Patent ID: 7835714

Claim:
A radio wave reception device comprising: radio wave reception means which receives radio wave signals, and outputs the received radio wave signal converting the signal to an electric signal; oscillation means which outputs a signal of a predetermined frequency; frequency conversion means which mixes the electric signal output from said radio wave reception means with the signal output from said oscillation means, and converts the signal to an intermediate frequency signal; standard signal generating means which generates a standard signal from the intermediate frequency signal converted by said frequency conversion means; first multiplication means which multiplies said intermediate frequency signal with said standard signal; first phase control means which changes the phase of said intermediate frequency signal and outputs the signal; second multiplication means which multiplies the signal output from said first phase control means with said standard signal; second phase control means which changes the phase of the signal multiplied by said second multiplication means, and outputs the signal; and adding means which adds the signal output from said second phase control means with the signal multiplied by said first multiplication means.