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1. 发明授权

US07142491B2 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US07142491B2
公开(公告)日：2006-11-28
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： A method for determining the recording power of a laser beam so that jitter from 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, the reproduced signal having the highest obtainable level. The power of a laser beam is measured for each level of the recording power of the laser beam. Critical parameters are also calculated for each level of the recording power of the laser beam. The critical parameters are projected onto a data rewritable type optical recording medium for recording data therein. A data recording apparatus storing a critical parameter used for determining the power of a laser beam is associated with ID data for identifying the kind of optical recording medium. A data recording apparatus storing an optimum recording power used for determining the power of a laser beam is also associated with ID data for identifying the kind of optical recording medium.
摘要翻译：一种用于确定激光束的记录功率的方法，使得即使当数据的交叉擦除发生时，也可以将通过再现记录在数据可重写型光学记录介质中的数据而获得的再现信号的抖动控制在容限内，最高可获得水平。针对激光束的记录功率的每个级别测量激光束的功率。对于激光束的记录功率的每个级别也计算关键参数。将关键参数投影到用于在其中记录数据的数据可重写型光学记录介质上。存储用于确定激光束的功率的临界参数的数据记录装置与用于识别光学记录介质的种类的ID数据相关联。存储用于确定激光束的功率的最佳记录功率的数据记录装置也与用于识别光学记录介质的种类的ID数据相关联。

2. 发明授权

US07142492B2 Optical recording medium 失效
标题翻译：光记录介质
公开(公告)号：US07142492B2
公开(公告)日：2006-11-28
申请号：US10519693
申请日：2003-06-27
申请人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
发明人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/0045
摘要： A method for determining the recording power of a laser beam so that jitter from a reproduced signal obtained by reproducing data recorded in a data rewritable type optical recording medium can be controlled within an acceptable tolerance even when cross erasing of data occurs. The power of a laser beam is measured for each level of the recording power of the laser beam. Critical parameters are calculated for each level of the recording power of the laser beam. The critical parameters are projected onto a data rewritable type optical recording medium for recording data therein. Direct overwriting required for saturating an influence of cross erasing of data is performed x times in one embodiment to determine a critical parameter. A data recording apparatus storing a critical parameter used for determining the power of a laser beam is associated with ID data for identifying the kind of optical recording medium. A data recording apparatus storing an optimum recording power used for determining the power of a laser beam is also associated with ID data for identifying the kind of optical recording medium.
摘要翻译：一种用于确定激光束的记录功率的方法，使得即使当数据发生交叉擦除时，也可以通过再现记录在数据可重写型光学记录介质中的数据而获得的再现信号的抖动被控制在可接受的公差内。针对激光束的记录功率的每个级别测量激光束的功率。针对激光束的记录功率的每个级别计算关键参数。将关键参数投影到用于在其中记录数据的数据可重写型光学记录介质上。在一个实施例中，执行用于饱和数据交叉擦除的影响所需的直接重写x次以确定关键参数。存储用于确定激光束的功率的临界参数的数据记录装置与用于识别光学记录介质的种类的ID数据相关联。存储用于确定激光束的功率的最佳记录功率的数据记录装置也与用于识别光学记录介质的种类的ID数据相关联。

3. 发明申请

US20060013089A1 Optical recording medium 失效
公开(公告)号：US20060013089A1
公开(公告)日：2006-01-19
申请号：US10519693
申请日：2003-06-27
申请人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
发明人： Tatsuhiro Kobayashi , Tatsuya Kato , Hiroyasu Inoue
IPC分类号： G11B7/12
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 the data rewritable type optical recording medium while varying a level of the recording power of the laser beam, reproducing the first test signal recorded in the data rewritable type optical recording medium, 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.

4. 发明申请

US20060072409A1 Optical recording medium 失效
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.

5. 发明申请

US20060013111A1 Method for recording data onto optical recording medium, data recording device, and optical recording medium 有权
标题翻译：将数据记录到光记录介质，数据记录装置和光记录介质上的方法
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。

6. 发明申请

US20050243676A1 Laser beam power modulation pattern decision method, device for recording data onto optical recording medium, and optical recording medium 失效
标题翻译：激光束功率调制模式决定方法，用于将数据记录到光记录介质上的装置和光记录介质
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。

7. 发明授权

US6115351A Phase change optical recording medium and its writing with high reliability after long period use and/or high environmental temperature storage 有权
标题翻译：相变光记录介质及其长期使用和/或高环境温度储存后的高可靠性写入
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

8. 发明授权

US6096400A Optical recording medium 失效
标题翻译：光记录介质
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

9. 发明授权

US07197005B2 Optical recording method and medium 有权
标题翻译：光记录方法和介质
公开(公告)号：US07197005B2
公开(公告)日：2007-03-27
申请号：US09971704
申请日：2001-10-09
申请人： Tatsuya Kato , Hideki Hirata , Hajime Utsunomiya , Hiroyasu Inoue
发明人： Tatsuya Kato , Hideki Hirata , Hajime Utsunomiya , Hiroyasu Inoue
IPC分类号： G11B7/24
CPC分类号： G11B7/24079 , G11B7/00454 , G11B7/006 , G11B7/00718 , G11B7/243 , G11B7/256 , G11B7/2578 , G11B7/258 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： In an optical recording medium including a grooved light-transparent substrate, a phase change recording layer, a dielectric layer and a reflective layer, recording is carried out by irradiating a laser beam to the recording layer through an objective lens in an optical system. The recording is carried out in a groove recording mode under the conditions: 0.48≦PT/(λ/NA)≦0.74, and PT≦0.50 μm wherein λ is a laser beam wavelength, NA is an objective lens numerical aperture, and PT is a track pitch, thereby forming a recorded mark having opposite ends extending out of the groove. This enables high density recording and increases the data transfer rate of a phase change optical recording medium.
摘要翻译：在包括带槽的光透明基板，相变记录层，电介质层和反射层的光记录介质中，通过光学系统中的物镜将激光束照射到记录层来进行记录。在凹槽记录模式下，在0.48≤P /（λ/ NA）<= 0.74和P <=0.50μm的条件下进行记录其中λ是激光束波长，NA是物镜数值孔径，并且P T T是轨道间距，从而形成具有相对端延伸出凹槽的记录标记。这使得能够进行高密度记录并增加相变光学记录介质的数据传送速率。

10. 发明授权

US06618349B2 Optical recording medium and its designing method 失效
标题翻译：光记录介质及其设计方法
公开(公告)号：US06618349B2
公开(公告)日：2003-09-09
申请号：US09788589
申请日：2001-02-21
申请人： Hiroyasu Inoue , Hajime Utsunomiya , Hiroshi Shingai , Tetsuro Mizushima , Tatsuya Kato
发明人： Hiroyasu Inoue , Hajime Utsunomiya , Hiroshi Shingai , Tetsuro Mizushima , Tatsuya Kato
IPC分类号： G11B700
CPC分类号： G11B7/007
摘要： In an optical recording medium of land/groove recording system, a sufficient tilt margin and a reduced cross talk are realized simultaneously with a sufficiently increased output. Provided is an optical recording medium having a light-transmitting substrate formed with grooves wherein the grooves and the region between adjacent grooves are used for the recording track, and a reading beam is irradiated through the light-transmitting substrate, wherein the relations: −12.6T+15.6≦x≦25T−3.8, and 0.55≦T≦0.68 are satisfied when the reading beam has a wavelength of &lgr;, the light-transmitting substrate has a refractive index at the wavelength &lgr; of n, the reading optical system has a numerical aperture of NA, recording track pitch is PT, the groove has a depth of &lgr;/(x·n), and T is PT/(&lgr;/NA).
摘要翻译：在平台/凹槽记录系统的光记录介质中，充分提高输出同时实现足够的倾斜余量和减少的串扰。提供了一种光记录介质，其具有形成有沟槽的光透射基板，其中沟槽和相邻凹槽之间的区域用于记录轨道，并且通过透光基板照射读取光束，其中满足关系：当读取光束具有lambd的波长时，透光衬底的折射率为n的波长，读取光学系统具有NA的数值孔径，记录轨道间距为PT，槽具有lambd的深度 /（xn），T为PT /（lambd / NA）。

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