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11. 发明申请

US20130022151A1 COMMUNICATIONS TRANSMITTER HAVING HIGH-EFFICIENCY COMBINATION MODULATOR 有权
标题翻译：具有高效率组合调制器的通信发射机
公开(公告)号：US20130022151A1
公开(公告)日：2013-01-24
申请号：US13186793
申请日：2011-07-20
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H04L27/36
CPC分类号： H04L27/362 , H04L27/361
摘要： A communications transmitter includes a combination modulator and a baseband processor configured to generate amplitude, angle, in-phase and quadrature signals. The combination modulator is configured to modulate in the quadrature domain or the polar domain, depending on an output power level of the transmitter and/or the type of modulation scheme being used. When configured to modulate in the quadrature domain, the baseband processor is configured to generate time-varying in-phase and quadrature modulating signals and time-invariant amplitude and angle signals for the combination modulator. When configured to modulate in the polar domain, the baseband processor is configured to generate time-varying amplitude and angle modulating signals and time-invariant in-phase and quadrature signals for the combination modulator. In another embodiment of the invention, the communications transmitter is configurable to operate in three different operational modes: linear, envelope tracking and switch modes. Which operational mode the communications transmitter is configured to transmit depends on the type of modulation scheme being used and/or the transmitter output power level.
摘要翻译：通信发射机包括组合调制器和被配置为产生幅度，角度，同相和正交信号的基带处理器。组合调制器被配置为根据发射机的输出功率电平和/或正在使用的调制方案的类型在正交域或极坐标域中进行调制。当配置为在正交域中调制时，基带处理器被配置为为组合调制器生成时变同相和正交调制信号以及时不变的幅度和角度信号。当配置为在极域中调制时，基带处理器被配置为产生用于组合调制器的时变幅度和角度调制信号以及时间不变的同相和正交信号。在本发明的另一实施例中，通信发射机可配置为以三种不同的操作模式操作：线性，包络跟踪和切换模式。通信发射机被配置为发送的哪个操作模式取决于所使用的调制方案的类型和/或发射机的输出功率电平。

12. 发明申请

US20090093223A1 METHODS AND APPARATUS FOR REDUCING RADIATED FIELD FEEDBACK IN RADIO FREQUENCY TRANSMITTERS 审中-公开
标题翻译：用于减少无线电频率发射机辐射场反馈的方法和装置
公开(公告)号：US20090093223A1
公开(公告)日：2009-04-09
申请号：US11867945
申请日：2007-10-05
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H04B1/04
CPC分类号： H04B1/04
摘要： Methods and apparatus for reducing radiated field feedback in radio frequency (RF) transmitters. An exemplary RF transmitter includes a power amplifier (PA) and a low-field oscillator (LFO) that are co-located, either on a common module or integrated in the same integrated circuit chip. By using an LFO for the transmitter's local oscillator, radiated field feedback from the PA to the LFO is substantially reduced. In addition to, or instead of using an LFO to reduce radiated field feedback, the LFO or a voltage controlled oscillator (VCO) may be configured to operate at either a harmonic or a non-integer multiple of the transmitter's output signal frequency. Using an LFO or VCO and/or operating the oscillator at a harmonic or a non-integer multiple of the radio system output signal frequency reduces the degree by which electromagnetic fields generated by the radio system's PA and antenna interfere with electromagnetic fields generated by the LFO or VCO, thereby allowing the LFO or VCO to be co-located with or integrated in the same integrated circuit chip as the radio system's PA.
摘要翻译：用于减少射频（RF）发射机辐射场反馈的方法和装置。示例性RF发射器包括功率放大器（PA）和低场振荡器（LFO），它们位于公共模块上或集成在同一集成电路芯片中。通过使用LFO作为发射机的本地振荡器，从PA到LFO的辐射场反馈大大减少。除了或代替使用LFO以减少辐射场反馈之外，LFO或压控振荡器（VCO）可以被配置为以发射机的输出信号频率的谐波或非整数倍工作。使用LFO或VCO和/或以无线电系统输出信号频率的谐波或非整数倍操作振荡器降低了由无线电系统的PA和天线产生的电磁场干扰由LFO产生的电磁场的程度或VCO，从而允许LFO或VCO与无线电系统的PA共同定位或集成在同一集成电路芯片中。

13. 发明申请

US20090011730A1 Methods and Apparatus for Controlling Power in a Polar Modulation Transmitter 审中-公开
标题翻译：用于控制极性调制发射机功率的方法和装置
公开(公告)号：US20090011730A1
公开(公告)日：2009-01-08
申请号：US11773612
申请日：2007-07-05
申请人： Paul Cheng-Po Liang , Earl W. McCune, JR.
发明人： Paul Cheng-Po Liang , Earl W. McCune, JR.
IPC分类号： H04B1/04
CPC分类号： H03G3/004
摘要： A power amplifier of a polar transmitter having separate amplitude and phase paths is configured so that its output power is controlled by power control circuitry disposed in both the amplitude and phase paths of the transmitter. Coarse power control is provided by coarse power control circuitry configured in the phase path. Fine power control is performed by digital power control circuitry configured in the amplitude path. The combined coarse power control circuitry in the phase path and digital power control circuitry in the amplitude path allows the output power of the power amplifier to be controlled at the accuracy and resolution required by wireless communications standards such as, for example, the W-CDMA standard.
摘要翻译：具有分离的幅度和相位路径的极性发射机的功率放大器被配置为使得其输出功率由布置在发射机的幅度和相位路径中的功率控制电路控制。粗电源控制由配置在相位路径中的粗略功率控制电路提供。精细的功率控制由在幅度路径中配置的数字功率控制电路执行。相位路径中的组合粗略功率控制电路和振幅路径中的数字功率控制电路允许功率放大器的输出功率以无线通信标准所需的精度和分辨率进行控制，例如W-CDMA 标准。

14. 发明申请

US20150245441A1 High-Efficiency, Wide Dynamic Range Dimming for Solid-State Lighting 审中-公开
标题翻译：高效率，宽动态范围调光固态照明
公开(公告)号：US20150245441A1
公开(公告)日：2015-08-27
申请号：US14620712
申请日：2015-02-12
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/0812 , Y02B20/345
摘要： A solid-state lighting system includes a light-emitting device connected in series with a variable dim setting resistor, an adjustable regulator, and a current sensor disposed in a feedback loop between an adjust input of the adjustable regulator and the variable dim setting resistor. The voltage dropped across the variable dim setting resistor is forced to remain constant irrespective of the resistance setting of the dim setting resistor. The current sensor measures or senses the current flowing through the variable dim setting resistor and causes the adjustable regulator to adjust its output voltage and the forward voltage drop across the light-emitting device so that the current flowing through the light-emitting device matches the current set by the variable dim setting resistor. Controlling the current in this manner allows dimming to be performed over an extremely wide dimming range, to very low light levels, and without producing light flicker at any dim level.
摘要翻译：固态照明系统包括与可变调光设置电阻器串联的发光器件，可调节调节器和设置在可调节调节器的调节输入端和可变调光设置电阻器之间的反馈回路中的电流传感器。与变暗设置电阻器的电阻设置无关，可变阻抗设置电阻上的电压被强制保持恒定。电流传感器测量或感测流过可变调光设置电阻器的电流，并使可调节调节器调节其输出电压和发光器件两端的正向压降，使得流过发光器件的电流与电流匹配由可变调光设置电阻设置。以这种方式控制电流允许在非常宽的调光范围内进行调光，达到非常低的光线水平，并且在任何昏暗的水平下不产生光闪烁。

15. 发明申请

US20120081025A1 Power Conversion and Control Systems and Methods for Solid-State Lighting 有权
公开(公告)号：US20120081025A1
公开(公告)日：2012-04-05
申请号：US12897081
申请日：2010-10-04
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H05B41/24 , H05B37/02
CPC分类号： H05B37/02 , H05B33/0815 , Y02B20/348
摘要： A solid-state lighting system comprises a plurality of light-emitting devices (e.g., light-emitting diodes) and an alternating current to direct current (AC-DC) converter that converts AC power to DC power for powering the plurality of light-emitting devices. The AC-DC converter is configured to perform AC-DC conversion directly, without the need for or use of a bridge rectifier or step-down transformer. According to one aspect of the invention, the light-emitting devices of the solid-state lighting system are autonomous and individually powered by a plurality of DC power supplies generated from the DC power produced by the AC-DC converter. According to another aspect, a plurality of phase-offset dimmer control signals are generated based on waveform distortions in a dimming signal produced by a conventional dimmer switch. The phase-offset dimmer control signals are used to individually control the dimming of the light-emitting devices.

16. 发明申请

US20090251368A1 PHASED ARRAY RECEIVERS AND METHODS EMPLOYING PHASE SHIFTING DOWNCONVERTERS 有权
标题翻译：相位阵列接收器和使用相移位移转换器的方法
公开(公告)号：US20090251368A1
公开(公告)日：2009-10-08
申请号：US12098065
申请日：2008-04-04
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H01Q3/00
CPC分类号： H01Q3/38 , H01Q3/267
摘要： A phased array receiver includes a plurality of receive paths having a plurality of downconverters, a plurality of digitally controlled local oscillators associated with the plurality of receive paths, and a combiner. In response to a plurality of digital phase control signals, the plurality of digitally controlled local oscillators controls phases of a plurality of local oscillator signals generated by the plurality of digitally controlled local oscillators. The phases of the plurality of local oscillator signals are introduced as phase shifts in a plurality of intermediate frequency signals produced by the plurality of downconverters. The plurality of digitally controlled local oscillators is configured to respond to changes in digital values of the plurality of digital phase control signals to achieve a desired phase relationship among the phases of the intermediate frequency signals.
摘要翻译：相控阵接收机包括具有多个下变频器的多个接收路径，与多个接收路径相关联的多个数字控制的本地振荡器，以及组合器。响应于多个数字相位控制信号，多个数字控制的本地振荡器控制由多个数字控制的本地振荡器产生的多个本地振荡器信号的相位。多个本地振荡器信号的相位被引入由多个下变频器产生的多个中频信号中的相移。多个数字控制的本地振荡器被配置为响应多个数字相位控制信号的数字值的变化，以实现中频信号的相位之间的期望的相位关系。

17. 发明申请

US20090237157A1 POWER AMPLIFIER EDGE EVALUATION-ALTERNATIVE ENVELOPE MODULATOR 有权
标题翻译：功率放大器边缘评估 - 替代环境调节器
公开(公告)号：US20090237157A1
公开(公告)日：2009-09-24
申请号：US12394543
申请日：2009-02-27
申请人： Wendell B. Sander , Earl W. McCune, JR.
发明人： Wendell B. Sander , Earl W. McCune, JR.
IPC分类号： H03G3/20
CPC分类号： H03G3/3042 , H03C5/00
摘要： A modulator includes a power driver, a power amplifier, and a heterojunction bipolar transistor (HBT) type device. The power driver is for receiving an amplitude modulation signal and for providing a control signal. The power amplifier is for receiving a phase modulation signal, a bias voltage, and the control signal. The power amplifier is for providing a radio frequency signal as an output based on the phase modulation signal, the bias voltage, and the control signal. The switching device is for coupling the power driver to the power amplifier such that the control signal is provided to the power amplifier in a timely manner.
摘要翻译：调制器包括功率驱动器，功率放大器和异质结双极晶体管（HBT）型器件。功率驱动器用于接收幅度调制信号并提供控制信号。功率放大器用于接收相位调制信号，偏置电压和控制信号。功率放大器用于基于相位调制信号，偏置电压和控制信号提供射频信号作为输出。开关装置用于将功率驱动器耦合到功率放大器，使得控制信号及时地提供给功率放大器。

18. 发明申请

US20090233644A1 MULTIPLE CARRIER RADIO SYSTEMS AND METHODS EMPLOYING POLAR ACTIVE ANTENNA ELEMENTS 审中-公开
标题翻译：多载波无线电系统和使用极性活性天线元素的方法
公开(公告)号：US20090233644A1
公开(公告)日：2009-09-17
申请号：US12046317
申请日：2008-03-11
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H04B1/38 , H04B1/02
CPC分类号： H04B1/0483 , H04L5/0023 , H04L27/2601
摘要： A multiple carrier radio system includes a baseband subsystem and a plurality of polar modulators. The polar modulators are mounted at antenna locations (e.g., in a base transceiver station (BTS)) above the ground), and are configured to receive modulation signals generated by the baseband subsystem. The plurality of polar modulators generates a plurality of modulated RF carrier signals using the modulation signals. The modulated RF carrier signals are radiated by a corresponding plurality of antenna elements coupled to the plurality of polar modulators.
摘要翻译：多载波无线电系统包括基带子系统和多个极性调制器。极地调制器安装在地面上方的天线位置（例如，在基地收发台（BTS））中，并被配置为接收由基带子系统产生的调制信号。多个极化调制器使用调制信号产生多个调制的RF载波信号。经调制的RF载波信号由耦合到多个极性调制器的相应多个天线元件辐射。

19. 发明申请

US20090111397A1 POLAR MODULATION TRANSMITTER WITH ENVELOPE MODULATOR PATH SWITCHING 有权
标题翻译：带调制器路径开关的极性调制变送器
公开(公告)号：US20090111397A1
公开(公告)日：2009-04-30
申请号：US12250104
申请日：2008-10-13
申请人： Marnie Dunsmore , Earl W. McCune, JR. , Gary Do
发明人： Marnie Dunsmore , Earl W. McCune, JR. , Gary Do
IPC分类号： H04B1/04 , H04B1/02
CPC分类号： H04B1/0483 , H03F1/0227 , H03F1/0244 , H03F3/24 , H03F2200/451 , H03F2200/504
摘要： Methods and apparatus for controlling power in a polar modulation transmitter. An exemplary polar modulation transmitter includes a radio frequency power amplifier (RF PA), a phase path having circuitry operable to generate a constant amplitude phase modulated signal, and an amplitude path including an envelope modulator circuit having first and second envelope modulation paths. The RF phase modulated signal is applied to an RF input of the RF PA, while an envelope modulated power supply signal generated by a selected one of the first and second envelope modulation paths is coupled to a power supply input of the RF PA. The second envelope modulation path is selected during times when the power required by the RF PA is below some predetermined power level. During times when the RF PA requires power above the predetermined power level, the first envelope modulation path is selected.
摘要翻译：用于控制极性调制发射机功率的方法和装置。示范性极性调制发射机包括射频功率放大器（RF PA），具有可操作以产生恒定幅度相位调制信号的电路的相位路径，以及包括具有第一和第二包络调制路径的包络调制器电路的幅度路径。 RF相位调制信号被施加到RF PA的RF输入，而由第一和第二包络调制路径中选择的一个产生的包络调制电源信号耦合到RF PA的电源输入端。在RF PA所需的功率低于某个预定功率电平的时间期间，选择第二包络调制路径。在RF PA要求超过预定功率电平的功率的时间期间，选择第一包络调制路径。

20. 发明申请

US20090009243A1 Methods and Apparatus for Controlling Leakage and Power Dissipation in Radio Frequency Power Amplifiers 有权
标题翻译：控制射频功率放大器泄漏和功耗的方法和装置
公开(公告)号：US20090009243A1
公开(公告)日：2009-01-08
申请号：US11773650
申请日：2007-07-05
申请人： Earl W. McCune, JR.
发明人： Earl W. McCune, JR.
IPC分类号： H03C3/00 , G05F3/04 , H03F1/02 , H04B1/00
CPC分类号： H04B1/0483 , H03F1/0205 , H03F1/0261 , H03F3/217 , H03F3/2171 , H03F3/245
摘要： A radio frequency power amplifier (RF PA) apparatus includes an RF PA and a waveform converter. The waveform converter is configured to receive a sinusoidal RF signal and generate a nonsinusoidal RF signal, which is used to drive an active device (e.g., a field effect transistor (FET) or bipolar junction transistor (BJT)) of the RF PA. The nonsinusoidal RF signal, which may comprise a square wave or a substantially-square wave signal, has signal characteristics that result in less leakage through the active device's input-output parasitic capacitance, compared to the leakage that would result if the sinusoidal RF signal was used to drive the active device. The leakage control methods and apparatus of the present invention may be advantageously employed in a variety of applications including, for example, RF polar transmitters.
摘要翻译：射频功率放大器（RF PA）装置包括RF PA和波形转换器。波形转换器被配置为接收正弦RF信号并产生非正弦RF信号，其用于驱动RF PA的有源器件（例如，场效应晶体管（FET）或双极结型晶体管（BJT））。可以包括方波或基本方波信号的非正弦RF信号具有信号特性，其导致通过有源器件的输入输出寄生电容的较少的泄漏，与如果正弦RF信号为用于驱动主动设备。本发明的泄漏控制方法和装置可以有利地用于各种应用中，包括例如RF极性发射器。

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