发明名称 CONTENT USAGE DEVICE AND NETWORK SYSTEM, AND LICENSE INFORMATION ACQUISITION METHOD
摘要 A content usage device includes (i) a license management unit that holds license information and (ii) a content output unit that uses a content in compliance with license information and outputs the content in at least one manner of a sound, video and data. The license management unit, upon receiving a request of license information from the content output unit, requests a license management unit of another content usage device to transfer the license information and acquires the license information, and passes the acquired license information to the content output unit. The content output unit uses a content in compliance with the license information passed from the license management unit.
申请公布号 KR20040015714(A) 申请公布日期 2004.02.19
申请号 KR20037014456 申请日期 2003.11.06
申请人 发明人
分类号 G06F17/00;G06F21/00;G06F21/10;H04N5/913;H04N7/16 主分类号 G06F17/00
代理机构 代理人
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