Invention Grant
- Patent Title: Content management systems and methods including content usage restrictions
- Patent Title (中): 内容管理系统和方法包括内容使用限制
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Application No.: US11754399Application Date: 2007-05-29
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Publication No.: US08370954B2Publication Date: 2013-02-05
- Inventor: Takeshi Takahashi
- Applicant: Takeshi Takahashi
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2006-196276 20060718
- Main IPC: G06F7/04
- IPC: G06F7/04 ; G06F17/30 ; G06F12/14 ; G06F15/16 ; G06F15/173 ; H04L29/06
Abstract:
Key data is generated that contains a decryption key that decrypts an encrypted content, and a policy that defines the usage restrictions on the content. Binder data is then generated, which contains the encrypted content, key data, and the control data, which describes the applied conditions of the key data.
Public/Granted literature
- US20080022373A1 CONTENT MANAGEMENT SYSTEM AND CONTROL METHOD THEREOF Public/Granted day:2008-01-24
Information query
