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51.发明授权Power amplifier apparatus, distortion compensation coefficient updating method, and transmission apparatus 有权功率放大器装置，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
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。
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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
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。
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53.发明授权公开(公告)号：US08451055B2
公开(公告)日：2013-05-28
申请号：US13011295
申请日：2011-01-21
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。
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54.发明授权Peak suppressing and restoring method, transmitter, receiver, and peak suppressing and restoring system 有权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
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。
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公开(公告)号：US07991073B2
公开(公告)日：2011-08-02
申请号：US12639510
申请日：2009-12-16
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。
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公开(公告)号：US08520770B2
公开(公告)日：2013-08-27
申请号：US12404455
申请日：2009-03-16
IPC分类号： H04L25/49
CPC分类号： H04L27/2623
摘要： An amplitude suppressing apparatus includes a differential circuit that calculates a differential value of amplitude of an input signal at a point when the amplitude reaches a predetermined threshold. The amplitude suppressing apparatus also includes an amplitude suppressing circuit that suppresses the amplitude of the input signal on the basis of the differential value calculated by the differential circuit.
摘要翻译： 振幅抑制装置包括差分电路，该差动电路计算振幅达到预定阈值时的输入信号的振幅的微分值。 振幅抑制装置还包括基于由差分电路计算的差分值来抑制输入信号的幅度的幅度抑制电路。
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57.发明授权Power amplifying apparatus with bandwidth limitation processing on variable power supply 有权具有可变电源带宽限制处理的功率放大装置公开(公告)号：US08489037B2
公开(公告)日：2013-07-16
申请号：US12328950
申请日：2008-12-05
IPC分类号： H04B1/66
CPC分类号： H04L27/361 , H03F1/0211 , H03F3/24
摘要： A power amplifying apparatus has a bandwidth limitation process circuit to which an envelope signal included in a transmission signal is inputted, and which performs a bandwidth limitation process on the envelope signal, a variable power supply circuit for generating a power amplifier supply voltage based on a voltage control signal generated by the bandwidth limitation process circuit, and a power amplifier which is fed an input signal, and which is driven in accordance with the supply voltage from the variable power supply circuit.
摘要翻译： 功率放大装置具有带宽限制处理电路，输入发送信号中包含的包络信号，对包络信号进行带宽限制处理，可变电源电路基于 由带宽限制处理电路产生的电压控制信号，以及馈送输入信号并根据来自可变电源电路的电源电压驱动的功率放大器。
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公开(公告)号：US08064529B2
公开(公告)日：2011-11-22
申请号：US11878588
申请日：2007-07-25
CPC分类号： H04L27/2614 , H03F1/32 , H03F3/19 , H04B1/0475 , H04L27/2623
摘要： In a configuration where systems C and D having different reception quality requirements are present, a peak suppressor generates a replica of a signal from system C combined together with a signal from system D before peak suppression. Based on the replica, system specific peak suppressing units respectively perform peak suppression on signals of each system according to the respective reception quality requirements of each system. A combining unit combines the peak-suppressed signals of each system. Hence, peak suppression on signals from systems requiring different reception qualities is performed at an appropriate degree according to each system.
摘要翻译： 在存在具有不同接收质量要求的系统C和D的配置中，峰值抑制器在峰值抑制之前产生与系统D的信号组合的来自系统C的信号的副本。 基于复制品，系统特定的峰值抑制单元根据每个系统的各个接收质量要求分别对每个系统的信号进行峰值抑制。 组合单元组合每个系统的峰值抑制信号。 因此，根据每个系统，在适当的程度上执行需要不同接收质量的系统的信号的峰值抑制。
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公开(公告)号：US20090190647A1
公开(公告)日：2009-07-30
申请号：US12333576
申请日：2008-12-12
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。
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公开(公告)号：US08433262B2
公开(公告)日：2013-04-30
申请号：US12850998
申请日：2010-08-05
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。
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