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1. 发明授权

US08964821B2 Shared feedback for adaptive transmitter pre-distortion 有权
标题翻译：自适应发射机预失真的共享反馈
公开(公告)号：US08964821B2
公开(公告)日：2015-02-24
申请号：US13364065
申请日：2012-02-01
申请人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
发明人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
IPC分类号： H04B1/38 , H04L5/16 , H04L27/36 , H03F1/32 , H03F3/195 , H03F3/24 , H03F3/68 , H03F3/72 , H04B7/08
CPC分类号： H04L27/368 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2201/3212 , H03F2203/7221 , H03F2203/7236 , H04B7/0825
摘要： A modem is described. The modem includes a transmitter. The transmitter includes a digital pre-distortion module and a power amplifier. The modem also includes one or more selected shared receivers. The one or more selected shared receivers generate a feedback signal for the digital pre-distortion module. The modem further includes a feedback switch. The feedback switch selectively couples the one or more selected shared receivers to an output of the transmitter.
摘要翻译：调制解调器被描述。调制解调器包括发射机。发射机包括数字预失真模块和功率放大器。调制解调器还包括一个或多个选择的共享接收器。一个或多个选择的共享接收器产生用于数字预失真模块的反馈信号。调制解调器还包括反馈开关。反馈开关将一个或多个选择的共享接收机选择性地耦合到发射机的输出。

2. 发明申请

US20130094550A1 SHARED FEEDBACK FOR ADAPTIVE TRANSMITTER PRE-DISTORTION 有权
标题翻译：用于自适应发射机预失真的共享反馈
公开(公告)号：US20130094550A1
公开(公告)日：2013-04-18
申请号：US13364065
申请日：2012-02-01
申请人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
发明人： Philip D. Coan , Paul J. Draxler , Roberto Rimini , Thomas D. Marra , Gurkanwal Singh Sahota , Steven C. Ciccarelli , Shrenik Patel
IPC分类号： H04L25/49 , H04B1/38
CPC分类号： H04L27/368 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2201/3212 , H03F2203/7221 , H03F2203/7236 , H04B7/0825
摘要： A modem is described. The modem includes a transmitter. The transmitter includes a digital pre-distortion module and a power amplifier. The modem also includes one or more selected shared receivers. The one or more selected shared receivers generate a feedback signal for the digital pre-distortion module. The modem further includes a feedback switch. The feedback switch selectively couples the one or more selected shared receivers to an output of the transmitter.
摘要翻译：调制解调器被描述。调制解调器包括发射机。发射机包括数字预失真模块和功率放大器。调制解调器还包括一个或多个选择的共享接收器。一个或多个选择的共享接收器产生用于数字预失真模块的反馈信号。调制解调器还包括反馈开关。反馈开关将一个或多个选择的共享接收机选择性地耦合到发射机的输出。

3. 发明申请

US20110025422A1 POWER AMPLIFIER BIAS CURRENT MONITOR AND CONTROL MECHANISM 有权
标题翻译：功率放大器偏置电流监测和控制机制
公开(公告)号：US20110025422A1
公开(公告)日：2011-02-03
申请号：US12704432
申请日：2010-02-11
申请人： Thomas D. Marra , Aristotele Hadjichristos , Nathan M. Pietcher
发明人： Thomas D. Marra , Aristotele Hadjichristos , Nathan M. Pietcher
IPC分类号： H03F3/18 , H03M1/12
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/189
摘要： Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.
摘要翻译：描述了用于监视和控制放大器偏置电流的技术。在示例性设计中，装置可以包括放大器和偏置电路。放大器可以包括耦合到电感器的至少一个晶体管。偏置电路可以为放大器中的至少一个晶体管产生至少一个偏置电压，以获得放大器的目标偏置电流。偏置电路可以基于放大器中的电感器两端的电压或通过放大器中的至少一个晶体管中的一个形成的电流镜的电流或栅极至源极电压来产生至少一个偏置电压放大器中的至少一个晶体管中的一个，或复制放大器的复制电路中的电压，或禁用开关模式电源的施加到放大器的电流。

4. 发明授权

US08824967B2 Dynamically changing a transmitter sampling frequency for a digital-to-analog converter (DAC) to reduce interference from DAC images 有权
标题翻译：动态更改数模转换器（DAC）的发射机采样频率，以减少DAC图像的干扰
公开(公告)号：US08824967B2
公开(公告)日：2014-09-02
申请号：US12823668
申请日：2010-06-25
申请人： Thomas D. Marra , Soon-Seng Lau , Inyup Kang , Arash Mirbagheri
发明人： Thomas D. Marra , Soon-Seng Lau , Inyup Kang , Arash Mirbagheri
IPC分类号： H04B1/00 , H04B1/52 , H04B1/04 , H03M1/66
CPC分类号： H04B1/525 , H03M1/661 , H04B1/0475
摘要： A method for interference reduction is described. The method is implemented in a wireless device. It is determined that a page is going to be received via a secondary receiver. It is also determined that a digital-to-analog converter (DAC) image from a transmitter will cause interference with the secondary receiver when the page is received. A sampling frequency of the DAC for the transmitter is changed so that there are not any DAC images from the transmitter that will cause interference with the secondary receiver.
摘要翻译：描述了一种减少干扰的方法。该方法在无线设备中实现。确定将通过次级接收器接收页面。还确定，当接收到页面时，来自发射器的数模转换器（DAC）图像将引起与次级接收机的干扰。改变发射机的DAC的采样频率，使得没有来自发射机的任何DAC图像将导致与次要接收机的干扰。

5. 发明授权

US09166533B2 Bias current monitor and control mechanism for amplifiers 有权
标题翻译：放大器的偏置电流监视和控制机制
公开(公告)号：US09166533B2
公开(公告)日：2015-10-20
申请号：US12704432
申请日：2010-02-11
申请人： Thomas D. Marra , Aristotele Hadjichristos , Nathan M. Pletcher
发明人： Thomas D. Marra , Aristotele Hadjichristos , Nathan M. Pletcher
IPC分类号： H03G3/10 , H03F3/04 , H03F1/30 , H03F3/189
CPC分类号： H03F1/301 , H03F1/30 , H03F3/04 , H03F3/189
摘要： Techniques for monitoring and controlling bias current of amplifiers are described. In an exemplary design, an apparatus may include an amplifier and a bias circuit. The amplifier may include at least one transistor coupled to an inductor. The bias circuit may generate at least one bias voltage for the at least one transistor in the amplifier to obtain a target bias current for the amplifier. The bias circuit may generate the at least one bias voltage based on a voltage across the inductor in the amplifier, or a current through a current mirror formed with one of the at least one transistor in the amplifier, or a gate-to-source voltage of one of the at least one transistor in the amplifier, or a voltage in a replica circuit replicating the amplifier, or a current applied to the amplifier with a switched mode power supply disabled.
摘要翻译：描述了用于监视和控制放大器偏置电流的技术。在示例性设计中，装置可以包括放大器和偏置电路。放大器可以包括耦合到电感器的至少一个晶体管。偏置电路可以为放大器中的至少一个晶体管产生至少一个偏置电压，以获得放大器的目标偏置电流。偏置电路可以基于放大器中的电感器两端的电压或通过放大器中的至少一个晶体管中的一个形成的电流镜的电流或栅极至源极电压来产生至少一个偏置电压放大器中的至少一个晶体管中的一个，或复制放大器的复制电路中的电压，或禁用开关模式电源的施加到放大器的电流。

6. 发明申请

US20110044380A1 DYNAMICALLY CHANGING A TRANSMITTER SAMPLING FREQUENCY FOR A DIGITAL-TO-ANALOG CONVERTER (DAC) TO REDUCE INTERFERENCE FROM DAC IMAGES 有权
标题翻译：动态更改用于数字模拟转换器（DAC）的发射机采样频率，以减少DAC图像的干扰
公开(公告)号：US20110044380A1
公开(公告)日：2011-02-24
申请号：US12823668
申请日：2010-06-25
申请人： Thomas D. Marra , Soon-Seng Lau , Inyup Kang , Arash Mirbagheri
发明人： Thomas D. Marra , Soon-Seng Lau , Inyup Kang , Arash Mirbagheri
IPC分类号： H04B15/00
CPC分类号： H04B1/525 , H03M1/661 , H04B1/0475
摘要： A method for interference reduction is described. The method is implemented in a wireless device. It is determined that a page is going to be received via a secondary receiver. It is also determined that a digital-to-analog converter (DAC) image from a transmitter will cause interference with the secondary receiver when the page is received. A sampling frequency of the DAC for the transmitter is changed so that there are not any DAC images from the transmitter that will cause interference with the secondary receiver.
摘要翻译：描述了一种减少干扰的方法。该方法在无线设备中实现。确定将通过次级接收器接收页面。还确定，当接收到页面时，来自发射器的数模转换器（DAC）图像将引起与次级接收机的干扰。改变发射机的DAC的采样频率，使得没有来自发射机的任何DAC图像将导致与次要接收机的干扰。

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