公开(公告)号：US6111990A

公开(公告)日：2000-08-29

申请号：US152294

申请日：1998-09-14

申请人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

发明人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

IPC分类号： H04N5/91 ,  G06F21/10 ,  G06T1/00 ,  G09C5/00 ,  G11B20/10 ,  H04L9/36 ,  H04N1/387 ,  H04N7/08 ,  H04N7/081 ,  H04N19/124 ,  H04N19/154 ,  H04N19/25 ,  H04N19/46 ,  H04N19/467 ,  H04N19/583 ,  H04N19/60 ,  H04N19/625 ,  H04N19/70 ,  G06K9/36 ,  G06K9/46

CPC分类号： G06T1/0028 ,  H04N19/60 ,  G06T2201/0052

摘要： In a digital-watermark superposing apparatus and a digital-watermark detecting apparatus, a plurality of DCT coefficients for respective frequency components are generated by subjecting video data to a two-dimensional DCT transform for each pixel block consisting of a predetermined number of pixels, and the value of at least one of the DCT coefficients is quantized in accordance with a quantization rule corresponding to the information so as to obtain a quantized DCT coefficient. A two-dimensional inverse DCT transform is performed with respect to the DCT coefficients in which the at least one DCT coefficient thereof is replaced with the quantized DCT coefficient, so as to obtain digital-watermark superposed video data in which the digital watermark corresponding to the information has been superposed on the video data. At this juncture, the digital-watermark superposed video data is selected and outputted concerning a section in which a video pattern due to the video data is not flatter than a predetermined video pattern, while, instead of the digital-watermark superposed video data, the video data is selected and outputted as it is concerning a section in which the video pattern due to the video data is flatter than the predetermined video pattern.

摘要翻译： 在数字水印重叠装置和数字水印检测装置中，通过使视频数据对于由预定数量的像素构成的每个像素块进行二维DCT变换来生成用于各个频率分量的多个DCT系数，以及 根据对应于该信息的量化规则量化DCT系数中的至少一个的值，以获得量化的DCT系数。 对于其中至少一个DCT系数被替换为DCT系数的DCT系数执行二维逆DCT变换，以获得数字水印叠加的视频数据，其中对应于 信息已经叠加在视频数据上。 此时，数字水印叠加视频数据被选择并输出，其中由于视频数据而导致的视频图像不比预定的视频图形更平坦，而代替数字水印叠加的视频数据， 选择和输出视频数据，其中由于视频数据导致的视频图像比预定的视频图形更平坦的部分。

公开(公告)号：US06823074B1

公开(公告)日：2004-11-23

申请号：US09633341

申请日：2000-08-04

申请人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

发明人： Kazumi Sugaya ,  Takeshi Nakamura ,  Yoshiaki Moriyama

IPC分类号： G06K900

CPC分类号： G06T1/0021 ,  G06T2201/0052 ,  H04N19/60

摘要： In a digital-watermark superposing apparatus and a digital-watermark detecting apparatus, a plurality of DCT coefficients for respective frequency components are generated by subjecting video data to a two-dimensional DCT transform for each pixel block consisting of a predetermined number of pixels, and the value of at least one of the DCT coefficients is quantized in accordance with a quantization rule corresponding to the information so as to obtain a quantized DCT coefficient. A two-dimensional inverse DCT transform is performed with respect to the DCT coefficients in which the at least one DCT coefficient thereof is replaced with the quantized DCT coefficient, so as to obtain digital-watermark superposed video data in which the digital watermark corresponding to the information has been superposed on the video data. At this juncture, the digital-watermark superposed video data is selected and outputted concerning a section in which a video pattern due to the video data is not flatter than a predetermined video pattern, while, instead of the digital-watermark superposed video data, the video data is selected and outputted as it is concerning a section in which the video pattern due to the video data is flatter than the predetermined video pattern.

摘要翻译： 在数字水印重叠装置和数字水印检测装置中，通过使视频数据对于由预定数量的像素构成的每个像素块进行二维DCT变换来生成用于各个频率分量的多个DCT系数，以及 根据对应于该信息的量化规则量化DCT系数中的至少一个的值，以获得量化的DCT系数。 对于其中至少一个DCT系数被替换为DCT系数的DCT系数执行二维逆DCT变换，以获得数字水印叠加的视频数据，其中对应于 信息已经叠加在视频数据上。 此时，数字水印叠加视频数据被选择并输出，其中由于视频数据而导致的视频图像不比预定的视频图形更平坦，而代替数字水印叠加的视频数据， 选择和输出视频数据，其中由于视频数据导致的视频图像比预定的视频图形更平坦的部分。

公开(公告)号：US06389152B2

公开(公告)日：2002-05-14

申请号：US09829206

申请日：2001-04-09

申请人： Takeshi Nakamura ,  Kazumi Sugaya ,  Yoshiaki Moriyama

发明人： Takeshi Nakamura ,  Kazumi Sugaya ,  Yoshiaki Moriyama

IPC分类号： G06K900

CPC分类号： H04N19/467 ,  G06T1/0064 ,  G06T1/0071 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32149 ,  H04N1/32165 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32352 ,  H04N19/60 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

摘要： An apparatus for superposing a digital watermark for superposing digital watermark information on an information data signal bearing original information superposes digital watermark information on an information data signal bearing original information, for each unit block consisting of a group of pieces of information data. This apparatus is provided with an auxiliary embedding circuit 10 of or embedding second digital watermark information in the information data; a blocking circuit 12 for dividing into the unit blocks the changed information data signal obtained by the auxiliary embedding circuit; and a main embedding circuit 20 for embedding first digital watermark information in the changed information data signal for each of the divided blocks. The second digital watermark information bears information for identifying the position of the divided unit block in a predetermined section of the information data signal. On the basis of the second watermark information, a detecting apparatus effects proper blocking with respect to the information data signal with the watermark embedded therein, so as to detect the first watermark information.

摘要翻译： 对于由一组信息数据组成的每个单位块，叠加用于将数字水印信息叠加在承载原始信息的信息数据信号上的数字水印的装置叠加有承载原始信息的信息数据信号的数字水印信息。 该装置设置有信息数据中的第二数字水印信息的辅助嵌入电路10或嵌入第二数字水印信息; 分块电路12，用于将由辅助嵌入电路获得的改变的信息数据信号分成单元; 以及用于将第一数字水印信息嵌入到用于每个分割块的改变的信息数据信号中的主嵌入电路20。 第二数字水印信息承载用于识别信息数据信号的预定部分中的划分的单位块的位置的信息。 基于第二水印信息，检测装置对嵌入有水印的信息数据信号进行适当的阻塞，以检测第一水印信息。

公开(公告)号：US06990584B1

公开(公告)日：2006-01-24

申请号：US09453719

申请日：1999-12-03

申请人： Hiroshi Yoshiura ,  Hiroyuki Kimura ,  Akira Ogino ,  Yoshiaki Moriyama ,  Kazumi Sugaya

发明人： Hiroshi Yoshiura ,  Hiroyuki Kimura ,  Akira Ogino ,  Yoshiaki Moriyama ,  Kazumi Sugaya

IPC分类号： H04L9/00 ,  G06F11/30 ,  H04N7/167

CPC分类号： G06T1/0071 ,  G06T2201/0064 ,  H04N5/913 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/9135

摘要： An apparatus for restricting a copy of digital information is provided with a detecting device for detecting a first watermark, which is buried in the digital information and comprises a first signal generated on the basis of a first rule. A burying device buries a second watermark, which comprises a second signal generated on the basis of a second rule and having a structure different from that of the first signal, into the digital information if the first watermark is detected by the detecting device. A recording apparatus is provided with: an inputting device for inputting the digital information; the above mentioned copy restricting apparatus; and a recording device for recording the digital information in which the second watermark is buried by the burying device.

摘要翻译： 一种用于限制数字信息的拷贝的装置设置有用于检测第一水印的检测装置，该第一水印被埋在数字信息中，并且包括基于第一规则生成的第一信号。 如果检测装置检测到第一水印，则掩埋装置将第二水印埋入数字信息中，所述第二水印包括基于第二规则生成的具有不同于第一信号的结构的第二信号。 记录装置具有：用于输入数字信息的输入装置; 上述复制限制装置; 以及用于记录第二水印被掩埋装置掩埋的数字信息的记录装置。

公开(公告)号：US06633723B1

公开(公告)日：2003-10-14

申请号：US09346748

申请日：1999-07-02

申请人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

发明人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

IPC分类号： H04N591

CPC分类号： G11B20/00746 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00768 ,  G11B20/00884 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/91364

摘要： A system comprising a recording apparatus for recording record information onto a recording medium and a reproducing apparatus for reading the record information from the recording medium and outputting it to reproduce, is provided. The record information includes: image information; a first identification information which represents any one of never copy, one copy and copy free; and a second identification information which represents either the never copy or the one copy. The never copy indicates copying is prohibited. The one copy indicates copying is once permitted. The copy free indicates copying is permitted. The recording apparatus controls recording the record information, and determines whether or not the record information is to be encrypted based upon the first identification information and the second identification information. The reproducing apparatus controls outputting the record information based upon the first identification information and whether the record information has been encrypted or not.

摘要翻译： 提供了一种包括用于将记录信息记录到记录介质上的记录装置和用于从记录介质读取记录信息并将其输出以再现的再现装置的系统。 记录信息包括：图像信息; 第一个识别信息，代表从不复制，一个复制和复制免费的任何一个; 以及表示从不复制或一个副本的第二识别信息。 永不复制表示禁止复制。 一个副本表示一旦被允许复制。 免费的副本表示允许复制。 记录装置控制记录记录信息，并且基于第一识别信息和第二识别信息来确定记录信息是否被加密。 再现装置根据第一识别信息和记录信息是否被加密来控制输出记录信息。

公开(公告)号：US06954856B1

公开(公告)日：2005-10-11

申请号：US09510438

申请日：2000-02-21

申请人： Takashi Kohashi ,  Akira Ogino ,  Hiroyuki Kimura ,  Hiroshi Yoshiura ,  Yoshiaki Moriyama ,  Kazumi Sugaya

发明人： Takashi Kohashi ,  Akira Ogino ,  Hiroyuki Kimura ,  Hiroshi Yoshiura ,  Yoshiaki Moriyama ,  Kazumi Sugaya

IPC分类号： H04N7/08 ,  G06T1/00 ,  G09C5/00 ,  G11B20/10 ,  G11B27/00 ,  H04L9/36 ,  H04N1/387 ,  H04N5/913 ,  H04N7/081 ,  H04L9/00

CPC分类号： G06T1/0071 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  H04N5/913 ,  H04N2005/91335

摘要： An apparatus and method for embedding additional information embeds plural pieces of additional information on a signal as electronic watermark information. In detail, plural pieces of additional information to be embedded on a signal are generated, the additional information is converted into electronic watermark information, the sizes of embedding parts for respective electronic watermark information are defined under control, and the electronic watermark information is embedded on the signal based on the control signal. Therefore, the additional information are embedded so that additional information having a higher significance degree can be more reliably and rapidly detected.

摘要翻译： 用于嵌入附加信息的装置和方法将作为电子水印信息的信号上的多条附加信息嵌入。 详细地，生成要嵌入在信号上的多条附加信息，附加信息被转换为电子水印信息，各个电子水印信息的嵌入部分的大小被定义在控制下，电子水印信息嵌入在 该信号基于控制信号。 因此，附加信息被嵌入，使得可以更可靠和快速地检测到具有较高重要度的附加信息。

公开(公告)号：US06804452B1

公开(公告)日：2004-10-12

申请号：US09305422

申请日：1999-05-05

申请人： Kazuo Kuroda ,  Hidejiro Higashi ,  Yoshiaki Moriyama ,  Kazumi Sugaya ,  Keiichi Yamauchi

发明人： Kazuo Kuroda ,  Hidejiro Higashi ,  Yoshiaki Moriyama ,  Kazumi Sugaya ,  Keiichi Yamauchi

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91328 ,  H04N2005/91335

摘要： An apparatus for generating a recording signal by converting an image signal and outputting the generated recording signal to an external device is provided. The image signal included image data corresponding to an image to be displayed on a display. The image data includes a plurality of data pieces each corresponding to a different one of a plurality of image elements which compose the image. The apparatus includes: a control information placing device for placing a control information piece onto one of the plurality of data pieces corresponding to one of the plurality of image elements that is to be located at an outer edge portion of the image when the image is displayed on the display screen; and a generating device for generating the recording signal including the control information piece. The control information piece includes information to control an operation of the external device.

摘要翻译： 提供一种用于通过转换图像信号并将生成的记录信号输出到外部设备来产生记录信号的装置。 图像信号包括对应于要显示在显示器上的图像的图像数据。 图像数据包括多个数据段，每个数据段对应于构成图像的多个图像元素中的不同的一个。 该装置包括：控制信息放置装置，用于将控制信息片放置在与显示图像的位于图像的外边缘部分的多个图像元素中的一个相对应的多个数据中的一个上 在显示屏上; 以及用于产生包括控制信息片的记录信号的产生装置。 控制信息部分包括用于控制外部设备的操作的信息。

公开(公告)号：US06711276B1

公开(公告)日：2004-03-23

申请号：US09453578

申请日：1999-12-03

申请人： Hiroshi Yoshiura ,  Isao Echizen ,  Takao Arai ,  Hiroyuki Kimura ,  Toshifumi Takeuchi ,  Yoshiaki Moriyama ,  Kazumi Sugaya ,  Akira Ogino

发明人： Hiroshi Yoshiura ,  Isao Echizen ,  Takao Arai ,  Hiroyuki Kimura ,  Toshifumi Takeuchi ,  Yoshiaki Moriyama ,  Kazumi Sugaya ,  Akira Ogino

IPC分类号： G06K900

CPC分类号： G06T1/0085 ,  G06T1/0028 ,  G06T2201/0065 ,  H04N19/467 ,  H04N19/51 ,  H04N19/61 ,  H04N21/23892 ,  H04N21/8358

摘要： A watermark information embedding method, and apparatus, capable of suppressing the quality degradation of contents and increasing the survivability of embedded information. When embedding watermark information in moving picture data formed of a plurality of still picture frames arranged in time series, a motion vector representing a property specific to moving picture is detected for each of image blocks generated by dividing a target frame. According to a motion quantity, a pixel change factor specifying rule is selected for each block. Out of pixels permitted to be changed in luminance depending upon the state of an image in each block representing a property specific to still picture, as many pixels as a number specified by the selected rule are selected. Luminance change processing for forming watermark information is conducted on the selected pixels.

摘要翻译： 一种水印信息嵌入方法和装置，其能够抑制内容的质量劣化并增加嵌入信息的生存性。 当将水印信息嵌入由以时间序列排列的多个静止图像帧形成的运动图像数据中时，针对通过划分目标帧而产生的每个图像块检测表示运动图像特有的属性的运动矢量。 根据运动量，为每个块选择像素变化因子指定规则。 根据表示静止图像特有的属性的每个块中的图像的状态，亮度允许变化的像素的数量被选择为与所选择的规则指定的数量一样多的像素。 对所选择的像素进行用于形成水印信息的亮度变化处理。

公开(公告)号：US06707774B1

公开(公告)日：2004-03-16

申请号：US09346934

申请日：1999-07-02

申请人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

发明人： Kazuo Kuroda ,  Toshio Suzuki ,  Yoshiaki Moriyama ,  Kazumi Sugaya

IPC分类号： G11B700

CPC分类号： H04N5/913 ,  G11B7/0053 ,  G11B7/007 ,  G11B7/00736 ,  G11B19/02 ,  G11B19/122 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00768 ,  G11B20/00884 ,  G11B2007/0006 ,  H04N5/85 ,  H04N9/8042 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/91342 ,  H04N2005/91364

摘要： An apparatus for reading record information from a recording disk and outputting the read record information in order to reproduce the record information recorded on the recording disk, is provided. The record information includes: image information which represents an image or a picture; identification information which represents any one of at least never copy and copy free. The never copy indicates that copying of the record information is prohibited. The copy free indicates that the copying of the record information is permitted. The apparatus comprises: a read device for reading the record information from the recording disk; a first determination device for determining whether the identification information included in the read record information indicates the never copy or the copy free; a second determination device for determining whether the recording disk is a recording disk of a recordable type or a recording disk of a read-only type; an output control device for determining on the basis of determinations of the first determination device and the second determination device whether outputting the read record information is permitted or prohibited; and an output device for outputting the read record information in accordance with a determination of the output control device.

摘要翻译： 提供一种用于从记录盘读取记录信息并输出读取的记录信息以便再现记录在记录盘上的记录信息的装置。 记录信息包括：表示图像或图像的图像信息; 代表至少从不复制和复制的任何一个的识别信息。 永不复制表示禁止复制记录信息。 无复制表示允许复制记录信息。 该装置包括：用于从记录盘读取记录信息的读取装置; 第一确定装置，用于确定包括在所读取的记录信息中的识别信息是否指示从不复制或复制; 用于确定记录盘是可记录类型的记录盘还是只读类型的记录盘的第二确定装置; 输出控制装置，用于基于第一确定装置和第二确定装置的确定确定是否允许或禁止输出所读取的记录信息; 以及输出装置，用于根据输出控制装置的确定输出读取的记录信息。

公开(公告)号：US06246775B1

公开(公告)日：2001-06-12

申请号：US09152293

申请日：1998-09-14

申请人： Takeshi Nakamura ,  Kazumi Sugaya ,  Yoshiaki Oriyama

发明人： Takeshi Nakamura ,  Kazumi Sugaya ,  Yoshiaki Oriyama

IPC分类号： G06K900

CPC分类号： H04N19/467 ,  G06T1/0064 ,  G06T1/0071 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32149 ,  H04N1/32165 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32352 ,  H04N19/60 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

摘要： An apparatus for superposing a digital watermark for superposing digital watermark information on an information data signal bearing original information, superposes digital watermark information on an information data signal bearing original information, for each unit block consisting of a group of pieces of information data. This apparatus is provided with an auxiliary embedding circuit 10 for embedding second digital watermark information in the information data; a blocking circuit 12 for dividing into the unit blocks the changed information data signal obtained by the auxiliary embedding circuit; and a main embedding circuit 20 for embedding first digital watermark information in the changed information data signal for each of the divided blocks. The second digital watermark information bears information for identifying the position of the divided unit block in a predetermined section of the information data signal. On the basis of the second watermark information, a detecting apparatus effects proper blocking with respect to the information data signal with the watermark embedded therein, so as to detect the first watermark information.

摘要翻译： 对于由一组信息数据组成的每个单位块，叠加用于将数字水印信息叠加在承载原始信息的信息数据信号上的数字水印的装置，叠加有承载原始信息的信息数据信号的数字水印信息。 该装置设置有用于在信息数据中嵌入第二数字水印信息的辅助嵌入电路10; 分块电路12，用于将由辅助嵌入电路获得的改变的信息数据信号分成单元; 以及用于将第一数字水印信息嵌入到用于每个分割块的改变的信息数据信号中的主嵌入电路20。 第二数字水印信息承载用于识别信息数据信号的预定部分中的划分的单位块的位置的信息。 基于第二水印信息，检测装置对嵌入有水印的信息数据信号进行适当的阻塞，以检测第一水印信息。