An identification instrument such as a pocket-sized card includes both human-recognizable and machine-readable indicia. The human-recognizable material may be any combination of photographs, graphical or textual information, with the machine-readable section encoding any or all of the human-recognizable...http://www.google.fr/patents/US5913542?utm_source=gb-gplus-shareBrevet US5913542 - System for producing a personal ID card
