Method and apparatus for transaction card security utilizing embedded image data
US6536665B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Jan 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/125
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A highly secure personal identification badge is achieved by having an area which contains machine readable information and also having a printed region having embedded data in the image printed thereon. A method of producing the identification badge, includes the steps of: forming a digital image of the badge holder; generating an array of random numbers using a random number generator that employs a seed value; adding the array of random numbers to the digital image to produce a modified digital image; and printing the modified digital image on the identification badge. The badge is authenticated by scanning the image on the identification badge to produce a recovered digital image; and correlating the array of random numbers with the recovered digital image to produce a validity check of the identification badge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.