Synchronized multichannel universal serial bus

Details Synchronized multichannel universal serial bus Synchronized multichannel universal serial bus

G - Physics

06

F

G06F 13/42 (2006.01)

Patent

CA 2492811

The invention provides a method and apparatus for providing a synchronized multichannel universal serial bus, the method in one aspect comprising supplementing the signal channels in the USB specification to provide synchronization information from an external source (24), and in another aspect comprising observing USB traffic and locking a local clock signal of a USB device (10) to a periodic signal contained in USB data traffic, wherein the locking is in respect of phase and/or frequency.

L'invention concerne un procédé et un appareil permettant de fabriquer un bus USB multivoie synchronisé. Dans un aspect, ce procédé consiste à ajouter les voies de signal dans la spécification USB afin d'obtenir des informations de synchronisation d'une source extérieure (24). Dans un autre aspect, ce procédé consiste à observer le trafic USB et à verrouiller un signal d'horloge local d'un dispositif USB (10) sur un signal périodique présent dans le trafic USB, le verrouillage se faisant par rapport à la phase et/ou à la fréquence.

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