| 摘要 |
<p>A digital television signal receiving tuner includes a mixer (3), to which a received digital television signal is input, for frequency-converting the received digital television signal and outputting an intermediate frequency signal, and a local oscillator (10) for inputting a local oscillation signal to the mixer (3). When the received digital television signal contains a first digital television signal whose bit rate is lower than a predetermined bit rate and a second digital television signal whose bit rate is higher than the predetermined bit rate, the levels of the first and second digital television signals input to the mixer (3) are set to be different. The level of the first digital television signal input to the mixer (3) is set to be lower than the level of the second digital television signal input to the mixer (3). <IMAGE></p> |
