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：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：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：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。

公开(公告)号：US06359905B1

公开(公告)日：2002-03-19

申请号：US09143387

申请日：1998-08-28

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

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

IPC分类号： H04J1302

CPC分类号： G11B20/00913 ,  G11B20/00086 ,  H04B1/707 ,  H04N5/913 ,  H04N2005/9135

摘要： In an SS additional information detecting unit, detection of a correlation between an image signal Si superimposed with a copying preventive control signal which is spectrum-spread and a PN code series is carried out at every vertical section. In the case where a correlation value between the copying preventive control signal which is superimposed on the image signal Si and is spectrum-spread and a PN code for inverse spreading does not exceed a predetermined threshold value, the correlation value calculated at every vertical section is added. The copying preventive control signal which is spectrum-spread and is superimposed on the image signal is detected by changing the threshold value of whether the correlation between the copying preventive control signal which is superimposed on the image signal Si and is spectrum-spread and the PN code for inverse spreading is established in accordance with a number of vertical sections constituting an object of detecting the correlation. Thereby, the spectrum spread signal can be detected even in the case where the spectrum spread signal is deteriorated.

摘要翻译： 在SS附加信息检测单元中，在每个垂直部分执行与叠加的复制防止控制信号叠加的图像信号Si与PN码序列之间的相关性的检测。 在叠加在图像信号Si上并且被扩频的复制预防控制信号与用于反扩频的PN码之间的相关值不超过预定阈值的情况下，在每个垂直部分计算的相关值为 添加。 通过改变叠加在图像信号Si上的复制预防控制信号与频谱扩展之间的相关性与PN频谱扩展之间的相关性的阈值来检测频谱扩展并叠加在图像信号上的复制预防控制信号 根据构成检测相关性的对象的垂直部分的数量建立用于反向扩展的代码。 因此，即使在频谱扩展信号劣化的情况下也能够检测出频谱扩展信号。

公开(公告)号：US06359999B1

公开(公告)日：2002-03-19

申请号：US09151272

申请日：1998-09-11

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： G06K900

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

摘要： When a spectrally spread additional information signal, obtained by spectrum spreading additional information such as an anti-duplication control signal or copyright information, is superimposed on a video signal, the level of the spectrally spread additional information signal is controlled according to the scatter of pixel values in each block comprising plural pixels. The sensitivity of detecting additional information from the spectrally spread additional information signal is therefore improved, and the visual effect of the spectrally spread additional information signal on a reproduced image is suppressed.

摘要翻译： 当通过频谱扩展附加信息（例如反复制控制信号或版权信息）获得的频谱扩展的附加信息信号叠加在视频信号上时，根据像素的散射来控制频谱扩展的附加信息信号的电平 每个块中的值包括多个像素。 因此，提高了从频谱扩展的附加信息信号检测附加信息的灵敏度，并且抑制了再现图像上的频谱扩展的附加信息信号的视觉效果。

公开(公告)号：US06341141B1

公开(公告)日：2002-01-22

申请号：US09143386

申请日：1998-08-28

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

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

IPC分类号： H04L2730

CPC分类号： G11B20/00913 ,  H04B1/707

摘要： A method and apparatus for detecting spectrum spread signals by reducing the correlation between the main information signal and the spread signal as much as possible, whereby the detection of a spectrum spread signal is made easier. From an input signal, in which a spectrum spread signal obtained by spectrum spreading an additional information signal has been superimposed on a main information signal, the spectrum spread signal is detected. Using a level adjusting circuit, the gain of the input signal, mainly the main information signal is controlled to reduce the change in the main information signal, or the input signal is sliced at a predetermined level by a slicing circuit to fetch a signal at a predetermined level or lower. A spectrum spread signal detecting unit performs an inverse spectrum spread on an input signal in which the change in the main information signal is reduced, or an input signal with the major portion of the main information signal removed to thereby detect the additional information spectrum spread signal.

摘要翻译： 一种用于通过尽可能减小主信息信号和扩展信号之间的相关性来检测频谱扩展信号的方法和装置，从而使频谱扩展信号的检测变得更容易。 从通过频谱扩展获得的频谱扩展信号已经叠加在主信息信号上的输入信号，检测到频谱扩展信号。 使用电平调节电路，控制输入信号的增益，主要是主信息信号，以减小主信息信号的变化，或者通过限幅电路将输入信号以预定电平分片，以在 预定水平或更低。 频谱扩展信号检测单元对主信息信号的变化减小的输入信号或主信息信号的主要部分的输入信号进行逆频谱扩展，从而检测附加信息频谱扩展信号 。