公开(公告)号：US20060013111A1

公开(公告)日：2006-01-19

申请号：US10535738

申请日：2003-11-19

申请人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hironori Kakiuchi

发明人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hironori Kakiuchi

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/0013

摘要： A method for recording data in an optical recording medium which can record data in information recording layers other than an information recording layer farthest from a light incidence plane of an optical recording medium including a plurality of information recording layers in a desired manner and reproduce data from information recording layers other than the information recording layer farthest from the light incidence plane in a desired manner. The method for recording data in an optical recording medium according to the present invention is adapted for recording data in the optical recording medium including a substrate, a protective layer and a plurality of information recording layers between the substrate and the protective layer by projecting a laser beam onto the plurality of information recording layers via a light incidence plane constituted by either the substrate or the protective layer, thereby recording data in the plurality of information recording layers and the method for recording data in an optical recording medium comprises the steps of projecting a laser beam whose power is modulated between at least three levels including a level corresponding to a recording power, a level corresponding to an intermediate power lower than the recording power and a level corresponding to a bottom power lower than the intermediate power onto at least one information recording layer other than an information recording layer farthest from the light incidence plane and forming a recording mark in the at least one information recording layer other than the information recording layer farthest from the light incidence plane, thereby recording data therein.

摘要翻译： 一种用于在光学记录介质中记录数据的方法，该光记录介质可以以期望的方式将数据记录在除包含多个信息记录层的光记录介质的光入射面最远的信息记录层之外的信息记录层中，并从 信息记录层以外的信息记录层，以期望的方式离开光入射面最远。 根据本发明的用于在光学记录介质中记录数据的方法适于通过投射激光来在包括基板，保护层和多个信息记录层之间的记录介质中记录数据 通过由基板或保护层构成的光入射面将多个信息记录层射束到多个信息记录层，从而在多个信息记录层中记录数据以及在光记录介质中记录数据的方法包括以下步骤： 其功率在包括对应于记录功率的电平，对应于低于记录功率的中间功率的电平和对应于低于中间功率的底部功率的电平的至少三个电平之间调制的激光束到至少一个信息 除信息记录层f以外的记录层 并且在远离光入射面的信息记录层以外的至少一个信息记录层中形成记录标记，从而在其中记录数据。

公开(公告)号：US07345976B2

公开(公告)日：2008-03-18

申请号：US10535738

申请日：2003-11-19

申请人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hironori Kakiuchi

发明人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hironori Kakiuchi

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/24038 ,  G11B7/243 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/0013

摘要： A method for recording data in an optical recording medium which can record data in information recording layers other than an information recording layer farthest from a light incidence plane of an optical recording medium including a plurality of information recording layers in a desired manner and reproduce data from information recording layers other than the information recording layer farthest from the light incidence plane in a desired manner. The method for recording data in an optical recording medium according to the present invention is adapted for recording data in the optical recording medium including a substrate, a protective layer and a plurality of information recording layers between the substrate and the protective layer by projecting a laser beam onto the plurality of information recording layers via a light incidence plane constituted by either the substrate or the protective layer, thereby recording data in the plurality of information recording layers and the method for recording data in an optical recording medium comprises the steps of projecting a laser beam whose power is modulated between at least three levels including a level corresponding to a recording power, a level corresponding to an intermediate power lower than the recording power and a level corresponding to a bottom power lower than the intermediate power onto at least one information recording layer other than an information recording layer farthest from the light incidence plane and forming a recording mark in the at least one information recording layer other than the information recording layer farthest from the light incidence plane, thereby recording data therein.

摘要翻译： 一种用于在光学记录介质中记录数据的方法，该光记录介质可以以期望的方式将数据记录在除包含多个信息记录层的光记录介质的光入射面最远的信息记录层之外的信息记录层中，并从 信息记录层以外的信息记录层，以期望的方式离开光入射面最远。 根据本发明的用于在光学记录介质中记录数据的方法适于通过投射激光来在包括基板，保护层和多个信息记录层之间的记录介质中记录数据 通过由基板或保护层构成的光入射面将多个信息记录层射束到多个信息记录层，从而在多个信息记录层中记录数据以及在光记录介质中记录数据的方法包括以下步骤： 其功率在包括对应于记录功率的电平，对应于低于记录功率的中间功率的电平和对应于低于中间功率的底部功率的电平的至少三个电平之间调制的激光束到至少一个信息 除信息记录层f以外的记录层 并且在远离光入射面的信息记录层以外的至少一个信息记录层中形成记录标记，从而在其中记录数据。

公开(公告)号：US20070148395A1

公开(公告)日：2007-06-28

申请号：US11638360

申请日：2006-12-14

申请人： Hiroshi Shingai ,  Hideaki Miura ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Hironori Kakiuchi

发明人： Hiroshi Shingai ,  Hideaki Miura ,  Tatsuya Kato ,  Hiroshi Takasaki ,  Hironori Kakiuchi

IPC分类号： B32B3/02

CPC分类号： G11B7/2403 ,  G11B7/24038 ,  G11B7/2433 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25711 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

摘要： A multilayer optical recording medium is provided with a totally reflective first information layer provided on a substrate and a second information layer being a translucent information layer provided via a spacer layer. The second information layer is composed of a TiO2 layer, a first dielectric layer, a reflective film, a second dielectric layer, a recording film, and a third dielectric layer, all of which are laminated together in this order. The first dielectric layer is made of ZrO2, Cr2O3, and Al2O3, and has a refractive index in the range of 1.84 to 2.20. If the recoding film is made of a material containing Sb as a main component, it is possible to strike a balance between high values of both the transmittance and the degree of modulation in recording information by laser light with a wavelength of 405 nm using an optical recording system having an optical system with a numerical aperture NA=0.85.

摘要翻译： 多层光学记录介质设置有设置在基板上的全反射第一信息层，第二信息层是通过间隔层提供的半透明信息层。 第二信息层由TiO 2层，第一电介质层，反射膜，第二电介质层，记录膜和第三电介质层组成，所有这些层叠在一起 这个命令。 第一电介质层由ZrO 2，Cr 2 O 3 O 3和Al 2 O 3 O 3， 3，折射率在1.84〜2.20的范围内。 如果记录膜由含有Sb作为主要成分的材料制成，则可以通过使用光学器件的波长为405nm的激光在记录信息中的透射率和调制度的高值之间取得平衡 具有数值孔径NA = 0.85的光学系统的记录系统。

公开(公告)号：US07471606B2

公开(公告)日：2008-12-30

申请号：US11209826

申请日：2005-08-24

申请人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

发明人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/24038 ,  G11B2007/0013

摘要： An information recording method enables the precise formation of a recording mark on a recording layer having a high light transmittance such as an L1 layer of a double-layered optical recording medium. The information recording method uses the following recording strategy. A laser beam is pulse-modulated so as to create a pulse series including a write pulse of a recording power and a cooling pulse of a base power. Data to be recorded is modulated to have a length of a recording mark along a track of the recording layer. At the same time, the length of the recording mark is made to correspond to an integral multiple nT of T where T is one clock cycle. An nT recording mark corresponding to nT is recorded by using the same number of write pulses and cooling pulses when n is 4 or larger. Moreover, an average width AveTc for a single cooling pulse width Tc is set to satisfy: 1.0

摘要翻译： 信息记录方法能够在具有高透光率的记录层上精确地形成记录标记，例如双层光记录介质的L1层。 信息记录方法使用以下记录策略。 激光束被脉冲调制，以产生包括记录功率的写入脉冲和基本功率的冷却脉冲的脉冲序列。 要记录的数据被调制成具有沿着记录层的轨道的记录标记的长度。 同时，使记录标记的长度对应于T的整数倍nT，其中T是一个时钟周期。 当n为4以上时，通过使用相同数量的写入脉冲和冷却脉冲来记录对应于nT的nT记录标记。 此外，将单个冷却脉冲宽度Tc的平均宽度AveTc设定为满足：1.0

公开(公告)号：US20060067197A1

公开(公告)日：2006-03-30

申请号：US11209826

申请日：2005-08-24

申请人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

发明人： Tetsuro Mizushima ,  Hideaki Miura ,  Tatsuya Kato ,  Hironori Kakiuchi ,  Hiroshi Shingai ,  Jiro Yoshinari

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/24038 ,  G11B2007/0013

摘要： An information recording method enables the precise formation of a recording mark on a recording layer having a high light transmittance such as an L1 layer of a double-layered optical recording medium. The information recording method uses the following recording strategy. A laser beam is pulse-modulated so as to create a pulse series including a write pulse of a recording power and a cooling pulse of a base power. Data to be recorded is modulated to have a length of a recording mark along a track of the recording layer. At the same time, the length of the recording mark is made to correspond to an integral multiple nT of T where T is one clock cycle. An nT recording mark corresponding to nT is recorded by using the same number of write pulses and cooling pulses when n is 4 or larger. Moreover, an average width AveTc for a single cooling pulse width Tc is set to satisfy: 1.0

摘要翻译： 信息记录方法能够在具有高透光率的记录层上精确地形成记录标记，例如双层光记录介质的L1层。 信息记录方法使用以下记录策略。 激光束被脉冲调制，以产生包括记录功率的写入脉冲和基本功率的冷却脉冲的脉冲序列。 要记录的数据被调制成具有沿着记录层的轨道的记录标记的长度。 同时，使记录标记的长度对应于T的整数倍nT，其中T是一个时钟周期。 当n为4以上时，通过使用相同数量的写入脉冲和冷却脉冲来记录对应于nT的nT记录标记。 此外，将单个冷却脉冲宽度Tc的平均宽度AveTc设定为满足：1.0

公开(公告)号：US20050243676A1

公开(公告)日：2005-11-03

申请号：US10516701

申请日：2003-06-02

申请人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

发明人： Tatsuya Kato ,  Hideki Hirata ,  Hiroyasu Inoue

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/24 ,  G11B7/243 ,  G11B3/00

CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B7/2403 ,  G11B7/243 ,  G11B7/258

摘要： It is an object of the present invention to provide a method for determining a pattern for modulating the power of a laser beam which can determine a pattern for modulating the power of a laser beam so that data can be recorded in a write-once type optical recording medium with a laser beam having a low recording power at a high linear recording velocity. The method for determining a pattern for modulating the power of a laser beam according to the present invention includes the steps of determining pulse train patterns by fixing a recording power at a predetermined level and varying the level of a bottom power, modulating the power of the laser beam in accordance with the pulse train patterns to record first test signals in the optical recording medium, reproducing the first test signals, determining the optimum level of the bottom power based on the amplitude of the thus reproduced first test signals, determining pulse train patterns by fixing the bottom power at the optimum level and varying the level of the recording power, modulating the power of the laser beam in accordance with the pulse train patterns to record second test signals in the optical recording medium, reproducing the second test signals and determining the optimum level of the recording power based on at least one of jitter and error rates of the thus reproduced second test signals.

摘要翻译： 本发明的目的是提供一种用于确定用于调制激光束的功率的图案的方法，该方法可以确定用于调制激光束的功率的图案，使得数据可以以一次写入型光学 以高线性记录速度具有低记录功率的激光束的记录介质。 根据本发明的确定用于调制激光束的功率的图案的方法包括以下步骤：通过将记录功率固定在预定水平并改变底部功率的电平来调节脉冲串模式的功率 激光束根据脉冲序列图案在光学记录介质中记录第一测试信号，再现第一测试信号，基于这样再现的第一测试信号的幅度确定底部功率的最佳电平，确定脉冲串模式 通过将底部功率固定在最佳水平并改变记录功率的水平，根据脉冲串模式调制激光束的功率，以将第二测试信号记录在光学记录介质中，再现第二测试信号并确定 基于由此再现的抖动和错误率中的至少一个的记录功率的最佳电平 nd测试信号。

公开(公告)号：US6115351A

公开(公告)日：2000-09-05

申请号：US221125

申请日：1998-12-28

申请人： Hajime Utsunomiya ,  Tatsuya Kato ,  Hiroyasu Inoue

发明人： Hajime Utsunomiya ,  Tatsuya Kato ,  Hiroyasu Inoue

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/24 ,  G11B7/254 ,  G11B7/257 ,  G11B7/26

CPC分类号： G11B7/2578 ,  G11B7/006 ,  G11B7/24 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B2007/25718 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2585 ,  G11B7/2595

摘要： Prevented is the reliability loss in phase change optical recording media during high-temperature storage, and also prevented is the phenomenon of self-erase by which a part of record marks having been formed in the media are erased due to the lateral heat diffusion into the recording layer while recording laser beams are irradiated to the media. The optical recording medium disclosed has a recording layer of a phase change type and is applied to driving units for overwriting it at a linear velocity of V.sub.0. The medium is so designed as to satisfy the requirement of 1

摘要翻译： 防止在高温存储期间相变光学记录介质中的可靠性损失，并且还防止了由于横向热扩散到介质中而在介质中形成的记录标记的一部分被擦除的自擦除现象 记录激光束的记录层被照射到介质上。 所公开的光记录介质具有相变型的记录层，并被施加到用于以V 0的线速度重写的驱动单元。 该介质被设计成满足1

公开(公告)号：US6096400A

公开(公告)日：2000-08-01

申请号：US220344

申请日：1998-12-24

申请人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya

发明人： Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya

IPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/24 ,  B32B3/02

CPC分类号： G11B7/24079 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/00454 ,  Y10T428/21

摘要： In a phase change-type optical recording medium of absorption coefficient control structure used by land/groove recording system, difference in reproduction characteristics between the land and the groove is minimized while ensuring sufficient output of the tracking signal. In the optical recording medium of the present invention, light absorption coefficient at the wavelength of said recording/reproducing beam is such that: Ac/Aa.gtoreq.0.8 when light absorption coefficient in crystalline region is Ac and light absorption coefficient in amorphous region is Aa; relation between groove width W.sub.G and land width W.sub.L is such that: x=2W.sub.G /(W.sub.L +W.sub.G).gtoreq.1.03; and the relation: .lambda.max.sup.i

摘要翻译： 在由槽脊/沟槽记录系统使用的吸收系数控制结构的相变型光学记录介质中，在确保足够的跟踪信号的输出的同时，使焊盘和凹槽之间的再现特性差异最小化。 在本发明的光记录介质中，所述记录/再现光束的波长处的光吸收系数使得当结晶区域的光吸收系数为Ac时的Ac / Aa> / = 0.8，非晶区域的光吸收系数为 阿 槽宽度WG和焊盘宽度WL之间的关系使得：x = 2WG /（WL + WG）> / = 1.03; 当反射光谱中的局部最小值的波长为λ迷你时，满足λmaxi <λu

公开(公告)号：US20060072409A1

公开(公告)日：2006-04-06

申请号：US10519282

申请日：2003-06-27

申请人： Tatsuya Kato ,  Tatsuhiro Kobayashi ,  Hiroyasu Inoue

发明人： Tatsuya Kato ,  Tatsuhiro Kobayashi ,  Hiroyasu Inoue

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/0045

摘要： It is an object of the present invention to provide a method for determining the power of a laser beam which can determine the recording power of the laser beam so that jitter of a reproduced signal obtained by reproducing data recorded in a data rewritable type optical recording medium can be controlled within a tolerance even when cross erasing of data occurs and that the reproduced signal having the highest level can be obtained. The method for determining the power of a laser beam according to the present invention includes the steps of recording a first test signal in a data rewritable type optical recording medium while varying a level of the recording power of the laser beam, measuring, for each of the levels of the recording power of the laser beam, an amplitude A0 of a reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data, an amplitude A1 and jitter J1 of a reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and an amplitude As and jitter Js of a reproduced signal obtained by reproducing the first test signal after an influence of cross erasing of data on the first test signal was saturated, calculating a first parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A0 of the reproduced signal obtained by reproducing the first test signal before the first test signal is influenced by cross erasing of data and the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, calculating a second parameter for each of the levels of the recording power of the laser beam as a function of the difference between the amplitude A1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data and the amplitude As of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated, calculating a third parameter for each of the levels of the recording power of the laser beam as a function of the difference between the jitter Js of the reproduced signal obtained by reproducing the first test signal after the influence of cross erasing of data on the first test signal was saturated and the jitter J1 of the reproduced signal obtained by reproducing the first test signal after the first test signal was once influenced by cross erasing of data, obtaining a value of the first parameter corresponding to a value of the second parameter when the third parameter is equal to a tolerance, thereby determining a critical parameter, recording a second test signal in the data rewritable type optical recording medium while varying a level of the recording power of the laser beam, judging whether or not signal characteristics of a reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy reference conditions, measuring, for each of the levels of the recording power of the laser beam, when the signal characteristics of the reproduced signal obtained by reproducing the second test signal recorded in the data rewritable type optical recording medium satisfy the reference conditions, an amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and an amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, calculating a fourth parameter based on the amplitudes AA0 and AA1 of the reproduced signals obtained by reproducing the second test signals as a function of the difference between the amplitude AA0 of the reproduced signal obtained by reproducing the second test signal before the second test signal is influenced by cross erasing of data and the amplitude AA1 of the reproduced signal obtained by reproducing the second test signal after the first test signal was once influenced by cross erasing of data, comparing the critical parameter and the fourth parameter, and determining the recording power of the laser beam at which the fourth parameter was obtained as an optimum recording power when the fourth parameter is equal to or lower than the critical parameter.

公开(公告)号：US06605328B2

公开(公告)日：2003-08-12

申请号：US09886258

申请日：2001-06-22

申请人： Hiroshi Shingai ,  Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Yoshitomo Tanaka

发明人： Hiroshi Shingai ,  Hiroyasu Inoue ,  Tatsuya Kato ,  Hajime Utsunomiya ,  Yoshitomo Tanaka

IPC分类号： B32B302

CPC分类号： G11B7/2433 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716 ,  Y10T428/21

摘要： In an optical recording medium comprising a phase change recording layer (4) containing Sb and optionally, Te and/or In as a main component, the recording layer is able to be crystallized to provide a crystallized region which contains rhombohedral crystals consisting essentially of Sb and is substantially free of a crystal phase other than the rhombohedral crystals. When the recording layer contains a rare earth element, Zr, Hf, Ti or Sn as an auxiliary component, the medium has a dielectric layer (31) composed of silicon oxide, silicon nitride, aluminum oxide, or a mixture of zinc sulfide and at least 30 mol % of silicon oxide, disposed contiguous to and in front of the recording layer (4) as viewed from the recording/reading beam incident side. The medium has a high transfer rate and improved thermal stability.