A method and apparatus are provided for detecting bar-space and space-bar transitions in a bar code symbol. A sequence of sparsely sampled analog signals from a photodetector in a bar code scanner is representative of the reflectance pattern of a symbol....http://www.google.fr/patents/US5286960?utm_source=gb-gplus-shareBrevet US5286960 - Method of programmable digitization and bar code scanning apparatus employing same
Method of programmable digitization and bar code scanning apparatus ...
