US 6,212,504 · Granted 2001-04-03
Self-authentication of value documents using encoded indices
A method and system as presented by which valuable documents such as checks, deeds, driver's licenses, and other types of valuable documents can be imprinted with encoded symbols by a printer whereupon multiple assemblages of data can be imprinted on the valued document which is then susceptible to readout by a document reader which will automatically authenticate and verify the originator or the document and its authenticity and obviate any attempts for fraudulent alteration.
Patent details
- Publication number
- US 6,212,504
- Filing date
- 1999-01-06
- Grant date
- 2001-04-03
- Assignee
- Unisys Corporation
- Inventor(s)
- HAYOSH THOMAS DAVID
- CPC class
- B42D25/29
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