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1. 发明授权

US06424214B1 Strain error compensation amplifier 有权
公开(公告)号：US06424214B1
公开(公告)日：2002-07-23
申请号：US09727780
申请日：2000-12-04
申请人： Yasuo Sera , Takashi Uchida , Terufumi Nagano , Masahiro Himono
发明人： Yasuo Sera , Takashi Uchida , Terufumi Nagano , Masahiro Himono
IPC分类号： H03F100
摘要： According to the present invention, there is provided a strain (error) compensation amplifier which realizes miniaturization, loss reduction, and cost reduction. In the strain (error) compensation amplifier, by unifying at least two or more of a power distributor, a first delay unit, a first power synthesizer, a second delay unit, a second power synthesizer, a directional coupler, an isolator and a terminating resistor, the miniaturization, loss reduction, and cost reduction are realized.

2. 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。

3. 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。

4. 发明授权

US06271723B1 Distortion compensating device 失效
标题翻译：失真补偿装置
公开(公告)号：US06271723B1
公开(公告)日：2001-08-07
申请号：US09512331
申请日：2000-02-24
申请人： Terufumi Nagano , Yoichi Okubo , Yasuo Sera , Masaki Suto , Hidefumi Ito
发明人： Terufumi Nagano , Yoichi Okubo , Yasuo Sera , Masaki Suto , Hidefumi Ito
IPC分类号： H03F126
CPC分类号： H03F1/3276 , H03F2200/294 , H03F2200/372
摘要： A distortion compensating device comprises a 3 dB coupler having four terminals. The first terminal supplies an input signal to be inputted to an amplifier or is supplied with an input signal from an amplifier. The second terminal is associated with a third-order distortion generator for generating a third-order distortion having an amplitude for canceling out a third-order distortion generated by the amplifier depending on the supplied input signal. The third terminal is associated with a phase adjuster for adjusting the phase of the input signal to set the phase difference between the input signal and the third-order distortion generated by the third-order distortion generator to a phase difference for canceling out the third-order distortion generated by the amplifier. The fourth terminal combines and outputs the third-order distortion generated by the third-order distortion generator and the input signal whose phase is adjusted by the phase adjuster for compensating for the third-order distortion generated by the amplifier.
摘要翻译：失真补偿装置包括具有四个端子的3dB耦合器。第一端子提供要输入到放大器的输入信号或从放大器提供输入信号。第二终端与三阶失真发生器相关联，用于根据提供的输入信号产生具有消除由放大器产生的三阶失真的幅度的三阶失真。第三端子与用于调节输入信号的相位的相位调整器相关联，以将输入信号和由三阶失真发生器产生的三阶失真之间的相位差设置为相位差，以消除第三级失真发生器，由放大器产生的阶失真。第四端子组合并输出由三阶失真发生器产生的三阶失真和相位由相位调整器调整的输入信号，以补偿由放大器产生的三阶失真。

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