FIELD: information technologies.
SUBSTANCE: coherent source of light sends beam for illumination of article, and detector plant collects information points from light scattered from multiple various parts of article for collection of larger number of independent information points, as a rule, 500 or more. Having collected larger number of independent contributions of signals specific for multiple various parts of article, it is possible to calculate digital signature unique for scanned area of article. This measurement may be repeated every time, when it is required to verify authenticity of article.
EFFECT: invention makes it possible to improve article protection against forgery without production of specific markers.
46 cl, 16 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| AUTHENTICITY VERIFICATION | 2006 |
|
RU2417448C2 |
| METHODS, PRODUCTS AND DEVICES FOR AUTHENTICATION | 2005 |
|
RU2391702C2 |
| METHODS AND DEVICES FOR CREATION OF PRINTING PRODUCTS WITH POSSIBILITY OF THEIR IDENTIFICATION AND THEIR SUBSEQUENT VERIFICATION | 2005 |
|
RU2380750C2 |
| METHOD OF CREATING SIGNATURE FOR GEMSTONE USING X-RAY IMAGING | 2015 |
|
RU2690707C2 |
| METHOD OF HIDDEN SMALL-INVASIVE MARKING OF OBJECT FOR ITS IDENTIFICATION | 2016 |
|
RU2644121C2 |
| METHOD OF COHERENT X-RAY PHASE MICROSCOPY | 2010 |
|
RU2426103C1 |
| METHOD OF READING AND DECODING BAR CODES WITH RECORDING OF DATE, TIME AND COORDINATES OF POINT SCANNING | 2014 |
|
RU2580442C2 |
| COMPOSITE MARK | 2009 |
|
RU2413964C1 |
| SECURITY ELEMENT | 2009 |
|
RU2493968C2 |
| METHOD FOR PRODUCING VALUABLE DOCUMENT, VALUABL DOCUMENT AND METHOD FOR DETERMINING ITS AUTHENTICITY | 2016 |
|
RU2616448C1 |
