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1. 发明公开

EP0689323A3 Phase modulator with gain control 失效
标题翻译：与增益控制相位调制器
公开(公告)号：EP0689323A3
公开(公告)日：1997-06-04
申请号：EP95109446.5
申请日：1995-06-19
申请人： NEC CORPORATION
发明人： Kowaguchi, Satoshi, c/o NEC Corporation
IPC分类号： H04L27/20
CPC分类号： H04L27/2071 , H03C3/06 , H03C3/08 , H03F1/34 , H03G3/007
摘要： In a method for generating a transmitting wave, a power supply voltage (Vcc) to be supplied to a transmission power amplifier (3) is detected by a voltage detector (11), and a modulating signal (Sm) is controlled so that a peak value of a modulated wave (St) is lowered in accordance with a reduction amount of the power supply voltage (Vcc). Since the peak value of the modulated wave input to the power amplifier (3) is lowered, it is possible to obtain a transmitting wave without a distortion of the wave form or an increased bandwidth even when the reduction in the power supply voltage involves the lowering of the driving capability of the power amplifier.

2. 发明公开

EP0689323A2 Phase modulator with gain control 失效
标题翻译： Phasenmodulator mitVerstärkungsregelung
公开(公告)号：EP0689323A2
公开(公告)日：1995-12-27
申请号：EP95109446.5
申请日：1995-06-19
申请人： NEC CORPORATION
发明人： Kowaguchi, Satoshi, c/o NEC Corporation
IPC分类号： H04L27/20
CPC分类号： H04L27/2071 , H03C3/06 , H03C3/08 , H03F1/34 , H03G3/007
摘要： In a method for generating a transmitting wave, a power supply voltage (Vcc) to be supplied to a transmission power amplifier (3) is detected by a voltage detector (11), and a modulating signal (Sm) is controlled so that a peak value of a modulated wave (St) is lowered in accordance with a reduction amount of the power supply voltage (Vcc). Since the peak value of the modulated wave input to the power amplifier (3) is lowered, it is possible to obtain a transmitting wave without a distortion of the wave form or an increased bandwidth even when the reduction in the power supply voltage involves the lowering of the driving capability of the power amplifier.
摘要翻译：在产生发送波的方法中，通过电压检测器（11）检测要提供给发送功率放大器（3）的电源电压（Vcc），并且控制调制信号（Sm），使得峰值调制波（St）的值根据电源电压（Vcc）的减少量而降低。由于输入到功率放大器（3）的调制波的峰值降低，即使当电源电压的降低涉及降低时，也可以获得没有波形失真或带宽增加的发送波的功率放大器的驱动能力。

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