Method for creating a fingerprint image on an optical memory card
First Claim
1. A method for imaging a fingerprint on an optical memory card having an upper transparent cover, a base and an optical medium therebetween, comprising:
- placing a finger on said upper transparent cover and leaving a fingerprint, including a pattern of ridges and valleys, on said upper transparent cover;
removing said finger from said upper transparent cover; and
directing a laser beam at said fingerprint wherein said laser beam alters optical medium portions beneath the fingerprint corresponding to said valleys and said laser is prevented from altering optical medium portions beneath the fingerprint corresponding to said ridges, said altered and non-altered portions forming an image of said fingerprint on said optical medium.
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Accused Products
Abstract
A method for imaging a fingerprint on an optical memory card having an upper transparent cover, a base and optical medium therebetween, wherein a cardholder imprints a fingerprint having a pattern of ridges and valleys on the upper cover of the card and a laser beam is scanned over the fingerprint. The laser beam is selectively transmitted by the fingerprint. The laser beam burns pits into optical medium areas corresponding to valleys of the fingerprint and is prevented from burning pits into optical medium areas corresponding to the ridges, thus producing a fingerprint image comprising light and dark areas in the optical medium corresponding to the pattern of ridges and valleys of the user'"'"'s fingerprint.
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Citations
16 Claims
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1. A method for imaging a fingerprint on an optical memory card having an upper transparent cover, a base and an optical medium therebetween, comprising:
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placing a finger on said upper transparent cover and leaving a fingerprint, including a pattern of ridges and valleys, on said upper transparent cover;
removing said finger from said upper transparent cover; and
directing a laser beam at said fingerprint wherein said laser beam alters optical medium portions beneath the fingerprint corresponding to said valleys and said laser is prevented from altering optical medium portions beneath the fingerprint corresponding to said ridges, said altered and non-altered portions forming an image of said fingerprint on said optical medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification