Document with an authentication feature

摘要

The invention relates to a document (2) with an authentication feature (10) consisting of at least one base or carrier material (4) with integrated characteristics (11-13) physically differing from the base or carrier material (4), and an electronic switching circuit (5) formed more particularly by a microprocessor (6) with an interface to at least one reading device for said characteristics (11-13), and in which the characteristics (11-13) are stored in an at least biaxial coordinate system in a memory unit in order to form an identifier. At least one further parameter is formed in the coordinate system by at least one of the physical features of the characteristics (11-13). The characteristics (11-13) are positioned in at least one randomly selected part of the document 92) and at least one of the physical features of the characteristics (11-13) is stored in the memory unit for comparison with the determinable positions and physical features of the characteristics (11-13) before each use.