Apparatus and method for generating digital cinema content and apparatus and method for playing digital cinema content
    2.
    发明授权
    Apparatus and method for generating digital cinema content and apparatus and method for playing digital cinema content 有权
    用于产生数字电影内容的装置和方法以及播放数字电影内容的装置和方法

    公开(公告)号:US08611726B2

    公开(公告)日:2013-12-17

    申请号:US13298844

    申请日:2011-11-17

    IPC分类号: H04N9/80

    CPC分类号: H04N9/87

    摘要: Provided are an apparatus and method for generating digital cinema content and an apparatus and method for playing digital cinema content. The method of playing digital cinema content using a digital cinema package (DCP) including frame data having a first resolution and length information about frame data having a second resolution lower than the first resolution, and a key delivery message (KDM) includes obtaining a material exchange format (MXF) file and a decryption key by parsing the DCP and the KDM, extracting an encrypted triplet from the MXF file, extracting the length information about the second-resolution frame data using the encrypted triplet and the decryption key, decrypting an amount of data required to decrypt the second-resolution frame data in the first-resolution frame data using the length information about the second-resolution frame data, and decoding the decrypted second-resolution frame data.

    摘要翻译: 提供了一种用于产生数字电影内容的装置和方法以及用于播放数字电影内容的装置和方法。 使用包括具有第一分辨率的帧数据和关于具有低于第一分辨率的第二分辨率的帧数据的长度信息的数字影院包(DCP)以及密钥传递消息(KDM)来播放数字电影内容的方法包括获得材料 交换格式(MXF)文件和解密密钥,通过解析DCP和KDM,从MXF文件中提取加密的三元组,使用加密的三元组和解密密钥提取关于第二分辨率帧数据的长度信息,解密数量 使用关于第二分辨率帧数据的长度信息来解密第一分辨率帧数据中的第二分辨率帧数据所需的数据,以及对解密的第二分辨率帧数据进行解码。

    APPARATUS AND METHOD FOR GENERATING DIGITAL CINEMA CONTENT AND APPARATUS AND METHOD FOR PLAYING DIGITAL CINEMA CONTENT
    3.
    发明申请
    APPARATUS AND METHOD FOR GENERATING DIGITAL CINEMA CONTENT AND APPARATUS AND METHOD FOR PLAYING DIGITAL CINEMA CONTENT 有权
    用于产生数字电影内容的装置和方法以及用于播放数字电影内容的装置和方法

    公开(公告)号:US20120121236A1

    公开(公告)日:2012-05-17

    申请号:US13298844

    申请日:2011-11-17

    IPC分类号: H04N9/80

    CPC分类号: H04N9/87

    摘要: Provided are an apparatus and method for generating digital cinema content and an apparatus and method for playing digital cinema content. The method of playing digital cinema content using a digital cinema package (DCP) including frame data having a first resolution and length information about frame data having a second resolution lower than the first resolution, and a key delivery message (KDM) includes obtaining a material exchange format (MXF) file and a decryption key by parsing the DCP and the KDM, extracting an encrypted triplet from the MXF file, extracting the length information about the second-resolution frame data using the encrypted triplet and the decryption key, decrypting an amount of data required to decrypt the second-resolution frame data in the first-resolution frame data using the length information about the second-resolution frame data, and decoding the decrypted second-resolution frame data.

    摘要翻译: 提供了一种用于产生数字电影内容的装置和方法以及用于播放数字电影内容的装置和方法。 使用包括具有第一分辨率的帧数据和关于具有低于第一分辨率的第二分辨率的帧数据的长度信息的数字影院包(DCP)以及密钥传递消息(KDM)来播放数字电影内容的方法包括获得材料 交换格式(MXF)文件和解密密钥,通过解析DCP和KDM,从MXF文件中提取加密的三元组,使用加密的三元组和解密密钥提取关于第二分辨率帧数据的长度信息,解密数量 使用关于第二分辨率帧数据的长度信息来解密第一分辨率帧数据中的第二分辨率帧数据所需的数据,以及对解密的第二分辨率帧数据进行解码。

    METHOD OF MANAGING GROUP KEY FOR SECURE MULTICAST COMMUNICATION
    4.
    发明申请
    METHOD OF MANAGING GROUP KEY FOR SECURE MULTICAST COMMUNICATION 审中-公开
    用于安全多播通信的组密钥管理方法

    公开(公告)号:US20110249817A1

    公开(公告)日:2011-10-13

    申请号:US13133920

    申请日:2009-05-13

    IPC分类号: H04L9/08

    摘要: A group key management method for secure multicast communication includes: creating a tree having a root node, internal nodes and leaf nodes to manage group keys of a receiver group by a group key management server; generating user keys of all nodes excluding the root node in the tree on the basis of Chinese Remainder Theorem; assigning the leaf nodes of the tree to users of the receiver group; and sending the user keys of the leaf nodes to the corresponding users for group key management. Further, the group key management method for secure multicast communication includes generating group keys of all non-leaf nodes; computing a solution of congruence equations based on the user key and group key by using Chinese Remainder Theorem for each non-leaf node; and multicasting a group key update message to each user of the respective leaf nodes.

    摘要翻译: 用于安全组播通信的组密钥管理方法包括:创建具有根节点,内部节点和叶节点的树,以通过组密钥管理服务器管理接收者组的组密钥; 根据中国剩余定理生成树中除根节点之外的所有节点的用户密钥; 将树的叶节点分配给接收者组的用户; 并将叶节点的用户密钥发送给相应的用户进行组密钥管理。 此外,用于安全组播通信的组密钥管理方法包括生成所有非叶节点的组密钥; 通过对每个非叶节点使用中国剩余定理,基于用户密钥和群密钥计算一致等式的解; 以及将组密钥更新消息多播到各个叶节点的每个用户。

    APPARATUS AND METHOD FOR DIGITAL HOME DOMAIN MANAGEMENT
    5.
    发明申请
    APPARATUS AND METHOD FOR DIGITAL HOME DOMAIN MANAGEMENT 审中-公开
    数字家庭管理的设备和方法

    公开(公告)号:US20100161781A1

    公开(公告)日:2010-06-24

    申请号:US12536846

    申请日:2009-08-06

    IPC分类号: G06F15/173

    摘要: An apparatus for digital home domain management includes a home domain server which manages in one user domain all user terminals within a home group and provides each user terminal with a domain license in contents; and a DRM coupler which provides the contents and domain licenses converted to conform to a DRM type loaded in user terminals if contents sharing is requested among user terminals loaded with different DRMs within the home group.

    摘要翻译: 一种用于数字家庭域管理的装置包括一个归属域服务器,其在一个用户域中管理家庭组内的所有用户终端,并为每个用户终端提供内容的域许可; 以及如果在家庭组内加载了不同DRM的用户终端之间请求内容共享,则提供转换成符合加载在用户终端中的DRM类型的内容和域许可的DRM耦合器。

    APPARATUS AND METHOD FOR SHARING CONTENT BETWEEN DEVICES BY USING DOMAIN DRM
    7.
    发明申请
    APPARATUS AND METHOD FOR SHARING CONTENT BETWEEN DEVICES BY USING DOMAIN DRM 审中-公开
    使用域DRM共享设备内容内容的装置和方法

    公开(公告)号:US20100138928A1

    公开(公告)日:2010-06-03

    申请号:US12537550

    申请日:2009-08-07

    IPC分类号: G06F21/00 G06F15/173

    CPC分类号: G06F21/10

    摘要: An apparatus for sharing content between devices by using a domain digital rights management (DRM) includes: a domain management unit for performing management of a domain within a specific area and registration of users and user devices; a user management unit for managing information about the users of the domain registered by the domain management unit; and a device management unit for managing domain clients of the domain registered by the domain management unit. The apparatus further includes a DRM management unit that has DRM information that supports the domain created through the domain management unit and update information about each DRM, and relays such that DRM content stored in each domain client is converted into domain DRM content and domain DRM license.

    摘要翻译: 一种用于通过使用域数字版权管理(DRM)在设备之间共享内容的装置包括:域管理单元,用于执行特定区域内的域的管理以及用户和用户设备的注册; 用于管理由域管理单元注册的域的用户的信息的用户管理单元; 以及用于管理域管理单元注册的域的域客户端的设备管理单元。 该装置还包括具有DRM信息的DRM管理单元,该DRM信息支持通过域管理单元创建的域并更新关于每个DRM的信息,并且中继,使得存储在每个域客户端中的DRM内容被转换成域DRM内容和域DRM许可 。