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    Power-efficient, low-noise, and process/voltage/temperature (PVT)—insensitive regulator for a voltage-controlled oscillator (VCO)
    11.
    发明授权
    Power-efficient, low-noise, and process/voltage/temperature (PVT)—insensitive regulator for a voltage-controlled oscillator (VCO) 有权
    用于压控振荡器（VCO）的功率高效，低噪声，过程/电压/温度（PVT） - 敏感稳压器

    公开(公告)号：US09547324B2

    公开(公告)日：2017-01-17

    申请号：US14244321

    申请日：2014-04-03

    Applicant: QUALCOMM Incorporated

    Inventor： Mohammad Bagher Vahid Far ,  Abbas Komijani ,  Chan Hong Park

    IPC: G05F3/26 ,  G05F3/02

    CPC classification number: G05F3/02 ,  G05F3/262

    Abstract: Certain aspects of the present disclosure provide voltage regulating circuits which are power efficient, low noise, and substantially insensitive to changes in process technology, power supply voltage, and temperature. Such circuits may be used to provide the regulated voltage for a voltage-controlled oscillator (VCO), for example, as found in a radio frequency front end (RFFE). One example voltage regulating circuit generally includes a current source configured to supply or sink a reference current and a current mirror having a bias branch and a main branch, wherein the bias branch is connected with the current source, wherein the main branch includes a source follower to provide the regulated voltage, and wherein the reference current is available at a node for the regulated voltage.

    Abstract translation: 本公开的某些方面提供了功率有效，低噪声并且对工艺技术，电源电压和温度变化基本上不敏感的电压调节电路。 可以使用这样的电路来为例如在射频前端（RFFE）中找到的压控振荡器（VCO）提供调节电压。 一个示例性电压调节电路通常包括被配置为提供或吸收参考电流的电流源和具有偏压支路和主支路的电流镜，其中偏压支路与电流源连接，其中主支路包括源极跟随器 以提供调节电压，并且其中参考电流在用于调节电压的节点处可用。

    MULTI-BAND AMPLIFIER
    13.
    发明申请
    MULTI-BAND AMPLIFIER 有权
    多功能放大器

    公开(公告)号：US20160126983A1

    公开(公告)日：2016-05-05

    申请号：US14532309

    申请日：2014-11-04

    Applicant: QUALCOMM Incorporated

    Inventor： Abbas Komijani ,  Mohammad Bagher Vahid Far ,  Amirpouya Kavousian ,  Alireza Khalili ,  Yashar Rajavi

    IPC: H04B1/04 ,  H04W72/04 ,  H04B7/04

    CPC classification number: H04B1/0064 ,  H04B1/16 ,  H04B5/0031 ,  H04B5/0087 ,  H04B5/0093

    Abstract: A multi-band amplifier may operate in a first frequency band and a second frequency band. The multi-band amplifier may include a first amplifier, a second amplifier, and a coupler. The coupler may couple a signal, such as a communication signal, to a selected amplifier. In some embodiments, the coupler may include one or more inductive elements to couple the signal to the first or the second amplifier. In some embodiments, the inductive elements may include a balun.

    Abstract translation: 多频带放大器可以在第一频带和第二频带中操作。 多频带放大器可以包括第一放大器，第二放大器和耦合器。 耦合器可以将诸如通信信号的信号耦合到所选择的放大器。 在一些实施例中，耦合器可以包括一个或多个感应元件以将信号耦合到第一或第二放大器。 在一些实施例中，感应元件可包括平衡 - 不平衡转换器。

    Spur cancellation using auxiliary synthesizer
    15.
    发明授权
    Spur cancellation using auxiliary synthesizer 有权
    使用辅助合成器进行排斥

    公开(公告)号：US09160584B1

    公开(公告)日：2015-10-13

    申请号：US14603127

    申请日：2015-01-22

    Applicant: QUALCOMM Incorporated

    Inventor： Amirpouya Kavousian ,  Yashar Rajavi ,  Richard Tzewei Chang ,  Alireza Khalili ,  Mohammad Bagher Vahid Far ,  Abbas Komijani

    IPC: H04L25/08 ,  H04L25/03 ,  H03F3/19

    CPC classification number: H04L25/08 ,  H03F1/345 ,  H03F3/19 ,  H03F3/245 ,  H03G3/3042 ,  H04L25/03

    Abstract: A method and apparatus are disclosed for mitigating a frequency spur included with a transmitter output signal from a wireless device. For at least some embodiments, the wireless device may include an auxiliary synthesizer to generate a spur cancellation signal to be summed with the transmitter output signal to cancel or reduce the frequency spur. The auxiliary synthesizer may also generate an auxiliary clock signal to demodulate a received communication signal. In some embodiments, the transmitter output signal may be looped back to a receiver of the wireless device to determine whether the frequency spur is reduced below a threshold. Data from the receiver may be used to modify the spur cancellation signal.

    Abstract translation: 公开了一种用于减轻来自无线设备的发射机输出信号所包含的频率支路的方法和装置。 对于至少一些实施例，无线设备可以包括辅助合成器，以产生要与发射机输出信号相加的杂散消除信号，以消除或减少频率突发。 辅助合成器还可以产生辅助时钟信号以解调所接收的通信信号。 在一些实施例中，发射机输出信号可以环回到无线设备的接收机，以确定频率突发是否减小到低于阈值。 来自接收机的数据可以用于修改杂散消除信号。

    TWO-DELAY VOLTAGE-CONTROLLED-OSCILLATOR WITH WIDE TUNING RANGE
    16.
    发明申请
    TWO-DELAY VOLTAGE-CONTROLLED-OSCILLATOR WITH WIDE TUNING RANGE 有权
    具有宽调谐范围的双延迟电压控制振荡器

    公开(公告)号：US20140002198A1

    公开(公告)日：2014-01-02

    申请号：US13651340

    申请日：2012-10-12

    Applicant: QUALCOMM INCORPORATED

    Inventor： Emmanouil TERROVITIS ,  Abbas Komijani

    IPC: H03K3/03

    CPC classification number: H03K3/03 ,  H03K2005/00071

    Abstract: An oscillator is disclosed that can generate an oscillation signal using a latch and two delay elements. For some embodiments, the oscillator includes an SR latch, a first delay element, and a second delay element. The SR latch has a first input, a second input, a first output, and a second output. The first delay element is coupled between the first output and the first input of the SR latch. The second delay element is coupled between the second output and the second input of the SR latch. For some embodiments, the first and second delay elements include a programmable pull-up circuit that allows the charging current to be adjusted in discrete amounts, and include a programmable capacitor circuit that allows the capacitance value to be adjusted in discrete amounts.

    Abstract translation: 公开了一种使用锁存器和两个延迟元件产生振荡信号的振荡器。 对于一些实施例，振荡器包括SR锁存器，第一延迟元件和第二延迟元件。 SR锁存器具有第一输入，第二输入，第一输出和第二输出。 第一延迟元件耦合在第一输出和SR锁存器的第一输入端之间。 第二延迟元件耦合在SR锁存器的第二输出端和第二输入端之间。 对于一些实施例，第一和第二延迟元件包括允许以离散量调节充电电流的可编程上拉电路，并且包括允许以离散量调整电容值的可编程电容器电路。

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