Method and means for transmission of multimedia services on a broadband private network

摘要

The method involves multiplexing digital and analogue signals for transmission over a common network. Incoming digital transmissions are digitally modulated (5.i) and offset in frequency (6.i) before multiplexing (8). Preferably QPSK or QAM is used and multiplexing is performed according to the MPEG standard. Input analogue signals are frequency offset (6j) before multiplexing is performed. Part of the frequency range is used for interactive communication. The network is preferably of bus, active star or bus-star type.