Patent · US Active

Authentication method of a two dimensional bar code

US10853712B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignee

Agfa NV · BE

Inventors

Joseph Vander Aa · Rijmenam, BE
Fabienne Goethals · Mortsel, BE
Rene GEELEN · Mortsel, BE

Key dates

Filing date	May 23, 2017
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Jul 14, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06K19/18
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method of producing a 2D barcode on an article including a laser markable layer, wherein the 2D barcode includes a primary information pattern representing primary information, which can be read by a 2D-barcode-reader, and a secondary information pattern embedded within the 2D barcode, which is difficult to reproduce without alteration, includes a laser marking step of exposing the laser markable layer with an infrared laser thereby forming the secondary information pattern of the 2D barcode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.