EP 1839277 A1 20071003 - METHOD FOR CHECKING THE AUTHENTICITY OF GOODS
Title (en)
METHOD FOR CHECKING THE AUTHENTICITY OF GOODS
Title (de)
VERFAHREN ZUR AUTHENTIZITÄTSPRÜFUNG VON WAREN
Title (fr)
PROCEDE DE CONTROLE D'IDENTITE DE MARCHANDISES
Publication
Application
Priority
- EP 2005013445 W 20051214
- DE 102004060315 A 20041215
Abstract (en)
[origin: WO2006063817A1] The invention relates to a method for checking the authenticity of goods, comprising marking and identifying the goods. According to the inventive method, (i) a mark is applied to the surface of an article in the form of a pattern with a pattern function M(x, y) in a marking step, said mark creating a local modification of the physically measurable properties of the surface of the article in the area of the mark which cannot be perceived by the eye; (ii) the transmission, reflection, or scattering of analytical radiation by the surface of the article is detected in accordance with the location coordinates (x, y) and the wavelength ? of the analytical radiation, a response function A(x, y, ?) that reflects the intensity of the transmitted, reflected, or scattered analytical radiation is determined in accordance with the local coordinates (x, y) and the wavelength ?, and the correlation of the response function A(x, y, ?) with the previously known pattern function M(x, y) is determined by means of a correlation analysis in an identification step, the mark being detected using the correlation.
IPC 8 full level
G07D 7/00 (2006.01)
CPC (source: EP US)
G07D 7/004 (2013.01 - EP US)
Citation (search report)
See references of WO 2006063817A1
Citation (examination)
- DE 10115949 A1 20021002 - ORGA KARTENSYSTEME GMBH [DE]
- WO 0204233 A1 20020117 - EKC TECHNOLOGY INC [US]
- FR 2755902 A1 19980522 - SARL IND LASER PARTNER [FR]
- US 2002108398 A1 20020815 - SMITH JAMES GORDON CHARTERS [GB], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102004060315 A1 20060622; CN 101099177 A 20080102; CN 101099177 B 20100908; EP 1839277 A1 20071003; US 2009266875 A1 20091029; WO 2006063817 A1 20060622
DOCDB simple family (application)
DE 102004060315 A 20041215; CN 200580046458 A 20051214; EP 05850046 A 20051214; EP 2005013445 W 20051214; US 72190705 A 20051214