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    • 49. 发明申请
    • METHOD AND APPARATUS FOR DECODING RIGHT OBJECT AND METHOD AND APPARATUS FOR SHARING CONTENTS USING THE SAME
    • 用于解码正确对象的方法和装置以及使用该方法和装置共享内容的装置
    • US20080154778A1
    • 2008-06-26
    • US11836227
    • 2007-08-09
    • Jae-won LEEBo-gyeong Kang
    • Jae-won LEEBo-gyeong Kang
    • H04K1/00
    • G06F21/10G06F2221/0759
    • A method and apparatus for decoding a right object and a method and apparatus for sharing contents using the same, the method of sharing contents including: receiving a Digital Rights Management (DRM) agent to interpret a right object corresponding to the contents; operating the received DRM agent to generate a coding key and a decoding key to code and decode the right object, respectively; decoding the received right object by using the decoding key and extracting a contents decoding key in order to decode the content; and decoding the contents received from a predetermined device by using the contents decoding key. Therefore, coded contents can be shared even in different DRM systems, and since DRM agent may be provided as software at the time the content is shared, the DRM agent need not be originally included by a device manufacturer, thereby reducing a development cost.
    • 一种用于对正确对象进行解码的方法和装置,以及使用该方法和装置共享内容的方法和装置,共享内容的方法包括:接收数字版权管理(DRM)代理来解释对应于内容的正确对象; 操作所接收的DRM代理以生成编码密钥和解码密钥,分别对所述权利对象进行编码和解码; 通过使用解码密钥对接收到的对象进行解码并提取内容解码密钥以解码内容; 并且通过使用内容解码密钥对从预定设备接收的内容进行解码。 因此,即使在不同的DRM系统中也可以共享编码内容,并且由于DRM代理可以在内容共享时作为软件提供,所以DRM代理不需要最初由设备制造商包括,从而降低开发成本。