US 5,841,886 · Granted 1998-11-24
Security system for photographic identification
Security of photographic identification documents is enhanced by embedding within the photographic image encoded information that may be correlated to other information pertaining to the individual represented by the image, such other information being, for example, printed on the document adjacent to the photograph.
Patent details
- Publication number
- US 5,841,886
- Filing date
- 1996-12-04
- Grant date
- 1998-11-24
- Assignee
- Digimarc Corporation
- Inventor(s)
- RHOADS; GEOFFREY B.
- CPC class
- B42D25/42
Want to file your own patent?
Run your idea through our free scanner — we’ll show you which existing patents are conceptually closest, including this one if it’s a match.
Free patentability scan