ATR Auditory and Visual Perception Research Laboratories

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6330358 Apparatus for character segmentation and apparatus for character recognition using the sameExpiredApr 17, 95Dec 11, 01[G06K]
5845020 Character recognizing apparatusExpiredJun 11, 93Dec 01, 98[G06K]
5459815 Speech recognition method using time-frequency masking mechanismExpiredJun 21, 93Oct 17, 95[G10L]
5459861 Evaluation support method for retrieved dataExpiredMar 22, 93Oct 17, 95[G06F]
5382989 Apparatus for examining gaze shift in depth directionExpiredMar 16, 93Jan 17, 95[A61B]
5365941 Apparatus for detecting small involuntary movementExpiredJun 16, 93Nov 22, 94[A61B]
5365600 Image processing systemExpiredJun 11, 93Nov 15, 94[G06K]
5357293 Apparatus for analyzing depth perceptionExpiredMar 11, 93Oct 18, 94[A61B]
5345944 Apparatus for medical diagnosis utilizing masking of fixation pointExpiredMar 16, 93Sep 13, 94[A61B]
5323471 Pattern recognition apparatus and pattern learning apparatus employing neural net including excitatory element-inhibitory element pair couplingsExpiredMar 30, 92Jun 21, 94[G06K]
5311879 Medical diagnostic apparatus utilizing line-of-sight detectionExpiredDec 18, 92May 17, 94[A61B]
5305764 Medical diagnostic apparatus utilizing line-of-sight detectionExpiredDec 18, 92Apr 26, 94[A61B]
5212506 Analysis method of eyeball control systemExpiredSep 17, 91May 18, 93[A61B]

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