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    Optical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periods
    1.
    发明授权
    Optical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periods 失效
    光信息记录装置，用于记录具有可变宽度脉冲持续时间和脉冲间隔周期的输入信号

    公开(公告)号：US5150351A

    公开(公告)日：1992-09-22

    申请号：US712031

    申请日：1991-06-07

    申请人： Eiji Ohno ,  Kenichi Nishiuchi ,  Noboru Yamada ,  Kenzou Ishibashi ,  Kunio Kimura ,  Nobuo Akahira

    发明人： Eiji Ohno ,  Kenichi Nishiuchi ,  Noboru Yamada ,  Kenzou Ishibashi ,  Kunio Kimura ,  Nobuo Akahira

    IPC分类号： G11B7/006 ,  G11B20/10

    CPC分类号： G11B7/006 ,  G11B20/10009

    摘要： A recording apparatus overwrites an input signal having pulse duration periods and pulse spacing periods to an optical disk by irradiation of a laser beam to form recording marks corresponding to the pulse duration periods. The apparatus includes a detector for detecting a leading edge of the pulse duration period and for producing a start signal thereupon, another detector for detecting a trailing edge of the pulse duration period and for producing a stop signal thereupon, a pattern setting circuit for setting a predetermined basic pattern, and a pattern generator for generating the basic pattern from its beginning in response to the start signal and for terminating the generation of the basic pattern in response to the stop signal. The apparatus further includes a circuit for forming a modulated signal using a full or portion of the basic pattern produced from the pattern generator. The laser output is produced in accordance with the modulated signal.

    摘要翻译： 记录装置通过照射激光束将具有脉冲宽度周期和脉冲间隔周期的输入信号重写成光盘，以形成对应于脉冲持续时间段的记录标记。 该装置包括检测器，用于检测脉冲持续时间段的前沿并产生一个起始信号，另一个检测器，用于检测脉冲持续时间段的后沿并产生一个停止信号，一个模式设置电路，用于设置一个 预定的基本模式，以及用于响应于起始信号从其开始产生基本模式并响应于停止信号终止生成基本模式的模式发生器。 该装置还包括用于使用从图案发生器产生的全部或部分基本图案形成调制信号的电路。 根据调制信号产生激光输出。

    Optical information recording member comprising Au, TeO.sub.2 and Te
    3.
    发明授权
    Optical information recording member comprising Au, TeO.sub.2 and Te 失效
    包含Au，TeO 2和Te的光学信息记录部件

    公开(公告)号：US4587209A

    公开(公告)日：1986-05-06

    申请号：US715395

    申请日：1985-03-25

    申请人： Eiji Ohno ,  Kunio Kimura ,  Noboru Yamada ,  Nobuo Akahira

    发明人： Eiji Ohno ,  Kunio Kimura ,  Noboru Yamada ,  Nobuo Akahira

    IPC分类号： G03C1/72 ,  G11B7/243 ,  G11B7/257 ,  G03C1/94

    CPC分类号： G11B7/257 ,  G11B7/243 ,  G11B2007/24308 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/25706 ,  G11B2007/25708 ,  Y10S430/146 ,  Y10S430/165

    摘要： Disclosed is an optical information recording member which permits recording of optical information at a high speed and high density by means of energy of light or heat, as well as a high speed reproduction of the recorded information. The optical information recording member has a thin film formed on a substrate which thin film is made of TeOx constituted by a mixture of Te and TeO.sub.2 with a small amount of Au being added such that the contents of Te, O and Au in the thin film falls within a predetermined region limited in terms of atomic percent. The optical information recording member of the invention having the thin film of Te-O-Au system permits the information to be recorded in quite a short time thus allowing quite high speed of recording and reproduction as compared with the conventional recording film of TeOx system. The optical information recording member of the invention also brings about a higher recording sensitivity and a higher C/N ratio. Further, the optical information recording member may have a thermal diffusion layer of a metal having a higher heat conductivity than the thin film, formed on at least one side of the recording thin film, thereby making uniform and stabilizing the recording bits. In consequence, undesirable distortion of the recording bits is prevented even when an excessively large recording power is irradiated, thus affording a wider adaptability of the optical information recording member.

    摘要翻译： 公开了一种光信息记录部件，其允许通过光或热能量以高速和高密度记录光信息，以及记录信息的高速再现。 光学信息记录部件具有形成在基板上的薄膜，该薄膜由Te和TeO 2的混合物构成的TeOx和少量的Au相加，使得薄膜中的Te，O和Au的含量 落在受原子百分比限制的预定区域内。 具有Te-O-Au系统薄膜的本发明的光学信息记录部件允许在相当短的时间内记录信息，从而与TeOx系统的常规记录膜相比，可以实现相当高的记录和再现速度。 本发明的光信息记录部件也具有较高的记录灵敏度和较高的C / N比。 此外，光学信息记录部件可以具有形成在记录薄膜的至少一侧上的具有比薄膜更高的导热性的金属的热扩散层，从而使记录位均匀稳定。 因此，即使当照射过大的记录功率时也防止了记录位的不期望的失真，从而提供了光信息记录部件的更宽的适应性。

    Optical information recording medium
    4.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5527661A

    公开(公告)日：1996-06-18

    申请号：US512131

    申请日：1995-08-07

    申请人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Yoshitaka Sakaue ,  Noboru Yamada

    发明人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Yoshitaka Sakaue ,  Noboru Yamada

    IPC分类号： G11B7/005 ,  G11B7/24 ,  G11B7/243

    CPC分类号： G11B7/24 ,  G11B7/0051 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/00557 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2595 ,  Y10S430/146

    摘要： An optical recording medium according to the present invention includes a substrate, and a recording film formed on the substrate, when receiving a laser beam for recording, the recording film taking either a first structural state or a second structural state according to the intensity of the laser beam; when receiving a laser beam for reproducing, the recording film partially changing the optical phase of the laser beam for reproducing according to the structural state, thereby changing the intensity of the laser beam for reproducing, wherein the optical absorbance of the recording film in the first structural state is substantially equal to that of the recording film in the second structural state, and the refractive index of the recording film in the first structural state is substantially different from that of the recording film in the second structural state.

    摘要翻译： 根据本发明的光记录介质包括基板和形成在基板上的记录膜，当接收用于记录的激光束时，根据记录膜的强度采用第一结构状态或第二结构状态的记录膜 激光束; 当接收到用于再现的激光束时，记录膜根据结构状态部分地改变用于再现的激光束的光学相位，由此改变用于再现的激光束的强度，其中记录膜在第一 结构状态基本上等于第二结构状态下的记录膜的结构状态，并且在第一结构状态下的记录膜的折射率与第二结构状态下的记录膜的折射率基本不同。

    Optical information recording medium and optical information recording/reproducing method
    5.
    发明授权
    Optical information recording medium and optical information recording/reproducing method 失效
    光信息记录介质和光信息记录/再现方法

    公开(公告)号：US5811217A

    公开(公告)日：1998-09-22

    申请号：US257470

    申请日：1994-06-09

    申请人： Nobuo Akahira ,  Kenichi Nagata ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Noboru Yamada

    发明人： Nobuo Akahira ,  Kenichi Nagata ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Noboru Yamada

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/24 ,  G11B7/241 ,  G11B7/254 ,  G11B7/257

    CPC分类号： G11B7/24 ,  G11B7/00454 ,  Y10S430/146

    摘要： An optical information recording medium, which includes a substrate, and a recording thin film layer provided on the base material and adapted to form variation in an amount optically detectable by absorbing at least laser light so as to record information by partially varying the recording thin film layer and to reproduce the information by optically detecting the variation amount. The optical information recording medium further includes transparent layers each provided in contact with the recording thin film layer, and each of the transparent layers has optical thickness in which, in at least two different wavelengths .lambda., integral multiple of .lambda./2 is added to the thickness giving the large laser light absorption and large optical variation amount, respectively. More specifically, the optically detectable amount is of a reflectance factor variation, and in the different wavelengths .lambda.1 and .lambda.2, with respect to the thicknesses d1 and d2 of the transparent layers which give the optical characteristic more than 60% in the absorption, and more than 20% in the reflectance factor variation, the thickness of each transparent layer is arranged to be the thickness d having relation as represented by a following equation. d=d1+(.lambda.1/2).times.m=d2+(.lambda.2/2).times.1 (m, l: positive integer or zero).

    摘要翻译： 一种光学信息记录介质，其包括基板和设置在基材上的记录薄膜层，并且适于通过至少吸收激光来形成光学上可检测的量的变化，以便通过部分地改变记录薄膜来记录信息 并通过光学检测变化量再现信息。 光学信息记录介质还包括各自设置成与记录薄膜层接触的透明层，并且每个透明层具有光学厚度，其中在至少两个不同波长λ中的λ/ 2的整数倍被添加到 分别赋予大的激光吸收和大的光学变化量的厚度。 更具体地说，光学上可检测的量是反射率变化，并且在不同波长λ1和λ2中，相对于在吸收中给出大于60％的光学特性的透明层的厚度d1和d2， 和反射系数变化大于20％时，每个透明层的厚度被设置为具有如以下等式表示的关系的厚度d = d1 +（λ+ E，fra 1/2 + EE）xm = d2 +（λ+ E，fra 2/2 + EE）x1（m，l：正整数或零）。

    Data storage apparatus for recording and reproducing information on a recording medium by rotating the recording medium at different angular velocities
    6.
    发明授权
    Data storage apparatus for recording and reproducing information on a recording medium by rotating the recording medium at different angular velocities 失效
    数据存储装置，用于以不同的角速度旋转记录介质，在记录介质上记录和再现信息

    公开(公告)号：US5729513A

    公开(公告)日：1998-03-17

    申请号：US438501

    申请日：1995-05-10

    申请人： Nobuo Akahira ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Kenichi Nagata ,  Noboru Yamada

    发明人： Nobuo Akahira ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Kenichi Nagata ,  Noboru Yamada

    IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B19/12 ,  G11B19/247 ,  G11B19/26 ,  G11B19/28 ,  G11B20/12

    CPC分类号： G11B7/00454 ,  G11B19/26 ,  G11B7/0079 ,  G11B7/00745

    摘要： A track on the disk is divided into plural concentric zones on the radial position thereof. During recording, the angular velocity varies according to the zones accessed for recording, and the disk is driven at a rotational velocity whereby the angular velocity is constant within any single zone but decreases as the radial position of the zone of the accessed track approaches the outside circumference of the disk. During reproducing, the disk is driven at a rotational velocity whereby the angular velocity is constant in all zones. The range of change in the relative linear velocity of the head to the track is thus smaller and the change in the recording conditions is less during recording. During reproducing, there is no delay time required for rotational control of the disk, and the desired track can be more quickly accessed.

    摘要翻译： 磁盘上的轨道在其径向位置被分成多个同心区域。 在记录期间，角速度根据被记录的区域而变化，并且以旋转速度驱动盘，其中角速度在任何单个区域内是恒定的，但随着被访问的轨道的区域的径向位置接近外部而减小 盘的周长。 在再现期间，以旋转速度驱动盘，其中角速度在所有区域中是恒定的。 因此，磁头与磁道的相对线速度的变化范围变小，记录时记录条件的变化较小。 在再现期间，不需要用于盘的旋转控制的延迟时间，并且可以更快速地访问期望的轨道。

    Optical information recording medium
    8.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5410534A

    公开(公告)日：1995-04-25

    申请号：US77374

    申请日：1993-06-17

    申请人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

    发明人： Ken'ichi Nagata ,  Eiji Ohno ,  Nobuo Akahira ,  Ken'ichi Nishiuchi ,  Noboru Yamada

    IPC分类号： G11B7/005 ,  G11B7/24 ,  G11B3/70

    CPC分类号： G11B7/24 ,  G11B7/0051

    摘要： In an optical recording medium having concave and convex type signal pits formed on a substrate surface, a reflection layer is formed on the signal pits in such a manner that a reflection index of an interior of the signal pits is higher than a reflection index at a periphery of the signal pits with respect to a given reproduction laser beam wavelength. In an optical recording medium having a phase change recording layer which reversibly changes optical states upon application of laser energy, a structural phase difference between a reflection beam of non-recorded regions and a reflection beam of recorded regions of the optical recording medium with respect to the wavelength of a reproduction laser beam is in a range of (0.5-1.5)+2 n.pi. radians, where n is an integer. The phase change recording layer has principle components of Ge-Sb-Te or Sb-Se.

    摘要翻译： 在形成在基板表面上的具有凹凸型信号凹坑的光记录介质中，在信号凹坑上形成反射层，使得信号凹坑内部的反射指数高于信号凹坑内部的反射指数 信号的周边相对于给定的再现激光束波长凹坑。 在具有在施加激光能量时可逆地改变光学状态的相变记录层的光学记录介质中，非记录区域的反射光束和光学记录介质的记录区域的反射光束之间的结构相位差相对于 再现激光束的波长在（0.5-1.5）+2n pi弧度的范围内，其中n是整数。 相变记录层具有Ge-Sb-Te或Sb-Se的主要成分。

    Optical information recording apparatus for recording optical information in a phase change type optical recording medium and method therefor
    9.
    发明授权
    Optical information recording apparatus for recording optical information in a phase change type optical recording medium and method therefor 失效
    用于在相变型光学记录介质中记录光学信息的光学信息记录装置及其方法

    公开(公告)号：US5272667A

    公开(公告)日：1993-12-21

    申请号：US636919

    申请日：1990-12-31

    申请人： Noboru Yamada ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira

    发明人： Noboru Yamada ,  Kenichi Nishiuchi ,  Eiji Ohno ,  Nobuo Akahira

    IPC分类号： G11B7/0045 ,  G11B7/006 ,  G11B7/125 ,  G11B7/243 ,  G11B7/257 ,  G11B7/2585 ,  G11B7/2595 ,  G11B7/00 ,  G11C13/04

    CPC分类号： G11B7/126 ,  G11B7/00454 ,  G11B7/006 ,  G11B7/243 ,  G11B7/257 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B7/2585 ,  G11B7/2595

    摘要： There is disclosed an optical information recording apparatus for recording optical information in a phase change type optical recording medium and a method therefor. The order of the atomic arrangement of the optical recording medium is capable of changing between a first state of order thereof and a second state of order thereof higher than the first state. A first light source generates a first light including the optical information and projecting the generated first light on the optical recording medium so as to change the order of the atomic arrangement of the optical recording medium from the first state to the second state and from the second state to the first state, mainly by heating the optical recording medium. A second light source generates a second light and projects the generated second light on the optical recording medium together with the first light so as to accelerate the change in the order of the atomic arrangement of the optical recording medium from the first state to the second state caused by the first light source by mainly exciting electrons in the optical recording medium, thereby recording the optical information in the optical recording medium.

    摘要翻译： 公开了一种用于在相变型光学记录介质中记录光学信息的光学信息记录装置及其方法。 光记录介质的原子排列的顺序能够在第一状态和第二状态之间改变高于第一状态。 第一光源产生包括光学信息的第一光，并将生成的第一光投射在光学记录介质上，以便将光学记录介质的原子排列从第一状态到第二状态的顺序改变到第二状态 状态到第一状态，主要通过加热光学记录介质。 第二光源产生第二光，并将产生的第二光与第一光一起投射在光记录介质上，以便加速光记录介质的原子排列从第一状态到第二状态的顺序的改变 由光学记录介质中的主要激发电子由第一光源引起，从而将光学信息记录在光学记录介质中。