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    Mobile Device Including a Power Amplifier with Selectable Voltage Supply
    1.
    发明申请
    Mobile Device Including a Power Amplifier with Selectable Voltage Supply 有权
    包括具有可选择电源的功率放大器的移动设备

    公开(公告)号：US20140043098A1

    公开(公告)日：2014-02-13

    申请号：US13584104

    申请日：2012-08-13

    Applicant: Dmitriy Rozenblit

    Inventor： Dmitriy Rozenblit

    IPC: H03F1/02

    CPC classification number: H03F1/0222 ,  H03F1/0238 ,  H03F1/025 ,  H03F3/245 ,  H03F2200/336 ,  H03F2200/405 ,  H03F2200/408 ,  H03F2200/507 ,  H03F2200/511 ,  H03F2200/516

    Abstract: The present application discloses various implementations of a mobile device including a power amplifier (PA) having a driving stage coupled to an output stage. The driving stage is configured to be selectably powered by one of a first voltage supply and a second voltage supply. The output stage is configured to be powered by the second voltage supply. The mobile device further includes a voltage supply selection switch configured to selectably power the driving stage by the second voltage supply when an output power of the PA is less than or equal to a threshold power.

    Abstract translation: 本申请公开了包括具有耦合到输出级的驱动级的功率放大器（PA）的移动设备的各种实施方式。 驱动级被配置为可选择地由第一电压源和第二电压源之一供电。 输出级配置为由第二电源供电。 移动设备还包括电压供应选择开关，其被配置为当PA的输出功率小于或等于阈值功率时，通过第二电压供应器可选择地为驱动级供电。

    Systems and Methods for Power Sensing and Antenna Tuning
    2.
    发明申请
    Systems and Methods for Power Sensing and Antenna Tuning 有权
    功率传感和天线调谐的系统和方法

    公开(公告)号：US20130157598A1

    公开(公告)日：2013-06-20

    申请号：US13328518

    申请日：2011-12-16

    Applicant: Dmitriy ROZENBLIT ,  Masoud Kahrizi

    Inventor： Dmitriy ROZENBLIT ,  Masoud Kahrizi

    IPC: H04W52/00 ,  H04W88/02

    CPC classification number: H04W52/52 ,  H04B17/101 ,  H04B17/102 ,  H04B17/103

    Abstract: Systems and methods are provided for detecting forward power sent to an antenna and reflected power reflected back from the antenna. Embodiments of the present invention provide systems and methods for measuring forward and reflected power and controlling the amount of power supplied to the antenna responsive to these measurements. Embodiments of the present invention enable the power sent to the antenna to be dynamically altered when antenna impendence changes (e.g., when the antenna gets too close to another object).

    Abstract translation: 提供了用于检测发送到天线的正向功率和从天线反射回的反射功率的系统和方法。 本发明的实施例提供了用于测量前向和反射功率并根据这些测量来控制提供给天线的功率量的系统和方法。 当天线阻抗改变时（例如，当天线太靠近另一个物体时），本发明的实施例使能发送到天线的功率被动态地改变。

    Systems and methods for implementing a harmonic rejection mixer
    3.
    发明授权
    Systems and methods for implementing a harmonic rejection mixer 有权
    用于实现谐波抑制混频器的系统和方法

    公开(公告)号：US08165538B2

    公开(公告)日：2012-04-24

    申请号：US12145599

    申请日：2008-06-25

    Applicant: Rajasekhar Pullela ,  Dmitriy Rozenblit ,  Hamid Firouzkouhi

    Inventor： Rajasekhar Pullela ,  Dmitriy Rozenblit ,  Hamid Firouzkouhi

    IPC: H04B1/04 ,  H04B15/00

    CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165 ,  H03D2200/0047 ,  H03D2200/0086

    Abstract: Various embodiments of systems and methods for generating local oscillator (LO) signals for a harmonic rejection mixer are provided. One embodiment is a system for generating local oscillator (LO) signals for a harmonic rejection mixer. One such system comprises a local oscillator, a divide-by-N frequency divider, a divide-by-three frequency divider, and a harmonic rejection mixer. The local oscillator is configured to provide a reference frequency signal. The divide-by-N frequency divider is configured to divide the reference frequency signal by a value N and provide an output signal. The divide-by-three frequency divider is configured to receive the output signal of the divide-by-N frequency divider and divide the output signal into three phase-offset signals. The harmonic rejection mixer is configured to receive the three phase-offset signals and eliminate third frequency harmonics.

    Abstract translation: 提供了用于产生用于谐波抑制混频器的本地振荡器（LO）信号的系统和方法的各种实施例。 一个实施例是用于产生用于谐波抑制混频器的本地振荡器（LO）信号的系统。 一个这样的系统包括本地振荡器，N分频分频器，除以三分频器和谐波抑制混频器。 本地振荡器被配置为提供参考频率信号。 N分频器被配置为将参考频率信号除以值N并提供输出信号。 三分频分频器被配置为接收除以N分频器的输出信号，并将输出信号分成三个相位偏移信号。 谐波抑制混频器被配置为接收三个相位偏移信号并消除第三频率谐波。

    Transmitter Gain Control and Calibration
    4.
    发明申请
    Transmitter Gain Control and Calibration 失效
    变送器增益控制和校准

    公开(公告)号：US20110268216A1

    公开(公告)日：2011-11-03

    申请号：US12771559

    申请日：2010-04-30

    Applicant: Dmitriy ROZENBLIT ,  Masoud Kahrizi ,  Morten Damgaard

    Inventor： Dmitriy ROZENBLIT ,  Masoud Kahrizi ,  Morten Damgaard

    IPC: H04L27/00

    CPC classification number: H04W52/12 ,  H03G3/001 ,  H03G3/3089 ,  H04B2001/0416

    Abstract: Embodiments provide improved systems and methods of gain control and calibration for wireless transmitters. In particular, embodiments allow linear gain control over the entire transmitter gain control range, independent of temperature/process variations. Embodiments require very low power consumption compared to existing approaches. Embodiments may also be used for gain control calibration during production time, thereby substantially reducing production calibration time and cost.

    Abstract translation: 实施例提供了用于无线发射机的增强控制和校准的改进的系统和方法。 特别地，实施例允许在整个发射机增益控制范围内的线性增益控制，与温度/过程变化无关。 与现有方法相比，实施例需要非常低的功耗。 实施例也可用于在生产时间期间的增益控制校准，从而大大减少生产校准时间和成本。

    System and method for power mapping to compensate for power amplifier gain control variations
    5.
    发明授权
    System and method for power mapping to compensate for power amplifier gain control variations 有权
    用于功率映射的系统和方法，以补偿功率放大器增益控制变化

    公开(公告)号：US07542741B2

    公开(公告)日：2009-06-02

    申请号：US11343442

    申请日：2006-01-31

    Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Dongsoo Koh

    Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Dongsoo Koh

    IPC: H04B1/04

    CPC classification number: H03G3/3042

    Abstract: A system for compensating gain control variations in a power amplifier comprises a power control element configured to receive a power control signal and an instantaneous envelope power reference signal, an adder configured to combine the power control signal and the instantaneous envelope power reference signal to obtain a modified power level signal, and a mapping function configured to receive the modified power level signal and configured to alter a control input to a variable gain amplifier, the variable gain amplifier controlling an adjustable input to the power amplifier.

    Abstract translation: 用于补偿功率放大器中的增益控制变化的系统包括被配置为接收功率控制信号和瞬时包络功率参考信号的功率控制元件，被配置为组合功率控制信号和瞬时包络功率参考信号以获得 修改的功率电平信号，以及映射功能，被配置为接收修改的功率电平信号并且被配置为改变对可变增益放大器的控制输入，所述可变增益放大器控制到功率放大器的可调输入。

    Single chip GSM/EDGE transceiver architecture with closed loop power control
    6.
    发明授权
    Single chip GSM/EDGE transceiver architecture with closed loop power control 失效
    单芯片GSM / EDGE收发器架构，具有闭环功率控制

    公开(公告)号：US07483678B2

    公开(公告)日：2009-01-27

    申请号：US11235907

    申请日：2005-09-27

    Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Rajasekhar Pullela

    Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Rajasekhar Pullela

    IPC: H04B1/38

    CPC classification number: H03B19/14 ,  H03G3/3047 ,  H03L7/081 ,  H03L7/087 ,  H03L7/0992 ,  H03L7/1978 ,  H03L7/23

    Abstract: A single chip GSM/EDGE transceiver comprises a fully differential receive chain, a subharmonic mixer in the receive chain, the subharmonic mixer configured to receive a radio frequency (RF) input signal and a local oscillator (LO) signal that is phase-shifted by a nominal 45 degrees, and a synthesizer having a voltage controlled oscillator and having at least one frequency divider to generate desired transmit and receive LO signals. The transceiver also comprises a transmitter having a closed power control loop, and a harmonic rejection modulator, the use thereof made possible by a frequency plan designed to allow the synthesizer to develop the transmit and receive LO signals without a frequency multiplier.

    Abstract translation: 单芯片GSM / EDGE收发器包括全差分接收链，接收链中的次谐波混频器，次谐波混频器被配置为接收射频（RF）输入信号和本地振荡器（LO）信号，该信号被相移 一个标称45度的合成器，以及具有压控振荡器并具有至少一个分频器以产生所需发射和接收LO信号的合成器。 收发器还包括具有闭合功率控制回路和谐波抑制调制器的发射机，其使用通过设计成允许合成器在没有倍频器的情况下开发发射和接收LO信号的频率计划成为可能。

    Single chip GSM/EDGE transceiver architecture with closed loop power control
    7.
    发明申请
    Single chip GSM/EDGE transceiver architecture with closed loop power control 失效
    单芯片GSM / EDGE收发器架构，具有闭环功率控制

    公开(公告)号：US20070072577A1

    公开(公告)日：2007-03-29

    申请号：US11235907

    申请日：2005-09-27

    Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Rajasekhar Pullela

    Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Rajasekhar Pullela

    IPC: H04B1/28 ,  H04M1/00 ,  H04B1/44

    CPC classification number: H03B19/14 ,  H03G3/3047 ,  H03L7/081 ,  H03L7/087 ,  H03L7/0992 ,  H03L7/1978 ,  H03L7/23

    Abstract: A single chip GSM/EDGE transceiver comprises a fully differential receive chain, a subharmonic mixer in the receive chain, the subharmonic mixer configured to receive a radio frequency (RF) input signal and a local oscillator (LO) signal that is phase-shifted by a nominal 45 degrees, and a synthesizer having a voltage controlled oscillator and having at least one frequency divider to generate desired transmit and receive LO signals. The transceiver also comprises a transmitter having a closed power control loop, and a harmonic rejection modulator, the use thereof made possible by a frequency plan designed to allow the synthesizer to develop the transmit and receive LO signals without a frequency multiplier.

    Abstract translation: 单芯片GSM / EDGE收发器包括全差分接收链，接收链中的次谐波混频器，次谐波混频器被配置为接收射频（RF）输入信号和本地振荡器（LO）信号，该信号被相移 一个标称45度的合成器，以及具有压控振荡器并具有至少一个分频器以产生所需发射和接收LO信号的合成器。 收发器还包括具有闭合功率控制回路和谐波抑制调制器的发射机，其使用通过设计成允许合成器在没有倍频器的情况下开发发射和接收LO信号的频率计划成为可能。

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