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：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：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。

公开(公告)号：US20090060089A1

公开(公告)日：2009-03-05

申请号：US11911171

申请日：2006-04-26

申请人： Toru Matsuura ,  Shigeru Morimoto

发明人： Toru Matsuura ,  Shigeru Morimoto

IPC分类号： H04L27/04 ,  H04L27/12 ,  H03M1/66 ,  H04L5/12

CPC分类号： H03F1/3241 ,  H03F1/02 ,  H03F1/0205 ,  H03F3/191 ,  H03F3/24 ,  H03F2200/331 ,  H03G3/004 ,  H04L27/361 ,  H04L27/368

摘要： Provided is a transmitter circuit capable of operating with low distortion and high efficiency even in a modulation method using wide modulation bandwidth. In the transmitter circuit, a signal generation section (11) generates an amplitude signal and an angle-modulated signal. Based on a predetermined characteristic, a compensating filter (12) wave-shaping-processes the amplitude signal. A regulator (14) outputs a signal in accordance with a magnitude of the signal which has been wave-shaping-processed by the compensating filter (12). An amplitude modulator section (15) amplitude-modulates the angle-modulated signal by using the signal outputted from the regulator (14). A characteristic of the compensating filter (12) is an inverse of a transfer characteristic between an input at the regulator (14) and an output at the amplitude modulator section (15).

摘要翻译： 提供了即使在使用宽调制带宽的调制方法中也能够以低失真和高效率工作的发射机电路。 在发送电路中，信号生成部（11）生成振幅信号和角度调制信号。 基于预定特性，波形整形处理振幅信号的补偿滤波器（12）。 调节器（14）根据由补偿滤波器（12）进行波形整形处理的信号的大小输出信号。 振幅调制器部分（15）通过使用从调节器（14）输出的信号来对角度调制信号进行幅度调制。 补偿滤波器（12）的特性是调节器（14）的输入端与幅度调制器部分（15）的输出端之间的传输特性的逆。

公开(公告)号：US20080031381A1

公开(公告)日：2008-02-07

申请号：US11878902

申请日：2007-07-27

申请人： Toru Matsuura ,  Kaoru Ishida

发明人： Toru Matsuura ,  Kaoru Ishida

IPC分类号： H04K1/02

CPC分类号： H04B1/0483 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/32 ,  H03F1/3241 ,  H03F3/245 ,  H03F2200/324 ,  H03F2200/447 ,  H03F2200/468 ,  H03F2200/504 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L27/361

摘要： Provided is a transmission circuit 1 which precisely compensates for an offset characteristic of an amplitude modulation section 15 and which operates with low distortion and high efficiency over a wide output power range. A signal generation section 11 outputs an amplitude signal and an angle-modulated signal. An amplitude amplifying section 14 supplies, to the amplitude modulation section 15, a voltage corresponding to a magnitude of an inputted amplitude signal. The amplitude modulation section 15 amplitude-modulates the angle-modulated signal by the voltage supplied from the amplitude amplifying section 14, thereby outputting a resultant signal as a modulation signal. A temperature measuring section measures a temperature of the amplitude modulation section 15. An offset compensation section 12 calculates an offset compensation value in accordance with a change, in temperature of the amplitude modulation section 15, from the temperature of the amplitude modulation section 15 in an initial state, and adds the calculated offset compensation value to the amplitude signal.

摘要翻译： 提供了一种传输电路1，其精确地补偿幅度调制部分15的偏移特性，并且在宽输出功率范围内以低失真和高效率工作。 信号生成部11输出振幅信号和角度调制信号。 振幅放大部分14向幅度调制部分15提供与所输入的振幅信号的大小相对应的电压。 振幅调制部15通过从幅度放大部14提供的电压对角度调制信号进行振幅调制，从而输出作为调制信号的合成信号。 温度测量部分测量幅度调制部分15的温度。 偏移补偿部12根据振幅调制部15的温度的变化，根据振幅调制部15的初始状态的温度来计算偏移补偿值，并将计算出的偏移补偿值与振幅信号 。

公开(公告)号：US07251462B2

公开(公告)日：2007-07-31

申请号：US10886371

申请日：2004-07-07

申请人： Toru Matsuura ,  Hisashi Adachi ,  Masaharu Udagawa

发明人： Toru Matsuura ,  Hisashi Adachi ,  Masaharu Udagawa

IPC分类号： H04B1/02 ,  H03F3/38 ,  H03F1/26

CPC分类号： H03F1/0222 ,  H03C5/00 ,  H03F1/025 ,  H03F1/0277 ,  H03F2200/372 ,  H03F2203/7239 ,  H04L27/361

摘要： The amplitude modulator comprises: an angle modulator for angle-modulating a phase signal to be inputted; a waveform shaping means in which, (1) when the magnitude of an amplitude signal to be inputted becomes smaller than a first prescribed value, a waveform of the amplitude signal is shaped so that the magnitude of the amplitude signal of the portion which becomes small becomes the first prescribed value; and/or (2) the waveform shaping means in which, when the magnitude of the amplitude signal to be inputted becomes larger than the second prescribed value which is larger than the first prescribed value, the waveform of the amplitude signal is shaped so that the magnitude of the amplitude signal of the portion which becomes larger becomes the second prescribed value; and an amplitude modulator for amplitude modulating the signal of the output of the angle modulator by the signal of the output of the waveform shaping means.

摘要翻译： 幅度调制器包括：角度调制器，用于对要输入的相位信号进行角度调制; 波形整形装置，其中（1）当要输入的振幅信号的幅度变得小于第一规定值时，振幅信号的波形被成形为使得变小的部分的振幅信号的幅度 成为第一个规定值; 和/或（2）波形整形装置，其中当要输入的幅度信号的幅度变得大于大于第一规定值的第二规定值时，振幅信号的波形被成形为使得 变大的部分的幅度信号的大小成为第二规定值; 以及幅度调制器，用于通过波形整形装置的输出的信号对角度调制器的输出的信号进行幅度调制。

公开(公告)号：US20070135117A1

公开(公告)日：2007-06-14

申请号：US11633510

申请日：2006-12-05

申请人： Toru Matsuura ,  Kaoru Ishida

发明人： Toru Matsuura ,  Kaoru Ishida

IPC分类号： H04Q7/20

CPC分类号： H04L27/361 ,  H04L27/368

摘要： A small-size transmission circuit is provided which outputs a transmission signal having high linearity independently of a magnitude of an output power, and operates with high efficiency. A signal generating section generates quadrature data based on input data. A computation section compares an amplitude component of the quadrature data with a predetermined amplitude threshold value, and outputs an amplitude signal, a first phase signal, and a second phase signal. A regulator outputs a voltage controlled depending on the amplitude signal. An angle modulation section and an angle modulation section angle-modulate the phase signal to output first and second angle-modulated signals. An amplitude modulation section and an amplitude modulation section amplitude-modulate the first and second angle-modulated signals using a voltage controlled depending on the amplitude signal to output the angle-modulated and amplitude-modulated signals as a first modulated signal and a second modulated signal. A combining section combines the first and second modulated signals to output a transmission signal.

摘要翻译： 提供了一种小型传输电路，其输出独立于输出功率的大小的高线性度的传输信号，并且以高效率运行。 信号生成部根据输入数据生成正交数据。 计算部分将正交数据的幅度分量与预定幅度阈值进行比较，并输出振幅信号，第一相位信号和第二相位信号。 调节器输出根据振幅信号控制的电压。 角度调制部分和角度调制部分对相位信号进行角度调制以输出第一和第二角度调制信号。 幅度调制部分和幅度调制部分使用根据振幅信号控制的电压对第一和第二角度调制信号进行振幅调制，以输出角度调制和调幅信号作为第一调制信号和第二调制信号 。 组合部分组合第一和第二调制信号以输出传输信号。

公开(公告)号：US07081795B2

公开(公告)日：2006-07-25

申请号：US11255998

申请日：2005-10-24

申请人： Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

发明人： Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura ,  Seiji Fujiwara

IPC分类号： H03F1/26

CPC分类号： H03F1/3241 ,  H03F1/3229 ,  H03F1/3247 ,  H03F1/3276 ,  H03F1/3282

摘要： An amplitude frequency characteristic adjustment circuit 106 is provided downstream of and connected to a distortion generation circuit 105. An amplitude difference between low-frequency-side and high-frequency-side distortion voltages is adjusted by the amplitude frequency characteristic adjustment circuit 106, and then their amplitudes and phases are adjusted by a vector adjustment circuit 107. This configuration makes it possible to suppress simultaneously both of low-frequency-side and high-frequency-side distortion voltages of a distortion generated by a wide-band class-AB power amplifier even if they are different in amplitude and phase.