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1. 发明授权

US08483312B2 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至最小幅度比的方法和装置
公开(公告)号：US08483312B2
公开(公告)日：2013-07-09
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： H04L27/00
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。

2. 发明授权

US08295386B2 Nonlinear filter and transmission circuit 有权
标题翻译：非线性滤波器和传输电路
公开(公告)号：US08295386B2
公开(公告)日：2012-10-23
申请号：US12814817
申请日：2010-06-14
申请人： Toru Matsuura , Kenichi Mori , Wayne S. Lee
发明人： Toru Matsuura , Kenichi Mori , Wayne S. Lee
IPC分类号： H04L27/02
CPC分类号： H04L25/03834
摘要： A nonlinear filter includes: a determination unit that determines, based on I and Q signals inputted into the determination unit, whether or not to perform pulse insertion; a rotation detector that detects a rotation direction of the I and Q signals on an IQ plane with respect to the origin of the IQ plane; a pulse generator that generates, when the determination unit determines to perform the pulse insertion, a pulse of which at least one of the direction and the magnitude is determined in accordance with at least the detected rotation direction; and an adder that inserts the pulse into the I and Q signals and outputs resultant I and Q signals.
摘要翻译：非线性滤波器包括：确定单元，其基于输入到确定单元的I和Q信号来确定是否执行脉冲插入; 旋转检测器，其相对于IQ平面的原点检测IQ平面上的I和Q信号的旋转方向; 脉冲发生器，当确定单元确定执行脉冲插入时，至少根据检测到的旋转方向确定至少一个方向和幅度的脉冲; 以及将脉冲插入I和Q信号并输出合成的I和Q信号的加法器。

3. 发明申请

US20110305292A1 NONLINEAR FILTER AND TRANSMISSION CIRCUIT 有权
标题翻译：非线性滤波器和传输电路
公开(公告)号：US20110305292A1
公开(公告)日：2011-12-15
申请号：US12814817
申请日：2010-06-14
申请人： Toru Matsuura , Kenichi Mori , Wayne S. Lee
发明人： Toru Matsuura , Kenichi Mori , Wayne S. Lee
IPC分类号： H04L27/02 , H04L25/40
CPC分类号： H04L25/03834
摘要： A nonlinear filter includes: a determination unit that determines, based on I and Q signals inputted into the determination unit, whether or not to perform pulse insertion; a rotation detector that detects a rotation direction of the I and Q signals on an IQ plane with respect to the origin of the IQ plane; a pulse generator that generates, when the determination unit determines to perform the pulse insertion, a pulse of which at least one of the direction and the magnitude is determined in accordance with at least the detected rotation direction; and an adder that inserts the pulse into the I and Q signals and outputs resultant I and Q signals.
摘要翻译：非线性滤波器包括：确定单元，其基于输入到确定单元的I和Q信号来确定是否执行脉冲插入; 旋转检测器，其相对于IQ平面的原点检测IQ平面上的I和Q信号的旋转方向; 脉冲发生器，当确定单元确定执行脉冲插入时，至少根据检测到的旋转方向确定至少一个方向和幅度的脉冲; 以及将脉冲插入I和Q信号并输出合成的I和Q信号的加法器。

4. 发明申请

US20110305171A1 TRANSMISSION CIRCUIT AND TRANSMISSION METHOD 有权
标题翻译：传输电路和传输方法
公开(公告)号：US20110305171A1
公开(公告)日：2011-12-15
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 , H03L7/00 , H03C3/38
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。非对称相位旋转装置执行减去2＆pgr的操作; 当相位差信号的值大于预定的正阈值时的相位差信号的值，或者加上2＆pgr的操作; 当相位差信号的值小于预定的负阈值时相位差信号的值。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。

5. 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。

6. 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。

7. 发明授权

US08576942B2 High efficiency transmitter 有权
标题翻译：高效率变送器
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。

8. 发明授权

US07746187B2 Self-calibrating modulator apparatuses and methods 有权
标题翻译：自校准调制装置及方法
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。

9. 发明申请

US20090295493A1 Self-Calibrating Modulator Apparatuses and Methods 有权
标题翻译：自校准调制器装置及方法
公开(公告)号：US20090295493A1
公开(公告)日：2009-12-03
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 , G01R23/00
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。

10. 发明申请

US20130058435A1 HIGH EFFICIENCY TRANSMITTER 有权
标题翻译：高效发射机
公开(公告)号：US20130058435A1
公开(公告)日：2013-03-07
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： H04L27/04 , H04L25/49
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矢量的线性和，其形成角度（＆pgr / / 4），并且包括在表示由（ - ＆pgr; / 2），0，（＆pgr; / 2），＆pgr;（-3＆pgr; / 4），（ - ＆pgr; / 4） / 4），并且用于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（ - ＆pgr; / 2），0，（＆pgr; / 2），＆pgr;（-3＆pgr; / 4），（ - ＆pgr; / 4），（＆ ; / 4）和（3＆pgr; / 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。

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