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...
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| creator | TOBITA YOSHIKATA KATO TAKU HARUKI KOSUKE KASHIHARA YUTAKA KAMIBAYASHI TOORU NAGAI YUJI NAKAMURA SEIICHI ISHIHARA ATSUSHI MATSUSHITA TATSUYUKI ISOZAKI HIROSHI MAWATARI MASAHIKO |
| description | 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. |
| format | Patent |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | Apparatus, method, and computer program product for playing back content |
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