公开(公告)号：US06529472B1

公开(公告)日：2003-03-04

申请号：US09370889

申请日：1999-08-10

申请人： Keiichi Kaneko ,  Katsumi Takaoka ,  Kazunari Matsui ,  Takaaki Saiki

发明人： Keiichi Kaneko ,  Katsumi Takaoka ,  Kazunari Matsui ,  Takaaki Saiki

IPC分类号： H04J1100

CPC分类号： H04L27/2628 ,  H04L27/2602 ,  H04L27/265

摘要： A first orthogonal-multi-carrier signal is generated through N-point inverse discrete Fourier transform. The first orthogonal-multi-carrier signal has “N” or less orthogonal multiple carriers, where “N” denotes a predetermined natural number equal to or greater than 2. Every 1-unit time segment of the first orthogonal-multi-carrier signal is repeated “M” times to generate every 1-symbol time segment of a second orthogonal-multi-carrier signal. The second orthogonal-multi-carrier signal has a thinned set of “N” or less orthogonal multiple carriers spaced at M-carrier intervals, where “M” denotes a predetermined natural number equal to or greater than 2.

摘要翻译： 通过N点离散傅立叶逆变换产生第一正交多载波信号。 第一正交多载波信号具有“N”个或更少的正交多载波，其中“N”表示等于或大于2的预定自然数。第一正交多载波信号的每1个单位时间段是 重复“M”次以产生第二正交多载波信号的每1个符号时间段。 第二正交多载波信号具有以M载波间隔隔开的“N”个或更少的正交多载波的稀疏集合，其中“M”表示等于或大于2的预定自然数。

公开(公告)号：US06157676A

公开(公告)日：2000-12-05

申请号：US127122

申请日：1998-07-30

申请人： Katsumi Takaoka ,  Kenji Sugiyama

发明人： Katsumi Takaoka ,  Kenji Sugiyama

IPC分类号： G06T9/00 ,  H04N7/34 ,  H04B1/66

CPC分类号： H04N19/593

摘要： An image encoding apparatus for application to images expressed as respective frames of a digital video signal, whereby an image is converted into an array of blocks with specific blocks predetermined as being independent internally encoded blocks and the remainder as predictively encoded blocks, with predicted pixel signal values for a predictively encoded block being derived by interpolation from pixel signal values of at least one pair of blocks which have been already encoded and enclose that predictively encoded block along the row or column directions or both the row and column directions. Encoding efficiency is enhanced by applying Discrete Sine Transform processing along the interpolation direction, when encoding an array of prediction error signal values derived for a block, and by executing adaptive prediction by determining an optimum interpolation direction, when there are two possible directions for deriving predicted pixel signal values for a block.

摘要翻译： 一种用于应用于表示为数字视频信号的相应帧的图像的图像编码装置，由此将图像转换为具有预定为独立内部编码块的特定块的块的阵列，并且将剩余部分转换为具有预测的像素信号 通过从已经被编码的至少一对块的像素信号值进行内插而导出预测编码块的值，并且沿行或列方向或行方向和列方向包围该预测编码块。 当编码通过块导出的预测误差信号值的阵列时，通过在插值方向上应用离散正弦变换处理，并且当存在用于导出预测的两个可能方向时，通过确定最佳插值方向执行自适应预测来增强编码效率 块的像素信号值。

公开(公告)号：US08615060B2

公开(公告)日：2013-12-24

申请号：US13235864

申请日：2011-09-19

申请人： Naoki Yoshimochi ,  Katsumi Takaoka ,  Tetsuhiro Futami

发明人： Naoki Yoshimochi ,  Katsumi Takaoka ,  Tetsuhiro Futami

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04L25/0212 ,  H04L25/03006 ,  H04L2025/03414 ,  H04L2025/03484 ,  H04L2025/03522 ,  H04L2025/03535 ,  H04L2025/03611

摘要： Disclosed herein is a reception apparatus including a calculation section and a storage section. The calculation section calculates correlation values between a data sequence included in a known signal and a received signal at a given point in time. The storage section has at least an area sufficient for storing the correlation values calculated for one frame using the received signal which is one frame long and to which the known signal is added.

摘要翻译： 这里公开了一种接收装置，包括计算部分和存储部分。 计算部分计算包括在已知信号中的数据序列与给定时间点的接收信号之间的相关值。 存储部分至少具有足够的区域，用于存储使用一帧长的接收信号为一帧计算的相关值，并且将已知信号添加到该区域。

公开(公告)号：US08381054B2

公开(公告)日：2013-02-19

申请号：US12424342

申请日：2009-04-15

申请人： Ryo Hasegawa ,  Katsumi Takaoka

发明人： Ryo Hasegawa ,  Katsumi Takaoka

IPC分类号： G06F11/00

CPC分类号： H04L1/0045

摘要： A reception apparatus that receives a signal, including, a correction section, an error detection section, a filtering section, and a setting section is provided.

摘要翻译： 提供一种接收装置，其接收包括校正部分，错误检测部分，过滤部分和设置部分的信号。

公开(公告)号：US08369455B2

公开(公告)日：2013-02-05

申请号：US12482530

申请日：2009-06-11

申请人： Ryo Hasegawa ,  Katsumi Takaoka

发明人： Ryo Hasegawa ,  Katsumi Takaoka

IPC分类号： H03K9/00 ,  H04L27/00

CPC分类号： H04L27/0014 ,  H04L7/0029 ,  H04L2027/003 ,  H04L2027/0053 ,  H04L2027/0069

摘要： The present invention provides a receiving apparatus including: a capturing section configured to correct an error of a receive signal and capture the receive signal; a filtering section configured to remove a low frequency component of a signal indicative of an integrated value of an error of the receive signal; and a capture detecting section configured to monitor a signal outputted from the filtering section and, if the signal is within a predetermined range for a predetermined time, detect that the capturing section has captured the receive signal.

摘要翻译： 本发明提供一种接收装置，包括：捕获部分，被配置为校正接收信号的误差并捕获接收信号; 滤波部，被配置为去除表示所述接收信号的误差的积分值的信号的低频分量; 以及捕捉检测部，被配置为监视从所述滤波部输出的信号，并且如果所述信号在预定范围内在预定时间内，则检测所述拍摄部分已经捕获了所述接收信号。

公开(公告)号：US20120250797A1

公开(公告)日：2012-10-04

申请号：US13370837

申请日：2012-02-10

申请人： Ryo HASEGAWA ,  Katsumi TAKAOKA

发明人： Ryo HASEGAWA ,  Katsumi TAKAOKA

IPC分类号： H04L27/00

CPC分类号： H04L7/08 ,  H04L25/03 ,  H04L25/03878

摘要： Disclosed herein is a signal receiving apparatus including: a data-loss detection section configured to detect a data loss from a received signal; and a timing adjustment section configured to adjust a processing timing by the quantity of the data loss on the basis of the detection result of the data loss.

摘要翻译： 这里公开了一种信号接收装置，包括：数据丢失检测部，被配置为从接收信号检测数据丢失; 以及定时调整部，被配置为基于数据丢失的检测结果来调整处理定时与数据丢失量。

公开(公告)号：US20120102082A1

公开(公告)日：2012-04-26

申请号：US13242754

申请日：2011-09-23

申请人： Naoki YOSHIMOCHI ,  Katsumi Takaoka ,  Hidetoshi Kawauchi

发明人： Naoki YOSHIMOCHI ,  Katsumi Takaoka ,  Hidetoshi Kawauchi

IPC分类号： G06F17/10

CPC分类号： H04L25/061 ,  H04L25/0224 ,  H04L25/03057 ,  H04L27/0008 ,  H04L2025/03414 ,  H04L2025/03535 ,  H04L2025/03636

摘要： Disclosed herein is a reception apparatus, including a first equalization section, a second equalization section, and an arithmetic operation section. The first equalization section is adapted to carry out equalization of a signal which represents data transmitted by a transmission method which uses a single carrier. The second equalization section is adapted to carry out equalization of a signal which represents data transmitted by a transmission method which uses multi carriers. The arithmetic operation section is adapted to carry out arithmetic operation for determining information to be used for the equalization by the first equalization section and arithmetic operation for determining information to be used for the equalization by the second equalization section.

摘要翻译： 这里公开了一种接收装置，包括第一均衡部分，第二均衡部分和算术运算部分。 第一均衡部分适于执行表示通过使用单个载波的传输方法发送的数据的信号的均衡。 第二均衡部分适于执行表示通过使用多载波的传输方法发送的数据的信号的均衡。 算术运算部适于执行用于确定由第一均衡部分进行均衡的信息的算术运算和用于确定由第二均衡部分进行均衡的信息的算术运算。

公开(公告)号：US20120099676A1

公开(公告)日：2012-04-26

申请号：US13235806

申请日：2011-09-19

申请人： Ryo HASEGAWA ,  Katsumi Takaoka

发明人： Ryo HASEGAWA ,  Katsumi Takaoka

IPC分类号： H04L27/06

CPC分类号： H04L27/0008

摘要： A reception apparatus includes: a reception section configured to receive a signal modulated by one of a single-carrier scheme and a multi-carrier scheme that are specified by a predetermined standard; a single-carrier demodulation section configured to execute single-carrier demodulation based on the single-carrier scheme onto the signal; a multi-carrier demodulation section configured to execute multi-carrier demodulation based on the multi-carrier scheme onto the signal; and a demodulation control section configured to control such that one of the single-carrier demodulation and the multi-carrier demodulation is tried on the received signal in accordance with a preset predetermined rule.

摘要翻译： 接收装置包括：接收部分，被配置为接收由预定标准指定的单载波方案和多载波方案之一调制的信号; 单载波解调部，被配置为基于所述单载波方案对所述信号执行单载波解调; 多载波解调部，被配置为基于所述多载波方案对所述信号执行多载波解调; 以及解调控制部，其被配置为根据预设的预定规则，对所接收的信号进行单载波解调和多载波解调中的一个的控制。

公开(公告)号：US06763072B1

公开(公告)日：2004-07-13

申请号：US09634856

申请日：2000-08-08

申请人： Kazunari Matsui ,  Katsumi Takaoka ,  Takaaki Saiki ,  Keiichi Kaneko

发明人： Kazunari Matsui ,  Katsumi Takaoka ,  Takaaki Saiki ,  Keiichi Kaneko

IPC分类号： H04L2728

CPC分类号： H04L27/2627 ,  H04L27/2649

摘要： Data pieces representative of in-phase components and quadrature components of a digital-modulation-resultant signal are assigned to frequencies for inverse fast Fourier transform. The inverse fast Fourier transform is executed at a predetermined sampling frequency Fs to convert the data pieces into a real-part signal and an imaginary-part signal. Phases of the real-part signal and the imaginary-part signal are shifted. Each of the phase-shifted real-part signal and the phase-shifted imaginary-part signal is divided into a sequence of even-numbered samples and a sequence of odd-numbered samples. A digital quadrature-modulation-resultant signal is generated from further manipulation of the even-numbered and odd-numbered samples.

摘要翻译： 表示数字调制结果信号的同相分量和正交分量的数据段被分配给用于快速傅里叶逆变换的频率。 以预定的采样频率Fs执行逆快速傅里叶变换，以将数据段转换成实部信号和虚部信号。 实部信号和虚部信号的相位偏移。 相移的实部信号和相移的虚部信号中的每一个被分成偶数样本的序列和奇数样本的序列。 从偶数和奇数样本的进一步操纵产生数字正交调制结果信号。