Software plug-in framework to modify decryption methods in terminals
    1.
    发明授权
    Software plug-in framework to modify decryption methods in terminals 有权
    软件插件框架修改终端中的解密方法

    公开(公告)号:US08379864B2

    公开(公告)日:2013-02-19

    申请号:US10888575

    申请日:2004-07-09

    IPC分类号: H04L29/06

    摘要: The present invention provides methods, apparatuses, and systems for delivering protected multi-media content to a receiving device. Protected multi-media content and key information are inserted in a same time slice burst. A receiving device receives the time slice burst with the content datagrams and the key information and decrypts the content datagrams with the key information. Key datagrams may be associated with a higher priority level than content datagrams. Consequently, a receiving device can process a key datagram in order to extract a key before routing associated content datagrams to a message stack. A key may be encrypted at one or two levels of encryption. Additionally, a new security plug-in software module may be deployed at a receiving device. The new security plug-in software module is configured as an installation package that is encrypted as a protected message and that is decrypted by the receiving device.

    摘要翻译: 本发明提供了将受保护的多媒体内容传送到接收设备的方法,装置和系统。 受保护的多媒体内容和密钥信息以相同的时间片断插入。 接收设备利用内容数据报和密钥信息接收时片脉冲串,并用密钥信息解密内容数据报。 关键数据报可能与内容数据报相比具有更高的优先级。 因此,接收设备可以处理密钥数据报,以便在将相关联的内容数据报路由到消息堆栈之前提取密钥。 密钥可以在一个或两个加密级别进行加密。 另外,可以在接收设备处部署新的安全插件软件模块。 新的安全插件软件模块被配置为作为受保护消息加密并由接收设备解密的安装包。

    Techniques for utilization of spare bandwidth
    3.
    发明授权
    Techniques for utilization of spare bandwidth 有权
    利用备用带宽的技术

    公开(公告)号:US07729385B2

    公开(公告)日:2010-06-01

    申请号:US10976851

    申请日:2004-11-01

    摘要: A packet encapsulator includes a filter module that identifies one or more carousel packets from a plurality of received packets. These one or more carousel packets are then stored in a packet buffer. The packet encapsulator also includes a channel queue for enqueuing packets for transmission across a broadcast transmission medium. For instance, the channel queue also receives the forwarding packets from the filter module. The channel queue also receives the one or more carousel packets from the packet buffer when at least a predetermined amount of available bandwidth exists in the broadcast transmission medium. The broadcast transmission medium may be a digital broadcast network such as a DVB handheld (DVB-H) network or a DVB terrestrial (DVB-T) network. Alternatively, the broadcast transmission medium may be a cable network.

    摘要翻译: 分组封装器包括从多个接收分组识别一个或多个轮播分组的过滤器模块。 然后将这些一个或多个转盘分组存储在分组缓冲器中。 分组封装器还包括用于对通过广播传输介质传输的分组进行排队的信道队列。 例如,通道队列还从过滤器模块接收转发数据包。 当在广播传输介质中存在至少预定量的可用带宽时,信道队列还从分组缓冲器接收一个或多个轮播分组。 广播传输介质可以是诸如DVB手持(DVB-H)网络或DVB地面(DVB-T)网络的数字广播网络。 或者,广播传输介质可以是有线网络。

    Use of signaling for auto-configuration of modulators and repeaters
    4.
    发明授权
    Use of signaling for auto-configuration of modulators and repeaters 失效
    使用信令自动配置调制器和转发器

    公开(公告)号:US07626960B2

    公开(公告)日:2009-12-01

    申请号:US10827712

    申请日:2004-04-20

    申请人: Dominique Müller

    发明人: Dominique Müller

    IPC分类号: H04W4/00 H04B7/14

    摘要: The present invention provides methods and apparatuses for configuring a modulator in a digital broadcast system using service information that is also broadcast to wireless terminals. In an embodiment of the invention, the service information is provided by a generator that encapsulates the service information in a transport stream that is received by a cell transmitter. The service information is parsed by each cell transmitter to determine the current modulator parameters. If at least one of the modulation parameters has changed, the associated modulator is reconfigured with the updated modulation parameters. The invention also provides methods and apparatuses for supporting repeaters in the digital broadcast system in order to provide supplementary RF coverage in associated cells. A repeater may retransmit a received radio signal at the same frequency or at a different frequency.

    摘要翻译: 本发明提供了使用也广播到无线终端的服务信息来配置数字广播系统中的调制器的方法和装置。 在本发明的一个实施例中,服务信息由发送器提供,该发生器将服务信息封装在由小区发射机接收的传输流中。 服务信息由每个小区发射机解析以确定当前的调制器参数。 如果调制参数中的至少一个已经改变,则使用更新的调制参数重新配置相关联的调制器。 本发明还提供了用于在数字广播系统中支持中继器的方法和装置,以便在相关联的小区中提供补充的RF覆盖。 中继器可以以相同的频率或不同的频率重传接收的无线电信号。

    System and method for synchronizing a transport stream in a single frequency network
    5.
    发明授权
    System and method for synchronizing a transport stream in a single frequency network 失效
    用于在单个频率网络中同步传输流的系统和方法

    公开(公告)号:US07336646B2

    公开(公告)日:2008-02-26

    申请号:US10973200

    申请日:2004-10-26

    申请人: Dominique Müller

    发明人: Dominique Müller

    IPC分类号: H04J3/16

    CPC分类号: H04H20/67 H04H20/18

    摘要: A single frequency network (SFN) system is provided, where the system includes a head-end and a plurality of transmitters. The head-end is capable of calculating timing information based upon a time reference having a second resolution. Thereafter, the head-end is capable of sending content including the timing information. The transmitters are capable of receiving the content including the timing information. At least one transmitter is capable of calculating a delay to synchronize the content with content received by at least one other transmitter. In this regard, the transmitter(s) are capable of calculating the delay based upon the timing information and a time reference having a first resolution, the first resolution being higher than the second resolution such that the delay has a higher accuracy than the timing information. After the delay, then, the transmitter(s) are capable of broadcasting the synchronized content to a plurality of mobile terminals.

    摘要翻译: 提供了单频网络(SFN)系统,其中系统包括头端和多个发射机。 前端能够基于具有第二分辨率的时间基准来计算定时信息。 此后,头端能够发送包括定时信息的内容。 发射机能够接收包括定时信息的内容。 至少一个发射机能够计算延迟以使内容与由至少一个其他发射机接收的内容同步。 在这方面,发射机能够基于定时信息和具有第一分辨率的时间基准来计算延迟,第一分辨率高于第二分辨率,使得延迟具有比定时信息更高的精度 。 在延迟之后,发射机能够将同步的内容广播到多个移动终端。

    Providing zapping streams to broadcast receivers
    6.
    发明授权
    Providing zapping streams to broadcast receivers 有权
    向广播接收机提供切换流

    公开(公告)号:US08291448B2

    公开(公告)日:2012-10-16

    申请号:US11662401

    申请日:2005-09-15

    IPC分类号: H04N7/10 H04N7/025

    摘要: Methods and systems for providing zapping data for one or more programs transmitted using timeslicing are disclosed herein. Zapping data may be provided by a zapping data provider or server, or may be created at the mobile terminal based on received program information. Zapping data may be provided to mobile terminals via a wireless multicast network, such as a DVB-H network, using a variety of timeslicing techniques, including providing a separate zapping data stream, providing zapping data as part of the source stream, or allowing mobile terminals to derive zapping data from the source content's broadcast stream. Zapping images may be selected from I-frames of video transmissions. An IP encapsulator may synchronize broadcast streams such that I-frames are transmitted concurrently, and at the beginning of timeslice bursts.

    摘要翻译: 本文公开了用于提供使用时间片传送的一个或多个程序的切换数据的方法和系统。 切换数据可以由切换数据提供商或服务器提供,或者可以基于接收的节目信息在移动终端处创建。 可以经由诸如DVB-H网络的无线多播网络(例如DVB-H网络)向移动终端提供切换数据,其使用各种时分复用技术,包括提供单独的切换数据流,提供作为源流的一部分的切换数据,或允许移动 终端从源内容的广播流导出切换数据。 可以从视频传输的I帧中选择Zapping图像。 IP封装器可以同步广播流,使得I帧被同时发送,并且在时间片段的开始处突发。

    Signaling mechanism for handover in digital broadcasting
    7.
    发明授权
    Signaling mechanism for handover in digital broadcasting 失效
    数字广播切换信令机制

    公开(公告)号:US07486640B2

    公开(公告)日:2009-02-03

    申请号:US10968087

    申请日:2004-10-20

    IPC分类号: H04Q7/00

    CPC分类号: H04H20/26 H04H20/22

    摘要: A time slicing digital broadcast system includes a dynamic handover process switching a handheld terminal receiving services in a first signal to a second signal providing the same services, while roaming among cells in the digital broadcast system. The terminal takes into account the varying intervals between bursts in the current cell and the target cell. The terminal identifies possible handover signals from a MPE/FEC frame in a data stream. A table in the MPE/FEC frame transmitted once on each transport stream contains the mapping of the real-time handover signaling to the handovers that are possible from signals that are transporting the actual transport stream. The table contains a calculated retune interval specifying the guaranteed interval for the MPE/FEC frame. In another embodiment, the MPE/FEC frame contains MAC addressing bits in the MPE section for real-time parameters in time slicing. The bits may be converted into signaling scenarios for guaranteed handover time.

    摘要翻译: 时分片数字广播系统包括动态切换过程,其将在第一信号中接收服务的手持终端切换到提供相同服务的第二信号,同时在数字广播系统中的小区之间漫游。 终端考虑当前小区中的突发和目标小区之间的变化间隔。 终端识别来自数据流中的MPE / FEC帧的可能切换信号。 在每个传输流上传输一次的MPE / FEC帧中的表包含实时切换信令到可能从传送实际传输流的信号到切换的映射。 该表包含计算的重调间隔,指定MPE / FEC帧的保证间隔。 在另一个实施例中,MPE / FEC帧在时间分片中包含MPE部分中的实时参数的MAC寻址位。 这些比特可以被转换成用于保证切换时间的信令场景。

    Mobile television electronic service guide delivery system
    9.
    发明授权
    Mobile television electronic service guide delivery system 有权
    移动电视电子服务指导系统

    公开(公告)号:US07827579B2

    公开(公告)日:2010-11-02

    申请号:US10936818

    申请日:2004-09-09

    IPC分类号: H04N5/445

    摘要: Methods and systems for transmitting electronic service guide (ESG) data to a mobile terminal are described. The method for delivery of ESG data comprises steps of receiving ESG data, encapsulating metadata associated with the ESG data to generate a new ESG object, replacing a current ESG object with the new ESG object, transmitting the new ESG object in a carousel, and transmitting a notification of a change in the carousel. Another method for receiving ESG data comprises steps of receiving a notification of a change in a carousel, receiving a new ESG object in the carousel, replacing a current ESG object with the new ESG object, extracting metadata associated with ESG data from the new ESG object, storing the ESG data and metadata, and updating an ESG on a mobile terminal with the ESG data.

    摘要翻译: 描述了将电子服务指南(ESG)数据发送到移动终端的方法和系统。 传递ESG数据的方法包括以下步骤:接收ESG数据,封装与ESG数据相关联的元数据以生成新的ESG对象,用新的ESG对象替换当前的ESG对象,在轮播中发送新的ESG对象,以及发送 通知转盘的更改。 用于接收ESG数据的另一种方法包括以下步骤:接收轮播中的改变的通知,在轮播中接收新的ESG对象,用新的ESG对象替换当前的ESG对象,从新的ESG对象提取与ESG数据相关联的元数据 存储ESG数据和元数据,以及使用ESG数据在移动终端上更新ESG。