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。

公开(公告)号：US20090231994A1

公开(公告)日：2009-09-17

申请号：US12403436

申请日：2009-03-13

申请人： Hidetoshi KAWAUCHI ,  Toshiyuki MIYAUCHI ,  Takashi YOKOKAWA ,  Takashi HORIGUTI ,  Naoki YOSHIMOCHI ,  Yasuhiro IIDA ,  Satoru HORI

发明人： Hidetoshi KAWAUCHI ,  Toshiyuki MIYAUCHI ,  Takashi YOKOKAWA ,  Takashi HORIGUTI ,  Naoki YOSHIMOCHI ,  Yasuhiro IIDA ,  Satoru HORI

IPC分类号： H04J11/00 ,  H04L5/12

CPC分类号： H04L27/2647 ,  H04L25/0232 ,  H04L25/03821

摘要： Disclosed herein is A demodulating circuit including: an FFT processing section; an intercarrier interferential component removing section; an extracting section; a transmission path characteristics estimating section; an interpolating section; a symbol sequence estimating section; and an interference replica generating section.

摘要翻译： 本文公开了一种解调电路，包括：FFT处理部分; 一个载波间干扰部分去除部分; 提取部分; 传输路径特性估计部分; 内插部分 符号序列估计部分; 和干扰复制产生部分。

公开(公告)号：US20090135931A1

公开(公告)日：2009-05-28

申请号：US12323650

申请日：2008-11-26

申请人： Hidetoshi KAWAUCHI ,  Takashi YOKOKAWA ,  Takashi HORIGUTI ,  Naoki YOSHIMOCHI ,  Hiroyuki KAMATA ,  Ryoji IKEGAYA ,  Yasuhiro IIDA

发明人： Hidetoshi KAWAUCHI ,  Takashi YOKOKAWA ,  Takashi HORIGUTI ,  Naoki YOSHIMOCHI ,  Hiroyuki KAMATA ,  Ryoji IKEGAYA ,  Yasuhiro IIDA

IPC分类号： H04L27/28

CPC分类号： H04L25/0204 ,  H04L25/022 ,  H04L25/03019 ,  H04L27/2607 ,  H04L2025/03414

摘要： Disclosed herein is a reception apparatus, including, an orthogonal frequency division multiplexing signal reception section, a first filter section, a subtraction section, a second filter section, a coefficient production section, and a Fast Fourier Transformation mathematic operation section.

摘要翻译： 这里公开了一种接收装置，包括正交频分复用信号接收部分，第一滤波部分，减法部分，第二滤波部分，系数产生部分和快速傅里叶变换数学运算部分。

公开(公告)号：US20100245677A1

公开(公告)日：2010-09-30

申请号：US12726484

申请日：2010-03-18

申请人： Takashi YOKOKAWA ,  Hitoshi Sakai

发明人： Takashi YOKOKAWA ,  Hitoshi Sakai

IPC分类号： H03M13/05 ,  H04N5/44 ,  G06F11/10

CPC分类号： H03M13/11 ,  H03M13/2707 ,  H03M13/2785 ,  H03M13/2789

摘要： A receiving apparatus includes: a deinterleaving device configured to perform a deinterleaving process on an LDPC-coded data signal having undergone an interleaving process, the LDPC representing Low Density Parity Check, by use of a memory which has columns capable of storing as many as “a” data, the “a” being an integer of at least 1; and a control device configured such that if the data signal is supplied in units of N data, the N being an integer smaller than the “a,” the control device controls the deinterleaving device to write the data signal to a predetermined address of the memory while reading previously written data from the predetermined address in a write period, the control device further controlling the deinterleaving device to stop writing the data signal to the predetermined address of the memory while reading the previously written data from the predetermined address in a write inhibit period.

摘要翻译： 接收装置包括：解交织装置，被配置为对已经经历交织处理的LDPC编码数据信号执行解交织处理，LDPC表示低密度奇偶校验，通过使用具有能够存储多达“ “数据”，“a”为至少1的整数; 以及控制装置，被配置为使得如果以N个数据为单位提供数据信号，则N是小于“a”的整数，控制装置控制解交织装置将数据信号写入存储器的预定地址 同时在写周期期间从预定地址读取先前写入的数据时，控制装置进一步控制解交错装置，以便在写入禁止期间从预定地址读出先前写入的数据时停止将数据信号写入存储器的预定地址 。

公开(公告)号：US20110158354A1

公开(公告)日：2011-06-30

申请号：US12953832

申请日：2010-11-24

申请人： Takashi YOKOKAWA ,  Osamu Shinya ,  Hitoshi Sakai

发明人： Takashi YOKOKAWA ,  Osamu Shinya ,  Hitoshi Sakai

IPC分类号： H04L27/06

CPC分类号： H04L5/0007 ,  H04L1/0052 ,  H04L1/0071

摘要： Disclosed herein is a receiver including a receiving section, a first sorting section, a second sorting section, and a switching section.

摘要翻译： 本文公开了一种接收机，包括接收部分，第一分类部分，第二分类部分和切换部分。

公开(公告)号：US20090106621A1

公开(公告)日：2009-04-23

申请号：US12253324

申请日：2008-10-17

申请人： Takashi YOKOKAWA

发明人： Takashi YOKOKAWA

IPC分类号： H03M13/05 ,  G06F11/07

CPC分类号： H03M13/6513 ,  H03M13/1111 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/1168 ,  H03M13/1185 ,  H03M13/6508 ,  H03M13/6516

摘要： Disclosed herein is a decoding apparatus for decoding an LDPC (Low Density Parity Check) code received in a first format or a second format wherein a process to decode received values each obtained as a result of receiving the LDPC code in the first or second format includes at least F check-node processes carried out concurrently as processes of F check nodes respectively or F variable-node processes carried out concurrently as processes of F variable nodes respectively.

摘要翻译： 本文公开了一种用于解码以第一格式或第二格式接收的LDPC（低密度奇偶校验）码的解码装置，其中，以第一或第二格式接收LDPC码的结果来解码接收值的处理包括 至少分别作为F个校验节点的过程执行的F个校验节点过程，或者分别作为F个变量节点的过程而执行的F个可变节点处理。

公开(公告)号：US20120106608A1

公开(公告)日：2012-05-03

申请号：US13236706

申请日：2011-09-20

申请人： Takashi YOKOKAWA ,  Ryoji IKEGAYA ,  Yuji SHINOHARA

发明人： Takashi YOKOKAWA ,  Ryoji IKEGAYA ,  Yuji SHINOHARA

IPC分类号： H04B17/00

CPC分类号： H04L1/0047 ,  H04L1/0019 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/38 ,  H04L2001/0093

摘要： A signal processing apparatus is disclosed which includes: a detection section configured such that based on a result of the error correction of a signal generated by a single carrier system, the detection section detects the presence or absence of spectrum inversion in the signal; and a selection section configured such that if the detection section detects the spectrum inversion, the selection section selects the spectrally inverted signal as the signal subject to the error correction, and that if the detection section does not detect the spectrum inversion, then the selection selects the spectrally uninverted signal as the signal subject to the error correction.

摘要翻译： 公开了一种信号处理装置，包括：检测部，被配置为基于由单载波系统生成的信号的纠错结果，检测部检测信号中是否存在频谱反转; 以及选择部分，其被配置为使得如果检测部分检测到频谱反转，则选择部分选择频谱反转的信号作为经过纠错的信号，并且如果检测部分没有检测到频谱反转，则选择选择 作为经过纠错的信号的光谱未反相信号。

公开(公告)号：US20100251078A1

公开(公告)日：2010-09-30

申请号：US12725725

申请日：2010-03-17

申请人： Takashi YOKOKAWA ,  Osamu SHINYA

发明人： Takashi YOKOKAWA ,  Osamu SHINYA

IPC分类号： H03M13/05 ,  G06F11/10 ,  H03M13/27

CPC分类号： H03M13/1105 ,  H03M13/15 ,  H03M13/152 ,  H03M13/27 ,  H03M13/2906 ,  H03M13/6552 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L2001/0093

摘要： A receiving apparatus includes: an LDPC decoding device configured such that when an LDPC-coded data signal, LDPC representing Low Density Parity Check, and an LDPC-coded transmission control signal are transmitted in multiplexed fashion, the LDPC decoding device can decode both the data signal and the transmission control signal; a holding device configured to be located upstream of the LDPC decoding device and to hold at least the transmission control signal upon receipt of the data signal and the transmission control signal; and a control device configured to control the LDPC decoding device to decode the data signal while the transmission control signal is being accumulated in the holding device and to interrupt the current decoding so as to control the LDPC decoding device to decode the transmission control signal when the transmission control signal has been accumulated in the holding device.

摘要翻译： 接收装置包括：LDPC解码装置，被配置为当以多路复用方式发送LDPC编码数据信号，表示低密度奇偶校验的LDPC和LDPC编码的发送控制信号时，LDPC解码装置可以解码数据 信号和传输控制信号; 保持装置，被配置为位于所述LDPC解码装置的上游，并且在接收到所述数据信号和所述发送控制信号时至少保持所述发送控制信号; 以及控制装置，被配置为当所述传输控制信号被积累在所述保持装置中时，控制所述LDPC解码装置对所述数据信号进行解码，并且中断当前解码，以便当所述LDPC解码装置解码所述传输控制信号时 传输控制信号已经积存在保持装置中。

公开(公告)号：US20090106620A1

公开(公告)日：2009-04-23

申请号：US12252470

申请日：2008-10-16

申请人： Takashi YOKOKAWA

发明人： Takashi YOKOKAWA

IPC分类号： H03M13/09 ,  G06F11/10

CPC分类号： H03M13/1168 ,  H03M13/1111 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/616 ,  H03M13/6508 ,  H03M13/6577

摘要： Disclosed herein is a decoding apparatus for decoding an LDPC code, the decoding apparatus including: a message computation section configured to carry out a process of decoding received values, where notation F denotes a non-unity measure of the integer P, and outputting F messages; a shift section configured to carry out F×F cyclic shift operations on the F messages and output F messages; a storage section configured to store the F messages and allow the stored F messages to be read out or to store F received values cited above and allow the stored F received values to be read out; and a control section configured to control an operation to supply a unit composed of the F received values to the message computation section by carrying out at least a column rearrangement process or a process equivalent to the column rearrangement process on the received values.

摘要翻译： 这里公开了一种解码LDPC码的解码装置，该解码装置包括：消息计算部，被配置为执行对接收值进行解码的处理，其中，F表示整数P的非一致性度量，并输出F个消息 ; 移位部，被配置为对所述F个消息执行FxF循环移位操作并输出F个消息; 存储部，其被配置为存储所述F个消息，并且允许所存储的F个消息被读出或存储上述引用的F个接收值，并且允许读取所存储的F个接收值; 以及控制部，被配置为通过对接收到的值执行至少一个列重排处理或与该列重排处理相当的处理来控制将由F个接收值组成的单元提供给消息计算部的操作。

公开(公告)号：US20120110407A1

公开(公告)日：2012-05-03

申请号：US13235794

申请日：2011-09-19

申请人： Takashi YOKOKAWA ,  Yutaka NAKADA ,  Ryoji IKEGAYA

发明人： Takashi YOKOKAWA ,  Yutaka NAKADA ,  Ryoji IKEGAYA

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1105 ,  H03M13/11 ,  H03M13/1102 ,  H03M13/1128 ,  H03M13/3753 ,  H03M13/65 ,  H03M13/6552 ,  H03M13/6555

摘要： Disclosed herein is a decoding device including: an extracting section, a storing section, an allocating section, and a decoding section. The extracting section acquires data containing plural code words and information other than the plural code words in one frame, and extracts the plural code words from the data every one code word. The storing section at least stores the one code word extracted by the extracting section. The allocating section sets time obtained by dividing time for the one frame by the number of code words contained in the one frame as time allocated to decoding of one code word. The decoding section decodes the code word within the time allocated by the allocating section.

摘要翻译： 这里公开了一种解码装置，包括：提取部分，存储部分，分配部分和解码部分。 提取部分在一帧中获取包含多个码字和除了多个码字之外的信息的数据，并且每个码字从数据中提取多个码字。 存储部至少存储由提取部提取的一个码字。 分配部分将通过将一帧的时间除以包含在一帧中的码字的数目获得的时间作为分配给一个码字的解码的时间。 解码部分在由分配部分分配的时间内对码字进行解码。