Digital data transmission system

摘要

Digital data transmission system in which different channels are interleaved with a multiplexer to form a serial data stream. The object of making channel allocation, channel block formation, gross bit rate and channel number variable with a simultaneous maximum useful data rate in relation to the gross transmission rate is solved in that a synchronisation channel is provided which transmits useful data as well as synchronisation information, the allocation of the other useful channels and/or the number of other useful channels and/or the gross data rate and/or the channel block formation can be programmed as required. <IMAGE>