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    WATERMARKING ELECTRONIC TEXT DOCUMENTS
    93.
    发明申请
    WATERMARKING ELECTRONIC TEXT DOCUMENTS 有权
    水印电子文件

    公开(公告)号：US20120030546A1

    公开(公告)日：2012-02-02

    申请号：US13181072

    申请日：2011-07-12

    Applicant: Adnan M. Alattar ,  Osama M. Alattar

    Inventor： Adnan M. Alattar ,  Osama M. Alattar

    IPC: H03M13/05 ,  G06F11/10 ,  H03M13/15

    CPC classification number: G06F17/2294 ,  G06F17/241 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0062 ,  G06T2201/0065 ,  H04N1/32203 ,  H04N1/32219 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/328 ,  H04N2201/3284

    Abstract: A text watermarking method embeds an auxiliary message in an original electronic text document to form a watermarked text document. The method applies a spreading function to message symbols to spread the symbols over a carrier, which forms a modulated carrier. It maps elements of the modulated carrier to corresponding inter-word spaces in the electronic text document, and applies an embedding function to modify the corresponding inter-word spaces according to elements of the modulated carrier signal such that the modified inter-word spaces hide the modulated carrier signal in the watermarked text document. The message symbols are automatically decodable from the watermarked document without the original electronic text document. A compatible decoder extracts the auxiliary message from a printed or electronic watermarked text document. The decoder automatically measures inter-word spaces in the watermarked text document. It estimates elements of a modulated carrier signal embedded in the inter-word spaces to form an estimated modulated carrier signal, and applies a de-spreading function to the estimated modulated carrier signal to extract message symbols.

    Abstract translation: 文本水印方法在原始电子文本文档中嵌入辅助消息以形成水印文本文档。 该方法将扩展函数应用于消息符号，以便在形成调制载波的载波上扩展符号。 它将调制载波的元素映射到电子文本文档中的对应的字间空间，并且根据调制的载波信号的元素应用嵌入功能来修改对应的字间空间，使得修改的字间空间隐藏 在水印文本文档中调制载波信号。 消息符号可以从没有原始电子文本文档的水印文档中自动解码。 兼容解码器从打印或电子水印的文本文档中提取辅助消息。 解码器自动测量水印文本文档中的字间空格。 它估计嵌入在字间空间中的调制载波信号的元素以形成估计的调制载波信号，并且对估计的调制载波信号应用去扩展功能以提取消息符号。

    Embedding and detecting watermarks based on embedded positions in document layout
    94.
    发明授权
    Embedding and detecting watermarks based on embedded positions in document layout 失效
    基于文档布局中的嵌入位置嵌入和检测水印

    公开(公告)号：US07873183B2

    公开(公告)日：2011-01-18

    申请号：US12603057

    申请日：2009-10-21

    Applicant: Yuan He ,  Lin Luo ,  Ming Su ,  Ling Shao ,  Zhe Xiang

    Inventor： Yuan He ,  Lin Luo ,  Ming Su ,  Ling Shao ,  Zhe Xiang

    IPC: G06K9/00

    CPC classification number: G06T1/0028 ,  G06F17/212 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04K1/00 ,  H04L9/3236 ,  H04L2209/16 ,  H04L2209/608

    Abstract: A watermark embedding method for embedding a secret message sequence in a document. The techniques include obtaining layout information of the document, extracting a digest of the document by using a Hash function, calculating embedded positions where the secret message sequence is embedded in the document, and dispersedly hiding the secret message sequence in each of the calculated embedded positions by altering the layout of the document. Also provided is a watermark embedding apparatus, a corresponding watermark detecting method and apparatus, and a method and system for detecting document integrity. The integrity of documents in various forms can be detected, and secret information to be hidden can be embedded therein and extracted therefrom. The techniques described are not limited to the document either in soft copy or in hard copy and have good robustness.

    Abstract translation: 一种用于在文档中嵌入秘密消息序列的水印嵌入方法。 这些技术包括获取文档的布局信息，通过使用散列函数提取文档的摘要，计算秘密消息序列嵌入在文档中的嵌入位置，以及分散地隐藏每个计算的嵌入位置中的秘密消息序列 通过更改文档的布局。 还提供了水印嵌入装置，相应的水印检测方法和装置，以及用于检测文档完整性的方法和系统。 可以检测各种形式的文件的完整性，并且可以将隐藏的秘密信息嵌入其中并从中提取。 所描述的技术不限于软拷贝或硬拷贝中的文档，并且具有良好的鲁棒性。

    Digital watermarking system according to matrix margin and digital watermarking method
    95.
    发明授权
    Digital watermarking system according to matrix margin and digital watermarking method 有权
    数字水印系统根据矩阵余量和数字水印方式

    公开(公告)号：US07796777B2

    公开(公告)日：2010-09-14

    申请号：US11308331

    申请日：2006-03-16

    Applicant: Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

    Inventor： Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

    IPC: G06K9/00

    CPC classification number: G06T1/0021 ,  G06K9/00577 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32219 ,  H04N1/32229 ,  H04N1/32251 ,  H04N1/32272

    Abstract: A digital watermarking system and method is provided. The digital watermarking system mainly includes a storing unit (30), a text obtaining module (31), a dot matrix determining module (32), an encrypting module (33), and a storing module (34). The storing unit is for storing text information, the text information including one or more dot matrix files. The text obtaining module is for obtaining one dot matrix file to be watermarked from the storing unit. The dot matrix file includes plural dot matrixes, each of which has a matrix margin and includes plural pixels. The dot matrix determining module is for earmarking the dot matrix to be adjusted to obtain a watermark. The encrypting module is for adjusting the matrix margin of the earmarked dot matrix. The storing module is for storing watermarked text information in the storing unit. Related methods are provided.

    Abstract translation: 提供了一种数字水印系统和方法。 数字水印系统主要包括存储单元（30），文本获取模块（31），点阵确定模块（32），加密模块（33）和存储模块（34）。 存储单元用于存储文本信息，文本信息包括一个或多个点阵文件。 文本获取模块用于从存储单元获得要加水印的一个点阵文件。 点阵文件包括多个点矩阵，每个点阵具有矩阵余量并且包括多个像素。 点阵确定模块用于指定要调整的点矩阵以获得水印。 加密模块用于调整指定点阵的矩阵余量。 存储模块用于将加水印的文本信息存储在存储单元中。 提供相关方法。

    Image processor, method thereof, computer program, and computer readable storage medium
    96.
    发明授权
    Image processor, method thereof, computer program, and computer readable storage medium 失效
    图像处理器，其方法，计算机程序和计算机可读存储介质

    公开(公告)号：US07571323B2

    公开(公告)日：2009-08-04

    申请号：US10759364

    申请日：2004-01-16

    Applicant: Keiichi Iwamura ,  Kitahiro Kaneda

    Inventor： Keiichi Iwamura ,  Kitahiro Kaneda

    IPC: H04L9/00 ,  G06K9/00

    CPC classification number: H04N1/00846 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/00864 ,  H04N1/00867 ,  H04N1/0087 ,  H04N1/00875 ,  H04N1/00883 ,  H04N1/32144 ,  H04N2201/3246 ,  H04N2201/327

    Abstract: A method for image processing comprising inputting and reading a combined image that includes a latent image unperceivable by the human eye, a patterned image in the background allowing the latent image to appear clearly on a recording medium when data recorded on a recording medium is copied onto another recording medium, and text and/or image data embedded with a digital watermark. The text and/or image data is extracted from the combined image and the digital watermark extracted from the text and/or image data. A permission code enabling copying of image data composed of a combination of a patterned image and the extracted text and/or image data onto a recording medium is input. The copying is regulated based on the extracted digital watermark and the permission code.

    Abstract translation: 一种用于图像处理的方法，包括输入和读取包括人眼不可察觉的潜像的组合图像，背景中的图案化图像，允许潜像在记录介质上记录的数据被复制到记录介质上清晰地显示在其上 另一种记录介质，以及嵌入数字水印的文本和/或图像数据。 从组合图像和从文本和/或图像数据提取的数字水印中提取文本和/或图像数据。 输入允许将由图案化图像和提取的文本和/或图像数据的组合组成的图像数据复制到记录介质上的许可代码。 基于提取的数字水印和许可代码对复制进行调整。

    EMBEDDING AND DETECTING WATERMARKS
    99.
    发明申请
    EMBEDDING AND DETECTING WATERMARKS 审中-公开
    嵌入式和检测水印

    公开(公告)号：US20070014429A1

    公开(公告)日：2007-01-18

    申请号：US11457559

    申请日：2006-07-14

    Applicant: Yuan He ,  Lin Luo ,  Ming Su ,  Ling Shao ,  Zhe Xiang

    Inventor： Yuan He ,  Lin Luo ,  Ming Su ,  Ling Shao ,  Zhe Xiang

    IPC: G06K9/00

    CPC classification number: G06T1/0028 ,  G06F17/212 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04K1/00 ,  H04L9/3236 ,  H04L2209/16 ,  H04L2209/608

    Abstract: A watermark embedding method for embedding a secret message sequence in a document. The techniques include obtaining layout information of the document, extracting a digest of the document by using a Hash function, calculating embedded positions where the secret message sequence is embedded in the document, and dispersedly hiding the secret message sequence in each of the calculated embedded positions by altering the layout of the document. Also provided is a watermark embedding apparatus, a corresponding watermark detecting method and apparatus, and a method and system for detecting document integrity. The integrity of documents in various forms can be detected, and secret information to be hidden can be embedded therein and extracted therefrom. The techniques described are not limited to the document either in soft copy or in hard copy and have good robustness.

    Abstract translation: 一种用于在文档中嵌入秘密消息序列的水印嵌入方法。 这些技术包括获取文档的布局信息，通过使用散列函数提取文档的摘要，计算秘密消息序列嵌入在文档中的嵌入位置，以及分散地隐藏每个计算的嵌入位置中的秘密消息序列 通过更改文档的布局。 还提供了水印嵌入装置，相应的水印检测方法和装置，以及用于检测文档完整性的方法和系统。 可以检测各种形式的文件的完整性，并且可以将隐藏的秘密信息嵌入其中并从中提取。 所描述的技术不限于软拷贝或硬拷贝中的文档，并且具有良好的鲁棒性。

    DIGITAL WATERMARKING SYSTEM ACCORDING TO MATRIX MARGIN AND DIGITAL WATERMARKING METHOD
    100.
    发明申请
    DIGITAL WATERMARKING SYSTEM ACCORDING TO MATRIX MARGIN AND DIGITAL WATERMARKING METHOD 有权
    数字水印系统符合矩阵和数字水印方法

    公开(公告)号：US20060285720A1

    公开(公告)日：2006-12-21

    申请号：US11308331

    申请日：2006-03-16

    Applicant: Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

    Inventor： Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

    IPC: G06K9/00

    CPC classification number: G06T1/0021 ,  G06K9/00577 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32219 ,  H04N1/32229 ,  H04N1/32251 ,  H04N1/32272

    Abstract: A digital watermarking system and method is provided. The digital watermarking system mainly includes a storing unit (30), a text obtaining module (31), a dot matrix determining module (32), an encrypting module (33), and a storing module (34). The storing unit is for storing text information, the text information including one or more dot matrix files. The text obtaining module is for obtaining one dot matrix file to be watermarked from the storing unit. The dot matrix file includes plural dot matrixes, each of which has a matrix margin and includes plural pixels. The dot matrix determining module is for earmarking the dot matrix to be adjusted to obtain a watermark. The encrypting module is for adjusting the matrix margin of the earmarked dot matrix. The storing module is for storing watermarked text information in the storing unit. Related methods are provided.

    Abstract translation: 提供了一种数字水印系统和方法。 数字水印系统主要包括存储单元（30），文本获取模块（31），点阵确定模块（32），加密模块（33）和存储模块（34）。 存储单元用于存储文本信息，文本信息包括一个或多个点阵文件。 文本获取模块用于从存储单元获得要加水印的一个点阵文件。 点阵文件包括多个点矩阵，每个点阵具有矩阵余量并且包括多个像素。 点阵确定模块用于指定要调整的点矩阵以获得水印。 加密模块用于调整指定点阵的矩阵余量。 存储模块用于将加水印的文本信息存储在存储单元中。 提供相关方法。

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