Television receiver having a controllable sound suppression filt

Details Television receiver having a controllable sound suppression filt Television receiver having a controllable sound suppression filt

1978-11-21

1980-08-26

Moffitt, James W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 21R, H04N 562

Patent

active

042198496

ABSTRACT:
An effective control of the degree of suppression in a sound suppression filter in a television receiver is obtained when the required control signal is derived from the product of the amplitudes of the sound intercarrier signal and the chrominance sub-carrier signal, this product being in practice a measure of the disturbing difference frequency component between the chrominance sub-carrier signal and the sound intercarrier signal.

REFERENCES:
patent: 2810014 (1957-10-01), Squires
patent: 2896015 (1959-07-01), Smith
patent: 3740460 (1973-06-01), Ong

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