Invention Grant
- Patent Title: Information processing apparatus, information processing method, and program
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Application No.: US14117948Application Date: 2012-04-13
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Publication No.: US09600638B2Publication Date: 2017-03-21
- Inventor: Yoshiyuki Kobayashi , Motoki Kato , Hiroshi Kuno , Takamichi Hayashi
- Applicant: Yoshiyuki Kobayashi , Motoki Kato , Hiroshi Kuno , Takamichi Hayashi
- Applicant Address: JP Tokyo
- Assignee: SONY CORPORATION
- Current Assignee: SONY CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Chip Law Group
- Priority: JP2011-118574 20110527
- International Application: PCT/JP2012/060118 WO 20120413
- International Announcement: WO2012/165061 WO 20121206
- Main IPC: G06F7/04
- IPC: G06F7/04 ; G06F21/10 ; G11B20/00 ; H04N5/76 ; H04L29/06

Abstract:
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.
Public/Granted literature
- US20140090083A1 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM Public/Granted day:2014-03-27
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