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31. 发明申请

WO2018078152A1 METHOD TO TRANSMIT AN AUDIO/VIDEO STREAM OF TO A DESTINATION DEVICE 审中-公开
标题翻译：将音频/视频流传输到目标设备的方法
公开(公告)号：WO2018078152A1
公开(公告)日：2018-05-03
申请号：PCT/EP2017/077736
申请日：2017-10-30
申请人： NAGRAVISION S.A.
发明人： DEVALLONNÉ, Luc
IPC分类号： H04L12/801 , H04N21/6583 , H04L29/06 , H04N21/6377 , H04N21/6373 , H04N21/2343 , H04N21/262 , H04N21/845
CPC分类号： H04N21/6583 , H04L29/06476 , H04L47/10 , H04N21/23439 , H04N21/26258 , H04N21/6373 , H04N21/6377 , H04N21/8456
摘要： The present disclosure refers to the field of streaming media content to a client device. In the frame of the present disclosure, it is proposed a method and system to transmit an audio/video stream of to a destination device, said audio/video stream comprising a plurality first segments, each representing a first duration of video at original bit-rate, said method comprising : - receiving and decompressing by a transcoding node the audio/video stream to obtain a decompressed video stream and an audio stream, - dividing the decompressed video stream into a plurality of second segments, each segment representing a second duration of video at original bit-rate, said second duration being smaller than the first duration, - generating at least one low bit-rate version of the second segment, and compressing the at least one low bit-rate segment and the second segment, multiplexing the at least one low bit-rate segment, the second segment and the audio segment to produce a multi-bit-rate stream, transmitting the multi-bit-rate stream to at least one Network Access Point, - demultiplexing by the Network Access Point the multi-bit-rate stream to obtain the second segment and the at least one lower bit-rate segment, - receiving by the Network Access Point from the destination device a request to the audio/video stream, selecting the original bit-rate segment or one of the lower bit-rate segments, multiplexing the selected segment with the audio segment to form a multiplexed segment, transmitting the multiplexed segment to the destination device, receiving at least one acknowledgement message from the destination device that the multiplexed segment has been received, determining, by the Network Access Point, a level of completion of the multiplexed segment by the destination device, said level of completion being derived from the acknowledgment message, selecting the original bit-rate segment or one of the lower bit-rate segment based on the level of completion for the further multiplexed segment.
摘要翻译：本公开涉及到客户端设备的流媒体内容的领域。在本公开的框架中，提出了一种用于将音频/视频流发送到目的地设备的方法和系统，所述音频/视频流包括多个第一段，每个段表示在原始比特位置处的第一视频持续时间，所述方法包括： - 由代码转换节点接收音频/视频流并将其解压缩以获得解压缩的视频流和音频流; - 将解压缩的视频流划分成多个第二段，每个段表示第二持续时间所述第二持续时间小于所述第一持续时间， - 生成所述第二分段的至少一个低比特率版本，以及压缩所述至少一个低比特率分段和所述第二分段，将所述至少一个低比特率分段和所述第二分段复用至少一个低比特率段，所述第二段和所述音频段以产生多比特率流，将所述多比特率流发送到至少一个网络接入点，由网络接入点将多比特率流复用以获得第二段和至少一个较低比特率段;由网络接入点从目的地设备接收对音频/视频流的请求; 原始比特率段或较低比特率段中的一个，将选定段与音频段复用以形成复用段，将复用段传输到目的地设备，从目的地设备接收至少一个确认消息，已经接收到多路复用段，由网络接入点确定目标设备完成多路复用段的级别，所述完成级别从确认消息中导出，选择原始比特率段或其中一个根据进一步多路复用段的完成程度降低比特率段。

32. 发明申请

WO2018046440A1 RAY-TRACING METHODS FOR REALISTIC INTERACTIVE ULTRASOUND SIMULATION 审中-公开
标题翻译：用于实际交互式超声模拟的RAY追踪方法
公开(公告)号：WO2018046440A1
公开(公告)日：2018-03-15
申请号：PCT/EP2017/072108
申请日：2017-09-04
申请人： EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH (ETHZ)
发明人： MATTAUSCH, Oliver , GOKSEL, Orcun , MAKHINYA, Maxim
IPC分类号： G06T15/06
摘要： Stochastic ray-tracing methods such as Monte-Carlo ray-tracing may be adapted to provide more efficient and more realistic ultrasound imaging systems and methods.Many random ray paths that are perturbed according to a probability distributionmay be generateduntil they converge to the correct solution. New surface thickness and roughness models enable to reproduce complex ultrasound interactions such as multiple reflections and refractions.The contribution of each ray path may be further weighted to better simulate a beamformed ultrasound signal. Tracing many individual rays per transducer element is easily parallelizable on modern GPU computing architectures.
摘要翻译：诸如蒙特卡罗光线追踪之类的随机射线追踪方法可以适用于提供更有效且更真实的超声成像系统和方法。许多根据概率分布扰动的随机射线路径可能是直到他们收敛到正确的解决方案。新的表面厚度和粗糙度模型可以重现复杂的超声波相互作用，例如多次反射和折射。每个射线路径的贡献可以进一步加权以更好地模拟波束形成的超声信号。在现代GPU计算架构中，每个换能器元件追踪许多单独的射线很容易并行化。

33. 发明申请

WO2018024545A1 METHOD AND DEVICE FOR CHECKING AUTHENTICITY OF A HBBTV RELATED APPLICATION 审中-公开
标题翻译：用于检查HBBTV相关申请的真实性的方法和设备
公开(公告)号：WO2018024545A1
公开(公告)日：2018-02-08
申请号：PCT/EP2017/068773
申请日：2017-07-25
申请人： SMARDTV S.A.
发明人： DEPREZ, Olivier
IPC分类号： H04N21/4623 , H04N21/462 , H04N21/235 , H04N21/418 , H04N21/434 , H04N21/835
摘要： A conditional access module receives a multimedia stream transporting multimedia content and application data forming an application to be executed in relation to the multimedia content. At reception of the multimedia stream by the conditional access module, the application data is separated from the multimedia stream by an input filter included in the conditional access module. The application data comprise a current authentication code. The input filter forwards the application data with the current authentication code to a quarantine memory associated with an application checker included in the conditional access module. The application checker verifies the current authentication code by using a reference authentication code previously acquired by the conditional access module. Upon successful verification of the authentication code, the application data is retrieved from the quarantine memory and merged by a merging module with the multimedia content previously separated by the input filter. The merging module then outputs a checked processed multimedia stream for further processing by the multimedia receiver, which executes the verified application for enhancing the multimedia content.
摘要翻译：条件访问模块接收传输多媒体内容和应用程序数据的多媒体流，所述多媒体内容和应用程序数据形成要相对于多媒体内容执行的应用程序。在由条件访问模块接收到多媒体流时，应用数据通过条件访问模块中包括的输入过滤器与多媒体流分离。应用程序数据包括当前的认证码。输入过滤器将具有当前认证码的应用程序数据转发到与包含在条件访问模块中的应用程序检查器相关联的隔离存储器。应用程序检查器通过使用先前由条件访问模块获取的参考认证代码来验证当前认证代码。在成功验证认证码后，从隔离存储器检索应用数据，并由合并模块将先前由输入过滤器分离的多媒体内容合并。然后合并模块输出经检查的经处理的多媒体流以供多媒体接收器进一步处理，多媒体接收器执行经验证的应用程序以增强多媒体内容。

34. 发明申请

WO2017140842A1 METHODS AND SYSTEMS FOR ENABLING LEGAL-INTERCEPT MODE FOR A TARGETED SECURE ELEMENT 审中-公开
标题翻译：用于针对目标安全元件启用法律拦截模式的方法和系统
公开(公告)号：WO2017140842A1
公开(公告)日：2017-08-24
申请号：PCT/EP2017/053613
申请日：2017-02-17
申请人： NAGRAVISION S.A.
发明人： BENOIT, Bernard , FOURNIER, Jean-Claude , GAUTERON, Laurent , ZHAO, Yishan , FER, François
IPC分类号： H04L29/06 , H04L9/08
CPC分类号： H04L63/306 , H04L9/0838 , H04L63/06 , H04L63/205 , H04L2209/80 , H04W12/04
摘要： A secure encryption element negotiates cryptographic session keys with remote devices using randomly generated secret keys, and encrypts and decrypts data with the negotiated session keys during communication sessions with the remote devices. The secure encryption element receives and authenticates an intercept-mode command, and responsively negotiates a predictable cryptographic session key at least in part by: accessing a first key-negotiation parameter originating in a secure- encryption-element provider and a second key-negotiation parameter originating in a service provider; generating a pseudorandom secret key based on the first and second key-negotiation parameters; generating and sharing a first shared intermediate value based on the pseudorandom secret key; receiving a second shared intermediate value; generating the predictable cryptographic session key based on the pseudorandom secret key and the second shared intermediate value; and encrypting and decrypting data with the generated predictable cryptographic session key during a communication session with a remote device.
摘要翻译：安全加密元件使用随机生成的密钥与远程设备协商密码会话密钥，并且在与远程设备的通信会话期间使用协商的会话密钥加密和解密数据。安全加密元件接收并验证截取模式命令，并且响应式地至少部分地通过以下步骤来协商可预测密码会话密钥：访问源自安全加密元素提供者的第一密钥协商参数和第二密钥协商参数起源于服务提供者; 基于第一和第二密钥协商参数生成伪随机密钥; 基于所述伪随机密钥生成并共享第一共享中间值; 接收第二共享中间值; 基于所述伪随机密钥和所述第二共享中间值来生成所述可预测密码会话密钥; 以及在与远程设备的通信会话期间使用所生成的可预测加密会话密钥加密和解密数据。

35. 发明申请

WO2017137533A1 METHOD AND SYSTEM TO SHARE A SNAPSHOT EXTRACTED FROM A VIDEO TRANSMISSION 审中-公开
标题翻译：方法和系统以分享从视频传输提取的快照
公开(公告)号：WO2017137533A1
公开(公告)日：2017-08-17
申请号：PCT/EP2017/052949
申请日：2017-02-10
申请人： NAGRAVISION S.A.
发明人： HUNACEK, Didier , SCHAER, Olivier , THOMAS, Frédéric
IPC分类号： H04N21/433 , H04N21/475 , H04N21/4788 , H04L29/08
CPC分类号： H04N21/4331 , H04L67/2842 , H04N21/4756 , H04N21/4788
摘要： The present invention refers to the field of television experience in particular the simultaneous use of the mobile device and a television to share a user's experience. The present disclosure proposes a method to create a snapshot from a video transmission received by a receiver, said receiver being connected with a mobile device and having a screen output, said method comprising the steps of: receiving a video transmission by the receiver, converting by the receiver, the video transmission into a lower-bandwidth video transmission, sending the lower-bandwidth video transmission to the mobile device, receiving from the mobile device to the receiver, a command to execute a snapshot, producing by the receiver a snapshot from the video transmission, sending the snapshot to the mobile device.
摘要翻译：本发明涉及电视体验领域，尤其涉及移动设备和电视机同时使用以共享用户体验。本公开提出了一种从由接收机接收的视频传输创建快照的方法，所述接收机与移动设备连接并且具有屏幕输出，所述方法包括以下步骤：由接收机接收视频传输，通过所述接收器将所述视频传输转换为较低带宽的视频传输，将较低带宽的视频传输发送至所述移动设备，从所述移动设备接收所述接收器执行快照的命令，由所述接收器产生来自所述视频传输，将快照发送到移动设备。

36. 发明申请

WO2017137481A1 A REMOVABLE SECURITY DEVICE AND A METHOD TO PREVENT UNAUTHORIZED EXPLOITATION AND CONTROL ACCESS TO FILES 审中-公开
标题翻译：一种可移动的安全设备和一种防止未经授权的开发和控制访问文件的方法
公开(公告)号：WO2017137481A1
公开(公告)日：2017-08-17
申请号：PCT/EP2017/052826
申请日：2017-02-09
申请人： NAGRAVISION S.A.
发明人： BACHMANN, Julien , SARDA, Pierre
IPC分类号： G06F21/16 , G06F21/84
CPC分类号： G06F21/34 , G06F21/16 , G06F21/6272 , G06F2221/0733 , H04N1/32
摘要： A removable security device configured to prevent unauthorized exploitation of files, connectable with a host device, the removable security device comprising a central processor, an operating system, a graphic processor, memories and a communication link configured to exchange data with the host device. The removable security device further comprises an identification module for verifying conformity of at least one user credential received from the host device via the communication link. The operating system enables through a remote desktop agent remote access to at least one file and executes a file processing application with the at least one file. The operating system, the remote desktop agent and the file processing application are stored in a non-volatile memory of the removable security device. The graphic processor generates displayable frames corresponding to the execution of the application with the file. A watermarking module coupled to the graphic processor inserts additional data into the displayable frames, said additional data forming a watermark generated on all or part of the displayable frame. The additional data allows retrieving at least the identifier of the removable security device. The communication link transmits the watermarked displayable frames to the host device.
摘要翻译：可移除安全设备被配置为防止未授权利用可与主机设备连接的文件，所述可移除安全设备包括中央处理器，操作系统，图形处理器，存储器和通信链路，所述通信链路被配置为与主机设备交换数据。可移除安全设备还包括识别模块，用于验证经由通信链路从主机设备接收的至少一个用户凭证的符合性。操作系统通过远程桌面代理实现对至少一个文件的远程访问，并用该至少一个文件执行文件处理应用程序。操作系统，远程桌面代理和文件处理应用程序存储在可移动安全设备的非易失性存储器中。图形处理器生成对应于应用程序与文件的执行的可显示帧。耦合到图形处理器的加水印模块将附加数据插入到可显示帧中，所述附加数据形成在全部或部分可显示帧上生成的水印。附加数据允许至少检索可移动安全设备的标识符。通信链路将带水印的可显示帧传输到主机设备。

37. 发明申请

WO2017036996A1 METHOD AND DEVICE TO TRANSFER A VIDEO STREAM BETWEEN A HOST DEVICE AND AN ELECTRONIC DESCRAMBLING DEVICE 审中-公开
标题翻译：用于传输主机和电子装置之间的视频流的方法和装置
公开(公告)号：WO2017036996A1
公开(公告)日：2017-03-09
申请号：PCT/EP2016/070274
申请日：2016-08-29
申请人： NAGRAVISION S.A.
发明人： GREMAUD, Fabien
IPC分类号： H04N21/418 , H04N21/436 , H04N21/4405
CPC分类号： H04N21/4181 , H04N21/43607 , H04N21/4405
摘要： The present invention refers to the field of video data transfer to a USB dongle. it is proposed a method to transfer a video stream originating from a one producer, having a producer ID, from a host device to an electronic descrambling device in charge of descrambling said at least one stream, said host device comprising a controller comprising a bulk pipe out and a bulk pipe in transfer, comprising the steps of : - for each producer, defining a chunk of data from the video stream, - forming a chain of out transfer, the chain of out transfer comprising a chain out header (oqH) linked with a plurality of chain out descriptors (oqTD), the first chain out descriptor pointing to a out description packet containing the at least one producer ID, the second and subsequent chain out descriptor pointing to the chunk of data, each chunk of data being of a particular producer, and the last chain out descriptor being configured to generate an interrupt, - forming a chain of in transfer, the chain of in transfer comprising a chain in header (iqH) linked with a plurality of chain in descriptors (iqTD), each chain in descriptor pointing to a descrambled chunk of data, - requesting the controller to process the chain, - receiving the description packet by the electronic descrambling device and identifying key data associated with the at least one chunk, - using the key data to descramble the data chunk, - receiving by the controller, via the bulk pipe in the descrambled chunk, - triggering an interrupt by the reception of the last descrambled chunk.
摘要翻译：本发明涉及视频数据传送到USB加密狗的领域。提出了一种将源自具有制作人ID的一个制作者的视频流从主机设备传送到负责解扰所述至少一个流的电子解扰设备的方法，所述主机设备包括控制器，该控制器包括主体管包括以下步骤： - 对于每个制作者，定义来自视频流的数据块， - 形成一个输出链，所述链输出链包括链出头（oqH）链接具有多个链出描述符（oqTD），第一链出描述符指向包含至少一个生成器ID的外部描述分组，第二和后续链出描述符指向数据块，每个数据块为特定生产者，以及最后链出描述符被配置为产生中断， - 形成传送链，所述传送链包括与多个链接链接的标题链（iqH） n描述符（iqTD）中，描述符中的每个链指向解扰的数据块， - 请求所述控制器处理所述链， - 由所述电子解扰设备接收所述描述包，以及识别与所述至少一个块相关联的密钥数据， - 使用密钥数据解扰数据块， - 由控制器通过解扰块中的批量管道接收 - 通过接收最后一个解扰的块来触发中断。

38. 发明申请

WO2016180914A1 HOME-AUTOMATION SYSTEM 审中-公开
标题翻译：家庭自动化系统
公开(公告)号：WO2016180914A1
公开(公告)日：2016-11-17
申请号：PCT/EP2016/060639
申请日：2016-05-12
申请人： NAGRAVISION S.A.
发明人： MOLAC, Laurent , SERVIGNAT, David , REILLON, Guillaume , STRANSKY-HEILKRON, Philippe
IPC分类号： H04N21/422 , H04N21/442 , H04N21/436 , H04N21/433 , H04N21/41
CPC分类号： H04N21/42201 , H04N21/4131 , H04N21/42202 , H04N21/4331 , H04N21/4333 , H04N21/43615 , H04N21/44218
摘要： The present invention relates to a system and a device for automatically detecting certain behaviours of an occupant or occupants of a particular designated space, usually within the home environment, and to perform action depending on the detected behaviour. The behaviours may be detected using sensors associated with standard electronic equipment available in most homes, like media content receivers for example. According to one embodiment of the invention a set-top box comprises a sensor to monitor the viewer and to analyse the viewer's behaviour in order to estimate when the viewer loses interest in the content. The set-top box further comprises a time shift buffer for buffering the received content and a mark inserter module which is configured to place a mark in the content within the time-shift buffer at places where the viewer is deemed to have lost concentration, thereby allowing for the viewer to conveniently replay the content from where he lost interest. According to another embodiment, there is provided a system comprising a plurality of sensors associated with a plurality of appliances or electronic devices within the household. The system is configured to take appropriate actions depending on how the information received from the sensor or network of sensors is interpreted.
摘要翻译：本发明涉及一种用于自动检测通常在家庭环境中的特定指定空间的乘客或乘客的某些行为的系统和装置，并且根据检测到的行为来执行动作。可以使用与大多数家庭中可用的标准电子设备相关联的传感器来检测行为，例如媒体内容接收器。根据本发明的一个实施例，机顶盒包括用于监视观看者并且分析观众的行为以便估计观众何时失去对内容的兴趣的传感器。机顶盒还包括用于缓冲接收到的内容的时移缓冲器和标记插入器模块，该标记插入器模块被配置为在观察者被认为已经失去浓度的地方在时移缓冲器内的内容中放置标记，从而允许观众方便地从他失去兴趣的地方重播内容。根据另一实施例，提供了一种系统，其包括与家庭内的多个家用电器或电子设备相关联的多个传感器。该系统被配置为根据如何解释从传感器或传感器网络接收的信息来采取适当的动作。

39. 发明申请

WO2016071507A1 MEDIA CONTENT RECEPTION AND PLAYBACK CONTROL 审中-公开
标题翻译：媒体内容接收和回放控制
公开(公告)号：WO2016071507A1
公开(公告)日：2016-05-12
申请号：PCT/EP2015/075956
申请日：2015-11-06
申请人： NAGRAVISION S.A.
发明人： HEDHLI, Saber , BELLOCCHIO, Marc
IPC分类号： H04N21/418 , H04N21/4367 , H04N21/44 , H04N21/81 , G06Q30/06 , H04N21/472
CPC分类号： H04N21/4333 , G06Q30/06 , H04N21/41 , H04N21/4104 , H04N21/43615 , H04N21/4367 , H04N21/44016 , H04N21/47202
摘要： A receiving device and a method for controlling playback of a media content stream, the receiving device comprising a media player and being associated with a conditional access module is configured to receive, process and play back the media content stream. The receiving device comprises a service selection module configured to receive a user command during playback of a current media content stream and to forward the user command to a media content stream input selector included in the conditional access module. The media content stream input selector is configured to stop reception of the current media content stream and to switch to an input receiving an additional media content stream at reception of the user command, the additional content media stream containing at least one chunk to be injected into the current media content stream, said at least one chunk being configured to pause playback of the current media stream at a time point following reception of the user command.
摘要翻译：一种用于控制媒体内容流的重放的接收装置和方法，包括媒体播放器并与条件访问模块相关联的接收装置被配置为接收，处理和播放媒体内容流。接收设备包括服务选择模块，其被配置为在播放当前媒体内容流期间接收用户命令，并将用户命令转发到包括在条件访问模块中的媒体内容流输入选择器。媒体内容流输入选择器被配置为停止接收当前媒体内容流并且在接收用户命令时切换到接收附加媒体内容流的输入，所述附加内容媒体流包含要注入的至少一个组块所述当前媒体内容流，所述至少一个组块被配置为在接收到所述用户命令之后的时间点暂停所述当前媒体流的播放。

40. 发明申请

WO2016030437A1 INTELLIGENT CONTENT QUEUING FROM A SECONDARY DEVICE 审中-公开
标题翻译：智能内容来自二级设备的排队
公开(公告)号：WO2016030437A1
公开(公告)日：2016-03-03
申请号：PCT/EP2015/069584
申请日：2015-08-27
申请人： NAGRAVISION S.A.
发明人： JENKINS, David
IPC分类号： H04N21/482 , H04N21/472 , H04N21/442 , H04N21/44 , H04N21/436 , H04N21/41 , H04N21/422
CPC分类号： G06F3/0482 , G06F3/0488 , H04N21/4126 , H04N21/42224 , H04N21/43615 , H04N21/44016 , H04N21/44222 , H04N21/472 , H04N21/4825
摘要： Example embodiments provide systems and methods for managing intelligent content queuing from a secondary device for content delivery to a primary device. A content queuing system on the secondary device generates and displays a playlist interface on the secondary device. A selection of a content item to be added to a playlist is received. The content queuing system determines that addition of the content item causes a live content item to overlap with an on-demand content item on the playlist. As a result, the content queuing system creates at least two segments for the on-demand content item. The live content item is positioned between the first and a second segment on the playlist. The first segment is scheduled to end at a start time of the live content item and the second segment is scheduled to begin at an ending time of the live content item.
摘要翻译：示例性实施例提供用于管理从辅助设备排队的智能内容以用于内容传送到主设备的系统和方法。辅助设备上的内容排队系统在辅助设备上生成并显示播放列表界面。接收要添加到播放列表的内容项目的选择。内容排队系统确定内容项目的添加导致实况内容项目与播放列表上的点播内容项目重叠。结果，内容排队系统为按需内容项目创建至少两个片段。实况内容项目位于播放列表上的第一和第二片段之间。第一段被安排在实时内容项目的开始时间结束，并且第二段被调度为在实况内容项目的结束时间开始。

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