公开(公告)号：US08648658B2

公开(公告)日：2014-02-11

申请号：US13129669

申请日：2009-11-16

Applicant: James Brice

Inventor： James Brice

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F2201/3209

Abstract: There is disclosed a method for generating pre-emphasis coefficients for a pre-emphasis stage of a non-linear distorting device, the method comprising the steps of: capturing, for a given time period, samples of an input signal and samples of an output signal; determining the direction of an error between the captured samples; adjusting the input signal in a direction to reduce the error to generate an estimate of the pre-distorted input signal; generating updated pre-distortion coefficients in dependence on the estimate of the pre-distorted input signal and generated pre-distortion coefficients for one or more previous time periods.

Abstract translation: 公开了一种用于产生用于非线性失真装置的预加重阶段的预加重系数的方法，所述方法包括以下步骤：在给定时间段内捕获输入信号和输出样本的样本 信号; 确定捕获的样本之​​间的误差的方向; 在一个方向上调整输入信号以减小误差以产生预失真输入信号的估计; 根据预失真输入信号的估计和产生一个或多个先前时间段的预失真系数产生更新的预失真系数。

公开(公告)号：US08692614B2

公开(公告)日：2014-04-08

申请号：US13422218

申请日：2012-03-16

Applicant: James Brice

Inventor： James Brice

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F1/0222 ,  H03F3/189 ,  H03F3/19 ,  H03F3/20 ,  H03F2200/102 ,  H03F2200/451 ,  H03F2201/3227

Abstract: There is described a method of controlling signal alignment in a power amplifier, comprising: receiving an input signal to be amplified; receiving a supply voltage for the power amplifier, the supply voltage being derived in dependence on the signal to be amplified; amplifying the input signal to produce an output signal; comparing the output signal with a plurality of distorted versions of the input signal, each distorted version of the input signal being associated with a different time delay value; and adjusting the timing of either the input signal or the supply voltage by an amount in dependence on a time delay value determined to be associated with a distorted version of the input signal which most closely matches the output signal.

Abstract translation: 描述了一种控制功率放大器中的信号对准的方法，包括：接收待放大的输入信号; 接收功率放大器的电源电压，根据要放大的信号导出电源电压; 放大输入信号以产生输出信号; 将输出信号与输入信号的多个失真版本进行比较，输入信号的每个失真版本与不同的时间延迟值相关联; 以及根据确定为与输出信号最匹配的输入信号的失真版本相关联的时间延迟值来调整输入信号或电源电压的定时。

公开(公告)号：US20120235741A1

公开(公告)日：2012-09-20

申请号：US13422218

申请日：2012-03-16

Applicant: James Brice

Inventor： James Brice

IPC: H03F1/26

CPC classification number: H03F1/3247 ,  H03F1/0222 ,  H03F3/189 ,  H03F3/19 ,  H03F3/20 ,  H03F2200/102 ,  H03F2200/451 ,  H03F2201/3227

Abstract: There is described a method of controlling signal alignment in a power amplifier, comprising: receiving an input signal to be amplified; receiving a supply voltage for the power amplifier, the supply voltage being derived in dependence on the signal to be amplified; amplifying the input signal to produce an output signal; comparing the output signal with a plurality of distorted versions of the input signal, each distorted version of the input signal being associated with a different time delay value; and adjusting the timing of either the input signal or the supply voltage by an amount in dependence on a time delay value determined to be associated with a distorted version of the input signal which most closely matches the output signal.

Abstract translation: 描述了一种控制功率放大器中的信号对准的方法，包括：接收待放大的输入信号; 接收功率放大器的电源电压，根据要放大的信号导出电源电压; 放大输入信号以产生输出信号; 将输出信号与输入信号的多个失真版本进行比较，输入信号的每个失真版本与不同的时间延迟值相关联; 以及根据确定为与输出信号最匹配的输入信号的失真版本相关联的时间延迟值来调整输入信号或电源电压的定时。

公开(公告)号：US20120154039A1

公开(公告)日：2012-06-21

申请号：US13129669

申请日：2009-11-16

Applicant: James Brice

Inventor： James Brice

IPC: H03F1/32

CPC classification number: H03F1/3247 ,  H03F2201/3209

Abstract: There is disclosed a method for generating pre-emphasis coefficients for a pre-emphasis stage of a non-linear distorting device, the method comprising the steps of: capturing, for a given time period, samples of an input signal and samples of an output signal; determining the direction of an error between the captured samples; adjusting the input signal in a direction to reduce the error to generate an estimate of the pre-distorted input signal; generating updated pre-distortion coefficients in dependence on the estimate of the pre-distorted input signal and generated pre-distortion coefficients for one or more previous time periods.

Abstract translation: 公开了一种用于产生用于非线性失真装置的预加重阶段的预加重系数的方法，所述方法包括以下步骤：在给定时间段内捕获输入信号和输出样本的样本 信号; 确定捕获的样本之​​间的误差的方向; 在一个方向上调整输入信号以减小误差以产生预失真输入信号的估计; 根据预失真输入信号的估计和产生一个或多个先前时间段的预失真系数产生更新的预失真系数。