Digital anti-counterfeiting software method and apparatus

Details Digital anti-counterfeiting software method and apparatus Digital anti-counterfeiting software method and apparatus

1995-11-29

1998-01-13

Gregory, Bernarr E.

Cryptography

Electric signal modification

Having production of printed copy

380 9, 380 49, 380 54, 380 55, 283 72, 283 73, 283 85, 283 93, 283 17, 283 57, 283 58, G09C 500, B42D 1500, H04L 900

Patent

active

057087172

ABSTRACT:
This invention relates generally to a method and apparatus, as implemented by a software program on a computer system, for digitally producing counterfeit-deterring scrambled or coded indicia images, typically in a printed form. This method and system are capable of combining a source image with a latent image so the scrambled latent image is visible only when viewed through a special decoder lens. The digital processing allows different latent images to be encoded according to different parameters. Additionally, latent images might be encoded into single component colors of an original visible image, at various angles from each other.

REFERENCES:
patent: 3784289 (1974-01-01), Wicker
patent: 3937565 (1976-02-01), Alasia
patent: 5027401 (1991-06-01), Soltesz
patent: 5303370 (1994-04-01), Brosh et al.
patent: 5396559 (1995-03-01), McGrew

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