Atm switch and control method thereof

H - Electricity – 04 – Q

Patent

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H04Q 1/20 (2006.01) H04L 1/00 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2049366

An ATN switch including ECC encoder circuits each for generating, for an ATM cell as an information symbol, an ECC check symbol and for adding the ECC check symbol thereto, cell partitioning circuits each for subdividing an information field of an ATM cell into N partial cells, for subdividing a check symbol field into M partial cells, and for assigning an identical routing tag to the obtained partial cells (N + M) partial cell switches for respectively routing the (N + M) partial cells in an independent fashion based on the routing tag, and ECC decoder circuits for receiving the (N + M) partial cells thus routed and for achieving an error correction on the received partial cells.

L'invention est un commutateur ATN qui comprend des circuits de codage de correction d'erreurs utilisés chacun pour produire, en rapport avec une cellule MTA comme symbole d'information, un symbole de vérification de code de correction d'erreurs et pour ajouter ce symbole à cette cellule, des circuits de segmentation de cellules utilisés chacun pour subdiviser un champ d'information d'une cellule MTA en N cellules partielles, pour subdiviser un champ de symbole de vérification en M cellules partielles, et pour affecter une même étiquette d'acheminement aux (N + M) commutateurs des cellules partielles obtenues, et pour acheminer ces (N + M) cellules partielles individuellement de façon indépendante d'après l'étiquette d'acheminement, et des circuits de décodage de correction d'erreurs servant à recevoir les (N + M) cellules partielles ainsi acheminées et à effectuer une correction des erreurs dans les cellules partielles reçues.

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