Television – Receiver circuitry – Television receiver adapted to receive radio broadcast or in...
Reexamination Certificate
2006-04-18
2006-04-18
Yenke, Brian P. (Department: 2614)
Television
Receiver circuitry
Television receiver adapted to receive radio broadcast or in...
C348S731000, C348S736000, C455S063100, C455S311000
Reexamination Certificate
active
07030937
ABSTRACT:
Between a mixer and an intermediate frequency amplifying circuit, there are an intermediate frequency tuning circuit which, for reception of a TV signal, is tuned between a chrominance subcarrier frequency and a video intermediate frequency in an intermediate frequency band, and for reception of an FM broadcasting signal, is tuned nearly to the chrominance subcarrier frequency, and a first trap circuit which attenuates a sound intermediate frequency of an adjacent channel. Next to the intermediate frequency amplifying circuit, there is a second trap circuit which, for reception of a TV signal, brings about attenuation between the video intermediate frequency in the intermediate frequency band and the sound intermediate frequency of the adjacent channel and, for reception of an FM broadcasting signal, brings about attenuation around the video intermediate frequency.
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Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Yenke Brian P.
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