公开(公告)号：EP2058712A1

公开(公告)日：2009-05-13

申请号：EP08168644.6

申请日：2008-11-07

Applicant: Canon Kabushiki Kaisha

Inventor： Tsuchitoi, Naoki

IPC: G03G21/04 ,  H04N1/00 ,  H04N1/387

CPC classification number: H04N1/00846 ,  G03G21/04 ,  G03G2215/00932 ,  G06K15/18 ,  H04N1/00848 ,  H04N1/00859 ,  H04N1/00875 ,  H04N1/32133 ,  H04N2201/0091 ,  H04N2201/323 ,  H04N2201/3269

Abstract: Conventionally, during a copy operation, certain advanced mode settings make the extraction of additional security information impossible. In order to solve this problem, the print control apparatus includes: determining unit (1404) for determining an interval between a pattern element and a pattern element adjacent to the pattern element from the received image data; and control unit (1405) for performing a control so as to scale the image at a magnification specified by a user and have the scaled image printed by a printing apparatus when the product of the magnification specified by the user and the interval determined by the determining unit falls within a predetermined range (S4012), and configured to terminate or interrupt the printing of the image by the printing apparatus when the product of the magnification specified by the user and the interval determined by the determining unit does not fall within the predetermined range (S4013).

Abstract translation: 通常，在复制操作期间，某些高级模式设置使得不可能提取额外的安全信息。 为了解决这个问题，打印控制装置包括：确定单元（1404），用于从接收到的图像数据中确定图案元素和与图案元素相邻的图案元素之间的间隔; 以及控制单元（1405），用于执行控制以便以用户指定的倍率缩放图像，并且当由用户指定的倍率与通过确定的确定的间隔的乘积之间具有由打印设备打印的缩放图像 单元落在预定范围内（S4012），并且被配置为当用户指定的倍率与由确定单元确定的间隔的乘积不在预定范围内时终止或中断打印设备的图像的打印 （S4013）。

公开(公告)号：EP1877958A2

公开(公告)日：2008-01-16

申请号：EP06758577.8

申请日：2006-04-25

Applicant: Verance Corporation

Inventor： TEHRANCHI, Babak ,  WINOGRAD, Joseph, M. ,  PETROVIC, Rade

IPC: G06K9/00 ,  H04L9/00 ,  G06K9/36 ,  G09C5/00 ,  H04K1/00

CPC classification number: H04N1/32149 ,  G06T1/0071 ,  G10L19/018 ,  H04L9/002 ,  H04L9/088 ,  H04L2209/608 ,  H04N1/00037 ,  H04N1/00872 ,  H04N1/00875 ,  H04N1/32144 ,  H04N1/32299 ,  H04N1/32304 ,  H04N1/3232 ,  H04N1/32331 ,  H04N2201/323

Abstract: Methods for adapting the operation of a system in response to the detection of embedded watermarks from a digital host content are provided. A digital host content is received and examined for the presence of watermarks. In response to the detection of embedded watermarks and in accordance with the value, type, density or spacing of the detected watermarks, one or more system reactions may take place. These reactions include conditionally allowing the system to resume its normal operation, prohibiting the system from resuming its normal operation, degrading the quality of the digital host content or changing the security status of the digital host content. In response to the extraction of weak watermarks that do not meet the desired system requirements, the extraction operation may be modified or extended to enable the detection of strong watermarks.

公开(公告)号：EP1793583A4

公开(公告)日：2007-09-26

申请号：EP04773207

申请日：2004-09-16

Applicant: FUJITSU LTD

Inventor： CHIBA HIROTAKA ,  NODA TSUGIO

IPC: H04N1/32 ,  G06T1/00 ,  H04N1/44

CPC classification number: H04N1/32144 ,  H04N1/00846 ,  H04N1/00875 ,  H04N1/00912 ,  H04N1/3232 ,  H04N1/4413 ,  H04N1/444 ,  H04N2201/0082 ,  H04N2201/0091 ,  H04N2201/323

Abstract: Image identification information specific to image data to be inputted to an image replicating apparatus is embedded, as steganography, into the image data in advance. In the image replicating apparatus, a replication control apparatus decodes the steganography in the image data to detect the image identification information, then compares the detected image identification information with license information provided in advance, and permits, if they are coincident with each other, a copy operation, such as printing of the image data into a printing medium, storing of the image data into a storing medium, or the like.

公开(公告)号：EP0948193A3

公开(公告)日：2002-05-22

申请号：EP99104339.9

申请日：1999-03-04

Applicant: Deutsche Telekom AG ,  DaimlerChrysler Services (debis)AG

Inventor： Schwenk, Jörg ,  Ueberberg, Johannes, Dr.

IPC: H04N1/44 ,  H04N1/32 ,  G09C5/00 ,  G06T1/00

CPC classification number: H04N1/32144 ,  H04N2201/323 ,  H04N2201/3233 ,  H04N2201/3239

Abstract: Die Erfindung ermöglicht Manipulationen von Käufen oder Gruppen von Käfern der elektronischen Dokumenten nachzuweisen. Erfindungsgemäß wird ausgehend von einer vorher festgelegten Anzahl von Kopien und von einer maximalen Zahl von kooperierenden Angreifern zum Dokument für jede Kopie eine Stellen oder ein Bereiche für den digitalen Fingerabdruck des Kunden definiert. Alle im Rahmen des Dokuments definierten Stellen und Bereiche für die digitalen Fingerabdrücke unterliegen in ihrer Gesamtheit einem in sich geschlossenen endlichen geometrischen Ordnungssystem, in dem an definierten Stellen oder Bereichen Überschneidungen der digitalen Fingerabdrücke erfolgen. Anhand der Auswertung der durch die Angreifer nicht gefundenen Schnittstellen können die an der Manipulation beteiligten Angreifer eindeutig ermittelt werden. Das erfindungsgemäße Verfahren eignet sich insbesondere für die Kennzeichnung von Kopien von Dokumenten, die dem Copyrightschutz unterliegen.3

公开(公告)号：EP1019868A2

公开(公告)日：2000-07-19

申请号：EP97924752.5

申请日：1997-05-16

Applicant: Digimarc Corporation

Inventor： RHOADS, Geoffrey, B.

IPC: G06K9/36

CPC classification number: B42D25/333 ,  B42D25/00 ,  G06F17/30876 ,  G06F21/10 ,  G06F2221/0733 ,  G06F2221/0737 ,  G06K7/1417 ,  G06K7/1447 ,  G06K9/00442 ,  G06K19/06037 ,  G06K19/06046 ,  G06K19/14 ,  G06K19/18 ,  G06K2017/0064 ,  G06K2019/06253 ,  G06Q20/1235 ,  G06Q20/341 ,  G06Q20/40145 ,  G06T1/0021 ,  G06T1/0064 ,  G06T2201/0052 ,  G06T2201/0083 ,  G07C9/00079 ,  G07D7/0032 ,  G07D7/0034 ,  G07D7/004 ,  G07F7/08 ,  G07F7/086 ,  G07F7/1008 ,  G07F7/1016 ,  G07F7/12 ,  G07F17/26 ,  G10L19/018 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00166 ,  G11B20/0021 ,  G11B20/00884 ,  G11B20/00891 ,  H04B1/665 ,  H04K1/00 ,  H04L63/10 ,  H04L2463/103 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/00079 ,  H04N1/32122 ,  H04N1/32144 ,  H04N1/3216 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32251 ,  H04N1/32288 ,  H04N1/32352 ,  H04N5/913 ,  H04N19/00 ,  H04N19/467 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2005/91321 ,  H04N2005/91335 ,  H04N2201/3205 ,  H04N2201/3207 ,  H04N2201/3225 ,  H04N2201/3226 ,  H04N2201/323 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3246 ,  H04N2201/3249 ,  H04N2201/327 ,  H04N2201/3271 ,  H04N2201/3274 ,  H04N2201/328 ,  H04N2201/3281 ,  H04W8/20 ,  H04W84/042

Abstract: Various improvements to steganographic systems, and applications therefore, are disclosed. The improvements include facilitating scale and rotation registration for steganographic decoding by use of rotationally symmetric steganographically embedded patterns and subliminal digital graticules; improved techniques for decoding without access to unencoded originals; improving robustness of steganographic coding in motion pictures and/or in the presence of lossy compression/decompression; and representing data (1690) by patterned bit cells (802) whose energy in the spatial domain facilitates decoding registration (1692). Applications include enhanced-security financial transactions, counterfeit resistant identification cards, fraud deterrent systems for cellular telephony, covert modem channels in video transmissions, photo duplication kiosks with automatic copyright detection, and hotlinked image objects (e.g., with embedded URLs) for use on the Internet.

公开(公告)号：EP0883284A2

公开(公告)日：1998-12-09

申请号：EP98110336.9

申请日：1998-06-05

Applicant: Hitachi, Ltd.

Inventor： Yoshiura, Hiroshi ,  Takaragi, Kazuo ,  Sasaki, Ryoichi ,  Susaki, Seiichi ,  Toyoshima, Hisashi ,  Saito, Tsukasa

IPC: H04N1/32 ,  H04L9/32

CPC classification number: H04L63/12 ,  G06F21/10 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0063 ,  G06T2201/0081 ,  H04L9/3236 ,  H04L9/3247 ,  H04L63/0442 ,  H04L63/08 ,  H04L63/126 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2463/103 ,  H04N1/32144 ,  H04N7/163 ,  H04N21/2541 ,  H04N21/42684 ,  H04N21/44 ,  H04N21/4622 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/835 ,  H04N2201/323 ,  H04N2201/3236

Abstract: This invention provides a method for identifying a purchaser who purchased content from which an illegal copy was produced. A provider system (100) encrypts a content purchased by the purchaser using a public key of a purchaser system (200) and sends the encrypted content to the purchaser system. The purchaser system 200 creates a digital signature of the content with the use of a private key of its own and embeds the created digital signature into the received content. When an illegal copy is found, the provider system 100 verifies the digital signature, embedded in the illegal copy as a digital watermark, to identify the purchaser who purchased the content from which the illegal copy was produced.

Abstract translation: 本发明提供了一种用于识别购买从其产生非法拷贝的内容的购买者的方法。 提供者系统（100）使用购买者系统（200）的公共密钥加密由购买者购买的内容，并将加密的内容发送给购买者系统。 购买者系统200通过使用其自身的私钥来创建内容的数字签名，并将所创建的数字签名嵌入到接收的内容中。 当发现非法拷贝时，提供者系统100将嵌入在非法拷贝中的数字签名作为数字水印进行验证，以识别购买从其中产生非法拷贝的内容的购买者。

公开(公告)号：EP3100193A4

公开(公告)日：2017-06-28

申请号：EP15743115

申请日：2015-01-23

Applicant: DEPICT INC

Inventor： DE VUONO STEFANO ,  GORDON KIMBERLY

IPC: G06F21/10 ,  G06F21/16 ,  H04N1/32

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

公开(公告)号：EP2960819A1

公开(公告)日：2015-12-30

申请号：EP15176595.5

申请日：2009-01-13

Applicant: Capricode Oy

Inventor： Löytynoja, Mikko ,  Brockman, Marko ,  Koutaniemi, Jukka ,  Seppänen, Eero

IPC: G06F21/10 ,  G11B20/00 ,  G10L19/018 ,  H04N1/32

CPC classification number: H04N1/32149 ,  G06F21/10 ,  G06F2221/0733 ,  G10L19/018 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/327

Abstract: The invention relates to a method and system for embedding in a digital media file user fingerprint which the user cannot detect when using the digital media file. In the method, a user-detectable watermark is first embedded in the digital media file. This watermark can be transformed in a client device to a non-detectable fingerprint of the user by utilizing digital media file-specific information issued by a digital media rights owner when the user has bought a user license. Afterwards the digital media rights owner can read the embedded user fingerprint from the digital media file if it is illegally distributed between other users.

Abstract translation: 本发明涉及一种用于嵌入数字媒体文件用户指纹的方法和系统，用户在使用数字媒体文件时无法检测。 在该方法中，用户可检测的水印首先被嵌入在数字媒体文件中。 当用户已经购买用户许可证时，通过利用数字媒体权利拥有者发布的数字媒体文件特定信息，该水印可以在客户端设备中被转换成用户的不可检测的指纹。 之后，如果数字媒体版权所有者在其他用户之间非法分配，则可以从数字媒体文件读取嵌入的用户指纹。

公开(公告)号：EP2387764B1

公开(公告)日：2015-11-25

申请号：EP09838178.3

申请日：2009-01-13

Applicant: Capricode Oy

Inventor： LÖYTYNOJA, Mikko ,  BROCKMAN, Marko ,  KOUTANIEMI, Jukka ,  SEPPÄNEN, Eero

IPC: G10L19/018 ,  H04N1/32 ,  G06F21/10

CPC classification number: H04N1/32149 ,  G06F21/10 ,  G06F2221/0733 ,  G10L19/018 ,  H04N2201/323 ,  H04N2201/3236 ,  H04N2201/327

公开(公告)号：EP2748754A4

公开(公告)日：2015-01-21

申请号：EP11871185

申请日：2011-08-24

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： POLLARD STEPHEN ,  ADAMS GUY ,  SIMSKE STEVEN J

IPC: G06F21/60

CPC classification number: G06T1/0021 ,  H04N1/32101 ,  H04N2201/323 ,  H04N2201/3235 ,  H04N2201/3236 ,  H04N2201/3269 ,  H04N2201/3271

Abstract: A forensic authentication system includes an imaging device to capture an image of a printed mark and a non-printed area of a substrate directly adjacent to the printed mark, and a processor to run computer readable instructions. The processor can run computer readable instructions to utilize a model to define a substrate region that corresponds with at least a portion of the non-printed area of the substrate directly adjacent to the printed mark; and computer readable instructions to generate a substrate signature for the defined substrate region. Each of the computer readable instructions is embedded on a non-transitory, tangible computer readable medium.