公开(公告)号：US07848196B2

公开(公告)日：2010-12-07

申请号：US11791362

申请日：2006-05-18

申请人： Hiroyoshi Sekiguchi ,  Michiaki Shinotsuka ,  Masaru Shinkai ,  Eiko Hibino ,  Masaki Kato ,  Katsuyuki Yamada

发明人： Hiroyoshi Sekiguchi ,  Michiaki Shinotsuka ,  Masaru Shinkai ,  Eiko Hibino ,  Masaki Kato ,  Katsuyuki Yamada

IPC分类号： G11B7/12

CPC分类号： G11B20/1816 ,  G11B7/0062 ,  G11B7/1267 ,  G11B7/243 ,  G11B2007/0013

摘要： A power determining method is disclosed for determining the light emitting power of a light source upon recording information on an optical disk having plural rewritable recording layers, the method involving obtaining an optimum erasing power with respect to an optimum recording power by recording test data on the optical disk.

摘要翻译： 公开了一种功率确定方法，用于在具有多个可重写记录层的光盘上记录信息时确定光源的发光功率，该方法包括通过将测试数据记录在最佳记录功率上获得最佳擦除功率 光盘。

公开(公告)号：US07263055B2

公开(公告)日：2007-08-28

申请号：US10853985

申请日：2004-05-25

申请人： Katsuyuki Yamada ,  Yuki Nakamura ,  Masaki Kato

发明人： Katsuyuki Yamada ,  Yuki Nakamura ,  Masaki Kato

IPC分类号： G11B7/24 ,  G11B20/10

CPC分类号： G11B7/126 ,  G11B7/006

摘要： A method of recording and reproducing information in a phase-change optical recording medium by irradiation of an electromagnetic wave for recording, reproducing and/or rewriting information is proposed, wherein when information is recorded in the phase-change optical recording medium by modulating an input signal and conducting pulse width modulation recording, a recording pulse string for recording and rewriting is a continuous electromagnetic wave, and a recording pulse string for recording and rewriting, after the modulation of the input signal, is an electromagnetic wave pulse string having a front-pulse portion fp, a multi-pulse portion mp with a total pulse duration period T and a duty ratio y, and an off-pulse portion op, wherein the duty ratio y is decreased as a recording linear velocity for the phase-change optical recording medium is increased, whereby multi-speed recording or CAV (constant angular velocity) recording is carried out. An information recording and reproducing apparatus, using the above method, is also proposed.

摘要翻译： 提出了通过照射用于记录，再现和/或重写信息的电磁波在相变光学记录介质中记录和再现信息的方法，其中当信息通过调制输入而被记录在相变光学记录介质中时 信号和导通脉冲宽度调制记录，用于记录和重写的记录脉冲串是连续电磁波，并且用于在输入信号的调制之后用于记录和重写的记录脉冲串是具有前置信号的电磁波脉冲串， 脉冲部分fp，具有总脉冲持续时间周期T和占空比y的多脉冲部分mp和截止脉冲部分op，其中占空比y作为用于相变光学记录的记录线速度减小 介质增加，由此进行多速记录或CAV（恒定角速度）记录。 还提出了使用上述方法的信息记录和再现装置。

公开(公告)号：US06996041B2

公开(公告)日：2006-02-07

申请号：US10620692

申请日：2003-07-17

申请人： Masaki Kato ,  Yuki Nakamura ,  Katsuyuki Yamada

发明人： Masaki Kato ,  Yuki Nakamura ,  Katsuyuki Yamada

IPC分类号： G11B7/00

CPC分类号： G11B20/10 ,  G11B7/0053 ,  G11B7/00745 ,  G11B19/04 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10981 ,  G11B2020/1099 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1269 ,  G11B2020/1275 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562

摘要： A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting from an address t2 to which access is made either when the recording apparatus performs the recording operation or when the recording apparatus performs reproducing operation; and an area A3 starting from an address t3 to which access is made either when either the recording apparatus or a reproducing apparatus performs recording or when either the recording apparatus or the reproducing apparatus performs reproducing. The addresses t are set consecutively with respect to a physical arrangement of the sectors in each of the areas A2 and A3, and the area A1 has at least one inconsecutive part at which the addresses t are not consecutive with respect to the physical arrangement of the sectors.

摘要翻译： 对于每个扇区具有地址t的可记录光信息记录介质包括：区域A 1，从地址t 1开始，仅在记录装置执行记录操作时进行访问; 当记录装置执行记录操作时或当记录装置执行再现操作时，从地址t 2开始进入存取的区域A 2; 以及从记录装置或再现装置执行记录时或当记录装置或再现装置进行再现时都可以进行访问的地址t 3开始的区域A 3。 地址t相对于区域A 2和A 3中的每一个中的扇区的物理布置被连续地设置，并且区域A 1具有至少一个不连续的部分，在该区域中地址t不相对于物理 部门安排。

公开(公告)号：US06757232B2

公开(公告)日：2004-06-29

申请号：US09779000

申请日：2001-02-07

申请人： Katsuyuki Yamada ,  Yuki Nakamura ,  Masaki Kato

发明人： Katsuyuki Yamada ,  Yuki Nakamura ,  Masaki Kato

IPC分类号： G11B700

CPC分类号： G11B7/126 ,  G11B7/006

摘要： A method of recording and reproducing information in a phase-change optical recording medium by irradiation of an electromagnetic wave for recording, reproducing and/or rewriting information is proposed, wherein when information is recorded in the phase-change optical recording medium by modulating an input signal and conducting pulse width modulation recording, a recording pulse string for recording and rewriting is a continuous electromagnetic wave, and a recording pulse string for input signal, is an electromagnetic wave pulse string having a front-pulse portion fp, a multi-pulse portion mp with a total pulse duration period T and a duty ratio y, and an off-pulse portion op, wherein the duty ratio y is decreased as a recording linear velocity for the phase-change optical recording medium is increased, whereby multi-speed recording or CAV (constant angular velocity) recording is carried out. An information recording and reproducing apparatus, using the above method, is also proposed.

摘要翻译： 提出了通过照射用于记录，再现和/或重写信息的电磁波在相变光学记录介质中记录和再现信息的方法，其中当信息通过调制输入而被记录在相变光学记录介质中时 信号和导通脉冲宽度调制记录，用于记录和重写的记录脉冲串是连续电磁波，并且用于输入信号的记录脉冲串是具有前脉冲部分fp，多脉冲部分 具有总脉冲持续时间周期T和占空比y的脉冲宽度和其中占空比y随着相变光学记录介质的记录线速度而减小的截止脉冲部分op增加，从而多速记录 或CAV（恒定角速度）记录。 还提出了使用上述方法的信息记录和再现装置。

公开(公告)号：US07894315B2

公开(公告)日：2011-02-22

申请号：US10582481

申请日：2006-05-25

申请人： Masaki Kato ,  Katsuyuki Yamada ,  Kazunori Ito ,  Michiaki Shinotsuka ,  Eiko Hibino ,  Masaru Shinkai ,  Hiroyoshi Sekiguchi

发明人： Masaki Kato ,  Katsuyuki Yamada ,  Kazunori Ito ,  Michiaki Shinotsuka ,  Eiko Hibino ,  Masaru Shinkai ,  Hiroyoshi Sekiguchi

IPC分类号： G11B7/00

CPC分类号： G11B20/1217 ,  G11B7/00456 ,  G11B7/00736 ,  G11B7/1267 ,  G11B7/24038 ,  G11B7/24082 ,  G11B7/268 ,  G11B27/19 ,  G11B27/24 ,  G11B2007/0013 ,  G11B2020/1275 ,  G11B2020/1288 ,  G11B2220/216 ,  G11B2220/235 ,  G11B2220/2537

摘要： A method of recording information using a laser on a multilayer optical disk having a plurality of recording layers is provided. The plurality of recording layers include a first recording layer and a second recording layer adjacent the first recording layer. The first recording layer is provided with a first test writing area to be used for calibration of write power, and the second recording layer is provided with a second test writing area to be used for calibration of write power. The disk is arranged so that a first region of the first test writing area is superposed with a second region of the second test writing area when considered in the direction in which the laser is arranged to irradiate. The method comprises, if the second region of the second test writing area is unrecorded, recording data in the second region of the second test writing area, thereby converting the second region of the second test writing area into a recorded state; and once the second region of the second test writing area has been converted into a recorded state, performing test writing in the first region of the first test writing area.

摘要翻译： 提供了一种在具有多个记录层的多层光盘上使用激光记录信息的方法。 多个记录层包括与第一记录层相邻的第一记录层和第二记录层。 第一记录层设置有用于校准写入功率的第一测试写入区域，并且第二记录层设置有用于校准写入功率的第二测试写入区域。 光盘布置成使得第一测试写入区域的第一区域与第二测试写入区域的第二区域重叠，在激光器被布置成照射的方向上考虑。 该方法包括如果第二测试写入区域的第二区域未被记录，则在第二测试写入区域的第二区域中记录数据，从而将第二测试写入区域的第二区域转换为记录状态; 并且一旦第二测试写入区域的第二区域已被转换为记录状态，则在第一测试写入区域的第一区域中执行测试写入。

公开(公告)号：US07351516B2

公开(公告)日：2008-04-01

申请号：US10699878

申请日：2003-11-04

申请人： Masaki Kato ,  Katsuyuki Yamada

发明人： Masaki Kato ,  Katsuyuki Yamada

IPC分类号： G11B7/24

CPC分类号： G11B7/257 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/0062 ,  G11B7/243 ,  G11B7/266 ,  G11B7/268 ,  G11B2007/25715 ,  Y10S430/146

摘要： An optical information recording medium, especially a CD-RW medium, that can undergo direct overwriting at high speed is disclosed. The optical information recording medium includes a transparent substrate, at least a recording layer and a reflective layer on or above the substrate and is capable of performing at least one of recording, erasing and rewriting information by irradiating and scanning with focused light to thereby form and/or erase recording marks on the recording layer. The recording layer contains an alloy and/or an intermetallic compound mainly containing Ga, Ge, Sb, and Te in a compositional ratio represented by the following formula: GaxGey(SbzTe1-z)1-x-y wherein x, y, and z each represent an atomic ratio of a positive real number less than 1 and satisfy the following conditions: 0.02≦x≦0.06, 0.01≦y≦0.06, 0.80≦z≦0.86, x≧y, and x+y≦0.1.

摘要翻译： 公开了可以高速直接重写的光学信息记录介质，特别是CD-RW介质。 光信息记录介质包括透明基板，至少记录层和反射层在基板上或上方，并且能够通过用聚焦光照射和扫描来执行记录，擦除和重写信息中的至少一个，从而形成和 /或擦除记录层上的记录标记。 记录层含有以下述式表示的组成比的主要含有Ga，Ge，Sb，Te的合金和/或金属间化合物：＆lt;＆lt;直线式说明=“In-line formula”end =“ 导线“→> Ga 1 1 1-xy <？in-line-formula description =“In-line Formulas”end =“tail”？>其中x，y和z分别代表小于1的正实数的原子比，并满足下列条件 条件：0.02 <= x <= 0.06,0.01 <= y <= 0.06,0.80 <= z <= 0.86，x> = y，x + y <= 0.1。

公开(公告)号：US07482109B2

公开(公告)日：2009-01-27

申请号：US10062912

申请日：2002-01-31

申请人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

发明人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/006 ,  G11B7/126 ,  G11B7/2403 ,  G11B7/24067 ,  G11B7/2542 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

摘要： A phase change optical recording medium includes at least a supporting substrate and a recording layer essentially consisting of AgInSbTe alloy compositions implementing recording and readout steps utilizing changes in reflectivity. The recording medium is characterized by the relation v0≧0.7 vWH, where the critical relative velocity of phase change, v0, defined by the value of v, at which the differential coefficient, −dR(v)/dv, reaches a maximum, when the recording medium moves against an optical unit during the recording steps at a relative velocity, v, ranging from minimum and maximum relative velocities warranted for the recording medium, vWL and vWH, respectively. When the reflectivity is measured with varying erase power PE at the linear relative scanning velocity v0, the reflectivity of the recording layer as a function of erase power, R(PE), preferably has a minimum. The recording layer has an activation energy of deterioration equal to or greater than 1.6 eV, which is obtained by measuring asymmetry, A, and calculating according to the equations, k=dt/dA, and k=k0×exp(Ea/kBT). The recording medium is also characterized by activation energy of displacement of the boundary, ranging from 1.0 eV to 2.4 eV, which is obtained from the rate of decrease in the area, S, of the amorphous regions as recorded marks with time according to Arrhenius' equation.

摘要翻译： 相变光学记录介质至少包括支撑基板和基本上由AgInSbTe合金组合物组成的记录层，其实现利用反射率变化的记录和读出步骤。 记录介质的特征在于v0> = 0.7vWH，其中相位变化的临界相对速度v0由v的值定义，其中微分系数-dR（v）/ dv达到最大值， 当记录介质在记录步骤期间以相对速度v移动时，记录介质分别从记录介质vWL和vWH所需的最小和最大相对速度范围内移动。 当以线性相对扫描速度v0的变化的擦除功率PE测量反射率时，作为擦除功率R（PE）的函数的记录层的反射率优选地具有最小值。 记录层具有等于或大于1.6eV的激活能量，其通过测量不对称性A而获得，并且根据等式k = dt / dA和k = k0xexp（Ea / kBT）进行计算。 该记录介质的特征还在于边界位移的活化能为1.0eV至2.4eV，其从非晶区域的减小速率S得到，随着时间的推移，Arrhenius' 方程。

公开(公告)号：US20060239145A1

公开(公告)日：2006-10-26

申请号：US11430186

申请日：2006-05-09

申请人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

发明人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

IPC分类号： G11B7/24 ,  G11B5/09

CPC分类号： G11B20/10 ,  G11B7/0053 ,  G11B7/00745 ,  G11B19/04 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10981 ,  G11B2020/1099 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1269 ,  G11B2020/1275 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562

摘要： A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting from an address t2 to which access is made either when the recording apparatus performs the recording operation or when the recording apparatus performs reproducing operation; and an area A3 starting from an address t3 to which access is made either when either the recording apparatus or a reproducing apparatus performs recording or when either the recording apparatus or the reproducing apparatus performs reproducing. The addresses t are set consecutively with respect to a physical arrangement of the sectors in each of the areas A2 and A3, and the area A1 has at least one inconsecutive part at which the addresses t are not consecutive with respect to the physical arrangement of the sectors.

摘要翻译： 对于每个扇区具有地址t的可记录光信息记录介质包括：区域A 1，从地址t 1开始，仅在记录装置执行记录操作时进行访问; 当记录装置执行记录操作时或当记录装置执行再现操作时，从地址t 2开始进入存取的区域A 2; 以及从记录装置或再现装置执行记录时或当记录装置或再现装置进行再现时都可以进行访问的地址t 3开始的区域A 3。 地址t相对于区域A 2和A 3中的每一个中的扇区的物理布置被连续设置，并且区域A 1具有至少一个不连续的部分，在该区域中，地址t相对于物理 部门安排。

公开(公告)号：US07072258B2

公开(公告)日：2006-07-04

申请号：US10620351

申请日：2003-07-17

申请人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

发明人： Masaki Katoh ,  Yuki Nakamura ,  Katsuyuki Yamada

IPC分类号： G11B7/00 ,  G11B19/02

CPC分类号： G11B20/10 ,  G11B7/0053 ,  G11B7/00745 ,  G11B19/04 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1258 ,  G11B27/105 ,  G11B27/24 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/10981 ,  G11B2020/1099 ,  G11B2020/1232 ,  G11B2020/1267 ,  G11B2020/1269 ,  G11B2020/1275 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562

摘要： A recordable optical information recording medium having an address t for each sector, comprises: an area A1 starting from an address t1 to which access is made only when a recording apparatus performs recording operation; an area A2 starting from an address t2 to which access is made either when the recording apparatus performs the recording operation or when the recording apparatus performs reproducing operation; and an area A3 starting from an address t3 to which access is made either when either the recording apparatus or a reproducing apparatus performs recording or when either the recording apparatus or the reproducing apparatus performs reproducing. The addresses t are set consecutively with respect to a physical arrangement of the sectors in each of the areas A2 and A3, and the area A1 has at least one inconsecutive part at which the addresses t are not consecutive with respect to the physical arrangement of the sectors.

摘要翻译： 对于每个扇区具有地址t的可记录光信息记录介质包括：区域A 1，从地址t 1开始，仅在记录装置执行记录操作时进行访问; 当记录装置执行记录操作时或当记录装置执行再现操作时，从地址t 2开始进入存取的区域A 2; 以及从记录装置或再现装置执行记录时或当记录装置或再现装置进行再现时都可以进行访问的地址t 3开始的区域A 3。 地址t相对于区域A 2和A 3中的每一个中的扇区的物理布置被连续设置，并且区域A 1具有至少一个不连续的部分，在该区域中，地址t不相对于物理 部门安排。

公开(公告)号：US06445669B1

公开(公告)日：2002-09-03

申请号：US09471345

申请日：1999-12-23

申请人： Kyohji Hattori ,  Fumiya Ohmi ,  Kenichi Aihara ,  Katsuyuki Yamada ,  Yuki Nakamura ,  Eiji Noda ,  Michihisa Takahashi ,  Yujiro Kaneko ,  Yukio Ide

发明人： Kyohji Hattori ,  Fumiya Ohmi ,  Kenichi Aihara ,  Katsuyuki Yamada ,  Yuki Nakamura ,  Eiji Noda ,  Michihisa Takahashi ,  Yujiro Kaneko ,  Yukio Ide

IPC分类号： G11B700

CPC分类号： G11B7/268 ,  G11B7/127

摘要： A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distribution of the laser power focused on the recording medium, in the direction perpendicular to guide tracks the laser device preferably has less average smaller in both end regions of the spatial distribution, which have each 10% of the width at half maximum of the distribution, than the average in the center region of the full width at half maximum of the distribution.

摘要翻译： 提供了一种使用包含半导体激光器件的光学系统来初始化相变光学信息记录介质的方法。 激光装置的特征在于具有特定的空间功率分布。 在聚焦在记录介质上的激光功率的空间分布中，在垂直于导轨的方向上，激光装置优选在空间分布的两个端部区域中的平均值较小，其中每个10％的宽度为半高 分布，均比中心区域的全宽度分布的半个最大值。