A hand-held bar code reader, in particular a bar code wand is used by a consumer to read bar code information accompanying a product displayed at a retail outlet. The bar code information can be presented in, for example, UPC format and carries information relating to the products. The consumer subsequently...http://www.google.fr/patents/US6119944?utm_source=gb-gplus-shareBrevet US6119944 - Down-loadable hand-held optical reader
