Patent ID: 8594159

Claim:
A transceiver amplifier for converting an input digital signal to an analog signal, amplifying the analog signal, and outputting the amplified analog signal to a band-pass filter, the transceiver amplifier comprising: a feedback section configured to acquire an analog signal that has passed through the band-pass filter, and convert the acquired analog signal to a digital signal, the analog signal including a frequency component of a first frequency and a frequency component of a second frequency, the band-pass filter having different delay time for processing between the first frequency and the second frequency; and a digital signal processing section configured to compare the digital signal obtained from the feedback section and the input digital signal with each other to measure modulation accuracy, and perform delay correction on a subsequently input digital signal to compensate a difference of delay time of the band-pass filter between a frequency component of the first frequency and a frequency component of the second frequency in accordance with the measured modulation accuracy.