Patent ID: 6927805

Claim:
A television receiver comprising: a mixer for converting one of a frequency of a television broadcast signal and a frequency-modulation (FM) broadcast signal into an intermediate frequency band in the television broadcast; a surface acoustic wave (SAW) filter for passing a signal on the intermediate frequency band or attenuating a signal component of a sound intermediate frequency on the intermediate frequency band; and a trap circuit responding at two trap frequencies that can be switched, wherein: during reception of the television signal, one of the trap frequencies is set to a video intermediate frequency on a television channel adjoining above the intermediate frequency band or a nearby frequency, and the other trap frequency is set to a sound intermediate frequency on the adjoining channel or a nearby frequency; during reception of the FM broadcast signal, the frequency of the FM broadcast signal is converted into a color subcarrier frequency on the intermediate frequency band or a nearby frequency, one of the trap frequencies is set to a substantially middle frequency between the video intermediate frequency and the color subcarrier frequency on the intermediate frequency band, and the other trap frequency is set to the video intermediate frequency on the intermediate frequency band or a nearby frequency; and a frequency-converted television signal or FM broadcast signal is outputted from said SAW filter.