公开(公告)号：US07106133B2

公开(公告)日：2006-09-12

申请号：US10999747

申请日：2004-11-30

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

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

IPC分类号： H03F1/26

CPC分类号： H03F1/3294 ,  H03F1/3247 ,  H03F1/3288 ,  H03F2201/3233 ,  H04L27/368

摘要： The distortion compensator which compensates the nonlinearity of a power amplifier in a radio communication device stops the operation of updating the automatic phase adjustment, automatic delay adjustment, equalizer adjustment, and distortion compensation table when something wrong is detected in the input to a distortion compensation unit such as a reference signal, feedback signal, address of the distortion compensation table, and phase value so that the distortion compensation coefficients may not be improperly updated.

摘要翻译： 补偿无线电通信装置中的功率放大器的非线性的失真补偿器在失真补偿单元的输入中检测到错误时停止更新自动相位调整，自动延迟调整，均衡器调整和失真补偿表的操作 例如参考信号，反馈信号，失真补偿表的地址和相位值，使得失真补偿系数可能不会被不正确地更新。

公开(公告)号：US20060133524A1

公开(公告)日：2006-06-22

申请号：US11077909

申请日：2005-03-11

申请人： Hajime Hamada ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

发明人： Hajime Hamada ,  Tokuro Kubo ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

IPC分类号： H04K1/10

CPC分类号： H04L27/2614

摘要： A multicarrier signal transmission apparatus able to adjust the balance between the quality of reception and generation of an out-band spurious wave by a simple configuration, comprising a peak detector for detecting a peak part of a transmitted multicarrier signal, a window function generator for generating a window function of an amplitude in accordance with a peak level of a detected peak part, and a peak suppressor for attenuating the peak part in accordance with the value of the generated window function, and a multicarrier signal receiving apparatus, multicarrier signal transmission method, multicarrier signal receiving method, and communication system used with the same.

摘要翻译： 一种多载波信号传输装置，其能够通过简单的配置来调整接收质量和产生带外杂散波之间的平衡，包括用于检测发射的多载波信号的峰值部分的峰值检测器，用于产生 根据所检测的峰值部分的峰值电平的幅度的窗口函数，以及用于根据所生成的窗口函数的值衰减峰值部分的峰值抑制器，以及多载波信号接收装置，多载波信号发送方法， 多载波信号接收方法和通信系统。

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。

公开(公告)号：US06757525B1

公开(公告)日：2004-06-29

申请号：US10280705

申请日：2002-10-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Hajime Hamada ,  Nobukazu Fudaba ,  Mitsuharu Hamano ,  Tohru Sasaki ,  Yuki Kanno ,  Koichi Hanada

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Hajime Hamada ,  Nobukazu Fudaba ,  Mitsuharu Hamano ,  Tohru Sasaki ,  Yuki Kanno ,  Koichi Hanada

IPC分类号： H04B104

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H03F1/3288 ,  H03F2200/372 ,  H04B2001/0425

摘要： In an adaptive predistorter type distortion compensating apparatus for calculating a distortion compensating coefficient by using an adaptive algorithm so as to reduce an error between a reference signal and a feedback signal of a circuit which generates a distortion on the basis of the reference signal, and for compensating the distortion by providing the distortion compensating coefficient to the reference signal, a phase adjustment circuit is provided for determining a phase shift value which reduces a phase difference between a reference signal and a feedback signal, for correcting the phase of the reference signal or the feedback signal by the phase shift value, and for calculating the distortion compensating apparatus after the correction.

摘要翻译： 在一种用于通过使用自适应算法来计算失真补偿系数的自适应预失真器类型失真补偿装置中，以便减少参考信号和基于参考信号产生失真的电路的反馈信号之间的误差，并且对于 通过向参考信号提供失真补偿系数来补偿失真，提供相位调整电路，用于确定减小参考信号和反馈信号之间的相位差的相移值，用于校正参考信号的相位或 通过相移值反馈信号，并且用于在校正之后计算失真补偿装置。

公开(公告)号：US08737937B2

公开(公告)日：2014-05-27

申请号：US13542368

申请日：2012-07-05

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Nobukazu Fudaba

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Nobukazu Fudaba

IPC分类号： H04B1/04

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/245 ,  H03F2201/3233

摘要： A distortion compensation apparatus includes an amplifying unit, a plurality of distortion compensation coefficient storage units, a first address generating unit, a second address generating unit, and a distortion compensating unit. The amplifying unit amplifies an input signal. A plurality of distortion compensation coefficient storage units store the distortion compensation coefficients for compensating for the distortion of the amplifying unit by being associated with two different addresses. The first address generating unit generates a first address based on the current input signal. The second address generating unit generates a second address different from the first address based on the previous input signal. The distortion compensating unit obtains the distortion compensation coefficient corresponding to a combination of the first and second addresses from each of the distortion compensation coefficient storage units and performs a pre-distortion processing for the current input signal to the amplifying unit using the obtained distortion compensation coefficient.

摘要翻译： 失真补偿装置包括放大单元，多个失真补偿系数存储单元，第一地址生成单元，第二地址生成单元和失真补偿单元。 放大单元放大输入信号。 多个失真补偿系数存储单元通过与两个不同的地址相关联来存储用于补偿放大单元的失真的失真补偿系数。 第一地址生成单元基于当前输入信号生成第一地址。 第二地址生成单元基于先前的输入信号生成与第一地址不同的第二地址。 失真补偿单元从每个失真补偿系数存储单元获得与第一和第二地址的组合相对应的失真补偿系数，并使用获得的失真补偿系数对放大单元执行当前输入信号的预失真处理 。

公开(公告)号：US08588711B2

公开(公告)日：2013-11-19

申请号：US13234665

申请日：2011-09-16

申请人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Kazuo Nagatani ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Kazuo Nagatani ,  Yasuyuki Oishi

IPC分类号： H04B1/04 ,  H03F1/32

CPC分类号： H03F1/3247 ,  H03F1/3258 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3233 ,  H03M1/0614 ,  H03M1/66 ,  H04B1/0475

摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.

摘要翻译： 一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的， 采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真 补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。

公开(公告)号：US20120068768A1

公开(公告)日：2012-03-22

申请号：US13234665

申请日：2011-09-16

申请人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Kazuo Nagatani ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Kazuo Nagatani ,  Yasuyuki Oishi

IPC分类号： H03F1/26 ,  H03M1/12

CPC分类号： H03F1/3247 ,  H03F1/3258 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3233 ,  H03M1/0614 ,  H03M1/66 ,  H04B1/0475

摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.

摘要翻译： 一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的， 采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真 补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。

公开(公告)号：US20130015917A1

公开(公告)日：2013-01-17

申请号：US13542368

申请日：2012-07-05

申请人： Hiroyoshi ISHIKAWA ,  Kazuo Nagatani ,  Nobukazu Fudaba

发明人： Hiroyoshi ISHIKAWA ,  Kazuo Nagatani ,  Nobukazu Fudaba

IPC分类号： H03F1/32

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/245 ,  H03F2201/3233

摘要： A distortion compensation apparatus includes an amplifying unit, a plurality of distortion compensation coefficient storage units, a first address generating unit, a second address generating unit, and a distortion compensating unit. The amplifying unit amplifies an input signal. A plurality of distortion compensation coefficient storage units store the distortion compensation coefficients for compensating for the distortion of the amplifying unit by being associated with two different addresses. The first address generating unit generates a first address based on the current input signal. The second address generating unit generates a second address different from the first address based on the previous input signal. The distortion compensating unit obtains the distortion compensation coefficient corresponding to a combination of the first and second addresses from each of the distortion compensation coefficient storage units and performs a pre-distortion processing for the current input signal to the amplifying unit using the obtained distortion compensation coefficient.

摘要翻译： 失真补偿装置包括放大单元，多个失真补偿系数存储单元，第一地址生成单元，第二地址生成单元和失真补偿单元。 放大单元放大输入信号。 多个失真补偿系数存储单元通过与两个不同的地址相关联来存储用于补偿放大单元的失真的失真补偿系数。 第一地址生成单元基于当前输入信号生成第一地址。 第二地址生成单元基于先前的输入信号生成与第一地址不同的第二地址。 失真补偿单元从每个失真补偿系数存储单元获得与第一和第二地址的组合相对应的失真补偿系数，并使用获得的失真补偿系数对放大单元执行当前输入信号的预失真处理 。

公开(公告)号：US20070110183A1

公开(公告)日：2007-05-17

申请号：US10568334

申请日：2004-03-31

申请人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Tokuro Kubo

发明人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Tokuro Kubo

IPC分类号： H04L25/49

CPC分类号： H04L27/364 ,  H03C3/406 ,  H04L2027/0016 ,  H04L2027/0018 ,  H04L2027/0067 ,  H04L2027/0069

摘要： In an electronic device having a circuit outputting a vector sum of two quadrature vector signals, an offset compensating device compensates the offset contained in the vector sum. The offset compensating device aims to flexibly adapt to deviation in characteristics and performances and various fluctuations, and to compensate offset stably and accurately. The offset compensating device includes a deviation monitor unit creating a vector signal by A/D-converting the aforementioned vector sum and by quadrature-demodulating it and monitoring the deviation of the DC components superposed on the vector signal, and an adaptive control unit updating the compensation vector determined in advance, based on adaptive algorithm minimizing expectation value of the product of the inner product between an increment vector and the compensation vector, and the latest deviation vector, and adding the compensation vector to an offset vector to be inputted, while being superposed on the input signal, to a circuit.

摘要翻译： 在具有输出两个正交矢量信号的向量和的电路的电子设备中，偏移补偿装置补偿矢量和中包含的偏移量。 偏移补偿装置旨在灵活适应特性，性能和各种波动的偏差，并且稳定和准确地补偿偏移。 偏移补偿装置包括：偏差监视器单元，通过对前述矢量和进行A / D转换，并对其进行正交解调并监视叠加在矢量信号上的直流分量的偏差来产生矢量信号;以及自适应控制单元， 基于自适应算法，最小化增量向量与补偿向量之间的内积乘积的最终期望值与最新偏差矢量，并将补偿向量加到要输入的偏移向量的预先确定的补偿向量，同时 叠加在输入信号上的电路。

公开(公告)号：US07848449B2

公开(公告)日：2010-12-07

申请号：US10568334

申请日：2004-03-31

申请人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Tokuro Kubo

发明人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Tokuro Kubo

IPC分类号： H04L25/49

CPC分类号： H04L27/364 ,  H03C3/406 ,  H04L2027/0016 ,  H04L2027/0018 ,  H04L2027/0067 ,  H04L2027/0069

摘要： In an electronic device having a circuit outputting a vector sum of two quadrature vector signals, an offset compensating device compensates the offset contained in the vector sum. The offset compensating device aims to flexibly adapt to deviation in characteristics and performances and various fluctuations, and to compensate offset stably and accurately. The offset compensating device includes a deviation monitor unit creating a vector signal by A/D-converting the aforementioned vector sum and by quadrature-demodulating it and monitoring the deviation of the DC components superposed on the vector signal, and an adaptive control unit updating the compensation vector determined in advance, based on adaptive algorithm minimizing expectation value of the product of the inner product between an increment vector and the compensation vector, and the latest deviation vector, and adding the compensation vector to an offset vector to be inputted, while being superposed on the input signal, to a circuit.

摘要翻译： 在具有输出两个正交矢量信号的向量和的电路的电子设备中，偏移补偿装置补偿矢量和中包含的偏移量。 偏移补偿装置旨在灵活适应特性，性能和各种波动的偏差，并且稳定和准确地补偿偏移。 偏移补偿装置包括：偏差监视器单元，通过对前述矢量和进行A / D转换，并对其进行正交解调并监视叠加在矢量信号上的直流分量的偏差来产生矢量信号;以及自适应控制单元， 基于自适应算法，最小化增量向量与补偿向量之间的内积乘积的最终期望值与最新偏差矢量，并将补偿向量加到要输入的偏移向量的预先确定的补偿向量，同时 叠加在输入信号上的电路。