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61. 发明授权

US06584046B2 Method for reproducing information data from magneto-optical recording medium using linear polarized beam 有权
标题翻译：使用线性偏振光束从磁光记录介质再现信息数据的方法
公开(公告)号：US06584046B2
公开(公告)日：2003-06-24
申请号：US09833995
申请日：2001-04-12
申请人： Mitsuaki Oshima , Shinichi Konishi , Shin-ichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshiho Gotoh , Yoshinari Takemura , Norio Miyatake , Motoyoshi Murakami
发明人： Mitsuaki Oshima , Shinichi Konishi , Shin-ichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshiho Gotoh , Yoshinari Takemura , Norio Miyatake , Motoyoshi Murakami
IPC分类号： G11B1100
CPC分类号： G11B23/281 , G06T1/0021 , G06T2201/0064 , G11B7/0037 , G11B7/0045 , G11B7/00736 , G11B7/24 , G11B11/10506 , G11B11/10515 , G11B11/10584 , G11B11/10595 , G11B20/00086 , G11B20/00123 , G11B20/00166 , G11B20/00181 , G11B20/0021 , G11B20/00231 , G11B20/0026 , G11B20/00268 , G11B20/00347 , G11B20/00876 , G11B20/00884 , G11B20/10 , G11B20/1217 , G11B20/1258 , G11B23/288 , G11B23/40 , G11B2020/122 , G11B2020/1244 , G11B2020/1245
摘要： A method for reproducing write-once information from an optical disk. The disk includes a disk substrate and a recording layer on the disk substrate, the recording layer including a magnetic film with a magnetic anisotropy in a direction perpendicular to a surface of the magnetic film. Write-once information formed by first recording areas and second recording areas is stored in a pre-determined portion of said recording layer, the first and second recording areas having different magnetic anisotropies in a direction perpendicular to a surface of the magnetic film. The method includes irradiating linearly polarized laser light onto said pre-determined portion, and detecting a rotational change in a polarization orientation of light reflected from the optical disk or light transmitted through the optical disk, the rotational change being caused depending on which of the first recording area and the second recording area is irradiated with the linearly polarized laser light.
摘要翻译：一种用于从光盘再现一次写入信息的方法。盘包括盘基片和磁盘基片上的记录层，记录层包括在垂直于磁性膜表面的方向上具有磁各向异性的磁性膜。由第一记录区域和第二记录区域形成的一次写入信息被存储在所述记录层的预定部分中，第一和第二记录区域在垂直于磁性膜表面的方向上具有不同的磁各向异性。该方法包括将线性偏振激光照射到所述预定部分上，并且检测从光盘反射的光的偏振取向的旋转变化或透过光盘的光，旋转变化取决于第一记录区域和第二记录区域被线偏振激光照射。

62. 发明授权

US06438096B1 Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks and clock synchronization 有权
标题翻译：使用与多个地址块相反地移位的多个地址块组和时钟同步的光盘和记录/再现装置
公开(公告)号：US06438096B1
公开(公告)日：2002-08-20
申请号：US09570615
申请日：2000-05-12
申请人： Yoshinari Takemura , Shigeru Furumiya , Takashi Ishida , Yoshito Aoki , Shunji Ohara , Yuichi Kamioka , Toyoji Gushima
发明人： Yoshinari Takemura , Shigeru Furumiya , Takashi Ishida , Yoshito Aoki , Shunji Ohara , Yuichi Kamioka , Toyoji Gushima
IPC分类号： G11B724
CPC分类号： G11B7/0901 , G11B7/00718 , G11B7/00745 , G11B7/0938 , G11B20/1252 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2020/1232 , G11B2020/1239 , G11B2020/1267 , G11B2020/1274 , G11B2020/1287 , G11B2220/20 , G11B2220/216 , G11B2220/2537
摘要： Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.
摘要翻译：地址组由地址块16,17,18和19中的两个组成，其中地址块16,17,18和19被布置在扇区地址区5中，并且包括地址号13的可识别信息和重叠的连续数地址组被设置成使得每个组沿着半径方向从轨道中心2向内周侧或外周侧交替地移动宽度大致等于轨道间距的一半的宽度。

63. 发明授权

US06301569B1 Optical disk, optical recorder, optical reproducer, cryptocommunication system and program license system 有权
标题翻译：光盘，光记录仪，光学再现器，密码通信系统和程序许可证系统
公开(公告)号：US06301569B1
公开(公告)日：2001-10-09
申请号：US09450437
申请日：1999-11-30
申请人： Mitsuaki Oshima , Yoshiro Gotoh , Shinichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshinari Takemura
发明人： Mitsuaki Oshima , Yoshiro Gotoh , Shinichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshinari Takemura
IPC分类号： G11B700
CPC分类号： G11B27/24 , G06F21/10 , G06F2221/0711 , G06K1/126 , G06K19/04 , G06K19/06028 , G06K19/08 , G06K19/14 , G06K2019/06271 , G11B5/86 , G11B7/0037 , G11B7/005 , G11B7/00736 , G11B7/26 , G11B13/04 , G11B13/045 , G11B19/04 , G11B19/12 , G11B19/122 , G11B20/00086 , G11B20/00094 , G11B20/00115 , G11B20/00123 , G11B20/00137 , G11B20/00144 , G11B20/00152 , G11B20/00173 , G11B20/00181 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00224 , G11B20/00253 , G11B20/0026 , G11B20/00268 , G11B20/00326 , G11B20/00347 , G11B20/00492 , G11B20/00514 , G11B20/00528 , G11B20/00543 , G11B20/00586 , G11B20/0071 , G11B20/0084 , G11B20/00855 , G11B20/00876 , G11B20/10 , G11B20/1217 , G11B20/1252 , G11B20/1403 , G11B20/1426 , G11B20/1833 , G11B23/0042 , G11B23/284 , G11B23/30 , G11B23/38 , G11B2007/0013 , G11B2020/1259 , G11B2220/2545 , G11B2220/2562
摘要： A device for recording information on an optical disk having first and second recording areas, which device can record information using a first modulation method into a first recording area, read disk identification information recorded by a second modulation method in a second recording area, encrypt information using both a cipher key and disk identification information unique to the optical disk, and permit recording of such encrypted information after confirming the content of a recording permission code in an input signal for recording.
摘要翻译：一种用于在具有第一和第二记录区域的光盘上记录信息的装置，该设备可以使用第一调制方法将信息记录到第一记录区域中，在第二记录区域中读取通过第二调制方法记录的盘识别信息，加密信息使用光盘唯一的加密密钥和磁盘识别信息，并且在确认记录的输入信号中的记录许可代码的内容之后允许记录这样的加密信息。

64. 发明授权

US06172960B2 Optical disk and recording/reproducing apparatus using multiple address block groups shifted oppositely with multiple address blocks 有权
标题翻译：使用与多个地址块相反移位的多个地址块组的光盘和记录/再现装置
公开(公告)号：US06172960B2
公开(公告)日：2001-01-09
申请号：US09171044
申请日：1999-01-04
申请人： Yoshinari Takemura , Shigeru Furumiya , Takashi Ishida , Yoshito Aoki , Shunji Ohara , Yuichi Kamioka , Toyoji Gushima
发明人： Yoshinari Takemura , Shigeru Furumiya , Takashi Ishida , Yoshito Aoki , Shunji Ohara , Yuichi Kamioka , Toyoji Gushima
IPC分类号： G11B724
CPC分类号： G11B7/0901 , G11B7/00718 , G11B7/00745 , G11B7/0938 , G11B20/1252 , G11B27/19 , G11B27/24 , G11B27/3027 , G11B2020/1232 , G11B2020/1239 , G11B2020/1267 , G11B2020/1274 , G11B2020/1287 , G11B2220/20 , G11B2220/216 , G11B2220/2537
摘要： Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.
摘要翻译：地址组由地址块16,17,18和19中的两个组成，其中地址块16,17,18和19被布置在扇区地址区5中，并且包括地址号13的可识别信息和重叠的连续数地址组被设置成使得每个组沿着半径方向从轨道中心2向内周侧或外周侧交替地移动宽度大致等于轨道间距的一半的宽度。

65. 发明授权

US5838658A Optical disc 失效
标题翻译：光盘
公开(公告)号：US5838658A
公开(公告)日：1998-11-17
申请号：US883173
申请日：1997-06-26
申请人： Kazuhiko Nakane , Hiroyuki Ohata , Masato Nagasawa , Kenji Gotoh , Yoshinobu Ishida , Isao Satoh , Shunji Ohara , Takashi Ishida , Yoshinari Takemura
发明人： Kazuhiko Nakane , Hiroyuki Ohata , Masato Nagasawa , Kenji Gotoh , Yoshinobu Ishida , Isao Satoh , Shunji Ohara , Takashi Ishida , Yoshinari Takemura
IPC分类号： G11B20/12 , G06F20060101 , G06F17/30 , G11B7/00 , G11B7/007 , G11B7/08 , G11B7/24073 , G11B20/18 , G11B27/24 , G11B27/30 , H04N20060101 , H04N7/62
CPC分类号： G11B27/3027 , G11B27/24 , G11B7/00718 , G11B7/00745 , G11B2220/216 , G11B2220/2562
摘要： An optical disc using a single-spiral land and groove track format and an address signal enabling simple sector address management and format compatibility with read-only optical disc media is disclosed. Four physical address areas PID1-PID4 are recorded to a header area such that PID1 and PID2 are offset one-half track pitch toward the outside circumference of the disc from the groove track center, and PID3 and PID4 are offset one-half track pitch toward the inside circumference of the disc from the groove track center, and the header area is shared by groove track sectors and land track sectors. A groove track sector address is written to PID3 and PID4, and the sector address of the land track sector adjacent on the outside circumference side of that groove sector is written to PID1 and PID2. The address of each sector increases 1 in the same sequence as the sectors are formed in the recording spiral.
摘要翻译：公开了一种使用单螺旋焊盘和凹槽磁道格式的光盘以及能够实现简单的扇区地址管理和与只读光盘介质的格式兼容性的地址信号。四个物理地址区域PID1-PID4被记录到标题区域，使得PID1和PID2从凹槽轨道中心向盘的外圆周偏移二分之一的轨道间距，并且PID3和PID4偏移一半的轨道间距盘从槽轨道中心的内周，并且标头区域由凹槽轨道扇区和脊轨道扇区共享。凹槽轨道扇区地址被写入PID3和PID4，并且在该凹槽扇区的外圆周侧相邻的脊轨道扇区的扇区地址被写入PID1和PID2。每个扇区的地址以与记录螺旋形成的扇区相同的顺序增加1。

66. 发明授权

US5815209A Encoding method, an encoding apparatus, a decoding method and a decoding apparatus for a moving picture 失效
标题翻译：编码方法，编码装置，解码方法和用于运动图像的解码装置
公开(公告)号：US5815209A
公开(公告)日：1998-09-29
申请号：US854758
申请日：1997-05-12
申请人： Satoshi Kondo , Yoshinari Takemura , Ryoji Yamaguchi , Hiroyuki Suzuki
发明人： Satoshi Kondo , Yoshinari Takemura , Ryoji Yamaguchi , Hiroyuki Suzuki
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50 , H04N7/54 , H04N7/56 , H04N7/30
CPC分类号： H04N7/56 , H04N19/423 , H04N19/436 , H04N19/61 , H04N7/54 , H04N19/30
摘要： A method for encoding a picture based on an intra-picture coding and an inter-picture prediction coding having an absolute value of a maximum range of motion compensation between continuous pictures in terms of time being H pixels (H: a positive integer) in a first direction and V pixels (V: a positive integer) in a second direction, the method includes the steps of: receiving a picture and judging whether the picture is directly/indirectly referred to by a further picture among the continuous pictures in terms of time or not; determining a maximum distance L (L: a positive integer) between the picture and the further picture directly/indirectly referring to the picture; dividing the picture into a first to an Nth sub-pictures (N: an integer equal to or larger than 2), a size of the first to the Nth sub-pictures being larger by at least L.times.V pixels in the first direction or at least L.times.H pixels in the second direction as compared with a region of a case where the picture is equally divided into N regions which do not overlap each other; generating a first to an Nth code sequences corresponding to the respective first to the Nth sub-pictures by encoding the first to the Nth sub-pictures based on the intra-picture coding and the inter-picture prediction coding; and adding information indicating positions of the first to the Nth code sequences in the picture.
摘要翻译：一种基于图像内编码和图像间预测编码的方法，所述图像编码和图像间预测编码在连续图像之间的运动补偿的最大范围的绝对值的时间是H像素（H：正整数）第一方向和V像素（V：正整数），该方法包括以下步骤：接收图像并根据时间在连续图像中判断图像是否被另外图像直接/间接参照或不; 确定直接/间接地参考图像的图片与另外图片之间的最大距离L（L：正整数）; 将图像划分为第一至第N子图像（N：等于或大于2的整数），第一至第N子图像的尺寸在第一方向上至少为L×V像素或至少为与将图像等分成不重叠的N个区域的情况的区域相比，在第二方向上的L×H像素; 通过基于画面内编码和画面间预测编码对第一至第N子画面进行编码，生成与第1至第N子画面对应的第1至第N代码序列; 以及添加指示图片中第一至第N代码序列的位置的信息。

67. 发明授权

US5719843A Method of maximum likelihood decoding and digital information playback apparatus 失效
标题翻译：最大似然解码方法和数字信息播放装置
公开(公告)号：US5719843A
公开(公告)日：1998-02-17
申请号：US668178
申请日：1996-06-21
申请人： Takeshi Nakajima , Shigeru Furumiya , Yoshinari Takemura , Kenji Koishi
发明人： Takeshi Nakajima , Shigeru Furumiya , Yoshinari Takemura , Kenji Koishi
IPC分类号： G11B20/10 , H03M13/41 , G11B7/00
CPC分类号： G11B20/10148 , G11B20/10009 , H03M13/41 , H03M13/4107 , H03M13/6331 , H03M13/6343
摘要： A digital information playback apparatus comprises A/D converter that converts a playback signal into digital data, a maximum likelihood decoder that decodes the quantized data output from the A/D converter to obtain the original digital information, and a timing signal extractor that generates a sampling clock used in the A/D converter, and wherein the maximum likelihood decoder detects the response characteristic of the record/playback system and obtains level fluctuations contained in the playback signal, based on the survival path obtained as a maximum likelihood decoding result, to control the expected multilevel equalized values used in the maximum likelihood decoder, the timing signal extractor obtains level fluctuations, based on the survival path obtained as a maximum likelihood decoding result, and obtains the component of the level fluctuations due to phase shifts of the sampling clock of the VCO to control the phase of the sampling clock of the VCO.
摘要翻译：一种数字信息播放装置，包括将重放信号转换为数字数据的A / D转换器，对从A / D转换器输出的量化数据进行解码以获得原始数字信息的最大似然解码器，以及生成在A / D转换器中使用的采样时钟，其中最大似然解码器基于作为最大似然解码结果获得的生存路径，检测记录/重放系统的响应特性并获得包含在重放信号中的电平波动，控制在最大似然解码器中使用的期望的多级均衡值，定时信号提取器基于作为最大似然解码结果获得的存活路径获得电平波动，并且获得由于采样时钟的相移引起的电平波动的分量的VCO来控制VCO的采样时钟的相位。

68. 发明授权

US5488593A Disc reproducing method and apparatus with multiple heads 失效
标题翻译：具有多个磁头的磁盘重放方法和装置
公开(公告)号：US5488593A
公开(公告)日：1996-01-30
申请号：US165055
申请日：1993-12-10
申请人： Shigeru Furumiya , Yoshinari Takemura
发明人： Shigeru Furumiya , Yoshinari Takemura
IPC分类号： G11B5/09 , G11B7/00 , G11B7/005 , G11B7/14 , G11B19/28 , G11B20/10 , G11B20/12 , G11B20/14
CPC分类号： G11B20/1258 , G11B20/10
摘要： A disc reproducing apparatus for reproducing data stored on plural disc surfaces at a constant linear density comprises: plural heads for reproducing the data on the plural disc surfaces at the same time respectively; a controller for controlling positions of the heads such that a total data rate of data reproduced form the plural heads is constant, each of the disc surfaces being divided into N circumference zones; N signal processing circuits, having N processing speeds corresponding to N data rates corresponding to the N circumference zones, for processing the reproduced data respectively; a switch for supplying the reproduced data to the N signal processing circuits such that data reproduced by each of the plural heads is supplied to any of the N signal processing circuits suitable for the data rate of the supplied data thereto; and a combining circuit for combining the processed data signals from the N signal processing circuits into a combined serial data signal of which data rate corresponds to the total of data rates. A disc reproducing method of reproducing data stored on a plurality of disc surfaces at a constant linear density using N signal processing circuits and the switch is also disclosed.
摘要翻译：用于以恒定线密度再现存储在多个盘表面上的数据的盘再现装置包括：分别同时再现多个盘表面上的数据的多个头; 控制器，用于控制头部的位置，使得从多个头部再现的数据的总数据速率是恒定的，每个盘表面被分成N个圆周区域; N个信号处理电路，具有对应于N个周边区域的N个数据速率的N个处理速度，分别用于处理再现数据; 用于将再现数据提供给N个信号处理电路的开关，使得由多个磁头中的每一个重放的数据被提供给适合于所提供数据的数据速率的N个信号处理电路中的任何一个; 以及组合电路，用于将来自N个信号处理电路的经处理的数据信号组合成数据速率对应于数据速率总和的组合串行数据信号。还公开了使用N个信号处理电路和开关以恒定的线密度再现存储在多个盘表面上的数据的盘再现方法。

69. 发明授权

US5148276A Synchronous signal generator for the muse signal 失效
标题翻译：同步信号发生器用于muse信号
公开(公告)号：US5148276A
公开(公告)日：1992-09-15
申请号：US620194
申请日：1990-11-30
申请人： Shigeru Furumiya , Yoshinari Takemura , Hiromu Kitaura
发明人： Shigeru Furumiya , Yoshinari Takemura , Hiromu Kitaura
IPC分类号： H04N5/08 , H03L7/087 , H03L7/091 , H03L7/199 , H04L7/04 , H04N5/10 , H04N7/015
CPC分类号： H03L7/199 , H03L7/087 , H04N5/10 , H03L7/091
摘要： A synchronous signal generator for use with the MUSE signal in the MUSE system which is a high definition television systems. A PLL circuit including a phase comparator and a voltage-controlled oscillator and a counter, is used to generate a system clock synchronized with an external clock. A frame synchronizing signal detected through a frame sychronization detection circuit from an inputted digital MUSE signal frame-resets the counter through a window circuit. The frame synchronization is established at an accuracy of a set range of the window circuit. Also, in this case, if the sychronization deviates on a clock by clock basis, a sampling phase error from a phase error computing circuit is monitored by a comparator circuit so that a deviation in the synchronization can be detected. When the synchronization deviates, by horizonally resetting the counter, the clock synchronization can be established. By effecting the three steps noted above, the synchronous signal generation for the digital MUSE signal can be properly achieved. Also, by combining an arrangement noted above with a conventional synchronous signal for an analog MUSE signal, a synchronous signal generator for both a digital MUSE signal and an analog MUSE signal can be provided.
摘要翻译：同步信号发生器，用于MUSE系统中的MUSE信号，该系统是高分辨率电视系统。包括相位比较器和压控振荡器以及计数器的PLL电路用于产生与外部时钟同步的系统时钟。通过帧同步检测电路从输入的数字MUSE信号帧检测的帧同步信号通过窗口电路复位计数器。在窗口电路的设定范围的精度下建立帧同步。此外，在这种情况下，如果同步在时钟上基于时钟偏移，则由比较器电路监视来自相位误差计算电路的采样相位误差，从而可以检测到同步偏差。当同步偏离时，通过水平重置计数器，可以建立时钟同步。通过进行上述三个步骤，可以适当地实现数字MUSE信号的同步信号产生。此外，通过将上述装置与用于模拟MUSE信号的常规同步信号组合，可以提供用于数字MUSE信号和模拟MUSE信号的同步信号发生器。

70. 发明授权

US4969142A Reproduction of optically recorded signal 失效
标题翻译：复制光记录信号
公开(公告)号：US4969142A
公开(公告)日：1990-11-06
申请号：US352651
申请日：1989-05-12
申请人： Michiyoshi Nagashima , Yoshinari Takemura , Kazuaki Obara
发明人： Michiyoshi Nagashima , Yoshinari Takemura , Kazuaki Obara
IPC分类号： G11B7/00 , G11B7/005 , G11B7/12 , G11B7/135
CPC分类号： G11B7/005 , G11B7/12 , G11B7/135
摘要： In reproduction of signal recorded on an optical disk by irradiation of laser light beam thereon, interference between reflected diffracted light of +1th order or -1th order and reflected diffracted light of 0th order is coersively induced, and by detecting the interference light, a high frequency signal can be reproduced.
摘要翻译：在通过在其上照射激光而在光盘上记录的信号的再现中，共同感应到+ 1次或-1次的反射衍射光与0阶的反射衍射光之间的干涉，并且通过检测干涉光，高可以再现频率信号。

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