A scanning head for reading bar code symbols includes a laser source producing a beam which is scanned across a symbol to be read by a moving mirror arrangement, and a photodetector responsive to a light reflected from the symbol. The signal from the photodetector is digitized and decoded to recover...http://www.google.fr/patents/US5321246?utm_source=gb-gplus-shareBrevet US5321246 - Bar code scanner with RF coupling to base terminal and automatic turn-off upon decode
Bar code scanner with RF coupling to base terminal and automatic turn-off ...
