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    Watermarking and Fingerprinting Digital Content Using Alternative Blocks to Embed Information
    3.
    发明申请
    Watermarking and Fingerprinting Digital Content Using Alternative Blocks to Embed Information 审中-公开
    水印和指纹数字内容使用替代块嵌入信息

    公开(公告)号：US20120237078A1

    公开(公告)日：2012-09-20

    申请号：US13482137

    申请日：2012-05-29

    申请人： Stephen Watson ,  Daniel A. Collens ,  Kevin Hui ,  Michael A. Malcolm

    发明人： Stephen Watson ,  Daniel A. Collens ,  Kevin Hui ,  Michael A. Malcolm

    IPC分类号： G06K9/00

    CPC分类号： H04N1/32187 ,  G06T1/0035 ,  H04N1/32165 ,  H04N1/32277 ,  H04N19/467 ,  H04N21/2383 ,  H04N21/23892 ,  H04N21/4348 ,  H04N21/8358 ,  H04N2201/324

    摘要： A method of embedding information in digital content representing media streams. The method includes (1) selecting a set of locations within that digital content reprensenting the media stream to embed information, (2) selecting a set of possible alterations to make at those locations, and (3) making a subset of the possible alterations. The set of locations and possible alterations is herein sometimes called a “watermark.” The subset of actual alterations that are made is herein sometimes called a “fingerprint.” The method determines a set of locations at which there are alternative versions of digital content representing the same media stream, such as one being the original and one being an alternative version of the same digital content, herein sometimes called the “original movie” and the “alt-movie,” or herein sometimes called the “original block” and the “alt-block” for a particular block in the digital content representing the media stream.

    摘要翻译： 一种在表示媒体流的数字内容中嵌入信息的方法。 该方法包括：（1）选择代替媒体流的数字内容中的一组位置以嵌入信息;（2）选择在这些位置进行的一组可能的改变，以及（3）制作可能的改变的子集。 这里的一组位置和可能的改变在这里有时被称为“水印”。所做的实际改变的子集在这里有时被称为“指纹”。该方法确定一组位置，其中存在代表 相同的媒体流，例如一个是原始的，一个是相同的数字内容的替代版本，在这里有时被称为“原始电影”和“alt-movie”，或者这里有时被称为“原始块”，并且 对于表示媒体流的数字内容中的特定块的“alt-block”。

    Data generating device capable of appending different watermarks to corresponding pages
    5.
    发明申请
    Data generating device capable of appending different watermarks to corresponding pages 有权
    数据生成装置能够将不同的水印附加到对应的页面

    公开(公告)号：US20060158688A1

    公开(公告)日：2006-07-20

    申请号：US11347284

    申请日：2006-02-06

    申请人： Hiromi Mori

    发明人： Hiromi Mori

    IPC分类号： G06F3/12

    CPC分类号： H04N1/00238 ,  G03G15/5087 ,  H04N1/32144 ,  H04N2201/3239 ,  H04N2201/324 ,  H04N2201/3271

    摘要： A computer is provided with an application and a printer driver. A user of the computer generates image data using the applications. When the image data is for a plurality of pages, the user selects a desired watermark for each of the plurality of pages. The printer driver converts the image data into print data, and combines selected watermarks with the print data for corresponding pages, thereby generating updated print data. The updated print data is output as a single print job to the printer. The printer executes printing operations based on the print job so as to print an image on a plurality of pages, each formed with a corresponding watermark.

    摘要翻译： 计算机配有应用程序和打印机驱动程序。 计算机的用户使用应用程序生成图像数据。 当图像数据是用于多个页面时，用户为多个页面中的每个页面选择期望的水印。 打印机驱动程序将图像数据转换为打印数据，并将所选水印与相应页面的打印数据组合，从而生成更新的打印数据。 更新的打印数据作为单个打印作业输出到打印机。 打印机基于打印作业执行打印操作，以便在多个页面上打印每个形成有相应水印的图像。

    Data generating device capable of appending different watermarks to corresponding pages
    6.
    发明授权
    Data generating device capable of appending different watermarks to corresponding pages 有权
    数据生成装置能够将不同的水印附加到对应的页面

    公开(公告)号：US07027179B2

    公开(公告)日：2006-04-11

    申请号：US09797828

    申请日：2001-03-05

    申请人： Hiromi Mori

    发明人： Hiromi Mori

    IPC分类号： G06K15/02 ,  G06F13/00

    CPC分类号： H04N1/00238 ,  G03G15/5087 ,  H04N1/32144 ,  H04N2201/3239 ,  H04N2201/324 ,  H04N2201/3271

    摘要： A computer is provided with an application and a printer driver. A user of the computer generates image data using the application. When the image data is for a plurality of pages, the user selects a desired watermark for each of the plurality of pages. The printer driver converts the image data into print data, and combines selected watermarks with the print data for corresponding pages, thereby generating updated print data. The updated print data is output as a single print job to the printer. The printer executes printing operations based on the print job so as to an image on a plurality of pages each formed with a corresponding watermark.

    摘要翻译： 计算机配有应用程序和打印机驱动程序。 计算机的用户使用应用程序生成图像数据。 当图像数据是用于多个页面时，用户为多个页面中的每个页面选择期望的水印。 打印机驱动程序将图像数据转换为打印数据，并将所选水印与相应页面的打印数据组合，从而生成更新的打印数据。 更新的打印数据作为单个打印作业输出到打印机。 打印机执行基于打印作业的打印操作，以便在形成有相应水印的多个页面上的图像。

    Encoding and decoding of watermarks in independent channels
    7.
    发明申请
    Encoding and decoding of watermarks in independent channels 审中-公开
    独立通道中水印的编码和解码

    公开(公告)号：US20050240767A1

    公开(公告)日：2005-10-27

    申请号：US10516145

    申请日：2003-05-21

    申请人： Aweke Lemma ,  Javier Aprea ,  Alphons Antonius Bruekers ,  Minne Van Der Veen

    发明人： Aweke Lemma ,  Javier Aprea ,  Alphons Antonius Bruekers ,  Minne Van Der Veen

    IPC分类号： H04N7/26 ,  G06T1/00 ,  G10L19/00 ,  H04N1/32 ,  H04L9/00

    CPC分类号： G06T1/0028 ,  H04N1/32149 ,  H04N1/32304 ,  H04N2201/3239 ,  H04N2201/324

    摘要： Methods and apparatus for embedding a watermark in a multimedia signal and detecting the watermark, are described. The method comprises the steps of generating a watermark signal comprising a first sequence of values and a second sequence of values; obtaining a first signal portion corresponding to a first channel and a second signal portion corresponding to a second channel from the multimedia signal, said channels being significantly independent; generating a first host modifying signal as a mixture of the first signal portion and the first sequence; generating a second host modifying signal as a mixture of the second signal portion and the second sequence; and generating a watermarked multimedia signal by combining scaled versions of the host modifying signals with the multimedia signal.

    摘要翻译： 描述了在多媒体信号中嵌入水印和检测水印的方法和装置。 该方法包括以下步骤：产生水印信号，该水印信号包括第一序列值和第二序列值; 从所述多媒体信号获得对应于第一信道的第一信号部分和对应于第二信道的第二信号部分，所述信道是显着独立的; 产生第一主机修改信号作为第一信号部分和第一序列的混合; 产生第二主机修改信号作为第二信号部分和第二序列的混合; 以及通过将所述主机修改信号的缩放版本与所述多媒体信号组合来生成水印多媒体信号。

    Data processing apparatus and method
    8.
    发明申请
    Data processing apparatus and method 失效
    数据处理装置及方法

    公开(公告)号：US20040168065A1

    公开(公告)日：2004-08-26

    申请号：US10728539

    申请日：2003-12-05

    发明人： Jason Charles Pelly ,  Daniel Warren Tapson

    IPC分类号： H04L009/00

    CPC分类号： H04N1/32154 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0063 ,  G06T2201/0065 ,  H04N1/32165 ,  H04N2201/324 ,  H04N2201/327

    摘要： A data processing apparatus is operable to identify one of a plurality of code words present in a watermarked version of a material item. The marked version is formed by combining each of a plurality of parts of a code word with one of a plurality of units from which the material item is comprised. The apparatus comprises a recovery processor operable to recover at least one part of the code word from a corresponding unit of the marked material item, and a correlator. The correlator is operable to generate for the marked material unit, a dependent correlation value for the part of the code word recovered from the material unit and the corresponding part of at least one of the re-generated code words from the set. A detector is operable to determine whether at least one of the code words is present in the marked material item from the dependent correlation value for the part of the code word exceeding a predetermined threshold. The data processor may detect the presence of the code word with improved probability, in particular when parts of the material have been corrupted.

    摘要翻译： 数据处理装置可操作以识别物料项目的水印版本中存在的多个码字之一。 标记版本通过将代码字的多个部分中的每一个与包含材料项的多个单元中的每一个组合而形成。 该装置包括恢复处理器，可操作以从标记物料的相应单元和相关器中恢复代码字的至少一部分。 所述相关器可操作地为所述标记的材料单元生成从所述材料单元恢复的所述代码字的部分的相关相关值以及来自所述组的所述重新生成的代码字中的至少一个的对应部分。 检测器可操作以根据代码字的部分超过预定阈值的相关相关值来确定标记物料项中是否存在至少一个代码字。 数据处理器可以以改进的概率来检测代码字的存在，特别是当材料的部分已被破坏时。

    Electronic watermark data insertion apparatus and electronic watermark data detection apparatus
    9.
    发明申请
    Electronic watermark data insertion apparatus and electronic watermark data detection apparatus 有权
    电子水印数据插入装置和电子水印数据检测装置

    公开(公告)号：US20010026616A1

    公开(公告)日：2001-10-04

    申请号：US09815849

    申请日：2001-03-23

    申请人： NEC Corporation

    发明人： Nobuyuki Tanaka

    IPC分类号： H04L009/32 ,  G06K009/36

    CPC分类号： H04N19/467 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32154 ,  H04N1/32165 ,  H04N1/32277 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/324 ,  H04N2201/327 ,  H04N2201/3283

    摘要： An electronic watermark data insertion apparatus comprises an insertion information memory (39) for preliminarily storing insertion information for designating electronic watermark data to be inserted block by block and an electronic watermark data insertion unit (33) for inserting, on the basis of the insertion information, the designated electronic watermark data from an electronic watermark data table (37) in a quantized image block by block. An electronic watermark data detection apparatus comprises an electronic watermark date extracting unit (45) for extracting the image data having a biased frequency region projecting in dependency on the inserted electronic watermark data block by block and an electronic watermark data detection unit (50) for calculating a statistical similarity between the extracted data and the electronic watermark data stored in an electronic watermark data table (48). An electronic watermark data accumulator (51) accumulates the statistical similarity for a predetermined time interval to produce an accumulated addition result which is reset after the elapse of the predetermined time interval or when the accumulated addition result exceeds the a predetermined threshold value. A determining unit (52) determines that the electronic watermark data is detected when the accumulated addition result exceeds the predetermined threshold value.

    摘要翻译： 电子水印数据插入装置包括：插入信息存储器，用于预先存储用于指定逐个插入的电子水印数据的插入信息;以及电子水印数据插入单元，用于根据插入信息插入 ，来自电子水印数据表（37）的指定电子水印数据，以量化图像块为单位。 一种电子水印数据检测装置，包括电子水印日期提取单元（45），用于根据插入的电子水印数据块逐块地提取具有偏置频率区域的图像数据;以及电子水印数据检测单元（50），用于计算 所提取的数据与存储在电子水印数据表（48）中的电子水印数据之间的统计相似度。 电子水印数据累加器（51）在预定的时间间隔内累加统计学相似度，以产生在经过预定时间间隔之后或当累加的相加结果超过预定阈值时复位的累积加法结果。 确定单元（52）确定当累积的相加结果超过预定阈值时检测到电子水印数据。

    Secure distribution of digital representations
    10.
    发明授权
    Secure distribution of digital representations 失效
    安全分发数字表示

    公开(公告)号：US06141753A

    公开(公告)日：2000-10-31

    申请号：US021339

    申请日：1998-02-10

    申请人： Jian Zhao ,  Eckhard Koch ,  Makoto Saito

    发明人： Jian Zhao ,  Eckhard Koch ,  Makoto Saito

    IPC分类号： H04N1/44 ,  G06T1/00 ,  G09C5/00 ,  H04L9/08 ,  H04L29/06 ,  H04N1/32 ,  H04N1/387 ,  H04N17/00

    CPC分类号： H04N1/32144 ,  G06T1/0021 ,  H04L63/0428 ,  H04N1/32272 ,  H04L2463/101 ,  H04L2463/103 ,  H04N2201/3205 ,  H04N2201/323 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/324 ,  H04N2201/327 ,  H04N2201/3274 ,  H04N2201/3278 ,  H04N2201/3281

    摘要： Techniques for secure distribution of digital representations that combine encryption and watermarking. When a user at a client desires to download a digital representation, the user makes a request to a server for the digital representation, which encrypts the digital representation using a first key and downloads the encrypted digital representation to the user. Before the user performs any operation on the decrypted digital representation, a secret fingerprint watermark identifying the user is added to the digital representation. The fingerprint watermark is added either at the server or at the client and a copy of the fingerprinted digital representation is kept at the server. If the user makes an impermissible use of the digital representation, the secret fingerprint watermark can be used to identify the user. The request made by the user indicates the type of use that the user wished to make of the digital representation. If the use involves storage of the digital representation at the client, the server provides a second key that the client employs to encrypt the digital representation. If the user has permission to do so, the user may modify the digital representation and return the modified digital representation to the server for further distribution. In this case, the second key is used to encrypt the digital representation when it is sent to the server. The second key also serves as the user identification in the fingerprint watermark. If the user loses the second key, it can be recovered from the copy of the fingerprinted digital representation kept at the server. The first and second keys and any decrypted copy of the digital representation are kept in secure storage in the client.

    摘要翻译： 用于安全分发加密和水印的数字表示的技术。 当客户端的用户希望下载数字表示时，用户向数字表示服务器发出请求，数字表示使用第一密钥加密数字表示，并将加密的数字表示下载给用户。 在用户对解密的数字表示执行任何操作之前，将标识用户的秘密指纹水印添加到数字表示。 指纹水印在服务器或客户机中被添加，并且指纹数字表示的副本被保存在服务器上。 如果用户不允许使用数字表示，则可以使用秘密指纹水印来识别用户。 由用户作出的请求指示用户希望进行数字表示的使用类型。 如果使用涉及在客户端处存储数字表示，则服务器提供客户端用于加密数字表示的第二密钥。 如果用户具有这样做的权限，则用户可以修改数字表示并将修改的数字表示返回到服务器以进一步分发。 在这种情况下，第二个键用于在发送到服务器时对数字表示进行加密。 第二个键也用作指纹水印中的用户标识。 如果用户丢失第二个密钥，则可以从保存在服务器上的指纹数字表示的副本中恢复。 数字表示的第一个和第二个键和任何解密的副本都保存在客户端的安全存储中。