Time division switching system for circuit mode and packet mode

Multiplex communications – Wide area network – Packet switching

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H04J 600

Patent

active

044942311

ABSTRACT:
The switching network included in the system is connected to circuit mode and/or packet mode mono- or multi-channel digital lines via connection modules. These modules enable the system connections to be standardized and accept thus any number of multiplexed channels in the lines and any transmission mode, namely duplex or half-duplex. The flag/packet transition in a packet mode channel is detected in a connection module and is transmitted as a particular word in a predetermined time interval of the outgoing multiplex of this module, at the same time as the address of the channel, thereby precluding the use of purpose-built links.

REFERENCES:
patent: 3890469 (1975-06-01), Kelly et al.
patent: 4058672 (1977-11-01), Crager et al.
J. deSmet et al., "Pacuit Switching Combines Two Techniques in One Network", Computer Design, vol. 15, No. 6, Jun. 1976, pp. 83-88.
Y. Ikeda et al., "Virtual Circuit Switching System: A New System Concept for Telephony and Data Integration", ISS, May 1976, pp. 757-764.
M. Ross et al., "An Architecture for a Flexible Voice/Data Switch", ICC, Jun. 1980, pp. 21.6.1-21.6.5.

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