US 8,171,567 · Granted 2012-05-01
Authentication method and system
The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides a system and method for providing a dynamically reconfigurable watermark, and the use of the watermark to encode a stochastically variable property of the carrier medium for self-authentication purposes.
Patent details
- Publication number
- US 8,171,567
- Filing date
- 2003-09-04
- Grant date
- 2012-05-01
- Assignee
- Tracer Detection Technology Corp.
- Inventor(s)
- FRASER JAY, WEBER LARRY
- CPC class
- G06T1/0021
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