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61. 发明授权

US06834349B1 Copyright protection system for data storage and transmission 有权
标题翻译：版权保护系统，用于数据存储和传输
公开(公告)号：US06834349B1
公开(公告)日：2004-12-21
申请号：US09513693
申请日：2000-02-25
申请人： Seiji Higurashi , Takayuki Sugahara
发明人： Seiji Higurashi , Takayuki Sugahara
IPC分类号： G06F1214
CPC分类号： H04L12/40104 , H04L12/40117 , H04N5/913 , H04N9/8042 , H04N2005/91328 , H04N2005/91335 , H04N2005/91364
摘要： The invention provides a recording media player and a recording media recorder provided with a high-security copy protection system of less complexity. A recording media player and/or recorder provided with a copy protection system stubborn to attacks and highly flexible in dealing with recording media of various copy conditions. For this purpose, various distributed copyright protection information (DCPI) values are used. The DCPI values include water marks in case of an MPEG stream, Copy Generation Management System (CGMS) codes, EMI (encryption mode indicator) in case of an IEEE 1394-1995 interface, and user defined DCPI values. The recording is achieved such that DCPI values are recorded in user-unrewritable (or user-inaccessible) areas of the recording medium as long as possible.
摘要翻译：本发明提供一种具有较低复杂度的高安全性复制保护系统的记录媒体播放器和记录媒体记录器。一种记录媒体播放器和/或记录器，该记录媒体播放器和/或记录器具有顽固的攻击和高灵活性的复制保护系统，以处理各种复制条件的记录介质。为此，使用各种分布式版权保护信息（DCPI）值。 DCPI值包括在MPEG流的情况下的水痕，在IEEE 1394-1995接口的情况下的复制生成管理系统（CGMS）代码，EMI（加密模式指示符）以及用户定义的DCPI值。实现记录，使得DCPI值尽可能长地记录在记录介质的用户不可重写（或用户不可访问的）区域中。

62. 发明授权

US06381281B1 Information compressing apparatus 有权
标题翻译：信息压缩装置
公开(公告)号：US06381281B1
公开(公告)日：2002-04-30
申请号：US09457365
申请日：1999-12-09
申请人： Seiji Higurashi
发明人： Seiji Higurashi
IPC分类号： H04N712
CPC分类号： H04N21/242 , H04N21/4302
摘要： Detection is made as to whether or not a first video signal becomes discontinuous and hence a defective frame picture occurs in a stream of frame pictures represented by the first video signal. The defective frame picture is removed from the stream of frame pictures to change the first video signal into a second video signal representing the stream of frame pictures except the defective frame picture. A first audio signal is divided into a second audio signal and a third audio signal. The second audio signal occurs until the first video signal becomes discontinuous. The third audio signal occurs after the first video signal becomes discontinuous. A memory stores the second audio signal. The second audio signal stored by the memory and the third audio signal are mixed into a fourth audio signal to fade in the third audio signal and to fade out the second audio signal in the fourth audio signal.
摘要翻译：检测第一视频信号是否变得不连续，因此在由第一视频信号表示的帧图像的流中出现有缺陷的帧图像。从帧图像流中去除缺陷帧图像，以将第一视频信号改变为表示除了缺陷帧图像之外的帧图像流的第二视频信号。第一音频信号被分成第二音频信号和第三音频信号。第二音频信号发生直到第一视频信号变得不连续。第三音频信号在第一视频信号变得不连续之后发生。存储器存储第二音频信号。由存储器和第三音频信号存储的第二音频信号被混合成第四音频信号以淡入第三音频信号并且在第四音频信号中淡出第二音频信号。

63. 发明授权

US6031679A Magnetic recording/reproducing apparatus capable of reproducing digital data at minimum error rate 失效
标题翻译：能够以最小错误率再现数字数据的磁记录/重放装置
公开(公告)号：US6031679A
公开(公告)日：2000-02-29
申请号：US961919
申请日：1997-10-31
申请人： Seiji Higurashi
发明人： Seiji Higurashi
IPC分类号： G11B5/008 , G11B5/53 , G11B15/12 , G11B15/18 , G11B15/44 , G11B15/467 , H04N5/7826 , H04N5/926
CPC分类号： H04N5/926 , G11B15/125 , G11B15/18 , G11B15/1875 , G11B15/44 , G11B15/4671 , G11B5/0086 , G11B5/534 , H04N5/78263
摘要： A magnetic recording/reproduction apparatus is provided which is designed to record and reproduce digital information signals on and from a magnetic tape at a reduced error rate in a long play mode. When the long play mode is entered, the travel speed of the magnetic tape is changed to 1/(2n) (n=a natural number) times that in a normal play mode, and the rotational speed of a rotary drum is changed to (2n+1)/(2n) times that in the normal play mode. Tracks are written on the magnetic tape with alternate helical scans of a pair of rotary heads, one every (2n+1)/2 rotations of the rotary drum to record the digital information signals on the tracks. In an alternative form of the invention, digital information signals are recorded on the magnetic tape in the long play mode using a third rotary head and one of the pair of the rotary heads. The third rotary head is mounted on the rotary drum at a given angular interval away from the one of the pair of the rotary heads in a height relation which allows tracks to be written on the magnetic tape in the long play mode at the same track pitch as that in the normal play mode.
摘要翻译：提供了一种磁记录/再现装置，其被设计为在长播放模式下以降低的错误率在磁带上记录和再现数字信息信号。当进入长时间播放模式时，磁带的移动速度被改变为正常播放模式下的1 /（2n）（n =自然数）的倍数，旋转磁鼓的转速变为（ 2n + 1）/（2n）倍。轨道用一对旋转磁头的交替螺旋扫描写在磁带上，旋转磁鼓每（2n + 1）/ 2旋转一次，以在轨道上记录数字信息信号。在本发明的替代形式中，数字信息信号以长播放模式使用第三旋转磁头和一对旋转磁头之一记录在磁带上。第三旋转磁头以一定的角度间隔以一定的角度间隔安装在旋转磁鼓上，高度关系允许以相同轨道间距以长播放模式将磁迹写入磁带如在正常播放模式。

64. 发明授权

US5633684A Image information compression and decompression device 失效
标题翻译：图像信息压缩和解压缩装置
公开(公告)号：US5633684A
公开(公告)日：1997-05-27
申请号：US365079
申请日：1994-12-28
申请人： Yasuhiko Teranishi , Seiji Higurashi , Mitsuo Harumatsu
发明人： Yasuhiko Teranishi , Seiji Higurashi , Mitsuo Harumatsu
IPC分类号： H04N19/60 , H04N19/423 , H04N19/503 , H04N19/51 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/635 , H04N19/85 , H04N7/18
CPC分类号： H04N19/577 , H04N19/53 , H04N19/61 , H04N19/63
摘要： An image information compression and decompression device produces a low frequency band signal suitable for reproduction of a standard definition (SD) image and a combined high frequency band signal which, when processed together with the low frequency band signal, can reproduce a high definition (HD) image. These signals are derived from a high definition (HD) image signal and are subjected to motion compensation prediction coding. An I picture of the HD image is divided into a plurality of band signals which are coded and quantized by a coding/quantizing circuit. Thus, an intra-plane coding of the divided image signal is performed for the I picture. For a P picture of the HD image, a low frequency band signal is derived and a combined high frequency band signal excluding the low frequency band signal is produced. The low frequency band signal and the combined high frequency band signal are subjected to motion compensation prediction coding by a motion compensation prediction coding circuit. This results in a system which is compatible to both standard and high definition television systems.
摘要翻译：图像信息压缩和解压缩装置产生适合于再现标准清晰度（SD）图像的低频带信号和与低频带信号一起处理的组合高频带信号可以再现高清晰度（HD ）图片。这些信号从高分辨率（HD）图像信号导出，并且经受运动补偿预测编码。 HD图像的I图像被分割成由编码/量化电路编码和量化的多个频带信号。因此，对I图像执行分割图像信号的平面内编码。对于HD图像的P图像，导出低频带信号，并且产生除了低频带信号之外的组合的高频带信号。低频带信号和组合的高频信号由运动补偿预测编码电路进行运动补偿预测编码。这导致与标准和高清晰度电视系统兼容的系统。

65. 发明授权

US5633635A Method of processing code for error checking and code processing circuit 失效
标题翻译：处理代码错误检查和代码处理电路的方法
公开(公告)号：US5633635A
公开(公告)日：1997-05-27
申请号：US310766
申请日：1994-09-27
申请人： Takeo Ohishi , Seiji Higurashi
发明人： Takeo Ohishi , Seiji Higurashi
IPC分类号： G11B20/18 , H03M13/00 , H03M13/35 , H04L1/00
CPC分类号： H04L1/0066 , G11B20/1833 , H03M13/00 , H03M13/35 , H04L1/0041 , H04L1/0057
摘要： A method of generating codes for error checking from a first and second types of data trains, first type of data trains having m symbols, second type of data trains having n symbols, m and n being natural numbers and m
摘要翻译：一种用于从第一和第二类型的数据列生成用于错误检查的代码的方法，具有m个符号的第一类型的数据串，具有n个符号的第二类型的数据串，m和n是自然数，m

66. 发明授权

US5577079A Phase comparing circuit and PLL circuit 失效
标题翻译：相位比较电路和PLL电路
公开(公告)号：US5577079A
公开(公告)日：1996-11-19
申请号：US504470
申请日：1995-07-20
申请人： Yoiti Zenno , Seiji Higurashi
发明人： Yoiti Zenno , Seiji Higurashi
IPC分类号： H03L7/087 , H03D3/24
CPC分类号： H03L7/087
摘要： A phase comparing circuit includes a first device for generating a detection signal in response to a multi-level signal. The detection signal represents whether or not the multi-level signal is in a given level. A second device connected to the first device is operative for generating a first control signal in response to the detection signal generated by the first device and a clock signal. The first control signal represents a time interval between a leading edge of a pulse in the detection signal and a strobe point of the clock signal which immediately follows the leading edge of the pulse in the detection signal. A third device connected to the first device is operative for generating a second control signal in response to the detection signal generated by the first device and the clock signal. The second control signal represents a time interval between the strobe point of the clock signal and a trailing edge of the pulse in the detection signal. A fourth device connected to the second device and the third device for generating a phase error signal in response to the first control signal generated by the second device and the second control signal generated by the third device. The phase error signal represents a difference between a phase of the detection signal generated by the first device and a phase of the clock signal.
摘要翻译：相位比较电路包括响应于多电平信号产生检测信号的第一装置。检测信号表示多电平信号是否在给定电平。连接到第一装置的第二装置用于响应于由第一装置产生的检测信号和时钟信号而产生第一控制信号。第一控制信号表示检测信号中的脉冲的前沿与紧跟在检测信号中脉冲的前沿的时钟信号的选通点之间的时间间隔。连接到第一装置的第三装置用于响应于由第一装置产生的检测信号和时钟信号而产生第二控制信号。第二控制信号表示在检测信号中时钟信号的选通点和脉冲的后沿之间的时间间隔。连接到第二装置和第三装置的第四装置，用于响应于由第二装置产生的第一控制信号和由第三装置产生的第二控制信号产生相位误差信号。相位误差信号表示由第一装置产生的检测信号的相位与时钟信号的相位之差。

67. 发明授权

US5552941A Method of recording/reproducing digital data including recording region allocation 失效
标题翻译：记录/再现包括记录区域分配的数字数据的方法
公开(公告)号：US5552941A
公开(公告)日：1996-09-03
申请号：US278240
申请日：1994-07-21
申请人： Seiji Higurashi , Ohishi Takeo
发明人： Seiji Higurashi , Ohishi Takeo
IPC分类号： G11B20/10 , G11B20/12 , G11B20/18 , G11B23/087 , G11B27/032 , G11B27/036 , G11B27/30 , G11B5/09 , H04N5/76
CPC分类号： G11B27/3027 , G11B20/1208 , G11B20/1813 , G11B23/08714 , G11B27/036 , G11B2220/90 , G11B27/032
摘要： A recording/reproducing method which is capable of responding to the recording of various applications by flexibly changing the format of recording regions on a track of a recording medium. A track 20 is divided into a plurality of recording regions 22-32, and the data format of each recording region is selected in accordance with applications to be recorded. The preamble (or IBG) E.sub.PI is provided at the head portion of a track and the recording region to be independently rewritten or reloaded as occasion demands. A format information D.sub.PI indicating the presence of preamble or IBG is recorded in the data region E.sub.D. By designating required number of recording regions using the preamble (or IBG) E.sub.PI, it becomes possible to flexibly respond to the recording of various applications.
摘要翻译：一种记录/再现方法，其能够通过灵活地改变记录介质的轨道上的记录区域的格式来响应各种应用的记录。轨道20被分成多个记录区域22-32，并且根据要记录的应用来选择每个记录区域的数据格式。前导码（或IBG）EPI设置在轨道的头部，并且根据需要独立地重写或重新加载记录区域。表示前导码或IBG的存在的格式信息DPI被记录在数据区域ED中。通过使用前导码（或IBG）EPI指定所需数量的记录区域，可以灵活地响应各种应用的记录。

68. 发明授权

US5500679A Method and apparatus for deriving a video signal corresponding to a standard definition signal from a high definition signal 失效
标题翻译：用于从高清晰度信号导出与标准清晰度信号对应的视频信号的方法和装置
公开(公告)号：US5500679A
公开(公告)日：1996-03-19
申请号：US314518
申请日：1994-09-28
申请人： Seiji Higurashi , Yasuhiko Teranishi , Yasuaki Yamada , Takeo Ohishi
发明人： Seiji Higurashi , Yasuhiko Teranishi , Yasuaki Yamada , Takeo Ohishi
IPC分类号： H04N7/015 , H04N7/46 , H04N7/01
CPC分类号： H04N19/59 , H04N19/63 , H04N19/30
摘要： A standard definition (SD) corresponding image is derived from a high definition (HD) image by performing a vertical line sub-sampling for every field with a ratio of an N:1, where N is an odd number greater than 1. One of the simple sub-sampling methods, the pyramidal coding method and the sub-band coding method may be used. For first fields, every third line is derived. For the remaining fields, every third line positioned at the center of the lines derived from the first field is derived by taking positional relation thereof on a reproduced image screen into consideration. As a result, it is possible to obtain an SD corresponding image having an unbroken interlace structure.
摘要翻译：通过对N = 1的比例为N的每个场进行垂直线次采样从高分辨率（HD）图像导出标准清晰度（SD）对应图像，其中N是大于1的奇数。可以使用简单的子采样方法，金字塔编码方法和子带编码方法。对于第一个字段，每三行都派生出来。对于剩余的场，考虑到在再现的图像屏幕上的位置关系，导出位于从第一场导出的线的中心的每三行。结果，可以获得具有不间断隔行扫描结构的SD对应图像。

69. 发明授权

US07941030B2 Audio/video recording apparatus, recording method, playback apparatus, playback method, playback program, and recording program 有权
标题翻译：音频/视频记录装置，记录方法，播放装置，播放方法，重放程序和记录程序
公开(公告)号：US07941030B2
公开(公告)日：2011-05-10
申请号：US10551766
申请日：2004-04-02
申请人： Norihiko Fuchigami , Seiji Higurashi
发明人： Norihiko Fuchigami , Seiji Higurashi
IPC分类号： H04N9/80 , H04N5/93 , G11B27/00
CPC分类号： G11B27/034 , G11B27/105 , G11B2220/2562
摘要： At the time of recording, only an edition point is recorded (step S4). At the time of reproduction, overlap time (A_overlap) between an audio frame to be reproduced last and an audio frame to be reproduced first, each including a video connection point is calculated and, further, offset time is calculated on the basis of the overlap time (step S12). Reproducing audio data by using the calculated offset time (step S14) enables reproduction be performed without a gap between audio frames around a connection point. Around connection points, by performing a window function multiplying process on audio data, audio samples are seamlessly connected to each other.
摘要翻译：在记录时，仅记录编辑点（步骤S4）。在再现时，计算要再现的音频帧和首先要再现的音频帧（包括视频连接点）之间的重叠时间（A_overlap），并且还基于重叠来计算偏移时间时间（步骤S12）。通过使用所计算的偏移时间再现音频数据（步骤S14），可以在连接点周围的音频帧之间进行再现。围绕连接点，通过对音频数据执行窗口函数乘法处理，音频样本彼此无缝连接。

70. 发明授权

US07650062B2 Information recording apparatus, information reproducing apparatus, and related computer programs 有权
标题翻译：信息记录装置，信息再现装置和相关计算机程序
公开(公告)号：US07650062B2
公开(公告)日：2010-01-19
申请号：US11324539
申请日：2006-01-04
申请人： Takayuki Sugahara , Seiji Higurashi , Takashi Kuriyama , Terumi Ohara , Namio Yamaguchi
发明人： Takayuki Sugahara , Seiji Higurashi , Takashi Kuriyama , Terumi Ohara , Namio Yamaguchi
IPC分类号： H04N7/00 , H04N5/00
CPC分类号： H04N5/772 , H04N9/8042 , H04N9/8227
摘要： Pictures are captured, and thereby moving-picture data is generated which represents a sequence of moving-picture fields. At least one picture is captured, and thereby still-picture data is generated which represents at least one still-picture frame corresponding in picture capture timing to one of the moving-picture fields represented by the moving-picture data. Components which correspond to said one of the moving-picture fields are removed from the still-picture data to generate supplementary still-picture information. Link information is generated which represents the picture capture timing correspondence between the still-picture frame and said one of the moving-picture fields. The moving-picture data, the supplementary still-picture information, and the link information are recorded on a recording medium.
摘要翻译：拍摄图像，从而生成表示运动图像场序列的运动图像数据。拍摄至少一张照片，从而生成表示与图像拍摄定时对应的至少一个静止图像帧到静止图像数据的静止图像数据到由运动图像数据表示的运动图像场之一。对应于所述运动图像场之一的组件从静止图像数据中去除以产生补充静态图像信息。产生表示静止图像帧和所述运动图像场之一中的图像捕获定时对应关系的链接信息。运动图像数据，辅助静止图像信息和链接信息被记录在记录介质上。

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