CONTENTS DATA, RECORDING MEDIUM, RECORDING METHOD AND DEVICE, REPRODUCING METHOD AND DEVICE

• Main Author: SAKO, YOICHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 06.12.2001
• Edition: 7
• Subjects: ACOUSTICS; ADVERTISING; CALCULATING; CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY; COMPUTING; COUNTING; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; MUSICAL INSTRUMENTS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Contents data or a recording medium, comprising encrypted data unit consisting of encrypted contents data, and a plain text data unit read prior to the encrypted data unit and consisting of plain data having embedded therein additional information containing information for decrypting encrypted contents data. Données de contenus ou support d'enregistrement composés d'une unité de données chiffrées consistant en des données de contenus chiffrées et d'une unité de données de texte en clair reproduite préalablement à l'unité de données chiffrées et consistant en des données en clair dans lesquelles est incorporée une information supplémentaire contenant des indications servant à déchiffrer les données de contenus chiffrées.