Terminal device for CATV

Details Terminal device for CATV Terminal device for CATV

1977-04-14

1978-08-22

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

325308, 358 86, H04N 144

Patent

active

041092813

ABSTRACT:
In a CATV system, a received signal band containing video channels and a data signal at a selected frequency is successively converted in frequency so as to provide a chosen video signal at the frequency of a selected channel. After the first conversion a residual fundamental of the data signal carrier is bandpass filtered, amplified and then demodulated to extract the data signal. The needed filtering and signal processing can thereby be more economically accomplished without adverse effects on adjacent video signal channels.

REFERENCES:
patent: 3777053 (1973-12-01), Wittig et al.
patent: 3826863 (1974-07-01), Johnson
patent: 3882266 (1975-05-01), Walding

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