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公开(公告)号：US20080250444A1
公开(公告)日：2008-10-09
申请号：US12064427
申请日：2006-08-08
IPC分类号： H04N7/16
CPC分类号： G11B20/0021 , G11B20/00086 , H04N5/913 , H04N7/162 , H04N21/26606 , H04N21/4325 , H04N21/4334 , H04N21/4623 , H04N21/4627 , H04N21/8455 , H04N2005/91364
摘要： A method allows a broadcasted conditional access content accessible at the time of transmission to be also accessible at a later time thanks to intermediate storage on a hard disk of a user unit. The processing method includes the steps of receiving at the user unit a data stream encrypted by at least one control word, at least one control message stream containing the control words, forming an index file, each index comprising an identifier of a control message formed by the extraction of data associated to the control messages and an identifier of the part of the content to which the control message is applied; and, at the time of the deferred processing of the content, extracting at least one part of the control messages and resynchronizing the content with the control messages by the use of the index file, the identifier of the control message allowing the selection of the current control message from a set of control messages at the time of the exploitation of the content identified by the identifier of the part of the content related to this control message.
摘要翻译： 一种方法允许在传输时可访问的广播条件访问内容也可以在稍后的时间被访问，这归功于用户单元的硬盘上的中间存储。 处理方法包括以下步骤：在用户单元处接收由至少一个控制字加密的数据流，至少一个包含控制字的控制消息流，形成索引文件，每个索引包括由 提取与控制消息相关联的数据以及应用控制消息的内容的一部分的标识符; 并且在所述内容的延迟处理时，通过使用所述索引文件来提取所述控制消息的至少一部分并且与所述控制消息重新同步所述内容，所述控制消息的标识符允许选择所述当前 在利用由与该控制消息相关的内容的部分的标识符标识的内容时，来自一组控制消息的控制消息。
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公开(公告)号：US08677147B2
公开(公告)日：2014-03-18
申请号：US12926094
申请日：2010-10-26
申请人： Sebastien Robyr , Guy Moreillon
发明人： Sebastien Robyr , Guy Moreillon
IPC分类号： H04L29/06
CPC分类号： H04N7/1675 , G06F21/10 , H04L63/0428 , H04L2463/101 , H04N21/25816 , H04N21/26606 , H04N21/4622 , H04N21/4623 , H04N21/6181 , H04N21/63345
摘要： The invention concerns a method for providing a plurality of receivers with conditional access to broadcast services using a simplified means for managing the control messages required by such conditional access schemes. The method involves providing all information which will allow a registered receiver having the necessary decryption key to access the services without having any prior rights loaded locally. A management center keeps a register of all subscribed receivers, including a list of services to which the receiver is subscribed, and encrypts the services using control words encrypted by the necessary keys. Control messages comprising the control words for decryption are provided within a special channel to which the receiver has permanent access, the special channel being a different one from channels used for broadcasting audio/video services.
摘要翻译： 本发明涉及一种用于使用用于管理这种条件访问方案所需的控制消息的简化装置向多个接收机提供对广播服务的条件访问的方法。 该方法包括提供所有信息，其将允许具有必要的解密密钥的注册接收者访问服务，而不会在本地加载任何先前的权限。 管理中心保存所有订阅的接收者的注册，包括接收者订阅的服务列表，并使用由必要的密钥加密的控制字对服务进行加密。 包括用于解密的控制字的控制消息被提供在接收机具有永久访问的专用信道中，该专用信道与用于广播音频/视频服务的信道不同。
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公开(公告)号：US08458739B2
公开(公告)日：2013-06-04
申请号：US12064427
申请日：2006-08-08
CPC分类号： G11B20/0021 , G11B20/00086 , H04N5/913 , H04N7/162 , H04N21/26606 , H04N21/4325 , H04N21/4334 , H04N21/4623 , H04N21/4627 , H04N21/8455 , H04N2005/91364
摘要： A method allows a broadcasted conditional access content accessible at the time of transmission to be also accessible at a later time thanks to intermediate storage on a hard disk of a user unit. The processing method includes the steps of receiving at the user unit a data stream encrypted by at least one control word, at least one control message stream containing the control words, forming an index file, each index comprising an identifier of a control message formed by the extraction of data associated to the control messages and an identifier of the part of the content to which the control message is applied; and, at the time of the deferred processing of the content, extracting at least one part of the control messages and resynchronizing the content with the control messages by the use of the index file, the identifier of the control message allowing the selection of the current control message from a set of control messages at the time of the exploitation of the content identified by the identifier of the part of the content related to this control message.
摘要翻译： 一种方法允许在传输时可访问的广播条件访问内容也可以在稍后的时间被访问，这归功于用户单元的硬盘上的中间存储。 处理方法包括以下步骤：在用户单元处接收由至少一个控制字加密的数据流，至少一个包含控制字的控制消息流，形成索引文件，每个索引包括由 提取与控制消息相关联的数据以及应用控制消息的内容的一部分的标识符; 并且在所述内容的延迟处理时，通过使用所述索引文件来提取所述控制消息的至少一部分并且与所述控制消息重新同步所述内容，所述控制消息的标识符允许选择所述当前 在利用由与该控制消息相关的内容的部分的标识符标识的内容时，来自一组控制消息的控制消息。
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4.发明授权公开(公告)号：US08630417B2
公开(公告)日：2014-01-14
申请号：US12323652
申请日：2008-11-26
申请人： Antoine Burckard , Sebastien Robyr
发明人： Antoine Burckard , Sebastien Robyr
IPC分类号： H04L9/00
CPC分类号： H04L9/083 , H04L9/0822 , H04L2209/60
摘要： A method of operating by a second processing unit a content recorded by a first processing unit, said first and second processing units having a specific key being managed by a central server. The processing units have access to a removable storage memory intended to record a content ciphered by a content key accompanied by a file associated to the content. The content key is produced by means of a cascaded deciphering starting from the specific key of the first unit of at least two constants provided by the central server and a variable. The content is restored by the second processing unit by means of a cascaded deciphering starting from the specific key of the second unit by using the constants and the variable stored in the file accompanying the content and a transcoding key calculated by the central server.
摘要翻译： 一种由第二处理单元操作由第一处理单元记录的内容的方法，所述第一和第二处理单元具有由中央服务器管理的特定密钥。 处理单元可访问用于记录由内容密钥加密的内容的可移动存储存储器，伴随着与内容相关联的文件。 内容密钥通过从由中央服务器提供的至少两个常数的第一单元的特定密钥和变量开始的级联解密产生。 通过使用存储在伴随内容的文件中的常数和变量以及由中央服务器计算的代码转换密钥，通过从第二单元的特定键开始的级联解密来恢复内容。
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5.发明申请公开(公告)号：US20090138701A1
公开(公告)日：2009-05-28
申请号：US12323652
申请日：2008-11-26
申请人： Antoine Burckard , Sebastien Robyr
发明人： Antoine Burckard , Sebastien Robyr
CPC分类号： H04L9/083 , H04L9/0822 , H04L2209/60
摘要： A method of operating by a second processing unit a content recorded by a first processing unit, said first and second processing units having a specific key being managed by a central server. The processing units have access to a removable storage memory intended to record a content ciphered by a content key accompanied by a file associated to the content. The content key is produced by means of a cascaded deciphering starting from the specific key of the first unit of at least two constants provided by the central server and a variable. The content is restored by the second processing unit by means of a cascaded deciphering starting from the specific key of the second unit by using the constants and the variable stored in the file accompanying the content and a transcoding key calculated by the central server.
摘要翻译： 一种由第二处理单元操作由第一处理单元记录的内容的方法，所述第一和第二处理单元具有由中央服务器管理的特定密钥。 处理单元可访问用于记录由内容密钥加密的内容的可移动存储存储器，伴随着与内容相关联的文件。 内容密钥通过从由中央服务器提供的至少两个常数的第一单元的特定密钥和变量开始的级联解密产生。 通过使用存储在伴随内容的文件中的常数和变量以及由中央服务器计算的代码转换密钥，通过从第二单元的特定键开始的级联解密来恢复内容。
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6.发明申请Method for sending multimedia content to at least one multimedia unit, method for processing said multimedia content and multimedia unit for the implementation of these methods 有权用于将多媒体内容发送到至少一个多媒体单元的方法，用于处理所述多媒体内容的方法和用于实现这些方法的多媒体单元公开(公告)号：US20080163313A1
公开(公告)日：2008-07-03
申请号：US12003235
申请日：2007-12-21
IPC分类号： H04N7/173
CPC分类号： H04N7/17327 , H04N21/23608 , H04N21/26266 , H04N21/26275 , H04N21/4331 , H04N21/8456
摘要： The present invention relates in particular to a method for processing multimedia content memorised in the form of digital data in at least one multimedia unit. This method includes the following steps: reception of a program map table containing at least one indication of a proprietary type of data associated to a packet identification data (PID) as well a flag; reception of a matching table between the flag value and the real type of data; search for the flag values appearing in the program map table PMT received by the multimedia unit; search for the corresponding flag values in the matching table between the flag value and the real type of data; and modification of the program map table by replacing the indication of the proprietary type of data of the program map table with the corresponding real type of data of the matching table. The invention furthermore concerns a method for sending multimedia content in the form of digital data, as well as a multimedia unit for implementing these methods.
摘要翻译： 本发明尤其涉及一种在至少一个多媒体单元中处理以数字数据形式存储的多媒体内容的方法。 该方法包括以下步骤：接收包含与分组标识数据（PID）相关联的专有类型的数据的至少一个指示的节目映射表以及标志; 在标志值和实际数据类型之间接收匹配表; 搜索出现在由多媒体单元接收的节目映射表PMT中的标志值; 在匹配表中搜索标志值与实际数据类型之间的相应标志值; 并通过用对应的匹配表的真实类型的数据替换节目映射表的专有类型的数据的指示来修改节目映射表。 本发明还涉及以数字数据形式发送多媒体内容的方法，以及用于实现这些方法的多媒体单元。
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