Device for controlling a computer-based pointer in a system...

Details Device for controlling a computer-based pointer in a system... Device for controlling a computer-based pointer in a system...

G - Physics

06

F

G06F 3/033 (2006.01) G09G 5/08 (2006.01)

Patent

CA 2707452

The general field of the invention is that of devices for controlling a computer-based pointer of a computer-based assembly comprising two different computer-based systems, a first secure system comprising at least a first viewing screen and a man-machine interface called CCD controlling the position of the pointer, a second non-secure system comprising at least one second viewing screen controlled by the same CCD. The control device according to the invention comprises a means called the "manager of the CCD" belonging to the first system, for ensuring the control of the transmission links of the CCD and comprising the following functions activated when a move instruction is transmitted by the user to the CCD, the pointer occupying a first position in the reference plane, determination of the new position of the pointer; determination of the zone of membership of the pointer as a function of this new position, authorization of transfer of the move instructions coming from the CCD to the secure system or to the open system corresponding to the previously determined membership zone.

Le domaine général de l'invention est celui des dispositifs de contrôle d'un pointeur informatique d'un ensemble informatique comportant deux systèmes informatiques différents, un premier système sécurisé comportant au moins un premier écran de visualisation et un interface homme-machine appelé CCD contrôlant la position du pointeur, un second système non sécurisé comportant au moins un second écran de visualisation contrôlé par le même CCD. Le dispositif de contrôle selon l'invention comporte un moyen appelé "manager du CCD" appartenant au premier système, assurant le contrôle des liaisons de transmission du CCD et comportant les fonctions suivantes activées lorsqu'une instruction de déplacement est transmise par l'utilisateur au CCD, le pointeur occupant une première position dans le plan de référence, détermination de la nouvelle position du pointeur; détermination de la zone d'appartenance du pointeur en fonction de cette nouvelle position, autorisation de transfert des instructions de déplacement venant du CCD vers le système sécurisé ou vers le système ouvert correspondant à la zone d'appartenance déterminée précédemment.

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