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31. 发明授权

US07742541B2 Transmission circuit, and communication apparatus using the same 有权
标题翻译：传输电路和使用其的通信设备
公开(公告)号：US07742541B2
公开(公告)日：2010-06-22
申请号：US11785185
申请日：2007-04-16
申请人： Toru Matsuura , Kaoru Ishida
发明人： Toru Matsuura , Kaoru Ishida
IPC分类号： H04L25/03 , H04L25/49 , H04L27/04 , H03C3/00
CPC分类号： H04B1/0483 , H03F1/0294
摘要： A compact transmission circuit for outputting a highly linear transmission signal regardless of the output power level and operating at a high efficiency is provided. A signal generation section 11 generates an amplitude signal and quadrature data based on input data. A calculation section 21 calculates using the amplitude signal and the quadrature data to output a discrete value having a level discrete at every predetermine time period, and first and second phase signals. An amplitude amplification section 17 outputs a voltage controlled in accordance with the discrete value. Angular modulation sections 13 and 14 angular-modulate the phase signals and output first and second angle-modulated signals. Amplitude modulation sections 15 and 16 amplitude-modulate the angle-modulated signals with the voltage from the amplitude amplification section 17 and output first and second modulated signals. A combining section 18 combines the first and second modulated signals and outputs a transmission signal.
摘要翻译：提供了一种用于输出高线性传输信号而不管输出功率电平并以高效率操作的紧凑型传输电路。信号生成部11基于输入数据生成振幅信号和正交数据。计算部21使用振幅信号和正交数据进行计算，以输出在每个预定时间段具有离散值的离散值，以及第一和第二相位信号。振幅放大部分17输出根据离散值控制的电压。角度调制部分13和14角度调制相位信号并输出第一和第二角度调制信号。幅度调制部分15和16利用来自幅度放大部分17的电压对角度调制信号进行幅度调制，并输出第一和第二调制信号。组合部分18组合第一和第二调制信号并输出发送信号。

32. 发明申请

US20090079507A1 System for compensation of VCO non-linearity 有权
标题翻译： VCO非线性补偿系统
公开(公告)号：US20090079507A1
公开(公告)日：2009-03-26
申请号：US11902597
申请日：2007-09-24
申请人： Akira Kato , Kaoru Ishida
发明人： Akira Kato , Kaoru Ishida
IPC分类号： G01R23/00
CPC分类号： H03L7/085 , H03C3/09
摘要： A nonlinearity-compensated section 23 has a pre-set compensation table containing a measured value of a voltage vtc, outputted from a loop filter 16, which is changed accordingly with respect to a change in a voltage vtfc outputted from a frequency controlling section 11. The nonlinearity-compensated section 23 sets, in the compensation table, the voltage vtfc of an oscillatory frequency oscillated by a VCO 21 and the voltage vtc associated therewith as reference voltages, and creates a look-up table containing voltage differences obtained by subtracting the above-described reference voltages from the voltages vtfc and vtc, respectively. Thereafter, the nonlinearity-compensated section 23 extracts a compensation value corresponding to the voltage vtc actually outputted from the loop filter 16 by means of the look-up table, and adds the compensation value to an input modulated signal adjusted by a multiplier 22 so as to be outputted.
摘要翻译：非线性补偿部分23具有包含从环路滤波器16输出的电压vtc的测量值的预设补偿表，其相对于从频率控制部分11输出的电压vtfc的变化而相应地改变。非线性补偿部分23在补偿表中设置由VCO21振荡的振荡频率的电压vtfc和与其相关联的电压vtc作为参考电压，并且创建包含通过减去上述获得的电压差的查找表描述了分别来自电压vtfc和vtc的参考电压。此后，非线性补偿部分23通过查找表提取与环路滤波器16实际输出的电压vtc对应的补偿值，并将补偿值与由乘法器22调整的输入调制信号相加，以便被输出。

33. 发明申请

US20070013567A1 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：US20070013567A1
公开(公告)日：2007-01-18
申请号：US11477855
申请日：2006-06-30
申请人： Toru Matsuura , Hisashi Adachi , Kaoru Ishida
发明人： Toru Matsuura , Hisashi Adachi , Kaoru Ishida
IPC分类号： H03M3/00
CPC分类号： H04L27/362 , H03F1/02 , H03F3/24 , H03F3/245 , H03G3/001 , H03G3/004 , H03G3/3047 , H04B2001/045 , H04L27/206 , H04W52/22 , H04W52/225 , H04W52/228 , H04W52/36
摘要： A transmission circuit operating at a high efficiency and a low distortion is provided. A signal generation section 11 generates a vector signal and an amplitude signal. A vector modulation section 13 performs vector modulation on the vector signal. An amplification section 15 amplifies the signal processed with the vector modulation. A signal processing section 12 performs predetermined signal processing on the amplitude signal and outputs the resultant signal. A regulator 14 controls a voltage to be supplied to the amplification section 15 based on the magnitude of the signal which is output from the signal processing section 12. The signal processing section 12 determines whether or not the amplitude signal exceeds a threshold value at an interval of a predetermined time period, selects a discrete value to be output based on the determination result, and outputs a signal having the selected discrete value.
摘要翻译：提供以高效率和低失真运行的传输电路。信号生成部11生成矢量信号和幅度信号。矢量调制部13对矢量信号进行矢量调制。放大部分15放大用矢量调制处理的信号。信号处理部12对振幅信号进行规定的信号处理，并输出合成信号。调节器14基于从信号处理部分12输出的信号的大小来控制要提供给放大部分15的电压。信号处理部分12确定幅度信号是否以一定间隔超过阈值根据确定结果选择要输出的离散值，并输出具有所选离散值的信号。

34. 发明申请

US20060146917A1 Multi-mode transmitter circuit for switching over between TDMA mode and CDMA mode 审中-公开
标题翻译：用于在TDMA模式和CDMA模式之间切换的多模发射机电路
公开(公告)号：US20060146917A1
公开(公告)日：2006-07-06
申请号：US11291985
申请日：2005-12-02
申请人： Kaoru Ishida
发明人： Kaoru Ishida
IPC分类号： H04B1/707
CPC分类号： H04B1/406 , H04B1/707
摘要： A multi-mode transmitter circuit is provided for selectively switching over between a TDMA mode and a CDMA mode, where a transmission frequency of the CDMA mode is substantially identical to a transmission frequency of the TDMA mode. In the TDMA and CDMA modes, a filter device attenuates frequency band components other than a transmission frequency band of a phase-modulated signal, and filters an attenuated phase-modulated signal to pass therethrough a filtered phase-modulated signal. In the TDMA mode, an amplitude modulator generates a transmitting radio signal by modulating an amplitude of the phase-modulated signal according to an amplitude component of the inputted signal to be modulated, and in the CDMA mode, the amplitude modulator outputs the phase-modulated signal as a transmitting radio signal.
摘要翻译：提供了一种多模式发射机电路，用于在TDMA模式和CDMA模式之间选择性切换，其中CDMA模式的发射频率基本上与TDMA模式的发射频率相同。在TDMA和CDMA模式中，滤波器装置衰减除相位调制信号的发送频带之外的频带分量，并且对衰减的相位调制信号进行滤波以通过滤波的相位调制信号。在TDMA模式中，幅度调制器通过根据要调制的输入信号的幅度分量调制相位调制信号的幅度来产生发送无线电信号，并且在CDMA模式中，幅度调制器输出相位调制信号信号作为发射无线电信号。

35. 发明授权

US07046972B2 Predistortion linearizer and predistortion distortion compensation method, program, and medium 失效
标题翻译：预失真线性化和预失真失真补偿方法，程序和介质
公开(公告)号：US07046972B2
公开(公告)日：2006-05-16
申请号：US10118704
申请日：2002-04-09
申请人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
发明人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
IPC分类号： H04B1/04
CPC分类号： H03F1/3247
摘要： A predistortion linearizer has signal dividing circuit dividing an input signal into two signals; signal adjusting circuit using one of the divided signals to execute predetermined adjustment and outputting a signal based on the adjustment; distortion signal generating circuit generating a distortion signal using the signal output from the signal adjusting circuit; signal synthesizing circuit synthesizing the other of the divided signals with the generated distortion signal; and signal amplifying circuit amplifying the synthesized signal and outputting an output signal, and wherein the signal adjusting circuit executes the predetermined adjustment such that there is a predetermined relationship between the level of a difference between the signal amplitudes of predetermined frequency components contained in a distortion signal and the level of a difference between the signal amplitudes of the predetermined frequency components contained in a distortion signal.
摘要翻译：预失真线性化器具有将输入信号分成两个信号的信号分频电路; 信号调整电路，使用所述分割信号中的一个来执行预定的调整并基于所述调整输出信号; 失真信号发生电路使用从信号调节电路输出的信号产生失真信号; 信号合成电路用所生成的失真信号合成另外的分频信号; 以及信号放大电路，放大合成信号并输出输出信号，并且其中信号调节电路执行预定调整，使得在包含在失真信号中的预定频率分量的信号幅度之间存在预定的关系以及包含在失真信号中的预定频率分量的信号幅度之间的差的电平。

36. 发明授权

US06977548B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
公开(公告)号：US06977548B2
公开(公告)日：2005-12-20
申请号：US10946301
申请日：2004-09-22
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 , H03F1/32
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.

37. 发明授权

US06972621B2 Power amplifier 失效
标题翻译：功率放大器
公开(公告)号：US06972621B2
公开(公告)日：2005-12-06
申请号：US10964762
申请日：2004-10-15
申请人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
发明人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
IPC分类号： H03F1/32 , H03F1/26
CPC分类号： H03F1/3247 , H03F2200/102
摘要： A power amplifier capable of compensating for distortion by pre-distortion and achieving a large distortion suppressing effect even if IM3L components and IM3U components occurring at the power amplifier have a large level difference. A power amplifying circuit 117 amplifies an original signal. An envelope detector 119 generates an envelope signal having components identical to envelope components included in the original signal. Based on the original signal a distortion signal generating circuit 112 generates a distortion signal for canceling distortion components occurring while the original signal is amplified by the power amplifying circuit 117. In a power combiner 116, the envelope signal is injected to the original signal, thereby eliminating the asymmetric characteristic of the distortion components. In the power amplifying circuit 117, the distortion signal is injected to the original signal, thereby suppressing the distortion components.
摘要翻译：功率放大器能够通过预失真来补偿失真，并且即使在功率放大器处出现的IM3L分量和IM3U分量具有较大的电平差，也能实现大的失真抑制效果。功率放大电路117放大原始信号。包络检测器119产生具有与包含在原始信号中的包络分量相同的分量的包络信号。基于原始信号，失真信号发生电路112产生用于消除由功率放大电路117放大原始信号时发生的失真分量的失真信号。在功率合成器116中，将包络信号注入原始信号，从而消除失真分量的不对称特性。在功率放大电路117中，将失真信号注入原始信号，从而抑制失真成分。

38. 发明授权

US06833758B2 Power amplifier 失效
标题翻译：功率放大器
公开(公告)号：US06833758B2
公开(公告)日：2004-12-21
申请号：US10446055
申请日：2003-05-28
申请人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
发明人： Toshimitsu Matsuyoshi , Kaoru Ishida , Seiji Fujiwara
IPC分类号： H03F126
CPC分类号： H03F1/3247 , H03F2200/102
摘要： A power amplifier capable of compensating for distortion by pre-distortion and achieving a large distortion suppressing effect even if IM3L components and IM3U components occurring at the power amplifier have a large level difference. A power amplifying circuit 117 amplifies an original signal. An envelope detector 119 generates an envelope signal having components identical to envelope components included in the original signal. Based on the original signal a distortion signal generating circuit 112 generates a distortion signal for canceling distortion components occurring while the original signal is amplified by the power amplifying circuit 117. In a power combiner 116, the envelope signal is injected to the original signal, thereby eliminating the asymmetric characteristic of the distortion components. In the power amplifying circuit 117, the distortion signal is injected to the original signal, thereby suppressing the distortion components.
摘要翻译：功率放大器能够通过预失真来补偿失真，并且即使在功率放大器处出现的IM3L分量和IM3U分量具有较大的电平差，也能实现大的失真抑制效果。功率放大电路117放大原始信号。包络检测器119产生具有与包含在原始信号中的包络分量相同的分量的包络信号。基于原始信号，失真信号发生电路112产生用于消除由功率放大电路117放大原始信号时发生的失真分量的失真信号。在功率合成器116中，将包络信号注入原始信号，从而消除了失真分量的不对称特性。在功率放大电路117中，将失真信号注入原始信号，从而抑制失真成分。

39. 发明授权

US06803837B2 Power splitter/combiner circuit, high power amplifier and balun circuit 失效
标题翻译：功率分配器/组合器电路，大功率放大器和平衡 - 不平衡转换电路
公开(公告)号：US06803837B2
公开(公告)日：2004-10-12
申请号：US10438045
申请日：2003-05-15
申请人： Kaoru Ishida , Masayuki Miyaji , Hiroaki Kosugi , Shin'ichi Kugou
发明人： Kaoru Ishida , Masayuki Miyaji , Hiroaki Kosugi , Shin'ichi Kugou
IPC分类号： H01P512
CPC分类号： H01P5/10 , H01P5/12 , H03F3/602
摘要： A balun design incorporating the functions of a splitter (combiner) which can be employed in a high power amplifier circuit configuration. The balun is formed of a dielectric multilayer board with conductor patterns on each conductor pattern layer. The balun includes the propagation of a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal. The balun provides the output signals at the first and second opposite-phase output terminals 180° out of phase employing through holes in the main line and coupling lines for promoting electromagnetic coupling therebetween.
摘要翻译：平衡 - 不平衡变压器设计结合了可用于高功率放大器电路配置的分路器（组合器）的功能。平衡 - 不平衡变换器由在每个导体图案层上具有导体图案的电介质多层板形成。平衡 - 不平衡变换器包括将输入信号的一半传播到同相输出端子，并且还将第四输入信号传播到第一和第二反相输出端子，该信号传播到第一和第二相位相位输出端子滞后于传播到同相输出端子的信号后方180度。平衡 - 不平衡变压器在第一和第二反相输出端子处提供输出信号，180°异相采用主线中的通孔和用于促进电磁耦合的连接线。

40. 发明授权

US06750706B2 Control method and circuit for feedforward distortion compensation amplifier 有权
标题翻译：前馈失真补偿放大器的控制方法和电路
公开(公告)号：US06750706B2
公开(公告)日：2004-06-15
申请号：US10167687
申请日：2002-06-11
申请人： Kaoru Ishida , Toshimitsu Matsuyoshi , Naoki Takachi , Yuji Saito
发明人： Kaoru Ishida , Toshimitsu Matsuyoshi , Naoki Takachi , Yuji Saito
IPC分类号： H03F366
CPC分类号： H03F1/3235 , H03F1/3229 , H03F2201/3212
摘要： A method of controlling a feedforward distortion compensation amplifier has steps of detecting a distortion component generated in a main amplifier by coupling a signal branched from a signal input to the main amplifier and containing a plurality of carriers of different frequencies to a signal branched from an output signal from the main amplifier so that the coupling causes the carrier components to cancel each other, recoupling the signal resulting from the coupling to the output signal from the main amplifier, and adjusting an amplitude and phase of at least one of the signals to be recoupled so that distortion components cancel each other upon recoupling, wherein a first and second pilot signals obtained from a first and second pilot signal sources are inserted into the input signal to or output signal from the main amplifier, parts of the signal resulting from the recoupling are taken out through branching, and the signals taken out through branching are mixed with the first and second pilot signals, respectively, and thus down-converted to generate down convert signals so that control signals to adjust the amplitude and phase are generated according to the down convert signals.
摘要翻译：控制前馈失真补偿放大器的方法具有通过将从输入信号分支到主放大器并将不同频率的多个载波分支的信号耦合到从输出信号分支的信号来检测在主放大器中产生的失真分量的步骤使得耦合使得载波分量彼此抵消，将耦合产生的信号重新耦合到来自主放大器的输出信号，并且调整要重新耦合的至少一个信号的振幅和相位，从而该失真分量在重新耦合时彼此抵消，其中从第一和第二导频信号源获得的第一和第二导频信号被插入到主放大器的输入信号中或从主放大器输出信号，取出由重新耦合产生的信号的部分通过分支输出，并且通过分支取出的信号与第一和第二部分混合并且因此下变频以产生下变频信号，从而根据降频转换信号产生调节幅度和相位的控制信号。

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