公开(公告)号：WO2021249181A1

公开(公告)日：2021-12-16

申请号：PCT/CN2021/095806

申请日：2021-05-25

Applicant: 北京沃东天骏信息技术有限公司 ,  北京京东尚科信息技术有限公司

Inventor： 栗鸿宇 ,  申作军

IPC: H04N21/6334 ,  G06F21/6245 ,  H04N21/63345 ,  H04N7/18

Abstract: 本公开提供一种用于保护隐私的方法、装置和系统。用于保护隐私的方法包括：获取由摄像头采集的视频信息；对视频信息进行视频分割处理，以得到原始视频帧；检测原始视频帧中是否包括隐私信息；若原始视频帧中包括隐私信息，则对原始视频帧中包括隐私信息的区域进行掩模处理以生成被掩模帧，并将被掩模帧作为输出视频帧；若原始视频帧中不包括隐私信息，则将原始视频帧作为输出视频帧。

公开(公告)号：WO2020101140A1

公开(公告)日：2020-05-22

申请号：PCT/KR2019/008709

申请日：2019-07-15

Applicant: 삼성전자 주식회사

Inventor： 황준호 ,  최호석

IPC: H04N21/475 ,  H04N21/4415 ,  H04N21/431 ,  H04N21/6334

Abstract: 제어 장치로부터 영상 표시 장치의 동작을 제어하는 제어 명령을 수신하는 통신부, 하나 이상의 인스트럭션들을 저장하는 메모리 및 메모리에 저장된 하나 이상의 인스트럭션들을 실행하는 프로세서를 포함하고, 프로세서는 하나 이상의 인스트럭션들을 실행함으로써, 제어 장치 사용자에 대응하는 제1 사용자 정보 및 제어 장치에서의 사용자 인증 상태를 나타내는 인증 상태 정보를 수신하고, 제어 명령이 인증을 필요로 하는 동작 요청을 포함하는 경우, 제1 사용자 정보, 인증 상태 정보 및 영상 표시 장치의 사용자에 대응하는 제2 사용자 정보에 기초하여, 인증을 수행하고, 제어 명령에 따라 동작을 수행하는, 영상 표시 장치가 개시된다.

公开(公告)号：WO2018175623A1

公开(公告)日：2018-09-27

申请号：PCT/US2018/023615

申请日：2018-03-21

Applicant: INTERTRUST TECHNOLOGIES CORPORATION ,  CUGI, Guido ,  LACY, Jack ,  NAGAO, Yutaka ,  CHAVANNE, Pierre

Inventor： CUGI, Guido ,  LACY, Jack ,  NAGAO, Yutaka ,  CHAVANNE, Pierre

IPC: H04N21/4627 ,  H04N21/4405 ,  H04N21/266 ,  H04N21/6334 ,  H04N21/4623

Abstract: This disclosure relates to, among other things, systems and methods for managing the secure management and distribution of electronic content over broadcast and/or broadband communication channels. Certain embodiments disclosed herein may allow for implementation of a digital rights management service in connection with bidirectional communication channels and/or unidirectional communication channels, such as a broadcast signal. Various embodiments may allow for the generation and/or transmission of a digital rights management license in a field included in a broadcast signal. The license may be used by a client device to securely manage a received broadcast signal in accordance with associated rules and/or rights.

公开(公告)号：WO2018119383A1

公开(公告)日：2018-06-28

申请号：PCT/US2017/068163

申请日：2017-12-22

Applicant: ECHOSTAR TECHNOLOGIES L.L.C.

Inventor： BEALS, William Michael ,  HAMRICK, John

IPC: H04N21/6334 ,  H04N21/418 ,  H04N21/426 ,  H04N21/436

Abstract: Described herein are systems and methods for securing transmission of content from a smart card in a host television receiver to a client television receiver. The smart card can receive the encrypted content stream from the television service provider, decrypt the content stream with the global network key, identify the client television receiver as the destination of the content stream, generate a unique key specific to the content stream, encrypt the unique key with a local key known to the client television receiver, encrypt the content stream with the unique key, and transmit the encrypted content stream along with the encrypted unique key to the client television receiver. The client television receiver can then receive the encrypted content stream and the encrypted unique key, decrypt the unique key, decrypt the content stream with the unique key, and transmit the content stream to a display device of the client television receiver.

公开(公告)号：WO2017094645A1

公开(公告)日：2017-06-08

申请号：PCT/JP2016/085118

申请日：2016-11-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MISRA, Kiran Mukesh ,  DESHPANDE, Sachin G.

IPC: H04N21/6334 ,  H04L12/70 ,  H04N21/47

CPC classification number: H04N21/6334 ,  H04N21/478 ,  H04N21/8545 ,  H04N21/8586

Abstract: A device may be configured to signal accessibility characteristics associated with an application associated with a video and/or audio presentation. In some examples, accessibility characteristics may include levels of accessibility based on an established accessibility guideline. A device may signal a level of conformance. A device may signal accessibility with respect to a defined group. A receiver device may parse a syntax element indicating accessibility of an application and perform an action based on the accessibility of an application.

Abstract translation: 设备可以被配置为发信号通知与与视频和/或音频呈现相关联的应用相关联的可访问性特征。 在一些示例中，可访问性特征可以包括基于已建立的可访问性准则的可访问性级别。 设备可以表示一致性水平。 设备可以用信号通知关于定义的组的可访问性。 接收机设备可以解析指示应用的可访问性的语法元素并且基于应用的可访问性来执行动作。

公开(公告)号：WO2016126385A1

公开(公告)日：2016-08-11

申请号：PCT/US2016/012886

申请日：2016-01-11

Applicant: QUALCOMM INCORPORATED

Inventor： MANDYAM, Giridhar Dhati

IPC: H04N21/2347 ,  H04N21/266 ,  H04N21/4405 ,  H04N21/6334 ,  H04N21/845

CPC classification number: H04W12/04 ,  G06F21/10 ,  G06F2221/0753 ,  H04L9/0891 ,  H04L2463/101 ,  H04N21/2347 ,  H04N21/26613 ,  H04N21/4405 ,  H04N21/63345 ,  H04N21/8456 ,  H04W12/02 ,  H04W12/06

Abstract: A method, comprising: receiving an encrypted segment of media data with an encrypted segment key over a unidirectional over-the-air (OTA) broadcast channel; providing an attestation request to an authenticator; receiving an attestation response from the authenticator based on an interaction with hardware to authenticate a user; decrypting, after receiving the attestation response, the encrypted segment of media data using a segment key to generate a decrypted segment of media data, wherein the segment key is based on the encrypted segment key.

Abstract translation: 一种方法，包括：通过单向无线（OTA）广播信道以加密分段密钥接收加密的媒体数据段; 向认证者提供认证请求; 基于与硬件的交互来接收来自认证者的认证响应以认证用户; 在接收到认证响应之后，使用分段密钥对媒体数据的加密分段进行解密，以生成解密的媒体数据段，其中分段密钥基于加密分段密钥。

公开(公告)号：WO2016120619A1

公开(公告)日：2016-08-04

申请号：PCT/GB2016/050177

申请日：2016-01-27

Applicant: BRITISH BROADCASTING CORPORATION

Inventor： POOLE, Chris ,  EARNSHAW, Nigel

IPC: H04N21/835 ,  H04N21/2389 ,  H04N21/2362 ,  H04N21/236 ,  H04N21/6334 ,  H04N21/434 ,  H04N21/442 ,  H04N21/443

CPC classification number: H04N21/835 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/23892 ,  H04N21/4345 ,  H04N21/4348 ,  H04N21/44236 ,  H04N21/4433 ,  H04N21/63345

Abstract: An encoder for encoding an MPEG transport stream of MPEG sections comprises means for processing the MPEG sections using a hash function to provide multiple hash outputs each hash output being associated with one or more MPEG sections. The hash outputs and corresponding section identifying information are signed using a private key corresponding to a public key available at receivers to produce signatures. The hash output section identifying information and signatures are then coded into one or more MPEG sections themselves which are designated as signature MPEG sections. The signature MPEG sections and MPEG transport stream are broadcast together. A receiver is able to verify using the signature MPEG sections that the MPEG transport stream has been provided by a known source and has not been tampered with.

Abstract translation: 用于编码MPEG部分的MPEG传输流的编码器包括用于使用散列函数处理MPEG部分以提供多个散列输出的装置，每个散列输出与一个或多个MPEG部分相关联。 哈希输出和相应的部分识别信息使用与在接收机可用的公共密钥相对应的私钥来签名以产生签名。 然后，哈希输出部分识别信息和签名被编码成被指定为签名MPEG部分的一个或多个MPEG部分本身。 签名MPEG部分和MPEG传输流一起广播。 接收机能够使用签名MPEG部分验证MPEG传输流已经由已知来源提供并且未被篡改。

公开(公告)号：WO2015171454A1

公开(公告)日：2015-11-12

申请号：PCT/US2015/028780

申请日：2015-05-01

Applicant: ARRIS ENTERPRISES, INC.

Inventor： CHAN, Tat Keung ,  MEDVINSKY, Alexander ,  MORONEY, Paul

IPC: H04N21/266 ,  H04N21/6334

CPC classification number: H04L63/0823 ,  G06F21/10 ,  H04L63/0457 ,  H04L63/062 ,  H04L63/068 ,  H04N21/26613 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/6334

Abstract: A method of provisioning DRM credentials on a client device, comprising receiving DRM credentials at an update server from a key generation system, the DRM credentials having been encrypted by the key generation system, receiving a DRM credential request from a client device, the DRM credential request comprising a digital signature, a device class certificate, and an authorization token, authenticating the DRM credential request by validating the digital signature and the device class certificate, extracting and validating the authorization token, and providing the DRM credentials to the client device.

Abstract translation: 一种在客户端设备上提供DRM凭证的方法，包括从密钥生成系统在更新服务器处接收DRM凭证，已由密钥生成系统加密的DRM凭证，从客户端设备接收DRM凭证请求，DRM证书 请求，包括数字签名，设备类证书和授权令牌，通过验证数字签名和设备类证书，提取和验证授权令牌，以及向客户端设备提供DRM凭证来认证DRM凭证请求。

公开(公告)号：WO2015130499A1

公开(公告)日：2015-09-03

申请号：PCT/US2015/016003

申请日：2015-02-16

Applicant: ALCATEL LUCENT

Inventor： WANG, Shengqiang ,  SHARMA, Ranjan

IPC: H04N21/258 ,  H04N21/61 ,  H04N21/6334 ,  H04N21/643 ,  H04N21/4627 ,  H04N21/2347 ,  H04N21/4405 ,  H04N21/6405 ,  H04N21/436 ,  H04N21/254 ,  H04N21/266

CPC classification number: H04N21/64753 ,  H04L9/0833 ,  H04L9/16 ,  H04L12/185 ,  H04L63/065 ,  H04N21/2347 ,  H04N21/2396 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/26613 ,  H04N21/43615 ,  H04N21/437 ,  H04N21/438 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/6125 ,  H04N21/6175 ,  H04N21/63345 ,  H04N21/6405 ,  H04N21/64322 ,  H04W4/08 ,  H04W88/12

Abstract: Systems and methods that provide different levels of Internet Protocol Television (IPTV) services on Wi-Fi networks utilizing concurrent multicast streams. One embodiment comprises a Wi-Fi Access Point (AP) that identifies IPTV channel subscription information for users of Wi-Fi client devices. The AP utilizes multiple Group Temporal Keys (GTKs) to concurrently encrypt and multicast different IPTV channels, and provides the appropriate GTKs to the client devices based on the subscription information to allow different users of the Wi-Fi client devices to receive different packages of IPTV channels.

Abstract translation: 使用并发多播流在Wi-Fi网络上提供不同级别的互联网协议电视（IPTV）服务的系统和方法。 一个实施例包括识别Wi-Fi客户端设备的用户的IPTV频道订阅信息的Wi-Fi接入点（AP）。 AP利用多个组时间密钥（GTK）同时加密和组播不同的IPTV频道，并根据订阅信息向客户端设备提供适当的GTK，以允许Wi-Fi客户端设备的不同用户接收不同的IPTV包 通道。

公开(公告)号：WO2014173700A1

公开(公告)日：2014-10-30

申请号：PCT/EP2014/057342

申请日：2014-04-11

Applicant: NAGRAVISION S.A.

Inventor： HUNACEK, Didier ,  TRAN, Minh Son ,  SARDA, Pierre

IPC: H04N21/8355 ,  H04N21/8358 ,  H04N21/4405 ,  H04N21/6334

CPC classification number: H04N21/8358 ,  G06T1/0092 ,  G06T2201/0064 ,  H04N21/4405 ,  H04N21/63345 ,  H04N21/8355

Abstract: The aim of the present invention is to enforce the watermarking on a content received by a client device, in particular to uncompressed video content. The present invention concerns a method to watermark an uncompressed content received at a client device in a compressed form and encrypted by at least one content key (CW), said content key (CW) as well as watermark instruction forming CAS data, said CAS Data being encrypted by a transmission key and comprising at least one signature to authenticate the CAS Data, said client device comprising A Conditional Access Module (CAS) in charge of the CAS Data, a Descrambler (DSC) having an input to receive the encrypted compressed content and an output to produce an compressed content, a decoder to convert the compressed content into uncompressed content, a Watermark inserter (201) connected to the output of the Decoder, a Secure Activation module (202) connected with the Watermark inserter (201), a Secure Element (SE 200) connected with the Watermark inserter (201) and the Secure Activation module (202), said method comprising the following steps : - receiving the CAS Data, - decrypting by the Conditional Access Module (CAS) the CAS Data with the transmission key, - verifying the signature of the CAS Data, and if the signature is valid, - transferring the content key (CW) to the descrambler (103) and the watermark instruction to the Secure Activation module (202), - transferring the watermark instruction and the unique identifier to the Watermark inserter (201), - enabling or disabling watermarking by the Watermark inserter (201), the uncompressed content received from the Decoder by watermarking data initialized by the unique identifier.

Abstract translation: 本发明的目的是对由客户端设备接收的内容，特别是对未压缩的视频内容实施水印。 本发明涉及一种以压缩形式对在客户端设备接收的未压缩内容进行水印并通过至少一个内容密钥（CW），所述内容密钥（CW）以及形成CAS数据的水印指令加密的方法，所述CAS数据 通过传输密钥加密并包括至少一个签名来认证CAS数据，所述客户端设备包括负责CAS数据的有条件接入模块（CAS），解密器（DSC），具有用于接收加密的压缩内容的输入 以及用于产生压缩内容的输出，将压缩内容转换成未压缩内容的解码器，连接到解码器的输出的水印插入器（201），与水印插入器（201）连接的安全激活模块（202） 与水印插入器（201）和安全激活模块（202）连接的安全元件（SE 200），所述方法包括以下步骤： - 接收CAS数据， - 解密t 他有条件访问模块（CAS）具有传输密钥的CAS数据， - 验证CAS数据的签名，如果签名有效，则将内容密钥（CW）传送到解扰器（103）和水印指令 所述安全激活模块（202）将所述水印指令和所述唯一标识符传送到所述水印插入器（201）， - 使所述水印插入器（201）启用或禁用水印，所述水印插入器（201）从所述解码器接收的未压缩内容通过将由 唯一标识符。