Unidirectional usb port

Details Unidirectional usb port Unidirectional usb port

G - Physics

06

F

G06F 13/40 (2006.01) G06F 13/42 (2006.01)

Patent

CA 2692395

A circuit interfaced between a first USB host and a second USB host for providing unidirectional transmission of data signals from the first USB host to the second USB host is provided. A first converter circuit is operable to receive data signals from the first USB host an convert them from a USB protocol to a second communications protocol. A second converter circuit is operable to receive the converted data signals from the first converter circuit and convert them from the second communications protocol to the USB protocol for transmission to the second USB host. The first and second converter circuits are electrically connected to each other in such a manner as to provide a transmission path from the first USB host to the second USB host and to disable a transmission path from the second USB host to the first USB host.

L'invention concerne un circuit faisant interface entre un premier hôte USB et un second hôte USB pour fournir une transmission unidirectionnelle de signaux de données, du premier hôte USB au second hôte USB. Un premier circuit convertisseur est opérationnel pour recevoir des signaux de données du premier hôte USB et les convertir d'un protocole USB à un second protocole de communication. Un second circuit convertisseur est opérationnel pour recevoir les signaux de données convertis du premier circuit convertisseur et les convertir du second protocole de communications au protocole USB pour transmission au second hôte USB. Les premier et second circuits convertisseurs sont connectés électriquement l'un à l'autre, de manière à fournir un chemin de transmission du premier hôte USB au second hôte USB et à désactiver un chemin de transmission du second hôte USB au premier hôte USB.

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