Steganographic methods and apparatuses

Details Steganographic methods and apparatuses Steganographic methods and apparatuses

H - Electricity

04

L

H04L 9/32 (2006.01) G06T 1/00 (2006.01) G06T 9/00 (2006.01) G10L 19/00 (2006.01) G11B 20/00 (2006.01) H04N 1/00 (2006.01) H04N 5/91 (2006.01) H04N 5/913 (2006.01)

Patent

CA 2174413

An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned and the carrier thereby identified. The method and apparatus are characterized by robustness despite degradation of the encoded carrier, and by holographic permeation of the identification signal throughout the carrier. An exemplary embodiment is a processor that embeds the identification signal onto a carrier signal in real time.

Un signal de code d'identification est imprimé sur un support destiné à être identifié (tel qu'un signal de données électronique ou un support physique) de sorte que le signal d'identification puisse être reconnu par la suite et que le support puisse être identifié. Lesdits procédé et appareil se caractérisent par leur robustesse en dépit de la détérioration du support codé, et par une pénétration holographique du signal d'identification dans le support. Dans un mode de réalisation cité en exemple, un processeur intègre le signal d'identification sur un signal porteur en temps réel.

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