TOUCH POSITION DETERMINING DEVICE AND METHOD, AND ELECTRONIC TOUCH-SENSITIVE DEVICE

摘要

In a device (2) for determining the position (P₁(X, y) ) of a touch on a contact surface (Ia) , a plurality of vibration sensors (4) are configured to detect mechanical vibrations (9) generated by the touch on the contact surface (1a) and to generate corresponding vibration signals, and a processing circuit (6) is connected to the vibration sensors (4) and is configured to determine the touch position (P₁ (x, y) ) via a time-of-f light algorithm, based on differences between times of detection (t₁, t₂, t₃) of the mechanical vibrations (9) by the vibration sensors (4) .