STM/ATM converter

Details STM/ATM converter STM/ATM converter

1996-05-09

1998-06-09

Nguyen, Chau

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370412, 370474, 370466, H04L 1256

Patent

active

057646376

ABSTRACT:
An STM/ATM converter for converting time-slot data in STM frames to ATM cells, which allows channel assignment on the STM transmission line to be flexible. In a writing operation for assembling the ATM cell, each byte data of STM frame arriving is written into a selected idle cell block which is the same size of memory capacity as an ATM cell. In a reading operation for cell output, a virtual path identifier VPI number in the FIFO 104 is read out, and in turn, the address of a cell block stored in a read address FIFO 205 corresponding to the VPI number is read out. Contends of the cell block are read out and added with overhead information for outputting as the ATM cell.

REFERENCES:
patent: 5274635 (1993-12-01), Rahman et al.
patent: 5287348 (1994-02-01), Schmidt et al.
patent: 5428609 (1995-06-01), Eng et al.
patent: 5483527 (1996-01-01), Doshi et al.
patent: 5577037 (1996-11-01), Takatori et al.
patent: 5619500 (1997-04-01), Hiekali
patent: 5623491 (1997-04-01), Skoog

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