Integrated image scrambling and descrambling

Details Integrated image scrambling and descrambling Integrated image scrambling and descrambling

1996-12-16

1999-01-26

Fridie, Jr., Willmon

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing superposed layers

283901, 283 72, B42D 1500

Patent

active

058630759

ABSTRACT:
A method for printing a scrambled image and decoding mechanism in registration one on top of the other. The decoding mechanism is not immediately apparent upon inspection. A person decodes the scrambled image by exposing the decoding mechanism.

REFERENCES:
patent: 4586711 (1986-05-01), Winters et al.
patent: 5002313 (1991-03-01), Salvatore
patent: 5346258 (1994-09-01), Behm et al.
patent: 5601887 (1997-02-01), Rich et al.
patent: 5769458 (1998-06-01), Carides et al.

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