Errorless switching techniques in ring network

Details Errorless switching techniques in ring network Errorless switching techniques in ring network

H - Electricity

04

L

H04L 12/437 (2006.01) H04B 10/20 (2006.01) H04J 3/06 (2006.01) H04J 3/08 (2006.01) H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2210065

A method of performing errorless switching in a ring network having one or more rings and a plurality of transmitting routes. The transmission delays or lengths of at least predetermined sections of the routes are compared, and the comparison is used todetermine the value of a first delay added to one of the routes. Another delay is added to enable phase alignment of signals so that errorless switching can be achieved. The delays are then adjusted to reduce cumulative delays which could degrade the quality of data transmission.

Méthode d'exécution de commutation sans erreur dans un réseau annulaire ayant un ou plusieurs anneaux et un certain nombre de routes de transmission. Les temps de transmission ou les longueurs d'au moins certaines sections prédéterminées des routes sont comparés, et la comparaison est utilisée pour déterminer la valeur d'un premier retard ajouté à une des routes. Un autre retard est ajouté pour permettre la mise en phase des signaux nécessaire à la commutation sans erreur. Les retards sont ensuite réglés afin de réduire les retards cumulatifs qui pourraient détériorer la qualité de transmission des données.

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