发明申请
US20060129490A1 System, method, and service for delivering multimedia content by means of a permission to decrypt titles on a physical media
有权
用于通过对物理介质上的标题进行解密的许可来传送多媒体内容的系统,方法和服务
- 专利标题: System, method, and service for delivering multimedia content by means of a permission to decrypt titles on a physical media
- 专利标题(中): 用于通过对物理介质上的标题进行解密的许可来传送多媒体内容的系统,方法和服务
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申请号: US11009272申请日: 2004-12-10
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公开(公告)号: US20060129490A1公开(公告)日: 2006-06-15
- 发明人: Bradley Collar , Jeffrey Bruce Lotspiech , Florian Pestoni , Michael Ripley , Spencer Stephens
- 申请人: Bradley Collar , Jeffrey Bruce Lotspiech , Florian Pestoni , Michael Ripley , Spencer Stephens
- 申请人地址: US NY Armonk, US CA Burbank US CA Santa Clara
- 专利权人: International Business Machines Corporation,Warner Bros Entertainment Inc.,Intel Corporation
- 当前专利权人: International Business Machines Corporation,Warner Bros Entertainment Inc.,Intel Corporation
- 当前专利权人地址: US NY Armonk, US CA Burbank US CA Santa Clara
- 主分类号: G06F17/60
- IPC分类号: G06F17/60
摘要:
Enhanced multimedia content on physical media interacts with the user through a media player and the Internet. Enhanced multimedia utilizes IDs for pieces of content on the media and a media key block. On the enhanced media is a file with a list of URLs. As the enhanced media plays a title requiring an external permission for decryption, the media player accesses the URL for that title and obtains the permission. The permission may be purchased or provided for free. Secure encryption and transmission of permission is accomplished by broadcast encryption using a media key block. Each media has a unique set of keys that allow the media player to process the media key block; however, each media follows a unique path through the media key block. All legitimate media players obtain the media key; circumvention devices cannot decipher the media key block.