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1.发明授权公开(公告)号：US08340209B2
公开(公告)日：2012-12-25
申请号：US12554863
申请日：2009-09-04
申请人： Paul Cheng-Po Liang , Koji Takinami , Hua Wang , Toru Matsuura
发明人： Paul Cheng-Po Liang , Koji Takinami , Hua Wang , Toru Matsuura
CPC分类号： H04L25/4917
摘要： The disclosure relates to a method and apparatus for providing efficient signal transmission. Conventional linear amplifiers are most efficient when operated in compressed mode. In the compressed mode, the digital power amplifier switches between the on and off modes. A digital power amplifier operates in compressed mode only if the incoming signal is an on-off constant envelop signal. In one embodiment, the disclosure provides a method and apparatus for converting a digital baseband signal to on-off constant envelop signals for processing through binary-weighted or thermometer-weighted amplifier which are operated in compressed mode.
摘要翻译： 本公开涉及一种用于提供有效信号传输的方法和装置。 传统的线性放大器在压缩模式下工作时效率最高。 在压缩模式下，数字功率放大器在导通和关断模式之间切换。 数字功率放大器仅在输入信号为开 - 关恒定包络信号时才以压缩模式工作。 在一个实施例中，本公开提供了一种用于将数字基带信号转换为开 - 关恒定包络信号以便通过以压缩模式操作的二进制加权或温度计加权放大器进行处理的方法和装置。
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2.发明申请公开(公告)号：US20110018640A1
公开(公告)日：2011-01-27
申请号：US12508464
申请日：2009-07-23
IPC分类号： H03F1/00
CPC分类号： H03F1/0227 , H03F1/02 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/351 , H04B2001/045
摘要： A broad power band transmitter utilizing a duty cycle modulator achieves 80dB of power range for 3G signals. The present invention greatly improves the efficiency of transmitters used in mobile phones, for example, by using the duty cycle modulator during medium and low power levels of the transmitting power amplifier. The power amplifier operates in three different modes based upon the amplifier power level selected. The power amplifier operates in an EER mode during high power levels, in a DCM ERR mode during medium power levels, and in a DCM mode during low power levels.
摘要翻译： 利用占空比调制器的宽带功率带发射机实现3G信号的80dB的功率范围。 本发明大大提高了在移动电话中使用的发射机的效率，例如通过在发射功率放大器的中等和低功率电平期间使用占空比调制器。 功率放大器基于选择的放大器功率电平在三种不同的模式下工作。 功率放大器在高功率电平下处于EER模式，在中等功率电平下处于DCM ERR模式，在低功率级下处于DCM模式。
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公开(公告)号：US08385469B2
公开(公告)日：2013-02-26
申请号：US12690870
申请日：2010-01-20
申请人： Hua Wang , Toru Matsuura , Gregoire le Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
发明人： Hua Wang , Toru Matsuura , Gregoire le Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
IPC分类号： H03C3/00
摘要： A low cost high-efficiency all-digital transmitter using all-digital power amplifiers (“DPA”) and various mapping techniques to generate an output signal, which substantially reproduces a baseband signal at a carrier frequency. A baseband signal generator generates a baseband signal which is quantized by a signal processor using a quantization map. A DPA control mapper outputs control signals to phase selectors using the quantized signal and a quantization table. Each phase selector receives one of the control signals and outputs a waveform at a carrier frequency with a phase corresponding to the control signals, or an inactive signal. Each DPA in a DPA array has an assigned weight, receives one of the waveforms from the phase selectors, and outputs a power signal according to the weight of the DPA and the phase of the received waveform. The combined power signal substantially reproduces the baseband signal at the carrier frequency.
摘要翻译： 使用全数字功率放大器（DPA）和各种映射技术的低成本高效率全数字发射机来产生输出信号，其基本上以载波频率再现基带信号。 基带信号发生器生成使用量化映射由信号处理器量化的基带信号。 DPA控制映射器使用量化信号和量化表将控制信号输出到相位选择器。 每个相位选择器接收一个控制信号，并以与控制信号相对应的相位的载波频率或无效信号输出波形。 DPA阵列中的每个DPA具有分配的权重，从相位选择器接收波形之一，并根据DPA的权重和接收波形的相位输出功率信号。 组合功率信号基本上以载波频率再现基带信号。
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公开(公告)号：US20110176636A1
公开(公告)日：2011-07-21
申请号：US12690870
申请日：2010-01-20
申请人： Hua Wang , Toru Matsuura , Gregoire Ie Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
发明人： Hua Wang , Toru Matsuura , Gregoire Ie Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
IPC分类号： H04L27/12
摘要： A low cost high-efficiency all-digital transmitter using all-digital power amplifiers (“DPA”) and various mapping techniques to generate an output signal, which substantially reproduces a baseband signal at a carrier frequency. A baseband signal generator generates a baseband signal which is quantized by a signal processor using a quantization map. A DPA control mapper outputs control signals to phase selectors using the quantized signal and a quantization table. Each phase selector receives one of the control signals and outputs a waveform at a carrier frequency with a phase corresponding to the control signals, or an inactive signal. Each DPA in a DPA array has an assigned weight, receives one of the waveforms from the phase selectors, and outputs a power signal according to the weight of the DPA and the phase of the received waveform. The combined power signal substantially reproduces the baseband signal at the carrier frequency.
摘要翻译： 使用全数字功率放大器（“DPA”）和各种映射技术的低成本高效全数字发射机产生输出信号，其基本上以载波频率再现基带信号。 基带信号发生器生成使用量化映射由信号处理器量化的基带信号。 DPA控制映射器使用量化信号和量化表将控制信号输出到相位选择器。 每个相位选择器接收一个控制信号，并以与控制信号相对应的相位的载波频率或无效信号输出波形。 DPA阵列中的每个DPA具有分配的权重，从相位选择器接收波形之一，并根据DPA的权重和接收波形的相位输出功率信号。 组合功率信号基本上以载波频率再现基带信号。
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公开(公告)号：US20110058622A1
公开(公告)日：2011-03-10
申请号：US12554863
申请日：2009-09-04
申请人： Paul Cheng-Po Liang , Koji Takinami , Hua Wang , Toru Matsuura
发明人： Paul Cheng-Po Liang , Koji Takinami , Hua Wang , Toru Matsuura
IPC分类号： H04L25/49
CPC分类号： H04L25/4917
摘要： The disclosure relates to a method and apparatus for providing efficient signal transmission. Conventional linear amplifiers are most efficient when operated in compressed mode. In the compressed mode, the digital power amplifier switches between the on and off modes. A digital power amplifier operates in compressed mode only if the incoming signal is an on-off constant envelop signal. In one embodiment, the disclosure provides a method and apparatus for converting a digital baseband signal to on-off constant envelop signals for processing through binary-weighted or thermometer-weighted amplifier which are operated in compressed mode.
摘要翻译： 本公开涉及一种用于提供有效信号传输的方法和装置。 传统的线性放大器在压缩模式下工作时效率最高。 在压缩模式下，数字功率放大器在导通和关断模式之间切换。 数字功率放大器仅在输入信号为开 - 关恒定包络信号时才以压缩模式工作。 在一个实施例中，本公开提供了一种用于将数字基带信号转换为开 - 关恒定包络信号以便通过以压缩模式操作的二进制加权或温度计加权放大器进行处理的方法和装置。
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6.发明授权Transmitter utilizing a duty cycle envelope reduction and restoration modulator 有权发射机利用占空比包络减少和恢复调制器公开(公告)号：US08131234B2
公开(公告)日：2012-03-06
申请号：US12508464
申请日：2009-07-23
CPC分类号： H03F1/0227 , H03F1/02 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/351 , H04B2001/045
摘要： A broad power band transmitter utilizing a duty cycle modulator achieves 80dB of power range for 3G signals. The present invention greatly improves the efficiency of transmitters used in mobile phones, for example, by using the duty cycle modulator during medium and low power levels of the transmitting power amplifier. The power amplifier operates in three different modes based upon the amplifier power level selected. The power amplifier operates in an EER mode during high power levels, in a DCM ERR mode during medium power levels, and in a DCM mode during low power levels.
摘要翻译： 利用占空比调制器的宽带功率带发射机实现3G信号的80dB的功率范围。 本发明大大提高了在移动电话中使用的发射机的效率，例如通过在发射功率放大器的中等和低功率电平期间使用占空比调制器。 功率放大器基于选择的放大器功率电平在三种不同的模式下工作。 功率放大器在高功率电平下处于EER模式，在中等功率电平下处于DCM ERR模式，在低功率级下处于DCM模式。
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7.发明申请METHOD AND SYSTEM FOR A GLITCH CORRECTION IN AN ALL DIGITAL PHASE LOCK LOOP 有权用于在所有数字相位锁定环中进行校正的方法和系统公开(公告)号：US20120013363A1
公开(公告)日：2012-01-19
申请号：US12838754
申请日：2010-07-19
CPC分类号： H03L7/16 , H03L2207/50
摘要： The present invention relates to a method and system for glitch correction in an all digital phase lock loop. An all digital phase lock loop can include a phase error signal generation unit, a multi-phase oscillator, a glitch correction unit, and a phase to digital converter. The phase to digital converter receives a multi-phase signal from the multi-phase oscillator and generates a phase signal. The error signal generation unit receives the phase signal and a reference phase signal and generates a phase error signal, which is fed to the glitch correction unit. The glitch correction unit removes the glitches in the phase error signal by a portion of the phase error signal. The phase lock loop can also include a phase rotator and a calibration block. The calibration block instructs the phase rotator to rotate the multi-phase signal by the phase rotation which generates the minimum number of glitches.
摘要翻译： 本发明涉及一种全数字锁相环中毛刺校正的方法和系统。 全数字锁相环可以包括相位误差信号生成单元，多相位振荡器，毛刺校正单元和相位数字转换器。 相数转换器从多相振荡器接收多相信号并产生相位信号。 误差信号生成单元接收相位信号和参考相位信号，并产生馈送到毛刺校正单元的相位误差信号。 毛刺校正单元通过相位误差信号的一部分去除相位误差信号中的毛刺。 锁相环还可以包括相位旋转器和校准块。 校准块指示相位旋转器通过相位旋转旋转多相信号，该相位旋转产生最小数量的毛刺。
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公开(公告)号：US08095093B2
公开(公告)日：2012-01-10
申请号：US12203361
申请日：2008-09-03
申请人： Koji Takinami , Paul Cheng-Po Liang
发明人： Koji Takinami , Paul Cheng-Po Liang
CPC分类号： H04B1/38 , H03F1/02 , H03F3/24 , H04B1/0057 , H04B2001/045
摘要： Methods and apparatus for transmitting communications signals that are both power efficient and effective at avoiding or reducing transmitter-generated receive band noise. An exemplary transceiver apparatus includes a multi-mode transmitter that is configurable to operate in a plurality of operating modes (e.g., a polar mode, a quadrature mode and a hybrid mode), a receiver, and an operating mode controller. The operating mode controller is configured to control which operating mode the transmitter is to operate, depending on one or more of a transmit (Tx) power, receive (Rx) power, the Tx power relative to the Rx power, a level of frequency separation between a Tx frequency band and a Rx frequency band (Tx/Rx band separation), and modulation type employed by the transmitter.
摘要翻译： 用于发送通信信号的方法和装置，其功率有效并且有效地避免或减少发射机产生的接收频带噪声。 示例性收发器装置包括可配置为以多种操作模式（例如，极坐标模式，正交模式和混合模式），接收器和操作模式控制器操作的多模式发射器。 操作模式控制器被配置为根据发射（Tx）功率，接收（Rx）功率，相对于Rx功率的Tx功率，频率分离水平中的一个或多个来控制发射机将要操作的操作模式 在Tx频带和Rx频带之间（Tx / Rx频带分离）以及由发射机使用的调制类型。
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9.发明授权High-efficiency envelope tracking systems and methods for radio frequency power amplifiers 有权射频功率放大器的高效率包络跟踪系统和方法公开(公告)号：US07808323B2
公开(公告)日：2010-10-05
申请号：US12126475
申请日：2008-05-23
申请人： Koji Takinami , Paul Cheng-Po Liang
发明人： Koji Takinami , Paul Cheng-Po Liang
IPC分类号： H03F3/04
CPC分类号： G05F1/565 , H02M2001/0045 , H03F1/0222 , H03F3/195 , H03F3/24 , H03F2200/451 , H03F2200/456 , H03F2200/462 , H03F2200/481
摘要： High-efficiency envelope tracking (ET) methods and apparatus for dynamically controlling power supplied to radio frequency power amplifiers (RFPAs). An exemplary ET circuit includes a switch-mode converter coupled in parallel with a split-path linear regulator. The switch-mode converter is configured to generally track an input envelope signal Venv and supply the current needs of a load (e.g., an RFPA). The split-path linear regulator compensates for inaccurate envelope tracking by sourcing or sinking current to the load via a main current path. A current sense path connected in parallel with the main current path includes a current sense resistor used by a hysteresis comparator to control the switching of the switch-mode converter. The split-path linear regulator is configured so that current flowing in the current sense path is a lower, scaled version of the current flowing in the main current path.
摘要翻译： 用于动态控制提供给射频功率放大器（RFPA）的功率的高效率包络跟踪（ET）方法和装置。 示例性ET电路包括与分离路径线性调节器并联耦合的开关模式转换器。 开关模式转换器被配置为通常跟踪输入包络信号Venv并提供负载（例如，RFPA）的当前需求。 分路通路线性调节器通过通过主电流路径将电流供给或吸收负载来补偿不准确的包络跟踪。 与主电流路径并联连接的电流检测路径包括由滞环比较器使用的电流检测电阻器来控制开关模式转换器的开关。 分路线性调节器被配置为使得在电流感测路径中流动的电流是在主电流路径中流动的电流的较低的缩放版本。
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10.发明授权公开(公告)号：US08489046B2
公开(公告)日：2013-07-16
申请号：US12176570
申请日：2008-07-21
申请人： Paul Cheng-Po Liang , Koji Takinami
发明人： Paul Cheng-Po Liang , Koji Takinami
CPC分类号： H04B1/66
摘要： A multi-mode communications transmitter includes a signal decomposer that converts rectangular-coordinate in-channel and quadrature channel signals into polar-coordinate amplitude and angle component signals and form therefrom first and second modulation signals. The signal decomposition process performed by the signal decomposer combines envelope-reduction and restoration (ERR) with filtering to reduce the bandwidths of the first and second modulation signals compared to the bandwidths of the unmodified amplitude and angle component signals. The reduction in signal bandwidths eases the design requirements of the electrical components needed to process and generate the signals applied to the power supply and radio frequency (RF) input ports of the multi-mode communications transmitter's power amplifier (PA). It also makes the multi-mode communications transmitter more forgiving to gain and delay mismatches between the signals applied to the power supply and RF input ports of the PA, compared to conventional polar modulation transmitters.
摘要翻译： 多模式通信发射机包括信号分解器，其将矩形坐标的信道内和正交信道信号转换为极坐标振幅和角度分量信号，并从其形成第一和第二调制信号。 由信号分解器进行的信号分解处理将包络减少和恢复（ERR）与滤波相结合，以与未修改的幅度和角度分量信号的带宽相比降低第一和第二调制信号的带宽。 信号带宽的减少可以减轻处理和产生施加到多模式通信发射机功率放大器（PA）的电源和射频（RF）输入端口的信号所需的电气部件的设计要求。 与传统的极性调制发射机相比，它还使得多模式通信发射机更加宽容地获得并延迟了施加到PA的电源和RF输入端口的信号之间的不匹配。
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