An optical reader for reading high density dibit encoded data from a data strip comprises an optical detector (13) and a detector (14,15,DSP) connected to the optical detector (13) and arranged to decode its output. The detector includes a row of photosensitive elements arranged to extend transversely...http://www.google.fr/patents/US5200598?utm_source=gb-gplus-shareBrevet US5200598 - Optical reader
