Patent ID: 7782153

Claim:
A timing adjusting apparatus comprising: a timing error detecting part configured to detect a phase error indicative of a timing error between a timing at which an input transmitting signal is received from a main signal path and a timing at which a voltage control signal is received from a control signal path, based on the input transmitting signal that represents an amplitude or a power of a transmitting signal prior to an amplification and a feedback signal that represents an amplitude or a power of the transmitting signal after the amplification, and to generate an instruction signal indicative of the phase error; an adjusting part, responsive to the instruction signal, configured to adjust an amount of delay of the main signal path and the control signal path so as to mutually cancel the phase error; and a power amplifying part configured to amplify the transmitting signal from the main signal path received via the adjusting part depending on the voltage control signal from the control signal path, wherein the timing error detecting part comprises: a detector part configured to detect polarity transition points of a slope of a waveform of an envelope component of the input transmitting signal prior to adjustment in the adjusting part and the feedback signal; and a phase error measuring part configured to measure the phase error according to values that are acquired from the detected polarity transition points and indicate characteristics of the detected polarity transition points.