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：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：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：US06954472B2

公开(公告)日：2005-10-11

申请号：US09934621

申请日：2001-08-22

申请人： Akira Ogino ,  Nozomu Ikeda ,  Yuji Kimura ,  Hisayoshi Moriwaki ,  Takashi Kohashi

发明人： Akira Ogino ,  Nozomu Ikeda ,  Yuji Kimura ,  Hisayoshi Moriwaki ,  Takashi Kohashi

IPC分类号： H04N7/08 ,  G06F21/10 ,  H04B1/707 ,  H04J3/12 ,  H04J13/00 ,  H04N7/081

CPC分类号： H04J13/0003 ,  H04J3/12 ,  H04J13/0077

摘要： A method of superimposing additional information on a video signal, transmitting it, and detecting the additional information from the transmitted video signal. The additional information is synchronized with a sync signal in the video signal, and generated in N (N≧1) unit intervals of one field of the video signal. Some predetermined unit intervals of the additional information generated in N (N≧1) unit intervals of one field of the video signal, are phase-inverted. The additional information is identified by detecting the information in unit intervals based on the sync signal in the video signal, and detecting that information in some predetermined unit intervals is inverted. The additional information is identified by detecting the information in unit intervals, and integrating the detection results with the information in inverted predetermined unit intervals inverted.

摘要翻译： 一种将附加信息叠加在视频信号上的方法，将其发送，并从所发送的视频信号中检测附加信息。 附加信息与视频信号中的同步信号同步，并且以视频信号的一个场的N（N> = 1）个单位间隔生成。 在视频信号的一个场的N（N> = 1）个单位间隔中产生的附加信息的一些预定单位间隔被相位反相。 通过基于视频信号中的同步信号检测单位间隔中的信息来识别附加信息，并且以某些预定单位间隔检测信息被反转。 通过以单位间隔检测信息来识别附加信息，并且将检测结果与倒置的反转的预定单位间隔中的信息进行积分。

公开(公告)号：US06470137B1

公开(公告)日：2002-10-22

申请号：US09140725

申请日：1998-08-27

申请人： Nozomu Ikeda ,  Akira Ogino ,  Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura

发明人： Nozomu Ikeda ,  Akira Ogino ,  Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N9/8047 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： Visual influence on the reproduced image by the spectrum spread additional information signal can be controlled on the reproduced image by sequentially changing the level of the spectrum spread additional information signal with the predetermined pattern in each chip section on the occasion of superimposing, on the video signal, the spectrum spread additional information signal in which the additional information such as duplication preventing control information and copy right information, etc. is spectrum spread.

摘要翻译： 可以通过在叠加时在每个芯片部分中将预定图案的频谱扩展附加信息信号的电平在视频信号上重新控制，从而通过频谱扩展附加信息信号对再现图像的视觉影响 频谱扩展附加信息信号，其中复制防止控制信息和复制权信息等附加信息被频谱扩展。

公开(公告)号：US06466617B1

公开(公告)日：2002-10-15

申请号：US09702203

申请日：2000-10-31

申请人： Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura ,  Akira Ogino ,  Nozomu Ikeda

发明人： Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura ,  Akira Ogino ,  Nozomu Ikeda

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N9/8042 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/9135

摘要： Video signals are converted into one or more blocks for each predetermined unit amount of data, and a Discrete Cosine Transform (DCT) process is performed in the blocks a convert the video signal from a time-base area signal to a DCT coefficient in a frequency area for data compression. One chip of a spread spectrum signal is allocated to each block of the video signal or to each of a plurality of blocks, and additional information is superimposed on the video signal at a constant level corresponding to the chip value for transmission. A video signal on which the additional information consisting of the spread spectrum signal transmitted has been superimposed is received, and from this received signal, a DC component of the DCT coefficient is extracted. Inverse spread spectrum processing is performed for the DC component of the DCT coefficient extracted to detect the additional information.

摘要翻译： 视频信号被转换为每个预定单位数据量的一个或多个块，并且在块a中执行离散余弦变换（DCT）处理，将视频信号从时基区域信号转换为频率的DCT系数 数据压缩区域。 将扩频信号的一个芯片分配给视频信号的每个块或多个块中的每个块，并且附加信息以对应于用于发送的码片值的恒定电平叠加在视频信号上。 接收由发送的扩频信号构成的附加信息的视频信号，从该接收信号中提取DCT系数的直流分量。 对所提取的DCT系数的DC分量进行逆扩频处理，以检测附加信息。

公开(公告)号：US06342924B1

公开(公告)日：2002-01-29

申请号：US09392050

申请日：1999-09-08

申请人： Nozomu Ikeda ,  Akira Ogino ,  Takashi Kohashi ,  Yuji Kimura ,  Hisayoshi Moriwaki

发明人： Nozomu Ikeda ,  Akira Ogino ,  Takashi Kohashi ,  Yuji Kimura ,  Hisayoshi Moriwaki

IPC分类号： H04N708

CPC分类号： H04N7/0122 ,  H04N5/4401 ,  H04N5/913 ,  H04N7/08 ,  H04N19/467 ,  H04N21/4135 ,  H04N21/43632 ,  H04N21/440272 ,  H04N21/4408 ,  H04N21/8358 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/9135 ,  H04N2005/91364

摘要： Disclosed herein are an additional information superposition method and a video signal outputting apparatus, wherein the additional information superposition method for superposing additional information spectrum spread with spread codes synchronized with a vertical synchronizing signal on a second video signal for forming an image of an aspect ratio of N:n which is to be converted into and outputted as a first video signal for forming an image of another aspect ratio of M:m, comprising the steps of setting a size of a unit block before conversion in the second video signal based on a size of a unit block after conversion to which one chip of spread codes for despreading determined in advance is allocated and contents of a conversion process into the first video signal, and superposing the additional information spectrum spread with the spread codes of one chip allocated for each unit block before conversion having the set size in such a manner as to allow the additional information to be extracted from the first video signal.

摘要翻译： 本文公开了一种附加信息叠加方法和视频信号输出装置，其中用于将附加信息频谱扩展的扩展码与垂直同步信号同步的第二视频信号叠加的附加信息叠加方法，用于形成纵横比 N：n，其将被转换并作为用于形成M：m的另一宽高比的图像的第一视频信号，其包括以下步骤：基于第二视频信号在第二视频信号中设置转换之前的单位块的大小 转换后的单元块的大小被分配给预先确定的解扩展码的一个码片，并将转换处理的内容分配到第一视频信号中，并且将附加信息频谱扩展为每个分配的一个码片的扩频码 在具有设定大小的转换之前的单元块以允许附加信息的方式 从第一视频信号中提取出来。

公开(公告)号：US06339449B1

公开(公告)日：2002-01-15

申请号：US09143972

申请日：1998-08-31

申请人： Nozomu Ikeda ,  Akira Ogino ,  Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura

发明人： Nozomu Ikeda ,  Akira Ogino ,  Hisayoshi Moriwaki ,  Takashi Kohashi ,  Yuji Kimura

IPC分类号： H04N1120

CPC分类号： H04N5/913 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： An additional information signal is superimposed on a video signal at a very low level so that it does not stand out on the reproduced image. Spectral spreading code sequences are generated corresponding to different predetermined parts of the video signal. Bit information signals of the additional information signal made up of plural bits are spectrally spread by the spreading codes to generate spectrally spread bit information signals corresponding to the plural bits. The spectrally spread bit information signals are superimposed on corresponding different predetermined parts of the video signal. Because high priority bit information signals of the spectrally spread additional information signal are superimposed on high priority parts of the video signal, high priority information in the additional information can be protected even if the video signal is modified.

摘要翻译： 附加信息信号以非常低的水平叠加在视频信号上，使得它不再显示在再现的图像上。 对应于视频信号的不同预定部分产生频谱扩展码序列。 由多个比特构成的附加信息信号的比特信息信号通过扩展码进行频谱扩展，以生成与多个比特对应的频谱扩展比特信息信号。 频谱扩展的位信息信号被叠加在视频信号的对应的不同的预定部分上。 由于频谱扩展的附加信息信号的高优先级比特信息信号被叠加在视频信号的高优先级部分上，所以即使视频信号被修改也可以保护附加信息中的高优先级信息。

公开(公告)号：US06295303B1

公开(公告)日：2001-09-25

申请号：US09145428

申请日：1998-09-01

申请人： Akira Ogino ,  Nozomu Ikeda ,  Yuji Kimura ,  Hisayoshi Moriwaki ,  Takashi Kohashi

发明人： Akira Ogino ,  Nozomu Ikeda ,  Yuji Kimura ,  Hisayoshi Moriwaki ,  Takashi Kohashi

IPC分类号： H04J300

CPC分类号： H04J13/0003 ,  H04J3/12 ,  H04J13/0077

摘要： A method of superimposing additional information on a video signal, transmitting it, and detecting the additional information from the transmitted video signal. The additional information is synchronized with a sync signal in the video signal, and generated in N(N≧1) unit intervals of one field of the video signal. Some predetermined unit intervals of the additional information generated in N(N≧1) unit intervals of one field of the video signal, are phase-inverted. The additional information is identified by detecting the information in unit intervals based on the sync signal in the video signal, and detecting that information in some predetermined unit intervals is inverted. The additional information is identified by detecting the information in unit intervals, and integrating the detection results with the information in inverted predetermined unit intervals inverted.

摘要翻译： 一种将附加信息叠加在视频信号上的方法，将其发送，并从所发送的视频信号中检测附加信息。 附加信息与视频信号中的同步信号同步，并且以视频信号的一个场的N（N> = 1）个单位间隔生成。 在视频信号的一个场的N（N> = 1）个单位间隔中产生的附加信息的一些预定单位间隔被相位反相。 通过基于视频信号中的同步信号检测单位间隔中的信息来识别附加信息，并且以某些预定单位间隔检测信息被反转。 通过以单位间隔检测信息来识别附加信息，并且将检测结果与倒置的反转的预定单位间隔中的信息进行积分。

公开(公告)号：US06636551B1

公开(公告)日：2003-10-21

申请号：US09431793

申请日：1999-11-03

申请人： Nozomu Ikeda ,  Akira Ogino ,  Takashi Kohashi ,  Yuji Kimura ,  Hisayoshi Moriwaki

发明人： Nozomu Ikeda ,  Akira Ogino ,  Takashi Kohashi ,  Yuji Kimura ,  Hisayoshi Moriwaki

IPC分类号： H04L2704

CPC分类号： G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  G11B20/00086 ,  G11B20/00768 ,  G11B20/00884 ,  G11B20/00913 ,  H04L12/40104 ,  H04L12/40117 ,  H04N5/913 ,  H04N9/7921 ,  H04N9/8042 ,  H04N2005/91328 ,  H04N2005/91335 ,  H04N2005/9135

摘要： An additional information transmission method for transmitting an information signal and additional information in the form of an electronic watermark. The electronic watermark information is generated and superimposed on the information signal for transmission so as to form a superimposition/non-superimposition pattern corresponding to first additional information and transmitting second additional information on the information signal such that one value of one-bit information is expressed by a period in which electronic watermark information is superimposed on the information signal and other values of one-bit information are expressed by a period in which the electronic watermark information is not superimposed.

摘要翻译： 一种用于以电子水印的形式发送信息信号和附加信息的附加信息传输方法。 电子水印信息被生成并叠加在信息信号上用于发送，以形成对应于第一附加信息的叠加/非叠加模式，并且在信息信号上发送第二附加信息，使得一位信息的一个值被表达 在电子水印信息叠加在信息信号上的时间段和一位信息的其他值由电子水印信息不叠加的周期表示。