发明授权
US07590856B2 System for managing license for protecting content, server for issuing license for protecting content, and terminal for using content protected by license
有权
用于管理用于保护内容的许可证的系统，用于发布用于保护内容的许可的服务器，以及使用受许可证保护的内容的终端
- 专利标题： System for managing license for protecting content, server for issuing license for protecting content, and terminal for using content protected by license
- 专利标题（中）： 用于管理用于保护内容的许可证的系统，用于发布用于保护内容的许可的服务器，以及使用受许可证保护的内容的终端
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申请号： US10695882申请日： 2003-10-30
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公开(公告)号： US07590856B2公开(公告)日： 2009-09-15
- 发明人: Harumi Morino , Masataka Okayama , Akira Tanaka
- 申请人： Harumi Morino , Masataka Okayama , Akira Tanaka
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2003-205893 20030805
- 主分类号： G06F21/00
- IPC分类号： G06F21/00
摘要：
A license server 1 comprises: a license table for managing licenses purchased by users; a communication control section 20 for transmitting/receiving data through a communications network 3; an authentication control section 22 for performs authentication processing for a terminal 2; an encryption/decryption control section 21 for encrypting/decrypting communications with the terminal 2; an issued temporary license information table 13 for storing information on issued temporary licenses; and a return control section 24 for returning a temporary license and then deleting the information on the temporary license stored in the issued temporary license information table 13.
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