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    Optical information recording medium having first and second tracks and apparatus for recording to and reproducing from the medium
    51.
    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

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

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

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

    CPC分类号： G11B7/00745 ,  G11B7/00718 ,  G11B11/10565

    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。

    Optical information recording method
    52.
    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

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

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

    IPC分类号： G11B7/0045 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258 ,  G11B7/00

    CPC分类号： G11B7/00454 ,  G11B7/24 ,  G11B7/243 ,  G11B7/258

    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 medium and information recording and reproducing method therefor
    53.
    发明授权
    Optical information recording medium and information recording and reproducing method therefor 失效
    光信息记录介质及其信息记录和再现方法

    公开(公告)号：US5249175A

    公开(公告)日：1993-09-28

    申请号：US865640

    申请日：1992-04-09

    申请人： Nobuo Akahira ,  Kenichi Nishiuchi ,  Ken'ichi Nagata

    发明人： Nobuo Akahira ,  Kenichi Nishiuchi ,  Ken'ichi Nagata

    IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/24

    CPC分类号： G11B7/0051 ,  G11B7/00455 ,  G11B7/24

    摘要： An optical information recording medium includes a thin film material formed on a substrate; the optical constant of this thin film material is changed upon application of an incident light beam, such that the optical phase of reflected or transmitted light is shifted thereby reproducing a signal by detecting the change in either the reflected or transmitted light due to this optical phase change. It is also possible perform signal reproduction equivalent to conventional concave-convex pit methodology, but without being accompanied by resulting media deformation, thereby improving the recording density. It is easy to interchange with optical recording media of the write-once and read-only types, and, furthermore, it is possible to erase and rewrite at will.

    摘要翻译： 光学信息记录介质包括形成在基板上的薄膜材料; 这种薄膜材料的光学常数在施加入射光束时改变，使得反射或透射光的光学相位偏移，从而通过检测由于该光学相位的反射光或透射光的变化而再现信号 更改。 也可以执行等同于常规凹凸坑方法的信号再现，但不伴随所得的介质变形，从而提高记录密度。 可以容易地与一次写入和只读类型的光学记录介质进行交换，此外，可以随意擦除和重写。

    Optical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periods
    55.
    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。

    Method for recording, reproducing and erasing optical information
    57.
    发明授权
    Method for recording, reproducing and erasing optical information 失效
    记录，再现和擦除光信息的方法

    公开(公告)号：US4710911A

    公开(公告)日：1987-12-01

    申请号：US724887

    申请日：1985-04-19

    申请人： Noboru Yamada ,  Michiyoshi Nagashima ,  Kenichi Nishiuchi

    发明人： Noboru Yamada ,  Michiyoshi Nagashima ,  Kenichi Nishiuchi

    IPC分类号： G11B7/00 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/125 ,  G11B7/127 ,  G11B7/30

    CPC分类号： G11B7/127 ,  G11B7/0055 ,  G11B7/00557

    摘要： A read/write optical disk system for performing high-density recording, reproduction and erasing of information signals by utilizing reversible structural changes between the crystalline and amorphous states of a chalcogenide glass film or the like and a recording, reproducing and erasing method therefor. In the method of this invention, during the period of recording and erasing, respectively, an exposed film area is first heated beyond its melting point to obtain a random state of its atomic arrangement and the rate of cooling from this melted state is controlled so as to obtain a recorded state or an erased state. This method is realized in the system by arranging a plurality of laser spots of different intensities and lengths in proximity to each other on the same track thereby ensuring high-quality erasing involving no danger of any incomplete erasure.

    摘要翻译： 一种读/写光盘系统，用于通过利用硫族化物玻璃膜等的晶态和非晶状态之间的可逆结构变化及其记录，再现和擦除方法来执行信息信号的高密度记录，再现和擦除。 在本发明的方法中，在记录和擦除期间，首先将暴露的膜区域加热超过其熔点以获得其原子排列的随机状态，并且控制从该熔融状态的冷却速率，使得 以获得记录状态或擦除状态。 该方法通过在同一轨道上布置彼此不同的强度和长度的多个激光点，从而确保高质量的擦除而不会发生任何不完全擦除的危险，从而实现该方法。

    Method of recording information, equipment thereof and information recording medium
    60.
    发明授权
    Method of recording information, equipment thereof and information recording medium 有权
    记录信息的方法，设备和信息记录介质

    公开(公告)号：US07830779B2

    公开(公告)日：2010-11-09

    申请号：US10947255

    申请日：2004-09-23

    申请人： Katsuyuki Takahashi ,  Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Takashi Nishihara

    发明人： Katsuyuki Takahashi ,  Kenichi Nishiuchi ,  Naoyasu Miyagawa ,  Takashi Nishihara

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00454 ,  G11B7/00736 ,  G11B7/2403 ,  G11B7/24038 ,  G11B7/24094 ,  G11B7/268 ,  G11B2007/0013

    摘要： Because conditions for recording identification data of a medium vary in accordance with the structure of different media, such as a single-layer or a multiple-layer structure, stable data recording has been a difficult task. To solve this problem, an incident side of the laser beam for recording identification data on a single-layer optical disk 5 and a double-layer optical disk 6 is the opposite side of a substrate 1 upon which user data is recorded. From this structure, even in a double-layer optical disk 6, the recording is not affected by the recording layer of a second layer 12b and the like. Therefore, in the double-layer optical disk 6, identification data of the medium can be recorded under the same conditions as the single-layer optical disk 5.

    摘要翻译： 由于用于记录介质的识别数据的条件根据诸如单层或多层结构的不同介质的结构而变化，因此稳定的数据记录是一项艰巨的任务。 为了解决这个问题，用于在单层光盘5和双层光盘6上记录识别数据的激光束的入射侧是记录用户数据的基板1的相反侧。 根据该结构，即使在双层光盘6中，记录也不受第二层12b等的记录层的影响。 因此，在双层光盘6中，可以在与单层光盘5相同的条件下记录介质的识别数据。