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    • 61. 发明申请
    • DIGITAL RIGHTS DOMAIN MANAGEMENT FOR SECURE CONTENT DISTRIBUTION IN A LOCAL NETWORK
    • 数字权限域内管理,用于本地网络中的安全内容分发
    • US20130179680A1
    • 2013-07-11
    • US13810886
    • 2011-07-20
    • Petr PeterkaNiels Thorwirth
    • Petr PeterkaNiels Thorwirth
    • H04L29/06
    • H04L63/10G06F21/10G06F2221/0717H04L49/35H04L63/0428H04L67/32H04L67/42H04N21/2541H04N21/26613H04N21/43615H04N21/4363H04N21/4627
    • Systems and methods for secure content distribution to playback devices connected to a local network via a residential gateway using secure links are disclosed. One embodiment of the invention includes a content server, a rights management server, a residential gateway configured to communicate with the content server and the rights management server via a network, and a playback device configured to communicate with the residential gateway via a local network. In addition, the residential gateway is configured to receive protected content from the content server, the playback device is configured to request access to the protected content from the residential gateway, the residential gateway is configured to request access to the protected content from the rights management server and the request includes information uniquely identifying the playback device, the rights management server is configured to provide access information to the residential gateway when the information uniquely identifying the playback device satisfies at least one predetermined criterion with respect to playback devices associated with the residential gateway, the residential gateway and the playback device are configured to create a secure link between the residential gateway and the playback device via the local network, and the residential gateway is configured to decrypt the protected content using the access information provided by the rights management server and to encrypt the decrypted content for distribution to the playback device via the secure link.
    • 公开了用于通过使用安全链路的住宅网关将安全内容分发给连接到本地网络的回放设备的系统和方法。 本发明的一个实施例包括内容服务器,权限管理服务器,被配置为经由网络与内容服务器和权限管理服务器通信的住宅网关,以及被配置为经由本地网络与住宅网关通信的回放设备。 此外,住宅网关被配置为从内容服务器接收受保护的内容,回放设备被配置为请求从住宅网关访问受保护内容,住宅网关被配置为请求从权限管理访问受保护内容 服务器,并且请求包括唯一地识别回放设备的信息,权限管理服务器被配置为当唯一标识回放设备的信息满足关于与住宅网关相关联的回放设备的至少一个预定标准时,向住宅网关提供访问信息 住宅网关和回放设备被配置为经由本地网络在住宅网关和回放设备之间创建安全链路,并且住宅网关被配置为使用由权限管理服务器提供的访问信息来解密受保护的内容 并且经解密的内容加密以经由安全链路分发到播放设备。
    • 64. 发明申请
    • Method and Apparatus for Digital Rights Management for Removable Media
    • 可移动媒体数字版权管理方法与装置
    • US20090180617A1
    • 2009-07-16
    • US11972433
    • 2008-01-10
    • Petr Peterka
    • Petr Peterka
    • H04L9/06
    • H04L9/083H04L2209/603
    • A process is provided. The process determines member devices in a domain of devices. Further, the process encrypts a set of content with a content encryption key to generate an encrypted set of content. In addition, the process encrypts the content encryption key with each of a plurality of pre-fetch keys to generate a plurality of encrypted content encryption keys. Each of the pre-fetch keys corresponds to a member device in the domain of devices. Finally, the process stores each of the encrypted content encryption keys in a content license corresponding to a member device in the domain of devices. The encrypted content may be stored on a removable medium. Further, the process allows another device to play back the content from the same removable medium.
    • 提供了一个过程。 该过程确定设备域中的成员设备。 此外,该过程使用内容加密密钥来加密一组内容以生成加密的内容集合。 此外,该过程利用多个预取密钥中的每一个来加密内容加密密钥,以生成多个加密的内容加密密钥。 每个预取密钥对应于设备域中的成员设备。 最后,该过程将每个加密内容加密密钥存储在与设备域中的成员设备相对应的内容许可证中。 加密内容可以存储在可移动介质上。 此外,该过程允许另一设备从相同的可移动介质播放内容。
    • 66. 发明授权
    • Dynamic security for digital television receivers
    • 数字电视接收机的动态安全
    • US06948183B1
    • 2005-09-20
    • US09716682
    • 2000-11-20
    • Petr Peterka
    • Petr Peterka
    • H04N7/16
    • H04N21/44213H04N7/162H04N21/235H04N21/435H04N21/4405H04N21/44231H04N21/4532H04N21/4627H04N21/4751
    • A system that allows service providers, consumer electronic (CE) manufacturers or standards bodies to define flexible security policies (110) for the execution of downloaded applications (120) on digital television (DTV) receivers (160). The current receiver environment in which a software application is to be run is evaluated. For example, environmental factors such as time of day, date, channel currently tuned in, parental lockout status, grouping of major and minor virtual channels, and so forth, may be considered. An access controller (168) determines if the receiver's environmental factors satisfy the conditions for granting a permission to a downloadable application to allow access to the receiver functions (161), receiver resources and user private data. The security policy can be modified by installing or downloading a new security policy (110), or modified by a user with the provision of an appropriate interface. A Java code-implemented embodiment is disclosed.
    • 一种允许服务提供商,消费电子(CE)制造商或标准机构定义用于在数字电视(DTV)接收机(160)上执行下载的应用(120)的灵活安全策略(110)的系统。 评估要运行软件应用程序的当前接收器环境。 例如,可以考虑诸如时间,日期,当前调整的频道,父母锁定状态,主要和次要虚拟频道的分组等环境因素。 访问控制器(168)确定接收机的环境因素是否满足允许下载应用允许访问接收机功能(161),接收者资源和用户专用数据的条件。 可以通过安装或下载新的安全策略(110)来修改安全策略,或者通过提供适当的接口由用户进行修改。 公开了一种Java代码实现的实施例。
    • 69. 发明申请
    • COORDINATED VIEWING EXPERIENCE AMONG REMOTELY LOCATED USERS
    • 在远程位置的用户协调查看体验
    • US20110150214A1
    • 2011-06-23
    • US12643263
    • 2009-12-21
    • William L. GleimPetr Peterka
    • William L. GleimPetr Peterka
    • H04N7/167H04L9/08
    • H04N21/4788H04L9/0822H04L9/083H04L2209/60H04N21/4302H04N21/4405H04N21/4627
    • A method of viewing a content item is provided. The method includes receiving an encrypted content item and a network address of a key management system from a primary client device over a communications network. A session key is obtained over the communications network and the primary client device is notified that the session key has been obtained. An encrypted version of a content key is received over the communication network to decrypt the content item and content rights that determine access to the content item. The content rights restrict the content item from being rendered unless it is rendered in coordination with the rendering of the content item by the primary client device. The encrypted version of a content key is decrypted with the session key. The content item is rendered in accordance with the content rights by decrypting the content item with the content key.
    • 提供了一种查看内容项目的方法。 该方法包括通过通信网络从主客户端设备接收密钥管理系统的加密内容项目和网络地址。 通过通信网络获得会话密钥,并且通知主客户端设备已经获得会话密钥。 通过通信网络接收内容密钥的加密版本,以解密确定对内容项目的访问的内容项目和内容权限。 内容权限限制内容项目被呈现,除非与主客户端设备呈现内容项目一起呈现。 用密钥解密内容密钥的加密版本。 通过利用内容密钥解密内容项目,根据内容权限呈现内容项目。