Method for the transmission of signals in time division multiple

Details Method for the transmission of signals in time division multiple Method for the transmission of signals in time division multiple

1997-01-22

1999-03-02

Hofsass, Jeffery A.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370465, 370466, 370442, H04J 302

Patent

active

058780424

ABSTRACT:
In a method for transmission of digital signals present in the form of time division multiplex channels via an ATM transmission device, a plurality of time division multiplex channels are cyclically combined in a call frame with cyclically transmitted frame cycles. The call frame contains at least one useful information channel and at least one control information channel. The digital signals present in the form of time division multiplex channels are converted into ATM cell useful information. These ATM cells are transmitted in virtual ATM channels and then again converted into time division multiplex channels which are combined in a call frame with frame cycles to be transmitted cyclically. If empty useful information channels are to be transmitted, an information item regarding empty useful information channels is inserted into the control information channel data and the useful information channels are not transmitted via ATM. At the receiving point, the information item regarding empty useful information channels is detected and empty useful information channels are inserted.

REFERENCES:
patent: 5280476 (1994-01-01), Kojima et al.
patent: 5343468 (1994-08-01), Rau
patent: 5455841 (1995-10-01), Hazu
patent: 5479407 (1995-12-01), Ko et al.
patent: 5581551 (1996-12-01), Fundneider et al.

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