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51.发明授权Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor 有权用于嵌入数据的数据传输方法，数据发送和再现装置及其信息记录介质公开(公告)号：US06404781B1
公开(公告)日：2002-06-11
申请号：US09144696
申请日：1998-09-01
IPC分类号： H04J312
CPC分类号： H04N1/32149 , G06T1/0071 , H03M13/13 , H03M13/6306 , H04L1/0045 , H04L1/08 , H04N1/32288 , H04N19/467 , H04N2201/3284
摘要： In a data transmission method for information data containing additional information data therewith, comprising, at a transmitter side, following steps: adding error correction codes for correcting error to said additional information data; embedding said additional information data added with said error correction codes into the information data by plural times, repetitively; and transmitting the information data embedded with the repetitive additional information data therein, and comprising, at a receiver side, following steps: receiving the transmitted information data embedded with the repetitive additional information data therein; detecting the repetitive additional information data embedded from said transmitted information data received; determining said additional information data on a basis of a majority rule when receiving said information data; and correcting error with using the error correction codes received and determined when said additional information data contains error(s) therein.
摘要翻译： 在包含附加信息数据的信息数据的数据传输方法中，包括在发送机侧的以下步骤：将用于纠正错误的纠错码添加到所述附加信息数据;将附加有所述纠错码的所述附加信息数据嵌入到 信息数据多次，重复; 并且在其中发送嵌入有重复附加信息数据的信息数据，并且在接收机侧包括以下步骤：在其中接收嵌入有重复附加信息数据的发送信息数据;检测从所发送的信息数据中嵌入的重复附加信息数据 在接收到所述信息数据时，基于多数规则确定所述附加信息数据; 以及当所述附加信息数据中包含错误时使用接收和确定的纠错码的校正误差。
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公开(公告)号：US06219320B1
公开(公告)日：2001-04-17
申请号：US09048987
申请日：1998-03-27
申请人： Nobutaka Amada , Toshifumi Takeuchi , Takao Arai
发明人： Nobutaka Amada , Toshifumi Takeuchi , Takao Arai
IPC分类号： G11B700
CPC分类号： G11B20/10046 , G11B7/005 , G11B20/10009 , G11B20/10527 , G11B20/1426
摘要： An optical disk medium to which a digital information signal modulated by using a run length limited code in which the minimum run length is d is recorded. The digital information signal is recorded at a bit rate Fb satisfying the equation Fb=K·d·Fm, wherein a cut-off frequency in frequency response of said optical disk medium is Fm, and a value of a coefficient K regarding recording density is larger than 1.
摘要翻译： 记录通过使用其中最小游程长度为d的游程长度受限码调制的数字信息信号的光盘介质。 以符合式Fb = KdFm的比特率Fb记录数字信息信号，其中所述光盘介质的频率响应中的截止频率为Fm，关于记录密度的系数K的值大于1 。
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公开(公告)号：US20080109907A1
公开(公告)日：2008-05-08
申请号：US11968883
申请日：2008-01-03
IPC分类号： H04L9/00
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a scrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译： 一种用于多个设备的数据再现方法，用于通过彼此认证多个设备来发送和接收数据，所述数据再现方法包括：从多个解扰方法中选择与所述数据类型相对应的加扰方法 通过与选择的解扰方法相对应的认证方法执行认证，其中从多种认证方法中选择认证方法，并再现所述数据。
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公开(公告)号：US06728408B1
公开(公告)日：2004-04-27
申请号：US09144467
申请日：1998-09-01
IPC分类号： G06K900
CPC分类号： G06T1/0021 , G06T2201/0051 , G06T2201/0061 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N2201/3233 , H04N2201/327
摘要： A data embedding method and apparatus and a data reproducing method and apparatus are provided which can apply a digital watermark to various contents. Instead of embedding watermarking information in respective pixels or by using a relation between pixels, the watermarking information is embedded as a position pattern of changed pixels in the contents. Reliability comparable with conventional techniques can be obtained irrespective of a change in a smaller number of pixels for the contents.
摘要翻译： 提供了可以将数字水印应用于各种内容的数据嵌入方法和装置以及数据再现方法和装置。 不是将水印信息嵌入各像素中，或者通过使用像素之间的关系，水印信息被嵌入作为内容中的改变像素的位置图案。 可以获得与常规技术相当的可靠性，而不管内容物的较少数量的像素的变化。
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55.发明授权Reproducing method and apparatus, for a video signal having copy control information 有权用于具有复制控制信息的视频信号的再现方法和装置公开(公告)号：US06434322B1
公开(公告)日：2002-08-13
申请号：US09148325
申请日：1998-09-04
申请人： Hiroyuki Kimura , Takao Arai , Toshifumi Takeuchi
发明人： Hiroyuki Kimura , Takao Arai , Toshifumi Takeuchi
IPC分类号： H04N591
CPC分类号： G06T1/0028 , G11B20/00086 , G11B20/00768 , G11B20/00884 , H04N5/913 , H04N2005/91328 , H04N2005/91335
摘要： Electronic watermark information obtained by changing a luminance value of a luminance signal in a video signal and a copy generation management signal (CGMS signal) inserted into an area out of a scan region of the video signal are recorded into a recording medium. A reproducing apparatus comprises an electronic watermark information detecting circuit, a CGMS signal detecting circuit, a control circuit to which detected electronic watermark information and CGMS signal are supplied, and a video signal processing circuit controlled by an output of the control circuit. When the electronic watermark information and the CGMS signal have a rational relation, the video signal processing circuit is controlled to output the video signal.
摘要翻译： 将通过改变视频信号中的亮度信号的亮度值和插入到视频信号的扫描区域中的区域中的复制产生管理信号（CGMS信号）获得的电子水印信息被记录在记录介质中。 一种再现装置包括电子水印信息检测电路，CGMS信号检测电路，检测到的电子水印信息和CGMS信号的控制电路以及由控制电路的输出控制的视频信号处理电路。 当电子水印信息和CGMS信号具有合理的关系时，控制视频信号处理电路输出视频信号。
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公开(公告)号：US5987066A
公开(公告)日：1999-11-16
申请号：US759956
申请日：1996-12-03
申请人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
发明人： Tadashi Kojima , Koichi Hirayama , Hisashi Yamada , Yoshiaki Moriyama , Fumihiko Yokogawa , Takao Arai , Toshifumi Takeuchi , Shinichi Tanaka , Akira Kurahashi , Toshiyuki Shimada
IPC分类号： G11B20/14 , H03M5/14 , H03M7/14 , H04L7/04 , H04L7/08 , H04L25/49 , H04B14/04 , G11B3/90 , G11B5/09
CPC分类号： H03M5/145 , G11B20/1426 , H04L25/4906 , H04L7/041
摘要： A transmitting method of digital data whereby information data can be reproduced at a high precision. In order to retain digital data in sectors comprising a plurality of sync frames and sequentially transmit, the sync frame is comprised of the sync signal and the run length limited code which satisfies the limitations of the minimum run length and the maximum run length, and the sync signal includes the sync pattern constituted by a bit pattern of a run length that is longer than the maximum run length by only 3T and addition bit patterns which are arranged before and after the bit pattern and each of which has a run length that is longer than the minimum run length. The sync signal includes a specific code which indicates a position in the sector and which enables the DC control to be performed.
摘要翻译： 数字数据的发送方法，可以高精度地再现信息数据。 为了在包括多个同步帧的扇区中保留数字数据并顺序地发送，同步帧包括满足最小游程长度和最大游程长度的限制的同步信号和游程长度限制码，并且 同步信号包括由游程长度比最大游程长度只有3T的游程长度的位模式构成的同步模式，以及排列在位模式之前和之后的游程长度更长的相加位模式 比最小游程长。 同步信号包括指示扇区中的位置并且能够执行DC控制的特定代码。
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公开(公告)号：US5706385A
公开(公告)日：1998-01-06
申请号：US351649
申请日：1994-12-07
IPC分类号： H04N5/782 , H04N5/7826 , H04N5/783 , H04N5/913 , H04N9/79 , H04N9/797 , H04N9/802 , H04N9/804 , H04N9/83 , H04N9/87 , H04N15/226 , H04N5/11 , H04N9/99
CPC分类号： H04N5/78263 , H04N9/7973 , H04N9/802 , H04N9/8042 , H04N9/83 , H04N2005/91364 , H04N5/78213 , H04N5/783 , H04N5/913 , H04N9/7904 , H04N9/87
摘要： A rotary head type magnetic recording and reproducing apparatus for recording and reproducing an analog wide-band video signal, audio signal and compressed digital signal on the same recording medium. The modulated analog wide-band video signal or the narrow-band-converted compressed digital signal is recorded on two video tracks adjacent to each other on a magnetic tape by magnetic heads on a rotary drum.
摘要翻译： 用于在相同记录介质上记录和再现模拟宽带视频信号，音频信号和压缩数字信号的旋转磁头式磁记录和再现装置。 经调制的模拟宽带视频信号或窄带转换的压缩数字信号通过旋转磁鼓上的磁头在磁带上彼此相邻的两个视频轨道上记录。
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公开(公告)号：US5414567A
公开(公告)日：1995-05-09
申请号：US625822
申请日：1990-12-11
申请人： Nobutaka Amada , Toshifumi Takeuchi , Akira Abeta , Takao Arai , Kouei Usuda
发明人： Nobutaka Amada , Toshifumi Takeuchi , Akira Abeta , Takao Arai , Kouei Usuda
CPC分类号： H04N9/835 , G11B20/10 , H04N5/78213 , H04N9/802
摘要： A magnetic recording method and apparatus which performs a quadrature phase shift keying operation on a digital information signal, superimposes a high frequency bias signal on the performed signal, records the resulting signal into a deep portion of a magnetic layer of a magnetic tape with a first rotational head, and records a video signal in a surface portion of the magnetic layer above a track formed by the former recording, with a second rotational head which is different in azimuth angle from the first rotational head, the frequency of the high frequency bias signal being set to a value which is about four times as high as the carrier frequency of the quadrature phase shift keyed digital information signal, thereby eliminating a 5th-order distortion component due to cross modulation of the high frequency bias signal and the carrier frequency.
摘要翻译： 对数字信息信号执行正交相移键控操作的磁记录方法和装置，在所执行的信号上叠加高频偏置信号，将所得到的信号记录在磁带的磁性层的深部，第一 旋转头，并且利用与第一旋转头的方位角不同的第二旋转头将磁性层的表面部分中的视频信号记录在由前一记录形成的轨道上，高频偏置信号的频率 被设置为正交相移键控数字信息信号的载波频率的约四倍的值，从而消除由于高频偏置信号和载波频率的交叉调制引起的5阶失真分量。
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公开(公告)号：US08074071B2
公开(公告)日：2011-12-06
申请号：US12840726
申请日：2010-07-21
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A system effecting a data reproducing method for a plurality of devices, for sending and receiving data by authenticating the plurality of devices with each other, said data reproducing method including: selecting, from a plurality of descrambling methods, a descrambling method corresponding to a type of said data, executing authentication by an authenticating method corresponding to the selected descrambling method, where the authenticating method is selected from a plurality of authenticating methods, and reproducing said data.
摘要翻译： 一种影响多个设备的数据再现方法的系统，用于通过彼此认证多个设备来发送和接收数据，所述数据再现方法包括：从多个解扰方法中选择对应于类型的解扰方法 的所述数据，通过与所选择的解扰方法相对应的认证方法执行认证，其中从多种认证方法中选择认证方法，并再现所述数据。
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公开(公告)号：US07379547B2
公开(公告)日：2008-05-27
申请号：US10677359
申请日：2003-10-03
IPC分类号： H04L9/16
CPC分类号： H04N21/4367 , G11B20/00086 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00304 , G11B20/00449 , G11B20/00739 , G11B20/00753 , G11B20/00768 , G11B20/00884 , H04K1/00 , H04L9/32 , H04L2209/603 , H04N5/765 , H04N5/77 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/913 , H04N9/8042 , H04N21/4405 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： A reproducing method and apparatus for receiving and reproducing data and outputting the data into an external device. After reproducing the data, a descrambler corresponding to a type of the reproduced data is selected from a plurality of descramblers and the external device is authenticated by a selected authenticator which is included in a plurality of authenticators for authenticating the external device and corresponds to the selected descrambler, and the data is outputted.
摘要翻译： 一种用于接收和再现数据并将数据输出到外部设备的再现方法和装置。 在再现数据之后，从多个解扰器中选择对应于再现数据类型的解扰器，并且外部设备由包括在多个认证器中的选择认证器进行认证，用于认证外部设备并对应于所选择的 解扰器，并输出数据。
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