发明授权
- 专利标题： Communication terminal for restricting the use of content
- 专利标题（中）： 通信终端限制使用内容
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申请号： US10452842申请日： 2003-06-02
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公开(公告)号： US07346337B2公开(公告)日： 2008-03-18
- 发明人: Makoto Hamatsu , Kazuya Anzawa , Riko Nagai
- 申请人： Makoto Hamatsu , Kazuya Anzawa , Riko Nagai
- 申请人地址： JP Tokyo
- 专利权人： NTT DoCoMo, Inc.
- 当前专利权人： NTT DoCoMo, Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Brinks Hofer Gilson & Lione
- 优先权： JP2002-175994 20020617; JP2002-365711 20021217
- 主分类号： H04M1/66
- IPC分类号： H04M1/66 ; H04L9/10
摘要：
Mobile terminal receives from a server a content, a sending time information which indicates the time of sending the content, and a time restriction information that indicates the time period when the content can be used. Mobile terminal correlates the content with the sending time information and the time restriction information, and stores them. Mobile terminal calculates the difference between the time of receiving the content and the sending time information. Mobile terminal correlates the difference with the content and stores them. Mobile terminal adds the difference to the current time kept by time keeping unit to obtain a usage determination reference time. Mobile terminal compares the usage determination reference time with the time restriction information to determine whether the mobile terminal can use the content or not.