Apparatus, method, and computer program product for playing back content

Apparatus, method, and computer program product for playing back content

A content playback apparatus includes an SKF selecting unit that selects one segment key file from plural segment key files recorded in a DVD media at a time of playback of a content of the sequence key section, a data selecting unit that selects each content corresponding to a segment number of eac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TOBITA YOSHIKATA, KATO TAKU, HARUKI KOSUKE, KASHIHARA YUTAKA, KAMIBAYASHI TOORU, NAGAI YUJI, NAKAMURA SEIICHI, ISHIHARA ATSUSHI, MATSUSHITA TATSUYUKI, ISOZAKI HIROSHI, MAWATARI MASAHIKO
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:A content playback apparatus includes an SKF selecting unit that selects one segment key file from plural segment key files recorded in a DVD media at a time of playback of a content of the sequence key section, a data selecting unit that selects each content corresponding to a segment number of each key entry registered in the selected segment key file, a moving picture data decrypting unit that decrypts the selected moving picture data by a segment key corresponding to the segment number, and a decoder that plays back the decrypted moving picture data.