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51. 发明授权

US09805367B2 System and method to record encrypted content with access conditions 有权
公开(公告)号：US09805367B2
公开(公告)日：2017-10-31
申请号：US15187830
申请日：2016-06-21
申请人： Nagravision S.A.
发明人： Corinne Le Buhan , Christophe Nicolas , Joel Conus , Joel Wenger
IPC分类号： G06Q20/38 , G01D4/00 , G01R21/133 , G01F1/00 , G06Q50/06 , G01R22/06 , H02B1/06 , G01R21/00 , G01R11/00 , G01R11/04 , H02B1/015
CPC分类号： G06Q20/382 , G01D4/00 , G01D4/002 , G01D4/008 , G01F1/00 , G01R11/00 , G01R11/04 , G01R19/25 , G01R21/00 , G01R21/133 , G01R22/065 , G06Q50/06 , G08C15/06 , H02B1/015 , H02B1/06 , H02B1/063 , H04L9/00 , H04Q9/00 , H04Q2209/60 , Y02B90/241 , Y02B90/247 , Y04S20/32 , Y04S20/50
摘要： A secure detachable utility monitoring device is disclosed, to be appended to a utility metering apparatus for controlling at least one utility usage consumption. A detachable metering monitoring device of at least one embodiment includes: a usage reading interface to acquire a utility consumption value metered by the utility meter; a first memory to store at least a unique identifier ID and a personal key, both pertaining to the device; a crypto processor to generate a cryptogram from information data comprising at least the utility consumption value, the cryptogram being encrypted with the personal key; a message generator to generate an information message including at least the cryptogram and the unique identifier ID; and a communication network interface including a sending unit to send the information message to a remote management center.

52. 发明申请

US20170230703A1 Security device for Pay-TV receiver decoder 有权
公开(公告)号：US20170230703A1
公开(公告)日：2017-08-10
申请号：US15498109
申请日：2017-04-26
申请人： NAGRAVISION S.A.
发明人： Antoine BURCKARD
IPC分类号： H04N21/418 , H04N21/4367
CPC分类号： H04N21/4181 , H04N7/163 , H04N21/42684 , H04N21/4367 , H04N21/4623 , H04N21/47211 , H04W4/80
摘要： The aim of the present invention is to ensure that a security module SC or CAM is used with an authorized receiver device. A security device for Pay-TV receiver decoder, in charge of processing the security messages and to extract the keys or rights from the security messages, this security device comprising a memory to store at least one reference identifier of the receiver/decoder, characterized in that, it further comprises a wireless reader to read a wireless tag containing a receiver/decoder identifier with which it is connected, and means to compare this identifier with the reference identifier, said security device modifying the processing of the security messages in function of the comparison result.

53. 发明授权

US09730057B2 Apparatus for managing members of at least one group of decoders having access to broadcast data 有权
公开(公告)号：US09730057B2
公开(公告)日：2017-08-08
申请号：US14752437
申请日：2015-06-26
申请人： NAGRAVISION S.A.
发明人： Guy Moreillon , Alexandre Karlov
IPC分类号： G06F21/00 , H04L29/06 , H04L9/08 , H04W12/00 , G11B20/00 , H04N7/167 , H04N21/258 , H04N21/266 , H04N21/418 , H04N21/6334 , H04N21/2347 , H04N21/4405 , H04L12/18
CPC分类号： H04W12/00 , G11B20/00086 , G11B20/0021 , H04L9/0833 , H04L9/0836 , H04L9/0891 , H04L2209/601 , H04N7/1675 , H04N21/2347 , H04N21/2585 , H04N21/26606 , H04N21/4182 , H04N21/4405 , H04N21/63345
摘要： A technique to manage members of a group of decoders having access to broadcast data, each group member sharing a common broadcast encryption scheme (BES) comprising the steps of, in a stage for a decoder to become a group member, receiving keys pertaining to the position in the group according to the BES, receiving a current group access data comprising a current group access key, and in a stage of accessing broadcast data, using the current group access data to access the broadcast data, and in a stage of renewing the current group access key, sending a first group message comprising at lease a next group access key encrypted so that only non-revoked decoders can access it, said group message being further encrypted by the current group access key, updating the current group access key with the next group access key.

54. 发明申请

US20170161472A1 METHOD TO DETECT CLONED SOFTWARE 有权
公开(公告)号：US20170161472A1
公开(公告)日：2017-06-08
申请号：US15438381
申请日：2017-02-21
申请人： NAGRAVISION S.A.
发明人： Jean-Bernard Fischer , Patrik Marcacci , Christian Schwarz , Brecht Wyseur
IPC分类号： G06F21/16 , G06F17/30 , G06F21/64
CPC分类号： G06F21/16 , G06F17/30345 , G06F21/121 , G06F21/64 , G06F2221/0711 , H04N21/25816 , H04N21/42684 , H04N21/44236 , H04N21/6334 , H04N21/6377
摘要： Method to detect cloned software being used on a client user unit. An initialization phase comprises: defining a tag value as being equal to an initial random value, opening a new record storing the tag value and introducing the tag value into the client user unit. An operating phase comprises: preparing a client message comprising the request and a value depending on the tag value; sending the client message to the server; and checking if the tag value of the client message is correct with respect to the stored tag value. If they do not match, the requested service is denied. If they do match, the method sends a server message to the user unit; updates the tag value with a new tag value; and stores the new tag value on the server and user unit.

55. 发明授权

US09602166B2 Configuration method of a multimedia system 有权
公开(公告)号：US09602166B2
公开(公告)日：2017-03-21
申请号：US15221005
申请日：2016-07-27
申请人： NAGRAVISION S.A.
发明人： Frederic Thomas
IPC分类号： H04B5/00 , H04L29/08 , H04W76/02 , H04W4/00
CPC分类号： H04B5/0031 , G06F9/54 , G06Q20/3278 , G06Q20/385 , G06Q20/425 , G06Q30/0637 , H04B7/15 , H04L41/50 , H04L47/70 , H04L67/34 , H04L69/08 , H04N5/4403 , H04N21/2543 , H04N21/4126 , H04N21/41407 , H04N21/4184 , H04N21/4222 , H04N21/42221 , H04N21/43615 , H04N21/43637 , H04N21/47815 , H04N21/485 , H04W4/50 , H04W4/80 , H04W76/10
摘要： A configuration method of a multimedia system comprising a first device and at least one adjacent device having a mechanism to communicate with the first device. The first device comprises a mechanism to read/write data from/to an NFC data carrier. The method comprises a set-up phase and an exploitation phase.

56. 发明授权

US09538222B2 Device for the allocation and management of subscriptions for the reception of broadcast products 有权
标题翻译：用于接收广播产品的订阅的分配和管理的装置
公开(公告)号：US09538222B2
公开(公告)日：2017-01-03
申请号：US13927986
申请日：2013-06-26
申请人： NAGRAVISION S.A.
发明人： Guy Moreillon
IPC分类号： H04N7/167 , H04N21/266 , H04N7/16 , H04N21/4623
CPC分类号： H04N21/266 , H04N7/162 , H04N21/26606 , H04N21/4623
摘要： A device to reduce bandwidth necessary for renewal of subscriptions for reception of broadcast services including: defining a plurality of sets of subscriber identification numbers, each set being associated with a product; splitting a set of subscriber identification numbers into groups of subscribers; searching for an available subscriber identification number related to the desired product at the time of initialization of a new subscriber; confirming that an inhibit duration has elapsed between the end of the previous subscription and the start of the new subscription; sending an initialization message to the new subscriber addressed with his unique identification address and containing the subscriber identification number of, and rights to, his product; preparing a group rights renewal message for the product to the group containing the subscriber identification number, this message comprising the group header containing this subscriber and a compressed bitmap for individually addressing each of the group members.
摘要翻译：一种用于减少用于接收广播服务的订阅的更新所需的带宽所需的带宽的设备，包括：定义多组订户标识号，每组与产品相关联; 将一组用户标识号分成一组订户; 在新用户初始化时搜索与所需产品相关的可用用户识别号码; 确认在先前订阅结束和新订阅的开始之间已经过去禁止持续时间; 发送初始化消息给新用户，用他唯一的标识地址寻址并包含他的产品的用户标识号和权限; 为包含该用户标识号的组准备该产品的组版本更新消息，该消息包括包含该订户的组头，以及用于单独寻址每个组成员的压缩位图。

57. 发明授权

US09496843B1 Smart volume guard 有权
标题翻译：智能音量防护
公开(公告)号：US09496843B1
公开(公告)日：2016-11-15
申请号：US14832822
申请日：2015-08-21
申请人： Nagravision S.A.
发明人： Prabhu Chawandi
IPC分类号： H03G7/00 , H03G11/00
CPC分类号： H03G7/007 , H03G3/3026 , H04R5/04 , H04R29/001 , H04R2430/01
摘要： Aspects of the present disclose involve a method, a device, and a system comprising a processor and a machine-readable storage medium storing a set of instructions for providing audio level safeguards for output audio signals. In example embodiments, the method includes accessing a most recent audio level of an audio output device and determining whether the most recent audio level transgresses a threshold value. Based on determining the most recent audio level transgresses the threshold value, a current audio level output by the audio output device is set to the threshold value. Thereafter, the current audio level is gradually increased, at repeated time intervals, until it reaches the most recent audio level.
摘要翻译：本公开的方面涉及一种方法，设备和包括处理器和机器可读存储介质的系统，所述处理器和机器可读存储介质存储用于为输出音频信号提供音频电平保护的一组指令。在示例实施例中，该方法包括访问音频输出设备的最新音频电平并确定最近的音频电平是否超过阈值。基于确定最近的音频电平越过阈值，由音频输出装置输出的当前音频电平被设置为阈值。此后，当前的音频电平以重复的时间间隔逐渐增加，直到达到最近的音频电平。

58. 发明授权

US09432709B2 System and method to prevent manipulation of transmitted video data 有权
标题翻译：防止传输视频数据的操纵的系统和方法
公开(公告)号：US09432709B2
公开(公告)日：2016-08-30
申请号：US13067923
申请日：2011-07-07
申请人： André Kudelski , Christophe Nicolas
发明人： André Kudelski , Christophe Nicolas
IPC分类号： H04N7/173 , H04N21/254 , H04N21/4363 , H04N21/4367 , H04N21/835 , H04N7/167
CPC分类号： H04N21/2541 , H04N21/43635 , H04N21/43637 , H04N21/4367 , H04N21/835
摘要： Example embodiments relate to a system to prevent manipulation of transmitted video data including an Integrated Receiver Decoder (IRD) receiving audio/video data and a display device. The IRD may include a device to transmit an HDMI compliant audio/video stream toward the display device. The system may further include a device to add an over-encryption layer to the HDMI/HDCP stream before reaching the display device and a device to remove the added encryption layer so as to recover the HDMI/HDCP stream, before processing the HDMI/HDCP stream by the display device.
摘要翻译：示例实施例涉及防止对包括接收音频/视频数据的集成接收器解码器（IRD）和显示设备的传输视频数据的操纵的系统。 IRD可以包括向显示设备发送HDMI兼容音频/视频流的设备。该系统可以进一步包括在到达显示设备之前向HDMI / HDCP流添加过加密层的设备和在处理HDMI / HDCP之前移除添加的加密层以恢复HDMI / HDCP流的设备流显示设备。

59. 发明授权

US09432089B2 Configuration method of a multimedia system 有权
公开(公告)号：US09432089B2
公开(公告)日：2016-08-30
申请号：US14959792
申请日：2015-12-04
申请人： NAGRAVISION S.A.
发明人： Frederic Thomas
IPC分类号： H04B5/00 , G06F9/54 , G06Q20/32 , G06Q20/38 , G06Q20/42 , G06Q30/06 , H04B7/15 , H04L12/24 , H04L12/911 , H04L29/06 , H04N5/44 , H04N21/2543 , H04N21/41 , H04N21/414 , H04N21/422 , H04N21/4363 , H04N21/478 , H04N21/485 , H04W4/00 , H04W76/02 , H04N21/418 , H04N21/436 , H04L29/08
CPC分类号： H04B5/0031 , G06F9/54 , G06Q20/3278 , G06Q20/385 , G06Q20/425 , G06Q30/0637 , H04B7/15 , H04L41/50 , H04L47/70 , H04L67/34 , H04L69/08 , H04N5/4403 , H04N21/2543 , H04N21/4126 , H04N21/41407 , H04N21/4184 , H04N21/4222 , H04N21/42221 , H04N21/43615 , H04N21/43637 , H04N21/47815 , H04N21/485 , H04W4/50 , H04W4/80 , H04W76/10
摘要： A configuration method of a multimedia system comprising a first device and at least one adjacent device having a mechanism to communicate with the first device. The first device comprises a mechanism to read/write data from/to an NFC data carrier. The method comprises a set-up phase and an exploitation phase.

60. 发明授权

US09392296B2 Media decoder and a decoding method allowing for the media decoder to be traced 有权
标题翻译：媒体解码器和允许跟踪媒体解码器的解码方法
公开(公告)号：US09392296B2
公开(公告)日：2016-07-12
申请号：US13363859
申请日：2012-02-01
申请人： Yann Bodo , Corinne Le Buhan
发明人： Yann Bodo , Corinne Le Buhan
IPC分类号： H04N7/26 , H04N19/467 , H04N19/176 , H04N19/122
CPC分类号： H04N19/467 , H04N19/122 , H04N19/176
摘要： The present invention aims to overcome drawbacks of conventional content tracing methods requiring re-processing the content before its broadcast with a significant side channel transmission i.e. extra processing, storage and/or bandwidth at the distribution side, or alternately a complex signal processing implementation at the receiver side that has to be protected against hackers attacks. An efficient system and method consists of tracing and uniquely identifying decoders of a video stream wherein the decoders implement at least one variant of a standard image decompression algorithm and wherein the resulting decompressed image approximation varies according to the decoders' identifier.
摘要翻译：本发明旨在克服传统内容跟踪方法的缺点，需要在具有重要的侧信道传输的广播之前重新处理内容，即在分发侧的额外处理，存储和/或带宽，或者替代地，复杂信号处理实现接收方必须防范黑客攻击。有效的系统和方法包括跟踪和唯一地识别视频流的解码器，其中解码器实现标准图像解压缩算法的至少一个变体，并且其中所得到的解压缩图像近似根据解码器的标识符而变化。

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