Multiplexed digital data transmission

Multiplex communications – Wide area network – Packet switching

Patent

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Details

370100, 358144, H04J 326

Patent

active

045891095

ABSTRACT:
A digital transmission system for transmitting, e.g., television sound has two packet type indicators indicating, e.g., mono/stereo transmission. Normally the same packet type indicator is transmitted for a long sequence of packets. To provide synchronizing information to enable, e.g., appropriate timing of a sound signal to the associated video signal, the packet type indicator for a single packet is changed to an indicator which is inappropriate to the packet concerned but is appropriate to another type of packet.

REFERENCES:
patent: 4218756 (1980-08-01), Fraser
patent: 4366479 (1982-12-01), Mori et al.
patent: 4398290 (1983-08-01), Mathieu et al.
patent: 4410889 (1983-10-01), Bryant
patent: 4414662 (1983-11-01), Bousquet

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