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1. 发明申请

WO2012106553A1 DUPLEXER BYPASS 审中-公开
标题翻译：双机旁路
公开(公告)号：WO2012106553A1
公开(公告)日：2012-08-09
申请号：PCT/US2012/023688
申请日：2012-02-02
申请人： QUALCOMM INCORPORATED , CHAN, ChunChung , NG, Alvin Siu-Chung , GUDEM, Prasad S.
发明人： CHAN, ChunChung , NG, Alvin Siu-Chung , GUDEM, Prasad S.
IPC分类号： H04B1/44
CPC分类号： H04B1/44 , H04B1/525 , H04B7/0602 , H04B7/0802
摘要： Disclosed are circuits, techniques and methods for implementing a process of selectively bypassing a duplexer in a transmission path. In a particular embodiment, a receiver and a transmitter are coupled to a shared antenna through a duplexer. The duplexer may be selectively bypassed under certain conditions while the receiver is disabled and/or powered off.
摘要翻译：公开了用于实现选择性地绕过传输路径中的双工器的过程的电路，技术和方法。在特定实施例中，接收机和发射机通过双工器耦合到共享天线。在接收机被禁用和/或断电的情况下，可以在特定条件下选择性地旁路双工器。

2. 发明申请

WO2011153076A3 REDUCING POWER CONSUMPTION BY TAKING ADVANTAGE OF SUPERIOR IN-CIRCUIT DUPLEXER PERFORMANCE 审中-公开
标题翻译：通过获得超级电路双工器性能优势降低功耗
公开(公告)号：WO2011153076A3
公开(公告)日：2012-03-08
申请号：PCT/US2011038241
申请日：2011-05-26
申请人： QUALCOMM INC , GUDEM PRASAD S , LAU SOON-SENG , LIU LI
发明人： GUDEM PRASAD S , LAU SOON-SENG , LIU LI
IPC分类号： H04B1/10 , H04B1/16 , H04B1/52 , H04W52/02
CPC分类号： H04B1/525 , H04B1/109 , H04W52/0238 , Y02D70/00 , Y02D70/1242 , Y02D70/164 , Y02D70/40
摘要： Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain amount, and may only be guaranteed to have a receive band rejection of another amount, the actual transmit band rejection and the actual receive band rejection of a particular instance of the duplexer may be better than specified. Rather than consuming excess power in the receiver and/or transmitter in order to meet performance requirements assuming the duplexer only performs as well as specified, the duplexer's in-circuit performance is measured as part of a transmitter-to-receiver isolation determination. Transmitter and/or receiver power settings are reduced where possible to take advantage of the measured better-than-specified in-circuit duplexer performance, while still meeting transceiver performance requirements. Power settings are not changed during normal transmit and receive mode operation.
摘要翻译：虽然全双工收发器电路中的双工器可能只能由双工器制造商保证从其TX端口到其一定数量的RX端口的发射波段抑制，并且只能保证具有另一个的接收频带抑制数量，双工器的特定实例的实际发射频带抑制和实际接收频带抑制可能优于指定的。假设双工器仅执行指定，而不是在接收机和/或发射机中消耗多余的功率，以满足性能要求，则双工器的在线性能是作为发射机到接收机隔离确定的一部分进行测量的。发射机和/或接收机功率设置在可能的情况下可以减少，以便在仍然满足收发器性能要求的同时利用测得的优于指定的在线双工器性能。在正常的发送和接收模式操作期间，电源设置不会改变。

3. 发明申请

WO2008112800A2 WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE 审中-公开
标题翻译：带有过滤器的无线接收器，以减少发射信号泄漏的影响
公开(公告)号：WO2008112800A2
公开(公告)日：2008-09-18
申请号：PCT/US2008056711
申请日：2008-03-12
申请人： QUALCOMM INC , CHANG LI-CHUNG , GUDEM PRASAD S , CABANILLAS JOSE
发明人： CHANG LI-CHUNG , GUDEM PRASAD S , CABANILLAS JOSE
IPC分类号： H04B1/52 , H04B1/10
CPC分类号： H04B1/525 , H04B1/1036
摘要： This disclosure describes techniques for reducing adverse effects of TX signal leakage in a full-duplex, wireless communication device. The techniques make use of a notch filter to reject TX signal leakage in a signal processed in the RX path of the wireless communication device. The notch filter may be constructed as a complex notch filter using passive resistor and capacitor components to produce a notch frequency that attenuates TX signal leakage components in a desired signal. The notch filter may be applied to a down-converted, baseband signal produced by a passive mixer.
摘要翻译：本公开描述了用于减少全双工无线通信设备中的TX信号泄漏的不利影响的技术。这些技术利用陷波滤波器来抑制在无线通信设备的RX路径中处理的信号中的TX信号泄漏。陷波滤波器可以被构造为使用无源电阻器和电容器部件的复陷波滤波器，以产生在所需信号中衰减TX信号泄漏分量的陷波频率。陷波滤波器可以应用于由无源混频器产生的下变频的基带信号。

4. 发明申请

WO2005079313A2 ADAPTIVE BIAS CURRENT CIRCUIT AND METHOD FOR AMPLIFIERS 审中-公开
标题翻译：自适应偏置电流电路和放大器的方法
公开(公告)号：WO2005079313A2
公开(公告)日：2005-09-01
申请号：PCT/US2005/004429
申请日：2005-02-14
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , LEUNG, Vincent, W. , GUDEM, Prasad, S. , LARSEN, Lawrence, E.
发明人： LEUNG, Vincent, W. , GUDEM, Prasad, S. , LARSEN, Lawrence, E.
CPC分类号： H03F1/0266 , H03F1/22 , H03F3/19 , H03F3/4508 , H03F2200/18 , H03F2200/451 , H03F2200/465 , H03F2203/45112 , H03F2203/45154 , H03F2203/45394 , H03F2203/45481
摘要： An adaptive bias method and circuits for amplifiers that provide a substantial current boost based at least partly upon a sensed input power of an amplifier circuit. Methods and circuits of the invention provide an additional bias current based upon the sensed input power. Circuits of the invention may be simple, area-efficient, low-power, stable and digitally-programmable. In addition, methods and circuits of the invention may be used with a number of amplifier circuit configurations, including amplifiers having either inductor and/or resistive degeneration.
摘要翻译：用于放大器的自适应偏置方法和电路，其至少部分地基于放大器电路的感测输入功率来提供实质的电流升压。本发明的方法和电路基于感测的输入功率提供额外的偏置电流。本发明的电路可以是简单的，区域有效的，低功率的，稳定的和数字可编程的。此外，本发明的方法和电路可以与许多放大器电路配置一起使用，包括具有电感和/或电阻退化的放大器。

5. 发明申请

WO2009129330A1 METHOD AND APPARATUS FOR PROCESSING A COMMUNICATION SIGNAL IN A RECEIVER 审中-公开
标题翻译：在接收机中处理通信信号的方法和装置
公开(公告)号：WO2009129330A1
公开(公告)日：2009-10-22
申请号：PCT/US2009/040701
申请日：2009-04-15
申请人： QUALCOMM INCORPORATED , GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
发明人： GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
IPC分类号： H04B1/10
CPC分类号： H04B1/109 , H03F1/3205 , H03F1/3211 , H03F3/193 , H03F3/245
摘要： A receiver includes a jammer detector configured to detect the presence or the absence of jamming in a communication signal within a gain state. The receiver further includes an amplifier configured to amplify the communication signal in a high linearity receiving mode or a low linearity receiving mode, wherein the high linearity receiving mode corresponds with a lower gain for the gain state in the amplifier relative to that of the low linearity receiving mode. In addition, the receiver includes a processing unit coupled to the jammer detector, the processing unit being configured to control the amplifier to amplify the communication signal in either the high linearity receiving mode or the low linearity receiving mode, based on the output of the jammer detector detecting the presence or the absence of jamming in the communication signal. A method is also provided for processing a communication signal in a receiver.
摘要翻译：接收机包括干扰检测器，其被配置为检测在增益状态内的通信信号中存在或不存在干扰。接收器还包括放大器，被配置为以高线性度接收模式或低线性度接收模式放大通信信号，其中高线性度接收模式对应于放大器相对于低线性度的增益状态的较低增益接收模式。此外，接收机包括耦合到干扰检测器的处理单元，该处理单元被配置为基于干扰信号的输出来控制放大器以高线性接收模式或低线性接收模式放大通信信号检测器检测通信信号中是否存在干扰。还提供了一种用于处理接收机中的通信信号的方法。

6. 发明申请

WO2009126661A1 A HIGHLY LINEAR EMBEDDED FILTERING PASSIVE MIXER 审中-公开
标题翻译：高线性嵌入式过滤无源混频器
公开(公告)号：WO2009126661A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/039821
申请日：2009-04-07
申请人： QUALCOMM INCORPORATED , KIM, Namsoo , GUDEM, Prasad, S. , VLADIMIR, Aparin
发明人： KIM, Namsoo , GUDEM, Prasad, S. , VLADIMIR, Aparin
IPC分类号： H03D7/16
CPC分类号： H03D7/163 , H03D7/1466 , H03D7/166
摘要： A communication channel has a highly linear switched current mixer that incorporates passive filtering (e.g., low pass, notch) for improved transmitting (Tx) and receiving (Rx) with adding external filtering components. A high IIP2 (input referenced second order intercept point) of the receiver at the Tx offset is essential to avoid corrupting the system's sensitivity performance, and a high triple beat (TB) is required to avoid sensitivity degradation due to transmitter leakage. Thanks to the embedded filtering in the mixer and the active post-distortion (APD) method in a low noise amplifier (LNA), the required high linearity is achieved with low noise figure and power consumption, overcoming transmitter power leakage without the use of a SAW (surface acoustic wave) filter.
摘要翻译：通信通道具有高度线性的开关电流混频器，其结合无源滤波（例如，低通，陷波），用于增加外部滤波组件以改善发射（Tx）和接收（Rx）。接收机在Tx偏移处的高IIP2（输入参考二阶截取点）对于避免破坏系统的灵敏度性能至关重要，并且需要高三重（TB）以避免由于发射机泄漏引起的灵敏度劣化。由于混频器中的嵌入式滤波器和低噪声放大器（LNA）中的有源后失真（APD）方法，所需的高线性度可通过低噪声系数和功耗实现，克服发射机功率泄漏而不使用 SAW（表面声波）滤波器。

7. 发明申请

WO2009036080A1 COMMON MODE SIGNAL ATTENUATION FOR A DIFFERENTIAL DUPLEXER 审中-公开
标题翻译：差分双工器的共模信号衰减
公开(公告)号：WO2009036080A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/075881
申请日：2008-09-10
申请人： QUALCOMM INCORPORATED , CABANILLAS, Jose , GUDEM, Prasad, S. , KWOK, Sai, Chong , LOVE, David
发明人： CABANILLAS, Jose , GUDEM, Prasad, S. , KWOK, Sai, Chong , LOVE, David
IPC分类号： H04B1/52
CPC分类号： H04B1/52 , H04B1/18
摘要： Techniques for attenuating undesired signal components from a differential duplexer are described. The duplexer provides a differential received signal at RX+ and RX- ports. This differential received signal includes an undesired common mode signal, which may come from a transmit signal. The common mode signal is attenuated with a common mode trap in an impedance matching network coupled to the RX+ and RX- ports. The matching network includes a first passive circuit coupled between the RX+ port and a first node, a second passive circuit coupled between the RX- port and a second node, and the common mode trap coupled between the first and second nodes. In one design, the common mode trap includes a first inductor coupled between the first node and a common node, a second inductor coupled between the second node and the common node, and a capacitor coupled between the common node and circuit ground.
摘要翻译：描述了用于衰减来自差分双工器的不需要的信号分量的技术。双工器在RX +和RX-端口提供差分接收信号。该差分接收信号包括可能来自发射信号的不期望的共模信号。在耦合到RX +和RX-端口的阻抗匹配网络中，共模信号被一个共模陷波衰减。匹配网络包括耦合在RX +端口和第一节点之间的第一无源电路，耦合在RX端口和第二节点之间的第二无源电路以及耦合在第一和第二节点之间的共模陷阱。在一种设计中，共模阱包括耦合在第一节点和公共节点之间的第一电感器，耦合在第二节点和公共节点之间的第二电感器，以及耦合在公共节点和电路接地之间的电容器。

8. 发明申请

WO2008112800A3 WIRELESS RECEIVER WITH NOTCH FILTER TO REDUCE EFFECTS OF TRANSMIT SIGNAL LEAKAGE 审中-公开
公开(公告)号：WO2008112800A3
公开(公告)日：2008-09-18
申请号：PCT/US2008/056711
申请日：2008-03-12
申请人： QUALCOMM INCORPORATED , CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
发明人： CHANG, Li-Chung , GUDEM, Prasad S. , CABANILLAS, Jose
IPC分类号： H04B1/52 , H04B1/10
摘要： This disclosure describes techniques for reducing adverse effects of TX signal leakage in a full-duplex, wireless communication device. The techniques make use of a notch filter to reject TX signal leakage in a signal processed in the RX path of the wireless communication device. The notch filter may be constructed as a complex notch filter using passive resistor and capacitor components to produce a notch frequency that attenuates TX signal leakage components in a desired signal. The notch filter may be applied to a down-converted, baseband signal produced by a passive mixer.

9. 发明申请

WO2006034401A2 MULTIPLE SUB-CARRIER SELECTION DIVERSITY ARCHITECTURE AND METHOD FOR WIRELESS OFDM 审中-公开
标题翻译：用于无线OFDM的多个子载波选择多样性结构和方法
公开(公告)号：WO2006034401A2
公开(公告)日：2006-03-30
申请号：PCT/US2005033976
申请日：2005-09-22
申请人： UNIV CALIFORNIA , SUN YANG , GUDEM PRASAD S , LARSON LAWRENCE E
发明人： SUN YANG , GUDEM PRASAD S , LARSON LAWRENCE E
CPC分类号： H04B7/0868 , H04L5/0023 , H04L27/0002 , H04L27/2647
摘要： Sub-carrier selection methods and receiver architectures for receiving an Orthogonal Frequency Division Multiplexing band sensed by a plurality of antennas (10
摘要翻译：用于接收由多个天线感测的正交频分复用频带的子载波选择方法和接收机架构（10

10. 发明申请

WO2005079313A3 ADAPTIVE BIAS CURRENT CIRCUIT AND METHOD FOR AMPLIFIERS 审中-公开
标题翻译：自适应偏置电流电路和放大器的方法
公开(公告)号：WO2005079313A3
公开(公告)日：2006-01-12
申请号：PCT/US2005004429
申请日：2005-02-14
申请人： UNIV CALIFORNIA , LEUNG VINCENT W , GUDEM PRASAD S , LARSEN LAWRENCE E
发明人： LEUNG VINCENT W , GUDEM PRASAD S , LARSEN LAWRENCE E
IPC分类号： H03F3/04
CPC分类号： H03F1/0266 , H03F1/22 , H03F3/19 , H03F3/4508 , H03F2200/18 , H03F2200/451 , H03F2200/465 , H03F2203/45112 , H03F2203/45154 , H03F2203/45394 , H03F2203/45481
摘要： An adaptive bias method and circuits for amplifiers that provide a substantial current boost based at least partly upon a sensed input power of an amplifier circuit. Methods and circuits of the invention provide an additional bias current based upon the sensed input power. Circuits of the invention may be simple, area-efficient, low-power, stable and digitally-programmable. In addition, methods and circuits of the invention may be used with a number of amplifier circuit configurations, including amplifiers having either inductor and/or resistive degeneration.
摘要翻译：用于放大器的自适应偏置方法和电路，其至少部分地基于放大器电路的感测输入功率来提供实质的电流升压。本发明的方法和电路基于感测的输入功率提供额外的偏置电流。本发明的电路可以是简单的，区域有效的，低功率的，稳定的和数字可编程的。此外，本发明的方法和电路可以与许多放大器电路配置一起使用，包括具有电感和/或电阻退化的放大器。

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