AFC circuit for television tuner

Facsimile and static presentation processing – Static presentation processing – Attribute control

Patent

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Details

H04N 9535

Patent

active

045300054

ABSTRACT:
An AFC circuit for use in a television tuner includes a mislocking prevention device for shifting the AFC voltage toward the audio carrier when the power switch is turned on or the channel is changed, so that the color carrier will not be inadvertently locked.

REFERENCES:
patent: 3020339 (1962-02-01), Richman
patent: 3678183 (1972-07-01), Montgomery

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