Non-coded information and companion data switching mechanism

Details Non-coded information and companion data switching mechanism Non-coded information and companion data switching mechanism

1987-04-02

1989-03-07

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 79, H04J 326

Patent

active

048113395

ABSTRACT:
Mechanism for allowing data and packetized non coded information NCI such as packetized voice or images, to be exchanged between workstations connected to nodes of a communication network. The workstations arrange the bit stream to be sent into a format of regularly occurring time slots separated by flags. The data only containing time slots begin with a first flag (F2), the NCI only containing and NCI and data containing time slots begin with a second flag (F1) and inside these slots, flag F2 separates the NCI and data portions.
The route between two workstations is established by a data session using the node resources. Once a route is established, the NCI portions of the bit stream are switched using high speed bus 26 and the data portions are routed using the normal data paths.

REFERENCES:
patent: 4542498 (1985-09-01), Bodros et al.
patent: 4621359 (1986-11-01), McMillen
patent: 4707826 (1987-11-01), Froggatt
"Design Approaches and Performance Criteria for Integrated Voice/Data Switching".
"Integration of Circuit/Packet Switching by a Senet".

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