公开(公告)号：US08860524B2

公开(公告)日：2014-10-14

申请号：US13382029

申请日：2010-06-17

申请人： Shigeru Morimoto ,  Kaoru Ishida ,  Maki Nakamura

发明人： Shigeru Morimoto ,  Kaoru Ishida ,  Maki Nakamura

IPC分类号： H03C1/00 ,  H03F3/24 ,  H03F3/189 ,  H03C5/00 ,  H03F1/02 ,  H04B1/04

CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0266 ,  H03F3/189 ,  H04B1/04

摘要： A polar modulator of the present invention includes: a first function block which generates an amplitude signal and a phase signal; a second function block which adjusts the signal delay between the amplitude signal and the phase signal; a third function block which allows the low frequency component of the amplitude signal to pass therethrough; a fourth function block which modulates the phase of the phase signal; a fifth function block which outputs a modulation voltage, based on the amplitude signal; a sixth function block which modulates the amplitude of the phase signal, based on the modulation voltage; a seventh function block which measures the temperature of at least one function block; and an eighth function block which calculates a compensation amount for the signal delay, based on the measured temperature. The second function block adjusts the signal delay, based on the compensation amount.

摘要翻译： 本发明的极性调制器包括：产生振幅信号和相位信号的第一功能块; 第二功能块，调整幅度信号和相位信号之间的信号延迟; 允许振幅信号的低频分量通过的第三功能块; 第四功能块，其对相位信号的相位进行调制; 第五功能块，其基于所述振幅信号输出调制电压; 第六功能块，其基于所述调制电压来调制所述相位信号的幅度; 测量至少一个功能块的温度的第七功能块; 以及基于测量的温度计算信号延迟的补偿量的第八功能块。 第二功能块根据补偿量调整信号延迟。

公开(公告)号：US08223886B2

公开(公告)日：2012-07-17

申请号：US12472674

申请日：2009-05-27

申请人： Ryo Kitamura ,  Kaoru Ishida

发明人： Ryo Kitamura ,  Kaoru Ishida

IPC分类号： H03C3/00 ,  H03K7/06 ,  H04L27/12

CPC分类号： H04L27/20 ,  H03F1/0261 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/105 ,  H03F2200/222 ,  H03F2200/27 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/78 ,  H03G3/3042

摘要： A transmission circuit switches a bias circuit without allowing a power amplifier to enter a non-bias state. A first bias circuit supplies a first bias signal to a power amplifier, and a second bias circuit supplies a second bias signal to the power amplifier. A first delay circuit delays the switching of an operation of the first bias circuit using a first delay time, and a second delay circuit delays the switching of an operation of the second bias circuit using a second delay time. The first bias circuit and the second bias circuit are both simultaneously operated for a predefined time period, in order to prevent a transistor for amplification from entering a non-bias state when switching an operation mode of the power amplifier.

摘要翻译： 传输电路在不允许功率放大器进入非偏置状态的情况下切换偏置电路。 第一偏置电路将第一偏置信号提供给功率放大器，并且第二偏置电路将第二偏置信号提供给功率放大器。 第一延迟电路使用第一延迟时间延迟第一偏置电路的操作的切换，并且第二延迟电路使用第二延迟时间来延迟第二偏置电路的操作的切换。 第一偏置电路和第二偏置电路都同时操作预定义的时间段，以便在切换功率放大器的操作模式时防止用于放大的晶体管进入非偏置状态。

公开(公告)号：US20120106402A1

公开(公告)日：2012-05-03

申请号：US13382029

申请日：2010-06-17

申请人： Shigeru Morimoto ,  Kaoru Ishida ,  Maki Nakamura

发明人： Shigeru Morimoto ,  Kaoru Ishida ,  Maki Nakamura

IPC分类号： H04L27/04 ,  H04L27/34 ,  H04B7/005

CPC分类号： H03F3/24 ,  H03C5/00 ,  H03F1/0266 ,  H03F3/189 ,  H04B1/04

摘要： A polar modulator of the present invention includes: a first function block which generates an amplitude signal and a phase signal; a second function block which adjusts the signal delay between the amplitude signal and the phase signal; a third function block which allows the low frequency component of the amplitude signal to pass therethrough; a fourth function block which modulates the phase of the phase signal; a fifth function block which outputs a modulation voltage, based on the amplitude signal; a sixth function block which modulates the amplitude of the phase signal, based on the modulation voltage; a seventh function block which measures the temperature of at least one function block; and an eighth function block which calculates a compensation amount for the signal delay, based on the measured temperature. The second function block adjusts the signal delay, based on the compensation amount.

摘要翻译： 本发明的极性调制器包括：产生振幅信号和相位信号的第一功能块; 第二功能块，调整幅度信号和相位信号之间的信号延迟; 允许振幅信号的低频分量通过的第三功能块; 第四功能块，其对相位信号的相位进行调制; 第五功能块，其基于所述振幅信号输出调制电压; 第六功能块，其基于所述调制电压来调制所述相位信号的幅度; 测量至少一个功能块的温度的第七功能块; 以及基于测量的温度计算信号延迟的补偿量的第八功能块。 第二功能块根据补偿量调整信号延迟。

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。

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。

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。

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。

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。

公开(公告)号：US20060040635A1

公开(公告)日：2006-02-23

申请号：US11078394

申请日：2005-03-14

申请人： Kaoru Ishida ,  Hiroshi Komori

发明人： Kaoru Ishida ,  Hiroshi Komori

IPC分类号： H04B1/18 ,  H04B1/26

CPC分类号： H04B1/1607 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0025 ,  H03D2200/0033 ,  H03D2200/0043

摘要： An average level detection circuit 10 outputs a level of an input signal of a baseband output signal or a mixer circuit. A smoothing circuit 11 removes an AC component from an output signal of the average level detection circuit 10. A reference comparison circuit 12 outputs a level suppression signal when an output signal of the smoothing circuit 11 exceeds a predetermined reference voltage. When the reference comparison circuit 12 outputs the level suppression signal, the limiter circuit 13 controls the bias circuit 14 to suppress a bias current of the mixer circuit. As a result, it is possible to obtain a low-current-consumption signal reception front-end circuit in which an IF output level is not significantly lowered under an unexpectedly strong input condition, and a signal reception circuit in which an error does not occur in signal reception level detection.

摘要翻译： 平均电平检测电路10输出基带输出信号或混频电路的输入信号的电平。 平滑电路11从平均电平检测电路10的输出信号中去除AC分量。 当平滑电路11的输出信号超过预定参考电压时，参考比较电路12输出电平抑制信号。 当参考比较电路12输出电平抑制信号时，限幅电路13控制偏置电路14以抑制混频器电路的偏置电流。 结果，可以获得在意外强的输入条件下IF输出电平没有显着降低的低电流消耗信号接收前端电路和其中不发生错误的信号接收电路 在信号接收电平检测。

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.