A bar code reader for reading a bar code 30 composed of a plurality of white bars and a plurality of black bars, includes a generating unit 8 for generating bar width values respectively showing a width of the read bars, a judging unit 12 for judging based on the bar width values whether or not the read...http://www.google.de/patents/US6247646?utm_source=gb-gplus-sharePatent US6247646 - Bar code reader, and bar code reading method
