发明名称 SYSTEMS AND METHODS FOR SIGNALING CONTENT RIGHTS THROUGH RELEASE WINDOWS LIFE CYCLE
摘要 <p>Systems and methods for controlling the use of audio, video and audiovisual content are provided. A data structure includes content usage rights for multiple release windows. The usage rights may be encoded in the content or otherwise bound to the content. Playback devices are configured to access the appropriate usage rights and control usage in accordance with the usage rights.</p>
申请公布号 CA2692180(A1) 申请公布日期 2010.08.17
申请号 CA20102692180 申请日期 2010.02.04
申请人 COMCAST CABLE HOLDINGS, LLC 发明人 FAHRNY, JAMES W.
分类号 G06F21/00 主分类号 G06F21/00
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