Touch sensitive device employing impulse reconstruction

Details Touch sensitive device employing impulse reconstruction Touch sensitive device employing impulse reconstruction

2008-01-01

2008-01-01

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S177000, C345S160000, C345S169000, C178S018010, C178S018030, C178S018040

Reexamination Certificate

active

07315300

ABSTRACT:
A touch sensitive apparatus includes a touch plate and a number of sensors coupled to the touch plate. Each of the sensors is configured to sense bending waves in the touch plate and, in response to a touch to the touch plate, generate sensor signals. A controller is coupled to the sensors. The controller corrects for dispersion in the sensor signals and determines a location of the touch using the dispersion corrected signals. The controller performs impulse reconstruction, by which impulses representative of impulses generated by the touch to the touch sensitive device are produced. Using the reconstructed impulses, the controller confirms the location of the touch.

REFERENCES:
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patent: 2001/0006006 (2001-07-01), Hill
patent: WO 01/48684 (2001-07-01), None
patent: WO 03/005292 (2003-01-01), None
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