Channel selector

Details Channel selector Channel selector

H - Electricity

03

J

365/6

H03J 5/00 (2006.01) H03J 5/02 (2006.01) H03J 7/28 (2006.01) H03L 7/18 (2006.01)

Patent

CA 1221779

ABSTRACT A channel selector characterized in that a plurality of receivers capable of simultaneously performing a receiving operation have a main part of a phase-locked loop frequency synthesizer connected in common thereto, the frequency synthesizer having a programmable frequency divider, a phase comparator, a reference oscillator and a reference frequency divider. The frequency synthesizer is controlled so that a local oscillation frequency corresponding to a determined frequency close to a broadcast signal of a desired receiving channel is synthesized, and one of a plurality of search tuning systems searches and tunes the broadcast signal from the local oscillation frequency.

343451

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