Inventor
KOOLEN GERARDUS J K M
NL3 patents
Patents
3 patentsUS5541372AJul 30, 1996
Force activated touch screen measuring deformation of the front panel
PHILIPS CORP261 citations95
US5777607AJul 7, 1998
Low-cost resistive tablet with touch and stylus functionality
PHILIPS CORP83 citations91
US5767458AJun 16, 1998
Low-pass filter of graphical tablet has cut-off frequency lower than sampling frequecy
PHILIPS CORP3 citations58