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1. 发明申请

WO2010071876A1 CLASS AB AMPLIFIER WITH RESISTIVE LEVEL-SHIFTING CIRCUITRY 审中-公开
标题翻译：具有电阻式电平转换电路的AB类放大器
公开(公告)号：WO2010071876A1
公开(公告)日：2010-06-24
申请号：PCT/US2009/068942
申请日：2009-12-21
申请人： QUALCOMM Incorporated , WANG, Cheng-Han , PAN, Tzu-Wang , BROCKENBROUGH, Roger
发明人： WANG, Cheng-Han , PAN, Tzu-Wang , BROCKENBROUGH, Roger
IPC分类号： H03F1/30 , H03F3/45
CPC分类号： H03F3/45183 , H03F1/307
摘要： A class AB amplifier with resistive level-shifting circuitry is described. In one exemplary design, the class AB amplifier includes an input stage, a resistive level-shifting stage, a class AB output stage, and a bias circuit. The input stage receives an input signal and provides a first drive signal. The resistive level-shifting stage receives the first drive signal and provides a second drive signal. The output stage receives the first and second drive signals and provides an output signal. The bias circuit generates a bias voltage for the resistive level-shifting stage to obtain a desired quiescent current for the output stage. In one exemplary design, the resistive level-shifting stage includes a transistor and a resistor. The transistor receives the bias voltage and provides the second drive signal. The resistor is coupled to the transistor and provides a voltage drop between the first and second drive signals.
摘要翻译：描述了具有阻性电平移位电路的AB类放大器。在一个示例性设计中，AB类放大器包括输入级，电阻电平转换级，AB类输出级和偏置电路。输入级接收输入信号并提供第一驱动信号。电阻电平转换级接收第一驱动信号并提供第二驱动信号。输出级接收第一和第二驱动信号并提供输出信号。偏置电路产生用于电阻电平移位级的偏置电压，以获得用于输出级的期望的静态电流。在一个示例性设计中，电阻电平移位级包括晶体管和电阻器。晶体管接收偏置电压并提供第二驱动信号。电阻器耦合到晶体管并且在第一和第二驱动信号之间提供电压降。

2. 发明申请

WO2010048232A1 TUNABLE FILTERS WITH LOWER RESIDUAL SIDEBAND 审中-公开
标题翻译：具有较低残留边的TUNABLE过滤器
公开(公告)号：WO2010048232A1
公开(公告)日：2010-04-29
申请号：PCT/US2009/061385
申请日：2009-10-20
申请人： QUALCOMM INCORPORATED , WANG, Cheng-Han , BROCKENBROUGH, Roger , PAN, Tzu-wang
发明人： WANG, Cheng-Han , BROCKENBROUGH, Roger , PAN, Tzu-wang
IPC分类号： H03H11/12 , H03F3/45 , H04B1/10
CPC分类号： H03H11/1291
摘要： An apparatus includes first (220a) and second (220b) filters and a bandwidth control circuit (270). The first filter (220a) operates as part of a first oscillator in a first mode and filters a first input signal and provides a first output signal in a second mode. The second filter (220b) operates as part of a second oscillator in the first mode and filters a second input signal and provides a second output signal in the second mode. The bandwidth control circuit (270) adjusts the bandwidth of the first and second filters (220a, 220b) in the first mode, e.g., adjusts the oscillation frequency of each oscillator to obtain a target bandwidth for an associated filter. The apparatus may further include first and second gain control circuits (250a, 250b). Each gain control circuit (250a, 250b) may vary the amplitude of an oscillator signal from an associated oscillator and/or set a gain of an associated filter in the first mode.
摘要翻译：一种装置包括第一（220a）和第二（220b）滤波器和带宽控制电路（270）。第一滤波器（220a）在第一模式中作为第一振荡器的一部分进行操作，并且对第一输入信号进行滤波并在第二模式中提供第一输出信号。第二滤波器（220b）在第一模式中作为第二振荡器的一部分工作，并且对第二输入信号进行滤波并在第二模式中提供第二输出信号。带宽控制电路（270）在第一模式中调整第一和第二滤波器（220a，220b）的带宽，例如调整每个振荡器的振荡频率以获得相关滤波器的目标带宽。该装置还可以包括第一和第二增益控制电路（250a，250b）。每个增益控制电路（250a，250b）可以改变来自相关振荡器的振荡器信号的幅度和/或在第一模式中设置相关联的滤波器的增益。

3. 发明申请

WO2010121183A1 HYBRID MULTI-BAND RECEIVER 审中-公开
标题翻译：混合多带接收机
公开(公告)号：WO2010121183A1
公开(公告)日：2010-10-21
申请号：PCT/US2010/031464
申请日：2010-04-16
申请人： QUALCOMM Incorporated , ZHAO, Liang , BROCKENBROUGH, Roger , KOHLMANN, Michael , CONROY, Cormac S. , SAVLA, Anup
发明人： ZHAO, Liang , BROCKENBROUGH, Roger , KOHLMANN, Michael , CONROY, Cormac S. , SAVLA, Anup
IPC分类号： H04B1/00 , H04B7/08
CPC分类号： H04B1/0075 , H04B1/0007 , H04B1/005 , H04B1/0064
摘要： The subject matter disclosed herein relates to a system and method for processing wireless signals received from one or more communications systems. In a particular implementation, one or more signals received from one or more communication systems such as a GNSS may be processed in two or more separate wireless signal receiver paths and combined in baseband to share one analog-to-digital converter.
摘要翻译：本文公开的主题涉及用于处理从一个或多个通信系统接收的无线信号的系统和方法。在特定实现中，从一个或多个通信系统（诸如GNSS）接收到的一个或多个信号可以在两个或更多个分离的无线信号接收机路径中进行处理，并在基带中组合以共享一个模 - 数转换器。

4. 发明申请

WO2009036222A2 OFFSET CORRECTION FOR PASSIVE MIXERS 审中-公开
标题翻译：被动混合器的偏差校正
公开(公告)号：WO2009036222A2
公开(公告)日：2009-03-19
申请号：PCT/US2008/076087
申请日：2008-09-11
申请人： QUALCOMM Incorporated , ZHUO, Wei , BROCKENBROUGH, Roger , PENG, Solti
发明人： ZHUO, Wei , BROCKENBROUGH, Roger , PENG, Solti
IPC分类号： H03D7/14
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0043 , H03D2200/0047
摘要： A downconversion mixer includes a configurable gate or bulk bias voltage to allow calibration and correction of device offsets. Calibration may be performed on the configurable bias voltages to minimize IM2 distortion in the mixer. The techniques have minimal impact on voltage headroom, impose no requirement for a signal path to be phase-matched with a calibration path, and are particularly well-suited for passive mixers.
摘要翻译：下变频混频器包括可配置的栅极或体偏置电压，以允许校准和校正器件偏移。可以对可配置的偏置电压进行校准，以最小化混频器中的IM2失真。这些技术对电压净空的影响最小，不要求将信号路径与校准路径进行相位匹配，特别适用于被动混频器。

5. 发明申请

WO2010042763A1 CLOCK CLEAN-UP PHASE-LOCKED LOOP (PLL) 审中-公开
标题翻译：时钟清除锁相环（PLL）
公开(公告)号：WO2010042763A1
公开(公告)日：2010-04-15
申请号：PCT/US2009/060062
申请日：2009-10-08
申请人： QUALCOMM INCORPORATED , LIN, I-Hsiang , BROCKENBROUGH, Roger
发明人： LIN, I-Hsiang , BROCKENBROUGH, Roger
IPC分类号： H03L7/22 , H04B1/00
CPC分类号： H03L7/07 , H03L7/081 , H03L7/0995 , H03L7/197 , H03L7/22 , H03L7/23 , H04B1/0039
摘要： A clock clean-up phase-locked loop (PLL) that may reduce spurs and improve performance of a receiver is described. In one exemplary design, an integrated circuit includes a PLL and an analog-to-digital converter (ADC). The PLL receives a first clock signal generated with a fractional divider ratio and having spurs due to abrupt frequency jumps. The first clock signal may be generated by a fractional-N frequency synthesizer external to the integrated circuit. The PLL generates a second clock signal with an integer divider ratio and having reduced spurs. The ADC digitizes an analog baseband signal based on the second clock signal and provides digital samples. The integrated circuit may further include a low noise amplifier (LNA), which may observe less spurs coupled via the substrate of the integrated circuit due to the use of the PLL to clean up the first clock signal.
摘要翻译：描述了可以减少杂散并提高接收机性能的时钟清理锁相环（PLL）。在一个示例性设计中，集成电路包括PLL和模数转换器（ADC）。 PLL接收以分数除数比产生的第一个时钟信号，并且由于突然的跳频而产生杂散。第一时钟信号可以由集成电路外部的分数N频率合成器产生。 PLL产生具有整数分频比的第二个时钟信号，并具有减少的杂散。 ADC根据第二个时钟信号数字化模拟基带信号，并提供数字采样。集成电路还可以包括低噪声放大器（LNA），由于使用PLL来清理第一时钟信号，可以观察到较小的经由集成电路的衬底耦合的杂散。

6. 发明申请

WO2010006079A3 METHOD OF ACHIEVING HIGH SELECTIVITY IN RECEIVER RF FRONT-ENDS 审中-公开
公开(公告)号：WO2010006079A3
公开(公告)日：2010-01-14
申请号：PCT/US2009/049976
申请日：2009-07-08
申请人： QUALCOMM INCORPORATED , SAVLA, Anup , BROCKENBROUGH, Roger
发明人： SAVLA, Anup , BROCKENBROUGH, Roger
IPC分类号： H03F3/45 , H03F3/191
摘要： According to some embodiments, an apparatus may comprise an amplifier, wherein the amplifier comprises: an output stage formed of a positive output terminal providing a positive output voltage and a negative output terminal providing a negative output voltage; a load tank coupled in parallel with the output stage and configured to filter signals received at the amplifier; and a negative resistance block coupled in parallel with the output stage and the load tank.

7. 发明申请

WO2009148879A1 CALIBRATION USING NOISE POWER 审中-公开
标题翻译：使用噪声校正功率
公开(公告)号：WO2009148879A1
公开(公告)日：2009-12-10
申请号：PCT/US2009/045138
申请日：2009-05-26
申请人： QUALCOMM INCORPORATED , CONROY, Cormac, S. , SHEYNBLAT, Leonid , SAVLA, Anup , BROCKENBROUGH, Roger
发明人： CONROY, Cormac, S. , SHEYNBLAT, Leonid , SAVLA, Anup , BROCKENBROUGH, Roger
IPC分类号： H04B17/00
CPC分类号： H04B17/21
摘要： A method calibrates a spread spectrum receiver having a received signal strength below a noise floor. The method includes estimating an input noise power, and measuring a noise power output from the receiver. The method also includes comparing the estimated input noise power with the measured output noise power to determine at least one calibration value. The method further includes calibrating the receiver based upon the at least one calibration value.
摘要翻译：一种校准具有低于本底噪声的接收信号强度的扩频接收机。该方法包括估计输入噪声功率，以及测量从接收机输出的噪声功率。该方法还包括将估计的输入噪声功率与所测量的输出噪声功率进行比较以确定至少一个校准值。该方法还包括基于至少一个校准值来校准接收器。

8. 发明申请

WO2009086016A1 NAVIGATION RECEIVER 审中-公开
标题翻译：导航接收器
公开(公告)号：WO2009086016A1
公开(公告)日：2009-07-09
申请号：PCT/US2008/087539
申请日：2008-12-18
申请人： QUALCOMM Incorporated , ZHAO, Liang , KOHLMANN, Michael , CONFLITTI, Paul A. , BROCKENBROUGH, Roger , CONROY, Cormac S. , SHEYNBLAT, Leonid , ROWITCH, Douglas
发明人： ZHAO, Liang , KOHLMANN, Michael , CONFLITTI, Paul A. , BROCKENBROUGH, Roger , CONROY, Cormac S. , SHEYNBLAT, Leonid , ROWITCH, Douglas
IPC分类号： G01S1/00
CPC分类号： G01S19/36 , G01S19/25 , G01S19/32 , G01S19/33
摘要： The subject matter disclosed herein relates to a system and method for processing navigation signals received from multiple global navigation satellite systems (GNSS'). In a particular implementation, signals received from multiple GNSS' may be processed in a single receiver channel.
摘要翻译：本文公开的主题涉及用于处理从多个全球导航卫星系统（GNSS'）接收的导航信号的系统和方法。在特定实现中，从多个GNSS接收的信号可以在单个接收机信道中进行处理。

9. 发明申请

WO2013033650A1 WIRELESS DEVICE WITH 3-D ANTENNA SYSTEM 审中-公开
标题翻译：具有3-D天线系统的无线设备
公开(公告)号：WO2013033650A1
公开(公告)日：2013-03-07
申请号：PCT/US2012/053545
申请日：2012-08-31
申请人： QUALCOMM INCORPORATED , LEE, Cheol-Woong , TASSOUDJI, Mohammad A. , BROCKENBROUGH, Roger
发明人： LEE, Cheol-Woong , TASSOUDJI, Mohammad A. , BROCKENBROUGH, Roger
IPC分类号： H01Q3/24 , H01Q3/30 , H01Q9/04 , H01Q1/22
CPC分类号： H01Q3/30 , H01Q1/2291 , H01Q1/243 , H01Q3/24 , H01Q9/0407
摘要： Techniques for improving coverage of an antenna system are disclosed. In an aspect, a wireless device (310) includes a 3-D antenna system (320) to improve coverage and enhance performance. The 3-D antenna system (320) includes antenna elements (332, 342) formed on multiple planes pointing in different spatial directions. Antenna elements formed on the multiple planes are associated with different antenna beams (350, 360), which can provide a larger line-of-sight (LOS, 352, 362) coverage for the wireless device. Beamforming may be performed for the antennas on a given plane to further improve LOS coverage (352, 362). Non-LOS (NLOS, 354) coverage may also improve since antenna beams pointing in different spatial directions may result in reflected signals of higher power levels due to better signal reflection for some antenna beams. The antenna system may be used for 60 GHz mm-waves in IEEE 802. 11ad WPANs.
摘要翻译：公开了一种改善天线系统覆盖范围的技术。在一方面，无线设备（310）包括用于改善覆盖并提高性能的3-D天线系统（320）。 3-D天线系统（320）包括形成在指向不同空间方向的多个平面上的天线元件（332,342）。形成在多个平面上的天线元件与不同的天线波束（350,360）相关联，这可以为无线设备提供更大的视距（LOS，352,362）覆盖。可以对给定平面上的天线执行波束成形以进一步改善LOS覆盖（352,362）。非LOS（NLOS，354）的覆盖范围也可能得到改善，因为指向不同空间方向的天线波束可能导致较高功率电平的反射信号，这是由于某些天线波束的信号反射更好。天线系统可用于IEEE 802.11a WPA中的60 GHz毫米波。

10. 发明申请

WO2006128075A1 FILTER CALIBRATION 审中-公开
标题翻译：过滤器校准
公开(公告)号：WO2006128075A1
公开(公告)日：2006-11-30
申请号：PCT/US2006/020636
申请日：2006-05-25
申请人： QUALCOMM INCORPORATED , ERDOGAN, Ozan, E. , RUDELL, Jacques, C. , BROCKENBROUGH, Roger
发明人： ERDOGAN, Ozan, E. , RUDELL, Jacques, C. , BROCKENBROUGH, Roger
IPC分类号： H03H11/12
CPC分类号： H03H11/0472 , H03J2200/08
摘要： Calibrating a filter (114,116) is disclosed. The filter (114,116) is reconfigured as an oscillator during calibration. Switches (swl,sw2 ) and/or other implementations of reconfiguring a filter are used to reconfigure the negative feedback loop of the filter to a positive feedback loop. The oscillation parameters are then measured (106, ( 300 ) to adjust the components of the filter (cl-c4) to achieve an oscillation that corresponds to a desired filter characteristic.
摘要翻译：公开了校准过滤器（114,116）。滤波器（114,116）在校准期间被重新配置为振荡器。使用重新配置滤波器的开关（swl，sw2）和/或其他实现方式将滤波器的负反馈环路重新配置为正反馈回路。然后测量振荡参数（106，（300））以调整滤波器（cl-c4）的分量，以实现对应于所需滤波器特性的振荡。

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