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1. 发明申请

WO2012158815A3 RECEIVER WITH TRANSMIT SIGNAL CANCELLATION 审中-公开
标题翻译：接收发送信号消除
公开(公告)号：WO2012158815A3
公开(公告)日：2013-03-28
申请号：PCT/US2012038172
申请日：2012-05-16
申请人： QUALCOMM INC , SAHOTA GURKANWAL S
发明人： SAHOTA GURKANWAL S
IPC分类号： H04B1/52
CPC分类号： H04B1/525
摘要： A receiver with transmit (TX) signal cancellation is disclosed. In an exemplary design, an apparatus includes an adjustment circuit, a transformer (e.g., a balun), and a low noise amplifier (LNA). The adjustment circuit receives a version of a TX signal and provides an adjusted TX signal, which may have adjustable amplitude and/or phase. The transformer receives the adjusted TX signal and a receive (RX) signal including a leaked TX signal, attenuates the leaked TX signal in the RX signal based on the adjusted TX signal, and provides an output RX signal. The TX signal may be transmitted via a primary antenna, and the RX signal may be received via a diversity antenna. The LNA receives the output RX signal and provides an amplified RX signal. The adjustment circuit detects remaining TX signal in the amplified RX signal and adjusts the amplitude and/or phase of the adjusted TX signal to reduce the remaining TX signal.
摘要翻译：公开了具有发送（TX）信号消除的接收机。在示例性设计中，装置包括调整电路，变压器（例如，平衡 - 不平衡转换器）和低噪声放大器（LNA）。调整电路接收TX信号的版本，并提供调整后的TX信号，其可以具有可调幅度和/或相位。变压器接收调整后的TX信号和包含泄漏的TX信号的接收（RX）信号，根据经调整的TX信号衰减RX信号中泄露的TX信号，并提供输出RX信号。可以经由主天线发送TX信号，并且可以经由分集天线接收RX信号。 LNA接收输出RX信号并提供放大的RX信号。调整电路检测放大的RX信号中的剩余TX信号，并调整调整后的TX信号的幅度和/或相位，以减少剩余的TX信号。

2. 发明申请

WO2007120281A2 DIGITAL TRANSMITTERS FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：无线通信数字发射机
公开(公告)号：WO2007120281A2
公开(公告)日：2007-10-25
申请号：PCT/US2006/061124
申请日：2006-11-20
申请人： QUALCOMM INCORPORATED , SAHOTA, Gurkanwal S.
发明人： SAHOTA, Gurkanwal S.
CPC分类号： H04L27/361 , H03C5/00 , H03D13/00 , H03F1/0205 , H03F3/217 , H03F3/245 , H03F2200/321 , H03F2200/331 , H03F2200/336 , H03F2200/451 , H03F2200/456
摘要： Digital transmitters having improved characteristics are described. In one design of a digital transmitter, a first circuit block receives inphase and quadrature signals, performs conversion from Cartesian to polar coordinates, and generates magnitude and phase signals. A second circuit block (which may include a delta-sigma modulator or a digital filter) generates an envelope signal based on the magnitude signal. A third circuit block generates a phase modulated signal based on the phase signal. The third circuit block may include a phase modulating phase locked loop (PLL), a voltage controlled oscillator (VCO), a saturating buffer, and so on. A fourth circuit block (which may include one or more exclusive-OR gates or an amplifier with multiple gain states) generates a digitally modulated signal based on the envelope signal and the phase modulated signal. A fifth circuit block (which may include a class D amplifier and/or a power amplifier) amplifies the digitally modulated signal and generates an RF output signal.
摘要翻译：描述了具有改进特性的数字发射机。在数字发射机的一种设计中，第一电路块接收同相和正交信号，执行从笛卡尔坐标转换为极坐标，并产生幅度和相位信号。第二电路块（其可以包括Δ-Σ调制器或数字滤波器）基于幅度信号产生包络信号。第三电路块基于相位信号产生相位调制信号。第三电路块可以包括相位调制锁相环（PLL），压控振荡器（VCO），饱和缓冲器等。第四电路块（其可以包括一个或多个异或门或具有多个增益状态的放大器）基于包络信号和相位调制信号产生数字调制信号。第五电路块（其可以包括D类放大器和/或功率放大器）放大数字调制信号并产生RF输出信号。

3. 发明申请

WO2012158815A2 RECEIVER WITH TRANSMIT SIGNAL CANCELLATION 审中-公开
标题翻译：接收发送信号消除
公开(公告)号：WO2012158815A2
公开(公告)日：2012-11-22
申请号：PCT/US2012/038172
申请日：2012-05-16
申请人： QUALCOMM INCORPORATED , SAHOTA, Gurkanwal, S.
发明人： SAHOTA, Gurkanwal, S.
IPC分类号： H04B1/52
CPC分类号： H04B1/525
摘要： A receiver with transmit (TX) signal cancellation is disclosed. In an exemplary design, an apparatus includes an adjustment circuit, a transformer (e.g., a balun), and a low noise amplifier (LNA). The adjustment circuit receives a version of a TX signal and provides an adjusted TX signal, which may have adjustable amplitude and/or phase. The transformer receives the adjusted TX signal and a receive (RX) signal including a leaked TX signal, attenuates the leaked TX signal in the RX signal based on the adjusted TX signal, and provides an output RX signal. The TX signal may be transmitted via a primary antenna, and the RX signal may be received via a diversity antenna. The LNA receives the output RX signal and provides an amplified RX signal. The adjustment circuit detects remaining TX signal in the amplified RX signal and adjusts the amplitude and/or phase of the adjusted TX signal to reduce the remaining TX signal.
摘要翻译：公开了具有发送（TX）信号消除的接收机。在示例性设计中，装置包括调整电路，变压器（例如，平衡 - 不平衡变换器）和低噪声放大器（LNA）。调整电路接收TX信号的版本，并提供调整后的TX信号，其可以具有可调的幅度和/或相位。变压器接收调整后的TX信号和包含泄漏的TX信号的接收（RX）信号，根据经调整的TX信号衰减RX信号中泄露的TX信号，并提供输出RX信号。可以经由主天线发送TX信号，并且可以经由分集天线接收RX信号。 LNA接收输出RX信号并提供放大的RX信号。调整电路检测放大的RX信号中的剩余TX信号，并调整调整后的TX信号的幅度和/或相位，以减少剩余的TX信号。

4. 发明申请

WO2011071953A1 PHASE LOCKED LOOP WITH DIGITAL COMPENSATION FOR ANALOG INTEGRATION 审中-公开
标题翻译：用于模拟集成的数字补偿的相位锁定环
公开(公告)号：WO2011071953A1
公开(公告)日：2011-06-16
申请号：PCT/US2010/059337
申请日：2010-12-07
申请人： QUALCOMM Incorporated , DUNWORTH, Jeremy D. , BALLANTYNE, Gary J. , ASURI, Bhushan S. , GENG, Jifeng , SAHOTA, Gurkanwal S.
发明人： DUNWORTH, Jeremy D. , BALLANTYNE, Gary J. , ASURI, Bhushan S. , GENG, Jifeng , SAHOTA, Gurkanwal S.
IPC分类号： H03L7/093
CPC分类号： H03L7/08 , H03L7/093
摘要： A phase locked loop (PLL) device includes a digital differentiator configured to differentiate a digital loop signal to at least partially compensate for the integration of an analog current signal by an analog integrator. A digital to analog converter (DAC) includes a current source output stage that generates the analog current signal based on an digital input signal, The analog integrator integrates the analog current signal to generate a voltage control signal for controlling a voltage controlled oscillator (VCO).
摘要翻译：锁相环（PLL）装置包括数字微分器，其被配置为区分数字环路信号以至少部分地补偿模拟积分器对模拟电流信号的积分。数模转换器（DAC）包括基于数字输入信号产生模拟电流信号的电流源输出级。模拟积分器对模拟电流信号进行积分以产生用于控制压控振荡器（VCO）的电压控制信号，。

5. 发明申请

WO2007048113A3 DIVERSITY RECEIVER FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2007048113A3
公开(公告)日：2007-04-26
申请号：PCT/US2006/060082
申请日：2006-10-19
申请人： QUALCOMM INCORPORATED , SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
发明人： SAMPSON, Wesley , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal S.
IPC分类号： H04B1/40 , H04B7/08
摘要： A diversity receiver capable of receiving a CDMA system (e.g., a W-CDMA system) and a TDMA system (e.g., a GSM system), with receive diversity for at least one system, is described. W-CDMA is often referred to as UMTS. In one design, the diversity receiver includes a first receiver for GSM and a second receiver for UMTS. The first receiver may be implemented with one receiver design, may be spec-compliant for GSM, and may also support UMTS. The second receiver may be implemented with another receiver design, may be spec-compliant for UMTS, and may also support GSM. The first receiver may include a lowpass filter having a bandwidth that is adjustable for GSM and UMTS. The second receiver may include a bandpass filter used to attenuate a transmit frequency range for UMTS. Each receiver may include circuit blocks that are used for both GSM and UMTS.

6. 发明申请

WO2007033264A1 MULTI-BAND RADIO FREQUENCY MODULATOR 审中-公开
标题翻译：多频无线电频率调制器
公开(公告)号：WO2007033264A1
公开(公告)日：2007-03-22
申请号：PCT/US2006/035699
申请日：2006-09-12
申请人： QUALCOMM INCORPORATED , SAHOTA, Gurkanwal, S.
发明人： SAHOTA, Gurkanwal, S.
IPC分类号： H04B1/44
CPC分类号： H04B1/406 , H04B1/0082
摘要： Techniques are described that allow operation according to two or more different communication modes in a single modulation path of a variable radio frequency (RF) modulator within a multi-mode wireless communication device (WCD). The multi-mode WCD may detect a service signal from a base station within a wireless communication system and select a communication mode in which to operate based on the communication mode of the detected service signal. The techniques described herein enable a digital controller within the RF modulator to set parameters of variable components along the single modulation path of the RF modulator based on the selected communication mode. In this way, the single modulation path of the variable RF modulator may be set to process a baseband signal from a user of the WCD according to the communication mode in which the multi-mode WCD is operating.
摘要翻译：描述了允许在多模式无线通信设备（WCD）内的可变射频（RF）调制器的单个调制路径中根据两个或多个不同通信模式的操作的技术。多模式WCD可以从无线通信系统内的基站检测服务信号，并根据检测到的服务信号的通信模式选择要进行操作的通信模式。这里描述的技术使得RF调制器内的数字控制器能够基于所选择的通信模式来设置沿着RF调制器的单个调制路径的可变分量的参数。以这种方式，可以将可变RF调制器的单个调制路径设置为根据多模WCD正在操作的通信模式处理来自WCD的用户的基带信号。

7. 发明申请

WO2011022553A1 PROTECTION CIRCUIT FOR POWER AMPLIFIER 审中-公开
标题翻译：功率放大器保护电路
公开(公告)号：WO2011022553A1
公开(公告)日：2011-02-24
申请号：PCT/US2010/046025
申请日：2010-08-19
申请人： QUALCOMM INCORPORATED , SU, Wenjun , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S. , CASSIA, Marco
发明人： SU, Wenjun , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S. , CASSIA, Marco
IPC分类号： H03F1/52 , H03F3/24 , H03G3/30 , G01R19/04 , H04W52/08
CPC分类号： H03F1/52 , H03F3/24 , H03F2200/435 , H03F2200/78 , H03G3/3042 , H04B2001/0408
摘要： Techniques for protecting a power amplifier (PA) are described. In an exemplary design, an apparatus includes a PA module (310) to amplify an input RF signal and provide an output RF signal and a protection circuit (320) to control a transmitter gain to protect the PA module against high peak voltage. In an exemplary design, the protection circuit (329) includes a set of comparators (370) to quantize an analog input signal and provide digital comparator output signals used to adjust the transmitter gain. In another exemplary design, the protection circuit reduces and increases the transmitter gain with hysteresis. In yet another exemplary design, the protection circuit has faster response to rising amplitude than falling amplitude of the output RF signal. The hysteresis and/or the different rise and fall responses may allow the protection circuit to avoid toggling the transmitter gain under severe load mismatch and to handle time-varying envelope due to amplitude modulation.
摘要翻译：描述了用于保护功率放大器（PA）的技术。在示例性设计中，装置包括用于放大输入RF信号并提供输出RF信号的PA模块（310）和用于控制发射机增益以保护PA模块免受高峰值电压的保护电路（320）。在示例性设计中，保护电路（329）包括一组比较器（370），用于量化模拟输入信号并提供用于调整发射机增益的数字比较器输出信号。在另一示例性设计中，保护电路通过滞后减小并增加发射机增益。在又一示例性设计中，保护电路比对输出RF信号的下降幅度具有对振幅上升的响应更快。迟滞和/或不同的上升和下降响应可以允许保护电路避免在严重负载不匹配的情况下切换发射机增益，并且由于幅度调制来处理时变包络。

8. 发明申请

WO2010135711A1 ADAPTIVE PARAMETRIC POWER AMPLIFIER PROTECTION CIRCUIT 审中-公开
标题翻译：自适应参数功率放大器保护电路
公开(公告)号：WO2010135711A1
公开(公告)日：2010-11-25
申请号：PCT/US2010/035863
申请日：2010-05-21
申请人： QUALCOMM INCORPORATED , HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S.
发明人： HADJICHRISTOS, Aristotele , SAHOTA, Gurkanwal, S.
IPC分类号： H04B1/04 , H03F1/52
CPC分类号： H04B1/0466 , H03F1/523 , H03F3/24 , H03F2200/447 , H03F2200/468
摘要： A device including a gain control element coupled prior to or within a radio frequency (RF) power amplifier (PA) with an adaptive parametric PA protection circuit is described. In an exemplary embodiment, the device includes a gain control element coupled prior to a radio frequency power amplifier with a power stage with corresponding transistor breakdown threshold values, having an adaptive parametric PA protection circuit configured to receive at least one power stage drain-source voltage parameter value, at least one power stage drain-gate voltage parameter value, and at least one power stage drain-source current parameter value, and including an adaptive parametric PA protection circuit having a first section for processing the parameter values and a second section for generating a gain correction signal to adjust the gain control element with optimal power added efficiency (PAE) for the power stage within the corresponding transistor breakdown threshold values.
摘要翻译：描述了在具有自适应参数PA保护电路的射频（RF）功率放大器（PA）之前或之内耦合的增益控制元件的装置。在示例性实施例中，该装置包括增益控制元件，该增益控制元件在具有相应的晶体管击穿阈值的功率级的射频功率放大器之前耦合，具有自适应参数PA保护电路，该自适应参数PA保护电路被配置为接收至少一个功率级漏 - 源电压参数值，至少一个功率级漏极栅极电压参数值和至少一个功率级漏源电流参数值，并且包括具有用于处理参数值的第一部分的自适应参数PA保护电路和用于产生增益校正信号，以在相应的晶体管击穿阈值内对功率级的最佳功率附加效率（PAE）调节增益控制元件。

9. 发明申请

WO2008067256A1 HIGH RESOLUTION DIGITALLY CONTROLLED OSCILLATOR 审中-公开
标题翻译：高分辨率数字控制振荡器
公开(公告)号：WO2008067256A1
公开(公告)日：2008-06-05
申请号：PCT/US2007/085541
申请日：2007-11-26
申请人： QUALCOMM INCORPORATED , SUN, Bo , JAYARAMAN, Arun , BALLANTYNE, Gary J. , SAHOTA, Gurkanwal S.
发明人： SUN, Bo , JAYARAMAN, Arun , BALLANTYNE, Gary J. , SAHOTA, Gurkanwal S.
IPC分类号： H03L7/00
CPC分类号： H03L7/10 , H03B5/1215 , H03B5/1228 , H03B5/1265 , H03L7/099
摘要： This disclosure describes designs for a digitally controlled oscillator (DCO). The DCO can overcome many of the shortcomings associated with conventional voltage controlled oscillators (VCOs), and may improve wireless communication devices. The described DCO may improve the frequency synthesis process, reduce noise in a wireless communication device, and allow for simplification of various components of the device.
摘要翻译：本公开描述了数字控制振荡器（DCO）的设计。 DCO可以克服与常规压控振荡器（VCO）相关的许多缺点，并且可以改进无线通信设备。所描述的DCO可以改善频率合成过程，减少无线通信设备中的噪声，并且允许简化设备的各种组件。

10. 发明申请

WO2007120281A3 DIGITAL TRANSMITTERS FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：无线通信数字发射机
公开(公告)号：WO2007120281A3
公开(公告)日：2008-05-02
申请号：PCT/US2006061124
申请日：2006-11-20
申请人： QUALCOMM INC , SAHOTA GURKANWAL S
发明人： SAHOTA GURKANWAL S
IPC分类号： H04L27/36
CPC分类号： H04L27/361 , H03C5/00 , H03D13/00 , H03F1/0205 , H03F3/217 , H03F3/245 , H03F2200/321 , H03F2200/331 , H03F2200/336 , H03F2200/451 , H03F2200/456
摘要： Digital transmitters having improved characteristics are described. In one design of a digital transmitter, a first circuit block receives inphase and quadrature signals, performs conversion from Cartesian to polar coordinates, and generates magnitude and phase signals. A second circuit block (which may include a delta-sigma modulator or a digital filter) generates an envelope signal based on the magnitude signal. A third circuit block generates a phase modulated signal based on the phase signal. The third circuit block may include a phase modulating phase locked loop (PLL), a voltage controlled oscillator (VCO), a saturating buffer, and so on. A fourth circuit block (which may include one or more exclusive-OR gates or an amplifier with multiple gain states) generates a digitally modulated signal based on the envelope signal and the phase modulated signal. A fifth circuit block (which may include a class D amplifier and/or a power amplifier) amplifies the digitally modulated signal and generates an RF output signal.
摘要翻译：描述了具有改进特性的数字发射机。在数字发射机的一种设计中，第一电路块接收同相和正交信号，执行从笛卡尔到极坐标的转换，并产生幅度和相位信号。第二电路块（其可以包括Δ-Σ调制器或数字滤波器）基于幅度信号产生包络信号。第三电路块基于相位信号产生相位调制信号。第三电路块可以包括相位调制锁相环（PLL），压控振荡器（VCO），饱和缓冲器等。第四电路块（其可以包括一个或多个异或门或具有多个增益状态的放大器）基于包络信号和相位调制信号生成数字调制信号。第五电路块（其可以包括D类放大器和/或功率放大器）放大数字调制信号并产生RF输出信号。

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