H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/19
H04J 3/08 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 1199432
Abstract: The invention relates to a digital multiplex device for the branching of a digital information stream. In rather little telephone networks, in particular in individual networks which comprise a few intermediate stations and terminal stations, in the digital transmission technique a need has arisen to branch groups comprising less than 30 channels. In order that this could be accomplished completely digitally, i.e. without first decoding the signals to voice-frequency signals, a device has been developed which comprises four controllable connectors, four time multiplexers and two frame phasers and two control units for controlling the controllable connectors and the time multiplexers. Structurally, the device comprises two identical units, and it is also suitable for the branching of other digital information, besides data signals that have a frame structure as per standard. Moreover, the transmission rate of the branched line may be different from that of the main line when a rate modifier is used.
427228
Kirby Eades Gale Baker
Oy Nokia Ab
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