FIELD: information technology.
SUBSTANCE: data medium has a substrate having a portion with a distinctive feature formed by a family of curves which includes a plurality of arched and/or diverging slit lines. Inside the portion with a distinctive feature there is an identification mark which is configured for visual or computer recognition and is a pattern, symbols or code. Said identification mark is formed by a portion of the substrate which does not have slits and has a family of marking curves, which includes a plurality of marking lines connected to the slit lines outside the identification mark.
EFFECT: high degree of counterfeit protection.
22 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MARKED DATA CARRIER | 2011 |
|
RU2588446C2 |
| DATA MEDIUM WITH SEE-THROUGH PORTION | 2009 |
|
RU2508203C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2007 |
|
RU2424909C2 |
| METHOD AND DEVICE TO PRODUCE IDENTIFICATION MARKS ON PROTECTED DOCUMENTS | 2005 |
|
RU2367579C2 |
| PROTECTION PROPERTY AND METHOD FOR ITS MANUFACTURE | 2008 |
|
RU2464177C2 |
| METHOD OF MANUFACTURING SECURITY OR VALUABLE DOCUMENT | 2009 |
|
RU2503547C2 |
| DATA CARRIER HAVING WINDOW | 2010 |
|
RU2499674C1 |
| METHOD OF PRODUCING DATA CARRIER PRINTED BY MEANS OF LASER, DATA CARRIER PRODUCED BY THE METHOD AND BLANK FOR THE CARRIER | 2001 |
|
RU2267406C2 |
| DATA MEDIUM AND METHOD FOR ITS MANUFACTURING | 2006 |
|
RU2407651C2 |
| VALUABLE DOCUMENT | 2005 |
|
RU2381906C2 |
