公开(公告)号：US20050036650A1

公开(公告)日：2005-02-17

申请号：US10480779

申请日：2002-06-12

申请人： John Bishop ,  Antony Smithson ,  Steven Meade ,  Mark Cope

发明人： John Bishop ,  Antony Smithson ,  Steven Meade ,  Mark Cope

IPC分类号： H03F1/32 ,  G06K9/00

CPC分类号： H03F1/3294 ,  H03F1/3223 ,  H03F1/3247

摘要： The control scheme uses the input and output signals of an amplifier (10) to control a lineariser (24) operating on the amplifier (10). The input and output signals are sensed and used to develop assay signals that have ideal inter-relationships when the amplifier is operating as desired. The control scheme modifies the operation of the lineariser to account for any departures observed in the relationships.

摘要翻译： 控制方案使用放大器（10）的输入和输出信号来控制在放大器（10）上操作的线性化器（24）。 当放大器根据需要进行操作时，感测输入和输出信号并用于开发具有理想相互关系的测定信号。 控制方案修改了线性关系器的操作，以解释在关系中观察到的任何偏差。

公开(公告)号：US20050007191A1

公开(公告)日：2005-01-13

申请号：US10386291

申请日：2003-03-11

申请人： Peter Kenington ,  Jonathan Rogers ,  John Bishop ,  Antony Smithson

发明人： Peter Kenington ,  Jonathan Rogers ,  John Bishop ,  Antony Smithson

IPC分类号： H03F1/32 ,  H04B7/005 ,  H03G3/20

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F1/3294 ,  H03F2200/102 ,  H04W52/52

摘要： A method of controlling an amplifier, the method comprising a sampling step of using a sampler to obtain digital samples of both an output signal of said amplifier and a reference signal, a derivation step of obtaining from said samples values of a first parameter and associated values of a second parameter, an averaging step of averaging the first parameter values over ranges of the second parameter such that, for each range, an average of the first parameter is obtained by averaging the first parameter values whose associated second parameter values lie in the range, a generation step of generating a control signal for said amplifier from said averages, a suppression step of using said samples of said reference signal to inhibit the effect upon said control signal of errors in the operation of said sampler and a control step of applying the control signal to said amplifier to direct the operation of said amplifier. The invention also relates to apparatus involved in carrying out the method.

公开(公告)号：US20060033567A1

公开(公告)日：2006-02-16

申请号：US10514789

申请日：2003-05-22

申请人： Antony Smithson

发明人： Antony Smithson

IPC分类号： H03F1/26

CPC分类号： H03F1/3247 ,  H03F2201/3224

摘要： A digital predistorter comprises a module J for producing a counteracting signal Vm1 for combination with the input signal of a power amplifier to correct the output of the amplifier for distorting memory effects within the amplifier. The module J produces the contracting signal Vm1 by convolving (see FIG. 6) functions of the input signal with impulse response characteristics related to the memory effects being corrected. The counteracting signal Vm1 is produced by a function fm and parameters in that function are adjusted to minimise any residual distortion in the amplifier output.

摘要翻译： 数字预失真器包括用于与功率放大器的输入信号组合的用于产生反作用信号V m1的模块J，以校正放大器的输出以扭曲放大器内的存储器效应。 模块J通过对与正在校正的存储器效应相关的脉冲响应特性进行卷积（参见图6）的输入信号的功能来产生收缩信号V m1 。 抵消信号V m1是通过函数f m m产生的，并且该函数中的参数被调整以最小化放大器输出中的任何残余失真。

公开(公告)号：US20060091949A1

公开(公告)日：2006-05-04

申请号：US10515201

申请日：2003-05-22

申请人： Antony Smithson

发明人： Antony Smithson

IPC分类号： H03F1/26

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2201/3224

摘要： A digital predistorter comprises a module (J) for producing a counteracting signal Vm1 for combination with the input signal of a power amplifier to correct the output of the amplifier for distorting memory effects within the amplifier. The module (J) produces the counteracting signal Vm1 by convolving (see FIG. 6) non-linear functions of the input signal with impulse response characteristics related to the memory effects being corrected.

摘要翻译： 数字预失真器包括用于与功率放大器的输入信号组合的用于产生反作用信号V m1的模块（J），以校正放大器的输出以使放大器内的存储器效应失真。 模块（J）通过对输入信号的非线性函数进行卷积（参见图6））产生反作用信号V m1，该脉冲响应特性与正被校正的存储器效应相关。

公开(公告)号：US20050101267A1

公开(公告)日：2005-05-12

申请号：US10704336

申请日：2003-11-07

申请人： Antony Smithson

发明人： Antony Smithson

IPC分类号： H03C3/40 ,  H04B1/02 ,  H03C1/52 ,  H04L27/36

CPC分类号： H03C3/40

摘要： A frequency upconverter using mixers operating on one or more signals and inverted versions thereof and a subtractor, such as a balun, for subtractively combining the mixer outputs to produce an upconverted signal.

摘要翻译： 使用在一个或多个信号和其反相版本上操作的混频器的频率上变频器以及用于减法地组合混频器输出以产生上变频信号的减法器（例如平衡 - 不平衡转换器）。