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

CPC分类号： H04L27/36 ,  H03D7/165

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。

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

CPC分类号： H04L27/36 ,  H03D7/165

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。

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

IPC分类号： H04L25/34 ,  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。

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。

公开(公告)号：US20110018640A1

公开(公告)日：2011-01-27

申请号：US12508464

申请日：2009-07-23

申请人： Paul Cheng-Po Liang ,  Koji Takinami ,  Toru Matsuura

发明人： Paul Cheng-Po Liang ,  Koji Takinami ,  Toru Matsuura

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。

公开(公告)号：US08131234B2

公开(公告)日：2012-03-06

申请号：US12508464

申请日：2009-07-23

申请人： Paul Cheng-Po Liang ,  Koji Takinami ,  Toru Matsuura

发明人： Paul Cheng-Po Liang ,  Koji Takinami ,  Toru Matsuura

IPC分类号： H01Q11/12 ,  H04B1/04

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。

公开(公告)号：US08576942B2

公开(公告)日：2013-11-05

申请号：US13227264

申请日：2011-09-07

申请人： Toru Matsuura ,  Wayne S. Lee ,  Tomoya Urushihara ,  Toshifumi Nakatani

发明人： Toru Matsuura ,  Wayne S. Lee ,  Tomoya Urushihara ,  Toshifumi Nakatani

IPC分类号： H04K1/02

CPC分类号： H04L27/367 ,  H04L27/361

摘要： A transmitter includes: a decoder for transforming an IQ signal into a linear sum of two vectors which have non-negative coefficients, respectively, which form an angle of (π/4), and which are included in eight vectors representing directions indicated by eight angles of (−π/2), 0, (π/2), π, (−3π/4), (−π/4), (π/4), and (3π/4), respectively, and for outputting information upon magnitudes and angles of the two vectors; a phase generator for generating eight phase signals corresponding to phases of (−π/2), 0, (π/2), π, (−3π/4), (−π/4), (π/4), and (3π/4), respectively, and outputting the eight phase signals; and a selector for selecting two phase signals having phases equivalent to angles of the two vectors, from among the eight phase signals, and amplifying the two phase signals having been selected, based on the information upon the magnitudes and the angles, and outputting, as a plurality of amplification signals, the two phase signals having been amplified.

摘要翻译： 发射机包括：解码器，用于将IQ信号变换成分别具有非负系数的两个向量的线性和，其形成角度（pi / 4），并且被包括在表示由八 （-pi / 2），0，（pi / 2），pi，（-3pi / 4），（-pi / 4），（pi / 4）和（3pi / 4） 根据两个向量的幅度和角度输出信息; 相位发生器，用于产生对应于（-pi / 2），0，（pi / 2），pi，（-3pi / 4），（-pi / 4），（pi / 4） （3pi / 4），并输出八个相位信号; 以及选择器，用于从八个相位信号中选择具有相当于两个矢量的角度的相位的两相信号，并且基于关于幅度和角度的信息来放大已经被选择的两个相位信号，并输出为 多个放大信号，两相信号已被放大。

公开(公告)号：US20120002754A1

公开(公告)日：2012-01-05

申请号：US13256186

申请日：2010-12-17

申请人： Toru Matsuura

发明人： Toru Matsuura

IPC分类号： H04L27/04

CPC分类号： H03F1/3247 ,  H03F1/0222 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/451 ,  H04B1/0475

摘要： Disclosed is a transmission apparatus, a radio communication apparatus, and a transmission method for making it possible to obtain stable characteristics by controlling the difference of time between an amplitude signal and a phase signal to an optimal point, without depending on a modulated signal nor making the circuit size larger. A multiplier (170) generates, in a pseudo manner, a digital modulated signal corresponding to a signal that is obtained by performing analog to digital conversion on a modulated signal that is generated by an amplitude modulator (140), by multiplying a digital amplitude signal that is obtained by performing analog to digital conversion on an amplitude signal by a digital angle modulated signal corresponding to a signal that is obtained by performing analog to digital conversion on an angle modulated signal. Distortion calculation section (180) calculates distortion of the digital modulated signal, control section (190) controls delay time based on the distortion of the digital modulated signal, and delay adjustment section (130) adjusts delay time until the amplitude signal is input to amplitude modulator (140), or delay time until the angle modulated signal is input to amplitude modulator (140).

摘要翻译： 公开了一种发送装置，无线电通信装置和发送方法，用于通过将幅度信号和相位信号之间的时间差控制到最佳点来获得稳定的特性，而不依赖于调制信号，也不会使 电路尺寸较大。 乘法器（170）以伪方式产生与通过对由振幅调制器（140）产生的调制信号进行模数转换而获得的信号相对应的数字调制信号，通过将数字幅度信号 通过对与通过对角度调制信号进行模数转换获得的信号相对应的数字角度调制信号对振幅信号进行模数转换而获得。 失真计算部（180）计算数字调制信号的失真，控制部（190）基于数字调制信号的失真来控制延迟时间，延迟调整部（130）调整延迟时间，直到振幅信号输入到振幅 调制器（140）或直到角度调制信号被输入到幅度调制器（140）的延迟时间。

公开(公告)号：US07817725B2

公开(公告)日：2010-10-19

申请号：US11074677

申请日：2005-03-09

申请人： Toru Matsuura ,  Hisashi Adachi

发明人： Toru Matsuura ,  Hisashi Adachi

IPC分类号： H04B14/06

CPC分类号： H03M3/368 ,  H03M3/458

摘要： The present invention aims to provide a transmitter circuit that is capable of suppressing quantization noise and operating with a high efficiency, a data converter section 13 and a data conversion method for use therein, and a communications device using the same. The data converter section 13 of the present invention performs a predetermined data conversion operation on an input signal. The data converter section 13 includes: a signal processing section 133 for discretizing the input signal to produce a signal having a lower resolution magnitude-wise than that of the input signal; a subtractor section 134 for subtracting the input signal from the signal having a lower resolution to extract quantization noise; a filter 135 for extracting quantization noise near an intended wave frequency; and a subtractor section 136 for removing the quantization noise near the intended wave frequency from the signal having a lower resolution.

摘要翻译： 本发明旨在提供一种能够抑制量化噪声和高效率操作的发射机电路，数据转换器部分13及其中使用的数据转换方法，以及使用该发射机电路的通信装置。 本发明的数据转换器部分13对输入信号执行预定的数据转换操作。 数据转换器部分13包括：信号处理部分133，用于离散输入信号以产生具有比输入信号幅度更小的分辨率的信号; 减法器部分134，用于从具有较低分辨率的信号中减去输入信号以提取量化噪声; 用于提取预期波频附近的量化噪声的滤波器135; 以及用于从具有较低分辨率的信号中去除预期波频率附近的量化噪声的减法器部分136。

公开(公告)号：US07746187B2

公开(公告)日：2010-06-29

申请号：US12131417

申请日：2008-06-02

申请人： Wayne S. Lee ,  Akira Kato ,  Toru Matsuura

发明人： Wayne S. Lee ,  Akira Kato ,  Toru Matsuura

IPC分类号： H03C3/00

CPC分类号： H03C3/0941 ,  H03C3/08 ,  H03C3/095 ,  H03C3/0975 ,  H03C3/0991 ,  H03C5/00

摘要： A self-calibrating modulator apparatus includes a modulator having a controlled oscillator and an oscillator gain calibration circuit. The oscillator gain calibration circuit includes an oscillator gain coefficient calculator configured to calculate a plurality of frequency dependent oscillator gain coefficients from results of measurements taken at the output of the controlled oscillator in response to a test pattern signal representing a plurality of different reference frequencies. The plurality of frequency dependent gain coefficients determined from the calibration process are stored in a look up table (LUT), where they are made available after the calibration process ends to scale a modulation signal applied to the modulator. By scaling the modulation signal prior to it being applied to the control input of the controlled oscillator, the nonlinear response of the controlled oscillator is countered and the modulation accuracy of the modulator is thereby improved.

摘要翻译： 自校准调制器装置包括具有受控振荡器和振荡器增益校准电路的调制器。 振荡器增益校准电路包括振荡器增益系数计算器，其被配置为响应于表示多个不同参考频率的测试模式信号，从受控振荡器的输出处获得的测量结果计算多个频率相关振荡器增益系数。 从校准过程确定的多个与频率相关的增益系数被存储在查找表（LUT）中，在校准过程结束之后它们可用以缩放施加到调制器的调制信号。 通过在将调制信号应用于受控振荡器的控制输入之前缩放调制信号，可以对受控振荡器的非线性响应进行调整，从而提高调制器的调制精度。