Exchange system including plural terminals for voice and data tr

Details Exchange system including plural terminals for voice and data tr Exchange system including plural terminals for voice and data tr

1984-08-06

1987-01-06

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 84, H04Q 1104

Patent

active

046352538

ABSTRACT:
An exchange system includes a plurality of terminal devices, a plurality of interface devices for transmitting signal data and control data among the terminal devices and the interface devices on the basis of a two way bidirectional burst transmission system, and a control circuit which assigns a time slot to a PCM highway according to control data transmitted through a control highway from one of the interface devices, and transmits within the assigned time slot the signal data through the PCM highway to a selected one of the interface devices, through the PCM highway. Each of the terminal circuits generates 2-bit mode data representing the type of the terminal device. The control circuit assigns one or two time slots to the PCM highway according to the mode data.

REFERENCES:
patent: 3535457 (1970-10-01), Poschenrieder
patent: 3632882 (1972-01-01), Ciecierski et al.
patent: 3806654 (1974-04-01), Dooley et al.
patent: 4530093 (1985-07-01), Akram et al.

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