Capacitance based human touch activation and switching device

Details Capacitance based human touch activation and switching device Capacitance based human touch activation and switching device

H - Electricity

03

K

H03K 17/955 (2006.01) B60Q 5/00 (2006.01) G01D 5/24 (2006.01) H03K 17/96 (2006.01)

Patent

CA 2494921

A capacitance based human touch activation and switching device includes an electrode adjacent a hand contact area. The electrode is part of a capacitor and is connected to a detection device that monitors the capacitance. When a user hand is near the electrode, the capacitance increases. Based upon the change in capacitance, the device activates a switch, such as a vehicle horn, dome light or other vehicle accessory.

L'invention concerne un dispositif d'activation et de commutation du toucher humain de type capacitatif, qui comporte une électrode jouxtant une zone de contact manuel. L'électrode, qui fait partie d'un condensateur, est reliée à un dispositif de détection qui surveille la capacitance. Lorsque l'utilisateur approche la main de l'électrode, la capacitance augmente. Sur la base de la modification de la capacitance, le dispositif active un commutateur, par exemple le klaxon d'un véhicule, le plafonnier ou autre accessoire du véhicule.

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