Wired broadcasting system with subscriber controlled...

Details Wired broadcasting system with subscriber controlled... Wired broadcasting system with subscriber controlled...

H - Electricity

04

N

350/24, 340/81

H04N 7/16 (2006.01) H04N 7/173 (2006.01) H04H 1/04 (2006.01)

Patent

CA 1142244

ABSTRACT A wired broadcasting system comprising a central station at which a plurality of television signals are made available, a plurality of exchanges connected to the central station by a plurality of trunk cables on which the television signals are broadcast, and a plurality of subscriber units each connected to an exchange. Each subscriber unit is provided with means for controlling a respective selector at the exchange to select a desired one of the programme signals for transmission to that subscriber. Each trunk cable carries a plurality of frequency division multiplexed signals and each selector comprises a first selecting means for selecting the signals on one said trunk cable and a second selecting means for selecting one of the signals on said one trunk cable for transmission to the respective subscriber unit.

356827

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