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    CONTENT PROTECTION
    3.
    发明申请
    CONTENT PROTECTION 审中-公开
    内容保护

    公开(公告)号：WO2017001467A1

    公开(公告)日：2017-01-05

    申请号：PCT/EP2016/065129

    申请日：2016-06-29

    Applicant: NAGRAVISION SA

    Inventor： SCHWARZ, Christian ,  NICOULIN, André ,  HUNACEK, Didier

    IPC: H04N21/4405 ,  H04N21/4623 ,  H04N21/266 ,  H04N7/167 ,  H04N7/16 ,  H04N21/2347 ,  H04N21/418

    CPC classification number: H04N21/2347 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/4405 ,  H04N21/4623

    Abstract: Devices, servers, systems and methods for content protection are provided. Disclosed embodiments improve temporal granularity of controlling access to the protected content and increase resilience against attacks attempting to prevent re-evaluation of conditions of access. Enforcement of re-evaluation may be based on the receipt and/or verification of tokens. In some embodiments, re-evaluation is enforced by periodically rendering content keys required for content decryption unuseable and/or clearing content keys already in use.

    Abstract translation: 提供了用于内容保护的设备，服务器，系统和方法。 公开的实施例改进了控制对受保护内容的访问的时间粒度，并提高了针对尝试防止重新评估访问条件的攻击的弹性。 重新评估的执行可以基于令牌的收据和/或验证。 在一些实施例中，通过周期性地呈现内容解密所使用的不可使用和/或清除已经在使用的内容密钥来执行重新评估。

    机顶盒的数据加密方法及系统
    4.
    发明申请
    机顶盒的数据加密方法及系统 审中-公开

    公开(公告)号：WO2016206018A1

    公开(公告)日：2016-12-29

    申请号：PCT/CN2015/082207

    申请日：2015-06-24

    Applicant: 冯旋宇

    Inventor： 冯旋宇

    IPC: H04N21/2347 ,  H04N21/4405

    CPC classification number: H04N21/2347 ,  H04N21/4405

    Abstract: 本发明属于通信领域，提供一种机顶盒的数据加密，所述该方法包括如下步骤：101、向服务器发送私钥请求消息，该消息携带机顶盒的MAC地址；102、接收服务器向机顶盒发送的私钥信息；103、向服务器发送视频请求，接收服务器返回的采用公钥加密的视频信息；104、机顶盒采用私钥对该公钥加密的视频信息进行解码得到视频信息，对该视频信息播放；所述私钥和所述公钥为一秘钥对。本发明提供的方法具有安全性高的优点。

    A METHOD AND DEVICE FOR DISTRIBUTING MULTIMEDIA LICENCES WITHIN A DISTRIBUTION SYSTEM OF A SECURE MULTIMEDIA SERVICE
    6.
    发明申请
    A METHOD AND DEVICE FOR DISTRIBUTING MULTIMEDIA LICENCES WITHIN A DISTRIBUTION SYSTEM OF A SECURE MULTIMEDIA SERVICE 审中-公开
    在安全多媒体服务的分发系统中分配多媒体许可证的方法和设备

    公开(公告)号：WO2015062836A3

    公开(公告)日：2016-05-26

    申请号：PCT/EP2014071672

    申请日：2014-10-09

    Applicant: NAGRAVISION SA

    Inventor： LUGEON BLAISE ,  BIEBER YANN

    IPC: H04N21/2347 ,  H04N21/24 ,  H04N21/254 ,  H04N21/258 ,  H04N21/266 ,  H04N21/4627

    CPC classification number: H04N21/2347 ,  H04N21/2405 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/26613 ,  H04N21/4627 ,  H04N21/64322

    Abstract: The invention relates to a method for distributing multimedia licenses (LIR, LIS) through a server to a plurality of devices in a distribution system of a protected-access multimedia service by first protection (KT1). This method aims to: - verify that the computation resources used by the server do not exceed a maximum threshold, and if they do, generate, then send regular licenses (LIR) including the first protection (KT1) in response to requests from the devices, and if not, switch the server to a singular mode consisting of: - protecting access to the multimedia service by second protection (KT2), independent of the first protection (KT1), - generating and sending to the devices a singular licence (LIS) including the second protection (KT2), - verifying that the computation resources do not exceed the maximum threshold, and if they do, switching from the singular mode to a regular mode so as to protect access to the multimedia service using only said first protection (KT1).

    Abstract translation: 本发明涉及通过第一保护（KT1）通过服务器将多媒体许可证（LIR，LIS）分发到受保护接入多媒体业务的分发系统中的多个设备的方法。 该方法旨在： - 验证服务器使用的计算资源不超过最大阈值，如果生成，则根据设备的请求发送包括第一保护（KT1）的常规许可证（LIR） ，如果不是，将服务器切换到单一模式，包括： - 独立于第一保护（KT1），通过第二保护（KT2）保护对多媒体服务的访问， - 生成并向设备发送单一许可证（LIS） ）包括第二保护（KT2）， - 验证计算资源不超过最大阈值，如果是，则将其从奇异模式切换到常规模式，以便仅使用所述第一保护来保护对多媒体服务的访问 （KT1）。

    IMAGING DATA CAPTURE AND VIDEO STREAMING SYSTEM
    7.
    发明申请
    IMAGING DATA CAPTURE AND VIDEO STREAMING SYSTEM 审中-公开
    成像数据捕获和视频流媒体系统

    公开(公告)号：WO2016064800A1

    公开(公告)日：2016-04-28

    申请号：PCT/US2015/056339

    申请日：2015-10-20

    Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH

    Inventor： YOON, Jangwon ,  CHEN, Robert ,  HAN, Phillip ,  SI, Phong, Su

    IPC: G02B27/01 ,  A61B34/10 ,  A61B19/00

    CPC classification number: G02B27/0172 ,  A61B34/10 ,  G02B27/017 ,  G02B2027/0123 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  H04N21/2347 ,  H04N21/42203 ,  H04N21/4223 ,  H04N21/43637

    Abstract: Systems and methods of the present invention provide for one or more server computers communicatively coupled to a network and configured to: receive an imaging data from a medical imaging device; encode a digital video data stream from the video data; transmit the digital video data stream via a wireless channel to at least one terminal output device coupled to the network, the terminal output device comprising: a camera mounted to the terminal output device comprising a lens transmitting, to the terminal output device, a view of a surgical field; and a display attached to the terminal output device and displaying the digital video data stream concurrently with the view of the surgical field.

    Abstract translation: 本发明的系统和方法提供通信地耦合到网络并被配置为：从医学成像设备接收成像数据的一个或多个服务器计算机; 从视频数据对数字视频数据流进行编码; 经由无线信道将数字视频数据流发送到耦合到网络的至少一个终端输出设备，终端输出设备包括：安装到终端输出设备的照相机，包括透镜，向终端输出设备发送 手术领域 以及附接到终端输出设备的显示器，并且与外科视野同时显示数字视频数据流。

    CHANNEL-BASED LIVE TV CONVERSION
    8.
    发明申请
    CHANNEL-BASED LIVE TV CONVERSION 审中-公开
    基于通道的直播电视转换

    公开(公告)号：WO2016057944A2

    公开(公告)日：2016-04-14

    申请号：PCT/US2015/054977

    申请日：2015-10-09

    Applicant: FIVEBYFIVE, INC.

    Inventor： TANG, George

    IPC: H04N21/266

    CPC classification number: H04N21/234309 ,  G11B27/10 ,  H04N5/265 ,  H04N21/2187 ,  H04N21/23424 ,  H04N21/2347 ,  H04N21/242 ,  H04N21/252 ,  H04N21/2541 ,  H04N21/25875 ,  H04N21/2665 ,  H04N21/42204 ,  H04N21/4312 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/4668 ,  H04N21/47202 ,  H04N21/6125 ,  H04N21/6334 ,  H04N21/812 ,  H04N21/8456

    Abstract: Several embodiments include an Internet-based video delivery system that retains channel browsing capabilities. The video delivery system can include a backend server system. The backend server system can receive input feeds from channel programming of content providers. The backend server system can encode the input feeds into video streams deliverable over the Internet. The backend server system can transmit a video stream to multiple user devices in substantially real-time. The backend server system can also record the video stream in a media storage protected by an authentication engine. The backend server system can then generate a channel-side control interface, available to an authorized account associated with the content providers, to enable remote management of live distribution of the video streams and/or on-demand distribution of the recorded video streams.

    Abstract translation: 几个实施例包括保持信道浏览能力的基于因特网的视频传送系统。 视频传送系统可以包括后端服务器系统。 后端服务器系统可以从内容提供商的频道节目接收输入数据。 后端服务器系统可以将输入的订阅源编码成可通过互联网传递的视频流。 后端服务器系统可以基本上实时地将视频流传输到多个用户设备。 后端服务器系统还可以将视频流记录在由认证引擎保护的媒体存储器中。 后端服务器系统然后可以生成可用于与内容提供商相关联的授权帐户的频道侧控制接口，以便能够远程管理视频流的实况分发和/或录制的视频流的按需分发。

    DATA ADAPTIVE COMPRESSION AND DATA ENCRYPTION USING KRONECKER PRODUCTS
    10.
    发明申请
    DATA ADAPTIVE COMPRESSION AND DATA ENCRYPTION USING KRONECKER PRODUCTS 审中-公开
    数据自适应压缩和使用KRONECKER产品的数据加密

    公开(公告)号：WO2016029163A1

    公开(公告)日：2016-02-25

    申请号：PCT/US2015/046382

    申请日：2015-08-21

    Applicant: NOVA SOUTHEASTERN UNIVERSITY

    Inventor： BOUROUIHIYA, Abdelkrim

    IPC: H04N21/262

    CPC classification number: H04N21/2347 ,  G06F17/16 ,  H04L9/3066 ,  H04N19/46

    Abstract: Digital files are compressed using a process including Schmidt decompositions of matrices using an algorithm, termed 'BSD' herein, which is based on an algebraic method generalizing QR decomposition. Software analyzes an input file and initially identifies a matrix M , with entries within a predefined set of integers, within the file. Next, essential entries are defined, extracted from M , that contain sufficient information to recover Musing BSD. The compressed file includes the essential entries and their positions within M . To achieve an encryption process, software encrypts the pattern matrix that includes the positions of the essential entries of M . To achieve a lossy compression, software identifies essential entries that contain sufficient information to recover an approximation to M for which the quality is determined by an error threshold. For a more efficient lossy compression, software uses singular value decomposition, BSD, and other signal processing of M .

    Abstract translation: 使用本文中称为“BSD”的算法使用包括Schmidt矩阵分解的过程来压缩数字文件，该算法基于概括QR分解的代数方法。 软件分析输入文件，并且最初在文件内识别具有预定义整数集的条目的矩阵M。 接下来，定义从M提取的基本条目，其中包含足够的信息以恢复Musing BSD。 压缩文件包括M中的基本条目及其位置。为了实现加密过程，软件加密包含M的基本条目位置的模式矩阵。为了实现有损压缩，软件识别包含足够信息的基本条目 恢复对于质量由误差阈值确定的M的近似值。 为了更有效的有损压缩，软件使用奇异值分解，BSD和其他信号处理。

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