; 持续时间信息输出块; 和解调块。