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31. 发明申请

WO2010135228A3 COMPARATOR WITH HYSTERESIS 审中-公开
公开(公告)号：WO2010135228A3
公开(公告)日：2010-11-25
申请号：PCT/US2010/035086
申请日：2010-05-17
申请人： QUALCOMM INCORPORATED , SUDJIAN, Douglas
发明人： SUDJIAN, Douglas
IPC分类号： H03K5/24
摘要： Techniques for providing a comparator incorporating amplitude hysteresis. In an exemplary embodiment, a current offset stage is coupled to a comparator having a folded cascode architecture. The current offset stage offsets the current generated from an input stage to delay switching of the comparator output to implement amplitude hysteresis. In an exemplary embodiment, rail-to-rail input voltages may be accommodated by providing dual NMOS and PMOS input stages. In another exemplary embodiment, the amplitude hysteresis may be controlled by an adjustable threshold voltage. In yet another exemplary embodiment, a constant transconductance gm bias circuit may be provided to maintain the stability of the threshold voltage across input common-mode voltage and/or other variations.

32. 发明申请

WO2010132870A1 RECEIVER WITH BALANCED I/Q TRANSFORMER 审中-公开
标题翻译：接收器与平衡I / Q变压器
公开(公告)号：WO2010132870A1
公开(公告)日：2010-11-18
申请号：PCT/US2010/035079
申请日：2010-05-17
申请人： QUALCOMM Incorporated , CHANG, Li-Chung , BHAGAT, Maulin P. , LEE, Hanil , SRIDHARA, Ravi
发明人： CHANG, Li-Chung , BHAGAT, Maulin P. , LEE, Hanil , SRIDHARA, Ravi
IPC分类号： H03D7/14
CPC分类号： H03D7/1466 , H03D7/1458 , H03D7/165 , H03D2200/0082
摘要： A receiver with a balanced I/Q transformer is described. In an exemplary design, the receiver includes an LNA that amplifies a received RF signal and provides a single-ended RF signal to the balanced I/Q transformer. The balanced I/Q transformer includes at least one primary coil and first and second secondary coils. The first secondary coil is magnetically coupled to the at least one primary coil and provides a first differential RF signal to a first mixer. The second secondary coil is magnetically coupled to the at least one primary coil and provides a second differential RF signal to a second mixer. The first and second mixers downconvert the first and second differential RF signals with I and Q LO signals, respectively, and provide differential I and Q downconverted signals. The primary and secondary coils may be fabricated on two conductive layers of an integrated circuit.
摘要翻译：描述了具有平衡I / Q变压器的接收机。在示例性设计中，接收机包括放大接收到的RF信号并向平衡I / Q变换器提供单端RF信号的LNA。平衡I / Q变压器包括至少一个初级线圈和第一和第二次级线圈。第一次级线圈磁耦合到至少一个初级线圈，并向第一混频器提供第一差分RF信号。第二次级线圈磁耦合到至少一个初级线圈，并将第二差分RF信号提供给第二混频器。第一和第二混频器分别用I和Q LO信号下变频第一和第二差分RF信号，并提供差分I和Q下变频信号。初级和次级线圈可以制造在集成电路的两个导电层上。

33. 发明申请

WO2010118161A2 WIRELESS POWER TRANSMISSION SCHEDULING 审中-公开
标题翻译：无线电力传输调度
公开(公告)号：WO2010118161A2
公开(公告)日：2010-10-14
申请号：PCT/US2010/030278
申请日：2010-04-07
申请人： QUALCOMM INCORPORATED , LI, Peng
发明人： LI, Peng
IPC分类号： H02J7/00
CPC分类号： H02J7/0027 , H02J7/025 , H02J50/12 , H02J50/80 , H02J50/90 , H04B5/0037 , H04B5/0081
摘要： Exemplary embodiments are directed to wireless power transmission scheduling. A method may include scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices positioned within a charging region of a wireless charger based on at least one attribute associated with at least one of the wireless charger and at least one chargeable device of the plurality of chargeable devices.
摘要翻译：示例性实施例涉及无线功率传输调度。一种方法可以包括基于与无线充电器和至少一个无线充电器中的至少一个相关联的至少一个属性来调度无线电力到位于无线充电器的充电区域内的多个可计费装置的一个或多个可充电装置所述多个可充电装置的可充电装置。

34. 发明申请

WO2010108030A3 COMMON-GATE COMMON-SOURCE AMPLIFIER 审中-公开
公开(公告)号：WO2010108030A3
公开(公告)日：2010-09-23
申请号：PCT/US2010/027855
申请日：2010-03-18
申请人： QUALCOMM INCORPORATED , LI, Xiaoyong , APTE, Rahul A.
发明人： LI, Xiaoyong , APTE, Rahul A.
IPC分类号： H03F1/26 , H03F3/193 , H03F3/45
摘要： Techniques for integrating a common-source and common-gate amplifier topology in a single amplifier design. In one aspect, an input voltage is provided to both a common- source amplifier and a common-gate amplifier. The output voltages of the common- source amplifier and the common-gate amplifier are provided to a difference block for generating a single-ended voltage proportional to the difference between the output voltages. When applied to the design of, e.g., low-noise amplifiers (LNA's), the disclosed techniques may offer improved noise performance over the prior art.

35. 发明申请

WO2010108029A1 TRANSCONDUCTANCE BIAS CIRCUIT, AMPLIFIER AND METHOD 审中-公开
标题翻译：交叉偏置电路，放大器和方法
公开(公告)号：WO2010108029A1
公开(公告)日：2010-09-23
申请号：PCT/US2010/027853
申请日：2010-03-18
申请人： QUALCOMM INCORPORATED , CAO, Zhiheng
发明人： CAO, Zhiheng
IPC分类号： H03F1/30 , H03F3/193
CPC分类号： H03F1/301 , H03F3/193 , H03F2200/453
摘要： Methods, circuits and apparatus for biasing an amplifier to maintain consistent operational characteristics over variations in fabrication processes and operational temperature conditions are disclosed. A bias is determined by first comparing output voltages of replica circuits of the amplifier during an offset canceling phase. The output voltages are differently driven by an offset induced by a first reference current and the offset is canceled in response to the first comparing step. The output voltages are secondly compared during a calibration phase and a calibration bias current is adjusted in response to the second comparing step. The amplifier bias is determined based on the calibration bias current. The process is periodically repeated in response to operational variations.
摘要翻译：公开了用于偏置放大器以保持与制造工艺和操作温度条件的变化相一致的操作特性的方法，电路和装置。通过首先在偏移消除阶段比较放大器的复制电路的输出电压来确定偏置。由第一参考电流引起的偏移不同地驱动输出电压，并且响应于第一比较步骤抵消偏移。在校准阶段期间二次比较输出电压，并且响应于第二比较步骤调整校准偏置电流。放大器偏置根据校准偏置电流确定。响应于操作变化周期性地重复该过程。

36. 发明申请

WO2010093969A2 WIRELESS POWER AND WIRELESS COMMUNICATION FOR ELECTRONIC DEVICES 审中-公开
标题翻译：电子设备的无线电力和无线通信
公开(公告)号：WO2010093969A2
公开(公告)日：2010-08-19
申请号：PCT/US2010/024156
申请日：2010-02-12
申请人： QUALCOMM INCORPORATED , HILLAN, John , KIRBY, Miles, A. , OZAKI, Ernest, T. , HEILSBERG, Stuart , MANGAN, Michael, J. , FRANKLAND, Stephen
发明人： HILLAN, John , KIRBY, Miles, A. , OZAKI, Ernest, T. , HEILSBERG, Stuart , MANGAN, Michael, J. , FRANKLAND, Stephen
IPC分类号： H04B5/00
CPC分类号： H04B5/00
摘要： Exemplary embodiments are directed to wireless electronic devices. A method may comprise receiving a wireless signal with an antenna and indentifying one of a wireless charging module and a near-field communication module to which the received signal is associated. The method may further comprise conveying the received signal to the identified one of the wireless charging module and the near-field communication module.
摘要翻译：示例性实施例涉及无线电子设备。方法可以包括用天线接收无线信号，并且识别接收信号与之相关联的无线充电模块和近场通信模块之一。该方法还可以包括将接收的信号传送到无线充电模块和近场通信模块中的所识别的一个。

37. 发明申请

WO2010093961A1 FREQUENCY SYNTHESIZER WITH MULTIPLE TUNING LOOPS 审中-公开
标题翻译：频率合成器具有多个调谐功能
公开(公告)号：WO2010093961A1
公开(公告)日：2010-08-19
申请号：PCT/US2010/024146
申请日：2010-02-12
申请人： QUALCOMM INCORPORATED , FAGG, Russell, John
发明人： FAGG, Russell, John
IPC分类号： H03L7/185 , H03L7/197 , H03L7/23
CPC分类号： H03L7/23 , H03L7/185 , H03L7/1976 , H03L2207/12
摘要： A frequency synthesizer with multiple tuning loops, e.g., a fine tuning loop and a coarse tuning loop, is described. The fine tuning loop may operate over a limited tuning range and may have fine frequency resolution. The coarse tuning loop may operate over a wide tuning range and may have coarse frequency resolution. The fine tuning loop may receive a reference signal at a reference frequency and generate a fine tuning signal at a first frequency adjustable in fine steps. The coarse tuning loop may receive the reference signal, generate an output signal at an output frequency, and generate a coarse tuning signal at a second frequency based on the output signal and the fine tuning signal. The second frequency may be adjustable in coarse steps, e.g., in integer multiples of the reference frequency. The output frequency may be determined based on the first frequency and the second frequency.
摘要翻译：描述了具有多个调谐环路的频率合成器，例如微调环路和粗调谐环路。微调环路可以在有限的调谐范围内工作，并且可以具有精细的频率分辨率。粗调谐环路可以在宽的调谐范围内工作，并且可以具有粗略的频率分辨率。微调环路可以以参考频率接收参考信号，并以精细的步骤产生可调节的第一频率的微调信号。粗调谐环路可以接收参考信号，以输出频率产生输出信号，并且基于输出信号和微调信号产生第二频率的粗调谐信号。第二频率可以在粗略步骤中调节，例如以参考频率的整数倍。可以基于第一频率和第二频率来确定输出频率。

38. 发明申请

WO2010068926A1 TECHNIQUES FOR IMPROVING AMPLIFIER LINEARITY 审中-公开
标题翻译：改善放大器线性度的技术
公开(公告)号：WO2010068926A1
公开(公告)日：2010-06-17
申请号：PCT/US2009/067771
申请日：2009-12-11
申请人： QUALCOMM Incorporated , LI, Xiaoyong , LEE, Sang-Oh , CONROY, Cormac S.
发明人： LI, Xiaoyong , LEE, Sang-Oh , CONROY, Cormac S.
IPC分类号： H03F1/22 , H03F1/32 , H03F3/19 , H03F3/21
CPC分类号： H03F1/223 , H03F1/3205 , H03F3/19 , H03F3/211 , H03F2200/168 , H03F2200/294 , H03F2200/456 , H03F2200/492
摘要： Techniques for improving the linearity of a cascode amplifier. In an exemplary embodiment, an auxiliary common-gate amplifier (M5) is provided in parallel with the principal cascode branch (M2). The auxiliary common-gate amplifier (M5) samples a cascoded node (Xl) in the principal cascode branch (M2). The auxiliary common-gate amplifier (M5) generates a current which, when combined with the current generated by the principal cascode branch (M2), cancels a distortion component to generate an output current with improved linearity characteristics. In an exemplary embodiment, a phase shifting network (310) couples the cascoded node (X1) to the auxiliary common-gate amplifier (M5), and may include, e.g., a capacitor coupled to an inductor. Techniques for improving the linearity of a cascode amplifier. In an exemplary embodiment, an auxiliary common-gate amplifier (M5) is provided in parallel with the principal cascode branch (M2). The auxiliary common-gate amplifier (M5) samples a cascoded node (X1) in the principal cascode branch (M2). The auxiliary common-gate amplifier (M5) generates a current which, when combined with the current generated by the principal cascode branch (M2), cancels a distortion component to generate an output current with improved linearity characteristics.
摘要翻译：提高共源共栅放大器线性度的技术。在一个示例性实施例中，与主级联共模分支（M2）并联提供辅助共门放大器（M5）。辅助共栅放大器（M5）在主级联支路（M2）中采样级联的节点（X1）。辅助共栅放大器（M5）产生电流，当与主级联支路（M2）产生的电流组合时，消除失真分量以产生具有改善的线性特性的输出电流。在示例性实施例中，相移网络（310）将级联节点（X1）耦合到辅助公共门放大器（M5），并且可以包括例如耦合到电感器的电容器。提高共源共栅放大器线性度的技术。在一个示例性实施例中，与主级联共模分支（M2）并联提供辅助共门放大器（M5）。辅助共栅放大器（M5）对主级联支路（M2）中的级联节点（X1）采样。辅助共栅放大器（M5）产生电流，当与主级联支路（M2）产生的电流组合时，消除失真分量以产生具有改善的线性特性的输出电流。

39. 发明申请

WO2010060118A3 RETROFITTING WIRELESS POWER AND NEAR-FIELD COMMUNICATION IN ELECTRONIC DEVICES 审中-公开
公开(公告)号：WO2010060118A3
公开(公告)日：2010-05-27
申请号：PCT/US2009/068579
申请日：2009-12-17
申请人： QUALCOMM Incorporated , KIRBY, Miles, A. , GROB, Matthew, S. , OZAKI, Ernest, T. , TONCICH, Stanley, S. , COOK, Nigel, P. , KINSEY, Stanley , HILLAN, John , FRANKLAND, Steve
发明人： KIRBY, Miles, A. , GROB, Matthew, S. , OZAKI, Ernest, T. , TONCICH, Stanley, S. , COOK, Nigel, P. , KINSEY, Stanley , HILLAN, John , FRANKLAND, Steve
IPC分类号： H02J7/00 , H02J7/02 , H02J17/00 , H01M10/46
摘要： Exemplary embodiments are directed to retrofitting existing electronic devices for wireless power transfer and near-field communication. Retrofitting circuitry includes an antenna for receiving a signal from an external source, and conversion circuitry for converting the signal to be used by an electronic device. The antenna and conversion circuitry are configured to retrofit to the electronic device, where the electronic device did not originally include the antenna or conversion circuitry. The antenna and conversion circuitry may be configured to receive and convert the signal to generate wireless power for the electronic device. The antenna and the conversion circuitry may also be configured to enable the electronic device to send and receive near-field communication data.

40. 发明申请

WO2009158537A1 DISCRETE TIME MULTI-RATE ANALOG FILTER 审中-公开
标题翻译：离散时间多速率模拟滤波器
公开(公告)号：WO2009158537A1
公开(公告)日：2009-12-30
申请号：PCT/US2009/048716
申请日：2009-06-25
申请人： QUALCOMM INCORPORATED , BURKE, Joseph, Patrick
发明人： BURKE, Joseph, Patrick
IPC分类号： H03H15/02
CPC分类号： H03H15/023
摘要： A discrete time analog filter suitable for use in a receiver and other electronics devices is described herein. In one exemplary design, an apparatus may include a transconductance amplifier, a sampler, and a discrete time analog filter. The transconductance amplifier may amplify a voltage input signal and provide an analog signal. The sampler may sample the analog signal and provide analog samples at a sampling rate. The discrete time analog filter may filter the analog samples and provide filtered analog samples either at the sampling rate for a non-decimating filter or at an output rate that is lower than the sampling rate for a decimating filter. The discrete time analog filter may also filter the analog samples with either equal weights for a rectangular filter or at least two different weights for a weighted filter.
摘要翻译：本文描述了适用于接收机和其它电子设备的离散时间模拟滤波器。在一个示例性设计中，装置可以包括跨导放大器，采样器和离散时间模拟滤波器。跨导放大器可以放大电压输入信号并提供模拟信号。采样器可以对模拟信号进行采样，并以采样速率提供模拟采样。离散时间模拟滤波器可以对模拟样本进行滤波，并以非抽取滤波器的采样速率或低于抽取滤波器的采样率的输出速率提供滤波后的模拟采样。离散时间模拟滤波器还可以对于矩形滤波器或对于加权滤波器具有至少两个不同的权重，以相同的权重对模拟样本进行滤波。

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