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1.发明授权公开(公告)号：US07778417B2
公开(公告)日：2010-08-17
申请号：US11130546
申请日：2005-05-17
IPC分类号： H04N7/167
CPC分类号： H04L9/083 , G06F21/10 , G06F2221/0706 , H04L9/0822 , H04L2209/60
摘要： The present invention provides a means for managing title keys by establishing logical partitions of title keys encrypted with the same binding information. The invention supports delayed and background processing of title keys when binding information changes. This invention supports proper accounting for devices required to recover rebinding processing when devices fail or go offline unexpectedly during processing. The invention uses binding context which represents a set of data that can be used to determine if the binding information used to encrypt a set of title keys is outdated and allow for rebinding to the current cluster binding information level.
摘要翻译： 本发明提供了一种用于通过建立用相同绑定信息加密的标题密钥的逻辑分区来管理标题密钥的装置。 当绑定信息变化时，本发明支持标题密钥的延迟和后台处理。 本发明支持在处理期间设备故障或意外脱机时恢复重新绑定处理所需的设备的正确计费。 本发明使用表示可用于确定用于加密一组标题密钥的绑定信息是否过期并允许重新绑定到当前集群绑定信息级别的一组数据的绑定上下文。
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公开(公告)号：US20080196056A1
公开(公告)日：2008-08-14
申请号：US11673622
申请日：2007-02-12
IPC分类号： H04N7/16
CPC分类号： H04L29/06027 , H04L65/4076 , H04L65/4084 , H04L65/605 , H04N7/163 , H04N21/2181 , H04N21/2543 , H04N21/4227 , H04N21/4524 , H04N21/458 , H04N21/8106
摘要： A method and business model are provided for augmenting programming content at a remote location, such as a hotel, with the programming content ordinarily provided under subscription to a home location, such as a user's home. A user agreement is formed between a user and a home service provider, delineating the content provided by the home service provider to the home location. A service provider agreement is formed between the home service provider and a remote service provider, delineating content to be broadcast from the home location to the remote location. Local content is selectively augmented by the home content and displayed on a viewing device at the remote location. The user may remotely access settings and functions of a home set top box while at the remote location.
摘要翻译： 提供了一种方法和业务模型，用于在远程位置（例如酒店）处增强节目内容，其中通常在订阅到家庭位置（例如用户的家庭）下提供节目内容。 在用户和家庭服务提供商之间形成用户协议，将家庭服务提供商提供的内容描绘到家庭地点。 在家庭服务提供商和远程服务提供商之间形成服务提供商协议，描述要从家庭位置广播到远程位置的内容。 本地内容由家庭内容选择性地增加，并显示在远程位置的观看设备上。 用户可以在远程位置远程访问家庭机顶盒的设置和功能。
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3.发明授权Method for controlling access to encrypted content using multiple broadcast encryption based control blocks 有权使用多个基于广播加密的控制块来控制对加密内容的访问的方法公开(公告)号：US07778421B2
公开(公告)日：2010-08-17
申请号：US11673614
申请日：2007-02-12
CPC分类号： H04N7/1675 , H04N5/913 , H04N21/26613 , H04N21/42646 , H04N21/4325 , H04N21/4623 , H04N2005/91364
摘要： An apparatus and a method are provided for selectively accessing digital content carried on a distribution medium such as a physical medium or a broadcast medium. In one embodiment, a plurality of digital content items are encrypted under a plurality of different key management blocks, wherein each key management block is associated with a different set of device keys. The plurality of content items may be provided together on a single distribution medium to devices having assigned device keys, so that devices may selectively access content as determined by the different key management block used to encrypt the various content items and by the device keys assigned to the devices. Depending on the association between the device key and the key management blocks, the decoding device may decode all of the content items, some of the content items, or none of the content items. To provide greater security, each content item may be multiple encrypted using multiple key management blocks per content item.
摘要翻译： 提供了一种用于选择性地访问诸如物理介质或广播介质之类的分发介质上承载的数字内容的装置和方法。 在一个实施例中，多个数字内容项目在多个不同的密钥管理块下进行加密，其中每个密钥管理块与一组不同的设备密钥相关联。 多个内容项目可以在单个分发介质上一起提供给具有分配的设备密钥的设备，使得设备可以选择性地访问由用于加密各种内容项目的不同密钥管理块所确定的内容以及分配给 设备。 根据设备密钥和密钥管理块之间的关联，解码设备可以解码所有内容项目，一些内容项目或者内容项目中的一个。 为了提供更大的安全性，每个内容项目可以使用每个内容项目的多个密钥管理块来进行多重加密。
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4.发明申请公开(公告)号：US20080192936A1
公开(公告)日：2008-08-14
申请号：US11673614
申请日：2007-02-12
IPC分类号： H04L9/00
CPC分类号： H04N7/1675 , H04N5/913 , H04N21/26613 , H04N21/42646 , H04N21/4325 , H04N21/4623 , H04N2005/91364
摘要： An apparatus and a method are provided for selectively accessing digital content carried on a distribution medium such as a physical medium or a broadcast medium. In one embodiment, a plurality of digital content items are encrypted under a plurality of different key management blocks, wherein each key management block is associated with a different set of device keys. The plurality of content items may be provided together on a single distribution medium to devices having assigned device keys, so that devices may selectively access content as determined by the different key management block used to encrypt the various content items and by the device keys assigned to the devices. Depending on the association between the device key and the key management blocks, the decoding device may decode all of the content items, some of the content items, or none of the content items. To provide greater security, each content item may be multiple encrypted using multiple key management blocks per content item.
摘要翻译： 提供了一种用于选择性地访问诸如物理介质或广播介质之类的分发介质上承载的数字内容的装置和方法。 在一个实施例中，多个数字内容项目在多个不同的密钥管理块下进行加密，其中每个密钥管理块与一组不同的设备密钥相关联。 多个内容项目可以在单个分发介质上一起提供给具有分配的设备密钥的设备，使得设备可以选择性地访问由用于加密各种内容项目的不同密钥管理块所确定的内容以及分配给 设备。 根据设备密钥和密钥管理块之间的关联，解码设备可以解码所有内容项目，一些内容项目或者内容项目中的一个。 为了提供更大的安全性，每个内容项目可以使用每个内容项目的多个密钥管理块来进行多重加密。
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