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1. 发明申请

US20100325417A1 RENDERING RIGHTS DELEGATION SYSTEM AND METHOD 有权
标题翻译：渲染权利代表制和方法
公开(公告)号：US20100325417A1
公开(公告)日：2010-12-23
申请号：US12871130
申请日：2010-08-30
申请人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagana , Pierre Chavanne
发明人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagana , Pierre Chavanne
IPC分类号： H04L9/00
CPC分类号： H04L9/3263 , H04L2209/603
摘要： Methods and systems for controlling the distribution of digital content are provided. A license holder acquires protected content and an original digital license to the protected content from a content provider system. The license holder in turn delegates all or part of the grants in that original license to other qualified devices or clients. The content remains in its original, protected or encrypted form while it is delivered from the license holder to the client along with a digital sublicense that the client receives from the original license holder, whereupon the content can then be rendered. The original digital license defines or governs the conditions under which such delegation occurs, and includes terms under which such delegation is permitted to continue in order to enforce the intent of the content provider.
摘要翻译：提供了控制数字内容分发的方法和系统。许可证持有人从内容提供者系统获得受保护内容和原始数字许可证给受保护的内容。许可证持有者依次将该原始许可证中的全部或部分赠款委托给其他合格的设备或客户。内容保持原始，受保护或加密的形式，同时从许可证持有者交付给客户端以及客户端从原始许可证持有者收到的数字再许可，从而可以呈现内容。原始数字许可证定义或管理此类授权发生的条件，并包括允许此类授权继续执行内容提供商意图的条款。

2. 发明申请

US20050138357A1 Rendering rights delegation system and method 有权
标题翻译：渲染权授权制度和方法
公开(公告)号：US20050138357A1
公开(公告)日：2005-06-23
申请号：US10957109
申请日：2004-10-01
申请人： Eric Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
发明人： Eric Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
IPC分类号： H04L9/00 , H04L9/08
CPC分类号： H04L9/3263 , H04L2209/603
摘要： Methods and systems for controlling the distribution of digital content are provided. A license holder acquires protected content and an original digital license to the protected content from a content provider system. The license holder in turn delegates all or part of the grants in that original license to other qualified devices or clients. The content remains in its original, protected or encrypted form while it is delivered from the license holder to the client along with a digital sublicense that the client receives from the original license holder, whereupon the content can then be rendered. The original digital license defines or governs the conditions under which such delegation occurs, and includes terms under which such delegation is permitted to continue in order to enforce the intent of the content provider.
摘要翻译：提供了控制数字内容分发的方法和系统。许可证持有人从内容提供者系统获得受保护内容和原始数字许可证给受保护的内容。许可证持有者依次将该原始许可证中的全部或部分赠款委托给其他合格的设备或客户。内容保持原始，受保护或加密的形式，同时从许可证持有者交付给客户端以及客户端从原始许可证持有者收到的数字再许可，从而可以呈现内容。原始数字许可证定义或管理此类授权发生的条件，并包括允许此类授权继续执行内容提供商意图的条款。

3. 发明授权

US08352374B2 Article of manufacture for controlling the use of content by providing for the delegation of rendering rights 有权
标题翻译：通过规定转让权的授权来控制内容使用的制造条款
公开(公告)号：US08352374B2
公开(公告)日：2013-01-08
申请号：US12871130
申请日：2010-08-30
申请人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
发明人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
IPC分类号： G06F21/00
CPC分类号： H04L9/3263 , H04L2209/603
摘要： Methods and systems for controlling the distribution of digital content are provided. A license holder acquires protected content and an original digital license to the protected content from a content provider system. The license holder in turn delegates all or part of the grants in that original license to other qualified devices or clients. The content remains in its original, protected or encrypted form while it is delivered from the license holder to the client along with a digital sublicense that the client receives from the original license holder, whereupon the content can then be rendered. The original digital license defines or governs the conditions under which such delegation occurs, and includes terms under which such delegation is permitted to continue in order to enforce the intent of the content provider.
摘要翻译：提供了控制数字内容分发的方法和系统。许可证持有人从内容提供者系统获得受保护内容和原始数字许可证给受保护的内容。许可证持有者依次将该原始许可证中的全部或部分赠款委托给其他合格的设备或客户。内容保持原始，受保护或加密的形式，同时从许可证持有者交付给客户端以及客户端从原始许可证持有者收到的数字再许可，从而可以呈现内容。原始数字许可证定义或管理此类授权发生的条件，并包括允许此类授权继续执行内容提供商意图的条款。

4. 发明授权

US07861308B2 Digital rights management using trusted time 有权
标题翻译：数字版权管理使用可信时间
公开(公告)号：US07861308B2
公开(公告)日：2010-12-28
申请号：US11289099
申请日：2005-11-28
申请人： Marc E. Strohwig , Yoji Kawamoto , Motohiko Nagano , Pierre Chavanne , Norifumi Goto , Oscar H. Steele, III , Eric John Swenson
发明人： Marc E. Strohwig , Yoji Kawamoto , Motohiko Nagano , Pierre Chavanne , Norifumi Goto , Oscar H. Steele, III , Eric John Swenson
IPC分类号： G06F7/04
CPC分类号： H04N7/1675 , G06F21/10 , G06F21/725 , H04L69/28 , H04N21/2347 , H04N21/2541 , H04N21/2543 , H04N21/8355 , Y10S705/901
摘要： A method for monitoring time so that the use of protected content can be controlled includes receiving a trusted time value from a trusted authority external to a client device. When the client is no longer in communication with the trusted authority, the previously-received trusted time value is updated by use of the client's operating system counter so that a calculated trusted time value is derived for content license evaluation purposes.
摘要翻译：一种用于监视时间以便可以控制受保护内容的使用的方法包括从客户端设备外部的受信任的机构接收可信时间值。当客户端不再与受信任的机构进行通信时，通过使用客户端的操作系统计数器来更新先前接收到的可信时间值，以便为内容许可证评估目的导出计算的可信时间值。

5. 发明申请

US20060159266A1 Protection of digital content using block cipher crytography 审中-公开
公开(公告)号：US20060159266A1
公开(公告)日：2006-07-20
申请号：US11376501
申请日：2006-03-14
申请人： Pierre Chavanne , John Hwa , Lakshmana Pamarthy , Carl Quinn , Ralph Hill , Eric Swenson , Motomasa Futagami , Atsushi Mituszawa
发明人： Pierre Chavanne , John Hwa , Lakshmana Pamarthy , Carl Quinn , Ralph Hill , Eric Swenson , Motomasa Futagami , Atsushi Mituszawa
IPC分类号： H04L9/00
CPC分类号： H04L9/0637 , H04L2209/60
摘要： Protection of digital content using a specific application of block cipher cryptography is described. The digital content is encrypted using an encryption key and a calculated initialization vector. The digital content includes a plurality of strides of data and each stride includes a string of data to be encrypted and a block of data to be encrypted. The calculated initialization vector to be used to encrypt the block of data is derived from the string of data in the stride to be encrypted. Furthermore, the initialization vector is calculated by performing an exclusive disjunction function on a seed value and the string of data for each stride.

6. 发明授权

US07055039B2 Protection of digital content using block cipher crytography 有权
标题翻译：使用块密码保护数字内容
公开(公告)号：US07055039B2
公开(公告)日：2006-05-30
申请号：US10675430
申请日：2003-09-29
申请人： Pierre Chavanne , John Hwa , Lakshmana Pamarthy , Carl Quinn , Ralph Hill , Eric Swenson , Motomasa Futagami , Atsushi Mituszawa
发明人： Pierre Chavanne , John Hwa , Lakshmana Pamarthy , Carl Quinn , Ralph Hill , Eric Swenson , Motomasa Futagami , Atsushi Mituszawa
IPC分类号： H04L9/00 , G06F11/30
CPC分类号： H04L9/0637 , H04L2209/60
摘要： Protection of digital content using a specific application of block cipher cryptography is described. The digital content is encrypted using an encryption key and a calculated initialization vector. The digital content includes a plurality of strides of data and each stride includes a string of data to be encrypted and a block of data to be encrypted. The calculated initialization vector to be used to encrypt the block of data is derived from the string of data in the stride to be encrypted. Furthermore, the initialization vector is calculated by performing an exclusive disjunction function on a seed value and the string of data for each stride.
摘要翻译：描述使用块密码加密的特定应用保护数字内容。数字内容使用加密密钥和计算的初始化向量进行加密。数字内容包括多个数据段，并且每个步幅包括要加密的数据串和要加密的数据块。用于加密数据块的计算的初始化向量是从要加密的步幅中的数据串导出的。此外，通过对种子值进行排他性分离函数和每个步幅的数据串来计算初始化向量。

7. 发明授权

US08103004B2 Method, apparatus and system for use in distributed and parallel decryption 失效
标题翻译：用于分布式和并行解密的方法，装置和系统
公开(公告)号：US08103004B2
公开(公告)日：2012-01-24
申请号：US10921498
申请日：2004-08-18
申请人： Pierre Chavanne , Oscar Steele , Yoji Kawamoto , Eric Swenson
发明人： Pierre Chavanne , Oscar Steele , Yoji Kawamoto , Eric Swenson
IPC分类号： H04L9/00 , H04N21/2347 , H04N21/00
CPC分类号： H04L63/0428 , G06F21/10 , H04L9/0822 , H04L9/0891 , H04L2209/603 , H04L2463/062 , H04L2463/101
摘要： The present embodiments advantageously provide methods and systems for use in decrypting content, and in some preferred embodiments expanding a security environment to distribute the computational processing involved in decryption. In some embodiments, a method for use in decrypting content is provided that receives a first content key at a first system for the decryption of a first track of encrypted content; encrypts the first content key according to a first instance key known at the first system; communicates the first encrypted content key over an externally accessible communication link to a second system; generates the first instance key at the second system independent of the first system; decrypts the first encrypted content key using the generated first instance key at the second system; and decrypts the first track of encrypted content using the first unencrypted content key at the second system.
摘要翻译：本实施例有利地提供用于解密内容的方法和系统，并且在一些优选实施例中，扩展安全环境以分发解密中涉及的计算处理。在一些实施例中，提供了用于解密内容的方法，其在第一系统处接收第一内容密钥以解密加密内容的第一轨道; 根据第一系统已知的第一实例密钥加密第一内容密钥; 通过外部可访问的通信链路将第一加密内容密钥传送到第二系统; 在第二系统处独立于第一系统生成第一实例密钥; 在所述第二系统处使用所生成的第一实例密钥来解密所述第一加密内容密钥; 并且使用第二系统处的第一未加密内容密钥来解密加密内容的第一轨道。

8. 发明授权

US07801819B2 Rendering rights delegation system and method 有权
标题翻译：渲染权授权制度和方法
公开(公告)号：US07801819B2
公开(公告)日：2010-09-21
申请号：US10957109
申请日：2004-10-01
申请人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
发明人： Eric John Swenson , Ryuji Ishiguro , Motohiko Nagano , Pierre Chavanne
IPC分类号： G06F21/00
CPC分类号： H04L9/3263 , H04L2209/603
摘要： Methods and systems for controlling the distribution of digital content are provided. A license holder acquires protected content and an original digital license to the protected content from a content provider system. The license holder in turn delegates all or part of the grants in that original license to other qualified devices or clients. The content remains in its original, protected or encrypted form while it is delivered from the license holder to the client along with a digital sublicense that the client receives from the original license holder, whereupon the content can then be rendered. The original digital license defines or governs the conditions under which such delegation occurs, and includes terms under which such delegation is permitted to continue in order to enforce the intent of the content provider.
摘要翻译：提供了控制数字内容分发的方法和系统。许可证持有人从内容提供者系统获得受保护内容和原始数字许可证给受保护的内容。许可证持有者依次将该原始许可证中的全部或部分赠款委托给其他合格的设备或客户。内容保持原始，受保护或加密的形式，同时从许可证持有者交付给客户端以及客户端从原始许可证持有者收到的数字再许可，从而可以呈现内容。原始数字许可证定义或管理此类授权发生的条件，并包括允许此类授权继续执行内容提供商意图的条款。

9. 发明申请

US20050074125A1 Method, apparatus and system for use in distributed and parallel decryption 失效
标题翻译：用于分布式和并行解密的方法，装置和系统
公开(公告)号：US20050074125A1
公开(公告)日：2005-04-07
申请号：US10921498
申请日：2004-08-18
申请人： Pierre Chavanne , Oscar Steele , Yoji Kawamoto , Eric Swenson
发明人： Pierre Chavanne , Oscar Steele , Yoji Kawamoto , Eric Swenson
IPC分类号： G06F21/00 , H04L9/08 , H04L29/06 , H04K1/00
CPC分类号： H04L63/0428 , G06F21/10 , H04L9/0822 , H04L9/0891 , H04L2209/603 , H04L2463/062 , H04L2463/101
摘要： The present embodiments advantageously provide methods and systems for use in decrypting content, and in some preferred embodiments expanding a security environment to distribute the computational processing involved in decryption. In some embodiments, a method for use in decrypting content is provided that receives a first content key at a first system for the decryption of a first track of encrypted content; encrypts the first content key according to a first instance key known at the first system; communicates the first encrypted content key over an externally accessible communication link to a second system; generates the first instance key at the second system independent of the first system; decrypts the first encrypted content key using the generated first instance key at the second system; and decrypts the first track of encrypted content using the first unencrypted content key at the second system.
摘要翻译：本实施例有利地提供用于解密内容的方法和系统，并且在一些优选实施例中，扩展安全环境以分发解密中涉及的计算处理。在一些实施例中，提供了用于解密内容的方法，其在第一系统处接收第一内容密钥以解密加密内容的第一轨道; 根据第一系统已知的第一实例密钥加密第一内容密钥; 通过外部可访问的通信链路将第一加密内容密钥传送到第二系统; 在第二系统处独立于第一系统生成第一实例密钥; 在所述第二系统处使用所生成的第一实例密钥来解密所述第一加密内容密钥; 并且使用第二系统处的第一未加密内容密钥来解密加密内容的第一轨道。

10. 发明授权

US08239961B2 Digital rights management using trusted time 失效
标题翻译：数字版权管理使用可信时间
公开(公告)号：US08239961B2
公开(公告)日：2012-08-07
申请号：US12910304
申请日：2010-10-22
申请人： Marc E. Strohwig , Yoji Kawamoto , Motohiko Nagano , Pierre Chavanne , Norifumi Goto , Oscar H. Steele, III , Eric John Swenson
发明人： Marc E. Strohwig , Yoji Kawamoto , Motohiko Nagano , Pierre Chavanne , Norifumi Goto , Oscar H. Steele, III , Eric John Swenson
IPC分类号： G06F7/04
CPC分类号： H04N7/1675 , G06F21/10 , G06F21/725 , H04L69/28 , H04N21/2347 , H04N21/2541 , H04N21/2543 , H04N21/8355 , Y10S705/901
摘要： A method for monitoring time so that the use of protected content can be controlled includes receiving a trusted time value from a trusted authority external to a client device. When the client is no longer in communication with the trusted authority, the previously-received trusted time value is updated by use of the client's operating system counter so that a calculated trusted time value is derived for content license evaluation purposes.
摘要翻译：一种用于监视时间以便可以控制受保护内容的使用的方法包括从客户端设备外部的受信任的机构接收可信时间值。当客户端不再与受信任的机构进行通信时，通过使用客户端的操作系统计数器来更新先前接收到的可信时间值，以便为内容许可证评估目的导出计算的可信时间值。

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