发明名称 |
INFORMATION PROCESSING DEVICE, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM |
摘要 |
<p>There is provided a configuration of an information recording medium containing a number of contents capable of performing use management of each segmented content. As a division region of stored contents in the information recording medium, a plurality of content management units are set so as to correspond to the title, index information, and the like. A unit key as a different encryption processing key is correlated to each of the content management units and stored as encryption data to which a unit key corresponding to each content management unit is applied, for content real data contained at least in the content management unit. Upon reproduction of a content, the unit is identified and decoding is performed by using a unit key corresponding to the unit before reproduction. In an information recording medium containing a number of contents, it is possible to perform use management for each of the segmented contents.</p> |
申请公布号 |
KR20060070545(A) |
申请公布日期 |
2006.06.23 |
申请号 |
KR20067002863 |
申请日期 |
2004.08.10 |
申请人 |
SONY CORPORATION |
发明人 |
TAKASHIMA YOSHIKAZU;ASANO TOMOYUKI;KITANI SATOSHI;MURAMATSU KATSUMI;YONEMITSU JUN;UEDA KENJIRO |
分类号 |
G06F12/14;G11B20/10;G06F12/00;G06F13/00;G06F21/62;G11B20/00;G11B27/00;G11B27/10;H04L9/14;H04N7/16;H04N7/24 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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