Data matrix identification

Describes a new identification code for marking products which attempts to solve the limitations of linear symbologies such as barcodes which are currently used throughout the packaging industry. The code, called a Data Matrix is read by a two dimensional CCD [charge couple device] camera and can contain up to 500 characters in a 0.05 in area. Describes the advantages of the Data matrix code, the process of “reading” the code and how the image is analysed and converted. Concludes that the Data Matrix code and reader represent significant technological advancements in the field of automatic identification.