APPLICATION PROGRAMMING INTERFACE FOR ENABLING A DIGITAL TELEVISION RECEIVER TO ACCESS SYSTEM INFORMATION IN AN ABSTRACT FORMAT
    1.
    发明公开
    APPLICATION PROGRAMMING INTERFACE FOR ENABLING A DIGITAL TELEVISION RECEIVER TO ACCESS SYSTEM INFORMATION IN AN ABSTRACT FORMAT 审中-公开
    应用编程接口的数字电视接收机访问信息系统的摘要格式,以允许

    公开(公告)号:EP1125432A1

    公开(公告)日:2001-08-22

    申请号:EP99971609.5

    申请日:1999-10-28

    IPC分类号: H04N7/00 H04N7/24 H04N5/00

    摘要: An application programming interface (API) allows applications (e.g., applets) at a digital television terminal to recover System Information (SI) from a digital transport stream without regard to the specific SI format. The API abstracts the relevant portions of the SI to provide it in a generic, usable format. The system is suitable for use, e.g., with SI formats including MPEG Program Specific Informatgion (PSI), DVB SI, ATSC Program and System Information Protocol (PSIP), Cable SI such as Digital Video Standard 234, and private SI. In an optional embodiment, asynchronous delivery of SI is provided for SI that is not immediately available in the terminal's memory. Additionally, the API can further abstract the SI so that it is independent of the specific transport stream format (e.g., MPEG-2). Moreover, incremental retrieval of SI data is provided by allowing an application to obtain a small subset of the SI that is available at the terminal, analyze it, and retrieve additional SI if required based on the analysis. The API includes a navigation package (110), a program guide package (120), a program selection/tuning package (130), a descriptor package (140), a utility package (150), a data package (160), and a pipeline package (170).

    DIGITAL RIGHTS MANAGEMENT WITH IRREGULAR NETWORK ACCESS
    2.
    发明公开
    DIGITAL RIGHTS MANAGEMENT WITH IRREGULAR NETWORK ACCESS 审中-公开
    DIGITALE RECHTEVERWALTUNG MITUNREGELMÄSSIGEMNETZWERKZUGANG

    公开(公告)号:EP2572311A1

    公开(公告)日:2013-03-27

    申请号:EP11744117.0

    申请日:2011-05-23

    IPC分类号: G06F21/00

    CPC分类号: G06F21/10 G06F2221/2135

    摘要: There is a performing of digital rights management (DRM), operable in an offline mode with respect to a communications network. The performing includes identifying a stored rights object associated with a stored asset. The stored rights object includes reporting duration information associated with the stored asset. The performing also includes determining, utilizing a processor, whether a transmission of an early status message is a successful communication based on an early status message determination. If a failure in communicating the early status message is determined, utilizing the stored asset. The performing may also include transmitting an early status message and/or later status message after identifying the stored rights object. There is also a performing of digital rights management (DRM) associated with a DRM system and operable in an offline mode with respect to a communications network. There are also client devices, communicating systems, computer readable mediums and protocols.

    摘要翻译: 数字版权管理(DRM)的执行可以在通信网络的离线模式下操作。 执行包括识别与存储的资产相关联的存储的权利对象。 存储的权利对象包括与存储的资产相关联的报告持续时间信息。 执行还包括基于早期状态消息确定来确定利用处理器是否早期状态消息的传输是成功的通信。 如果确定通信早期状态消息失败,则利用存储的资产。 执行还可以包括在识别所存储的权利对象之后发送早期状态消息和/或后续状态消息。 还存在与DRM系统相关联的数字权限管理(DRM)的执行,并且可以相对于通信网络以离线模式操作。 还有客户端设备,通信系统,计算机可读介质和协议。

    SYSTEM AND METHOD FOR ENCRYPTING AND DECRYPTING DATA
    3.
    发明公开
    SYSTEM AND METHOD FOR ENCRYPTING AND DECRYPTING DATA 审中-公开
    系统在VERFAHREN ZURVERSCHLÜSSELUNGUNDENTSCHLÜSSELUNGVON DATEN

    公开(公告)号:EP2507999A2

    公开(公告)日:2012-10-10

    申请号:EP10813052.7

    申请日:2010-11-30

    IPC分类号: H04N7/24

    摘要: A method is provided for creating an encrypted data file (700) from a data file having a sample entry box and a media data box. The sample entry box has description information therein. The media data box includes media data therein. The method includes: receiving the data file; encrypting the media data within the media data box with an encryption key; replacing the sample entry box with an encoded box (302); creating a sinf box (702) within the encoded box (302); creating a frma box (306) within the sinf box (702); and creating an schm box (704) within the sinf box (702). The schm box (704) indicates the type of formatting of the encrypted media data. The encoded box (302) does not include an initial counter that may be used to decrypt the encrypted media data.

    摘要翻译: 提供了一种从具有样本输入框和媒体数据框的数据文件创建加密数据文件的方法。 样品输入框中有描述信息。 媒体数据框包括其中的媒体数据。 该方法包括:接收数据文件; 用加密密钥加密媒体数据盒内的媒体数据; 用编码框替换样品输入框; 在编码框内创建一个sinf框; 在sinf框内创建一个方框; 并在sinf框内创建一个schm箱。 schm框指示加密的媒体数据的格式化类型。 编码框不包括可用于解密加密的媒体数据的初始计数器。

    SOFTWARE APPLICATION LIFE CYCLE AND MANAGEMENT FOR BROADCAST APPLICATIONS
    4.
    发明公开
    SOFTWARE APPLICATION LIFE CYCLE AND MANAGEMENT FOR BROADCAST APPLICATIONS 审中-公开
    生命周期和管理软件应用的广播应用的

    公开(公告)号:EP1119963A1

    公开(公告)日:2001-08-01

    申请号:EP99951932.5

    申请日:1999-10-07

    IPC分类号: H04N5/00

    摘要: A software architecture for managing applications at a television set-top terminal. An Application Programming Interface (API) provides an ITU-T X.731-based mechanism for monitoring and controlling the applications. Applications, such as a grogram guide, stock ticker or the like, are recovered at the terminal according to an associated locator. The applications are registered (205) and installed at the terminal, and a user is notified of the presence of the applications after registration thereof. The API (270) enables running, pausing, resuming and stopping of the applications. The API also enables the applications to advertise their respective states to other applications, such as alarm statuses (325), availability statuses (330), procedural statuses (335), operational states (310), administrative states (305), and usage states (315).