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    Signal generator with image rejection
    1.
    发明授权
    Signal generator with image rejection 有权
    具有镜像抑制功能的信号发生器

    公开(公告)号：US09548774B2

    公开(公告)日：2017-01-17

    申请号：US14625973

    申请日：2015-02-19

    Applicant: QUALCOMM Incorporated

    Inventor： Saihua Lin ,  Jianlei Shi

    IPC: H04B1/10 ,  H04B1/00 ,  H03B21/01

    CPC classification number: H04B1/1018 ,  H03B21/01 ,  H03B27/00 ,  H03B2200/0078 ,  H04B1/0082

    Abstract: A method and apparatus are disclosed for generating a quadrature signal that may be used to modulate and/or demodulate communication signals transmitted between communication devices. A quadrature signal generator may include a control block, a mixer, and a filter. The control block may generate a reference signal and a filter control signal based on an input clock signal. The mixer may generate a mixer output signal based on the input clock signal and the reference signal. The filter, controlled by the filter control signal, may filter the mixer output signal to suppress a band of frequencies within the mixer output signal.

    Abstract translation: 公开了一种用于产生可用于调制和/或解调在通信设备之间传输的通信信号的正交信号的方法和装置。 正交信号发生器可以包括控制块，混频器和滤波器。 控制块可以基于输入时钟信号产生参考信号和滤波器控制信号。 混频器可以基于输入时钟信号和参考信号产生混频器输出信号。 由滤波器控制信号控制的滤波器可以对混频器输出信号进行滤波，以抑制混频器输出信号内的频带。

    Amplifier with reduced harmonic distortion
    2.
    发明授权
    Amplifier with reduced harmonic distortion 有权
    具有减少谐波失真的放大器

    公开(公告)号：US09391651B1

    公开(公告)日：2016-07-12

    申请号：US14680756

    申请日：2015-04-07

    Applicant: QUALCOMM Incorporated

    Inventor： Saihua Lin ,  Chao Lu ,  Cheng-Han Wang

    IPC: H04B1/04

    CPC classification number: H04B1/0475 ,  H03F1/223 ,  H03F1/3205 ,  H03F1/3223 ,  H03F3/193 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/336 ,  H03F2200/451 ,  H04B2001/0408

    Abstract: A method and apparatus are disclosed for a configurable amplifier. When operating in a first operating mode, the configurable amplifier may amplify a communication signal and may cancel or attenuate a second harmonic component associated with the communication signal. When operating in a second operating mode, the configurable amplifier may amplify the communication signal without cancelling or attenuating the second harmonic component associated with the communication signal.

    Abstract translation: 公开了一种用于可配置放大器的方法和装置。 当在第一操作模式下操作时，可配置放大器可以放大通信信号，并且可以取消或衰减与通信信号相关联的二次谐波分量。 当在第二操作模式下操作时，可配置放大器可放大通信信号，而不消除或衰减与通信信号相关联的二次谐波分量。

    Switchable supply and tunable load impedance power amplifier
    3.
    发明授权
    Switchable supply and tunable load impedance power amplifier 有权
    可切换电源和可调负载阻抗功率放大器

    公开(公告)号：US09543900B1

    公开(公告)日：2017-01-10

    申请号：US14744894

    申请日：2015-06-19

    Applicant: QUALCOMM Incorporated

    Inventor： Saihua Lin ,  Jonghoon Choi

    IPC: H04B1/04 ,  H01Q11/12 ,  H03F1/02 ,  H04W4/00 ,  H04W52/38 ,  H03F3/21 ,  H03F3/19 ,  H04W84/12 ,  H04W88/06

    CPC classification number: H03F1/0205 ,  H03F3/19 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21106 ,  H04B1/0458 ,  H04W4/80 ,  H04W52/38 ,  H04W84/12 ,  H04W88/06

    Abstract: A transceiver configured to transmit data in a plurality of operating modes including a Wi-Fi mode and two or more different Bluetooth power modes, the transceiver comprising: a first power amplifier configured to amplify Bluetooth signals; a second power amplifier configured to amplify Wi-Fi signals; an antenna coupled to the second power amplifier; and a tunable load circuit, coupled between the first amplifier and the second amplifier, configured to provide a different load impedance for each of the plurality of operating modes, the tunable load circuit consisting of: two impedance paths coupled in parallel between output terminals of the first and second amplifiers; and a number of shunt paths coupled between the tunable load circuit and ground potential.

    Abstract translation: 收发器，被配置为以包括Wi-Fi模式和两个或更多个不同的蓝牙功率模式的多种操作模式发送数据，所述收发器包括：配置成放大蓝牙信号的第一功率放大器; 配置成放大Wi-Fi信号的第二功率放大器; 耦合到所述第二功率放大器的天线; 以及耦合在所述第一放大器和所述第二放大器之间的可调负载电路，被配置为为所述多个工作模式中的每一个提供不同的负载阻抗，所述可调负载电路由以下两个组成：两个阻抗路径并联耦合在 第一和第二放大器; 以及耦合在可调负载电路和地电位之间的多个并联路径。

    AMPLIFIER WITH INTEGRAL NOTCH FILTER
    4.
    发明申请
    AMPLIFIER WITH INTEGRAL NOTCH FILTER 有权
    具有整体插孔滤波器的放大器

    公开(公告)号：US20160233843A1

    公开(公告)日：2016-08-11

    申请号：US14617579

    申请日：2015-02-09

    Applicant: QUALCOMM Incorporated

    Inventor： Alan Ngar Loong Chan ,  Saihua Lin

    IPC: H03G3/30 ,  H03F1/56 ,  H03F3/193 ,  H04B1/10

    CPC classification number: H03G3/3042 ,  H03F1/3205 ,  H03F1/565 ,  H03F3/191 ,  H03F3/193 ,  H03F2200/165 ,  H03F2200/213 ,  H03F2200/216 ,  H03F2200/225 ,  H03F2200/267 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/492 ,  H04B1/1036

    Abstract: An amplifier is disclosed that may include a filter, such as a notch-filter, to filter an output signal provided by the amplifier. The included filter may suppress and/or reduce a gain of the amplifier for a particular range of frequencies. In one embodiment, a frequency response of the filter may be determined by one or more reactive components included within the amplifier. In at least one embodiment, the amplifier may include two or more mutual inductors to reduce the gain of the amplifier when operated at or near a predetermined frequency. In another embodiment, the amplifier may include one or more variable capacitors that may enable the frequency response of the filter to be changed and/or modified.

    Abstract translation: 公开了一种放大器，其可以包括滤波器，例如陷波滤波器，以对放大器提供的输出信号进行滤波。 所包括的滤波器可以在特定频率范围内抑制和/或降低放大器的增益。 在一个实施例中，滤波器的频率响应可以由包括在放大器内的一个或多个无功分量来确定。 在至少一个实施例中，放大器可以包括两个或更多个互感器，以在预定频率处或接近预定频率下操作时减小放大器的增益。 在另一个实施例中，放大器可以包括一个或多个可变电容器，其可使得能够改变和/或修改滤波器的频率响应。

    Adjusting phase imbalance between in-phase (I) and quadrature-phase (Q) signals
    8.
    发明授权
    Adjusting phase imbalance between in-phase (I) and quadrature-phase (Q) signals 有权
    调整同相（I）和正交相（Q）信号之间的相位不平衡

    公开(公告)号：US09065491B2

    公开(公告)日：2015-06-23

    申请号：US13791605

    申请日：2013-03-08

    Applicant: QUALCOMM Incorporated

    Inventor： Cheol-Woong Lee ,  Saihua Lin ,  Roger Brockenbrough

    IPC: H04B1/04 ,  H04B1/10 ,  H04B1/02 ,  H03D3/00 ,  H04L27/36 ,  H04L27/38

    CPC classification number: H04B1/02 ,  H03C2200/0041 ,  H03C2200/0058 ,  H03D3/009 ,  H03D2200/0045 ,  H03D2200/0082 ,  H04L27/364 ,  H04L27/3863

    Abstract: In a particular embodiment, a method of generating in-phase (I) and quadrature-phase (Q) signals includes generating a first I output signal based on a first I input signal, a second I input signal, a first Q input signal, and a second Q input signal. The method further includes generating a second I output signal based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A first Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. A second Q output signal is generated based on the first I input signal, the second I input signal, the first Q input signal, and the second Q input signal. According to further embodiments, an apparatus is disclosed.

    Abstract translation: 在特定实施例中，产生同相（I）和正交相位（Q）信号的方法包括基于第一I输入信号，第二I输入信号，第一Q输入信号产生第一I输出信号， 和第二Q输入信号。 该方法还包括基于第一I输入信号，第二I输入信号，第一Q输入信号和第二Q输入信号产生第二I输出信号。 基于第一I输入信号，第二I输入信号，第一Q输入信号和第二Q输入信号产生第一Q输出信号。 基于第一I输入信号，第二I输入信号，第一Q输入信号和第二Q输入信号产生第二Q输出信号。 根据另外的实施例，公开了一种装置。

    CONCURRENT HYBRID MATCHING NETWORK
    9.
    发明申请
    CONCURRENT HYBRID MATCHING NETWORK 有权
    同步混合匹配网络

    公开(公告)号：US20140170995A1

    公开(公告)日：2014-06-19

    申请号：US13717277

    申请日：2012-12-17

    Applicant: QUALCOMM INCORPORATED

    Inventor： Saihua Lin

    IPC: H04B1/44

    CPC classification number: H04B1/44 ,  H04B1/0458 ,  H04B1/18

    Abstract: 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.

    Abstract translation: 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。

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