Patent ID: 8145148

Claim:
A transmitter for generating and outputting a transmitted signal based on inputted data, the transmitter comprising: a signal generation section operable to generate an amplitude signal and an angle-modulated signal based on an amplitude component and a phase component that are obtained by performing signal processing on the data; an adaptive compensation filter operable to select filter values corresponding to a magnitude of the amplitude signal and operable to perform waveform shaping on the amplitude signal in accordance with characteristics obtained from the selected filter values; an amplitude amplification section operable to output a signal corresponding to a magnitude of the amplitude signal subjected to the waveform shaping in the adaptive compensation filter; and an amplitude modulation section operable to amplitude-modulate the angle-modulated signal by the signal outputted from the amplitude amplification section and operable to output a resulting signal as a modulated signal, wherein the characteristics, obtained from the selected filter values in the adaptive compensation filter, are inverse characteristics of transfer characteristics from an input of the amplitude amplification section to an output of the amplitude modulation section, with respect to the magnitude of the amplitude signal generated by the signal generation section.