Patent ID: 9432177
Filing Date: 2016-08-30
CPC Classification: H03J,H04L

Claim Text:
1. A communication apparatus for receiving signals of a plurality of frequency channels, comprising: an oscillator to output a reference signal having a frequency corresponding to each of the frequency channels; a demodulator to demodulate a signal received in each of the frequency channels and to generate a demodulated signal; a deviation calculator to calculate a frequency deviation that is a difference in frequency between the demodulated signal and the reference signal in each of the frequency channels; a quality calculator to calculate transmission quality of each of the frequency channels; and a correction value calculator to calculate, based on the frequency deviation in a frequency channel determined according to the transmission quality calculated by the quality calculator, a correction value for the frequency of the reference signal in each of the frequency channels, wherein the oscillator corrects, based on the correction value, the frequency of the reference signal, and outputs the reference signal having the corrected frequency.