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1. 发明申请

WO2014100511A2 INDEPENDENT GAIN CONTROL FOR MULTIPLE RECEIVE CIRCUITS CONCURRENTLY PROCESSING DIFFERENT TRANSMITTED SIGNALS 审中-公开
标题翻译：多个接收电路的独立增益控制同时处理不同的传输信号
公开(公告)号：WO2014100511A2
公开(公告)日：2014-06-26
申请号：PCT/US2013/076747
申请日：2013-12-19
申请人： QUALCOMM INCORPORATED
发明人： APARIN, Vladimir
IPC分类号： H03G3/30
CPC分类号： H03G3/00 , H03F3/193 , H03F3/68 , H03G3/3078
摘要： Techniques for simultaneously receiving multiple transmitted signals with independent gain control are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a low noise amplifier (LNA) and first and second receive circuits. The LNA amplifies a receiver input signal and provides (i) a first amplified signal for a first set of at least one transmitted signal being received and (ii) a second amplified signal for a second set of at least one transmitted signal being received. The first receive circuit scales the first amplified signal based on a first adjustable gain selected for the first set of transmitted signal(s). The second receive circuit scales the second amplified signal based on a second adjustable gain selected for the second set of transmitted signal(s). The first and second adjustable gains may be independently selected, e.g., based on the received powers of the transmitted signals.
摘要翻译：公开了用独立增益控制同时接收多个发射信号的技术。在示例性设计中，装置（例如，无线装置，集成电路等）包括低噪声放大器（LNA）和第一和第二接收电路。 LNA放大接收器输入信号，并且提供（i）被接收的至少一个发射信号的第一集合的第一放大信号，以及（ii）正被接收的至少一个发射信号的第二组的第二放大信号。第一接收电路基于为第一组发射信号选择的第一可调增益来缩放第一放大信号。第二接收电路基于为第二组发射信号选择的第二可调增益来缩放第二放大信号。第一和第二可调增益可以被独立地选择，例如，基于所发送信号的接收功率。

2. 发明申请

WO2014100044A1 CONCURRENT HYBRID MATCHING NETWORK 审中-公开
标题翻译：同步混合匹配网络
公开(公告)号：WO2014100044A1
公开(公告)日：2014-06-26
申请号：PCT/US2013/075878
申请日：2013-12-17
申请人： QUALCOMM INCORPORATED
发明人： LIN, Saihua
IPC分类号： H04B1/44
CPC分类号： H04B1/44 , H04B1/0458 , H04B1/18
摘要： A concurrent hybrid matching network is disclosed. In an exemplary embodiment, an apparatus includes a phase shifting coupler having a first terminal connected to an antenna, a second terminal connected to a receive signal path, and third terminal connected to a transmit signal path. The apparatus also includes at least one switch to configured to enable one of the receive signal path and the transmit signal path to communicate with the antenna.
摘要翻译：公开了并发混合匹配网络。在示例性实施例中，一种装置包括：相移耦合器，具有连接到天线的第一端子，连接到接收信号路径的第二端子以及连接到发射信号路径的第三端子。该装置还包括至少一个开关，用于使接收信号路径和发射信号路径之一能够与天线通信。

3. 发明申请

WO2014078742A2 ADJUSTABLE GAIN FOR MULTI-STACKED AMPLIFIERS 审中-公开
标题翻译：可调增益用于多层放大器
公开(公告)号：WO2014078742A2
公开(公告)日：2014-05-22
申请号：PCT/US2013/070434
申请日：2013-11-15
申请人： QUALCOMM INCORPORATED
发明人： CHA, Jeongwon , LEE, Chang-Ho , HADJICHRISTOS, Aristotele
IPC分类号： H03F1/02
CPC分类号： H03F1/0277 , H03F1/223 , H03F1/523 , H03F3/211 , H03F3/245 , H03F2200/61 , H03K17/102
摘要： Techniques for providing adjustable gain in an amplifier. In an aspect, a composite amplifier having adjustable gain includes a plurality of amplifiers coupled in parallel, wherein each of the amplifiers may be turned on or off to adjust the overall gain of the composite amplifier. Each amplifier may include an input transistor and at least two cascode transistors. To turn each amplifier off, the gate voltage of a second or lowermost cascode transistor coupled to the input transistor may be grounded, and the gate voltage of a first cascode transistor coupled to the output voltage may be coupled to a first turn-off voltage to reduce the drain-to-gate voltage drop across the first cascode transistor. Further aspects provide for decoupling a capacitor coupled to the gates of the cascode transistors from AC ground when the amplifier is turned off.
摘要翻译：
在放大器中提供可调增益的技术。一方面，具有可调节增益的复合放大器包括并联耦合的多个放大器，其中每个放大器可以被开启或关闭以调节复合放大器的整体增益。每个放大器可以包括输入晶体管和至少两个共源共栅晶体管。为了关闭每个放大器，耦合到输入晶体管的第二或最低级联晶体管的栅极电压可以接地，并且耦合到输出电压的第一级联晶体管的栅极电压可以耦合到第一关断电压以降低第一共源共栅晶体管两端的漏极至栅极压降。进一步的方面提供了当放大器关闭时将耦合到共源共栅晶体管的栅极的电容器与交流地断开。

4. 发明申请

WO2014075099A1 ANTENNA INTERFACE CIRCUITS WITH QUADPLEXERS 审中-公开
标题翻译：天线接口电路与四通道
公开(公告)号：WO2014075099A1
公开(公告)日：2014-05-15
申请号：PCT/US2013/069745
申请日：2013-11-12
申请人： QUALCOMM INCORPORATED
发明人： WEISSMAN, Haim M. , MANSOUR, Rimon E.
IPC分类号： H04B1/00 , H04B1/52
CPC分类号： H04B1/52 , H04B1/0057 , H04B1/006 , H04B1/0064 , H04B1/40
摘要： Techniques for supporting data transmission and reception on multiple bands for carrier aggregation are disclosed. In an exemplary design, an apparatus (e.g., a wireless device) includes first and second antenna interface circuits coupled to first and second antennas, respectively. The first antenna interface circuit includes a first quadplexer for first and second bands. The second antenna interface circuit includes a second quadplexer for the first and second bands. The first quadplexer may be a duplicate of the second quadplexer, which may simplify implementation. Each antenna interface circuit may further include a diplexer, a duplexer, a triplexer, another quadplexer, switches, etc. The first and second quadplexers may support data transmission and reception on two bands in a first band group. Other circuits in the first and second antenna interface circuits may support data transmission and/or reception on additional bands, possibly in one or more other band groups.
摘要翻译：公开了用于支持用于载波聚合的多个频带上的数据发送和接收的技术。在示例性设计中，装置（例如，无线装置）分别包括耦合到第一和第二天线的第一和第二天线接口电路。第一天线接口电路包括用于第一和第二频带的第一双工器。第二天线接口电路包括用于第一和第二频带的第二双工器。第一个双工器可能是第二个双工器的副本，这可以简化实现。每个天线接口电路还可以包括双工器，双工器，三工器，另一个双工器，开关等。第一和第二双工器可以支持在第一频带组中的两个频带上的数据传输和接收。第一和第二天线接口电路中的其他电路可以支持可能在一个或多个其他频带组中的附加频带上的数据传输和/或接收。

5. 发明申请

WO2014066421A1 AMPLIFIERS WITH NOISE SPLITTING 审中-公开
标题翻译：噪声分离放大器
公开(公告)号：WO2014066421A1
公开(公告)日：2014-05-01
申请号：PCT/US2013/066230
申请日：2013-10-22
申请人： QUALCOMM INCORPORATED
发明人： XU, Rui , CHANG, Li-Chung
IPC分类号： H03F3/19 , H03F1/22 , H03F3/72 , H03F3/21 , H03F1/26 , H03F3/24 , H03F3/68
CPC分类号： H03F1/26 , H03F1/223 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/68 , H03F3/72 , H03F2200/294 , H03F2200/421 , H03F2200/451 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/21145
摘要： Amplifiers with noise splitting to improve noise figure are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit, etc.) includes a plurality of amplifier circuits (550a, 550b, 550m) and at least one interconnection circuit (580a, 580b). The amplifier circuits (550a, 550b, 550m) receive an input radio frequency signal (RFin). The interconnection circuits (580a, 580b) are coupled between the plurality of amplifier circuits (550a, 550b, 550m). Each interconnection circuit (580a, 580b) is closed to short the outputs or internal nodes of two amplifier circuits coupled to that interconnection circuit (580a, 580b). The plurality of amplifier circuits (550a, 550b, 550m) may include a plurality of gain circuits (560a, 560b, 560m) coupled to a plurality of current buffers (570a, 570b, 570m), one gain circuit and one current buffer for each amplifier circuit.
摘要翻译：公开了具有噪声分离以改善噪声系数的放大器。在示例性设计中，装置（例如，无线装置，集成电路等）包括多个放大器电路（550a，550b，550m）和至少一个互连电路（580a，580b）。放大器电路（550a，550b，550m）接收输入射频信号（RFin）。互连电路（580a，580b）耦合在多个放大器电路（550a，550b，550m）之间。每个互连电路（580a，580b）关闭以使耦合到该互连电路（580a，580b）的两个放大器电路的输出或内部节点短路。多个放大器电路（550a，550b，550m）可以包括耦合到多个电流缓冲器（570a，570b，570m）的多个增益电路（560a，560b，560m），每个增益电路和一个电流缓冲器放大电路。

6. 发明申请

WO2014052925A1 CHANNEL CROSSTALK REMOVAL 审中-公开
标题翻译： CHANNEL CROSSTALK拆卸
公开(公告)号：WO2014052925A1
公开(公告)日：2014-04-03
申请号：PCT/US2013/062464
申请日：2013-09-27
申请人： QUALCOMM INCORPORATED
发明人： BAZARJANI, Seyfollah S. , MEHRABI, Arash
IPC分类号： H04S1/00 , H04R5/04
CPC分类号： H04R5/04 , H04S1/00 , H04S1/005
摘要： Techniques for removing crosstalk from a system, e.g., an audio system, having first and second (e.g., left and right) channels. In an aspect, first and second output voltages of corresponding first and second amplifiers are sampled during a calibration mode, in which one of the amplifiers is driven with a reference voltage, and the output of the other of the amplifiers is configured to have a high impedance. The sampled first and second output voltages may be digitized for processing by a processor to estimate a crosstalk removal function. The crosstalk removal function may then be multiplied with the input signals and added in a cross-channel manner to the first and second input signals prior to amplification to remove crosstalk from the system. In certain aspects, multiple reference voltages may be applied during the calibration mode to improve the estimate of the crosstalk removal function.
摘要翻译：用于从具有第一和第二（例如左和右）通道的系统（例如音频系统）去除串扰的技术。在一个方面，在校准模式期间对相应的第一和第二放大器的第一和第二输出电压进行采样，其中放大器之一以参考电压驱动，另一个放大器的输出被配置为具有高阻抗。采样的第一和第二输出电压可被数字化以供处理器处理以估计串扰消除功能。然后可以将串扰消除功能与输入信号相乘，并且在放大之前以交叉通道方式添加到第一和第二输入信号以从系统中去除串扰。在某些方面，可以在校准模式期间施加多个参考电压以改善串扰消除功能的估计。

7. 发明申请

WO2014026159A1 FRONT END PARALLEL RESONANT SWITCH 审中-公开
标题翻译：前端并联谐振开关
公开(公告)号：WO2014026159A1
公开(公告)日：2014-02-13
申请号：PCT/US2013/054418
申请日：2013-08-09
申请人： QUALCOMM INCORPORATED
发明人： SABOURI, Faramarz
IPC分类号： H01Q1/24 , H04B1/04
CPC分类号： H01Q1/50 , H01Q1/242 , H01Q9/14 , H03H2007/386 , H04B1/0057 , H04B1/006 , H04B1/0458
摘要： A front end parallel resonant switch (102) is disclosed. In an exemplary embodiment, an apparatus includes an inductor (L2) and a capacitor (CI) configured to couple a first RF transmission (112) to an antenna (110), and at least one switch (SWl, SW2, SW3) configured to connect the inductor (L2) to the capacitor (CI) to form a matching network when transmitting the first RF transmission (112) from the antenna (110), and to connect the inductor (L2) to capacitor (CI) to form a parallel resonant circuit when transmitting a second RF transmission (122) from the antenna (110). The resonant switch operates without the use of in-line mode switches to eliminate insertion loss associated with the use of in-line mode switches. The resonant switch also operates to control the loading effects of one transmit signal on the other transmit signal so as to reduce signal degeneration.
摘要翻译：公开了一种前端并联谐振开关（102）。在一个示例性实施例中，一种装置包括被配置为将第一RF传输（112）耦合到天线（110）的电感器（L2）和电容器（CI）以及至少一个开关（SW1，SW2，SW3）将电感器（L2）连接到电容器（CI）以在从天线（110）发送第一RF传输（112）时形成匹配网络，并将电感器（L2）连接到电容器（CI）以形成平行当从天线（110）发送第二RF传输（122）时，谐振电路。谐振开关在不使用在线模式开关的情况下工作，以消除与使用在线模式开关相关联的插入损耗。谐振开关还用于控制一个发射信号对另一个发射信号的负载效应，以便减少信号衰减。

8. 发明申请

WO2013185091A1 NEGATIVE VOLTAGE GENERATORS 审中-公开
标题翻译：负电压发电机
公开(公告)号：WO2013185091A1
公开(公告)日：2013-12-12
申请号：PCT/US2013/044810
申请日：2013-06-07
申请人： QUALCOMM INCORPORATED
发明人： CASSIA, Marco
IPC分类号： G11C5/14 , G11C16/30 , H02M3/07
CPC分类号： G11C5/145 , G11C5/147 , H02M3/07 , H02M2003/071 , H02M2003/072 , H02M2003/076
摘要： Negative voltage generators that do not require level shifters or AC coupling capacitors are disclosed. In an exemplary design, a negative voltage generator includes first, second, third and fourth switches, a capacitor, and a control circuit. The first switch is coupled between an input node and a first node. The second switch is coupled between the first node and circuit ground. The third switch is coupled between a second node and circuit ground. The fourth switch is coupled between the second node and an output node. The input node receives a positive voltage, and the output node provides a negative voltage. The capacitor is coupled between the first and second nodes. The control circuit (e.g., an inverter) generates a control signal having positive and negative voltage levels for the third switch using a negative voltage level at the second node.
摘要翻译：公开了不需要电平移位器或AC耦合电容器的负电压发生器。在示例性设计中，负电压发生器包括第一，第二，第三和第四开关，电容器和控制电路。第一开关耦合在输入节点和第一节点之间。第二开关耦合在第一节点和电路地之间。第三开关耦合在第二节点和电路地之间。第四开关耦合在第二节点和输出节点之间。输入节点接收正电压，输出节点提供负电压。电容器耦合在第一和第二节点之间。控制电路（例如，反相器）在第二节点处使用负电压电平产生具有用于第三开关的正和负电压电平的控制信号。

9. 发明申请

WO2013181114A1 SWITCHING AMPLIFIER WITH EMBEDDED HARMONIC REJECTION FILTER 审中-公开
标题翻译：具有嵌入式谐波抑制滤波器的开关放大器
公开(公告)号：WO2013181114A1
公开(公告)日：2013-12-05
申请号：PCT/US2013/042750
申请日：2013-05-24
申请人： QUALCOMM INCORPORATED
发明人： LIN, Saihua
IPC分类号： H03F3/217
CPC分类号： H03F3/38 , H03F3/217
摘要： A switching amplifier with an embedded harmonic rejection filter is disclosed. In an exemplary design, the switching amplifier includes a generator circuit and a plurality of output circuits. The generator circuit receives an input signal and a carrier signal at a carrier frequency and generates a plurality of versions of a drive signal associated with different delays. The drive signal may be a pulse width modulation (PWM) signal. The plurality of versions of the drive signal may be generated by delaying the carrier signal, or the input signal, or the drive signal. The output circuits receive the plurality of versions of the drive signal and provide an output signal. The output circuits have outputs that are coupled together and implement a finite impulse response (FIR) filter based on the plurality of versions of the drive signal. The FIR filter has a frequency response with zeros at harmonics of the carrier frequency.
摘要翻译：公开了一种具有嵌入式谐波抑制滤波器的开关放大器。在示例性设计中，开关放大器包括发生器电路和多个输出电路。发生器电路以载波频率接收输入信号和载波信号，并产生与不同延迟相关联的驱动信号的多个版本。驱动信号可以是脉冲宽度调制（PWM）信号。可以通过延迟载波信号或输入信号或驱动信号来产生驱动信号的多个版本。输出电路接收驱动信号的多个版本并提供输出信号。输出电路具有耦合在一起的输出，并且基于驱动信号的多个版本实现有限脉冲响应（FIR）滤波器。 FIR滤波器在载波频率的谐波处具有零的频率响应。

10. 发明申请

WO2013142782A2 LOW GM TRANSCONDUCTOR 审中-公开
标题翻译：低通GM TRANSCONDUCTOR
公开(公告)号：WO2013142782A2
公开(公告)日：2013-09-26
申请号：PCT/US2013/033482
申请日：2013-03-22
申请人： QUALCOMM INCORPORATED
发明人： MEHRABI, Arash , DEYERLE, IV, Thurman, S. , MIAO, Guoqing
IPC分类号： G05F1/56 , H03F3/45
CPC分类号： H03F3/45
摘要： Techniques for designing a transconductor configurable to have a low transconductance. In one aspect, a voltage to current conversion module is coupled to a 1:N current replication module. The voltage to current conversion module may be implemented as an operational amplifier configured with negative feedback to generate a current through a transistor, wherein such current is proportional to the difference between an input voltage and a common-mode reference. The 1:N current replication module is configured to mirror the generated current in another transistor, to a predetermined ratio, such that the output current is also proportional to the difference between the input voltage and the common-mode reference. In exemplary embodiments, the output stage driving the output current may be configured to operate as a Class A, Class B, or Class AB type amplifier.
摘要翻译：用于设计跨导体的技术，可配置为具有低跨导。在一个方面，电压到电流转换模块耦合到1：N电流复制模块。电压到电流转换模块可以被实现为配置有负反馈以产生通过晶体管的电流的运算放大器，其中这种电流与输入电压和共模参考之间的差成比例。 1：N电流复制模块被配置为将另一晶体管中产生的电流镜像到预定比例，使得输出电流也与输入电压和共模参考之间的差成比例。在示例性实施例中，驱动输出电流的输出级可被配置为作为A类，B类或AB类放大器工作。

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