Marked article and method of making the same
First Claim
24. A method for making a storage medium, comprising:
- combining a thermoplastic with a light-marking additive to form a blend;
injection molding the blend to form a substrate;
disposing a reflective layer on the substrate to form a medium; and
exposing a portion of the substrate to a marking wavelength to form a light-mark in the substrate.
3 Assignments
0 Petitions
Accused Products
Abstract
A storage medium can comprise a substrate, a reflective layer disposed on a side of the substrate, and data. The substrate can comprise a thermoplastic and a light-mark formed from at least a portion of light-marking additive mixed with the thermoplastic, wherein an optical property of the light-marking additive at an optical drive read wavelength can change due to being contacted with a mark wavelength. A method for using a storage medium can comprise directing a reading device to detect an inspection area of the storage medium, and wherein the inspection area on an authentic medium has a light-mark in a substrate of the storage medium that forms an optically induced signature. The optically induced signature can be converted to a digital identification signature and the digital identification signature can be verified for authenticity.
143 Citations
34 Claims
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24. A method for making a storage medium, comprising:
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combining a thermoplastic with a light-marking additive to form a blend;
injection molding the blend to form a substrate;
disposing a reflective layer on the substrate to form a medium; and
exposing a portion of the substrate to a marking wavelength to form a light-mark in the substrate. - View Dependent Claims (25, 26, 27, 28, 29, 33, 34)
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30. A method for using a storage medium, comprising,
directing a reading device to detect an inspection area of the storage medium, and wherein the inspection area on an authentic medium has a light-mark in a substrate of the storage medium that forms an optically induced signature; -
converting the optically induced signature to a digital identification signature; and
verifying the authenticity of the digital identification signature. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 31, 32)
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31-1. The method of claim 30, wherein, if the reading device is signaled to install, further comprising updating the central data base that this storage medium has been used for installation.
Specification