公开(公告)号：US20090075013A1

公开(公告)日：2009-03-19

申请号：US12182460

申请日：2008-07-30

申请人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

发明人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

IPC分类号： B32B3/02

CPC分类号： G11B7/004 ,  G11B7/1372 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24038

摘要： A recording medium including a plurality of recording layers, including: an optional first recording layer on which a light spot at a diffraction limit is formed; and a second recording layer on which a mark string pattern is formed, said second recording layer being different from said first recording layer, wherein when said mark string pattern is formed on a light receiving plane, while information of said first recording layer is reproduced, assuming that an optical distance between said first and second recording layers is dm, an optical distance d between optional two recording layers among a plurality of said recording layers is different from said dm.

摘要翻译： 一种包括多个记录层的记录介质，包括：可选的第一记录层，其上形成有衍射极限的光斑; 以及其上形成有标记串图案的第二记录层，所述第二记录层与所述第一记录层不同，其中当所述标记串图案形成在光接收平面上时，当再现所述第一记录层的信息时， 假设所述第一和第二记录层之间的光学距离为dm，则多个所述记录层中任选的两个记录层之间的光学距离d与所述dm不同。

公开(公告)号：US5737301A

公开(公告)日：1998-04-07

申请号：US657771

申请日：1996-05-31

申请人： Harukazu Miyamoto ,  Kiyoshi Matsumoto ,  Hisataka Sugiyama

发明人： Harukazu Miyamoto ,  Kiyoshi Matsumoto ,  Hisataka Sugiyama

IPC分类号： G11B7/0045 ,  G11B7/006 ,  G11B7/125 ,  G11B11/105

CPC分类号： G11B7/126 ,  G11B11/10595 ,  G11B7/006 ,  G11B7/0045

摘要： An optical recording apparatus includes an optical system to focus a beam of light onto an optical recording medium; a laser source to generate the beam; a laser driver that modulates the output of the beam according to digital information to be recorded; and a controller that performs control in such a way that the average power per unit recording time of the beams used to record digital information "1" (or "0") and digital information "0" (or "1") onto the recording medium are virtually equal, and so that the peak power of the beams used to record the digital information "1" (or "0") and the digital information "0" (or "1") differ from each other.

摘要翻译： 光记录装置包括：将光束聚焦到光记录介质上的光学系统; 用于产生光束的激光源; 激光驱动器，根据要记录的数字信息调制光束的输出; 以及控制器，其以这样的方式执行控制，使得用于将数字信息“1”（或“0”）和数字信息“0”（或“1”）记录到记录上的光束的每单位记录时间的平均功率 介质几乎相等，因此用于记录数字信息“1”（或“0”）和数字信息“0”（或“1”）的波束的峰值功率彼此不同。

公开(公告)号：US5648949A

公开(公告)日：1997-07-15

申请号：US597408

申请日：1996-02-08

申请人： Harukazu Miyamoto ,  Hisataka Sugiyama ,  Kiyoshi Matsumoto

发明人： Harukazu Miyamoto ,  Hisataka Sugiyama ,  Kiyoshi Matsumoto

IPC分类号： G11B5/09 ,  G11B7/005 ,  G11B11/105 ,  G11B20/10 ,  G11B20/14 ,  G11B27/36

CPC分类号： G11B20/1496 ,  G11B27/36 ,  G11B5/09 ,  G11B11/10515 ,  G11B20/10009 ,  G11B7/005

摘要： A variable readout signal with at least one reference level to obtain digital data having two or more values. Based upon demodulated digital data, a standard level having two or more values is caused to change following the level of a readout signal having two or more values, and the reference level is changed based upon the change of the standard level.

摘要翻译： 具有至少一个参考电平的可变读出信号以获得具有两个或多个值的数字数据。 基于解调的数字数据，使得具有两个或更多个值的标准电平随着具有两个或更多个值的读出信号的电平而改变，并且基准电平根据标准电平的改变而改变。

公开(公告)号：US07995082B2

公开(公告)日：2011-08-09

申请号：US11781491

申请日：2007-07-23

申请人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

发明人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

IPC分类号： B41J2/435

CPC分类号： G11B7/004 ,  G11B7/125 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/251 ,  G11B2007/0013 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25716

摘要： A recording medium including a plurality of recording layers, including: an optional first recording layer on which a light spot at a diffraction limit is formed; and a second recording layer on which a mark string pattern is formed, said second recording layer being different from said first recording layer, wherein when said mark string pattern is formed on a light receiving plane, while information of said first recording layer is reproduced, assuming that an optical distance between said first and second recording layers is dm, an optical distance d between optional two recording layers among a plurality of said recording layers is different from said dm.

摘要翻译： 一种包括多个记录层的记录介质，包括：可选的第一记录层，其上形成有衍射极限的光斑; 以及其上形成有标记串图案的第二记录层，所述第二记录层与所述第一记录层不同，其中当所述标记串图案形成在光接收平面上时，当再现所述第一记录层的信息时， 假设所述第一和第二记录层之间的光学距离为dm，则多个所述记录层中任选的两个记录层之间的光学距离d与所述dm不同。

公开(公告)号：US20080012934A1

公开(公告)日：2008-01-17

申请号：US11781491

申请日：2007-07-23

申请人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

发明人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

IPC分类号： B41J2/435

CPC分类号： G11B7/004 ,  G11B7/125 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/251 ,  G11B2007/0013 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25716

摘要： A recording medium including a plurality of recording layers, including: an optional first recording layer on which a light spot at a diffraction limit is formed; and a second recording layer on which a mark string pattern is formed, said second recording layer being different from said first recording layer, wherein when said mark string pattern is formed on a light receiving plane, while information of said first recording layer is reproduced, assuming that an optical distance between said first and second recording layers is dm, an optical distance d between optional two recording layers among a plurality of said recording layers is different from said dm.

摘要翻译： 一种包括多个记录层的记录介质，包括：可选的第一记录层，其上形成有衍射极限的光斑; 以及其上形成有标记串图案的第二记录层，所述第二记录层与所述第一记录层不同，其中当所述标记串图案形成在光接收平面上时，当再现所述第一记录层的信息时， 假设所述第一和第二记录层之间的光学距离为dm，则多个所述记录层中任选的两个记录层之间的光学距离d与所述dm不同。

公开(公告)号：US07286153B1

公开(公告)日：2007-10-23

申请号：US08427866

申请日：1995-04-26

申请人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

发明人： Hisataka Sugiyama ,  Takeshi Maeda ,  Kiyoshi Matsumoto ,  Motoyasu Terao ,  Shigenori Okamine ,  Tetsuya Nishida ,  Harukazu Miyamoto

IPC分类号： B41J2/435

CPC分类号： G11B7/004 ,  G11B7/125 ,  G11B7/14 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/251 ,  G11B2007/0013 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25716

摘要： In a three-dimensional recording and reproducing apparatus having a recording medium including a plurality of recording layers stacked on a substrate and an optical system for converging a light irradiated from the substrate side on each of the plurality of recording layers to three-dimensionally record and reproduce information, the following equation is satisfied: λ/4≦(1/8NB)(1/NB2−1)NAF4Δd where λ: Wavelength of the light; NB: Refractivity of the substrate 3; NAF: Numerical aperture of a focus lens 8 for converging a light; Δd: Positional range in the optical axis direction in which exists a recording layer on which the light is to be converged. A light spot is focused on each layer of the multi-layer structured disc to record and reproduce highly reliable data in a high density.

摘要翻译： 在具有堆叠在基板上的多个记录层的记录介质的三维记录和再现装置和用于会聚从多个记录层中的每个记录层上的基板侧照射的光的光学系统进行三维记录和 λ/ 4 <=（1 / 8NB）（1 / NB <2> / SUP> -1）NAF 4 Deltad <？in-line-formula description =“In-line Formulas”end =“tail”？>其中lambda：光的波长; 注意：基材3的折射率; NAF：用于会聚光的聚焦透镜8的数值孔径; Deltad：存在要聚光的记录层的光轴方向上的位置范围。 光斑聚焦在多层结构光盘的每层上，以高密度记录和再现高可靠性的数据。