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114 条记录 (耗时 0.023 秒)

    Communication apparatus
    2.
    发明授权
    Communication apparatus 有权
    通讯设备

    公开(公告)号：US07725081B2

    公开(公告)日：2010-05-25

    申请号：US11871820

    申请日：2007-10-12

    申请人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    发明人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    IPC分类号： H04B17/00 ,  H04B1/10

    CPC分类号： H04L27/2601 ,  H04B3/54 ,  H04B14/023 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5491 ,  H04L1/0009 ,  H04L1/18 ,  H04L5/0046 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/0004 ,  H04L2025/03414

    摘要： A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absence of the reception signal, a synchronous circuit which extract synchronization timing from the reception signal, an equalizer which corrects the reception signal so as to cancel influence of a transmission path, a transmission path estimator which estimates a state of a power line transmission path, and a judging unit which judges the reception signal, which was amended by the equalizer, by use of a threshold value.

    摘要翻译： 通信装置具有将接收到的模拟信号转换为数字信号的A / D转换器，转换器，其转换接收信号以使得能够处理相位信息;载波检测器，其检测接收的存在或不存在 信号，从接收信号提取同步定时的同步电路，校正接收信号以消除传输路径的影响的均衡器，估计电力线传输路径的状态的传输路径估计器和判断单元 其通过使用阈值来判断由均衡器修改的接收信号。

    Communication apparatus
    3.
    发明授权
    Communication apparatus 有权
    通讯设备

    公开(公告)号：US07302240B2

    公开(公告)日：2007-11-27

    申请号：US10913495

    申请日：2004-08-09

    申请人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    发明人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H04L27/2601 ,  H04B3/54 ,  H04B14/023 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5491 ,  H04L1/0009 ,  H04L1/18 ,  H04L5/0046 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/0004 ,  H04L2025/03414

    摘要： A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absence of the reception signal, a synchronous circuit which extract synchronization timing from the reception signal, an equalizer which corrects the reception signal so as to cancel influence of a transmission path, a transmission path estimator which estimates a state of a power line transmission path, and a judging unit which judges the reception signal, which was amended by the equalizer, by use of a threshold value.

    摘要翻译： 通信装置具有将接收到的模拟信号转换为数字信号的A / D转换器，转换器，其转换接收信号以使得能够处理相位信息;载波检测器，其检测接收的存在或不存在 信号，从接收信号提取同步定时的同步电路，校正接收信号以消除传输路径的影响的均衡器，估计电力线传输路径的状态的传输路径估计器和判断单元 其通过使用阈值来判断由均衡器修改的接收信号。

    Communication apparatus
    4.
    发明授权
    Communication apparatus 有权
    通讯设备

    公开(公告)号：US07590185B2

    公开(公告)日：2009-09-15

    申请号：US11634128

    申请日：2006-12-06

    申请人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    发明人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    IPC分类号： H04K1/10 ,  H04N11/04

    CPC分类号： H04L27/2602 ,  H04L27/0004

    摘要： A wave detecting section of a receiver has a first wavelet transformer involving a plurality of wavelet filters orthogonal to each other for performing a wavelet transform on received waveform data, a Hilbert transformer for performing a Hilbert transform on the received waveform data, a second wavelet transformer having the same configuration as that of the first wavelet transformer for performing a wavelet transform on outputs from the Hilbert transformer, a code converter for inverting the codes of outputs in odd-numbered places among outputs from the second wavelet transformer, a level converter for correcting fluctuations of outputs from the code converter attributable to a ripple of the Hilbert transformer, and a complex data generator for generating complex data, by defining outputs of the first wavelet transformer as in-phase components of the complex information and outputs from the level converter as orthogonal components of the complex information.

    摘要翻译： 接收机的波检测部分具有第一小波变换器，其包括彼此正交的多个小波滤波器，用于对接收到的波形数据执行小波变换，对所接收的波形数据执行希尔伯特变换的希尔伯特变换器，第二小波变换器 具有与用于对来自希尔伯特变换器的输出执行小波变换的第一小波变换器的配置相同的配置，用于将来自第二小波变换器的输出中的奇数编号的输出代码反相的代码转换器，用于校正的电平转换器 通过将第一小波变换器的输出定义为复数信息的同相分量和从电平转换器输出的输出，可以归因于希尔伯特变换器的纹波的输出的波动以及用于产生复数据的复数数据发生器 正交分量的复杂信息。

    Communication apparatus
    6.
    发明申请
    Communication apparatus 有权

    公开(公告)号：US20070076809A1

    公开(公告)日：2007-04-05

    申请号：US11634128

    申请日：2006-12-06

    申请人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    发明人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2602 ,  H04L27/0004

    摘要： A wave detecting section of a receiver has a first wavelet transformer involving a plurality of wavelet filters orthogonal to each other for performing a wavelet transform on received waveform data, a Hilbert transformer for performing a Hilbert transform on the received waveform data, a second wavelet transformer having the same configuration as that of the first wavelet transformer for performing a wavelet transform on outputs from the Hilbert transformer, a code converter for inverting the codes of outputs in odd-numbered places among outputs from the second wavelet transformer, a level converter for correcting fluctuations of outputs from the code converter attributable to a ripple of the Hilbert transformer, and a complex data generator for generating complex data, by defining outputs of the first wavelet transformer as in-phase components of the complex information and outputs from the level converter as orthogonal components of the complex information.

    Receiving apparatus and method for digital multi-carrier transmission
    7.
    发明授权
    Receiving apparatus and method for digital multi-carrier transmission 失效
    数字多载波传输的接收装置和方法

    公开(公告)号：US06944232B2

    公开(公告)日：2005-09-13

    申请号：US10780898

    申请日：2004-02-19

    申请人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    发明人： Hisao Koga ,  Nobutaka Kodama ,  Taisuke Konishi

    IPC分类号： H04L27/00 ,  H04L27/26 ,  H04K1/10

    CPC分类号： H04L27/0014 ,  H04L27/0004 ,  H04L27/264 ,  H04L27/2642 ,  H04L27/2652 ,  H04L27/2657 ,  H04L27/2662

    摘要： A receiving apparatus and method for performing carrier detection in a frequency domain for a digital wavelet multi-carrier transmission. A wavelet transform of received data is performed to output complex data and then the complex data is delayed for one sampling period. Subsequently, the delayed complex data and delayed complex data are divided. A number of the divided complex data present within each of plural quadrants on orthogonal coordinates is calculated and a maximum number of data present within one of the quadrants is selected and compared with a threshold in order to decide whether the received data is intended data.

    摘要翻译： 一种用于在数字小波多载波传输的频域中执行载波检测的接收装置和方法。 执行接收数据的小波变换以输出复数数据，然后将复数数据延迟一个采样周期。 随后，分解延迟的复数数据和延迟的复数数据。 计算存在于正交坐标上的多个象限内的分割复数的数目，并且选择存在于象限之内的最大数量的数据，并将其与阈值进行比较，以便确定接收到的数据是否是预期数据。