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21. 发明授权

US06339449B1 Method and device for superimposing additional information on a video signal 失效
标题翻译：用于在视频信号上叠加附加信息的方法和装置
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。

22. 发明授权

US06295303B1 Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal 失效
标题翻译：在视频信号上叠加附加信息信号并从所述视频信号检测所述附加信息的方法和装置
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。

23. 发明授权

US07023991B1 Method and apparatus for digital signal processing 有权
标题翻译：数字信号处理方法和装置
公开(公告)号：US07023991B1
公开(公告)日：2006-04-04
申请号：US09889374
申请日：2000-11-17
申请人： Masashi Nakamura , Hisayoshi Moriwaki , Sunao Furui , Ichiro Hamada
发明人： Masashi Nakamura , Hisayoshi Moriwaki , Sunao Furui , Ichiro Hamada
IPC分类号： H04K1/06 , H04K1/04
CPC分类号： H04N21/418 , H04N5/4401 , H04N5/46 , H04N7/163 , H04N7/1675 , H04N21/42607 , H04N21/4408 , H04N21/44231 , H04N21/8166 , H04N2005/4441
摘要： Elements necessary for a digital television receiver are structured as a plurality of digital signal processing blocks and a host arithmetic operation processing block. The blocks are connected through a general purpose bus. Commands for controlling operations of the blocks and data of a stream are transferred through the bus. When an encryption encoder/decode is disposed in each block, contents transferred through the bus can be protected. When an encryption encoder/decode circuit is disposed in an interface to which an extension plug-in card is attached, contents that are output from the interface can be protected.
摘要翻译：数字电视接收机所需的元件被构造为多个数字信号处理块和主算术运算处理块。这些块通过通用总线连接。用于控制流的块和数据的操作的命令通过总线传送。当在每个块中设置加密编码器/解码器时，可以保护通过总线传送的内容。当加密编码器/解码电路被布置在附接有扩展插件卡的接口中时，可以保护从接口输出的内容。

24. 发明授权

US06359999B1 Method of adding information to video signal and information adding device 失效
标题翻译：将信息添加到视频信号和信息添加设备的方法
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。

25. 发明授权

US06341141B1 Method and apparatus for detecting spectrum spread signals 失效
标题翻译：用于检测频谱扩展信号的方法和装置
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。

26. 发明授权

US6163565A Additional information signal superimposing and detecting system additional information signal superimposing and detecting method and additional information signal detecting method and apparatus therefor 失效
标题翻译：附加信息信号叠加和检测系统附加信息信号叠加和检测方法及附加信息信号检测方法及装置
公开(公告)号：US6163565A
公开(公告)日：2000-12-19
申请号：US143963
申请日：1998-08-31
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： G11B20/10 , H03M7/30 , H04N5/913 , H04N9/804 , H04N5/91
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 to convert a 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 a chip value for transmission. The 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，并且在块中执行离散余弦变换（DCT）处理，以将视频信号从时基区域信号转换成频率的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传输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，并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。

27. 发明授权

US4748628A Method and apparatus for correcting errors in digital audio signals 失效
标题翻译：用于校正数字音频信号中的误差的方法和装置
公开(公告)号：US4748628A
公开(公告)日：1988-05-31
申请号：US921529
申请日：1986-10-22
申请人： Hisayoshi Moriwaki
发明人： Hisayoshi Moriwaki
IPC分类号： G11B20/18 , G06F11/00
CPC分类号： G11B20/1809
摘要： In correcting errors in a received digital data signal having information data a pair of parity series P and Q determined by the information data and a CRC code determined by the information data and the parity series; a parity check operation is performed for checking errors in either the parity series P or Q of the received digital data signal, error correcting operation is performed for correcting erroneous data of either the P series or the Q series data on the basis of an error pointer generated by the CRC code included in the received digital data signal, and a sequence of the parity check and error correcting operations is established for interposing at least one parity check operation among a series of error correcting operations.
摘要翻译：在具有由信息数据确定的一对奇偶校验序列P和Q的信息数据和由信息数据和奇偶校验序列确定的CRC码的接收数字数据信号中进行校正误差; 执行奇偶校验操作以检查接收的数字数据信号的奇偶校验序列P或Q中的错误，执行纠错操作，用于基于错误指针校正P系列或Q系列数据中的错误数据由接收到的数字数据信号中包含的CRC码生成，并且建立奇偶校验和纠错操作的序列，用于在一系列纠错操作中插入至少一个奇偶校验操作。

28. 发明授权

US06782191B1 Additional information superposing method, information signal copy control method, information signal output device and information signal recording device 失效
标题翻译：附加信息叠加方法，信息信号复制控制方法，信息信号输出装置和信息信号记录装置
公开(公告)号：US06782191B1
公开(公告)日：2004-08-24
申请号：US09442515
申请日：1999-11-18
申请人： Nozomu Ikeda , Akira Ogino , Hisayoshi Moriwaki
发明人： Nozomu Ikeda , Akira Ogino , Hisayoshi Moriwaki
IPC分类号： H04N900
CPC分类号： G06T1/0071 , G06T2201/0052 , G11B20/00086 , G11B20/00768 , G11B20/00913 , H04L12/40104 , H04L12/40117 , H04N7/08 , H04N7/088 , H04N21/23892 , H04N21/8358
摘要： An image signal to be outputted is divided into two areas or a first area and a second area. In an electronic watermarking information forming section (WM forming section), a spectrum spread signal (electronic watermarking information) is formed as the first additional information so as to be superposed on the first area of the image signal. The spectrum spread signal is superposed on the first area of the image signal by an electronic watermarking information superposing section (WM superposing section). Moreover, in the case where the image signal is recorded on a recording medium, for example, the second additional information is newly superposed on the second area of the image signal. Thus, deterioration of the information signal is suppressed at minimum, and first and second additional information are superposed on the information signal to be capable of transmitting the information signal.
摘要翻译：要输出的图像信号被分成两个区域或第一区域和第二区域。在电子水印信息形成部（WM形成部）中，形成频谱扩展信号（电子水印信息）作为第一附加信息，以叠加在图像信号的第一区域上。频谱扩展信号由电子水印信息叠加部分（WM叠加部分）叠加在图像信号的第一区域上。此外，在将图像信号记录在记录介质上的情况下，例如，第二附加信息被新叠加在图像信号的第二区域上。因此，信息信号的劣化被抑制到最小，并且第一和第二附加信息叠加在信息信号上以能够发送信息信号。

29. 发明授权

US06470137B1 Method and apparatus for superimposing a level changed spectrum spread additional information signal on a video signal 失效
标题翻译：将电平改变的频谱扩展附加信息信号叠加在视频信号上的方法和装置
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。

30. 发明授权

US06466617B1 Additional information signal superimposing and detecting system, additional information superimposing and detecting method, and additional information signal detecting method and apparatus therefor 失效
标题翻译：附加信息信号叠加和检测系统，附加信息叠加和检测方法，以及附加信息信号检测方法及装置
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。

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