发明名称 |
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM |
摘要 |
The present invention enables execution of predetermined content usage control processing without depending on a framework of a content playback program (application). Upon content playback processing, a flag which sets information of determination as to whether or not it is necessary to refer to a management information file such as a token or a usage control information file associated with content is recorded in a content file including encrypted content to be stored in a recording medium. Upon the content playback processing, a playback apparatus acquires the content file including the encrypted content stored in the recording medium, refers to a flag recorded in the content file and determines whether or not it is necessary to refer to the management information file based on a setting of the flag. When the setting of the flag indicates that it is necessary to refer to the management information file, it is possible to select a correct management information file based on a content file identifier as a search key. |
申请公布号 |
US2014090083(A1) |
申请公布日期 |
2014.03.27 |
申请号 |
US201214117948 |
申请日期 |
2012.04.13 |
申请人 |
KOBAYASHI YOSHIYUKI;KATO MOTOKI;KUNO HIROSHI;HAYASHI TAKAMICHI;SONY CORPORATION |
发明人 |
KOBAYASHI YOSHIYUKI;KATO MOTOKI;KUNO HIROSHI;HAYASHI TAKAMICHI |
分类号 |
G06F21/10 |
主分类号 |
G06F21/10 |
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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