发明授权
US09215422B2 Video processing system with conditional access module and methods for use therewith
有权
具有条件访问模块的视频处理系统及其使用方法
- 专利标题： Video processing system with conditional access module and methods for use therewith
- 专利标题（中）： 具有条件访问模块的视频处理系统及其使用方法
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申请号： US12190122申请日： 2008-08-12
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公开(公告)号： US09215422B2公开(公告)日： 2015-12-15
- 发明人: Stephen E. Gordon , Jeyhan Karaoguz , Sherman (Xuemin) Chen , Michael Dove , David Rosmann , Thomas J. Quigley
- 申请人： Stephen E. Gordon , Jeyhan Karaoguz , Sherman (Xuemin) Chen , Michael Dove , David Rosmann , Thomas J. Quigley
- 申请人地址： US CA Irvine
- 专利权人： BROADCOM CORPORATION
- 当前专利权人： BROADCOM CORPORATION
- 当前专利权人地址： US CA Irvine
- 代理机构： Garlick & Markison
- 代理商 Bruce Stuckman
- 主分类号： H04N7/16
- IPC分类号： H04N7/16 ; H04N7/167 ; H04N7/173 ; H04N21/266 ; H04N21/4623 ; H04N21/658
摘要：
A video processing system includes a video device that generates a request corresponding to video content. A conditional access module generates a video signal for transmission to the video device during a first time period, and terminates transmission of the video signal when the request is not authenticated during the first time period. In a further embodiment, the conditional access module generates a video signal for unscrambled transmission to the video device during a first time period, terminates the unscrambled transmission of the video signal at the expiration of the first time period, and continues with scrambled transmission of the video signal after the first time period.