发明名称 |
METHOD AND APPARATUS FOR PROVIDING A SECURE TRICK PLAY |
摘要 |
<p>A process may be utilized by a DVR. The process characterizes a set of content as a plurality of segments as the set of content is received. Each of the segments has a segment length according to a predetermined time interval. Further, the process encrypts each of the segments with a corresponding content encryption key to generate a plurality of encrypted segments. The corresponding content encryption key for each of the segments is generated by the DRM component. In addition, the process stores each of the encrypted segments for playback with trick play features in accordance with an expiration content rule having a time limit on the temporary playability of the set of content.</p> |
申请公布号 |
CA2684393(C) |
申请公布日期 |
2013.09.10 |
申请号 |
CA20082684393 |
申请日期 |
2008.04.25 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
PETERKA, PETR;MEDVINSKY, ALEXANDER;MORONEY, PAUL |
分类号 |
H04N21/2347;H04N21/4147 |
主分类号 |
H04N21/2347 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|