Tuner-demodulator device

Details Tuner-demodulator device Tuner-demodulator device

H - Electricity

03

J

350/94

H03J 5/24 (2006.01) H04B 1/26 (2006.01) H04N 5/44 (2006.01)

Patent

CA 2000167

S P E C I F I C A T I O N TUNER-DEMODULATON DEVICE Abstract of the Disclosure A self-contained tuner-demodulator device for use with a ground based satellite television signal reception antenna and low noise block down converter (LNB) capable of capturing satellite signals and providing a LNB output signal to a satellite receiver unit toward the viewing of television images upon a display monitor. An input and switching stage accepts the received high frequency broad band satellite signal from the LNB which is then amplified by RF amplifier stages. An image tracking filter selects a desired channel and provides an amplified high frequency signal which is combined with a local oscillator output by a mixer stage towards providing an IF television signal. IF amplifiers and filters amplify and isolate the signal which is thereafter converted to a base band television signal by a FM demodulator.

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