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Ultrasonic Pen for Interactive Computing Disclosure Number: IPCOM000065909D
Original Publication Date: 1985-Nov-01
Included in the Prior Art Database: 2005-Feb-19

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Coufal, H Seki, H [+details]


A combination of a selectively actuable ultrasonic source which can be used as a pointer on a display screen and a plurality of ultrasonic sensors positioned peripherally around the screen can be used for interactive computing in ways similar to the light pen or the mouse.