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1. 发明授权

US06801082B2 Power amplifier circuit and method using bandlimited signal component estimates 有权
标题翻译：功率放大器电路及方法采用带限信号分量估计
公开(公告)号：US06801082B2
公开(公告)日：2004-10-05
申请号：US10334843
申请日：2002-12-31
申请人： Pallab Midya , John Grosspietsch , Michael Washington
发明人： Pallab Midya , John Grosspietsch , Michael Washington
IPC分类号： H03F338
CPC分类号： H03F3/211 , H03F1/0222 , H03F1/0277 , H03G3/004
摘要： A power amplifier circuit for receiving a variable envelope input signal and for producing an amplified output signal is provided. The power amplifier circuit includes an envelope approximation circuit, an envelope amplifier circuit, a phasor approximation circuit, a quadrature modulation circuit, and a power amplifier. The envelope approximation circuit receives the variable envelope input signal and produces a bandlimited estimated envelope signal, corresponding to the amplitude of the variable envelope input signal. The bandlimited estimated envelope signal is then amplified by an envelope amplifier circuit. The amplified envelope signal is then coupled to the supply input of the power amplifer. The phasor approximation circuit receives the variable envelope input signal and produces a bandlimited estimated phasor signal. The quadrature modulation circuit receives the estimated phase signal and produces a modulated phase signal. The modulated phase signal is then coupled to the signal input of the power amplifier. The power amplifier then produces an amplified output signal.
摘要翻译：提供一种用于接收可变包络输入信号并产生放大的输出信号的功率放大器电路。功率放大器电路包括包络近似电路，包络放大器电路，相量近似电路，正交调制电路和功率放大器。包络近似电路接收可变包络输入信号，并产生对应于可变包络输入信号的幅度的带限估计包络信号。然后，带通估计包络信号由包络放大器电路放大。放大的包络信号然后被耦合到功率放大器的电源输入端。相量近似电路接收可变包络输入信号并产生带限估计的相量信号。正交调制电路接收估计的相位信号并产生调制相位信号。然后将调制相位信号耦合到功率放大器的信号输入端。然后，功率放大器产生放大的输出信号。

2. 发明授权

US6141541A Method, device, phone and base station for providing envelope-following for variable envelope radio frequency signals 失效
标题翻译：方法，设备，电话和基站，为可变包络射频信号提供包络跟踪
公开(公告)号：US6141541A
公开(公告)日：2000-10-31
申请号：US1762
申请日：1997-12-31
申请人： Pallab Midya , Lawrence E. Connell , Steven F. Gillig , John Grosspietsch , Andrew Merritt Khan , George Francis Opas , Robert Louis Palandech
发明人： Pallab Midya , Lawrence E. Connell , Steven F. Gillig , John Grosspietsch , Andrew Merritt Khan , George Francis Opas , Robert Louis Palandech
IPC分类号： H03F1/02 , H04B7/005 , H04W52/52 , H04B1/02
CPC分类号： H04W52/52 , H03F1/0227 , H03F2200/102 , Y02B60/50
摘要： A method (200) and device (100) provide an efficient linear power amplifier that generates a variable-envelope radio frequency RF signal. The method includes the steps of: A) using an efficient envelope-following unit to output a supply voltage in accordance with a variable envelope of an input baseband signal, wherein using the efficient envelope-following unit includes: 1) using a bandwidth-limiting mapping unit to determine a reference signal based on the baseband signal; and 2) using an envelope-tracking power converter to output a supply voltage, responsive to the reference signal, to the linear RF power amplifier; B) providing an RF input signal with amplitude and phase information to a linear RF power amplifier; and C) using the linear RF power amplifier to output a power-efficient amplified variable-envelope RF signal with substantially a same amplitude and phase information as the RF input signal.
摘要翻译：一种方法（200）和装置（100）提供一种生成可变包络射频RF信号的有效线性功率放大器。该方法包括以下步骤：A）使用有效的包络跟随单元根据输入基带信号的可变包络输出电源电压，其中使用有效包络跟随单元包括：1）使用带宽限制映射单元，以基于所述基带信号确定参考信号; 以及2）使用包络跟踪功率转换器将响应于所述参考信号的电源电压输出到所述线性RF功率放大器; B）向线性RF功率放大器提供具有幅度和相位信息的RF输入信号; 和C）使用线性RF功率放大器输出具有与RF输入信号基本相同的幅度和相位信息的功率有效的放大的可变包络RF信号。

3. 发明授权

US6138042A Method, device, phone, and base station for providing an efficient tracking power converter for variable signals 失效
标题翻译：方法，设备，电话和基站，用于为可变信号提供有效的跟踪功率转换器
公开(公告)号：US6138042A
公开(公告)日：2000-10-24
申请号：US001625
申请日：1997-12-31
申请人： Pallab Midya , Lawrence E. Connell , John Grosspietsch , Ronald Gene Myers
发明人： Pallab Midya , Lawrence E. Connell , John Grosspietsch , Ronald Gene Myers
IPC分类号： H03F1/02 , H04Q7/23 , G05F1/70 , H02M7/155
CPC分类号： H03F1/0227 , H03F2200/102
摘要： A method (300, 400), device (100, 200), phone (200) and base station (200) provide an efficient tracking power converter for variable signals. The tracking power converter includes a feedforward feedback control unit that is coupled to receive a reference signal and to receive at least one feedback signal and is used for determining an optimal control signal in accordance with a predetermined scheme, a pulse width modulation unit that is coupled to the feedforward feedback control unit and is used for modifying a duty ratio to provide a switching signal, and a power converter that is coupled to the pulse width modulation unit and to a power source and is used for providing the dynamic variable output signal.
摘要翻译：方法（300,400），设备（100,200），电话（200）和基站（200）为可变信号提供有效的跟踪功率转换器。跟踪功率转换器包括前馈反馈控制单元，其耦合以接收参考信号并且接收至少一个反馈信号，并且用于根据预定方案确定最佳控制信号;脉冲宽度调制单元，被耦合并且用于修改占空比以提供开关信号;以及功率转换器，其耦合到脉宽调制单元和电源，并用于提供动态可变输出信号。

4. 发明授权

US07227487B1 Digital saturation handling in integral noise shaping of pulse width modulation 有权
标题翻译：数字饱和处理在脉冲宽度调制的积分噪声整形中
公开(公告)号：US07227487B1
公开(公告)日：2007-06-05
申请号：US11273286
申请日：2005-11-14
申请人： Pallab Midya , William J. Roeckner , John Grosspietsch , Anthony R. Schooler
发明人： Pallab Midya , William J. Roeckner , John Grosspietsch , Anthony R. Schooler
IPC分类号： H03M1/82
CPC分类号： H03M3/366 , H03M3/432 , H03M3/452
摘要： An audio amplifier includes a digital signal processor (DSP) that contains a noise shaping quantizer having an integrating error amplifier. The integrating error amplifier contains integrators connected in a feedback loop, a summer supplied with an output of each of the integrators, and a saturation function module producing a saturation function. A multiplier is disposed between each pair of adjacent integrators. The multiplier receives a signal from one of the adjacent integrators and the saturation function and supplies a signal to the other of the adjacent integrators. The saturation function decreases the effect of all of the integrators except an integrator to which an input signal to the integrating amplifier is supplied using an input signal to and/or an output signal from the noise shaping quantizer. This permits the duty ratio of the output signal from the noise shaping quantizer to extend from 0% to 100%.
摘要翻译：音频放大器包括包含具有积分误差放大器的噪声整形量化器的数字信号处理器（DSP）。积分误差放大器包含连接在反馈回路中的积分器，与每个积分器的输出相加的夏季以及产生饱和功能的饱和功能模块。在每对相邻的积分器之间设置乘法器。乘法器接收来自相邻积分器之一的信号和饱和度函数，并向相邻的积分器中的另一个提供信号。饱和功能降低了除了积分器之外的所有积分器的影响，使用来自噪声整形量化器的输入信号和/或来自噪声整形量化器的输出信号向积分放大器提供输入信号。这允许来自噪声整形量化器的输出信号的占空比从0％延伸到100％。

5. 发明申请

US20070109165A1 DIGITAL SATURATION HANDLING IN INTEGRAL NOISE SHAPING OF PULSE WIDTH MODULATION 有权
标题翻译：脉冲宽度调制的整体噪声形状数字饱和处理
公开(公告)号：US20070109165A1
公开(公告)日：2007-05-17
申请号：US11273286
申请日：2005-11-14
申请人： Pallab Midya , William Roeckner , John Grosspietsch , Anthony Schooler
发明人： Pallab Midya , William Roeckner , John Grosspietsch , Anthony Schooler
IPC分类号： H03M1/66
CPC分类号： H03M3/366 , H03M3/432 , H03M3/452
摘要： An audio amplifier includes a digital signal processor (DSP) that contains a noise shaping quantizer having an integrating error amplifier. The integrating error amplifier contains integrators connected in a feedback loop, a summer supplied with an output of each of the integrators, and a saturation function module producing a saturation function. A multiplier is disposed between each pair of adjacent integrators. The multiplier receives a signal from one of the adjacent integrators and the saturation function and supplies a signal to the other of the adjacent integrators. The saturation function decreases the effect of all of the integrators except an integrator to which an input signal to the integrating amplifier is supplied using an input signal to and/or an output signal from the noise shaping quantizer. This permits the duty ratio of the output signal from the noise shaping quantizer to extend from 0% to 100%.
摘要翻译：音频放大器包括包含具有积分误差放大器的噪声整形量化器的数字信号处理器（DSP）。积分误差放大器包含连接在反馈回路中的积分器，与每个积分器的输出相加的夏季以及产生饱和功能的饱和功能模块。在每对相邻的积分器之间设置乘法器。乘法器接收来自相邻积分器之一的信号和饱和度函数，并向相邻的积分器中的另一个提供信号。饱和功能降低了除了积分器之外的所有积分器的影响，使用来自噪声整形量化器的输入信号和/或来自噪声整形量化器的输出信号向积分放大器提供输入信号。这允许来自噪声整形量化器的输出信号的占空比从0％延伸到100％。

6. 发明授权

US06838931B2 Power amplifier circuit and method using bandlimited signal component estimates 有权
标题翻译：功率放大器电路及方法采用带限信号分量估计
公开(公告)号：US06838931B2
公开(公告)日：2005-01-04
申请号：US10844123
申请日：2004-05-12
申请人： Pallab Midya , John Grosspietsch , Michael Washington
发明人： Pallab Midya , John Grosspietsch , Michael Washington
IPC分类号： H03F1/02 , H03F3/21 , H03G3/00 , H03F3/38
CPC分类号： H03F3/211 , H03F1/0222 , H03F1/0277 , H03G3/004
摘要： A power amplifier circuit for receiving a variable envelope input signal and for producing an amplified output signal is provided. The power amplifier circuit includes an envelope approximation circuit, an envelope amplifier circuit, a phasor approximation circuit, a quadrature modulation circuit, and a power amplifier. The envelope approximation circuit receives the variable envelope input signal and produces a bandlimited estimated envelope signal, corresponding to the amplitude of the variable envelope input signal. The bandlimited estimated envelope signal is then amplified by an envelope amplifier circuit. The amplified envelope signal is then coupled to the supply input of the power amplifier. The phasor approximation circuit receives the variable envelope input signal and produces a bandlimited estimated phasor signal. The quadrature modulation circuit receives the estimated phase signal and produces a modulated phase signal. The modulated phase signal is then coupled to the signal input of the power amplifier. The power amplifier then produces an amplified output signal.
摘要翻译：提供一种用于接收可变包络输入信号并产生放大的输出信号的功率放大器电路。功率放大器电路包括包络近似电路，包络放大器电路，相量近似电路，正交调制电路和功率放大器。包络近似电路接收可变包络输入信号，并产生对应于可变包络输入信号的幅度的带限估计包络信号。然后，带通估计包络信号由包络放大器电路放大。放大的包络信号然后被耦合到功率放大器的电源输入端。相量近似电路接收可变包络输入信号并产生带限估计的相量信号。正交调制电路接收估计的相位信号并产生调制相位信号。然后将调制相位信号耦合到功率放大器的信号输入端。然后，功率放大器产生放大的输出信号。

7. 发明授权

US06822523B2 Power modulator and method of operating a power modulator 有权
公开(公告)号：US06822523B2
公开(公告)日：2004-11-23
申请号：US10230679
申请日：2002-08-28
申请人： John Grosspietsch , Lawrence Cygan
发明人： John Grosspietsch , Lawrence Cygan
IPC分类号： H03C100
CPC分类号： H03F1/0227 , H03C5/00
摘要： To address the need for a power modulator that can efficiently operate within a wideband, high-speed communication system, a method and apparatus for power modulation is provided herein. In accordance with the preferred embodiment of the present invention an envelope reference signal is filtered in such a way that the bandwidth is reduced while keeping the instantaneous level of the filtered signal is greater than the unfiltered envelope level. Because the bandwidth of the envelope signal is reduced, efficient operation of the switching modulator can be achieved within wideband, high-speed communication systems.

8. 发明申请

US20050025187A1 Signal processing of transmission packets 审中-公开
标题翻译：传输数据包的信号处理
公开(公告)号：US20050025187A1
公开(公告)日：2005-02-03
申请号：US10631257
申请日：2003-07-31
申请人： Yun Li , Henry Beadle , John Grosspietsch , Xiaojing Huang , Son Nguyen
发明人： Yun Li , Henry Beadle , John Grosspietsch , Xiaojing Huang , Son Nguyen
IPC分类号： H04J3/00 , H04L12/56
CPC分类号： H04L49/3009
摘要： A communications unit (2) and method (50) for providing a transmission packet (30), the transmission packet (30) comprising a data independent field (32) and a payload field (33). The unit (2) and method (50) performs processing digital data (54) to provide a modulated digital payload. The method then performs a step (55) of obtaining pre-defined modulated transmission protocol bits stored in a memory. Then a combining step (56) provides for combining the modulated digital payload and the predefined modulated transmission protocol bits to provide the transmission packet (30), wherein the modulated digital payload is in the payload field (33) and the modulated transmission protocol bits are in the data independent field (32).
摘要翻译：一种用于提供传输分组（30）的通信单元（2）和方法（50），所述传输分组（30）包括数据无关字段（32）和有效载荷字段（33）。单元（2）和方法（50）执行处理数字数据（54）以提供经调制的数字有效载荷。该方法然后执行获得存储在存储器中的预定义的调制传输协议位的步骤（55）。然后，组合步骤（56）提供组合调制的数字有效载荷和预定义的调制的传输协议比特以提供传输分组（30），其中调制的数字有效载荷在有效载荷字段（33）中，调制的传输协议比特是在数据独立字段（32）中。

9. 发明授权

US06240278B1 Scalar cost function based predistortion linearizing device, method, phone and basestation 失效
标题翻译：基于标量成本函数的预失真线性化设备，方法，手机和基站
公开(公告)号：US06240278B1
公开(公告)日：2001-05-29
申请号：US09126573
申请日：1998-07-30
申请人： Pallab Midya , John Grosspietsch
发明人： Pallab Midya , John Grosspietsch
IPC分类号： H04B138
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/3258 , H03F2200/336 , H03F2201/3233 , H04B1/00 , H04B1/04 , H04B2001/0425
摘要： A device (400), method (1200), phone (400) and basestation (400) for providing scalar measurement-based predistortion for linearization in a radio frequency RF power amplifier, includes: a polynomial predistortion unit (406), coupled to receive an input baseband signal and polynomial coefficient weights, for predistorting the baseband signal to provide a predistorted baseband signal in accordance with the polynomial coefficient weights; an RF modulator (402), coupled to the polynomial predistortion unit (406) and to an RF generator (403), for modulating the predistorted baseband signal to provide an RF signal; an RF power amplifier (401), coupled to the RF modulator (402) and to a power supply (408), for amplifying the RF signal to provide an amplified RF signal, a scalar cost function generator (405), coupled to receive the amplified RF signal, for computing a scalar cost function; and a coefficient update unit (407), coupled to receive the scalar out-of-band-energy cost function, for tuning the polynomial coefficients in accordance with minimizing the scalar cost function to provide a linear amplified RF signal.
摘要翻译：一种用于在射频RF功率放大器中提供用于线性化的基于标量测量的预失真的装置（400），方法（1200），电话（400）和基站（400），包括：多项式预失真单元，输入基带信号和多项式系数权重，用于对所述基带信号进行预失真以根据所述多项式系数权重提供预失真基带信号; 耦合到所述多项式预失真单元（406）和RF发生器（403）的RF调制器（402），用于调制所述预失真基带信号以提供RF信号; RF功率放大器（401），耦合到RF调制器（402）和电源（408），用于放大RF信号以提供放大的RF信号;标量成本函数发生器（405），被耦合以接收放大的RF信号，用于计算标量成本函数; 以及系数更新单元（407），被耦合以接收标量带外能量成本函数，用于根据最小化标量成本函数来调整多项式系数以提供线性放大RF信号。

10. 发明授权

US5835999A Low power regenerative feedback device and method 失效
标题翻译：低功率再生反馈装置及方法
公开(公告)号：US5835999A
公开(公告)日：1998-11-10
申请号：US660624
申请日：1996-06-06
申请人： John Grosspietsch , Lindo St. Angel
发明人： John Grosspietsch , Lindo St. Angel
IPC分类号： G05F3/24 , H03K5/08
CPC分类号： G05F3/242
摘要： A low power regenerative feedback device and method automatically increases bias current during positive large-signal slewing, enabling output to change faster. When the device is not in a positive slew, bias currents are unchanged, providing a low standby current. Since regenerative feedback is internal and automatic to the device, current is increased only for the device driving an active column of an LCD panel. Thus, the present invention is power efficient. In addition, the AC response of the device is preserved because the device utilizes a regenerative feedback circuit that does not add appreciable excess phase shift. The device achieves an output that switches readily from positive supply to negative supply.
摘要翻译：低功率再生反馈装置和方法在正大信号回转期间自动增加偏置电流，使输出变化更快。当器件不是正转时，偏置电流不变，提供低待机电流。由于再生反馈对于器件是内部自动的，因此只能为驱动LCD面板的有效列的器件提供电流。因此，本发明是功率效率的。另外，器件的AC响应被保留，因为器件利用不增加可观的过量相移的再生反馈电路。该器件实现了从正电源切换到负电源的输出。

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