Barcode copy protection system
US9311583B2 · kind B2 · utility
0Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jan 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/902
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A copy protection system for barcode includes a barcode pattern that is printed together with a security pattern that includes a line screen that intersects elements of the barcode pattern. A difference in print density between the barcode elements and the security pattern is sufficient to allow the barcode pattern to be read by a barcode scanner. However, upon reproduction of the printed barcode pattern and security pattern by a copier, the barcode pattern is not similarly readable on the resulting reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.