Communication system and equipment

Details Communication system and equipment Communication system and equipment

1991-11-29

1993-11-16

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370 951, H04J 322, H04J 316

Patent

active

052630250

ABSTRACT:
A communication system having an exchange network which can execute a communication procedure necessary for setting of a communication bandwidth with a party variable bandwidth terminal to make the most of characteristic of a terminal which can change its communication bandwidth during communication and to obtain as many call interconnections as possible. The exchange network includes a variable terminal attribute memory device for storing therein the types and ranges of variable bandwidths of the terminals, a bandwidth decision device for determining bandwidths allocated to the respective terminals, and a control data communication device for transmitting at least an allocated bandwidth data to the associated terminal. The variable bandwidth terminal at least includes a control data communication device for receiving the allocated bandwidth data from the exchange network, a line management device for performing access management of lines, and a terminal control device for determining a communication band-width based on the allocated bandwidth data received from the exchange network and the then terminal state to execute a communication procedure with the party terminal and to operate the line management device to increase or decrease the communication bandwidth.

REFERENCES:
patent: 4870641 (1989-09-01), Pattavina
patent: 5164938 (1992-11-01), Jurkevich et al.

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