Optical information recording medium
    1.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号:US5385806A

    公开(公告)日:1995-01-31

    申请号:US842731

    申请日:1992-02-26

    IPC分类号: B41M5/26 G11B7/243 G03C1/705

    摘要: This invention, related to an optical information recording medium for recording, reproducing and erasing information by causing changes in the optical constant by using light, heat or other means, is intended to propose a recording film material of a novel composition in order to realize higher transfer rate of signals. Specifically, it is an alloy composed of indium (In) and A and B (A is at least one element selected from Ag, Cu, and B is at least one element selected from S, Se, Te), and more particularly it is composed in the vicinity of the stoichiometric compound of the above three-element system.Since the recording film material of this invention is fast in the rate of crystallization, it is possible to present an optical information recording medium that can cope with the forthcoming trend of higher transfer rate of signals.

    摘要翻译: 本发明涉及一种用于通过使用光,热或其它方式引起光学常数的改变来记录,再现和擦除信息的光学信息记录介质,旨在提出一种新型组合物的记录膜材料,以便实现更高的 信号传输速率。 具体地说,它是由铟(In)和A和B组成的合金(A是选自Ag,Cu和B中的至少一种元素是选自S,Se,Te中的至少一种元素),更特别地, 在上述三元素体系的化学计量化合物附近。 由于本发明的记录膜材料的结晶速度快,所以可以呈现一种光信息记录介质,可以应付信号传输速率较快的趋势。

    Optical recording disk and method for manufacturing the same
    3.
    发明授权
    Optical recording disk and method for manufacturing the same 失效
    光记录盘及其制造方法

    公开(公告)号:US6146734A

    公开(公告)日:2000-11-14

    申请号:US459453

    申请日:1999-12-13

    摘要: The present invention is to provide a method for manufacturing the PCE optical information recording disk under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.The PCE optical information recording disk is suitable to be used under the constant angular velocity (the constant rotational numbers wherein the disk has a characteristic that the crystallization velocity is designed to become faster from inside area of the disk to outside area in the radical direction thereof under control of not only the crystallization velocity but also the complex index of refraction and thus the reflectance on the disk surface.In the case of mass production and high film formation to be required, the present invention provides an effective method for manufacturing the optical disk by means of sputtering from at least two targets at the same time in a manner that the crystallization velocity is increased in a radial direction from inside area to outside area in the disk.

    摘要翻译: 本发明提供一种用于制造PCE光学信息记录盘的方法,该方法不仅可以控制结晶速度,而且可以控制复合折射率,从而在盘表面上的反射率。 PCE光学信息记录盘适用于以恒定角速度(其中盘具有结晶速度设计成从盘的内部区域到其沿自由度方向的外部区域变得更快的特性的恒定角速度 不仅可以控制结晶速度,而且可以控制复杂的折射率,从而提高光盘表面的反射率。在大量生产和需要高成膜的情况下,本发明提供了一种制造光盘的有效方法 通过同时从至少两个靶的溅射以使得结晶速度在盘的内部区域到外部区域的径向方向上增加的方式。

    Data storage apparatus
    4.
    发明授权
    Data storage apparatus 失效
    数据存储装置

    公开(公告)号:US5956308A

    公开(公告)日:1999-09-21

    申请号:US986492

    申请日:1997-12-08

    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 having first and second tracks and
apparatus for recording to and reproducing from the medium
    5.
    发明授权
    Optical information recording medium having first and second tracks and apparatus for recording to and reproducing from the medium 失效
    具有第一和第二轨道的光学信息记录介质和用于记录到介质并从介质再现的设备

    公开(公告)号:US5517485A

    公开(公告)日:1996-05-14

    申请号:US202442

    申请日:1994-02-28

    IPC分类号: G11B7/007 G11B11/105 G11B7/24

    摘要: An optical information recording medium includes: a substrate including first tracks having a first face and second tracks having a second face, the first face and the second face being optically at different positions in a direction of an incident light beam; and a recording layer provided on the substrate on which an optically detectable change is caused by irradiating the light beam; wherein the first and second tracks have an information recording area and an address area having a control information for the information recording area in a direction of the tracks, the address area has address pits in a part of the first tracks, the address pits being formed in a pattern according to specified code signals, and the information recording area has an portion on which information is recorded, the portion including at least the second tracks.

    摘要翻译: 光学信息记录介质包括:基板,包括具有第一面的第一轨道和具有第二面的第二轨道,所述第一面和所述第二面在入射光束的方向上在光学上位于不同的位置; 以及设置在基板上的记录层,通过照射光束在其上引起可光学检测的变化; 其中所述第一和第二轨道具有信息记录区域和地址区域,所述地址区域具有在所述轨道的方向上的所述信息记录区域的控制信息,所述地址区域在所述第一轨道的一部分中具有地址坑,所述地址坑被形成 在根据指定的代码信号的图案中,信息记录区域具有记录有信息的部分,该部分至少包括第二轨道。

    Method for fabricating optical information storage medium
    6.
    发明授权
    Method for fabricating optical information storage medium 失效
    光学信息存储介质的制造方法

    公开(公告)号:US5505835A

    公开(公告)日:1996-04-09

    申请号:US199550

    申请日:1994-02-22

    摘要: In forming steps of a recording layer or a dielectric layer of a phase change type optical disk by sputtering, a discharge gas which includes at least one of Kr gas and Xe gas is used. Alternatively, at least one of Ar gas and N.sub.2 gas may be further added to the discharge gas. Forming the recording layer or the dielectric layer of the phase change type optical disk in these discharge gases enables preventing of the introduction of the discharge gas into each layer during the forming steps. As a result, the void generation and growth in the recording layer is suppressed. Consequently, the deterioration of the cycle life characteristics due to repeated overwrite operations can be restrained. Therefore, high reliability and long life of the phase change type optical disk is attained.

    摘要翻译: 在通过溅射形成相变型光盘的记录层或电介质层的步骤中,使用包括Kr气体和Xe气体中的至少一种的放电气体。 或者,可以进一步向放电气体中添加Ar气体和N 2气体中的至少一种。 在这些放电气体中形成相变型光盘的记录层或电介质层能够防止在成形步骤期间将放电气体引入各层。 结果,抑制了记录层中的空隙生成和生长。 因此,可以抑制由于重复的重写操作引起的循环寿命特性的劣化。 因此,可以实现相变型光盘的高可靠性和长寿命。

    Optical information recording method
    8.
    发明授权
    Optical information recording method 失效
    光信息记录方法

    公开(公告)号:US5289453A

    公开(公告)日:1994-02-22

    申请号:US937101

    申请日:1992-08-31

    摘要: An optical information recording method in which a digital signal subjected to pulse width modulation is overwritten, by using one laser spot, on an optical disk including a first dielectric film, a recording film, a second dielectric film and a reflecting film stacked on a substrate in this order; the recording film having composition defined by a formula Ge.sub.x Sb.sub.y Te.sub.z satisfying 45.ltoreq.z.ltoreq.55.5, 0.5.ltoreq.y/(x+y).ltoreq.0.72 and x+y+z=100; the recording film having a thickness of 10 to 35 nm; the second dielectric film having a thickness of 5 to 40 nm; the reflecting film having a thickness of 35 nm or more; the optical information recording method comprising the steps of: converting each of a plurality of pulses contained in the digital signal, into a pulse train composed of pulses; and modulating a laser power between an erasing level and a recording level so as to overwrite the digital signal on the optical disk.

    摘要翻译: 一种光信息记录方法,其中通过使用一个激光点将经受脉冲宽度调制的数字信号重写在包括堆叠在基板上的第一电介质膜,记录膜,第二电介质膜和反射膜的光盘上 按此顺序 该记录膜具有由式GexSbyTez满足45≤Z≤55.5,0.5≤y/(x + y)<= 0.72和x + y + z = 100定义的组成。 记录膜的厚度为10〜35nm; 所述第二电介质膜的厚度为5〜40nm; 反射膜的厚度为35nm以上; 光信息记录方法包括以下步骤:将包含在数字信号中的多个脉冲中的每一个转换成由脉冲组成的脉冲串; 以及调制擦除电平和记录电平之间的激光功率,以覆盖光盘上的数字信号。

    Optical information recording apparatus for recording an input signal
having variable width pulse duration and pulse spacing periods
    10.
    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

    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。