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61. 发明申请

US20070188225A1 Distortion compensating apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US20070188225A1
公开(公告)日：2007-08-16
申请号：US11437188
申请日：2006-05-19
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2200/465 , H03F2201/3227 , H03F2201/3233
摘要： The distortion compensating apparatus, which adaptively updates a distortion compensation coefficient for an amplifier based on a difference between input and output signals of the amplifier, comprises: a distortion amount detector which detects the amount of distortion of an output signal of the amplifier; a parameter holder which holds a parameter having been set therein; a parameter corrector which corrects the parameter in such a manner that the distortion amount detected by the detector is improved; a power monitor which monitors output power of the amplifier or a factor of variation in the power; and a controller which halts, if a monitoring result by the power monitor is smaller than a specified threshold value, the correction of the parameter. This arrangement makes it possible to accurately set the parameter relating to difference detection which is a factor of updating of distortion compensation coefficients of the distortion compensating apparatus.
摘要翻译：基于放大器的输入和输出信号之间的差异自适应地更新放大器的失真补偿系数的失真补偿装置包括：失真量检测器，其检测放大器的输出信号的失真量; 参数保持器，其保持已设置的参数; 参数校正器，其以使检测器检测到的失真量提高的方式校正参数; 监视放大器的输出功率或电源变化的功率监视器; 以及控制器，如果功率监视器的监视结果小于指定的阈值，则停止参数的校正。这种布置使得可以精确地设置与作为失真补偿装置的失真补偿系数的更新的因素的差分检测相关的参数。

62. 发明申请

US20050111575A1 Amplifier linearization using non-linear predistortion 失效
标题翻译：使用非线性预失真的放大器线性化
公开(公告)号：US20050111575A1
公开(公告)日：2005-05-26
申请号：US10718688
申请日：2003-11-24
申请人： Ilan Taler , Dan Wolberg , Ran Sharon
发明人： Ilan Taler , Dan Wolberg , Ran Sharon
IPC分类号： H03F20060101 , H03F1/32 , H04K1/02
CPC分类号： H03F1/32 , H03F1/3247 , H03F1/3276 , H03F2201/3227
摘要： Apparatus for amplifying an input signal having an input signal power includes a power amplifier, which is adapted to amplify an intermediate signal so as to generate an output signal, and which is characterized by a non-linearity. A non-linear filter is coupled to decompose the input signal into a series of input signal components, each such component proportional to a product of the input signal by a respective integer power of the input signal power, and is adapted to filter the signal components responsively to the non-linearity so as to generate the intermediate signal for input to the power amplifier.
摘要翻译：用于放大具有输入信号功率的输入信号的装置包括功率放大器，其适于放大中间信号以产生输出信号，其特征在于非线性。耦合非线性滤波器以将输入信号分解成一系列输入信号分量，每个这样的分量与输入信号乘以输入信号功率的相应整数倍的乘积成比例，并且适于对信号分量进行滤波响应于非线性，以产生输入到功率放大器的中间信号。

63. 发明申请

US20050026574A1 Pre-distortion cross-cancellation for linearizing power amplifiers 失效
标题翻译：用于线性化功率放大器的预失真交叉消除
公开(公告)号：US20050026574A1
公开(公告)日：2005-02-03
申请号：US10628263
申请日：2003-07-28
申请人： Josef Ocenasek , James Giacobazzi
发明人： Josef Ocenasek , James Giacobazzi
IPC分类号： H03F1/32 , H04B1/04 , H04B1/00 , H04B1/06 , H04B7/00
CPC分类号： H04B1/0483 , H03F1/3247 , H03F1/3252 , H03F2201/3227 , H04B1/0475
摘要： In an amplifier system having two or more different amplifier sub-systems, the input signal to at least one of the amplifier sub-systems is pre-distorted based on the combined output signal from the two or more amplifier sub-systems. In one embodiment, each other amplifier sub-system pre-distorts its input signal based on only its own output signal. In one operational scenario, during initial operations, each amplifier sub-system separately pre-distorts its input signal based on only its own output signal. After pre-distortion has settled, one of the amplifier sub-systems is switched to pre-distort its input signal based on the combined output signal, while the other amplifier sub-systems continue to pre-distort their input single based on only their own output signals.
摘要翻译：在具有两个或多个不同放大器子系统的放大器系统中，至少一个放大器子系统的输入信号是基于来自两个或更多个放大器子系统的组合输出信号而被预失真的。在一个实施例中，每个其他放大器子系统仅基于其自己的输出信号来预失真其输入信号。在一个操作场景中，在初始操作期间，每个放大器子系统仅基于其自己的输出信号单独地预失真其输入信号。在预失真已经稳定之后，其中一个放大器子系统被切换为基于组合的输出信号对其输入信号进行预失真，而另一个放大器子系统仅基于自己的输入单元继续预失真其输入单输出信号。

64. 发明授权

US4905086A Television transmitter employing klystron with nonlinearity correction circuit 失效
标题翻译：电视发射机采用速调管与非线性校正电路
公开(公告)号：US4905086A
公开(公告)日：1990-02-27
申请号：US278185
申请日：1988-11-30
申请人： Noboru Tahara
发明人： Noboru Tahara
IPC分类号： H03F1/32 , H03F3/56 , H03G3/20 , H04N5/38
CPC分类号： H03G3/22 , H03F1/3247 , H03F3/56 , H04N5/38 , H03F2201/3227
摘要： A television transmitter includes a klystron power amplifier, a non-linearity pre-correction circuit in a stage preceding the klystron power amplifier, a non-linearity detection circuit for detecting the non-linearity of the output of the klystron power amplifier, a first level controlling circuit for controlling the level of the output of the non-linearity pre-correction circuit in response to the output of the non-linearity detection circuit, a hum frequency component detection circuit for detecting a hum frequency component of the output of the klystron power amplifier and a second level controlling circuit for controlling the level of either the input or the output of the non-linearity pre-correction circuit in response to the detected hum frequency component. The first and second level controlling level circuits are preferably variable attenuators. Preferably, the hum component detection circuit is an AGC circuit, which preferably detects the pedestal level in the output of the power amplifier, and then applies the detected level to a bandpass filter which passes a component of substantially 50 to 60 Hz contained in the pedestal level. A comparator compares the output of the bandpass filter against a reference level and generates an error signal, which is employed to control the second variable attenuator, which is either at the input or the output of the pre-correction circuit.
摘要翻译：电视发射机包括速调管功率放大器，在速调管功率放大器之前的阶段中的非线性预校正电路，用于检测速调管功率放大器的输出的非线性的非线性检测电路，第一级控制电路，用于响应于非线性检测电路的输出来控制非线性预校正电路的输出电平;哼声频率分量检测电路，用于检测速调管功率输出的嗡嗡声频率分量放大器和第二电平控制电路，用于响应于检测到的嗡嗡声频率分量来控制非线性预校正电路的输入或输出的电平。第一和第二电平控制电平电路优选地是可变衰减器。优选地，哼声分量检测电路是AGC电路，其优选地检测功率放大器的输出中的基座电平，然后将检测到的电平施加到带通滤波器，该带通滤波器通过包含在基座中的基本上为50至60Hz的分量水平。比较器将带通滤波器的输出与参考电平进行比较，并产生误差信号，该误差信号用于控制第二可变衰减器，该第二可变衰减器处于预校正电路的输入端或输出端。

65. 发明专利

TWI560998B 預失真方法、預失真裝置以及機器可讀媒體有权
简体标题：预失真方法、预失真设备以及机器可读媒体
公开(公告)号：TWI560998B
公开(公告)日：2016-12-01
申请号：TW102124983
申请日：2013-07-11
申请人：瑞昱半導體股份有限公司 , REALTEK SEMICONDUCTOR CORP.
发明人：張元碩 , CHANG, YUAN SHUO
IPC分类号： H03F1/32 , H04L27/26
CPC分类号： H03F1/3258 , H03F1/26 , H03F1/3241 , H03F1/3247 , H03F3/195 , H03F3/24 , H03F2201/3212 , H03F2201/3224 , H03F2201/3227 , H03F2201/3233

66. 发明申请

WO2016137802A1 VECTOR SIGNAL ALIGNMENT FOR DIGITAL VECTOR PROCESSIGN USING VECTOR TRANSFORMS 审中-公开
标题翻译：使用矢量变换的数字矢量处理的矢量信号对齐
公开(公告)号：WO2016137802A1
公开(公告)日：2016-09-01
申请号：PCT/US2016/018369
申请日：2016-02-18
申请人： ALCATEL LUCENT
发明人： REDDY, Ajit
IPC分类号： H03F1/32 , H04B1/04
CPC分类号： G06F17/14 , H03F1/3247 , H03F3/24 , H03F2201/3227 , H04B1/0475 , H04B2001/0425 , H04L25/49
摘要： A processor receives a first vector signal and a second vector signal from a circuit in response to the circuit receiving the first vector signal. The processor transforms the second vector signal from a time domain to a transform domain. The processor rotates the transformed second vector signal by a phase that is proportional to a time delay between the first and second vector signals to time-align the second vector signal to the first vector signal.
摘要翻译：处理器响应于电路接收第一矢量信号而从电路接收第一矢量信号和第二矢量信号。处理器将第二矢量信号从时域转换为变换域。处理器使经变换的第二矢量信号旋转与第一和第二矢量信号之间的时间延迟成比例的相位，以将第二矢量信号与第一矢量信号时间对准。

67. 发明申请

WO2014021932A1 BROADBAND HIGH EFFICIENCY AMPLIFIER SYSTEM AND A METHOD OF CONSTRUCTING HIGH POWER AMPLITUDE MODULATED RF SIGNAL 审中-公开
标题翻译：宽带高效放大器系统和构建高功率放大器调制RF信号的方法
公开(公告)号：WO2014021932A1
公开(公告)日：2014-02-06
申请号：PCT/US2013/023963
申请日：2013-01-31
申请人： HBC Solutions, INC.
发明人： BORODULIN, Dmitri , CABRERA, George
IPC分类号： H03F3/68
CPC分类号： H03F1/0205 , H03F1/3247 , H03F1/56 , H03F3/189 , H03F3/19 , H03F3/211 , H03F3/245 , H03F3/602 , H03F2200/222 , H03F2200/387 , H03F2200/451 , H03F2201/3212 , H03F2201/3227 , H03F2203/21106 , H03F2203/21142
摘要： A broadband high efficiency (RF) radio frequency amplifier architecture is disclosed. Systems and methods are provided for generating an amplified radio frequency (RF) signal representing a baseband input signal. First, second, and third signal paths are configured to amplify first, second, and third intermediate signals to provide respective amplified signals. A signal combiner assembly is configured to combine the amplified signals to produce the compound amplified RF signal. The signals are combined such that a first amplified signal modulates a load impedance at respective outputs of an active device associated with the plurality of amplifiers in the second signal path, and one of the first amplified signal, the second amplified signal, and a sum of the first and second amplified signals modulates a load impedance of an active device associated with the plurality of amplifiers in the third signal path.
摘要翻译：公开了一种宽带高效（RF）射频放大器架构。提供了用于产生表示基带输入信号的放大射频（RF）信号的系统和方法。第一，第二和第三信号路径被配置为放大第一，第二和第三中间信号以提供相应的放大信号。信号组合器组件被配置为组合放大的信号以产生化合物放大的RF信号。信号被组合，使得第一放大信号调制与第二信号路径中与多个放大器相关联的有源器件的相应输出处的负载阻抗，以及第一放大信号，第二放大信号之和和第一和第二放大信号调制与第三信号路径中的多个放大器相关联的有源器件的负载阻抗。

68. 发明申请

WO2013136226A1 ARCHITECTURE AND THE TRAINING METHOD OF A PA DPD SYSTEM WITH SPACE MAPPING APPLIED IN THE PREDISTORTER 审中-公开
标题翻译：建筑与PA DPD系统的训练方法与空间映射应用于预测器
公开(公告)号：WO2013136226A1
公开(公告)日：2013-09-19
申请号：PCT/IB2013/051754
申请日：2013-03-05
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BAI, Chunlong
IPC分类号： H03F1/32 , H04L27/36
CPC分类号： H03F1/3247 , H03F2201/3227 , H04L27/368
摘要： Systems and methods are disclosed for compensating for non-linearity of a power amplifier using space mapping based predistortion. In one embodiment, a transmitter includes a power amplifier that amplifies a power amplifier input signal, a predistorter that effects predistortion of the power amplifier input signal to compensate for a non-linear characteristic of the power amplifier using a space mapping based model of an inverse of the non-linear characteristic of the power amplifier, and an adaptation sub-system that adaptively configures the space mapping based model of the non-linear characteristic of the power amplifier. In one embodiment, the adaptation sub-system adaptively configures a space mapping based model of the non-linear characteristic of the power amplifier and adaptively configures the space mapping based model of the inverse of the non-linear characteristic of the power amplifier based on the space mapping based model of the non-linear characteristic of the power amplifier.
摘要翻译：公开了用于补偿使用基于空间映射的预失真的功率放大器的非线性度的系统和方法。在一个实施例中，发射机包括放大功率放大器输入信号的功率放大器，预失真器，其利用功率放大器输入信号的预失真来补偿功率放大器的非线性特性，使用基于空间映射的反相模型功率放大器的非线性特性的自适应子系统，以及自适应地配置基于功率放大器的非线性特性的基于空间映射的模型的自适应子系统。在一个实施例中，自适应子系统自适应地配置基于功率放大器的非线性特性的基于空间映射的模型，并且基于功率放大器的非线性特性的逆的自相应自适应地配置基于空间映射的模型基于空间映射的功率放大器非线性特性模型。

69. 发明申请

WO2013030815A1 AMPLIFIER LINEARIZATION USING PREDISTORTION 审中-公开
标题翻译：使用预测的放大器线性化
公开(公告)号：WO2013030815A1
公开(公告)日：2013-03-07
申请号：PCT/IL2011/000697
申请日：2011-08-30
申请人： DSP GROUP LTD. , FELDMAN, Ariel , SUISSA, Udi
发明人： FELDMAN, Ariel , SUISSA, Udi
IPC分类号： H03F1/32
CPC分类号： H03F1/3247 , H03F1/3241 , H03F2201/3227
摘要： A device and method of predistortion linearization that account for both EVM and spectral mask are disclosed. The device and method are based on transforming the predistorter optimization problem from the time domain to the frequency domain, and weighting the equations according to one or more desired objectives. One objective focuses on abiding by the spectral mask, whereas another objective focuses on improving the EVM.
摘要翻译：公开了一种考虑到EVM和光谱掩模两者的预失真线性化的装置和方法。该装置和方法基于将预失真器优化问题从时域转换到频域，并且根据一个或多个期望目标对方程进行加权。一个目标着重于遵守光谱掩模，而另一个目标着重于改进EVM。

70. 发明申请

WO2011131122A1 IMPROVED CAPTURE BUFFER OF DIGITAL PREDISTORTION SYSTEMS 审中-公开
标题翻译：数字预测系统的改进捕获缓冲器
公开(公告)号：WO2011131122A1
公开(公告)日：2011-10-27
申请号：PCT/CN2011/073027
申请日：2011-04-19
申请人： ZTE WISTRON TELECOM AB , ZTE CORPORATION , PEROULAS, James , YOU, Aimin , LIAO, Qun , YAN, Xiaowei , MO, Yiqun , ZENG, Zhaoquan
发明人： PEROULAS, James , YOU, Aimin , LIAO, Qun , YAN, Xiaowei , MO, Yiqun , ZENG, Zhaoquan
IPC分类号： H03F1/32
CPC分类号： H03F1/3247 , H03F3/195 , H03F3/24 , H03F2201/3227 , H04L27/367
摘要： An improved DPD system includes a predistortion module comprising at least one predistortion function. The predistortion module is configured to receive and subsequently process a baseband signal. The system also includes a power amplifier configured to receive the processed baseband signal from the predistortion module. The system further includes a model calculator configured to program priorities for predistortion functions so that the processed baseband signal transmitted from the predistortion module corresponds to the transmission power of the power amplifier. The model calculator is further configured send a trigger signal to indicate when data capture from the power amplifier should begin so as to update the predistortion functions. A trigger module in the system is configured to receive the trigger signal and to initiate data capture from the power amplifier upon receipt of the trigger signal.
摘要翻译：改进的DPD系统包括包含至少一个预失真功能的预失真模块。预失真模块被配置为接收并随后处理基带信号。该系统还包括功率放大器，被配置为从预失真模块接收经处理的基带信号。该系统还包括：模型计算器，被配置为对预失真函数编制优先级，使得从预失真模块发送的经处理的基带信号对应于功率放大器的发送功率。进一步配置模型计算器发送触发信号以指示何时开始从功率放大器获取数据以便更新预失真功能。系统中的触发模块被配置为接收触发信号并且在接收到触发信号时从功率放大器启动数据捕获。

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