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1. 发明申请

US20110069836A1 OFF-LINE CONTENT DELIVERY SYSTEM WITH LAYERED ENCRYPTION 有权
标题翻译：离线内容传输系统与层加密
公开(公告)号：US20110069836A1
公开(公告)日：2011-03-24
申请号：US12840160
申请日：2010-07-20
申请人： Christopher Rae , Robert Kulakowski , Subrata Datta , Eiji Oga , Nicolas Pauli , Akinwale Olugbemiga Olugbile
发明人： Christopher Rae , Robert Kulakowski , Subrata Datta , Eiji Oga , Nicolas Pauli , Akinwale Olugbemiga Olugbile
IPC分类号： H04L9/00
CPC分类号： H04N21/23476 , G06F21/10 , H04N21/23473 , H04N21/26606 , H04N21/631 , H04N21/63345
摘要： Systems and methods are described for over-encrypting symmetrically pre-encrypted content for off-line delivery to playback devices using portable media drives in accordance with embodiments of the invention. One embodiment of the method of the invention includes symmetrically pre-encrypting the content, receiving a request to issue content for playback on at least one playback device associated with a user account, where each playback device includes a processor containing a private key assigned to the playback device by a conditional access system, generating a content key and over-encrypting at least a portion of the symmetrically pre-encrypted content in response to the request, obtaining a public key for each playback device, encrypting a copy of the content key using the public key of each playback device associated with the user account, and delivering the over-encrypted content and the at least one encrypted copy of the content key to a playback device associated with the user account.
摘要翻译：描述了根据本发明的实施例的用于过度加密对称预加密内容以用于使用便携式媒体驱动器进行播放设备的离线传送的系统和方法。本发明的方法的一个实施例包括对内容进行对称预加密，接收发出用于在与用户帐户相关联的至少一个回放设备上回放的内容的请求，其中每个回放设备包括处理器，该处理器包含分配给通过条件访问系统生成内容密钥并响应于该请求对对称预加密的内容的至少一部分进行过加密，获得每个重放设备的公开密钥，使用与所述用户帐户相关联的每个回放设备的公开密钥，以及将过度加密的内容和所述内容密钥的所述至少一个加密副本传递到与所述用户帐户相关联的回放设备。

2. 发明授权

US08600062B2 Off-line content delivery system with layered encryption 有权
标题翻译：具有分层加密功能的离线内容传送系统
公开(公告)号：US08600062B2
公开(公告)日：2013-12-03
申请号：US12840160
申请日：2010-07-20
申请人： Christopher Rae , Robert Kulakowski , Subrata Datta , Eiji Oga , Nicolas Pauli , Akinwale Olugbemiga Olugbile
发明人： Christopher Rae , Robert Kulakowski , Subrata Datta , Eiji Oga , Nicolas Pauli , Akinwale Olugbemiga Olugbile
IPC分类号： H04L9/08 , H04L9/00
CPC分类号： H04N21/23476 , G06F21/10 , H04N21/23473 , H04N21/26606 , H04N21/631 , H04N21/63345
摘要： Systems and methods are described for over-encrypting symmetrically pre-encrypted content for off-line delivery to playback devices using portable media drives in accordance with embodiments of the invention. One embodiment of the method of the invention includes symmetrically pre-encrypting the content, receiving a request to issue content for playback on at least one playback device associated with a user account, where each playback device includes a processor containing a private key assigned to the playback device by a conditional access system, generating a content key and over-encrypting at least a portion of the symmetrically pre-encrypted content in response to the request, obtaining a public key for each playback device, encrypting a copy of the content key using the public key of each playback device associated with the user account, and delivering the over-encrypted content and the at least one encrypted copy of the content key to a playback device associated with the user account.
摘要翻译：描述了根据本发明的实施例的用于过度加密对称预加密内容以用于使用便携式媒体驱动器进行播放设备的离线传送的系统和方法。本发明的方法的一个实施例包括对内容进行对称预加密，接收发出用于在与用户帐户相关联的至少一个回放设备上回放的内容的请求，其中每个回放设备包括处理器，该处理器包含分配给通过条件访问系统生成内容密钥并响应于该请求对对称预加密的内容的至少一部分进行过加密，获得每个重放设备的公开密钥，使用与所述用户帐户相关联的每个回放设备的公开密钥，以及将过度加密的内容和所述内容密钥的所述至少一个加密副本传递到与所述用户帐户相关联的回放设备。

3. 发明授权

US06895463B2 Method and apparatus for efficiently running an execution image using volatile and non-volatile memory 失效
标题翻译：使用易失性和非易失性存储器有效地运行执行图像的方法和装置
公开(公告)号：US06895463B2
公开(公告)日：2005-05-17
申请号：US10063558
申请日：2002-05-02
申请人： Eiji Oga , Kazuhiro Miyoshi , Park Uh
发明人： Eiji Oga , Kazuhiro Miyoshi , Park Uh
IPC分类号： G06F9/00 , G06F9/445 , G06F12/00
CPC分类号： G06F9/445
摘要： The present invention provides an apparatus and method for efficiently running an execution image containing instructions for running a computer program in a set-top box. A non-volatile memory stores a compressed version of the execution image. A volatile memory is configured to execute the execution image. A computing unit transfers and decompresses the compressed version of the execution image from the non-volatile memory to the volatile memory where the execution image in non-compressed form can be executed efficiently.
摘要翻译：本发明提供一种用于有效地运行包含用于在机顶盒中运行计算机程序的指令的执行图像的装置和方法。非易失性存储器存储执行映像的压缩版本。易失性存储器被配置为执行执行映像。计算单元将执行图像的压缩版本从非易失性存储器传送和解压缩到易失性存储器，其中可以有效地执行非压缩形式的执行映像。

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