Subscription television decoder apparatus

Details Subscription television decoder apparatus Subscription television decoder apparatus

1976-11-03

1979-07-31

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358116, 358120, 358121, 358122, H04N 716

Patent

active

041632524

ABSTRACT:
This disclosure is concerned with simplified decoder apparatus for use with depressed horizontal sync scrambled television transmissions, embodying intercarrier detection of picture and sound carriers and FM demodulation of audio information including a pilot tone used to restore the video sync signal by controlling an RF gating amplifier.

REFERENCES:
patent: 3184537 (1965-05-01), Court et al.
patent: 3813482 (1974-05-01), Blonder

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