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1. 发明授权

US06933780B2 Predistortion circuit and power amplifier 有权
标题翻译：预失真电路和功率放大器
公开(公告)号：US06933780B2
公开(公告)日：2005-08-23
申请号：US09772883
申请日：2001-01-31
申请人： Seiji Fujiwara , Toru Matsuura , Kaoru Ishida , Makoto Sakakura
发明人： Seiji Fujiwara , Toru Matsuura , Kaoru Ishida , Makoto Sakakura
IPC分类号： H03F1/32 , H03F1/26
CPC分类号： H03F1/3276
摘要： A predistortion circuit has an input terminal for inputting a predetermined signal; a nonlinear device directly or indirectly connected to the input terminal; a bias supply circuit for applying a voltage to the nonlinear device; specific-frequency suppressing means connected to one side or both sides of the nonlinear device directly without another intervening device and of suppressing all or part of such frequencies that are from a frequency corresponding to DC to a frequency corresponding to an occupied band width of an input signal inputted to the input terminal and/or suppressing at least one higher harmonic frequency of a carrier wave of the input signal; and an output terminal for outputting a signal.
摘要翻译：预失真电路具有用于输入预定信号的输入端子; 直接或间接连接到输入端的非线性装置; 用于向非线性装置施加电压的偏置电源电路; 特定频率抑制装置直接连接到非线性装置的一侧或两侧，而没有另一个中间装置，并且将来自对应于DC的频率的全部或部分频率抑制到对应于输入的占用带宽的频率输入到输入端子的信号和/或抑制输入信号的载波的至少一个高次谐波频率; 以及用于输出信号的输出端子。

2. 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.

3. 发明授权

US06960957B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
公开(公告)号：US06960957B2
公开(公告)日：2005-11-01
申请号：US10395092
申请日：2003-03-25
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.

4. 发明申请

US20050237113A1 PREDISTORTION CIRCUIT, LOW-DISTORTION POWER AMPLIFIER, AND CONTROL METHODS THEREFOR 有权
标题翻译：预测电路，低失真功率放大器及其控制方法
公开(公告)号：US20050237113A1
公开(公告)日：2005-10-27
申请号：US11100507
申请日：2005-04-07
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.
摘要翻译：幅度频率特性调整电路106设置在失真产生电路105的下游并连接到失真产生电路105。通过幅度频率特性调整电路106调整低频侧和高频侧失真电压之间的幅度差，然后通过矢量调整电路107调整其幅度和相位。通过这种结构，即使幅度和相位不同，也能同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧的失真电压。

5. 发明申请

US20050035818A1 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
标题翻译：预失真电路，低失真功率放大器及其控制方法
公开(公告)号：US20050035818A1
公开(公告)日：2005-02-17
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.
摘要翻译：振幅频率特性调整电路106设置在失真发生电路105的下游并连接到失真发生电路105.通过振幅频率特性调整电路106调整低频侧和高频侧失真电压之间的振幅差，然后它们的幅度和相位由矢量调整电路107调整。这种配置使得可以同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧失真电压两者即使它们的幅度和相位不同。

6. 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.

7. 发明申请

US20060061418A1 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
公开(公告)号：US20060061418A1
公开(公告)日：2006-03-23
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.

8. 发明授权

US06989713B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
标题翻译：预失真电路，低失真功率放大器及其控制方法
公开(公告)号：US06989713B2
公开(公告)日：2006-01-24
申请号：US11100507
申请日：2005-04-07
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.
摘要翻译：幅度频率特性调整电路106设置在失真产生电路105的下游并连接到失真产生电路105。通过幅度频率特性调整电路106调整低频侧和高频侧失真电压之间的幅度差，然后通过矢量调整电路107调整其幅度和相位。通过这种结构，即使幅度和相位不同，也能同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧的失真电压。

9. 发明授权

US06960958B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
标题翻译：预失真电路，低失真功率放大器及其控制方法
公开(公告)号：US06960958B2
公开(公告)日：2005-11-01
申请号：US10750910
申请日：2004-01-05
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.
摘要翻译：幅度频率特性调整电路106设置在失真产生电路105的下游并连接到失真产生电路105。通过幅度频率特性调整电路106调整低频侧和高频侧失真电压之间的幅度差，然后通过矢量调整电路107调整其幅度和相位。通过这种结构，即使幅度和相位不同，也能同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧的失真电压。

10. 发明授权

US06590449B2 Predistortion circuit, low-distortion power amplifier, and control methods therefor 有权
标题翻译：预失真电路，低失真功率放大器及其控制方法
公开(公告)号：US06590449B2
公开(公告)日：2003-07-08
申请号：US09865692
申请日：2001-05-29
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： H03F126
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.
摘要翻译：振幅频率特性调整电路106设置在失真发生电路105的下游并连接到失真发生电路105.通过振幅频率特性调整电路106调整低频侧和高频侧失真电压之间的振幅差，然后它们的幅度和相位由矢量调整电路107调整。这种配置使得可以同时抑制由宽带AB类功率放大器产生的失真的低频侧和高频侧失真电压两者即使它们的幅度和相位不同。

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