Wired television broadcasting system

Details Wired television broadcasting system Wired television broadcasting system

1981-07-01

1983-08-09

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358114, 455 1, 455 28, H04N 716

Patent

active

043982140

ABSTRACT:
There is disclosed a wired television system comprising a source of television signals supplying signals to a transmission network, subscriber stations connected to the network, means for preventing reception of transmitted signals by at least one subscriber station, and means for overriding the preventing means to enable that subscriber to receive the transmitted signals. The television signals are heterodyned with a scrambling signal to provide the transmitted signals, and the scrambling signal is transmitted over the network. At the subscriber station, the transmitted signals and the scrambling signal are heterodyned to recover the television signal.

REFERENCES:
patent: 2709218 (1955-05-01), Gabrilovitch
patent: 3054857 (1962-09-01), Weiss
patent: 3826863 (1974-07-01), Johnson
patent: 3857997 (1974-12-01), Toonder
patent: 3914534 (1975-10-01), Forbes
patent: 4024575 (1977-05-01), Harney et al.
patent: 4222067 (1980-09-01), Stern et al.

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