| 摘要 |
FIELD: printing industry. ^ SUBSTANCE: counterfeit-proof document relates to data media. It contains graphical ornament for visual reproduction of data on a person and/or item. Ornament includes at least one image and/or text data, and with the help of specified printing logic it is applied onto secured document so that it has electromagnet characteristic specified by printing logic and read by means of logical circuit contained in secured document. Electromagnetic characteristic of electroconductive ornament is inductance, capacitance or frequency characteristic. Graphical ornament is applied onto secured document in the form of linear raster. At the same time lines of linear raster are joined to each other in the form of meander or are arranged in parallel. Version of counterfeit-proof document is the document with graphical ornament applied by electroconductive invisible paint transparent for human eye onto counterfeit-proof document. Other characteristics of this document are identical to characteristics of the first version document specified above. ^ EFFECT: enhanced protection against document forgery. ^ 10 cl, 7 dwg |
