Resistive touchscreen having multiple selectable regions for...

G - Physics – 08 – C

Patent

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G08C 21/00 (2006.01) G09G 3/02 (2006.01)

Patent

CA 2274916

A resistive two sheet touchscreen that provides discrimination between objects touching the surface thereof. This is achieved by subdividing one sheet into a selected number of separated portions (50A, 50B, 52A, 52B) of selected configuration. Each of these portions is connected through a switch apparatus to circuitry for evaluating a signal on the separated portions corresponding to the position of touch. This switch can be utilized to deactivate any selected portion (50A, 50B) so that an object contacting this portion provides no signal to the circuitry. Any active portion that remains connected to the circuitry provides position information as with any touchscreen.

L'invention concerne un écran tactile résistant à deux feuilles qui permet d'effectuer une discrimination entre objets en touchant la surface. Pour ce faire, on divise une feuille en un nombre sélectionné de parties séparées (50A, 50B, 52A, 52B) dont la configuration est sélectionnée. Chaque partie est connectée par un commutateur au circuit permettant d'évaluer un signal sur les parties séparées correspondant à la position de désignation tactile. Ce commutateur peut servir à désactiver toute partie sélectionnée (50A, 50B) de manière qu'un objet en contact avec cette partie n'apporte aucun signal au circuit. Toute partie active qui reste connectée au circuit fournit des informations sur la position, comme le fait tout écran tactile.

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