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。

公开(公告)号：US08467140B2

公开(公告)日：2013-06-18

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 ,  G11B5/09

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。

公开(公告)号：US20100254244A1

公开(公告)日：2010-10-07

申请号：US12801487

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.

公开(公告)号：US20100254234A1

公开(公告)日：2010-10-07

申请号：US12801486

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： G11B20/10

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 2 T marks and 2 T 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2个T标记和2个T间距短于 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。

公开(公告)号：US20100246346A1

公开(公告)日：2010-09-30

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： G11B20/10

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.

公开(公告)号：US20100254243A1

公开(公告)日：2010-10-07

申请号：US12801485

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.

公开(公告)号：US20100232269A1

公开(公告)日：2010-09-16

申请号：US12734169

申请日：2008-09-25

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： G11B20/10

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.

公开(公告)号：US20120207009A1

公开(公告)日：2012-08-16

申请号：US13456089

申请日：2012-04-25

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： G11B7/135

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。

公开(公告)号：US20110058460A1

公开(公告)日：2011-03-10

申请号：US12814091

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

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）。

公开(公告)号：US08582412B2

公开(公告)日：2013-11-12

申请号：US13456089

申请日：2012-04-25

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.