A versatile graphical code reader that is configured for efficient decoding is disclosed. In an exemplary embodiment, the graphical code reader includes an image sensor. The graphical code reader also includes a region selection component that selects a first region of a digital image obtained from the...http://www.google.com.tw/patents/US6942152?utm_source=gb-gplus-share專利 US6942152 - Versatile graphical code reader that is configured for efficient decoding
