Optical switch

H - Electricity – 04 – Q

Patent

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Details

H04Q 11/00 (2006.01) G02B 6/35 (2006.01) G02B 26/08 (2006.01)

Patent

CA 2434797

An optical switch comprises a hub and a plurality of nodes with the hub being connected to each node by an optical communication link dedicated for clock signals and by an optical communication link dedicated for data signals. In use the hub transmits a clock signal to all of the nodes; each node re-transmits a copy of the clock signal to the hub and transmits a data signal to the hub. The hub returns each re-transmitted clock signal to its respective node and forwards a copy of each data signal to all of the nodes so that each node can receive a selected data signal by processing the re-transmitted clock signal.

L'invention concerne un commutateur optique qui comprend un concentrateur et une pluralité de noeuds, le concentrateur étant connecté avec chaque noeud par une liaison de communication optique spécifique de signaux d'horloge et par une liaison de communication optique spécifique de signaux de données. Pendant l'utilisation, le concentrateur transmet un signal d'horloge à tous les noeuds et chaque noeud retransmet une copie du signal d'horloge au concentrateur et transmet un signal de données au concentrateur. Le concentrateur renvoie chaque signal d'horloge transmis au noeud respectif et envoie une copie de chaque signal de données à tous les noeuds de manière que chaque noeud peut recevoir un signal de données sélectionné en traitant le signal d'horloge retransmis.

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