Television – Receiver circuitry – Tuning
Reexamination Certificate
2006-10-17
2006-10-17
Natnael, Paulos M. (Department: 2622)
Television
Receiver circuitry
Tuning
Reexamination Certificate
active
07123309
ABSTRACT:
There are provided a mixer for subjecting entered digital television signals or analog television signals to frequency conversion into an intermediate frequency band and an intermediate frequency tuning circuit so configured as to enable tuning frequency to be switched in the intermediate frequency band and provided at a stage immediately following the mixer, and the intermediate frequency tuning circuit is tuned to a first frequency substantially at a center of the intermediate frequency band when digital television signals are entered into the mixer or to a second frequency, which is higher than the first frequency when analog television signals are entered.
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Alps Electric Co. ,Ltd.
Natnael Paulos M.
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