Optical media, read inhibiting agents, and methods of making...

G - Physics – 11 – B

Patent

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G11B 7/24 (2006.01) G11B 23/03 (2006.01)

Patent

CA 2586888

Apparatuses, products, devices and methods of manufacture consistent with the invention include optically readable media with at least one mechanism, chemical, agent, and/or process for limiting the time period that at least a portion of encoded information can be read and/or accessed by an optical beam and/or reader capable of reading the encoded information.

L'invention concerne des appareils, des produits, des dispositifs et des procédés de fabrication comprenant des supports lisibles de manière optique et comprenant au moins un mécanisme, un produit chimique, un agent et/ou un procédé permettant de limiter la durée pendant laquelle au moins une partie des informations codées peut être lue et/ou accédée par un faisceau optique et/ou un lecteur capable de lire les informations codées.

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