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1. 发明申请

US20050032488A1 System and method for current-mode amplitude modulation 有权
标题翻译：电流模式幅度调制的系统和方法
公开(公告)号：US20050032488A1
公开(公告)日：2005-02-10
申请号：US10889567
申请日：2004-07-12
申请人： David Pehlke , Aristotele Hadjichristos
发明人： David Pehlke , Aristotele Hadjichristos
IPC分类号： H03F3/24 , H04B1/04 , H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H03C1/06 , H03C5/00 , H03F1/02 , H03F1/0222 , H03F1/0261 , H03F1/32 , H03F3/24 , H03F2200/324 , H03F2200/456 , H03F2200/504 , H04B1/04 , H04B1/0483 , H04B2001/045 , H04B2001/0491
摘要： An amplifier circuit includes a power amplifier biased for saturated mode operation, and a controllable current source to provide supply current to the power amplifier. The controllable current source effects desired amplitude modulation of the output signal from the power amplifier by modulating the supply current it provides responsive to an amplitude information signal. In one or more embodiments, the current source includes a circuit that is configured to adjust one or more transmitter operating parameters responsive to detecting changes in the effective DC resistance of the power amplifier. For example, the circuit may generate a compensation signal that reduces the effective DC resistance responsive to detecting that the effective DC resistance has undesirably increased. By way of non-limiting examples, such compensation may be effected by changing a current mirror, an amplifier-to-antenna impedance matching, an amplifier bias or device size, or imposing some form of transmit signal back-off.
摘要翻译：放大器电路包括偏置用于饱和模式操作的功率放大器和可控电流源，以向功率放大器提供电源电流。可控电流源通过调制其响应于幅度信息信号提供的电源电流来影响来自功率放大器的输出信号的期望幅度调制。在一个或多个实施例中，电流源包括被配置为响应于检测功率放大器的有效直流电阻的变化来调整一个或多个发射器操作参数的电路。例如，电路可以响应于检测到有效DC电阻不期望地增加而产生降低有效DC电阻的补偿信号。作为非限制性示例，可以通过改变电流镜，放大器到天线阻抗匹配，放大器偏置或器件尺寸或者施加某种形式的发射信号反馈来实现这种补偿。

2. 发明申请

US20050134396A1 Polar modulation using amplitude modulated quadrature signals 有权
标题翻译：使用幅度调制正交信号进行极坐标调制
公开(公告)号：US20050134396A1
公开(公告)日：2005-06-23
申请号：US10738268
申请日：2003-12-17
申请人： David Pehlke , Aristotele Hadjichristos
发明人： David Pehlke , Aristotele Hadjichristos
IPC分类号： H04L27/36 , H03C3/00
CPC分类号： H04L27/362 , H04L27/361
摘要： Polar modulators include a phase splitter, a controller, variable current sources, transistor circuits, and a combiner. The phase splitter splits a RF carrier signal into quadrature component signals that are 90 degrees out of phase with each other. The controller generates modulation control signals based on information that is to be transmitted. The variable current sources each generate a variable amplitude current signal based on a different one of the modulation control signals. Each of the transistor circuits amplify a different one of the quadrature component signals with a variable amplification based on the variable amplitude current signal from a different one of the variable current sources to generate an amplitude adjusted quadrature component signal. The combiner combines the amplitude adjusted quadrature component signals from each of the transistor circuits to generate a phase-modulated RF carrier output signal.
摘要翻译：极性调制器包括分相器，控制器，可变电流源，晶体管电路和组合器。相位分离器将RF载波信号分离成彼此相差90度的正交分量信号。控制器根据要发送的信息产生调制控制信号。可变电流源各自基于不同的调制控制信号产生可变幅度电流信号。每个晶体管电路基于来自不同的可变电流源的可变幅度电流信号，用可变放大放大不同的正交分量信号，以产生振幅调整的正交分量信号。组合器组合来自每个晶体管电路的幅度调整的正交分量信号以产生相位调制的RF载波输出信号。

3. 发明授权

US07974596B2 Power control scheme for a power amplifier 有权
标题翻译：功率放大器的功率控制方案
公开(公告)号：US07974596B2
公开(公告)日：2011-07-05
申请号：US11646055
申请日：2006-12-27
申请人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
发明人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H04W52/52
摘要： In one embodiment, a method includes detecting a power level of a power amplifier coupled to a transceiver during a current burst of a radio communication and providing the detected power level from the power amplifier to the transceiver and controlling a power level of the power amplifier during a next burst based on the detected power level of the current burst.
摘要翻译：在一个实施例中，一种方法包括检测在无线电通信的当前突发期间耦合到收发器的功率放大器的功率电平，并且将检测到的功率电平从功率放大器提供给收发器，并且控制功率放大器的功率电平基于当前突发的检测到的功率电平的下一脉冲串。

4. 发明授权

US08565806B2 Real time transmission power control 有权
标题翻译：实时传输功率控制
公开(公告)号：US08565806B2
公开(公告)日：2013-10-22
申请号：US12965911
申请日：2010-12-12
申请人： Ralf Burdenski , David Pehlke
发明人： Ralf Burdenski , David Pehlke
IPC分类号： H04M1/00
CPC分类号： H03G3/3042
摘要： Controlling the output power of a radio transmitter includes operating the transmitter at an initial power level setting and making an output power measurement. The measured value is adjusted by a desired incremental value and the adjusted value is then compared with the power of the original baseband signal to obtain a representation of what the gain should be if the radio transmitter power is properly adjusted to achieve the desired incremental value. The output power of the radio transmitter is than actually adjusted, and the actual gain is measured. The difference between the actual gain and the representation of what the gain should be if the radio transmitter power is properly adjusted is used to determine a further power adjustment of the radio transmitter that will reduce the difference.
摘要翻译：控制无线电发射机的输出功率包括在初始功率电平设置下操作发射机并进行输出功率测量。测量值通过期望的增量值进行调整，然后将调整后的值与原始基带信号的功率进行比较，以获得如果无线电发射机功率被适当调整以达到期望的增量值，增益应该如何的表示。无线电发射机的输出功率不是实际调整的，实际的增益是测量的。如果无线电发射机功率被适当调整，则实际增益与增益应该表示的差异用于确定将减小差异的无线电发射机的另外的功率调整。

5. 发明申请

US20120149423A1 Real Time Transmission Power Control 有权
标题翻译：实时传输功率控制
公开(公告)号：US20120149423A1
公开(公告)日：2012-06-14
申请号：US12965911
申请日：2010-12-12
申请人： Ralf Burdenski , David Pehlke
发明人： Ralf Burdenski , David Pehlke
IPC分类号： H04W52/04
CPC分类号： H03G3/3042
摘要： Controlling the output power of a radio transmitter includes operating the transmitter at an initial power level setting and making an output power measurement. The measured value is adjusted by a desired incremental value and the adjusted value is then compared with the power of the original baseband signal to obtain a representation of what the gain should be if the radio transmitter power is properly adjusted to achieve the desired incremental value. The output power of the radio transmitter is than actually adjusted, and the actual gain is measured. The difference between the actual gain and the representation of what the gain should be if the radio transmitter power is properly adjusted is used to determine a further power adjustment of the radio transmitter that will reduce the difference.
摘要翻译：控制无线电发射机的输出功率包括在初始功率电平设置下操作发射机并进行输出功率测量。测量值通过期望的增量值进行调整，然后将调整后的值与原始基带信号的功率进行比较，以获得如果无线电发射机功率被适当调整以达到期望的增量值，增益应该如何的表示。无线电发射机的输出功率不是实际调整的，实际的增益是测量的。如果无线电发射机功率被适当调整，则实际增益与增益应该表示的差异用于确定将减小差异的无线电发射机的另外的功率调整。

6. 发明申请

US20110230145A1 Power Control Scheme For A Power Amplifier 审中-公开
标题翻译：功率放大器的功率控制方案
公开(公告)号：US20110230145A1
公开(公告)日：2011-09-22
申请号：US13117710
申请日：2011-05-27
申请人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
发明人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
IPC分类号： H04W52/04
CPC分类号： H04W52/52
摘要： In one embodiment, a method includes detecting a power level of a power amplifier coupled to a transceiver during a current burst of a radio communication and providing the detected power level from the power amplifier to the transceiver and controlling a power level of the power amplifier during a next burst based on the detected power level of the current burst.
摘要翻译：在一个实施例中，一种方法包括检测在无线电通信的当前突发期间耦合到收发器的功率放大器的功率电平，并且将检测到的功率电平从功率放大器提供给收发器，并且控制功率放大器的功率电平基于当前突发的检测到的功率电平的下一脉冲串。

7. 发明申请

US20080076378A1 Power control scheme for a power amplifier 有权
标题翻译：功率放大器的功率控制方案
公开(公告)号：US20080076378A1
公开(公告)日：2008-03-27
申请号：US11646055
申请日：2006-12-27
申请人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
发明人： Lysander Lim , David Pehlke , John Khoury , Vincent Leung
IPC分类号： H04B1/16
CPC分类号： H04W52/52
摘要： In one embodiment, a method includes detecting a power level of a power amplifier coupled to a transceiver during a current burst of a radio communication and providing the detected power level from the power amplifier to the transceiver and controlling a power level of the power amplifier during a next burst based on the detected power level of the current burst.
摘要翻译：在一个实施例中，一种方法包括检测在无线电通信的当前突发期间耦合到收发器的功率放大器的功率电平，并且将检测到的功率电平从功率放大器提供给收发器，并且控制功率放大器的功率电平基于当前突发的检测到的功率电平的下一脉冲串。

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