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1. WO2004072845 - SYSTEM FOR CERTIFYING WHETHER PRINTED MATERIAL CORRESPONDS TO ORIGINAL

Publication Number WO/2004/072845
Publication Date 26.08.2004
International Application No. PCT/JP2004/001425
International Filing Date 10.02.2004
Chapter 2 Demand Filed 10.09.2004
IPC
G06T 1/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
H04L 9/32 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
H04N 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
CPC
G06F 21/608
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
21Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
60Protecting data
606by securing the transmission between two devices or processes
608Secure printing
G06F 2221/2115
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2221Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
2115Third party
G06T 1/0021
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
0021Image watermarking
G06T 2201/0052
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2201General purpose image data processing
005Image watermarking
0052Embedding of the watermark in the frequency domain
H04L 2209/608
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
60Digital content management, e.g. content distribution
608Watermarking
H04L 9/3247
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3247involving digital signatures
Applicants
  • CANON KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • TAKARAGI, Yoichi [JP]/[JP] (UsOnly)
  • YOSHIHARA, Kunio [JP]/[JP] (UsOnly)
  • SHINAGAWA, Tatsuo [JP]/[JP] (UsOnly)
  • MATSUYA, Akihiro [JP]/[JP] (UsOnly)
  • TAKAHASHI, Kenichi [JP]/[JP] (UsOnly)
Inventors
  • TAKARAGI, Yoichi
  • YOSHIHARA, Kunio
  • SHINAGAWA, Tatsuo
  • MATSUYA, Akihiro
  • TAKAHASHI, Kenichi
Agents
  • OKABE, Masao
Priority Data
2003-03648814.02.2003JP
2003-06752913.03.2003JP
2003-09000228.03.2003JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM FOR CERTIFYING WHETHER PRINTED MATERIAL CORRESPONDS TO ORIGINAL
(FR) SYSTEME POUR CERTIFIER SI UN MATERIAU IMPRIME CORRESPOND A L'ORIGINAL
Abstract
(EN)
A data processing method, which is provided in an image processing system in which a server and a data processor communicate with each other to perform a predetermined data process, includes a step of extracting a feature amount of electronic data to be output from a printer, a step of transmitting original specifying information including the extracted feature amount and a user ID for discriminating a print requester of the electronic data, to the server, a step of controlling generation of print data to be output to the printer, based on original certification information notified by the server, and a step of causing the printer to print the generated print data and information indicating that the print data corresponds to an original. By this method, a large storage capacity is not required to certify one data, and to keep a secret of the stored electronic data is easy.
(FR)
L'invention porte sur un procédé de traitement de données mis au point dans un système de traitement d'image dans lequel un serveur et un processeur de données communiquent entre eux afin d'effectuer un traitement de données prédéterminé. Ce procédé consiste à extraire une quantité de caractéristiques de données électroniques devant être fournies par une imprimante, transmettre au serveur les informations de spécification originales comprenant la quantité de caractéristiques extraites et une identification utilisateur afin de différencier un demandeur d'impression ; contrôler la génération de données d'impression à envoyer à l'imprimante sur la base des informations de certification originales notifiées par le serveur, et commander à l'imprimante l'impression des données générées et des informations indiquant que les données d'impression correspondent à un original. Par ce procédé, il n'est pas nécessaire d'avoir une grande capacité de stockage pour certifier certaines données et il est facile de garder secrètes les données électroniques stockées.
Also published as
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