Receiver having a tuning circuit with a selectable input

Details Receiver having a tuning circuit with a selectable input Receiver having a tuning circuit with a selectable input

H - Electricity

04

B

H04B 1/18 (2006.01) H03J 5/24 (2006.01) H04N 5/44 (2006.01)

Patent

CA 2279566

A receiver includes two input terminals. A VHF broadcast signal over a 6-MHz band channel is inputted through one input terminal, while an FM broadcast signal over an approximate 100-kHz band channel is inputted through the other input terminal. The other input terminal is connected'with a trap circuit for band width reduction. This trap circuit causes attenuation in signal components over channels close to a desired channel except that over the desired channel with a band of approximately 100 kHz. An analog switch inputs selectively the VHF broadcast signal and the FM broadcast signal attenuated in the signal components to a tuning circuit having a tuning band width of approximately 6 MHz. When an FM broadcast signal is selected, an FM broadcast signal only over a desired channel is outputted from the tuning circuit.

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