Multiple protocol personal communications network system

Details Multiple protocol personal communications network system Multiple protocol personal communications network system

1997-04-24

1999-07-20

Nguyen, Chau

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370465, 370252, H04L 1256

Patent

active

059264799

ABSTRACT:
A bi-directional communications system for bypassing a local exchange carrier telephone system for conveying data between at least one terminal unit and a switching unit that has the functionality of a Class 5 central telephone office switch that is connected to a public switched telephone network. The system includes a relay transceiver where the signals from the terminal units are converted bi-directionally between the signal format of the terminal units and fixed length compliant ATM cells when the signal format of the terminal units is other than a fixed length compliant ATM cell format. In a transmission interface unit there is a bi-directional conversion of the fixed length compliant ATM cells to time division multiplexed signals in the upstream direction and from time division multiplexed signals to fixed length compliant ATM cells in the downstream direction, wherein the upstream signal direction is toward the transmission interface unit and the downstream signal direction is toward the terminal units. Further, the system includes the transfer of the time division multiplexed signals to the switching unit. In another embodiment of the present invention there can be at least two terminal units each designed to transmit and receive in different signal formats from each other and a programmable relay transceiver unit.

REFERENCES:
patent: 5359603 (1994-10-01), McTiffin
patent: 5363408 (1994-11-01), Paik et al.
patent: 5487065 (1996-01-01), Acampora et al.
patent: 5553069 (1996-09-01), Ueno et al.

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