Multipoint touch surface controller

Details Multipoint touch surface controller Multipoint touch surface controller

G - Physics

06

F

G06F 3/044 (2006.01)

Patent

CA 2649472

A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.

L'invention concerne un contrôleur de surface tactile multipoint. Ce contrôleur comprend un circuit intégré comportant un circuit de sortie destiné à commander un capteur capacitif tactile multipoint, ainsi qu'un circuit d'entrée conçu pour lire le capteur. Cette invention se rapporte en outre à différentes techniques pour améliorer l'élimination de bruit et la gamme dynamique, qui permettent d'utiliser le contrôleur avec différents capteurs, dans différentes conditions, sans reconfiguration matérielle.

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