H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/27
H04N 7/16 (2006.01) H04H 1/04 (2006.01) H04N 7/173 (2006.01)
Patent
CA 1187977
Abstract. A switching system comprising an exchange(1) with n signal inputs(5) and m subscriber outputs(14) and switching means(6, 7) in the exchange for each subscriber for supplying a signal from one of the signal inputs through a signal separating circuit to the related subscriber output. Between each subscriber output and each subscriber terminal(11) there is a cable connection(2). Each subscriber has signal selecting means(13), which as the subscriber signal receiver(12) are connected to said subscriber terminal and by means of which selecting signals can be transmitted through the cable connection and through said signal separating circuit to a control unit in the exchange for controlling the switching means assigned to the related subscriber. For each subscriber terminal a frequency converter (9) is installed in the exchange between said switching means and said signal separating circuit, which frequency converter converts the signals received through said switching means to a frequency band or channel which can be received by the subscriber signal receiver.
392760
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Deltavisie B.v.
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