Remote channel switching for video on demand service

Details Remote channel switching for video on demand service Remote channel switching for video on demand service

1990-12-28

1993-04-27

Eisenzopf, Reinhard J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 42, 455 62, H04H 102

Patent

active

052067220

ABSTRACT:
VOD services are provided by providing at each subscriber location a switching apparatus (e.g., 23 of FIG. 2) which is remotely controlled from the head end (12) of the system. A set top box of each subscriber is provided with a single channel designation (X) for VOD reception. In response to a request from a subscriber for a particular TV program at a specified time, the provider at the head end actuates the switching apparatus (23) to permit the set top box to be tuned to a specified channel that corresponds to a channel upon which the requested VOD program will be transmitted. Then, when the subscriber selects on his set top box the single VOD channel designation (X), the set top box is capable of receiving the requested TV program on the specific TV channel of the transmission line (11) that has been designated for it by the provider at the head end.

REFERENCES:
patent: 4446458 (1984-05-01), Cook
patent: 4554584 (1985-11-01), Elam et al.
patent: 4823386 (1989-04-01), Dumbauld et al.
patent: 4947244 (1990-08-01), Fenwick et al.
patent: 4995075 (1991-02-01), Monslow et al.

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