Invention Grant
- Patent Title: Information recording medium and information processing method for accessing content with license or copyright protection
- Patent Title (中): 用于通过许可或版权保护访问内容的信息记录介质和信息处理方法
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Application No.: US12801101Application Date: 2010-05-21
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Publication No.: US08712048B2Publication Date: 2014-04-29
- Inventor: Tsuyoshi Nakayama , Chikako Mori , Yoshimichi Kitaya , Yoshikazu Kouno
- Applicant: Tsuyoshi Nakayama , Chikako Mori , Yoshimichi Kitaya , Yoshikazu Kouno
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Finnegan Henderson Farabow Garrett & Dunner LLP
- Priority: JP2003-079827 20030324
- Main IPC: G06F21/00
- IPC: G06F21/00

Abstract:
There are provided an information recording medium, an information processing apparatus, an information processing method, and a computer program, which can realize users' convenience for using content in accordance with a license and copyright protection. An information recording medium stores an encrypted content file including encrypted content, usage right information of the encrypted content, and encryption key information necessary for a decrypting process for the encrypted content. Thus, a user can acquire a license (usage right information) and key information necessary for decryption of the content, together with the content, from the information recording medium, without acquiring the license (usage rights) by connection to a license provider. Therefore, it is no longer necessary to perform a process of acquiring the license (usage rights) from the license provider when the content is to be used, whereby user convenience is improved, and license-based content copyright management can also be ensured.
Public/Granted literature
Information query