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US 2001/0011682 A1Published application
Material coding using lasers
AssigneeTechnolines LLC
InventorsDARRYL J. COSTIN, CARL J. HILDEBRAND JR.
Life of this patent
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Abstract
A laser marking system encodes a code on an article, eg an article of clothing. The code is detected by a camera or other imaging system that does not require reflectivity for its proper operation.
Claims4
A method of laser marking coding and decoding, comprising:
- using a laser to mark information on an article which represents some characteristic of the material, said information being marked by using the laser to change the material in a way that changes the physical appearance of the material;
- imaging the information from the article using an image system which does not require reflectivity;
- and
- decoding the imaged information to determine the characteristic of the material.
1 more element
Dependencies are inferred from the claim text.