公开(公告)号：US06633751B1

公开(公告)日：2003-10-14

申请号：US09666577

申请日：2000-09-21

Applicant: Morten Damgaard ,  William J. Domino ,  Nooshin D. Vakilian ,  Dmitriy Rozenblit

Inventor： Morten Damgaard ,  William J. Domino ,  Nooshin D. Vakilian ,  Dmitriy Rozenblit

IPC: H01Q1112

CPC classification number: H03F1/3247 ,  H03F1/02 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3047 ,  H04B2001/0416 ,  H04B2001/0433

Abstract: A system for controlling a power amplifier using a dual feedback translation loop uses the output of the translation loop during a first time period where a power amplifier has insufficient power to lock the loop and uses the output of the power amplifier to lock the translation loop only after the power amplifier provides sufficient power. By using a first feedback loop taken from the output of the translation loop and a second feedback loop taken from the output of the power amplifier, the translation loop can lock to the output of the translation loop until the power output of the power amplifier is sufficient to lock the translation loop. A pair of phase detectors and corresponding charge pumps associated with each of the feedback loops provides a smooth switching function while transitioning from the first loop to the second loop.

Abstract translation: 用于使用双反馈平移环控制功率放大器的系统在第一时间段期间使用平移环路的输出，其中功率放大器的功率不足以锁定环路并且仅使用功率放大器的输出来仅锁定转换环路 功率放大器提供足够的功率后。 通过使用从平移环路的输出获得的第一反馈回路和从功率放大器的输出获得的第二反馈回路，转换环路可以锁定到转换环路的输出，直到功率放大器的功率输出足够 锁定翻译循环。 与每个反馈回路相关联的一对相位检测器和相应的电荷泵在从第一回路转换到第二回路时提供平滑的开关功能。

公开(公告)号：US08768273B2

公开(公告)日：2014-07-01

申请号：US13328518

申请日：2011-12-16

Applicant: Dmitriy Rozenblit ,  Masoud Kahrizi

Inventor： Dmitriy Rozenblit ,  Masoud Kahrizi

IPC: H04B1/04

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。

公开(公告)号：US08693959B1

公开(公告)日：2014-04-08

申请号：US09621407

申请日：2000-07-21

Applicant: William J. Domino ,  Scott A. Griffith ,  Dmitriy Rozenblit

Inventor： William J. Domino ,  Scott A. Griffith ,  Dmitriy Rozenblit

IPC: H04B1/40

CPC classification number: H03C3/0966 ,  H03C3/0941 ,  H03C3/0958 ,  H03D3/007 ,  H04B1/30 ,  H04B1/408 ,  H04L27/20

Abstract: A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is connected to the direct conversion receiver, and generates a signal having a frequency equal to a subharmonic of the carrier frequency signal. A transmitter is connected to the local oscillator, which uses the local oscillator signal to transmit outgoing data.

Abstract translation: 提供了一种用于发送和接收数据的系统。 该系统包括接收在载波频率信号上调制的信号的直接转换接收机。 直接转换接收器包括一个或多个次谐波本地振荡器混频器。 本地振荡器连接到直接转换接收器，并且产生具有等于载波频率信号的次谐波的频率的信号。 发送器连接到本地振荡器，其使用本地振荡器信号来发送输出数据。

公开(公告)号：US20120064953A1

公开(公告)日：2012-03-15

申请号：US13230070

申请日：2011-09-12

Applicant: Elias Dagher ,  Kevin Juan ,  Man H. Ku ,  Dmitriy Rozenblit

Inventor： Elias Dagher ,  Kevin Juan ,  Man H. Ku ,  Dmitriy Rozenblit

IPC: H04W88/02 ,  H03F1/02 ,  H04B1/38

CPC classification number: H04W52/52

Abstract: A controller enables the integration of a DC-DC converter in an amplitude modulation power control loop in a mobile handset. The controller includes an input conditioner and an event sensor. The input conditioner uses a peak detector to track the output of a regulator and responds to available baseband input signals. The event sensor controls a switch that connects the DC-DC converter to a battery in response to a bypass event. The controller bypasses the DC-DC-converter when a transmitter is not enabled. The DC-DC converter is enabled prior to a transmission burst. A target voltage is determined from a series of detected peak voltages from the output of the regulator. The controller commands the DC-DC converter to transition to the target voltage until the end of a transmission burst.

Abstract translation: 控制器使DC-DC转换器在移动手持机的幅度调制功率控制环路中集成。 控制器包括输入调节器和事件传感器。 输入调节器使用峰值检测器来跟踪调节器的输出并响应可用的基带输入信号。 事件传感器控制开关，以响应旁路事件将DC-DC转换器连接到电池。 当变送器未使能时，控制器将旁路DC-DC转换器。 DC-DC转换器在传输突发之前被使能。 目标电压根据来自调节器的输出的一系列检测到的峰值电压确定。 控制器命令DC-DC转换器转换到目标电压，直到传输突发结束。

公开(公告)号：US07920836B2

公开(公告)日：2011-04-05

申请号：US12715705

申请日：2010-03-02

Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/32 ,  H03F1/34 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/438 ,  H03G3/3047 ,  H04B2001/0433

Abstract: A system for saturation detection, correction and recovery in a power amplifier includes a power amplifier, a closed power control loop configured to develop a power control signal (VPC), and power control circuitry configured to reduce the power control signal if the power amplifier is operating in a saturation mode.

Abstract translation: 一种用于功率放大器中的饱和度检测，校正和恢复的系统包括：功率放大器，被配置为开发功率控制信号（VPC）的闭合功率控制回路;以及功率控制电路，其被配置为如果功率放大器为 在饱和模式下工作。

公开(公告)号：US07764055B2

公开(公告)日：2010-07-27

申请号：US11483687

申请日：2006-07-10

Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard ,  Darioush Agahi

Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Morten Damgaard ,  Darioush Agahi

IPC: G05F1/00

CPC classification number: H04B1/04 ,  H03F1/0227 ,  H03G3/3047 ,  H04B2001/0416 ,  H04W52/367 ,  H04W52/52

Abstract: A supply voltage controlled power amplifier includes a power amplifier, a closed power control loop configured to generate a power control signal, and a voltage regulator coupled to the power control loop, the voltage regulator including a first regulator stage, a second regulator stage, and a peak detector, wherein an output of the second regulator stage is applied as a feedback signal to the first regulator stage and wherein an output of the first regulator stage is decreased to a level consistent with an output of the power amplifier and an additional operating buffer amount.

Abstract translation: 电源电压控制功率放大器包括功率放大器，被配置为产生功率控制信号的闭合功率控制回路和耦合到功率控制回路的电压调节器，所述电压调节器包括第一调节器级，第二调节器级和 峰值检测器，其中将第二调节器级的输出作为反馈信号施加到第一调节器级，并且其中第一调节器级的输出减小到与功率放大器的输出和附加操作缓冲器一致的电平 量。

公开(公告)号：US07515880B2

公开(公告)日：2009-04-07

申请号：US11348001

申请日：2006-02-06

Applicant: Dmitriy Rozenblit ,  Rajasekhar Pullela ,  Tirdad Sowlati ,  Shahrzad Tadjpour

Inventor： Dmitriy Rozenblit ,  Rajasekhar Pullela ,  Tirdad Sowlati ,  Shahrzad Tadjpour

IPC: H04B1/38

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

Abstract: A variable gain frequency multiplier comprises a multiplier circuit and a control circuit configured to receive a power control signal, the power control signal being proportional to a power output signal.

Abstract translation: 可变增益倍频器包括乘法器电路和被配置为接收功率控制信号的控制电路，功率控制信号与功率输出信号成比例。

公开(公告)号：US07398073B2

公开(公告)日：2008-07-08

申请号：US11220030

申请日：2005-09-06

Applicant: Rajasekhar Pullela ,  Tirdad Sowlati ,  Dmitriy Rozenblit

Inventor： Rajasekhar Pullela ,  Tirdad Sowlati ,  Dmitriy Rozenblit

IPC: H04B1/26

CPC classification number: H04B1/28 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/165 ,  H03D2200/0019 ,  H03D2200/0084

Abstract: A low noise mixer comprises a first mixer core configured to receive a radio frequency (RF) input signal having an RF frequency, and a first local oscillator signal, wherein the first local oscillator signal is at a frequency that is nominally twice the frequency of the RF frequency, the first mixer core configured to switch the RF input signal to at least one secondary mixer core at a frequency that coincides with the frequency of the first local oscillator signal, the at least one secondary mixer core configured to receive the switched RF input signal and a second local oscillator signal, where the second local oscillator signal is at the same nominal frequency as the RF input signal, and wherein switching the RF input signal at the frequency of the first local oscillator signal substantially eliminates flicker noise associated with the down-conversion process.

Abstract translation: 低噪声混频器包括被配置为接收具有RF频率的射频（RF）输入信号和第一本地振荡器信号的第一混频器核心，其中第一本地振荡器信号的频率是标称频率为 RF频率，所述第一混频器核心被配置为以与所述第一本机振荡器信号的频率一致的频率将所述RF输入信号切换到至少一个辅助混频器内核，所述至少一个辅助混频器核心被配置为接收所述切换的RF输入 信号和第二本地振荡器信号，其中第二本机振荡器信号处于与RF输入信号相同的标称频率，并且其中以第一本地振荡器信号的频率切换RF输入信号基本上消除与下降相关联的闪烁噪声 转换过程。

公开(公告)号：US20070264947A1

公开(公告)日：2007-11-15

申请号：US11431759

申请日：2006-05-10

Applicant: Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi ,  Morten Damgaard

Inventor： Dmitriy Rozenblit ,  Tirdad Sowlati ,  Darioush Agahi ,  Morten Damgaard

IPC: H01Q11/12

CPC classification number: H03G3/3047

Abstract: A system for saturation detection and compensation in a power amplifier includes a power amplifier, a closed power control loop configured to develop a power control signal (VPC), a comparator configured to receive the power control signal and a reference signal, the comparator also configured to determine whether the power amplifier is operating in a saturation mode, and power control circuitry configured to reduce the power control signal if the power amplifier is operating in a saturation mode.

Abstract translation: 功率放大器中的饱和检测和补偿系统包括：功率放大器，被配置为开发功率控制信号的闭合功率控制回路;配置成接收功率控制信号的比较器;以及 参考信号，所述比较器还被配置为确定所述功率放大器是否工作在饱和模式;以及功率控制电路，其被配置为如果所述功率放大器在饱和模式下工作，则降低所述功率控制信号。

公开(公告)号：US07218951B2

公开(公告)日：2007-05-15

申请号：US10885162

申请日：2004-07-06

Applicant: Dmitriy Rozenblit ,  Morten Damgaard ,  Russell J. Fagg ,  William J. Domino

Inventor： Dmitriy Rozenblit ,  Morten Damgaard ,  Russell J. Fagg ,  William J. Domino

IPC: H04B7/00 ,  H04B1/04

CPC classification number: H04W52/52 ,  H03F1/0272 ,  H03F2200/294 ,  H03F2200/372 ,  H04B2001/0416

Abstract: A single continuous closed-loop power control feedback system provides seamless power control for a power amplifier and also enables an AM signal to be injected into the power amplifier through the power amplifiers' control port. The AM signal is developed by an I/Q modulator and supplied to a comparator located in the power control loop. By using leakage from the power amplifier as feedback to a phase locked loop during initial power amplifier power ramp-up, the single continuous closed-loop power control system provides continuous feedback to the phase locked loop during the entire power amplification ramp-up period and eliminates the need for multiple feedback loops.

Abstract translation: 单个连续闭环功率控制反馈系统为功率放大器提供无缝功率控制，并且还可以通过功率放大器的控制端口将AM信号注入功率放大器。 AM信号由I / Q调制器开发，并提供给位于功率控制回路中的比较器。 在初始功率放大器功率提升期间，通过使用来自功率放大器的泄漏作为对锁相环的反馈，单个连续闭环功率控制系统在整个功率放大加速周期期间向锁相环提供连续反馈，并且 消除了对多个反馈环路的需要。