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1. 发明授权

US06208841B1 Environmental simulator for a wireless communication device 有权
标题翻译：无线通信设备环境模拟器
公开(公告)号：US06208841B1
公开(公告)日：2001-03-27
申请号：US09305256
申请日：1999-05-03
申请人： Raymond C. Wallace , Paul J. Draxler , Upkar Dhaliwal
发明人： Raymond C. Wallace , Paul J. Draxler , Upkar Dhaliwal
IPC分类号： H04B140
CPC分类号： H04W24/00 , H04B17/0087
摘要： An environmental simulator for use in the testing of wireless devices comprises a base station simulator, a signal manipulator, a switch and an antenna array. The environmental simulator is configured to couple wireless signals to and from a device under test in order to test the performance of the device over a variety of real world operating conditions.
摘要翻译：用于无线设备测试的环境模拟器包括基站模拟器，信号操纵器，开关和天线阵列。环境模拟器被配置为将无线信号耦合到被测器件和从被测器件耦合，以便在各种现实世界的工作条件下测试器件的性能。

2. 发明申请

US20110103455A1 ADAPTIVE DIGITAL POST DISTORTION REDUCTION 失效
标题翻译：自适应数字失真减少
公开(公告)号：US20110103455A1
公开(公告)日：2011-05-05
申请号：US12609776
申请日：2009-10-30
申请人： Aracely W. Forrester , Roberto Rimini , Peter D. Heidmann , Joseph P. Burke , Paul J. Draxler
发明人： Aracely W. Forrester , Roberto Rimini , Peter D. Heidmann , Joseph P. Burke , Paul J. Draxler
IPC分类号： H04L27/01 , H04B1/10
CPC分类号： H03F1/32 , H03F2200/294 , H03F2200/336 , H03F2200/451 , H04L25/03006 , H04L27/2647 , H04L27/38
摘要： A method for adaptive digital post distortion reduction is described. An analog radio frequency (RF) signal is received. The frequency of the analog RF signal is downconverted using analog circuitry. The analog RF signal is converted to a digital signal using an analog to digital converter (ADC). Digital post distortion reduction is applied to the digital signal to reduce nonlinearities in the digital signal.
摘要翻译：描述了一种用于自适应数字后变形减少的方法。接收模拟射频（RF）信号。使用模拟电路对模拟RF信号的频率进行下变频。使用模数转换器（ADC）将模拟RF信号转换为数字信号。数字后失真减小被应用于数字信号以减少数字信号中的非线性。

3. 发明申请

US20100271123A1 ADAPTIVE DIGITAL PREDISTORTION OF COMPLEX MODULATED WAVEFORM USING LOCALIZED PEAK FEEDBACK FROM THE OUTPUT OF A POWER AMPLIFIER 审中-公开
标题翻译：使用功率放大器输出的本地化峰值反馈的复合调制波形的自适应数字预测
公开(公告)号：US20100271123A1
公开(公告)日：2010-10-28
申请号：US12430753
申请日：2009-04-27
申请人： Aracely W. Forrester , Philip D. Coan , Paul J. Draxler
发明人： Aracely W. Forrester , Philip D. Coan , Paul J. Draxler
IPC分类号： H03F1/26
CPC分类号： H03F3/189 , H03F1/26 , H03F1/3247 , H03F1/3294 , H03F3/24 , H03F2200/207 , H03F2200/321 , H03F2200/336 , H03F2200/435 , H03F2200/99 , H03F2201/3233 , H04L27/368
摘要： Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric as determined through a localized sampling window of the output signal; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.
摘要翻译：本发明的示例性实施例包括放大器和处理器，其使用系统的度量来适配放大器的输入 - 输出信号特性的基线或先前模型，包括峰值功率，峰值电压，平均功率，均方根（RMS）电压，放大器的输出信号的样本等。特别地，该系统包括放大器; 用于测量系统度量的设备; 处理器，用于基于通过输出信号的局部采样窗口确定的系统度量来产生放大器的输入 - 输出信号特性的当前模型; 以及预失真装置，用于基于本放大器模型预失真放大器的输入信号。

4. 发明申请

US20100033246A1 ADAPTIVE DIGITAL PREDISTORTION OF COMPLEX MODULATED WAVEFORM USING PEAK AND RMS VOLTAGE FEEDBACK FROM THE OUTPUT OF A POWER AMPLIFIER 有权
标题翻译：使用峰值和RMS电压反馈的功率放大器输出的复合调制波形的自适应数字预测
公开(公告)号：US20100033246A1
公开(公告)日：2010-02-11
申请号：US12189681
申请日：2008-08-11
申请人： Paul J. Draxler , Bruce A. Judson , Aracely W. Forrester
发明人： Paul J. Draxler , Bruce A. Judson , Aracely W. Forrester
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F2200/435
摘要： Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, or environmental metrics such as temperature, power supply voltage, signal frequency, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.
摘要翻译：本发明的示例性实施例包括放大器和处理器，其使用系统的度量来适配放大器的输入 - 输出信号特性的基线或先前模型，包括峰值功率，峰值电压，平均功率，均方根（RMS）电压，放大器的输出信号的采样或诸如温度，电源电压，信号频率等的环境度量。特别地，该系统包括放大器; 用于测量系统度量的设备; 处理器，用于基于所述系统度量来产生所述放大器的输入 - 输出信号特性的当前模型; 以及预失真装置，用于基于本放大器模型预失真放大器的输入信号。

5. 发明授权

US08964821B2 Shared feedback for adaptive transmitter pre-distortion 有权
标题翻译：自适应发射机预失真的共享反馈
公开(公告)号：US08964821B2
公开(公告)日：2015-02-24
申请号：US13364065
申请日：2012-02-01
申请人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
发明人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
IPC分类号： H04B1/38 , H04L5/16 , H04L27/36 , H03F1/32 , H03F3/195 , H03F3/24 , H03F3/68 , H03F3/72 , H04B7/08
CPC分类号： H04L27/368 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2201/3212 , H03F2203/7221 , H03F2203/7236 , H04B7/0825
摘要： A modem is described. The modem includes a transmitter. The transmitter includes a digital pre-distortion module and a power amplifier. The modem also includes one or more selected shared receivers. The one or more selected shared receivers generate a feedback signal for the digital pre-distortion module. The modem further includes a feedback switch. The feedback switch selectively couples the one or more selected shared receivers to an output of the transmitter.
摘要翻译：调制解调器被描述。调制解调器包括发射机。发射机包括数字预失真模块和功率放大器。调制解调器还包括一个或多个选择的共享接收器。一个或多个选择的共享接收器产生用于数字预失真模块的反馈信号。调制解调器还包括反馈开关。反馈开关将一个或多个选择的共享接收机选择性地耦合到发射机的输出。

6. 发明授权

US08384476B2 Adaptive digital predistortion of complex modulated waveform using peak and RMS voltage feedback from the output of a power amplifier 有权
标题翻译：使用来自功率放大器的输出的峰值和RMS电压反馈的复数调制波形的自适应数字预失真
公开(公告)号：US08384476B2
公开(公告)日：2013-02-26
申请号：US12189681
申请日：2008-08-11
申请人： Paul J. Draxler , Bruce A. Judson , Aracely W. Forrester
发明人： Paul J. Draxler , Bruce A. Judson , Aracely W. Forrester
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F2200/435
摘要： Exemplary embodiments of the invention includes an amplifier and a processor that adapts a baseline or previous model of the input-output signal characteristic of the amplifier using metrics of the system, including peak power, peak voltage, average power, root mean square (RMS) voltage, samples of the output signal of the amplifier, or environmental metrics such as temperature, power supply voltage, signal frequency, etc. In particular, the system comprises an amplifier; a device to measure a metric of the system; a processor to generate a present model of the input-output signal characteristic of the amplifier based on the system metric; and a predistortion device to predistort the input signal for the amplifier based on the present amplifier model.
摘要翻译：本发明的示例性实施例包括放大器和处理器，其使用系统的度量来适配放大器的输入 - 输出信号特性的基线或先前模型，包括峰值功率，峰值电压，平均功率，均方根（RMS）电压，放大器的输出信号的采样或诸如温度，电源电压，信号频率等的环境度量。特别地，该系统包括放大器; 用于测量系统度量的设备; 处理器，用于基于所述系统度量来产生所述放大器的输入 - 输出信号特性的当前模型; 以及预失真装置，用于基于本放大器模型预失真放大器的输入信号。

7. 发明授权

US06725430B2 Process for designing high frequency circuits in multiple domains 失效
标题翻译：多领域高频电路设计流程
公开(公告)号：US06725430B2
公开(公告)日：2004-04-20
申请号：US10011611
申请日：2001-11-05
申请人： Paul J. Draxler , William Woodall
发明人： Paul J. Draxler , William Woodall
IPC分类号： G06F1750
CPC分类号： G06F17/5063
摘要： A process of designing a high frequency circuit in multiple domains, such as prototype and production domains, is described. The process begins by obtaining one or more parameters for each domain, such as physical parameters defining, for each layer of the substrate, the layer and the material in the layer, or electrical parameters defining, for each layer, transmission media on or within the layer. Once the parameters for the first and second domains have been obtained, the process proceeds to deriving, responsive to one or more of these parameters, interchangeable implementations in the first and second domains of the one or more circuit elements.
摘要翻译：描述了在诸如原型和生产领域的多个领域中设计高频电路的过程。该过程通过为每个域获得一个或多个参数开始，例如为衬底的每个层定义层中的层和材料的物理参数，或为每个层定义传输介质的电参数，层。一旦已经获得了第一和第二域的参数，则处理进行到响应于这些参数中的一个或多个导出以导出一个或多个电路元件的第一和第二域中的可互换实现。

8. 发明授权

US08737526B2 Predistortion of complex modulated waveform 有权
标题翻译：复调制波形的预失真
公开(公告)号：US08737526B2
公开(公告)日：2014-05-27
申请号：US12827952
申请日：2010-06-30
申请人： Philip David Coan , Paul J. Draxler
发明人： Philip David Coan , Paul J. Draxler
IPC分类号： H04L25/49 , H04L25/03 , H04K1/02
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/3282 , H03F2200/336 , H03F2201/3212 , H03F2201/3233 , H04B1/0475 , H04B2001/0425 , H04L27/368
摘要： Exemplary embodiments of the invention include a transmitter system configured to predistort an input signal to generate a target output signal. An exemplary transmitter system includes a forward path including a predistortion device coupled with an amplifier, the forward path configured for predistorting an input signal to the predistortion device in response to a phase error compensation signal and an amplitude error compensation signal in order to generate a desired output signal for the output signal of the amplifier, and a feedback path including a processor configured for generating the phase error compensation signal and the amplitude error compensation signal based on a comparison of the input signal with phase and amplitude information of the output signal of the amplifier, wherein the phase and amplitude information of the amplifier are transmitted to the processor on a single path of the feedback path. Other methods and apparatuses are also presented herein.
摘要翻译：本发明的示例性实施例包括被配置为预失真输入信号以产生目标输出信号的发射机系统。示例性发射机系统包括包括与放大器耦合的预失真装置的前向路径，所述前向路径被配置为响应于相位误差补偿信号和幅度误差补偿信号将输入信号预失真到预失真装置，以便产生期望的输出信号，以及包括处理器的反馈路径，该处理器被配置为基于输入信号与输入信号的输出信号的相位和幅度信息的比较来产生相位误差补偿信号和幅度误差补偿信号放大器，其中放大器的相位和幅度信息在反馈路径的单个路径上被发送到处理器。本文还给出了其它方法和装置。

9. 发明申请

US20130094550A1 SHARED FEEDBACK FOR ADAPTIVE TRANSMITTER PRE-DISTORTION 有权
标题翻译：用于自适应发射机预失真的共享反馈
公开(公告)号：US20130094550A1
公开(公告)日：2013-04-18
申请号：US13364065
申请日：2012-02-01
申请人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
发明人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
IPC分类号： H04L25/49 , H04B1/38
CPC分类号： H04L27/368 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2201/3212 , H03F2203/7221 , H03F2203/7236 , H04B7/0825
摘要： A modem is described. The modem includes a transmitter. The transmitter includes a digital pre-distortion module and a power amplifier. The modem also includes one or more selected shared receivers. The one or more selected shared receivers generate a feedback signal for the digital pre-distortion module. The modem further includes a feedback switch. The feedback switch selectively couples the one or more selected shared receivers to an output of the transmitter.
摘要翻译：调制解调器被描述。调制解调器包括发射机。发射机包括数字预失真模块和功率放大器。调制解调器还包括一个或多个选择的共享接收器。一个或多个选择的共享接收器产生用于数字预失真模块的反馈信号。调制解调器还包括反馈开关。反馈开关将一个或多个选择的共享接收机选择性地耦合到发射机的输出。

10. 发明申请

US20120002752A1 PREDISTORTION OF COMPLEX MODULATED WAVEFORM 有权
标题翻译：复合调制波形的预测
公开(公告)号：US20120002752A1
公开(公告)日：2012-01-05
申请号：US12827952
申请日：2010-06-30
申请人： Philip David Coan , Paul J. Draxler
发明人： Philip David Coan , Paul J. Draxler
IPC分类号： H04L25/03 , H04B1/10 , H04B1/04
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/3282 , H03F2200/336 , H03F2201/3212 , H03F2201/3233 , H04B1/0475 , H04B2001/0425 , H04L27/368
摘要： Exemplary embodiments of the invention include a transmitter system configured to predistort an input signal to generate a target output signal. An exemplary transmitter system includes a forward path including a predistortion device coupled with an amplifier, the forward path configured for predistorting an input signal to the predistortion device in response to a phase error compensation signal and an amplitude error compensation signal in order to generate a desired output signal for the output signal of the amplifier, and a feedback path including a processor configured for generating the phase error compensation signal and the amplitude error compensation signal based on a comparison of the input signal with phase and amplitude information of the output signal of the amplifier, wherein the phase and amplitude information of the amplifier are transmitted to the processor on a single path of the feedback path. Other methods and apparatuses are also presented herein.
摘要翻译：本发明的示例性实施例包括被配置为预失真输入信号以产生目标输出信号的发射机系统。示例性发射机系统包括包括与放大器耦合的预失真装置的前向路径，所述前向路径被配置为响应于相位误差补偿信号和幅度误差补偿信号将输入信号预失真到预失真装置，以便产生期望的输出信号，以及包括处理器的反馈路径，该处理器被配置为基于输入信号与输入信号的输出信号的相位和幅度信息的比较来产生相位误差补偿信号和幅度误差补偿信号放大器，其中放大器的相位和幅度信息在反馈路径的单个路径上被发送到处理器。本文还给出了其它方法和装置。

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