Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Patent
1997-11-03
2000-06-20
Chang, Kent
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
178 1804, G09G 500
Patent
active
06078315&
ABSTRACT:
A touch position sensor is shown in which a transducer or transducer array mounted to a side of a substrate generates pulse shear-mode acoustic wave and receives the partial wave reflected by the finger or other styles. An electronic circuitry connected to the transducers determine the position of the finger or style in geometrical coordinate terms by detecting time interval between the transmitted wave and reflected wave.
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Chang Kent
MicroTouch System Inc.
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