Television – Receiver circuitry – Tuning
Reexamination Certificate
2007-02-20
2007-02-20
Natnael, Paulos M. (Department: 2622)
Television
Receiver circuitry
Tuning
Reexamination Certificate
active
10707520
ABSTRACT:
A television receiver includes a digital TV preamp for amplifying a received RF signal within a first frequency range, a satellite TV preamp for amplifying the received RF signal within a second frequency range, a first mixer having inputs coupled to the output of either the digital or satellite TV preamp according to a mode selection signal, a digital TV band-pass filter for filtering the output of the first mixer centered at a first center frequency being selectively coupled to the output of the first mixer according to the mode selection signal, a satellite TV band-pass filter for filtering the output of the first mixer centered at a second center frequency being selectively coupled to the output of the first mixer according to the mode selection signal, and a second mixer stage having inputs coupled to the output of the digital TV filter stage and the satellite TV filter stage.
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Hsu Winston
Natnael Paulos M.
Realtek Semiconductor Corp.
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