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11. 发明授权

US08488497B2 Transmission circuit and transmission method 有权
标题翻译：传输电路及传输方式
公开(公告)号：US08488497B2
公开(公告)日：2013-07-16
申请号：US12813407
申请日：2010-06-10
申请人： Toru Matsuura , Kenichi Mori , Wayne S. Lee , Akihiko Matsuoka
发明人： Toru Matsuura , Kenichi Mori , Wayne S. Lee , Akihiko Matsuoka
IPC分类号： H04B7/005 , H04B7/01 , H04L7/033
CPC分类号： H04B7/01 , H03C5/00 , H04B1/0483 , H04L7/033
摘要： A transmission circuit that performs modulation based on a phase difference signal and an amplitude signal includes an asymmetrical phase rotation device. The asymmetrical phase rotation device performs an operation of subtracting 2π from a value of the phase difference signal when the value of the phase difference signal is greater than a predetermined positive threshold value, or an operation of adding 2π to the value of the phase difference signal when the value of the phase difference signal is less than a predetermined negative threshold value. Accordingly, the transmission circuit has distortion reduction characteristics improved uniformly over a range of frequencies higher or lower than a carrier wave band.
摘要翻译：基于相位差信号和幅度信号进行调制的发送电路包括非对称相位旋转装置。不对称相位旋转装置在相位差信号的值大于预定的正阈值时执行从相位差信号的值减去2pi的操作，或者相位差信号的值相加2pi的操作当相位差信号的值小于预定的负阈值时。因此，发送电路具有在比载波频率高或低的频率范围内均匀地改善的失真减小特性。

12. 发明申请

US20110116535A1 METHODS AND APPARATUS FOR REDUCING THE AVERAGE-TO-MINIMUM MAGNITUDE RATIO OF COMMUNICATIONS SIGNALS IN COMMUNICATIONS TRANSMITTERS 有权
标题翻译：用于降低通信发射机中通信信号的平均最小磁通比的方法和装置
公开(公告)号：US20110116535A1
公开(公告)日：2011-05-19
申请号：US12950847
申请日：2010-11-19
申请人： Kenichi Mori , Toru Matsuura , Wayne S. Lee
发明人： Kenichi Mori , Toru Matsuura , Wayne S. Lee
IPC分类号： H04B17/00
CPC分类号： H04L27/361
摘要： A communications transmitter configured to reduce the average-to-minimum magnitude ratio (AMR) of a communications signal includes a symbol mapper, a pulse-shaping filter, an AMR reduction circuit, and a modulator. The symbol mapper operates to generate a sequence of symbols from a binary-source data stream containing a message to be transmitted, and the pulse-shaping filter generates a baseband signal based on the sequence of symbols. The AMR reduction circuit is configured to compare a magnitude of a local minimum of samples of the baseband signal to various magnitude threshold levels, and to modify the baseband signal in one of two manners depending on the relationship of the magnitude of the local minimum and the various threshold levels. Finally, the modulator operates to modulate a carrier signal based on the modulation information contained in the modified baseband signal.
摘要翻译：配置成降低通信信号的平均至最小幅度比（AMR）的通信发射机包括符号映射器，脉冲整形滤波器，AMR降低电路和调制器。符号映射器用于从包含要发送的消息的二进制源数据流生成符号序列，并且脉冲整形滤波器基于符号序列生成基带信号。 AMR降低电路被配置为将基带信号的局部最小采样的幅度与各种幅度阈值电平进行比较，并且以两种方式之一修改基带信号，这取决于局部最小值的幅度与各种阈值水平。最后，调制器根据包含在修改的基带信号中的调制信息进行调制载波信号。

13. 发明授权

US08340209B2 Method and apparatus for providing high efficiency cartesian modulation 有权
标题翻译：用于提供高效率笛卡尔调制的方法和装置
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。

14. 发明申请

US20120002754A1 TRANSMISSION APPARATUS, RADIO COMMUNICATION APPARATUS, AND TRANSMISSION METHOD 有权
标题翻译：传输装置，无线电通信装置和传输方法
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。

15. 发明授权

US07817725B2 Data converter device and data conversion method, and transmitter circuit, communications device and electronic device using the same 有权
标题翻译：数据转换装置和数据转换方法，以及发射机电路，通信装置和使用该装置的电子装置
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。

16. 发明申请

US20090060089A1 POLAR MODULATION TRANSMITTER CIRCUIT AND COMMUNICATIONS DEVICE 有权
标题翻译：极性调制发射机电路和通信设备
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。

17. 发明申请

US20080031381A1 Transmission circuit and communication device 有权
标题翻译：传输电路和通信设备
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。

18. 发明授权

US07251462B2 Modulation circuit device, modulation method and radio communication device 有权
标题翻译：调制电路装置，调制方式和无线通信装置
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。

19. 发明申请

US20070135117A1 Transmission circuit and communication apparatus employing the same 有权
标题翻译：发送电路及采用该电路的通信装置
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。

20. 发明授权

US07081795B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
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.

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