公开(公告)号：US08798191B2

公开(公告)日：2014-08-05

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 ,  H03F3/24 ,  H03F3/195 ,  H03F3/189 ,  H03F1/02 ,  H03F1/32 ,  H04B1/04

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：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。

公开(公告)号：US08378870B1

公开(公告)日：2013-02-19

申请号：US13227268

申请日：2011-09-07

申请人： Toru Matsuura

发明人： Toru Matsuura

IPC分类号： H03M1/66

CPC分类号： H03M1/0665 ,  H03M1/74 ,  H03M3/40 ,  H03M3/41 ,  H03M3/502

摘要： The present invention provides a DAC (Digital to Analog Converter) capable of generating a transfer function having a notch for reducing an error signal level in a desired frequency band.The DAC of the present invention includes a switch bank to which at least two reference signals are inputted and which selects any of these signals and outputs the selected signal through a plurality of paths, and an amplitude-phase control section which controls a reference signal selection operation of the switch bank on the basis of an input signal.

摘要翻译： 本发明提供一种DAC（数模转换器），能够产生具有用于降低期望频带中的误差信号电平的陷波的传递函数。 本发明的DAC包括一个开关组，输入至少两个参考信号并选择这些信号中的任一个并通过多条路径输出所选择的信号;以及幅度相位控制部分，其控制参考信号选择 根据输入信号对开关组进行操作。

公开(公告)号：US20120020390A1

公开(公告)日：2012-01-26

申请号：US13256894

申请日：2010-12-17

申请人： Toru Matsuura ,  Kenji Miyanaga

发明人： Toru Matsuura ,  Kenji Miyanaga

IPC分类号： H04B1/38 ,  H03C1/50 ,  H04B7/00 ,  H03C3/02

CPC分类号： H04L27/20 ,  H03C3/095

摘要： Disclosed are an angle modulator, a transmission apparatus, and a radio communication apparatus that can compensate phase discontinuity when an operational mode of a voltage controlled oscillator is switched. Angle modulator (100) includes phase difference detection section (150) that detects a difference of phases between an input signal of subtractor (141) and an angle modulated signal, using the result of subtraction by subtractor (141) of frequency locked loop circuit (140); correction control section (160) that generates a control signal for compensating that difference of phases based on that difference of phases; correction section (120) that corrects the phase of the angle modulated signal by adding the control signal to an input signal of angle modulator (100), an input signal of loop filter (142), or an input signal of VCO (143) during a predetermined period after VCO (143) switches the operational mode (from time t3 to time t4).

摘要翻译： 公开了一种角度调制器，发送装置和无线电通信装置，其可以在切换压控振荡器的操作模式时补偿相位不连续性。 角度调制器（100）包括相位差检测部分（150），其使用锁相环电路的减法器（141）减法的结果来检测减法器（141）的输入信号与角度调制信号之间的相位差 140）; 校正控制部分（160），其基于所述相位差产生用于补偿所述相位差的控制信号; 校正部分（120），其通过将控制信号与角度调制器（100）的输入信号，环路滤波器（142）的输入信号或VCO（143）的输入信号相加来校正角度调制信号的相位， 在VCO（143）切换操作模式（从时间t3到时间t4）之后的预定时间段。

公开(公告)号：US07979037B2

公开(公告)日：2011-07-12

申请号：US11878286

申请日：2007-07-23

申请人： Toru Matsuura

发明人： Toru Matsuura

IPC分类号： H04B1/04

CPC分类号： H03C3/0941 ,  H03C3/095 ,  H03C3/0975

摘要： A bandpass type delta sigma modulation section performs delta sigma modulation on an inputted modulation signal such that quantization noise is reduced in a frequency band which requires low noise. A low pass filter removes a noise component in a high frequency region from the signal on which the delta sigma modulation has been performed. A frequency modulation circuit reduces noise in the frequency band which requires low noise with the bandpass type delta sigma modulation section and the low pass filter, and reduces noise in the vicinity of a direct current component DC with a feedback comparison section and a loop filter.

摘要翻译： 带通型ΔΣ调制部分对输入的调制信号执行ΔΣ调制，使得量化噪声在需要低噪声的频带中减小。 低通滤波器从已经执行了Δ-Σ调制的信号中去除高频区域中的噪声分量。 频率调制电路通过带通型ΔΣ调制部分和低通滤波器降低需要低噪声的频带中的噪声，并且通过反馈比较部分和环路滤波器降低直流分量DC附近的噪声。

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。

公开(公告)号：US07822392B2

公开(公告)日：2010-10-26

申请号：US11936433

申请日：2007-11-07

申请人： Toru Matsuura

发明人： Toru Matsuura

IPC分类号： H04B1/66 ,  H04B1/04

CPC分类号： H03C3/0925 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0958

摘要： Provided is a frequency modulation circuit for outputting a frequency-modulated signal with a high precision. A VCO 13 includes a first variable capacitor 132 having a predetermined capacitance change rate, and a second variable capacitor 133 having a greater capacitance change rate than that of the first variable capacitor 132. When the frequency modulation circuit is applied in a narrowband modulation method, a switch 15 switches a connection path of an open loop such that an input terminal and the first variable capacitor 132 are connected. On the other hand, when the frequency modulation circuit is applied in a wideband modulation method, the switch 15 switches the connection path of the open loop such that the input terminal and the second variable capacitor 133 are connected.

摘要翻译： 提供了一种用于以高精度输出调频信号的频率调制电路。 VCO13包括具有预定电容变化率的第一可变电容器132和具有比第一可变电容器132的电容变化率更大的电容变化率的第二可变电容器133.当以窄带调制方式应用频率调制电路时， 开关15切换开环的连接路径，使得输入端子和第一可变电容器132连接。 另一方面，当以宽带调制方式应用频率调制电路时，开关15切换开环的连接路径，使得输入端子和第二可变电容器133连接。

公开(公告)号：US20100203852A1

公开(公告)日：2010-08-12

申请号：US12762601

申请日：2010-04-19

申请人： Toru MATSUURA

发明人： Toru MATSUURA

IPC分类号： H04B1/04

CPC分类号： H03C3/0941 ,  H03C3/095 ,  H03C3/0975

摘要： A bandpass type delta sigma modulation section 15 performs delta sigma modulation on an inputted modulation signal such that quantization noise is reduced in a frequency band which requires low noise. An LPF 16 removes a noise component in a high frequency region from the signal on which the delta sigma modulation has been performed. A frequency modulation circuit 1 reduces noise in the frequency band which requires low noise with the bandpass type delta sigma modulation section 15 and the LPF 16, and reduces noise in the vicinity of a direct current component DC with a feedback comparison section 11 and a loop filter 12.

摘要翻译： 带通型ΔΣ调制部分15对输入的调制信号执行ΔΣ调制，使得量化噪声在需要低噪声的频带中减小。 LPF16从已经执行了ΔΣ调制的信号中去除高频区域中的噪声分量。 频率调制电路1通过带通型ΔΣ调制部分15和LPF 16降低需要低噪声的频带中的噪声，并且通过反馈比较部分11和环路减小直流分量DC附近的噪声 过滤器12。

公开(公告)号：US07742549B2

公开(公告)日：2010-06-22

申请号：US11324332

申请日：2006-01-04

申请人： Toru Matsuura

发明人： Toru Matsuura

IPC分类号： H04B7/10 ,  H04L1/02

CPC分类号： H04B1/126

摘要： A dual-polarization receiver for receiving polarized wave signals whose directions are different from each other has receiving demodulation units of a working system and a backup system for one of the polarized wave signals, and receiving demodulation units of a working system and a backup system for the other of the polarized wave signals. RF local oscillation circuits of frequency converting circuits of the working system are connected with a common REF oscillation circuit and RF local oscillation circuits of frequency converting circuits of the backup system are connected with a common REF oscillation circuit.

摘要翻译： 用于接收方向不同的偏振波信号的双极化接收机已经接收了用于偏振波信号中的一个的工作系统和备用系统的解调单元，并且接收工作系统的解调单元和用于 另一个是偏振波信号。 工作系统的变频电路的RF本地振荡电路与公共REF振荡电路连接，备用系统的变频电路的RF本地振荡电路与公共REF振荡电路连接。

公开(公告)号：US07583940B2

公开(公告)日：2009-09-01

申请号：US11605343

申请日：2006-11-29

申请人： Toru Matsuura ,  Shigeru Morimoto

发明人： Toru Matsuura ,  Shigeru Morimoto

IPC分类号： H04B1/02 ,  H04B1/04

CPC分类号： H04L27/366 ,  H04L27/361

摘要： A transmission circuit is provided which can output a stable transmission signal independently of the temperature characteristics of an amplitude modulating section. A signal generating section generates an amplitude signal and a phase signal. A regulator supplies a voltage which is controlled, depending on the amplitude signal, to the amplitude modulating section. An angle modulating section subjects the phase signal to angle modulation to output an angle-modulated signal. A temperature detecting section outputs temperature information of the amplitude modulating section. A gain control section controls a gain of a variable gain amplifier based on the temperature information of the amplitude modulating section. The variable gain amplifier amplifies the angle-modulated signal using the gain controlled by the gain control section. The amplitude modulating section subjects the angle-modulated signal to amplitude modulation using a voltage which is controlled, depending on the amplitude signal, to output an amplitude-modulated signal.

摘要翻译： 提供一种传输电路，其能够独立于幅度调制部分的温度特性输出稳定的传输信号。 信号生成部生成振幅信号和相位信号。 调节器根据幅度信号向幅度调制部分提供被控制的电压。 角度调制部使相位信号进行角度调制以输出角度调制信号。 温度检测部输出振幅调制部的温度信息。 增益控制部根据振幅调制部的温度信息来控制可变增益放大器的增益。 可变增益放大器使用由增益控制部分控制的增益来放大角度调制信号。 幅度调制部分使用根据振幅信号被控制的电压来使角度调制信号进行幅度调制，以输出幅度调制信号。