公开(公告)号：US06975564B2

公开(公告)日：2005-12-13

申请号：US10699937

申请日：2003-11-03

申请人： Kiyoshi Uchida ,  Yasumori Hino ,  Motoyoshi Murakami ,  Norio Miyatake

发明人： Kiyoshi Uchida ,  Yasumori Hino ,  Motoyoshi Murakami ,  Norio Miyatake

IPC分类号： B32B3/02 ,  G11B11/105 ,  G11B11/00

CPC分类号： G11B11/10582 ,  B32B3/02 ,  G11B11/10578 ,  G11B11/10584 ,  G11B11/10586 ,  Y10T428/31

摘要： An optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first dielectric layer disposed between the substrate and the recording layer and a second dielectric layer disposed on the recording layer opposite to the substrate, wherein the recording layer is initialized with light having a wavelength λ incident from the second dielectric layer side, and the thickness of the second dielectric layer is in a range of λ/(12×n) to λ/(2×n) (where n is a refractive index of the second dielectric layer).

摘要翻译： 本发明的光盘包括基板和设置在基板上方的记录层，并且使用从基板侧入射的光由DWDD系统再现信息信号。 光盘还包括设置在基板和记录层之间的第一介质层和设置在与基板相对的记录层上的第二介电层，其中记录层由具有从第二介电层入射的波长λ的光初始化 并且第二电介质层的厚度在λ/（12xn）至λ/（2xn）（其中n是第二介电层的折射率）的范围内。

公开(公告)号：US06767697B2

公开(公告)日：2004-07-27

申请号：US10038189

申请日：2001-10-24

申请人： Kiyoshi Uchida ,  Yasumori Hino ,  Motoyoshi Murakami ,  Norio Miyatake

发明人： Kiyoshi Uchida ,  Yasumori Hino ,  Motoyoshi Murakami ,  Norio Miyatake

IPC分类号： G11B11105

CPC分类号： G11B11/10582 ,  B32B3/02 ,  G11B11/10578 ,  G11B11/10584 ,  G11B11/10586 ,  Y10T428/31

摘要： A magneto-optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident from the substrate side. The optical disk further includes a first dielectric layer disposed between the substrate and the recording layer and a second dielectric layer disposed on the recording layer opposite to the substrate, wherein the recording layer is initialized with light having a wavelength &lgr; incident from the second dielectric layer side, and the thickness of the second dielectric layer is in a range of &lgr;/(12×n) to &lgr;/(2×n) (where n is a refractive index of the second dielectric layer).

摘要翻译： 本发明的磁光盘包括衬底和设置在衬底上方的记录层，并且使用从衬底侧入射的光由DWDD系统再现信息信号。 光盘还包括设置在基板和记录层之间的第一介质层和设置在与基板相对的记录层上的第二介电层，其中记录层由具有从第二介电层入射的波长λ的光初始化 并且第二电介质层的厚度在λ/（12xn）至λ/（2xn）（其中n是第二介电层的折射率）的范围内。

公开(公告)号：US5517472A

公开(公告)日：1996-05-14

申请号：US222363

申请日：1994-04-04

申请人： Norio Miyatake ,  Hidetsugu Kawabata ,  Kiyoshi Uchida ,  Yasumori Hino ,  Teruyuki Takizawa ,  Tohru Nakamura

发明人： Norio Miyatake ,  Hidetsugu Kawabata ,  Kiyoshi Uchida ,  Yasumori Hino ,  Teruyuki Takizawa ,  Tohru Nakamura

IPC分类号： G11B11/105 ,  G11B19/02 ,  G11B19/12 ,  G11B7/08 ,  G11B5/187 ,  G11B11/10

CPC分类号： G11B19/12 ,  G11B11/10534 ,  G11B11/10552 ,  G11B11/1058 ,  G11B11/10597 ,  G11B19/02

摘要： A sliding part of a magnetic-field generator is configured to slide above and spaced from a surface of a loaded magneto-optical disk in a floating manner. A magnetic-field generating part, which provides a magnetic field to the magneto-optical disk, includes a magnetic pole disposed on a side of the sliding part such that the magnetic pole and the sliding part are positioned adjacent to each other in a radial direction of the surface of the loaded magneto-optical disk and such that the magnetic pole is located closer to a periphery of the magneto-optical disk than the sliding part. An entire flat end surface of the magnetic pole confronting the surface of the magneto-optical disk is generally parallel to and recedes from a slide surface of the sliding part such that the entire flat end surface is spaced further from the surface of the magneto-optical disk than the slide surface of the sliding part.

摘要翻译： 磁场发生器的滑动部分构造成以浮动的方式在加载的磁光盘的表面上方并与之隔开。 向磁光盘提供磁场的磁场产生部包括设置在滑动部的一侧的磁极，使得磁极和滑动部在径向方向上彼此相邻地定位 并且使得磁极位于比滑动部更靠近磁光盘的周边的位置。 面对磁光盘表面的磁极的整个平坦端面通常平行于滑动部分的滑动表面并从后退，使得整个平坦端面与磁光表面相距较远 盘比滑动部分的滑动面。

公开(公告)号：US5202863A

公开(公告)日：1993-04-13

申请号：US757461

申请日：1991-09-10

申请人： Norio Miyatake ,  Hidetsugu Kawabata ,  Kiyoshi Uchida ,  Yasumori Hino ,  Teruyuki Takizawa ,  Tohru Nakamura

发明人： Norio Miyatake ,  Hidetsugu Kawabata ,  Kiyoshi Uchida ,  Yasumori Hino ,  Teruyuki Takizawa ,  Tohru Nakamura

IPC分类号： G11B11/105 ,  G11B19/02 ,  G11B19/12

CPC分类号： G11B19/12 ,  G11B11/10534 ,  G11B11/10552 ,  G11B11/1058 ,  G11B11/10597 ,  G11B19/02

摘要： A magneto-optical disk unit has a first magnetic-field generator for generating a magnetic field corresponding to a frequency in a recording signal frequency band and a second magnetic-field generator for generating DC magnetic fields of both north-seeking and south-seeking poles in a non-contact manner with a loaded magneto-optical disk. The first magnetic-field generator has a slider part for sliding over a loaded magneto-optical disk in a floating manner using an aerodynamic effect. The unit further has a transfer driver for moving the first and second magnetic-field generators in a direction parallel to the loaded magneto-optical disk and a rotary plate for vertically moving the first magnetic-field generator. The unit also has a disk judging circuit for judging whether the loaded magneto-optical disk is of a magnetic-field-modulation overwritable type (first type) or an erase-operation-required type (second type), and a controller for controlling the rotary plate to bring the first magnetic-field generator into contact with the loaded disk when this disk is of the first type and to keep it raised from the disk when this disk is of the second type. The second magnetic-field generator is used when the disk is judged to be of the second type.

摘要翻译： 磁光盘单元具有用于产生对应于记录信号频带中的频率的磁场的第一磁场发生器和用于产生北向和北极两极的直流磁场的第二磁场发生器 以与负载的磁光盘非接触的方式。 第一磁场发生器具有用于使用空气动力学效应以浮动方式在加载的磁光盘上滑动的滑块部分。 该单元还具有用于使第一和第二磁场发生器沿平行于装载的磁光盘的方向移动的转移驱动器和用于垂直移动第一磁场发生器的旋转板。 该单元还具有用于判断装载的磁光盘是磁场调制可重写类型（第一类型）还是擦除操作需要类型（第二类型）的盘判断电路，以及控制器 旋转板，当该磁盘是第一类型时，使第一磁场发生器与装载的磁盘接触，并且当该磁盘是第二类型时将其保持从磁盘升起。 当盘被判断为第二种类型时，使用第二磁场发生器。

公开(公告)号：US07002883B2

公开(公告)日：2006-02-21

申请号：US10639191

申请日：2003-08-11

申请人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

发明人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B5/09 ,  G11B7/24

CPC分类号： G11B27/24 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/19 ,  G11B27/3027 ,  G11B2020/1238 ,  G11B2020/1267 ,  G11B2020/1287 ,  G11B2020/1292 ,  G11B2220/216 ,  G11B2220/2525 ,  G11B2220/2529 ,  G11B2220/2575

摘要： A disk-shaped storage medium allowing the redundancy of an address part to be reduced and data to be recorded with a higher density, and a tracking method using the same are provided. In a disk-shaped storage medium in which a track is divided into a plurality of areas and address data are positioned in the plurality of areas, error detection codes are added to data common to adjacent tracks of the address data for identifying the data common to adjacent tracks. This enables the synchronous process to data in reproducing the address data to be carried out without using a unique synchronization pattern.

摘要翻译： 提供允许减少地址部分的冗余并且以更高密度记录的数据的盘形存储介质以及使用其的跟踪方法。 在其中轨道被划分为多个区域并且地址数据位于多个区域中的盘形存储介质中，错误检测码被添加到用于识别共同的数据的数据的相邻轨道的公共数据 相邻轨道。 这使得能够在不使用唯一同步模式的情况下执行再现地址数据中的数据的同步处理。

公开(公告)号：US5986977A

公开(公告)日：1999-11-16

申请号：US883549

申请日：1997-06-26

申请人： Masahiro Birukawa ,  Yasumori Hino ,  Norio Miyatake

发明人： Masahiro Birukawa ,  Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B11/10 ,  G11B5/596 ,  G11B11/105 ,  G11B11/00

CPC分类号： G11B11/10515 ,  G11B11/10508 ,  G11B11/10513 ,  G11B11/10523 ,  G11B11/10573 ,  G11B11/10595 ,  G11B5/59677

摘要： A reading method for a magneto-optical recording medium is provided, irradiating laser light as a reading beam and using a magnetic head. High density and high transmission rate are possible and a correct reading can be performed according to the length of recording marks by reading the magneto-optical recording medium while impressing a magnetic field with an orientation promoting the translation of magnetic domain walls. In the magnetic super resolution type magneto-optical recording medium, which attains a signal only from one portion of the irradiation domain of the reading beam and has at least a recording layer and a reading layer on a substrate, the focused laser light is irradiated as a reading beam and the magnetic field is modulated, using the magnetic head, which is equipped with a slider and glides or floats on the recording medium. The magneto-optical recording medium is read, while impressing a magnetic field 161 that accelerates at least the transcription of the magnetization of the recording layer into the reading layer.

摘要翻译： 提供了一种用于磁光记录介质的读取方法，照射激光作为读取光束并使用磁头。 高密度和高透射率是可能的，并且可以通过读取磁光记录介质，同时以促进磁畴壁的平移的取向施加磁场来根据记录标记的长度来执行正确的读取。 在仅从读取光束的照射域的一部分获得信号并且在基板上至少具有记录层和读取层的磁性超分辨率型磁光记录介质中，聚焦的激光以 使用配备有滑块并在记录介质上滑动或浮动的磁头来调制读取光束和磁场。 读取磁光记录介质，同时施加加速至少将记录层的磁化转录到读取层中的磁场161。

公开(公告)号：US07151716B2

公开(公告)日：2006-12-19

申请号：US10902328

申请日：2004-07-29

申请人： Motoyoshi Murakami ,  Takeshi Sakaguchi ,  Yasumori Hino

发明人： Motoyoshi Murakami ,  Takeshi Sakaguchi ,  Yasumori Hino

IPC分类号： G11B11/00

CPC分类号： G11B11/10578 ,  G11B11/10515 ,  G11B11/10582 ,  G11B11/10584 ,  G11B11/10586

摘要： A magneto-optical recording medium, including a recording layer, a transfer control layer magnetically coupled to the recording layer, and a reproduction layer. The recording layer includes a recording magnetic domain in which information is recorded by a magnetization direction vertical to the surface of the film. The reproduction layer includes a reproduction magnetic domain in which information in the recording layer is transferred and formed as a magnetization direction by magnetic coupling. The direction of magnetization of the recording magnetic domain of the recording layer and the direction of magnetization of the transfer control layer corresponding to the recording magnetic domain are in opposite directions in at least part of the range of temperatures less than a transfer temperature where the reproduction magnetic domain is transferred to the reproduction layer. The Curie point temperature of the transfer control layer is higher than this transfer temperature.

摘要翻译： 包括记录层，磁耦合到记录层的转移控制层和再现层的磁光记录介质。 记录层包括通过垂直于胶片表面的磁化方向记录信息的记录磁畴。 再现层包括其中记录层中的信息通过磁耦合传送并形成为磁化方向的再现磁畴。 记录层的记录磁畴的磁化方向和对应于记录磁畴的转印控制层的磁化方向在至少部分温度范围内的方向相反，转印温度小于再现的转印温度 磁畴被传送到再现层。 转移控制层的居里点温度高于此转印温度。

公开(公告)号：US06887652B2

公开(公告)日：2005-05-03

申请号：US09848046

申请日：2001-05-03

申请人： Yasumori Hino ,  Norio Miyatake ,  Tadashi Nakamura

发明人： Yasumori Hino ,  Norio Miyatake ,  Tadashi Nakamura

IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B7/26 ,  G11B27/19 ,  G11B27/30 ,  G11B7/095 ,  G03C5/00

CPC分类号： G11B27/3027 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/261 ,  G11B27/19 ,  Y10S430/146

摘要： An optical disk includes at least one region along a radial direction, and a plurality of tracks provided in the at least one region. The at least one region contains address regions radially positioned on the plurality of tracks. In the address regions, data which is common between two adjacent tracks of the plurality of tracks is recorded at positions aligned along the same radial direction on the two adjacent tracks, and data which is not common between the two adjacent tracks is recorded at positions along different radial directions on the two adjacent tracks.

摘要翻译： 光盘包括沿着径向方向的至少一个区域和设置在该至少一个区域中的多个轨道。 所述至少一个区域包含位于多个轨道上的径向定位的地址区。 在地址区域中，在两个相邻轨道上的相同径向对齐的位置处记录在多个轨道的两个相邻轨道之间共同的数据，并且在两个相邻轨道之间的位置记录不相同的数据 两个相邻轨道上的不同径向方向。

公开(公告)号：US06628578B1

公开(公告)日：2003-09-30

申请号：US09647283

申请日：2000-09-26

申请人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

发明人： Tadashi Nakamura ,  Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B700

CPC分类号： G11B27/24 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0938 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/19 ,  G11B27/3027 ,  G11B2020/1238 ,  G11B2020/1267 ,  G11B2020/1287 ,  G11B2020/1292 ,  G11B2220/216 ,  G11B2220/2525 ,  G11B2220/2529 ,  G11B2220/2575

摘要： A disklike storage medium on which information is recorded at higher density by reducing the redundancy of the address part and a tracking method using the medium are disclosed. The disklike storage medium where a track is divided into areas and address data is recorded in the areas is so adapted that an error detecting code for identifying the data common to adjacent tracks out of the address data is added to the common data. Thus, a data synchronization processing performed when the address data is reproduced is realized without any special synchronization pattern.

摘要翻译： 公开了一种通过减少地址部分的冗余度和使用该介质的跟踪方法以更高密度记录信息的盘状存储介质。 轨道被划分为区域和地址数据的盘状存储介质被记录在这些区域中，适于将用于识别地址数据中相邻轨道共同的数据的错误检测码添加到公共数据中。 因此，在没有任何特殊的同步模式的情况下实现当地址数据被再现时执行的数据同步处理。

公开(公告)号：US06307819B1

公开(公告)日：2001-10-23

申请号：US09420685

申请日：1999-10-19

申请人： Masahiro Birukawa ,  Yasumori Hino ,  Norio Miyatake

发明人： Masahiro Birukawa ,  Yasumori Hino ,  Norio Miyatake

IPC分类号： G11B1100

CPC分类号： G11B11/10515 ,  G11B5/59677 ,  G11B11/10508 ,  G11B11/10513 ,  G11B11/10523 ,  G11B11/10573 ,  G11B11/10595

摘要： A reading method for a magneto-optical recording medium is provided, irradiating laser light as a reading beam and using a magnetic head. High density and high transmission rate are possible and a correct reading can be performed according to the length of recording marks by reading the magneto-optical recording medium while impressing a magnetic field with an orientation promoting the translation of magnetic domain walls. In the magnetic super resolution type magneto-optical recording medium, which attains a signal only from one portion of the irradiation domain of the reading beam and has at least a recording layer and a reading layer on a substrate, the focused laser light is irradiated as a reading beam and the magnetic field is modulated, using the magnetic head, which is equipped with a slider and glides or floats on the recording medium. The magneto-optical recording medium is read, while impressing a magnetic field 161 that accelerates at least the transcription of the magnetization of the recording layer into the reading layer.

摘要翻译： 提供了一种用于磁光记录介质的读取方法，照射激光作为读取光束并使用磁头。 高密度和高透射率是可能的，并且可以通过读取磁光记录介质，同时以促进磁畴壁的平移的取向施加磁场来根据记录标记的长度来执行正确的读取。 在仅从读取光束的照射域的一部分获得信号并且在基板上至少具有记录层和读取层的磁性超分辨率型磁光记录介质中，聚焦的激光以 使用配备有滑块并在记录介质上滑动或浮动的磁头来调制读取光束和磁场。 读取磁光记录介质，同时施加加速至少将记录层的磁化转录到读取层中的磁场161。