Method and device for authenticating documents marked with photochromic systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 2016
Grant Date -
Feb 13, 2014
app pub date -
Nov 22, 2011
filing date -
Dec 22, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for checking the genuineness of a security feature on a security document. The security feature exhibits an alteration in the visible range when excited by a flash of light. The method comprises taking at least one first image of the unexcited security feature using a mobile telephone camera with an integrated flash function. Then, exciting at least one second image of the security feature using the flash function of the same mobile telephone. Optionally, setting up a wireless link using the telephone function or an Internet function on the mobile telephone, and at least one or both of the images or an authentication function derived from the difference between the two images is/are transmitted to a receiver having a database, the authentication is evaluated and/or the authentication is logged with the receiver.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully