System for providing an input signal, device for use in such...

G - Physics – 06 – F

Patent

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G06F 3/033 (2006.01) G06F 3/00 (2006.01)

Patent

CA 2478638

A system for providing an input signal, comprises an element (M,1) controllable by a user by means of interaction with a user's limb, which system comprises a sensor (5,6) capable of detecting the presence of a limb placed over at least part of the element (M,1), timing means (2) for determining the length of a time during which the limb is present and means (11,9,7,8) of generating an alarm signal if the length of time exceeds a threshold value. The alarm signal can be used to effect discontinuation of the presence of the limb.

L'invention concerne un système permettant de fournir un signal d'entrée, qui comprend un élément (M1) pouvant être commandé par l'utilisateur au moyen d'une interaction avec un membre de l'utilisateur. Ce système comprend: un capteur (5,6) pouvant détecter la présence d'un membre placé sur au moins une partie de l'élément (M1), un moyen de synchronisation (2) permettant de déterminer la durée pendant laquelle le membre de l'utilisateur est présent, et un moyen (11, 9, 8, 7) permettant de produire un signal d'alarme si cette durée dépasse une valeur seuil. Ce signal d'alarme peut être utilisé pour signaler l'absence du membre de l'utilisateur.

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