H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 1/32 (2006.01)
Patent
CA 2446378
A self-authenticating printed document (101) comprises text and a symbol (102) printed on the document (101). The symbol (102) includes a verification value, which is representative of the entire data content of the text, and error correction codes for correcting the text. The verification value is used to check the integrity of the text after the document has been corrected using the error correction codes.
L'invention concerne un document imprimé à auto-authentification (101) comprenant du texte et un symbole (102) imprimés sur ce document (101). Ledit symbole (102) comporte une valeur de vérification représentative de l'intégralité du contenu de données du texte, ainsi que des codes de correction d'erreurs destinés à corriger ce texte. La valeur de vérification est utilisée pour contrôler l'intégrité du texte après une correction dudit document au moyen de ces codes de correction d'erreurs.
Duffell John
Martin Thomas
O'toole Laurence
Abathorn Limited
Authenticon Limited
Marks & Clerk
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