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91. 发明申请

US20090190647A1 DISTORTION COMPENSATING APPARATUS AND POWER AMPLIFIER APPARATUS 有权
标题翻译：失真补偿装置和功率放大器装置
公开(公告)号：US20090190647A1
公开(公告)日：2009-07-30
申请号：US12333576
申请日：2008-12-12
申请人： Yuichi Utsunomiya , Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani
发明人： Yuichi Utsunomiya , Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani
IPC分类号： H04L27/01
CPC分类号： H03F1/3247 , H03F1/3241 , H03F2200/165 , H03F2200/451 , H03F2201/3233
摘要： A distortion compensating apparatus has an adaptive distortion compensating unit to compensate nonlinear distortion by controlling an input signal of a nonlinear distortion circuit by using an adaptive algorithm so as to reduce an error between a reference signal and a feedback signal from the nonlinear distortion circuit; and an adaptive equalizer connected between the adaptive distortion compensating unit and the nonlinear distortion circuit or provided in front of the adaptive distortion compensating unit. The adaptive equalizer includes a digital filter to form an amplitude characteristic and a phase characteristic of the input signal on the basis of a filter coefficient group that is set to the digital filter; a memory to hold in advance the filter coefficient group; and a control unit to control reading of the filter coefficient group from the memory on the basis of the input signal and the feedback signal.
摘要翻译：失真补偿装置具有自适应失真补偿单元，用于通过使用自适应算法来控制非线性失真电路的输入信号来补偿非线性失真，以便减少来自非线性失真电路的参考信号和反馈信号之间的误差; 以及连接在自适应失真补偿单元和非线性失真电路之间或设置在自适应失真补偿单元前面的自适应均衡器。自适应均衡器包括数字滤波器，用于基于设置到数字滤波器的滤波器系数组来形成输入信号的幅度特性和相位特性; 提前保存滤波器系数组的存储器; 以及控制单元，其基于输入信号和反馈信号来控制从存储器读取滤波器系数组。

92. 发明申请

US20090160548A1 POWER AMPLIFYING APPARATUS 有权
标题翻译：功率放大器
公开(公告)号：US20090160548A1
公开(公告)日：2009-06-25
申请号：US12335572
申请日：2008-12-16
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
IPC分类号： H03F1/02
CPC分类号： H03F1/0227
摘要： A power amplifying apparatus includes a high-speed low pass filter which inputs an envelope signal included in a transmission signal therein, a low-speed low pass filter which inputs the envelope signal therein, a determination unit which inputs the envelope signal therein and determines rising or falling of the envelope signal, a selecting unit which selects one of the high-speed low pass filter and the low-speed low pass filter according to a determined result of the determination unit, and a voltage supply unit which generates a voltage based on a signal input according to a selection by the selecting unit and supplies the voltage to a power amplifier which inputs the transmission signal therein so as to amplify a power of the transmission signal.
摘要翻译：功率放大装置包括：高速低通滤波器，其输入包括在其中的发送信号中的包络信号;低速低通滤波器，其中输入包络信号;确定单元，其中输入包络信号并确定上升或包围信号的下降;选择单元，其根据确定单元的确定结果选择高速低通滤波器和低速低通滤波器之一;以及电压供应单元，其基于根据选择单元的选择输入信号，并将电压提供给输入其中的发送信号的功率放大器，以放大发送信号的功率。

93. 发明授权

US08933752B2 Power amplifier apparatus, distortion compensation coefficient updating method, and transmission apparatus 有权
标题翻译：功率放大器装置，失真补偿系数更新方法和发送装置
公开(公告)号：US08933752B2
公开(公告)日：2015-01-13
申请号：US13277409
申请日：2011-10-20
申请人： Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
发明人： Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F3/24 , H03F2201/3233
摘要： A power amplifier apparatus that includes a processor that performs a first distortion compensation processing on an input signal using a distortion compensation coefficient to obtain a first signal and an amplifier that amplifies the first signal. The processor performs a second distortion compensation processing the amplified signal using the distortion compensation coefficient to obtain a second signal and updates the distortion compensation coefficient to enable convergence between the first signal and the second signal.
摘要翻译：一种功率放大器装置，包括处理器，其使用失真补偿系数对输入信号执行第一失真补偿处理以获得第一信号，以及放大器，其放大第一信号。处理器使用失真补偿系数执行第二失真补偿处理放大信号以获得第二信号，并且更新失真补偿系数，以使能第一信号和第二信号之间的收敛。

94. 发明授权

US08571495B2 Distortion compensation apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US08571495B2
公开(公告)日：2013-10-29
申请号：US12701923
申请日：2010-02-08
申请人： Kazuo Nagatani , Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Shohei Ishikawa
发明人： Kazuo Nagatani , Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Shohei Ishikawa
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04L27/366 , H03F1/3258 , H03F3/195 , H03F3/24 , H03F2201/3233
摘要： A distortion compensation apparatus includes a distortion compensation signal generation unit that performs, on a transmission signal, distortion compensation processing using a series operation; a coefficient updating unit that updates series operation coefficients used for the series operation based on a feedback signal of a power amplification output which is output through power amplification processing of a distortion compensation signal output from the distortion compensation signal generation unit, and based on the distortion compensation signal; a memory that stores the distortion compensation signal corresponding to a transmission signal having a given power value and the feedback signal of the power amplification output as restraint information; and a control unit that performs control so that, in accordance with the power value of the transmission signal, restraint information corresponding to a power value different from the power value of the transmission signal is read and used for updating the series operation coefficients.
摘要翻译：失真补偿装置包括失真补偿信号生成单元，其对传输信号进行使用串联操作的失真补偿处理; 系数更新单元，其基于通过从失真补偿信号生成单元输出的失真补偿信号的功率放大处理输出的功率放大输出的反馈信号，并且基于失真来更新用于串联运算的串联运算系数补偿信号; 存储器，其存储与具有给定功率值的发送信号对应的失真补偿信号和功率放大输出的反馈信号作为约束信息; 以及控制单元，其执行控制，使得根据所述发送信号的功率值，读取与所述发送信号的功率值不同的功率值对应的约束信息，并且用于更新所述串联操作系数。

95. 发明授权

US08451055B2 Distortion compensating apparatus, transmitting apparatus, and distortion compensating method 有权
标题翻译：失真补偿装置，发送装置和失真补偿方法
公开(公告)号：US08451055B2
公开(公告)日：2013-05-28
申请号：US13011295
申请日：2011-01-21
申请人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani
发明人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： An apparatus includes: a unit that stores the look-up table including distortion compensation coefficients; a unit that selects addresses according to an input signal, acquires coefficients stored at the selected addresses, and performs the predistortion of the input signal by using the acquired coefficients; a unit that calculates an error signal by comparing with the input signal a feedback signal that indicates an output of a power amplifier to which a result of the predistortion is inputted; a unit that calculates coefficients from the error signal and the acquired coefficients by using the adaptive algorithm; a unit that, for each of the selected addresses, selects coefficients as adequate coefficients from among the calculated coefficients according to the error signal; and a unit that, for each of the selected addresses, calculates an average value of the adequate coefficients and replaces a stored coefficient in the look-up table with the average value.
摘要翻译：一种装置，包括：存储包括失真补偿系数的查找表的单元; 根据输入信号选择地址的单元，获取存储在所选择的地址的系数，并通过使用获取的系数来执行输入信号的预失真; 通过与输入信号进行比较来计算误差信号的单元，反馈信号指示输入预失真结果的功率放大器的输出; 通过使用自适应算法从误差信号和采集的系数计算系数的单元; 对于每个所选择的地址，根据误差信号从所计算的系数中选择系数作为适当系数的单元; 以及对于每个所选择的地址，计算所述适当系数的平均值并且用所述平均值替换所述查找表中存储的系数的单元。

96. 发明授权

US08009756B2 Peak suppressing and restoring method, transmitter, receiver, and peak suppressing and restoring system 有权
标题翻译：峰值抑制和恢复方法，发射机，接收机和峰值抑制和恢复系统
公开(公告)号：US08009756B2
公开(公告)日：2011-08-30
申请号：US12478932
申请日：2009-06-05
申请人： Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani
发明人： Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani
IPC分类号： H04B15/00 , H04B1/10 , H04L25/49 , H04L27/08
CPC分类号： H04L27/2624
摘要： A peak suppressing and restoring method includes suppressing a peak of a signal, starting suppression when a suppression start value is lower than a suppression target value, using a function of a gain characteristic such that a peak amplitude value attains the suppression target value, and restoring the suppressed peak of the signal using an inverse function of the function of the gain characteristic.
摘要翻译：峰值抑制和恢复方法包括：使用增益特性使得峰值振幅值达到抑制目标值的功能来抑制信号的峰值，抑制开始值低于抑制目标值时的开始抑制，并恢复信号的抑制峰值使用增益特性的函数的反函数。

97. 发明授权

US07991073B2 Distortion compensation apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US07991073B2
公开(公告)日：2011-08-02
申请号：US12639510
申请日：2009-12-16
申请人： Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani
发明人： Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani
IPC分类号： H04L25/49 , H03K7/00
CPC分类号： H03F3/24 , H03F1/3247 , H03F1/3258 , H03F2200/105 , H03F2200/207 , H03F2201/3227 , H03F2201/3233 , H04L27/368
摘要： A distortion compensation apparatus includes a distortion compensation unit that performs distortion compensation processing on a transmission signal by a series operation, a coefficient update unit that updates a group of series operation coefficients used for the series operation based on a feedback signal of transmission signal output that is output after power amplification processing is performed on output of the distortion compensation unit and the transmission signal, an initial coefficient memory that stores the groups of series operation coefficients that become initial values for coefficient update processing by the coefficient update unit, and a power fluctuation detection unit that detects a power fluctuation of the transmission signal and, when the power fluctuation is detected, reads the groups of series operation coefficients from the initial coefficient memory and provides the groups of series operation coefficients to the coefficient update unit.
摘要翻译：失真补偿装置包括：通过串联运算对发送信号进行失真补偿处理的失真补偿部，基于发送信号输出的反馈信号更新用于串联运算的一组串联运算系数的系数更新部，在对失真补偿单元和发送信号的输出执行功率放大处理之后输出;存储由系数更新单元存储成为系数更新处理的初始值的串联运算系数组的初始系数存储器，以及功率波动检测单元，其检测发送信号的功率波动，并且当检测到功率波动时，从初始系数存储器读取串联操作系数组，并将系列操作系数组提供给系数更新单元。

98. 发明授权

US08433262B2 Transmission device and transmission method 有权
标题翻译：传输装置及传输方式
公开(公告)号：US08433262B2
公开(公告)日：2013-04-30
申请号：US12850998
申请日：2010-08-05
申请人： Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Kazuo Nagatani
发明人： Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Kazuo Nagatani
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H03G3/3036 , H04B2001/0416
摘要： A disclosed transmission device includes a voltage control signal generating unit configured to generate a first voltage control signal from a transmission signal, an amplifier configured to amplify the transmission signal in response to the first voltage control signal, a first timing adjusting unit configured to adjust a control timing for the first voltage control signal, and a control timing setting unit configured to set the control timing adjusted by the first timing adjusting unit based on the output signal from the amplifier and the transmission signal.
摘要翻译：所公开的发送装置包括：电压控制信号生成部，被配置为从发送信号生成第一电压控制信号，被配置为响应于第一电压控制信号放大发送信号的放大器;第一定时调整部，第一电压控制信号的控制定时，以及控制定时设定单元，被配置为基于来自放大器的输出信号和发送信号来设定由第一定时调整单元调整的控制定时。

99. 发明授权

US07969205B2 Peak power reduction method 有权
标题翻译：峰值功率降低方法
公开(公告)号：US07969205B2
公开(公告)日：2011-06-28
申请号：US12577019
申请日：2009-10-09
申请人： Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya
发明人： Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya
IPC分类号： H03B21/00
CPC分类号： H04L27/2614 , H04B2201/70706 , H04L27/0008 , H04L27/2623
摘要： A technique wherein when signals, the modulation schemes of which are different, are to be combined, performing the peak suppression using amounts of the respective modulation schemes can effectively reduce the PAPR of a resulting combined signal. A peak suppressing method for use in a peak suppressing circuit, which combines input signals of different modulation schemes in a time domain to provide a combined signal, comprises detecting, as a peak, that portion of the combined signal which excesses a threshold value to generate a peak signal in accordance with the peak; converting the peak signal into a frequency domain signal and then dividing it into signals originating from the input signals to use these input-signal-originated signals as respective suppression signals; and adding, to the input signals, the suppression signals having different suppression amounts for the respective modulation schemes, thereby performing the peak suppression.
摘要翻译：一种技术，其中当要组合其调制方案不同的信号时，使用各个调制方案的量执行峰值抑制可以有效地减少所得到的组合信号的PAPR。在峰值抑制电路中使用的峰值抑制方法，其组合在时域中的不同调制方案的输入信号以提供组合信号，包括检测超过阈值以产生的组合信号的那部分作为峰值，根据峰值的峰值信号; 将峰值信号转换为频域信号，然后将其分为来自输入信号的信号，以将这些输入信号发起的信号用作相应的抑制信号; 并且向输入信号添加对于各个调制方案具有不同抑制量的抑制信号，由此执行峰值抑制。

100. 发明授权

US07920644B2 Predistortion apparatus and predistortion method 有权
标题翻译：预失真装置和预失真方法
公开(公告)号：US07920644B2
公开(公告)日：2011-04-05
申请号：US12642003
申请日：2009-12-18
申请人： Hajime Hamada , Hiroyoshi Ishikawa , Yuichi Utsunomiya , Kazuo Nagatani , Nobukazu Fudaba , Shohei Ishikawa
发明人： Hajime Hamada , Hiroyoshi Ishikawa , Yuichi Utsunomiya , Kazuo Nagatani , Nobukazu Fudaba , Shohei Ishikawa
IPC分类号： H04L25/49
CPC分类号： H03F1/3247
摘要： A predistortion apparatus for compensating for a distortion arising from a non linear property in input to output characteristics of an amplifier, by processing calculation of a plurality of coefficients for a plurality of power series defining the predistortion characteristics for a plurality of power ranges, respectively, the predistortion apparatus includes: a coefficient update unit for setting and updating coefficients of the power series to provide the predistortion characteristics for the plurality of power ranges in accordance with a comparison between the input and output of the amplifier; and a determination unit for determining at least one threshold value defining the plurality of power ranges by shifting the threshold value and operating the coefficient update unit for updating the coefficients for each of the power series corresponding to each of the power ranges defined by the shifted threshold value.
摘要翻译：一种预失真装置，用于通过分别对多个功率范围的多个功率系列的多个功率系列进行计算，以分别对多个功率范围的预失真特性进行处理，来补偿由输入到放大器的输出特性中的非线性特性引起的失真，预失真装置包括：系数更新单元，用于根据放大器的输入和输出之间的比较，设置和更新功率系列的系数，以提供多个功率范围的预失真特性; 以及确定单元，用于通过偏移所述阈值来确定定义所述多个功率范围的至少一个阈值，并操作所述系数更新单元，用于更新与由所述移位阈值定义的每个功率范围对应的每个功率序列的系数值。

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