METHOD OF AND APPARATUS FOR IDENTIFYING ARTICLES

摘要

The identification sign is formed with a starting code, an intermediate information code and end code. The starting and end codes are used in the code recognition logic to indicate when a valid configuration of a pulse sequence of the identification sign has been read either forwards or backwards by a trace of a reader. The recognition logic can be constructed to initiate reading out of a valid configuration for further processing either in dependence on a single trace or two traces passing through the center of the identification sign.