Subscription television interface

Details Subscription television interface Subscription television interface

1983-01-11

1985-01-29

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358118, H04N 716

Patent

active

044969864

ABSTRACT:
An interface for subscription television reception which restores the program selection function to the tuner of the television receiver. This is of particular importance to subscribers using remote control receivers. Subscription television signals are split into two substantially identical components, one of which is fed to the tuner of the television receiver and the other of which is passed through a band reject filter to an adder. The intermediate frequency output of the tuner is converted to a predetermined carrier frequency in the television broadcast band and, as so converted, fed to the other input of the adder. The output of the adder is, in turn, fed to a conventional subscription television converter/decoder, which is set to select the program on the predetermined carrier frequency and decode the same. The converter/decoder output is converted to the intermediate frequency carrier for amplification and further processing in the intermediate frequency circuitry of the television receiver.

REFERENCES:
patent: 4398214 (1983-08-01), Gargini

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