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US 2006/0233057 A1Published application
Ultraviolet activating system for preventing digital piracy from recording media
OwnerRichard Selinfreundinventor
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Abstract
An optical medium piracy method and system employing a ultraviolet-sensitive state-change material capable of changing state upon activation with a wavelength of ultraviolet between 253+/−25 nm to 365+/−25 nm, the state-change material in association with digital data indicia, wherein when the state-change material is activated to change state by the ultraviolet radiation, the optical medium moves from an unreadable to a readable condition, or from a less readable to more readable condition.
Claims10
A method for piracy protection of digital recording medium comprising:
- obtaining a digital recording medium packaged in a polymeric housing, said digital recording medium comprising a ultraviolet-sensitive state change material in association with digital data indicia indicative of a valid or error read state, said state-change material being associated with said digital data indicia in a manner such that upon activation of the state-change material by ultraviolet wavelengths between 253+/−25 nm to 365+/−25 nm, the associated digital data indicia read by a reader is read as another valid or error state, or another read state, and wherein the change of the digital data state permits more information to be read by a reader from the digital recording medium;
- directing ultraviolet radiation at a wavelength of between 253+/−25 nm to 365+/−25 nm through said packaging housing at said digital recording medium.
A system for piracy protection of digital recording medium, said system comprising:
- a digital recording medium packaged in a polymeric housing, said digital recording medium comprising a ultraviolet-sensitive state-change material in association with digital data indicia indicative of a valid or error read state, said state-change material being associated with said digital data indicia in a manner such that upon activation of the state-change material by ultraviolet wavelengths between 253+/−25 nm to 365+/−25 nm that the associated digital data indicia read by a reader is read as another valid or error state, or another read state, wherein the change of the digital data state permits more information to be read by a reader of the digital recording medium;
- and
- an ultraviolet radiation emitter emitting a wavelength of between 253+/−25 nm to 365+/−25 nm capable of emitting such waves at the packaged digital recording medium.
Dependencies are inferred from the claim text.