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1. 发明授权

US08035444B2 Amplifier apparatus 有权
标题翻译：放大器装置
公开(公告)号：US08035444B2
公开(公告)日：2011-10-11
申请号：US12615687
申请日：2009-11-10
申请人： Yoichi Okubo , Manabu Nakamura , Yasuhiro Takeda , Taizo Ito , Junya Dosaka , Terufumi Nagano , Hidekatsu Ueno , Toshio Nojima
发明人： Yoichi Okubo , Manabu Nakamura , Yasuhiro Takeda , Taizo Ito , Junya Dosaka , Terufumi Nagano , Hidekatsu Ueno , Toshio Nojima
IPC分类号： H03F3/68
CPC分类号： H03F1/0288
摘要： An amplifier capable of lowering an electrical current flowing in a peak amplifier before a carrier amplifier becomes saturated to thereby improve the efficiency of an entirety of the amplifier is provided. The amplifier includes a carrier amplifier circuit having an amplifying element operable in class-AB or class-B, and a plurality of peak amplifier circuits which have amplifying elements operating in class-B or class-C and which are arranged to start an operation in stages in response to an input level. An output of the carrier amplifier circuit and outputs of the peak amplifier circuits are combined together for signal output. One of the peak amplifier circuits which is rendered operative at the lowest input level is smaller in saturation output than the carrier amplifier circuit.
摘要翻译：提供一种放大器，其能够在载波放大器饱和之前降低在峰值放大器中流动的电流，从而提高整个放大器的效率。放大器包括具有可在AB类或B类中工作的放大元件的载波放大器电路和具有在B类或C类中工作的放大元件的多个峰值放大器电路，响应输入级别的阶段。载波放大器电路的输出和峰值放大器电路的输出被组合在一起用于信号输出。在最低输入电平下工作的峰值放大器电路中的一个在饱和输出中比载波放大器电路小。

2. 发明申请

US20050225387A1 Amplifier 有权
标题翻译：放大器
公开(公告)号：US20050225387A1
公开(公告)日：2005-10-13
申请号：US11089135
申请日：2005-03-24
申请人： Hidekatsu Ueno , Yoshihiro Narita
发明人： Hidekatsu Ueno , Yoshihiro Narita
IPC分类号： H03F1/32 , H03F1/26
CPC分类号： H03F1/3223
摘要： There is provided an amplifier that achieves stable distortion compensation without using a pilot signal even when there is a difference in level in the base signal of a multicarrier signal. The amplifier is a feedforward amplifier for amplifying a multifrequency wideband signal without using a pilot signal, and includes an input monitoring section in a signal input stage and an output monitoring section in a signal output stage, whereby for fluctuations in level of the signal from the monitoring sections, when the signal level is decreased to cause a significant decrease in the level of adjacent channel leakage power (ACP) and when the signal level does not decrease to cause a slight increase in ACP level, the controller shifts a set ACP reception frequency to an opposite frequency of the multicarrier signal, thereby achieving stable distortion compensation even when there is a difference in level in the base signal of a multicarrier signal.
摘要翻译：提供了即使在多载波信号的基本信号中存在差异的情况下，也可以不使用导频信号而实现稳定的失真补偿的放大器。放大器是用于在不使用导频信号的情况下放大多频宽带信号的前馈放大器，并且包括信号输入级中的输入监视部分和信号输出级中的输出监视部分，由此来自信号输入级的信号的电平波动监视部分，当信号电平降低以导致相邻信道泄漏功率（ACP）的电平显着降低时，并且当信号电平不降低以导致ACP电平轻微增加时，控制器将设置的ACP接收频率到多载波信号的相反频率，从而即使在多载波信号的基本信号中存在电平差时也实现稳定的失真补偿。

3. 发明授权

US07190223B2 Amplifier 有权
标题翻译：放大器
公开(公告)号：US07190223B2
公开(公告)日：2007-03-13
申请号：US11089135
申请日：2005-03-24
申请人： Hidekatsu Ueno , Yoshihiro Narita
发明人： Hidekatsu Ueno , Yoshihiro Narita
IPC分类号： H03F1/00
CPC分类号： H03F1/3223
摘要： There is provided an amplifier that achieves stable distortion compensation without using a pilot signal even when there is a difference in level in the base signal of a multicarrier signal. The amplifier is a feedforward amplifier for amplifying a multifrequency wideband signal without using a pilot signal, and includes an input monitoring section in a signal input stage and an output monitoring section in a signal output stage, whereby for fluctuations in level of the signal from the monitoring sections, when the signal level is decreased to cause a significant decrease in the level of adjacent channel leakage power (ACP) and when the signal level does not decrease to cause a slight increase in ACP level, the controller shifts a set ACP reception frequency to an opposite frequency of the multicarrier signal, thereby achieving stable distortion compensation even when there is a difference in level in the base signal of a multicarrier signal.
摘要翻译：提供了即使在多载波信号的基本信号中存在差异的情况下，也可以不使用导频信号而实现稳定的失真补偿的放大器。放大器是用于在不使用导频信号的情况下放大多频宽带信号的前馈放大器，并且包括信号输入级中的输入监视部分和信号输出级中的输出监视部分，由此来自信号输入级的信号的电平波动监视部分，当信号电平降低以导致相邻信道泄漏功率（ACP）的电平显着降低时，并且当信号电平不降低以导致ACP电平轻微增加时，控制器将设置的ACP接收频率到多载波信号的相反频率，从而即使在多载波信号的基本信号中存在电平差时也实现稳定的失真补偿。

4. 发明申请

US20100117726A1 AMPLIFIER APPARATUS 有权
标题翻译：放大器装置
公开(公告)号：US20100117726A1
公开(公告)日：2010-05-13
申请号：US12615687
申请日：2009-11-10
申请人： Yoichi OKUBO , Manabu NAKAMURA , Yasuhiro TAKEDA , Taizo ITO , Junya DOSAKA , Terufumi NAGANO , Hidekatsu UENO , Toshio NOJIMA
发明人： Yoichi OKUBO , Manabu NAKAMURA , Yasuhiro TAKEDA , Taizo ITO , Junya DOSAKA , Terufumi NAGANO , Hidekatsu UENO , Toshio NOJIMA
IPC分类号： H03F3/68
CPC分类号： H03F1/0288
摘要： An amplifier capable of lowering an electrical current flowing in a peak amplifier before a carrier amplifier becomes saturated to thereby improve the efficiency of an entirety of the amplifier is provided. The amplifier includes a carrier amplifier circuit having an amplifying element operable in class-AB or class-B, and a plurality of peak amplifier circuits which have amplifying elements operating in class-B or class-C and which are arranged to start an operation in stages in response to an input level. An output of the carrier amplifier circuit and outputs of the peak amplifier circuits are combined together for signal output. One of the peak amplifier circuits which is rendered operative at the lowest input level is smaller in saturation output than the carrier amplifier circuit.
摘要翻译：提供一种放大器，其能够在载波放大器饱和之前降低在峰值放大器中流动的电流，从而提高整个放大器的效率。放大器包括具有可在AB类或B类中工作的放大元件的载波放大器电路和具有在B类或C类中工作的放大元件的多个峰值放大器电路，响应输入级别的阶段。载波放大器电路的输出和峰值放大器电路的输出被组合在一起用于信号输出。在最低输入电平下工作的峰值放大器电路中的一个在饱和输出中比载波放大器电路小。

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