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公开(公告)号：EP1881611A4
公开(公告)日：2014-03-19
申请号：EP06767629
申请日：2006-06-29
申请人： PANASONIC CORP
发明人： MATSUURA TORU , ADACHI HISASHI , ISHIDA KAORU
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.
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2.发明公开TWO-POINT MODULATION TYPE PHASE MODULATING APPARATUS, POLAR MODULATION TRANSMITTING APPARATUS, RADIO TRANSMITTING APPARATUS, AND WIRELESS COMMUNICATION APPARATUS 审中-公开与两点调制相位调制设备，与极性调制，远程设备和无线通信设备的发送装置;
公开(公告)号：EP1816816A4
公开(公告)日：2013-05-15
申请号：EP06745574
申请日：2006-04-21
申请人： PANASONIC CORP
发明人： HIRANO SHUNSUKE , ADACHI HISASHI
CPC分类号： H04L27/20 , H03C3/0925 , H03C3/0933 , H03C3/0941 , H03C3/095 , H03C3/0966
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公开(公告)号：EP1744449A4
公开(公告)日：2009-03-18
申请号：EP05736644
申请日：2005-04-27
申请人： PANASONIC CORP
发明人： MORIMOTO SHIGERU , ADACHI HISASHI , MATSUURA TORU
CPC分类号： H04L27/361 , H03F1/02 , H03F1/32 , H03F3/24
摘要： Conventionally, the circuit scale and cost were increased so as to significantly reduce the distortion of modulated signals of amplifiers. An amplifier comprising a modulation encoder (101) that receives an original modulated signal and generates an amplitude signal and a phase signal; voltage adjusting means (110) for generating from the amplitude signal an amplitude modulated signal; a carrier generator (102) for generating from the phase signal a phase modulated signal; and an amplifying element (106) that receives the phase modulated signal, also receives, as a bias voltage, the amplitude modulated signal, and outputs a modulated signal obtained by reconstructing and amplifying the original modulated signal; wherein the voltage adjusting means (110) decides, based on a level control signal indicative of the level of the amplitude modulated signal, a DC offset voltage, and generates an amplitude modulated signal in which the DC offset voltage has been added.
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