公开(公告)号：US07457957B2

公开(公告)日：2008-11-25

申请号：US10221401

申请日：2002-01-12

申请人： Jong Uk Choi ,  Jong Won Kim

发明人： Jong Uk Choi ,  Jong Won Kim

IPC分类号： H04L9/00 ,  H04N7/167

CPC分类号： H04N1/32304 ,  G06T1/0042 ,  G06T1/0071 ,  G07D7/0034 ,  G07D7/004 ,  H04N1/3216 ,  H04N1/32165 ,  H04N1/3217 ,  H04N1/32187 ,  H04N1/32299 ,  H04N2201/3235 ,  H04N2201/3239 ,  H04N2201/327 ,  H04N2201/3271

摘要： Simultaneously with a robust watermark and fragile watermark or semi-watermark is embedded into conventional securities, etc., such as gift coupon, various kinds of ticket, coupon, electronic stamp, bond & debenture, note, stock certificate, lottery, paper money, check, etc. and various kinds of public documents including certificates, etc. requiring confirmation and authentication (hereinafter, referred to as “securities, etc.”) in the form of digital file. Such watermark-embedded securities, etc. are conveniently issued on-line and are printed out in the form of paper through a printer. The printed securities, etc. are used off-line and are authenticated by determining the forgery or alternation by means of photocopy, etc. through the detection of the embedded watermark.

摘要翻译： 与健康水印和脆弱水印或半水印同时嵌入传统证券等，如礼券，各种票，优惠券，电子邮票，债券和债券，票据，证券，彩票，纸币， 检查等，以及需要确认和认证的证书等的各种公开文件（以下称为“证券等”）以数字文件的形式。 这种水印嵌入式证券等方便地在线发行，并通过打印机以纸张的形式打印出来。 打印的证券等离线使用，并通过检测嵌入水印通过复印等确定伪造或交替进行认证。

公开(公告)号：US06975733B1

公开(公告)日：2005-12-13

申请号：US09786823

申请日：1999-09-10

申请人： Jong Uk Choi ,  Jong Won Kim ,  Jung Suck Cho ,  Han Ho Lee

发明人： Jong Uk Choi ,  Jong Won Kim ,  Jung Suck Cho ,  Han Ho Lee

IPC分类号： G06K9/00

CPC分类号： H04N1/32144 ,  H04N1/32165 ,  H04N1/3217

摘要： The present invention relates to a method for embedding a watermark into a black and white or color digital image [D(x)]. Basically the inventive method comprises the steps of transforming the digital image using a wavelet transform [WC(y)], transforming a watermark using discrete cosine transform (DCT), integrating the wavelet-transformed digital image with the DCT-transformed watermark [DW(x)+WC(y)] to insert the watermark into the image, and generating the watermarked image using inverse wavelet transform [D(x)′]. For color images, RGB mode is converted into YIQ mode using a conversion matrix and the wavelet transform is applied to the Y-, I-, Q-values. This inventive digital watermarking of a color image is found to be highly robust against lossy compression and other image processing operations, compared to conventionally known methods which are known to be unsuitable for watermarking color images.

摘要翻译： 本发明涉及一种将水印嵌入到黑白或彩色数字图像[D（x）]中的方法。 基本上，本发明的方法包括以下步骤：使用小波变换[WC（y）]变换数字图像，使用离散余弦变换（DCT）变换水印，将小波变换数字图像与DCT变换水印[DW x）+ WC（y）]将水印插入到图像中，并使用逆小波变换[D（x）']生成带水印的图像。 对于彩色图像，使用转换矩阵将RGB模式转换为YIQ模式，并将小波变换应用于Y，I，Q值。 发现彩色图像的本发明的数字水印技术对于有损压缩和其他图像处理操作来说是高度鲁棒的，与已知的不适合于对彩色图像进行水印化的已知方法相比。

公开(公告)号：US20110010756A1

公开(公告)日：2011-01-13

申请号：US12811596

申请日：2008-12-31

申请人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Ji Yeon Kim ,  Muhammad Ali Malik ,  Samg Yup Shim ,  Hong Won Lee

发明人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Ji Yeon Kim ,  Muhammad Ali Malik ,  Samg Yup Shim ,  Hong Won Lee

IPC分类号： G06F21/00 ,  G06F9/00 ,  G06F9/445

CPC分类号： G06F21/31 ,  G06F21/53

摘要： The present invention relates to a virtual application program system, a storage device, a method of executing a virtual application program, and a method of protecting a virtual environment. The virtual application program system includes an execution control module for executing a virtual application program, and a virtual environment protection module loaded by the execution control module and configured to block non-permitted application programs from accessing a virtual environment accessed by the virtual application program. Accordingly, the virtual environment can be protected from a host application program, etc., and independency and security of a task using a virtual application program can be guaranteed.

摘要翻译： 本发明涉及虚拟应用程序系统，存储装置，执行虚拟应用程序的方法以及保护虚拟环境的方法。 虚拟应用程序系统包括用于执行虚拟应用程序的执行控制模块和由执行控制模块加载并被配置为阻止不允许的应用程序访问由虚拟应用程序访问的虚拟环境的虚拟环境保护模块。 因此，可以保护虚拟环境免受主机应用程序等的影响，并且可以保证使用虚拟应用程序的任务的独立性和安全性。

公开(公告)号：US08677345B2

公开(公告)日：2014-03-18

申请号：US12673684

申请日：2008-08-13

申请人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Jiyeon Kim ,  Muhammad Ali Malik

发明人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Jiyeon Kim ,  Muhammad Ali Malik

IPC分类号： G06F9/44 ,  G06F9/445

CPC分类号： G06F9/45537 ,  G06F8/61

摘要： A virtual application creating system comprises: a virtual environment library block including a plurality of modules that process native application program interfaces (APIs) of an operating system such that the native application APIs are suited to a virtual environment, finding a module capable of processing a specific native API from the plurality of modules when the specific native API is called and operating the found module; a virtual application installation block receiving position information of an application to be virtualized and information on an installation place where the application will be virtualized and installed from a user and inserting the virtual environment library block into a memory to install a virtual application in the installation place; and a virtual application execution block executing the virtual application installed in the installation place.

摘要翻译： 虚拟应用创建系统包括：虚拟环境库块，其包括处理操作系统的本机应用程序接口（API）的多个模块，使得本地应用API适合于虚拟环境，找到能够处理 当调用特定的本机API并操作找到的模块时，来自多个模块的特定原生API; 虚拟应用程序安装块，用于接收要虚拟化的应用程序的位置信息，以及关于应用程序将从用户虚拟化并安装的安装位置的信息，并将虚拟环境库块插入到存储器中以将虚拟应用程序安装在安装地点 ; 以及执行安装在安装地点的虚拟应用的虚拟应用执行块。

公开(公告)号：US20110072424A1

公开(公告)日：2011-03-24

申请号：US12673684

申请日：2008-08-13

申请人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Jiyeon Kim ,  Muhammad Ali Malik

发明人： Jong Uk Choi ,  Dongha Shin ,  Sung Wook Jung ,  Jiyeon Kim ,  Muhammad Ali Malik

IPC分类号： G06F9/445 ,  G06F9/455

CPC分类号： G06F9/45537 ,  G06F8/61

摘要： A virtual application creating system, a virtual application installing method, a native API calling method and a virtual application executing method are disclosed. The virtual application creating system comprises a virtual environment library block including a plurality of modules that process native application program interfaces (APIs) of an operating system such that the native application APIs are suited to a virtual environment, finding a module capable of processing a specific native API from the plurality of modules when the specific native API is called and operating the found module; a virtual application installation block receiving position information of an application to be virtualized and information on an installation place where the application will be virtualized and installed from a user and inserting the virtual environment library block into a memory to install a virtual application in the installation place; and a virtual application execution block executing the virtual application installed in the installation place. Accordingly, an application selected by a user can be virtualized and installed in a position designated by the user, for example, an external storage unit, and the installed virtual application can be executed in a virtual environment independent from a host.

摘要翻译： 公开了虚拟应用创建系统，虚拟应用安装方法，本地API调用方法和虚拟应用执行方法。 虚拟应用创建系统包括虚拟环境库块，其包括处理操作系统的本机应用程序接口（API）的多个模块，使得本机应用API适合于虚拟环境，找到能够处理特定 当调用特定本机API并操作找到的模块时，来自多个模块的本地API; 虚拟应用程序安装块，用于接收要虚拟化的应用程序的位置信息，以及关于应用程序将从用户虚拟化并安装的安装位置的信息，并将虚拟环境库块插入到存储器中以将虚拟应用程序安装在安装地点 ; 以及执行安装在安装地点的虚拟应用的虚拟应用执行块。 因此，可以将由用户选择的应用程序虚拟化并安装在由用户指定的位置，例如外部存储单元中，并且可以在独立于主机的虚拟环境中执行安装的虚拟应用程序。

公开(公告)号：US20110010559A1

公开(公告)日：2011-01-13

申请号：US12743641

申请日：2008-11-13

申请人： Jong Young Kim ,  Sung Won Cho ,  Dong Uk Lee ,  Jong Uk Choi

发明人： Jong Young Kim ,  Sung Won Cho ,  Dong Uk Lee ,  Jong Uk Choi

IPC分类号： G06F21/00 ,  H04L9/08 ,  G06F9/06

CPC分类号： G06F21/6209

摘要： Disclosed herein are a digital file encryption method, a digital file decryption method, a digital file processing apparatus, and an encryption format conversion apparatus. The digital file encryption method includes encrypting a file using specific encryption information, storing the encrypted file in a file system, and storing the encryption information in a stream provided by the file system. Accordingly, since file lengths before and after encryption are identical to each other, an application needs not to consider a header length or perform offset correction when using an encrypted file.

摘要翻译： 这里公开了数字文件加密方法，数字文件解密方法，数字文件处理装置和加密格式转换装置。 数字文件加密方法包括使用特定加密信息对文件进行加密，将加密文件存储在文件系统中，并将加密信息存储在由文件系统提供的流中。 因此，由于加密之前和之后的文件长度彼此相同，所以当使用加密文件时，应用程序不需要考虑标题长度或执行偏移校正。

公开(公告)号：US20100299759A1

公开(公告)日：2010-11-25

申请号：US12745990

申请日：2008-11-13

申请人： Jong Young Kim ,  Sung Won Cho ,  Dong Uk Lee ,  Jong Uk Choi

发明人： Jong Young Kim ,  Sung Won Cho ,  Dong Uk Lee ,  Jong Uk Choi

IPC分类号： G06F21/22

CPC分类号： G06F21/52 ,  G06F21/10 ,  G06F2221/2105

摘要： Disclosed herein are a digital information security system, a kernel driver apparatus, and a digital information security method. The digital information security system includes a user module configured to operate in a user mode and to provide environment setting information comprising policy information about a use of digital information, and a kernel driver configured to operate in a kernel mode, to acquire information generated by an application of the user mode for the use of digital information, and to perform rights control regarding the use of digital information based on the acquired information and the policy information. Accordingly, the construction of a security system can be simplified, and the security of a security system can be improved.

摘要翻译： 这里公开了数字信息安全系统，内核驱动器装置和数字信息安全方法。 数字信息安全系统包括：用户模块，被配置为以用户模式操作，并提供包括关于使用数字信息的策略信息的环境设置信息;以及被配置为以内核模式操作的内核驱动器，以获取由 应用用户模式来使用数字信息，并且基于获取的信息和策略信息执行关于使用数字信息的权限控制。 因此，可以简化安全系统的构造，能够提高安全系统的安全性。

公开(公告)号：US06940995B2

公开(公告)日：2005-09-06

申请号：US10169210

申请日：2001-11-02

申请人： Jong Uk Choi ,  Gi Chul Choi

发明人： Jong Uk Choi ,  Gi Chul Choi

IPC分类号： G06T11/60 ,  G06F17/00 ,  G06F21/00 ,  G06K7/00 ,  G06T1/00 ,  G09C5/00 ,  H04N1/32 ,  H04N1/387 ,  H04K1/00

CPC分类号： H04N1/32144 ,  G06F21/64 ,  H04N1/32101 ,  H04N1/32315 ,  H04N2201/3233 ,  H04N2201/324 ,  H04N2201/327

摘要： The present invention relates to a method and apparatus for authenticating various types of digital certificates by using a text embedding method. The execution of the present invention is divided into two case, one case including images in the certificate and another case not including the images in the certificate, according to the characteristics of the certificate. In the former case, a text embedding method is applied to images included in the certificate to embed a series of information text (a specific number of the certificate, and issuing organization, name of a person in charge, etc.) designated by a person who issues the certificate into the images. In the latter case, there is generated an image imperceptible to the human eve but having the same color as the ground color certificate.

摘要翻译： 本发明涉及一种通过使用文本嵌入方法来认证各种类型的数字证书的方法和装置。 根据证书的特征，将本发明的执行划分为两种情况，一种情况包括证书中的图像和不包括证书中的图像的另一种情况。 在前一种情况下，将文本嵌入方法应用于证书中包含的图像，以嵌入一系列信息文本（特定号码的证书，发行机构，负责人的姓名等），由人指定 谁将证书发布到图像中。 在后一种情况下，产生了人类前夕不可察觉但具有与地面颜色证书相同颜色的图像。

公开(公告)号：US06839673B1

公开(公告)日：2005-01-04

申请号：US09537308

申请日：2000-03-29

申请人： Jong Uk Choi ,  Jung Seok Cho ,  Jong Weon Kim

发明人： Jong Uk Choi ,  Jung Seok Cho ,  Jong Weon Kim

IPC分类号： G10L11/00 ,  G06T1/00 ,  G09C5/00 ,  G10H1/00 ,  G10L19/00 ,  G11B20/10 ,  G10L21/00

CPC分类号： G10L19/00 ,  G10H1/0041 ,  G10H2240/041 ,  G10H2250/221 ,  G10H2250/235 ,  G10L25/27

摘要： Digital watermarking of digital audio is performed by Fourier transforming digital audio data, wavelet transforming the magnitude components of the Fourier transform coefficients of the digital audio data, discrete cosine transforming a watermark signal, multiplying the sign of the wavelet transform coefficients of the magnitude components to the coefficients of the discrete cosine transformed watermark signal, adding the coefficients of the Fourier transformed digital audio data and the adjusted discrete cosine transformed watermark signal, and inverse wavelet transforming the audio signal's coefficients before inverse Fourier transformation to finally generate watermark-embedded audio signal data.

摘要翻译： 数字音频的数字水印通过傅立叶变换数字音频数据，小波变换数字音频数据的傅立叶变换系数的幅度分量，离散余弦变换水印信号，将幅度分量的小波变换系数的符号乘以 离散余弦变换水印信号的系数，加上傅里叶变换数字音频数据和调整后的离散余弦变换水印信号的系数，以及逆傅里叶变换之前的音频信号系数的逆小波变换，最终生成嵌入水印的音频信号数据 。