Invention Grant
- Patent Title: Information processing apparatus, information recording medium, information processing method, and computer program
- Patent Title (中): 信息处理装置，信息记录介质，信息处理方法和计算机程序
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Application No.: US10981251Application Date: 2004-11-04
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Publication No.: US07874003B2Publication Date: 2011-01-18
- Inventor: Yoshikazu Takashima
- Applicant: Yoshikazu Takashima
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPP2003-376789 20031106; JPP2004-022638 20040130; JPP2004-123100 20040419
- Main IPC: G06F7/04
- IPC: G06F7/04
Abstract:
An information recording medium, storing: main contents having constituent data according to a predetermined format and subcontents having constituent data not according to the predetermined format, as recorded data; the main contents and the subcontents having constituent data established as contents management units; the contents management units including data stored as encrypted data based on individual unit keys associated respectively with the contents management units.
Public/Granted literature
Information query
