Importance

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Abstract

This device for locating an impact against a transparent interactive surface comprises at least three transducers distributed against the interactive surface and at least one calculator programmed to locate the impact by analysing time differences of propagation of progressive mechanical waves from the impact to the transducers on the basis of instants of impact detection identified in the electrical signals supplied by the transducers. It further comprises: a protective case, integral with the transparent interactive surface, intended to receive at least a portion of an electronic device with a display screen in such a way as to place the display screen facing the transparent interactive surface; means for adjusting the display screen for the centring thereof on a mark carried by a marking on the transparent interactive surface; and a calculator programmed to convert the location of the impact in the transparent interactive surface into a location of the impact in the display screen.

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First Claim