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    Optical information storage medium reproduction apparatus and control method of the same
    22.
    发明授权
    Optical information storage medium reproduction apparatus and control method of the same 有权
    光信息存储介质再现装置及其控制方法

    公开(公告)号：US08422345B2

    公开(公告)日：2013-04-16

    申请号：US12814168

    申请日：2010-06-11

    申请人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    发明人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/08511 ,  G11B7/12 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/24 ,  G11B7/24038 ,  G11B19/125 ,  G11B19/128 ,  G11B2007/0013

    摘要： In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires. With the arrangement, it is possible to prevent that the information recording layer closest to the reproduction-laser-incident surface is irradiated wrongly with reproduction laser having high reproduction laser power, thereby making it possible to obtain successful reproduction quality. That is, it is possible to realize the optical information storage medium reproduction apparatus (10) that can set optimum reproduction laser power and perform stable super resolution reproduction.

    摘要翻译： 在用于再现包括多个信息记录层的光信息存储介质的光学信息存储介质再现设备（10）中，每个信息记录层包括长度短于光学系统分辨率极限的记录标记，用于读取信息记录层的再现激光功率 最靠近光学信息存储介质的再现激光入射表面被设置为低于用于读取距再生激光入射面最远的信息记录层的再生激光功率，但不低于满足 光信息存储介质再生装置（10）要求的再现信号特性。 通过这种布置，可以防止最接近再现激光入射表面的信息记录层与具有高再现激光功率的再现激光器错误地照射，从而可以获得成功的再现质量。 也就是说，可以实现能够设置最佳再现激光功率并且执行稳定的超分辨率再现的光学信息存储介质再现装置（10）。

    Optical information recording medium and optical information processing apparatus
    23.
    发明授权
    Optical information recording medium and optical information processing apparatus 有权
    光信息记录媒体和光信息处理装置

    公开(公告)号：US08189444B2

    公开(公告)日：2012-05-29

    申请号：US12451006

    申请日：2008-05-30

    申请人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    发明人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    IPC分类号： G11B7/00

    CPC分类号： G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

    摘要： This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.Information is recorded as marks and spaces coded by RLL(1, 7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 μm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

    摘要翻译： 通过使用高度通用的信号解码方法，当通过包括不超过分辨率极限的标记长度的随机图案记录信息时，本发明允许可获得更好的bER值的超分辨率再现。 信息被记录为通过RLL（1,7）调制编码的标记和空间，其中每个标记和间隔具有多个长度中的一个，并且形成的标记和间隔的2T标记和2T间隔短于0.12μm 。 信息记录层（20）包括从再现光入射的一侧依次设置的再现膜（21）和反射膜（22），该再生膜由（i）氧化锌（ ii）钛酸锶，（iii）氧化钛，（iv）氧化铈，或（v）包含（i）至（iv）中的至少一种的材料，并且该反射膜由钽或钛制成。

    Optical information recording medium and optical information processing apparatus
    24.
    发明申请
    Optical information recording medium and optical information processing apparatus 有权
    光信息记录媒体和光信息处理装置

    公开(公告)号：US20100254246A1

    公开(公告)日：2010-10-07

    申请号：US12801489

    申请日：2010-06-11

    申请人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    发明人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

    IPC分类号： G11B7/00

    CPC分类号： G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

    摘要： This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 μm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

    摘要翻译： 通过使用高度通用的信号解码方法，当通过包括不超过分辨率极限的标记长度的随机图案记录信息时，本发明允许可获得更好的bER值的超分辨率再现。 信息被记录为通过RLL（1,7）调制编码的标记和空格，其中每个标记和间隔具有多个长度中的一个，并且形成的标记和间隔的2T标记和2T间隔短于0.12μm 。 信息记录层（20）包括从再现光入射的一侧依次设置的再现膜（21）和反射膜（22），该再生膜由（i）氧化锌（ ii）钛酸锶，（iii）氧化钛，（iv）氧化铈，或（v）包含（i）至（iv）中的至少一种的材料，并且该反射膜由钽或钛制成。

    Super-resolution optical recording medium on which information is recorded using train of prepits, optical recording medium reproduction device, and control method
    26.
    发明申请
    Super-resolution optical recording medium on which information is recorded using train of prepits, optical recording medium reproduction device, and control method 有权
    超分辨率光记录介质，其上使用预制凹坑序列记录信息，光记录介质再现装置和控制方法

    公开(公告)号：US20120236703A1

    公开(公告)日：2012-09-20

    申请号：US13425060

    申请日：2012-03-20

    申请人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

    发明人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

    IPC分类号： G11B7/24

    CPC分类号： G11B7/007 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/24 ,  G11B7/24091

    摘要： A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.

    摘要翻译： 超分辨率光记录介质包括：记录有介质识别信息的介质信息区域; 记录内容信息的内容区域; 以及设置在所述介质信息区域和所述内容区域之间的空白区域，并且其中设置有至少两个轨道，以便连接所述介质信息区域中的一列预凹坑和所述内容区域中的一列预凹坑。 没有信息记录在空白区域。 因此，提供了一种超分辨率光学记录介质，其中记录有介质识别信息的区域和其上记录内容信息的区域在磁道间距上不同，并且当再现从该区域移位时几乎不发生再现错误 将介质识别信息记录在其上记录有内容信息的区域。

    Magnetic recording apparatus and magnetic recording evaluating apparatus
    27.
    发明申请
    Magnetic recording apparatus and magnetic recording evaluating apparatus 有权
    磁记录装置和磁记录评估装置

    公开(公告)号：US20100328800A1

    公开(公告)日：2010-12-30

    申请号：US12802622

    申请日：2010-06-10

    申请人： Toshihiko Sakai ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Yoshiteru Murakami

    发明人： Toshihiko Sakai ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Yoshiteru Murakami

    IPC分类号： G11B27/36

    CPC分类号： G11B5/012 ,  B82Y10/00 ,  G11B5/746 ,  G11B19/048 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/10388 ,  G11B20/10398 ,  G11B20/1217 ,  G11B2005/0013 ,  G11B2005/0024 ,  G11B2020/1281 ,  G11B2020/1298 ,  G11B2220/252

    摘要： A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code. The program code includes a test module, responsive to a test write start signal, for repeating writing and reading test information by the magnetic writing and reading elements and calculating a quality index value representing quality of writing of the reproduced test information with the setting information changed, and a write module for selecting setting information with which the quality index value satisfies a predetermined condition, and writing the selected information in the memory.

    摘要翻译： 磁记录装置包括：磁记录介质，具有记录表面，多个彼此磁隔离的磁记录单元布置在该记录表面上; 磁性写入元件根据设定信息将信息记录到磁记录单元; 磁读取元件再现记录在磁记录单元中的信息; 存储用于写入的设置信息的存储器; 以及用于执行程序代码的处理器。 程序代码包括测试模块，响应于测试写入开始信号，用于通过磁性写入和读取元件重复写入和读取测试信息，并且计算表示改变的设置信息的再现的测试信息的写入质量的质量指标值 以及写入模块，用于选择质量指标值满足预定条件的设置信息，并将所选择的信息写入存储器。

    Optical information recording medium reproducing apparatus, method for reproducing optical information recording medium, program for reproducing optical information recording medium, and computer readable recording medium
    28.
    发明授权
    Optical information recording medium reproducing apparatus, method for reproducing optical information recording medium, program for reproducing optical information recording medium, and computer readable recording medium 失效
    光信息记录介质再现装置，光信息记录介质的再现方法，再现光信息记录介质的程序和计算机可读记录介质

    公开(公告)号：US08514674B2

    公开(公告)日：2013-08-20

    申请号：US12588181

    申请日：2009-10-07

    申请人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Hideharu Tajima ,  Jun Akiyama

    发明人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Hideharu Tajima ,  Jun Akiyama

    IPC分类号： G11B11/00 ,  G11B7/00

    CPC分类号： G11B7/1263 ,  G11B7/005

    摘要： An optical information recording medium reproducing apparatus 1 includes: a signal detecting/extracting section 15 extracting, from reproduction signal data, extracted reproduction signal data corresponding to a predetermined data pattern; a calculating circuit 10 calculating, from the extracted reproduction signal data, a reproducing power control value for controlling laser light reproducing power; and a reproducing power control section 16 controlling the reproducing power based on the reproducing power control value. The predetermined data pattern is obtained from a space which is sandwiched between marks of λ/2NA or longer and is shorter than λ/4NA and/or a mark which is sandwiched between spaces of λ/2NA or longer and is shorter than λ/4NA. Therefore, even when environmental temperature changes in reproduction, the optical information recording medium reproducing apparatus capable of reproducing a super resolution medium including marks each shorter than λ/4NA optimally controls laser light reproducing power and prevents degradation of reproduction signal quality.

    摘要翻译： 光信息记录介质再现装置1包括：信号检测/提取部分15，从再现信号数据提取对应于预定数据图形的提取的再现信号数据; 计算电路10根据所提取的再现信号数据计算用于控制激光再现功率的再现功率控制值; 以及再现功率控制部分16，其基于再现功率控制值来控制再现功率。 预定数据图案是从λ/ 2NA或更长的标记之间并且短于λ/ 4NA的空间和/或夹在λ/ 2NA或更长且短于λ/ 4NA的空间之间的标记获得的 。 因此，即使再生环境温度变化，能够再现包含比λ/ 4NA短的标记的超分辨率介质的光信息记录介质再现装置也能够最佳地控制激光再现功率，防止再现信号质量的劣化。

    Super-resolution optical recording medium on which information is recorded using train of prepits, optical recording medium reproduction device, and control method
    30.
    发明授权
    Super-resolution optical recording medium on which information is recorded using train of prepits, optical recording medium reproduction device, and control method 有权
    超分辨率光记录介质，其上使用预制凹坑序列记录信息，光记录介质再现装置和控制方法

    公开(公告)号：US08379505B2

    公开(公告)日：2013-02-19

    申请号：US13425060

    申请日：2012-03-20

    申请人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

    发明人： Toshihiko Sakai ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Nobuyuki Takamori

    IPC分类号： G11B7/24

    CPC分类号： G11B7/007 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/24 ,  G11B7/24091

    摘要： A super-resolution optical recording medium includes: a medium information region on which medium identification information is recorded; a content region on which content information is recorded; and a blank region provided between the medium information region and the content region and in which at least two tracks are provided so as to connect a train of prepits in the medium information region and a train of prepits in the content region. No information is recorded on the blank region. Thus, a super-resolution optical recording medium is provided in which a region on which medium identification information is recorded and a region on which content information is recorded are different in track pitch and in which a reproduction error hardly occurs when reproduction shifts from the region on which the medium identification information is recorded to the region on which the content information is recorded.

    摘要翻译： 超分辨率光记录介质包括：记录有介质识别信息的介质信息区域; 记录内容信息的内容区域; 以及设置在所述介质信息区域和所述内容区域之间的空白区域，并且其中设置有至少两个轨道，以便连接所述介质信息区域中的一列预凹坑和所述内容区域中的一列预凹坑。 没有信息记录在空白区域。 因此，提供了一种超分辨率光学记录介质，其中记录有介质识别信息的区域和记录有内容信息的区域在磁道间距上不同，并且当再现从该区域移位时几乎不发生再现错误 将介质识别信息记录在其上记录有内容信息的区域。