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    Optical recording medium
    1.
    发明申请
    Optical recording medium 审中-公开
    光记录介质

    公开(公告)号：US20060291368A1

    公开(公告)日：2006-12-28

    申请号：US11445290

    申请日：2006-06-02

    申请人： Katsuyuki Yamada ,  Shinya Narumi ,  Masaki Kato ,  Yuki Nakamura

    发明人： Katsuyuki Yamada ,  Shinya Narumi ,  Masaki Kato ,  Yuki Nakamura

    IPC分类号： G11B3/70

    CPC分类号： G11B7/259 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/254 ,  G11B7/256 ,  G11B7/2578 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716

    摘要： An object of the present invention is to provide an optical recording medium which exhibits high storage reliability in high-temperature/high-humidity conditions, stable performance at high temperatures, appropriate mechanical properties and high productivity and is capable of reproducing and recording at high speeds. It is an optical recording medium containing a lower protective layer, an optical recording layer, an upper protective layer and an optical reflective layer which contains 98% by weight or more of Ag that are formed on the substrate, the thickness of the optical recording layer is 8 nm to 14 nm and the thickness of the upper protective layer is 4 nm to 24 nm, the upper protective layer contains at least one of zinc oxide, indium oxide, tin oxide, niobium oxide, silicon nitride, aluminum nitride and SiOx (1.6≦x≦1.9) and less than 0.1% by weight of at least any one of sulfur and chlorine, and the upper protective layer is amorphous after recording or rewriting.

    摘要翻译： 本发明的目的是提供一种在高温/高湿条件下具有高储存可靠性，高温下性能稳定，机械性能好，生产率高，并且能够高速再现和记录的光记录介质 。 光记录层的厚度是含有下保护层，光记录层，上保护层和含有98重量％以上的Ag的光反射层的光记录介质， 为8nm〜14nm，上保护层的厚度为4nm〜24nm，上保护层含有氧化锌，氧化铟，氧化锡，氧化铌，氮化硅，氮化铝和SiO x（ 1.6 <= x <= 1.9）和小于0.1重量％的硫和氯中的至少一种，并且上保护层在记录或重写之后是非晶的。

    Method of recording and reproducing information and apparatus for recording and reproducing information using the method
    2.
    发明授权
    Method of recording and reproducing information and apparatus for recording and reproducing information using the method 有权
    使用该方法记录和再现用于记录和再现信息的信息和装置的方法

    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。

    Method of recording and reproducing information and apparatus for recording and reproducing information using the method
    5.
    发明授权
    Method of recording and reproducing information and apparatus for recording and reproducing information using the method 有权
    使用该方法记录和再现用于记录和再现信息的信息和装置的方法

    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。

    Optical information recording medium
    6.
    发明授权
    Optical information recording medium 有权
    光信息记录介质

    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。

    Optical information recording medium and recording apparatus
    7.
    发明申请
    Optical information recording medium and recording apparatus 有权
    光信息记录介质和记录装置

    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。

    Optical information recording medium and recording apparatus
    10.
    发明授权
    Optical information recording medium and recording apparatus 有权
    光信息记录介质和记录装置

    公开(公告)号：US07539098B2

    公开(公告)日：2009-05-26

    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： 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： 具有每个扇区具有地址t的可记录光信息记录介质包括：仅在记录装置进行记录操作时从地址t1开始访问的区域A1; 从记录装置执行记录操作或当记录装置进行再现操作时进行访问的地址t2开始的区域A2; 以及从记录装置或再现装置执行记录时或者当记录装置或再现装置进行再现时都进行访问的地址t3开始的区域A3。 地址t相对于区域A2和A3中的每一个的扇区的物理布置连续设置，并且区域A1具有至少一个不连续的部分，其中地址t不相对于物理布置的连续 部门。