DEVICE FOR MULTIPLE-KEY ASSOCIATIVE OPTICAL INFORMATION SELECTION Russian patent published in 1997 - IPC

FIELD: computer engineering. SUBSTANCE: device has light source unit which inputs information in correlator as light beams, projection unit 2 which projects image of each associative key for all requested keys, controlled transparent gate 3 which displays page with request keys, unit 4 which distributes light beams which correspond to different associative keys as well as separates key beams from reference ones. In addition device has focusing unit 5 which adds optical signals, receiving unit 7 which converts optical signal to electric ones, and control unit 8. EFFECT: increased reliability of search, increased speed. 2 dwg