发明名称 Communicating media content from a DVR to a portable device
摘要 In a method for communicating media content stored on a digital video recorder (DVR) protected by a first DRM system to a portable multimedia device (PMD) using a second DRM system, in which the first DRM system differs from the second DRM system, a request for communication of a media content item stored on the DVR to the PMD is received. In addition, a portable content key is employed to encrypt the media content item to a PMD format suitable content version and the encrypted PMD format suitable content version is communicated to the PMD along with a portable content identifier (ID).
申请公布号 US2009285391(A1) 申请公布日期 2009.11.19
申请号 US20090465676 申请日期 2009.05.14
申请人 GENERAL INSTRUMENT CORPORATION 发明人 JOHNSON GERALD R.;PETERKA PETR
分类号 H04N7/167;H04K1/00;H04L9/00;H04L9/08 主分类号 H04N7/167
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