A bar code symbology comprises a set of symbols having characters and patterns of bars and spaces. Each character spans a distance of m module widths and is represented by n bars and p interleaved spaces. The largest single bar or space is limited to k modules in width. A human recognizable graphic element...http://www.google.fr/patents/US6732932?utm_source=gb-gplus-shareBrevet US6732932 - Bar code symbology with integrated user-interface graphic pattern
Bar code symbology with integrated user-interface graphic pattern
