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    Distortion compensating apparatus
    2.
    发明授权
    Distortion compensating apparatus 有权
    失真补偿装置

    公开(公告)号：US07639755B2

    公开(公告)日：2009-12-29

    申请号：US10951040

    申请日：2004-09-22

    申请人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

    发明人： Hiroyoshi Ishikawa ,  Tokuro Kubo ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Hajime Hamada ,  Nobukazu Fudaba ,  Toru Maniwa ,  Hiroyuki Hayashi

    IPC分类号： H04K1/02

    CPC分类号： H03F1/3247 ,  H03F2201/3231 ,  H03F2201/3233

    摘要： A distortion compensating apparatus calculates a distortion compensation coefficient in such a manner that a difference signal between a reference signal, which is a transmit signal, and a feedback signal will be diminished, updates an old distortion compensation coefficient by the calculated distortion compensation coefficient and applies distortion compensation to the transmit signal based upon this distortion compensation coefficient. In this apparatus, a phase correcting interval, which is for correcting the phase difference between the reference signal and the feedback signal, and a distortion compensation coefficient updating interval are generated alternately, a correction is applied so as to null the phase difference in the phase correcting interval, and the distortion compensation coefficient is updated in the distortion compensation coefficient updating interval.

    摘要翻译： 失真补偿装置以这样的方式来计算失真补偿系数，使得作为发送信号的参考信号与反馈信号之间的差信号将被减小，通过计算出的失真补偿系数来更新旧的失真补偿系数并应用 基于该失真补偿系数对发送信号进行失真补偿。 在该装置中，交替地产生用于校正参考信号和反馈信号之间的相位差的相位校正间隔和失真补偿系数更新间隔，进行校正，以使相位中的相位差无效 在失真补偿系数更新间隔中更新失真补偿系数。

    Distortion compensation device
    4.
    发明授权
    Distortion compensation device 失效
    失真补偿装置

    公开(公告)号：US06864745B2

    公开(公告)日：2005-03-08

    申请号：US10687391

    申请日：2003-10-15

    申请人： Takayoshi Ode ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hajime Hamada ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

    发明人： Takayoshi Ode ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hajime Hamada ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

    IPC分类号： H03F1/32 ,  H04B1/04 ,  H04B1/62 ,  H04L27/36 ,  H03F1/26

    CPC分类号： H04L27/368 ,  H03F1/3241 ,  H03F1/3247 ,  H03F2201/3233 ,  H04B1/62 ,  H04B2001/0425

    摘要： In a distortion compensation device which uses distortion compensation coefficients to subject distortion compensation processing to an input signal and supply the result of the distortion compensation processing to a distorting device, calculates the distortion compensation coefficients based on the input signal before distortion compensation and the feedback signal fed back from the output side of the distorting device, and stores the calculated distortion compensation coefficients in association with the input signal, (1) the feedback signal is AD-converted; (2) the AD-converted output is subjected to fast Fourier transform (FFT) processing; (3) the FFT calculation result is used to calculate the value of either the signal-to-noise ratio SNR, or the adjacent channel leakage power ratio ACLR, or the noise level; (4) the delay time occurring in the distorting device and feedback loop is adjusted such that the difference between the above calculated value at the current time and the above calculated value at the immediately preceding time is either zero, or is equal to or less than a threshold value; and, (5) this adjustment processing is repeated to determine the accurate delay time, and based on this delay time the timing of each of the portions of the distortion compensation device is adjusted.

    摘要翻译： 在失真补偿装置中，使用失真补偿系数对输入信号进行失真补偿处理，并将失真补偿处理的结果提供给失真装置，基于失真补偿前的输入信号和反馈信号计算失真补偿系数 从失真装置的输出侧反馈，并将计算出的失真补偿系数与输入信号相关联，（1）反馈信号进行AD转换; （2）AD转换输出经受快速傅里叶变换（FFT）处理; （3）FFT计算结果用于计算信噪比SNR或相邻信道泄漏功率比ACLR或噪声电平的值; （4）调整在失真装置和反馈回路中发生的延迟时间，使得当前时间的上述计算值与前一时刻的上述计算值之间的差为零或等于或小于 阈值; 和（5）重复该调整处理以确定准确的延迟时间，并且基于该延迟时间调整失真补偿装置的每个部分的定时。

    Adaptive control apparatus
    9.
    发明申请
    Adaptive control apparatus 有权
    自适应控制装置

    公开(公告)号：US20050058220A1

    公开(公告)日：2005-03-17

    申请号：US10976290

    申请日：2004-10-26

    申请人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    发明人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    IPC分类号： H03F1/32 ,  H03F1/34 ,  H04B1/04 ,  H04L27/36 ,  H04L25/03

    CPC分类号： H03F1/32 ,  H03F1/02 ,  H03F1/3247 ,  H03F1/345 ,  H03F3/24 ,  H04B2001/045

    摘要： Disclosed is an adaptive control apparatus having an error calculation unit for calculating the difference between a reference signal and a feedback signal, and an adaptive controller for applying adaptive control so as to diminish the difference and causing the result of adaptive control to be reflected in the reference signal. The adaptive control apparatus has a delay unit for delaying at least one of the reference signal and feedback signal by a set delay time in such a manner that the reference signal and feedback signal will be input simultaneously to the arithmetic unit; a frequency-component detecting unit for detecting a frequency component of the reference signal; a delay-time acquisition unit for acquiring delay time conforming to the frequency component; and a delay-time setting unit for setting the acquired delay time in the delay unit.

    摘要翻译： 公开了一种自适应控制装置，其具有用于计算参考信号和反馈信号之间的差的误差计算单元和用于施加自适应控制的自适应控制器，以便减小差异并使自适应控制的结果反映在 参考信号。 自适应控制装置具有延迟单元，用于将参考信号和反馈信号中的至少一个延迟设定的延迟时间，使得参考信号和反馈信号将同时输入到运算单元; 频率分量检测单元，用于检测参考信号的频率分量; 延迟时间获取单元，用于获取符合频率分量的延迟时间; 以及延迟时间设定单元，用于在所述延迟单元中设置所获取的延迟时间。

    Adaptive control apparatus
    10.
    发明授权
    Adaptive control apparatus 有权
    自适应控制装置

    公开(公告)号：US07496152B2

    公开(公告)日：2009-02-24

    申请号：US10976290

    申请日：2004-10-26

    申请人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    发明人： Kazuo Nagatani ,  Tokuro Kubo ,  Hiroyoshi Ishikawa ,  Yasuyuki Oishi ,  Toru Maniwa ,  Hiroyuki Hayashi ,  Hajime Hamada ,  Nobukazu Fudaba

    IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

    CPC分类号： H03F1/32 ,  H03F1/02 ,  H03F1/3247 ,  H03F1/345 ,  H03F3/24 ,  H04B2001/045

    摘要： Disclosed is an adaptive control apparatus having an error calculation unit for calculating the difference between a reference signal and a feedback signal, and an adaptive controller for applying adaptive control so as to diminish the difference and causing the result of adaptive control to be reflected in the reference signal. The adaptive control apparatus has a delay unit for delaying at least one of the reference signal and feedback signal by a set delay time in such a manner that the reference signal and feedback signal will be input simultaneously to the arithmetic unit; a frequency-component detecting unit for detecting a frequency component of the reference signal; a delay-time acquisition unit for acquiring delay time conforming to the frequency component; and a delay-time setting unit for setting the acquired delay time in the delay unit.

    摘要翻译： 公开了一种自适应控制装置，其具有用于计算参考信号和反馈信号之间的差的误差计算单元和用于施加自适应控制的自适应控制器，以便减小差异并使自适应控制的结果反映在 参考信号。 自适应控制装置具有延迟单元，用于将参考信号和反馈信号中的至少一个延迟设定的延迟时间，使得参考信号和反馈信号将同时输入到运算单元; 频率分量检测单元，用于检测参考信号的频率分量; 延迟时间获取单元，用于获取符合频率分量的延迟时间; 以及延迟时间设定单元，用于在所述延迟单元中设置所获取的延迟时间。