A method and apparatus for decoding a two-dimensional bar code symbol using a charge-coupled device (CCD) camera or a charge-modulation device (CMD) camera. The CCD/CMD camera takes pictures of the symbol and the picture is converted into digital data. The location and orientation of the two-dimensional...http://www.google.fr/patents/US5319181?utm_source=gb-gplus-shareBrevet US5319181 - Method and apparatus for decoding two-dimensional bar code using CCD/CMD camera
Method and apparatus for decoding two-dimensional bar code using CCD/CMD camera
