公开(公告)号：US09203416B2

公开(公告)日：2015-12-01

申请号：US13914486

申请日：2013-06-10

Applicant: Broadcom Corporation

Inventor： Dmitriy Rozenblit ,  Rahul Magoon

IPC: H04B1/403 ,  H03L7/07 ,  H03L7/099 ,  H03L7/08

CPC classification number: H03L7/08 ,  H03L7/099 ,  H03L7/102 ,  H03L7/183 ,  H03L2207/06

Abstract: Various configurations and arrangements of systems and methods for compensating for variations in VCO output frequencies are described. A system in accordance with the disclosure can include an oscillator circuit including an oscillator, a first variable capacitance diode coupled to the oscillator and a second variable capacitance diode coupled to the oscillator. The system further includes a voltage source configured to apply a first voltage to the oscillator circuit to cause the output signal to comprise a selected frequency, the selected frequency being based on a received reference voltage. The system further includes a controller circuit configured to compare an operating voltage of the oscillator to the reference voltage while the first voltage is applied to the oscillator; and apply a second voltage to the oscillator circuit based on the comparison. The second voltage compensates for a difference between the reference voltage and the first voltage.

Abstract translation: 描述用于补偿VCO输出频率变化的系统和方法的各种配置和布置。 根据本公开的系统可以包括振荡器电路，其包括振荡器，耦合到振荡器的第一可变电容二极管和耦合到振荡器的第二可变电容二极管。 该系统还包括被配置为向振荡器电路施加第一电压以使输出信号包括所选择的频率的电压源，所选频率基于所接收的参考电压。 该系统还包括控制器电路，其被配置为在将第一电压施加到振荡器的同时将振荡器的工作电压与参考电压进行比较; 并根据比较对振荡电路施加第二电压。 第二电压补偿参考电压和第一电压之间的差。

公开(公告)号：US08873676B2

公开(公告)日：2014-10-28

申请号：US13872678

申请日：2013-04-29

Applicant: Broadcom Corporation

Inventor： Dmitriy Rozenblit ,  Masoud Kahrizi ,  Morten Damgaard

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04W52/12 ,  H03G3/30 ,  H04B1/04

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。

公开(公告)号：US09231534B2

公开(公告)日：2016-01-05

申请号：US14060171

申请日：2013-10-22

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Vipin Kumar Aggarwal

IPC: H01Q11/12 ,  H03F3/19 ,  H03F1/02 ,  H03F3/24

CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A method and apparatus is provided to improve upon the efficiency of a power amplifier. Suitable hardware/software in the form of circuitry, logic gates, and/or code functions to construct an envelope tracking waveform of an input communications signal and modulate the input supply voltage based on power amplifier circuitry operational parameters such as slew rates.

Abstract translation: 提供了一种提高功率放大器效率的方法和装置。 以电路，逻辑门和/或代码功能的形式的合适的硬件/软件，用于构建输入通信信号的包络跟踪波形，并且基于功率放大器电路对诸如转换速率的操作参数调制输入电源电压。

公开(公告)号：US09209839B2

公开(公告)日：2015-12-08

申请号：US13910959

申请日：2013-06-05

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati

IPC: H01Q9/06 ,  H04B1/04 ,  H03H7/40

CPC classification number: H04B1/0458 ,  H03H7/40

Abstract: A method for an antenna mismatch compensation may include determining an amplitude ratio by measuring a ratio of amplitudes of a reflected signal and an incident signal of an antenna tuning circuit coupled to an antenna. A time difference between the reflected signal and the incident signal may be measured. The time difference may be converted to a phase difference. A topology and one or more parameters of the antenna tuning circuit may be determined based on the amplitude ratio and the phase difference so that the antenna tuning circuit compensates for the antenna mismatch.

Abstract translation: 用于天线失配补偿的方法可以包括通过测量反射信号的幅度与耦合到天线的天线调谐电路的入射信号的比率来确定振幅比。 可以测量反射信号和入射信号之间的时间差。 该时间差可以被转换为相位差。 可以基于振幅比和相位差来确定天线调谐电路的拓扑和一个或多个参数，使得天线调谐电路补偿天线失配。

公开(公告)号：US20140347105A1

公开(公告)日：2014-11-27

申请号：US13914486

申请日：2013-06-10

Applicant: Broadcom Corporation

Inventor： Dmitriy Rozenblit ,  Rahul Magoon

IPC: H03L7/08

CPC classification number: H03L7/08 ,  H03L7/099 ,  H03L7/102 ,  H03L7/183 ,  H03L2207/06

Abstract: Various configurations and arrangements of systems and methods for compensating for variations in VCO output frequencies are described. A system in accordance with the disclosure can include an oscillator circuit including an oscillator, a first variable capacitance diode coupled to the oscillator and a second variable capacitance diode coupled to the oscillator. The system further includes a voltage source configured to apply a first voltage to the oscillator circuit to cause the output signal to comprise a selected frequency, the selected frequency being based on a received reference voltage. The system further includes a controller circuit configured to compare an operating voltage of the oscillator to the reference voltage while the first voltage is applied to the oscillator; and apply a second voltage to the oscillator circuit based on the comparison. The second voltage compensates for a difference between the reference voltage and the first voltage.

Abstract translation: 描述用于补偿VCO输出频率变化的系统和方法的各种配置和布置。 根据本公开的系统可以包括振荡器电路，其包括振荡器，耦合到振荡器的第一可变电容二极管和耦合到振荡器的第二可变电容二极管。 该系统还包括被配置为向振荡器电路施加第一电压以使输出信号包括所选择的频率的电压源，所选择的频率基于所接收的参考电压。 该系统还包括控制器电路，其被配置为在将第一电压施加到振荡器的同时将振荡器的工作电压与参考电压进行比较; 并根据比较对振荡电路施加第二电压。 第二电压补偿参考电压和第一电压之间的差。

公开(公告)号：US20140313088A1

公开(公告)日：2014-10-23

申请号：US13910959

申请日：2013-06-05

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati

IPC: H01Q9/06

CPC classification number: H04B1/0458 ,  H03H7/40

Abstract: A method for an antenna mismatch compensation may include determining an amplitude ratio by measuring a ratio of amplitudes of a reflected signal and an incident signal of an antenna tuning circuit coupled to an antenna. A time difference between the reflected signal and the incident signal may be measured. The time difference may be converted to a phase difference. A topology and one or more parameters of the antenna tuning circuit may be determined based on the amplitude ratio and the phase difference so that the antenna tuning circuit compensates for the antenna mismatch.

Abstract translation: 用于天线失配补偿的方法可以包括通过测量反射信号的幅度与耦合到天线的天线调谐电路的入射信号的比率来确定振幅比。 可以测量反射信号和入射信号之间的时间差。 该时间差可以被转换为相位差。 可以基于振幅比和相位差来确定天线调谐电路的拓扑和一个或多个参数，使得天线调谐电路补偿天线失配。

公开(公告)号：US20150091655A1

公开(公告)日：2015-04-02

申请号：US14060171

申请日：2013-10-22

Applicant: BROADCOM CORPORATION

Inventor： Dmitriy Rozenblit ,  Vipin Kumar Aggarwal

IPC: H03F3/21 ,  H03F3/19 ,  H03F1/02

CPC classification number: H03F3/19 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

Abstract: A method and apparatus is provided to improve upon the efficiency of a power amplifier. Suitable hardware/software in the form of circuitry, logic gates, and/or code functions to construct an envelope tracking waveform of an input communications signal and modulate the input supply voltage based on power amplifier circuitry operational parameters such as slew rates.

Abstract translation: 提供了一种提高功率放大器效率的方法和装置。 以电路，逻辑门和/或代码功能的形式的合适的硬件/软件，用于构建输入通信信号的包络跟踪波形，并且基于功率放大器电路对诸如转换速率的操作参数调制输入电源电压。

公开(公告)号：US20140341318A1

公开(公告)日：2014-11-20

申请号：US13913327

申请日：2013-06-07

Applicant: Broadcom Corporation

Inventor： Mohsen Pourkhaatoun ,  Dmitriy Rozenblit ,  Masoud Kahrizi ,  Alireza Tarighat Mehrabani

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H04W52/0251 ,  H04W52/0258 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/40

Abstract: Average Power Tracking (APT) is a technique that can be utilized for vary the supply voltage to a power amplifier (PA) on a timeslot basis in order to reduce power consumption of the PA. Systems and methods are provided for maximizing power savings associated with the PA by utilizing APT in a continuous and aggressive manner. Additionally, the systems and methods can further compensate for variations in temperature, frequency, antenna load, and peak to average power ratio (PAPR) without sacrificing the power savings.

Abstract translation: 平均功率跟踪（APT）是一种技术，可以用于在时隙上改变功率放大器（PA）的电源电压，以降低PA的功耗。 提供了系统和方法，通过以连续和积极的方式利用APT来最大化与PA相关联的功率节省。 另外，系统和方法可以进一步补偿温度，频率，天线负载和峰值与平均功率比（PAPR）的变化，而不会牺牲功率节省。