Inventor
BUSCH JEFFREY W
US3 patents
Patents
3 patentsUS5181015AJan 19, 1993
Method and apparatus for calibrating an optical computer input system
PROXIMA CORP161 citations97
US5489923AFeb 6, 1996
Method and apparatus for calibrating an optical computer input system
PROXIMA CORP31 citations91
US5594468AJan 14, 1997
Optical system auxiliary input calibration arrangement and method of using same
PROXIMA CORP33 citations89