A bar code reader includes a first and second memory arrangement in which a two dimensional image containing the image of a bar code symbol at a random location and orientation is stored in a first memory. Thereafter, the contents of the first memory is processed by a specialized controller to determine...http://www.google.se/patents/US5512739?utm_source=gb-gplus-sharePatent US5512739 - Dual processor omnidirectional bar code reader with dual memory for bar code location and orientation