公开(公告)号：WO01023981A1

公开(公告)日：2001-04-05

申请号：PCT/GB2000/003712

申请日：2000-09-28

IPC: G06F1/00 ,  G06F21/64 ,  G06T1/00 ,  G09C1/00 ,  G09C5/00 ,  G10L11/00 ,  G10L19/00 ,  H04L9/32 ,  H04N1/387

CPC classification number: G06T1/0028 ,  G06F21/64 ,  G06F2211/007 ,  G06T2201/0064

Abstract: A method of authenticating a digital data work, to enable its integrity or authenticity to be established, is taught. The method envisages calculating a unique signature for the unaltered work and embedding that signature in some manner back into the unaltered work in a way that actually changes the work itself.

Abstract translation: 教授了一种认证数字数据作业，以确保其完整性或真实性的方法。 该方法设想为未改变的工作计算独特的签名，并以某种方式将该签名嵌入到未改变的工作中，以实际改变工作本身的方式。

公开(公告)号：WO99018723A1

公开(公告)日：1999-04-15

申请号：PCT/US1998/021036

申请日：1998-10-01

IPC: H04N5/91 ,  G06T1/00 ,  G11B20/10 ,  H04N5/913 ,  H04N5/92 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26

CPC classification number: G06T1/0071 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0064 ,  G06T2201/0065 ,  H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91335

Abstract: Method and apparatus for "copy-once" of a digital video signal uses a watermark in the video signal. The embedded watermark has two versions: one indicates copy-never and a second indicates copy-once, the difference being a single watermark bit. The watermark carries additional bits representing a digitized attribute (image characteristic) of a particular video frame of the video signal, for instance an average value of the amplitude of a video field. The frame whose attribute is carried in the watermark has a field (or frame) marker, which is a special signal located in the overscan portion of the frame. A compliant video recorder verifies the watermark and the copy-once bit (48, 54), extracts the associated attribute from the watermark (56), and compares (68) it to the measured attribute (58) of the marked video frame. Only if the extracted attribute value and the measured attribute value match, is recording enabled. During the recording process (70), the frame markers are stripped (72), preventing second generation copies of the recorded video signal, and the copy-once bit is set to copy-never.

Abstract translation: 数字视频信号“复制一次”的方法和装置在视频信号中使用水印。 嵌入水印有两个版本：一个表示从未复制，另一个表示复制一次，差别是单个水印位。 水印承载表示视频信号的特定视频帧的数字化属性（图像特性）的附加位，例如视频场的幅度的平均值。 属性在水印中携带的帧具有位于帧的过扫描部分中的特殊信号的场（或帧）标记。 兼容视频记录器验证水印和复制一次位（48,54），从水印（56）中提取相关联的属性，并将其与标记的视频帧的测量属性（58）进行比较（68）。 只有提取的属性值和测量属性值匹配，才能启用记录。 在记录过程（70）期间，帧标记被剥离（72），防止记录的视频信号的第二代副本，并且一次复制位被设置为从不复制。

公开(公告)号：WO9833325A3

公开(公告)日：1998-09-11

申请号：PCT/IB9800087

申请日：1998-01-22

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS NORDEN AB

Inventor： LINNARTZ JOHAN PAUL MARIE GERA

IPC: H04N5/91 ,  G06F1/00 ,  G06F12/14 ,  G06F21/24 ,  G06T1/00 ,  G11B20/00 ,  H04N1/387 ,  H04N5/913 ,  H04N5/92 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26 ,  H04N21/2389 ,  H04N21/8358 ,  H04N7/50

CPC classification number: G06T1/0042 ,  G06T1/0021 ,  G06T2201/0064 ,  G11B20/00086 ,  G11B20/00884 ,  H04N5/913 ,  H04N19/00 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/91342 ,  H04N2005/91364

Abstract: A system for transferring content information and supplemental information relating thereto is described, e.g. audio, video and supplementally author or copy-control status via an optical disc. An encoded signal is generated comprising a watermark pattern representing supplemental information. The watermark pattern cannot be changed without seriously affecting the quality of the content information after reproduction. According to the invention a control pattern is transferred also, while the watermark is generated by applying a one-way function to the control pattern. This has the advantage, that any change to the watermark or the control pattern can be detected easily, because it is computationally not feasible to calculate a new control pattern for a changed watermark. Therefore the supplemental information is well protected against manipulation. Alternatively a malicious party will be forced to fully replace the watermark pattern, thereby maximally affecting the quality of the reproduced content. In a copy control method allowing a first generation copy ('copy-once') the original control pattern is processed 3 times by the one-way function for generating the watermark, while each player or recorder processes the control pattern once before outputting/recording it, so forming a cryptographically protected down-counter.

公开(公告)号：WO2015116497A1

公开(公告)日：2015-08-06

申请号：PCT/US2015/012682

申请日：2015-01-23

Applicant: DEPICT, INC.

Inventor： DE VUONO, Stefano ,  GORDON, Kimberly

IPC: G06F21/00

CPC classification number: H04N1/32144 ,  G06F21/10 ,  G06F21/16 ,  G06F21/31 ,  G06F2221/0746 ,  G06F2221/0748 ,  G06T1/0021 ,  G06T1/0042 ,  G06T1/005 ,  G06T11/60 ,  G06T2201/0061 ,  G06T2201/0063 ,  G06T2201/0064 ,  H04N1/32272 ,  H04N2201/323 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3238 ,  H04N2201/327

Abstract: Among other things, at a cloud-based service, digital image files are received from which digital images can be displayed on devices. For each of the digital image files, data is embedded in the digital image file on behalf of a party who has rights in the digital image file. The existence of the embedded data is not perceptible in any digital image that is displayed using the digital image file. The embedded data includes information from which the digital image file can be authenticated. At the cloud-based service, a digital image file is received that is to be authenticated. The digital image file is authenticated based on the embedded data.

Abstract translation: 除了别的以外，在基于云的服务中，接收数字图像文件，数字图像可以从数字图像显示在设备上。 对于每个数字图像文件，代表在数字图像文件中具有权利的一方的数据嵌入在数字图像文件中。 在使用数字图像文件显示的任何数字图像中，嵌入数据的存在是不可察觉的。 嵌入的数据包括数字图像文件可从其认证的信息。 在基于云的服务中，接收到要认证的数字图像文件。 数字图像文件基于嵌入数据进行认证。

公开(公告)号：WO2015047290A1

公开(公告)日：2015-04-02

申请号：PCT/US2013/062150

申请日：2013-09-27

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： HOLSTUN, Clayton L.

IPC: H04N1/387 ,  G06T3/00 ,  H04N21/8358

CPC classification number: G06T1/0071 ,  G06T3/00 ,  G06T3/40 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0064 ,  H04N1/32144 ,  H04N1/387 ,  H04N21/8358

Abstract: A first instance of a digital watermark may be embedded into an image. The first instance may encode information. A second instance of the digital watermark may be embedded into the image. The second instance may encode the information of the first instance. The second instance may be a sized differently or may be larger than the first instance.

Abstract translation: 数字水印的第一实例可以嵌入到图像中。 第一个实例可以对信息进行编码。 数字水印的第二个实例可以嵌入到图像中。 第二实例可以对第一实例的信息进行编码。 第二实例可以是不同的大小，或者可以大于第一实例。

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。

公开(公告)号：WO2007122574A3

公开(公告)日：2008-01-24

申请号：PCT/IB2007051459

申请日：2007-04-20

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  STARING ANTONIUS A M

Inventor： STARING ANTONIUS A M

IPC: G11B20/00 ,  G06F21/10 ,  G10L19/00 ,  G10L19/018 ,  H04N5/913

CPC classification number: G11B20/00086 ,  G06F21/10 ,  G06F2221/0737 ,  G06T1/0071 ,  G06T2201/0064 ,  G10L19/018 ,  G11B20/0021 ,  G11B20/00884 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N5/913 ,  H04N21/4627 ,  H04N21/8358 ,  H04N2005/91335

Abstract: The present invention relates to a method for a content provider of renewing the watermarking of theatrical content and for updating consumer devices to detect said renewed watermark, wherein a watermark is embedded in said theatrical content using at least a first watermark noise pattern. Renewing is performed by said content provider distributing at least a second watermark noise pattern, which is used for embedding and detecting said watermark in said theatrical content, to said consumer devices using a broadcast encryption technology. The invention further relates to a content provider system adapted to be used for renewing the watermarking of theatrical content and for updating consumer devices to detect said renewed watermark.

Abstract translation: 本发明涉及一种内容提供方法，用于更新戏剧内容的水印和更新消费者设备以检测所述更新的水印，其中使用至少第一水印噪声模式将水印嵌入所述戏剧内容中。 所述内容提供者使用广播加密技术向所述消费者设备分发至少将第二水印噪声模式用于所述戏剧内容中的所述水印进行嵌入和检测的所述内容提供商进行更新。 本发明还涉及适用于更新戏剧内容的水印和更新消费者设备以检测所述更新的水印的内容提供者系统。

公开(公告)号：WO2006081585A3

公开(公告)日：2006-11-02

申请号：PCT/US2006004684

申请日：2006-01-27

Applicant: SARNOFF CORP ,  LUBIN JEFFREY ,  CATANESE THOMAS ,  POLYZOIS CHRISTOS ,  ELEDATH JAYAN

Inventor： LUBIN JEFFREY ,  CATANESE THOMAS ,  POLYZOIS CHRISTOS ,  ELEDATH JAYAN

IPC: G06K9/00 ,  H04L9/00 ,  H04N7/167 ,  H04N7/24

CPC classification number: H04N21/23892 ,  G06F21/10 ,  G06T1/0021 ,  G06T2201/0064 ,  H04K1/00 ,  H04N5/222 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/2541 ,  H04N21/6125 ,  H04N21/8358

Abstract: A method and apparatus for providing an improved workflow for digital watermarking during a production process. The invention provides a content tracking authority facility that forms a centralized location for storing and distributing watermarks and locations within a payload to place the watermarks. All post-production facilities that are involved in processing a particular payload (e.g., any content that can be watermarked, including video content) connect to the content tracking authority facility to receive watermarks for the content they are processing as well as locations within the content to use to place the watermark.

Abstract translation: 一种用于在生产过程中为数字水印提供改进的工作流程的方法和装置。 本发明提供一种内容跟踪权限设施，其形成用于存储和分发有效载荷内的水印和位置以放置水印的集中位置。 涉及处理特定有效负载的所有后期制作工具（例如，任何可以被加水印的内容，包括视频内容）连接到内容跟踪授权机构，以接收他们正在处理的内容以及内容中的位置的水印 用来放置水印。

公开(公告)号：WO2006076174A1

公开(公告)日：2006-07-20

申请号：PCT/US2005/047588

申请日：2005-12-28

Applicant: EASTMAN KODAK COMPANY ,  MILLER, Michael Eugene ,  MURDOCH, Michael John ,  MADDEN, Thomas Ethan

Inventor： MILLER, Michael Eugene ,  MURDOCH, Michael John ,  MADDEN, Thomas Ethan

IPC: H04N9/31 ,  H04N9/67

CPC classification number: G11B20/00086 ,  G06T1/0028 ,  G06T2201/0064 ,  G11B20/00826 ,  G11B20/00884 ,  H04N5/913 ,  H04N9/3173 ,  H04N9/3182 ,  H04N9/3194 ,  H04N9/67 ,  H04N2005/91392

Abstract: A color display system including a display device for four or more visible color primaries and a processor for controlling the four or more color primaries to selectively render portions of an image or image sequence such that visually equivalent colors displayed in two or more image portions differ in their spectral composition.

Abstract translation: 一种彩色显示系统，包括用于四个或更多个可见颜色原色的显示装置和用于控制四个或更多个颜色原色以选择性地渲染图像或图像序列的部分的处理器，使得在两个或更多个图像部分中显示的视觉上相当的颜色不同 它们的光谱组成。

公开(公告)号：WO2002080442A1

公开(公告)日：2002-10-10

申请号：PCT/JP2002/002956

申请日：2002-03-27

Applicant: ソニー株式会社 ,  石黒 隆二

Inventor： 石黒 隆二

IPC: H04L9/00

CPC classification number: G11B20/0071 ,  G06F21/10 ,  G06F2221/0706 ,  G06F2221/0755 ,  G06T1/0021 ,  G06T2201/0064 ,  G11B20/00086 ,  G11B20/00144 ,  G11B20/00152 ,  G11B20/0021 ,  G11B20/00333 ,  G11B20/00507 ,  G11B20/00753 ,  G11B20/0084 ,  G11B20/00855 ,  G11B20/00884 ,  H04L9/0836 ,  H04L9/3247 ,  H04L9/3263 ,  H04L2209/56 ,  H04L2209/608

Abstract: An information processing apparatus capable of management of copyright in the SDMI and management of copyright of a content transferred via the Internet. A content encrypted by a content key (Kc) into data (Enc (Kc, Content)) is recorded. Simultaneously with this, a header (Header), a certificate (Cert), data Enc (KR, Kc) created by encrypting the content key (Kc) by a root key (KR), and an enabling key block (EKB) are recorded. The header contains a content ID (CID), a license ID (LID), an URL, and a watermark (WM). Furthermore, a header signature (Sig (Header)) is added. This invention can be applied to an apparatus providing a content.

Abstract translation: 一种能够管理SDMI中的版权以及经由因特网传送的内容的版权管理的信息处理装置。 记录由内容密钥（Kc）加密为数据（Enc（Kc，Content））的内容。 与此同时，记录通过根密钥（KR）加密内容密钥（Kc）和启用密钥块（EKB）创建的头部（头部），证书（Cert），数据Enc（KR，Kc） 。 标题包含内容ID（CID），许可证ID（LID），URL和水印（WM）。 此外，添加标题签名（Sig（Header））。 本发明可以应用于提供内容的装置。