公开(公告)号：US06671500B2

公开(公告)日：2003-12-30

申请号：US09823680

申请日：2001-03-30

申请人： Morten Damgaard ,  Alyosha C. Molnar ,  Rahul Magoon ,  William J. Domino ,  Andrew Zhang

发明人： Morten Damgaard ,  Alyosha C. Molnar ,  Rahul Magoon ,  William J. Domino ,  Andrew Zhang

IPC分类号： H04B104

CPC分类号： H03D7/163 ,  H03L7/185 ,  H03L7/1974 ,  H04B1/403

摘要： A system is disclosed for transmitting and receiving signals. The system includes the use of a frequency plan table a system for creating the frequency plan table. The frequency plan table relates carrier frequency channels to the operation of a synthesizer and a plurality of programmable frequency dividers in a locked loop. In a transmitter, a first programmable frequency divider accepts a reference signal and produces a comparison signal. A mixer accepts the reference signal and a transmission signal and produces a loop signal. A second programmable frequency divider accepts the loop signal and produces a loop signal having a divided intermediate frequency signal. A phase detector compares the comparison signal and the loop signal having a divided intermediate frequency and produces an output that controls a variable controlled oscillator. The variable controlled oscillator produces a modulated transmission signal.

公开(公告)号：US07103127B2

公开(公告)日：2006-09-05

申请号：US09823316

申请日：2001-03-30

申请人： Morten Damgaard ,  William J. Domino ,  Rahul Magoon ,  Alyosha C. Molnar ,  Jeff Zachan

发明人： Morten Damgaard ,  William J. Domino ,  Rahul Magoon ,  Alyosha C. Molnar ,  Jeff Zachan

IPC分类号： H04L7/04 ,  H03B21/00 ,  H03L7/00

CPC分类号： H03L7/099 ,  H03B2201/025 ,  H03B2201/0291 ,  H03J2200/10 ,  H03L5/00 ,  H03L7/087 ,  H03L7/113

摘要： Systems for controlling the frequency of the output signal of a controllable oscillator in a frequency synthesizer are provided. One such system comprises a controllable oscillator and a frequency control circuit. The controllable oscillator is configured to generate an output signal that has a predefined frequency. The controllable oscillator is also configured with a plurality of operational states that are controlled by the frequency control circuit. Each operational state of the controllable oscillator defines a distinct frequency for the output signal of the controllable oscillator. The frequency control circuit receives the output signal of the controllable oscillator and determines the distinct frequency for the output signal that best approximates the predefined frequency. The frequency control circuit may also provide a control signal to the controllable oscillator that is configured to change the controllable oscillator to the operational state corresponding to the distinct frequency that best approximates the predefined frequency.

公开(公告)号：US07376116B2

公开(公告)日：2008-05-20

申请号：US10357125

申请日：2003-02-03

申请人： Dmitriy Rozenblit ,  William J. Domino ,  Morten Damgaard ,  Rahul Magoon

发明人： Dmitriy Rozenblit ,  William J. Domino ,  Morten Damgaard ,  Rahul Magoon

IPC分类号： H04B7/216

CPC分类号： H04B1/006 ,  H04B1/0003 ,  H04B1/0028 ,  H04B1/0032 ,  H04B1/406 ,  H04W88/06

摘要： A software defined transmit architecture includes a plurality of individually selectable components that can be selectively enabled to transmit a data signal that complies with any of a plurality of transmission standards. The software defined transmit architecture comprises components that can be enabled by associated logic to transmit, for example, communications signals that comply with the global system for mobile communications (GSM), enhanced data rates for GSM evolution (EDGE), which employs TDMA, and wide band code division multiple access (WCDMA) transmission standards. A single transmit architecture supports multiple transmission standards, thus minimizing the number of components in a multi-band, multi-mode portable transceiver, while reducing the number of active components.

摘要翻译： 软件定义的发射架构包括多个可单独选择的组件，其可以被选择性地启用以发送符合多个传输标准中的任何一个的数据信号。 软件定义的发射架构包括可由相关逻辑启用的组件，例如，发送符合全球移动通信系统（GSM）的通信信号，采用TDMA的GSM演进增强数据速率（EDGE），以及 宽带码分多址（WCDMA）传输标准。 单个传输架构支持多种传输标准，从而最大限度地减少多频带多模式便携式收发器中的组件数量，同时减少有源组件的数量。

公开(公告)号：US20090015324A1

公开(公告)日：2009-01-15

申请号：US11827185

申请日：2007-07-11

申请人： Rahul Magoon ,  Scott D. Kee ,  Seyed-Ali Hajimiri ,  Ichiro Aoki ,  Roberto Aparicio Joo ,  Morten Damgaard ,  Setu Mohta ,  Geoff Hatcher

发明人： Rahul Magoon ,  Scott D. Kee ,  Seyed-Ali Hajimiri ,  Ichiro Aoki ,  Roberto Aparicio Joo ,  Morten Damgaard ,  Setu Mohta ,  Geoff Hatcher

IPC分类号： H03G3/24 ,  H03G11/04

CPC分类号： H03F1/02 ,  G01R19/04 ,  H03F1/32 ,  H03F1/52 ,  H03F3/19 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/378 ,  H03F2200/393 ,  H03F2200/451 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2200/541 ,  H03F2200/99 ,  H03G3/3047

摘要： A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.

摘要翻译： 提供了一种用于控制放大器功率的系统。 该系统包括接收电压信号并产生衰减的电压包络信号的电压包络检测器。 电流包络检测器接收电流信号并产生衰减电流包络信号。 控制器接收功率电平数据并产生电压包络信号和电流包络信号的衰减控制数据。 检测器接收电压包络信号和电流包络信号，并且基于电压包络信号和电流包络信号中的较大者产生控制信号。 功率放大器电平控制器接收控制信号并产生功率放大器电平控制信号。

公开(公告)号：US20080032634A1

公开(公告)日：2008-02-07

申请号：US11771130

申请日：2007-06-29

申请人： Rahul Magoon ,  Morten Damgaard ,  Roberto Aparicio Joo ,  Scott D. Kee ,  Ichiro Aoki

发明人： Rahul Magoon ,  Morten Damgaard ,  Roberto Aparicio Joo ,  Scott D. Kee ,  Ichiro Aoki

IPC分类号： H04B1/40 ,  H03G3/00

CPC分类号： H03G3/004 ,  H03F1/34 ,  H03F3/19 ,  H03F3/24 ,  H04B2001/0433

摘要： A system for controlling the power output of a power amplifier includes a power amplifier through which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, a feedback signal comprising a portion of the output of the power amplifier, a first control loop configured to receive the feedback signal and configured to apply an amplitude modulated (AM) signal to the power amplifier and configured to control the gain of the power amplifier, a second control loop configured to receive the feedback signal and configured to correct for offsets in the forward path and to linearize the first control loop; and a third control loop configured to receive the feedback signal and configured to control the phase of the PM component of the transmit signal.

摘要翻译： 用于控制功率放大器的功率输出的系统包括：功率放大器，具有幅度调制（AM）分量和相位调制（PM）分量的发射信号通过该功率放大器通过并放大，所述功率放大器包括前向路径 ，包括功率放大器的输出的一部分的反馈信号;第一控制回路，被配置为接收反馈信号并被配置为将幅度调制（AM）信号施加到功率放大器并且被配置为控制功率放大器的增益 第二控制回路，被配置为接收所述反馈信号并被配置为校正所述正向通路中的偏移并且使所述第一控制回路线性化; 以及第三控制回路，被配置为接收所述反馈信号并被配置为控制所述发射信号的PM分量的相位。

公开(公告)号：US06952569B2

公开(公告)日：2005-10-04

申请号：US10370585

申请日：2003-02-24

申请人： Morten Damgaard ,  Rahul Magoon

发明人： Morten Damgaard ,  Rahul Magoon

IPC分类号： H03C3/09 ,  H03L7/18 ,  H03L7/185 ,  H04L27/00 ,  H03D3/29

CPC分类号： H03C3/0983 ,  H03C3/0966 ,  H03L7/1806 ,  H03L7/185 ,  H04L2027/0016 ,  H04L2027/0018

摘要： A transmitter for a wireless handset having a modified translation loop architecture. The transmitter includes a VCO that generates a modulated transmit signal having a frequency fTx, and a modulated signal source that generates a modulated LO signal with a frequency fLO. A mixer mixes the transmit signal with the LO signal to produce an IF signal having a frequency fIF. A first divider divides the LO signal frequency fLO by an integer M to generate a first comparison signal having a frequency fCF. A second divider divides the IF signal frequency fIF, after it is multiplied by an integer K, by an integer N to generate a second comparison signal having a frequency fCF. The transmit and LO signal frequencies have the relationship f Tx = f LO ⁢ KM ± N M . A phase detector coupled to the first and second comparison signals compares the phases of the signals and outputs a control voltage to the VCO proportional to any phase differences between the signals.

摘要翻译： 一种用于具有修改的平移环结构的无线手机的发射机。 发射机包括产生具有频率f Tx的调制的发射信号的VCO和产生具有频率为LO LO的调制LO信号的调制信号源。 混合器将发送信号与LO信号混合以产生具有频率f IF IF的IF信号。 第一分频器将LO信号频率f LO LO分频整数M以产生具有频率f CF1的第一比较信号。 第二分频器将IF信号频率f IF IF在乘以整数K之后除以整数N，以产生具有频率f CF1的第二比较信号。 发送和LO信号频率具有关系