Standard for coding of an item of numerical information on a surface, article or a safety device (SUP).The method to set a standard for encoding an item of numerical information on a surface, method for reading an item of numerical information.Marking system suitable for implementing the method, and the reading system suitable to implement the method.

摘要

A pattern for coding numerical a information item on a surface, including a specific arrangement of a plurality of symbols belonging to a set of symbols (ENS1), and each symbol in the arrangement being intended for the coding of a portion of said numerical information item, wherein each symbol includes at least one differential pair of elements (E1, E2) positioned in a specific way, each element being characterized by a parameter, the parameter of the first element of each differential pair having a first value and the parameter of the second element of each differential pair having a second value different from the first value.