Generating a stop signal of an automatic search procedure for a

Details Generating a stop signal of an automatic search procedure for a Generating a stop signal of an automatic search procedure for a

1989-01-27

1990-07-10

Orsino, Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455182, 455192, H04B 126

Patent

active

049412043

ABSTRACT:
During an automatic search scan of a broacasting station of a video receiver's tuner, the AFC signal generated by an existing automatic frequency control circuit of the receiver is applied to an input of four comparators. A first, switched threshold comparator commutes when the AFC signal is greater than the two switched threshold values

REFERENCES:
patent: 3824475 (1974-07-01), Pflasterer
patent: 4123716 (1978-10-01), Borg
patent: 4263675 (1981-04-01), Hongu et al.
patent: 4302778 (1981-11-01), Tanaka
patent: 4438528 (1984-03-01), Hagaki

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