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1. 发明申请

WO2009100408A3 CLOSED-LOOP ADAPTIVE POWER CONTROL FOR ADJUSTING BANDWIDTH IN A MOBILE HANDSET TRANSMITTER 审中-公开
标题翻译：用于调整移动手机发送器中带宽的闭环自适应功率控制
公开(公告)号：WO2009100408A3
公开(公告)日：2009-11-19
申请号：PCT/US2009033497
申请日：2009-02-07
申请人： SKYWORKS SOLUTIONS INC , HE YONGQIANG , VASA JOHN E , KAHRIZI MASOUD
发明人： HE YONGQIANG , VASA JOHN E , KAHRIZI MASOUD
IPC分类号： H04W52/08
CPC分类号： H04W52/52 , H04W52/226 , H04W52/367
摘要： A mobile handset is arranged with an adaptive power controller to controllably adjust transmit power. The adaptive power controller is coupled to a power amplifier module to form a closed feedback loop. The adaptive power control module includes a first shifter, a first sealer, an accumulator and a hold element. The first shifter and first sealer receive respective bandwidth control signals and an error signal. The first shifter and first sealer generate a modified error signal that is forwarded to and filtered by the accumulator and the hold element to generate a power control signal. The power control signal, which is generated the radio frequency subsystem of the handset can quickly and accurately track rapid changes in transmit power.
摘要翻译：移动手持机配置有自适应功率控制器以可控地调节发射功率。自适应功率控制器耦合到功率放大器模块以形成闭合反馈回路。自适应功率控制模块包括第一移位器，第一缩放器，累加器和保持元件。第一移位器和第一缩放器接收相应的带宽控制信号和错误信号。第一移位器和第一缩放器产生修正的错误信号，该信号被转发到累加器和保持元件并由其滤波以生成功率控制信号。手机射频子系统产生的功率控制信号可以快速准确地跟踪发射功率的快速变化。

2. 发明申请

WO2008027295A3 ADAPTIVE PREDISTORTION FOR CONTROLLING AN OPEN LOOP POWER AMPLIFIER 审中-公开
标题翻译：用于控制开环功率放大器的自适应预测
公开(公告)号：WO2008027295A3
公开(公告)日：2010-06-17
申请号：PCT/US2007018693
申请日：2007-08-24
申请人： SKYWORKS SOLUTIONS INC , KOMAILI JALEH , VASA JOHN E , DAMGAARD MORTEN , RIPLEY DAVID S
发明人： KOMAILI JALEH , VASA JOHN E , DAMGAARD MORTEN , RIPLEY DAVID S
IPC分类号： H03F1/26
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/3288 , H03F3/195 , H03F3/24 , H03F2201/3233 , H04B2001/0425
摘要： An adaptive predlstortlon system for controlling an open loop power amplifier includes a transmitter, a receiver, a phase and amplitude determination element configured to determine amplitude, and phase characteristics of an output signal generated In the transmitter, an amplitude resampling element to generate an updated AM-AM predlstortlon signal based on the output signal generated In the transmitter, and an amplitude predlstortlon element to compare the updated AM-AM predlstortlon signal with a factory-calibrated AM-A predlstortlon signal and generate an amplitude compensation signal. The adaptive predlslortlon system Includes a phase comparison element configured to compare the signal representing transmitter characteristics with a desired phase signal, a phase resampling lement configured to generate an updated AM-PM predlstortlon signal based on the output signal generated In the transmitter, and a has? predistortlon element configured to compare the updated AM-PM predlstortlon signal with a factory-calibrated AM-PM redlstortlon signal and generate a phase compensation signal.
摘要翻译：一种用于控制开环功率放大器的自适应预失真系统包括发射机，接收机，相位和幅度确定元件，其被配置为确定在发射机中产生的输出信号的振幅和相位特性，振幅重采样元件以产生更新的AM 基于在发射机中产生的输出信号的预激振动信号和用于将更新的AM-AM预振荡信号与出厂校准的AM-A预振荡信号进行比较的振幅预振荡元件，并产生振幅补偿信号。自适应前置时钟系统包括相位比较元件，其被配置为将表示发射机特性的信号与期望的相位信号进行比较;相位重采样功能，被配置为基于在发射机中产生的输出信号来生成更新的AM-PM预振荡信号，？预失真元件，其被配置为将更新的AM-PM预振荡信号与出厂校准的AM-PM红函数信号进行比较，并产生相位补偿信号。

3. 发明申请

WO2010080788A3 CIRCUITS, SYSTEMS, AND METHODS FOR MANAGING AUTOMATIC GAIN CONTROL IN QUADRATURE SIGNAL PATHS OF A RECEIVER 审中-公开
标题翻译：电路，系统和方法，用于管理自动增益控制在接收器的平均信号
公开(公告)号：WO2010080788A3
公开(公告)日：2010-09-10
申请号：PCT/US2010020197
申请日：2010-01-06
申请人： SKYWORKS SOLUTIONS INC , KOMAILI JALEH , VASA JOHN E , OBKIRCHER THOMAS
发明人： KOMAILI JALEH , VASA JOHN E , OBKIRCHER THOMAS
IPC分类号： H04B1/12
CPC分类号： H04L27/3809 , H03G3/3089 , H04L27/2647
摘要： A system provides closed-loop gain control in a WCDMA mode and open loop control in an EDGE/GSM mode. Gain control is distributed across analog devices and a digital sealer in a wireless receiver. In the WCDMA mode, a loop filter generates an error signal that is forwarded to analog and digital control paths. The analog control path includes a first adder, a programmable hysteresis element, and a lookup table. The analog control signal is responsive to thresholds, which when used in conjunction with a previous gain value determine a new gain value. The digital control path includes a second adder, a programmable delay element, and a converter. A control word is responsive to a difference of the error signal, a calibration value, and the analog control signal. Blocker detection is provided in the WCDMA mode of operation. A controller sets system parameters using a state machine.
摘要翻译：系统以WCDMA模式提供闭环增益控制，并以EDGE / GSM模式提供开环控制。增益控制分布在无线接收器中的模拟设备和数字封隔器上。在WCDMA模式中，环路滤波器产生转发到模拟和数字控制路径的错误信号。模拟控制路径包括第一加法器，可编程滞后元件和查找表。模拟控制信号响应于当与先前的增益值结合使用时确定新的增益值的阈值。数字控制路径包括第二加法器，可编程延迟元件和转换器。控制字响应误差信号，校准值和模拟控制信号的差异。在WCDMA操作模式中提供阻塞检测。控制器使用状态机设置系统参数。

4. 发明申请

WO2005101649A3 DIRECT CURRENT OFFSET CORRECTION SYSTEMS AND METHODS 审中-公开
标题翻译：直接电流校正系统和方法
公开(公告)号：WO2005101649A3
公开(公告)日：2007-02-22
申请号：PCT/US2005012334
申请日：2005-04-12
申请人： SKYWORKS SOLUTIONS INC , RAMACHANDRAN BALA , VASA JOHN E
发明人： RAMACHANDRAN BALA , VASA JOHN E
IPC分类号： H04B1/00 , H03F1/22 , H03F1/30 , H04B1/06 , H04B1/10 , H04B7/00 , H04B15/00
CPC分类号： H03F1/30 , H03F2200/294 , H03F2200/331 , H03F2200/372 , H04B1/30
摘要： A system and method for direct current offset correction are disclosed. One embodiment of the system includes a direct current offset correction circuitry (240a, 240b) having an adjustable bandwidth and control logic (119) configured to effect a bandwidth change of the direct current offset correction circuitry to speed up warm-up and settling time of the direct current offset correction circuitry.
摘要翻译：公开了用于直流偏移校正的系统和方法。该系统的一个实施例包括具有可调节带宽的控制逻辑（119）的直流偏移校正电路（240a，240b）和用于实现直流偏移校正电路的带宽变化的控制逻辑（119），以加速预热和稳定时间直流偏移校正电路。

5. 发明申请

WO2006116391A3 RECEIVER FOR A MULTIMODE RADIO 审中-公开
标题翻译：接收器用于多模式无线电
公开(公告)号：WO2006116391A3
公开(公告)日：2009-04-30
申请号：PCT/US2006015611
申请日：2006-04-26
申请人： SKYWORKS SOLUTIONS INC
发明人： RAMACHANDRAN BALASUBRAMANIAN , VASA JOHN E , LIPAN TUDOR , BEAMISH NORMAN J
IPC分类号： H04M1/00 , H04L25/00
CPC分类号： H04B1/707 , H04B1/0067 , H04B2201/70711
摘要： A receiver for a multi-mode wireless device is provided. The receiver has multiple analog RF front end modules, with each module supporting a different mode of operation. The receiver has a single digital backend module for generating a digital baseband signal. A controller selects one of the available RF modules to use, and the selected RF module provides an analog communication signal to the digital backend. Each available mode has an associated set of factors. When a particular mode is selected, the set of factors associated with the selected mode is provided to the digital backend. The digital backend uses these factors to adjust the processing characteristics of its components, such as its analog to digital converter, filters, and gain controller. In this way, the single digital backend is adaptable to the requirements of each of the available radio modes.
摘要翻译：提供了一种用于多模式无线设备的接收机。接收器具有多个模拟RF前端模块，每个模块支持不同的操作模式。接收器具有用于产生数字基带信号的单个数字后端模块。控制器选择可使用的RF模块之一，并且所选择的RF模块向数字后端提供模拟通信信号。每个可用模式都有一组相关的因素。当选择特定模式时，将与所选模式相关联的因子集提供给数字后端。数字后端使用这些因素来调整其组件的处理特性，例如其模数转换器，滤波器和增益控制器。以这种方式，单个数字后端可以适应每个可用无线电模式的要求。

6. 发明申请

WO2006116490A2 LOCAL OSCILLATOR FOR A DIRECT CONVERSION TRANSCEIVER 审中-公开
标题翻译：用于直接转换收发器的本地振荡器
公开(公告)号：WO2006116490A2
公开(公告)日：2006-11-02
申请号：PCT/US2006015796
申请日：2006-04-26
申请人： SKYWORKS SOLUTIONS INC
发明人： AGARWAL BIPUL , VASA JOHN E , YATES DAVID LESLIE , LEE CHANG-HYEON , LOKE ARAVIND , RAMACHANDRAN BALASUBRAMANIAN
IPC分类号： H04B7/00
CPC分类号： H04B1/30 , H04B1/525
摘要： A local oscillator circuit for generating a local frequency signal is provided. The local oscillator circuit may cooperate with a radio circuit for providing wireless reception or transmission. The radio circuit performs modulation or demodulation processes with reference to a defined carrier signal frequency. The local oscillator circuit has a voltage controlled oscillator that generates a VCO signal at frequency different than the carrier frequency. A frequency scaling circuit applies a scaling factor to the VCO signal, with the scaled signal generated at the frequency of the defined carrier frequency.
摘要翻译：提供了一种用于产生本地频率信号的本地振荡器电路。本地振荡器电路可以与用于提供无线接收或传输的无线电电路协作。无线电电路参照定义的载波信号频率进行调制或解调处理。本地振荡器电路具有压控振荡器，其产生频率不同于载波频率的VCO信号。频率缩放电路将缩放因子应用于VCO信号，其中缩放的信号以定义的载波频率产生。

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