公开(公告)号：US06552609B2

公开(公告)日：2003-04-22

申请号：US09784601

申请日：2001-02-15

申请人： Hajime Hamada ,  Yasuyuki Oishi ,  Takuro Kubo ,  Takayoshi Ode ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa

发明人： Hajime Hamada ,  Yasuyuki Oishi ,  Takuro Kubo ,  Takayoshi Ode ,  Kazuo Nagatani ,  Hiroyoshi Ishikawa

IPC分类号： H03F126

CPC分类号： H03F1/3294 ,  H03F1/3247 ,  H03F1/3282

摘要： Digital input signals xi and xq are multiplied by an multiplier 31 with a distortion compensation coefficient of a distortion compensation coefficient storage unit 33 and then processed by a modulation/amplification unit 1 for sending in the form of analog output signals Z. The analog output signals Z are fed back for processings by an attenuator 43, a mixer 41, a quadrature demodulator 39, etc., and then fed to subtractors 35i and 35q. The subtractors 35i and 35q find differences (errors) between analog input signals Xi and Xq and analog feedback signals Yi and Yq, respectively, and feeds the analog error signals to ADCs 36i and 36q, respectively. The ADCs 36i and 36q convert the analog error signals into digital signals and feeds the digital signals to a distortion compensation coefficient arithmetic unit 5. The distortion compensation coefficient arithmetic unit 5 figures out a new distortion compensation coefficient to update the distortion compensation coefficient storage unit 33.

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。

公开(公告)号：US20050047521A1

公开(公告)日：2005-03-03

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： H03F1/32 ,  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。

公开(公告)号：US07973522B2

公开(公告)日：2011-07-05

申请号：US12005380

申请日：2007-12-27

申请人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

发明人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

IPC分类号： G05F1/40

CPC分类号： H03F1/0227 ,  H02M3/3372 ,  H03F3/20 ,  H03F2200/228 ,  H03F2200/504

摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.

摘要翻译： 提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。 通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。 上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。 从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从 整流电路是可变的。

公开(公告)号：US20080144338A1

公开(公告)日：2008-06-19

申请号：US12005380

申请日：2007-12-27

申请人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

发明人： Takeshi Takano ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Toru Maniwa

IPC分类号： H02M3/335 ,  H03G9/00

CPC分类号： H03F1/0227 ,  H02M3/3372 ,  H03F3/20 ,  H03F2200/228 ,  H03F2200/504

摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.

摘要翻译： 提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。 通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。 上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。 从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从 整流电路是可变的。

公开(公告)号：US07254377B2

公开(公告)日：2007-08-07

申请号：US10015369

申请日：2001-12-12

申请人： Satoshi Maruyama ,  Osamu Mita ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Norio Tozawa ,  Fumihiko Kobayashi

发明人： Satoshi Maruyama ,  Osamu Mita ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Norio Tozawa ,  Fumihiko Kobayashi

IPC分类号： H04B1/04

CPC分类号： H03F3/602 ,  H03F1/3241 ,  H03F1/3247 ,  H04B1/0483 ,  H04B2001/0425

摘要： A parallel operation system of transmission amplifiers enable the parallel running by the two distortion compensation amplifiers using the digital pre-distorter system and to provide a parallel operation system of the transmission amplifiers that makes it possible to switch to respective single running easily. The parallel operation system includes first and second transmission amplifiers which receive common input signals for outputting amplified signals from respective ones; and a coupling unit which combines outputs of the first and second transmission amplifiers, to provide as its output; the first and second transmission amplifiers each having a main amplifier; and a modulation unit disposed on the input side of the main amplifier; wherein the output of one of the modulation units included in the first and second transmission amplifiers is fed in common to the main amplifiers included in the first and second transmission amplifiers.

摘要翻译： 传输放大器的并行操作系统使得能够通过使用数字预失真器系统的两个失真补偿放大器的并行运行，并且提供可以容易地切换到相应的单个运行的发送放大器的并行操作系统。 并行操作系统包括第一和第二发送放大器，其接收用于从相应输入信号输出放大信号的公共输入信号; 以及耦合单元，其组合第一和第二发送放大器的输出，以提供其输出; 第一和第二发送放大器各自具有主放大器; 以及调制单元，设置在所述主放大器的输入侧; 其中包括在第一和第二发送放大器中的调制单元之一的输出被共同馈送到包括在第一和第二发送放大器中的主放大器。

公开(公告)号：US07224720B2

公开(公告)日：2007-05-29

申请号：US10625337

申请日：2003-07-22

申请人： Yasuyuki Oishi ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

发明人： Yasuyuki Oishi ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

IPC分类号： H04B1/69 ,  H03D3/24

CPC分类号： H04B1/7075 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7095 ,  H04B2201/70707

摘要： The present invention reduces the scale of circuitry and shortens the code phase detection time needed to achieve initial synchronization. In a correlator for calculating correlation between a received spreading code contained in a received spread-spectrum signal and a reference spreading code, a combined code generator is included. The combined code generator outputs a combined spreading code by weighting and combining a plurality of phase-shifted reference spreading codes A1–AM. Further, an arithmetic circuit calculates correlation between the received spreading code and the plurality of phase-shifted reference spreading codes simultaneously. A phase detection circuit detects the phase difference between the received spreading code and a reference spreading code, namely the phase of the received spreading code from the results of the arithmetic operation.

摘要翻译： 本发明减小了电路规模，缩短了实现初始同步所需的码相位检测时间。 在用于计算包含在接收扩展频谱信号中的接收扩展码与参考扩展码之间的相关性的相关器中，包括组合码发生器。 组合代码生成器通过加权和组合多个相移参考扩展码A 1 -M M来输出组合的扩展码。 此外，算术电路同时计算接收的扩展码与多个相移参考扩展码之间的相关性。 相位检测电路从算术运算结果检测接收到的扩展码与参考扩展码之间的相位差，即接收到的扩展码的相位。

公开(公告)号：US06563859B1

公开(公告)日：2003-05-13

申请号：US09440341

申请日：1999-11-15

申请人： Yasuyuki Oishi ,  Michiharu Nakamura ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

发明人： Yasuyuki Oishi ,  Michiharu Nakamura ,  Kazuo Nagatani ,  Hajime Hamada ,  Yoshihiko Asano

IPC分类号： H04B1707

CPC分类号： H04B1/7115 ,  H04B1/692 ,  H04L5/026 ,  H04L27/2647

摘要： A multi-carrier signal received by an antenna is converted into a signal of an IF band by an RX, and converted into an I signal and a Q signal by an quadrature detector. The I signal and the Q signal as multi-carrier signals are converted into digital signals by an A/D converter, and input to complex filters. The complex filters extract a complex signal having a specified carrier. Then, complex filters shift the center frequency of the extracted complex signal into 0 Hz. The obtained base band signal is input to a finger, and despread and demodulated. The despread and demodulated signal is RAKE synthesized by a synthesis unit, and transmitted to a signal discrimination unit.

摘要翻译： 由天线接收的多载波信号通过RX被转换为IF频带的信号，并由正交检波器转换为I信号和Q信号。 作为多载波信号的I信号和Q信号由A / D转换器转换成数字信号，并输入到复数滤波器。 复数滤波器提取具有指定载波的复信号。 然后，复数滤波器将提取的复信号的中心频率移动到0Hz。 所获得的基带信号被输入到手指，并被解扩和解调。 解扩信号由合成单元RAKE合成，发送到信号鉴别单元。

公开(公告)号：US6009090A

公开(公告)日：1999-12-28

申请号：US872362

申请日：1997-06-10

申请人： Yasuyuki Oishi ,  Kazuo Nagatani ,  Hidenobu Fukumasa ,  Hajime Hamada ,  Yoshihiko Asano

发明人： Yasuyuki Oishi ,  Kazuo Nagatani ,  Hidenobu Fukumasa ,  Hajime Hamada ,  Yoshihiko Asano

IPC分类号： H04J11/00 ,  H04B1/707 ,  H04J13/00 ,  H04B7/216 ,  H04B15/00

CPC分类号： H04B1/707 ,  H04B2201/70706

摘要： A code multiplexing wireless apparatus for amplifying a code-multiplexed signal and then transmitting the amplified signal includes the following to reduce output back-off, improve the efficiency of a power amplifier and suppress broadening of the frequency spectrum: (1) a code-multiplexed signal generator for multiplying each item of transmission data by a spreading code sequence and combining spread-spectrum modulated signals to generate a code-multiplexed signal, (2) a signal-peak suppressing unit for holding the envelope of the code-multiplexed signal below a set level, and (3) a power amplifier for amplifying the code-multiplexed signal and transmitting the amplified code-multiplexed signal from an antenna.

摘要翻译： 用于放大代码多路复用信号然后发送放大信号的代码复用无线装置包括以下以减少输出回退，提高功率放大器的效率并抑制频谱的扩展：（1）码复用 信号发生器，用于将每个发送数据项乘以扩展码序列，并组合扩频调制信号以产生码复用信号;（2）信号峰值抑制单元，用于将码复用信号的包络保持在低于 设置电平，以及（3）功率放大器，用于放大代码复用信号并从天线发送放大的码复用信号。

公开(公告)号：US20100062733A1

公开(公告)日：2010-03-11

申请号：US12567510

申请日：2009-09-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

IPC分类号： H04B1/04

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/19

摘要： A distortion correction control apparatus is for compensating for a burst distortion of a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a generation unit that generates a distortion correction coefficient having reverse characteristics to the foregoing burst distortion; a unit that multiplies the distortion correction coefficient output from the generation unit by the input signal or adds the distortion correction coefficient output from the generation unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal and a branch signal fed back as an output signal of the transmission amplifier, parameters of functions used for adaptively generating the distortion correction coefficient, and that inputs the updated parameters to the generation unit.

摘要翻译： 失真校正控制装置用于补偿由发射目标的输入信号的脉冲串引起的发射放大器的脉冲串失真。 该装置包括产生具有与上述突发畸变相反的特性的失真校正系数的生成单元; 一个单元，用于通过输入信号将从生成单元输出的失真校正系数乘以输入信号，或将从生成单元输出的失真校正系数与输入信号相加，或者将通过输入信号存在与不存在切换之间的突发信息相加; 以及更新单元，其基于所述输入信号和作为所述发送放大器的输出信号反馈的分支信号来更新用于自适应地生成所述失真校正系数的功能的参数，并且将更新的参数输入到所述生成单元。