Invention Grant
- Patent Title: Content distribution system and content license management method
- Patent Title (中): 内容分发系统和内容许可证管理方法
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Application No.: US10566836Application Date: 2004-11-26
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Publication No.: US07885894B2Publication Date: 2011-02-08
- Inventor: Tatsuya Shimoji , Hideki Kagemoto , Yoshiharu Dewa , Naohisa Kitazato , Yasushi Katayama
- Applicant: Tatsuya Shimoji , Hideki Kagemoto , Yoshiharu Dewa , Naohisa Kitazato , Yasushi Katayama
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2003-397863 20031127
- International Application: PCT/JP2004/017601 WO 20041126
- International Announcement: WO2005/052831 WO 20050609
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G06F21/22

Abstract:
There are provided a content distribution system and a license management method for performing, in a collective manner, license management of a plurality of resources contained in contents. Each piece of content contains one upper-level resource (which is first referred to within the content), at least one lower-level resource (which can be referred directly or indirectly from the upper-level resource), one startup document and a license-corresponding document (which is an information file for performing, in a collective manner, license management of the resources contained in the content). The startup document contains at least upper-level resource reference destination information and at least one piece of license information for identifying view licenses required for viewing the resources contained in the content. In each resource, if link information for accessing other content is described, information for accessing the startup document of the other content is described.
Public/Granted literature
- US20060229990A1 Content distribution system and content license management method Public/Granted day:2006-10-12
Information query