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1. 发明授权

US5150351A Optical information recording apparatus for recording an input signal having variable width pulse duration and pulse spacing periods 失效
标题翻译：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。

2. 发明授权

US5109373A Optical information recording method 失效
标题翻译：光信息记录方法
公开(公告)号：US5109373A
公开(公告)日：1992-04-28
申请号：US546906
申请日：1990-07-02
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： G11B7/0045 , G11B7/006 , G11B7/125 , G11B20/10
CPC分类号： G11B7/0062 , G11B20/10009 , G11B7/0045 , G11B7/006 , G11B7/126
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 according with the modulated signals.

3. 发明授权

US5527661A Optical information recording medium 失效
标题翻译：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。

4. 发明授权

US5956308A Data storage apparatus 失效
标题翻译：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
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。

5. 发明授权

US5517485A Optical information recording medium having first and second tracks and apparatus for recording to and reproducing from the medium 失效
标题翻译：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。

6. 发明授权

US5289453A Optical information recording method 失效
标题翻译：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。

7. 发明授权

US5154957A Optical information recording medium 失效
标题翻译：光信息记录介质
公开(公告)号：US5154957A
公开(公告)日：1992-10-13
申请号：US717815
申请日：1991-06-19
申请人： Noboru Yamada , Kenichi Nishiuchi , Eiji Ohno , Kenichi Nagata , Nobuo Akahira
发明人： Noboru Yamada , Kenichi Nishiuchi , Eiji Ohno , Kenichi Nagata , Nobuo Akahira
IPC分类号： G11B7/24
CPC分类号： G11B7/24 , Y10S428/913 , Y10S430/146 , Y10T428/24917 , Y10T428/24926
摘要： An optical information medium has a transparent substrate which has a pair of optically smooth faces; a recording thin film which is formed on one of the faces of the substrate and is subjected to an optically detectable change upon irradiation of a laser beam thereon to; and a reinforcing plate which has a mechanical strength larger than that of the substrate.
摘要翻译：光学信息介质具有透明基板，该透明基板具有一对光学平滑面; 记录薄膜，其形成在所述基板的一个面上，并且在其上照射激光束时经受光学上可检测的变化; 以及具有比基板的机械强度大的机械强度的加强板。

8. 发明授权

US5811217A Optical information recording medium and optical information recording/reproducing method 失效
标题翻译：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）。

9. 发明授权

US5729513A Data storage apparatus for recording and reproducing information on a recording medium by rotating the recording medium at different angular velocities 失效
标题翻译：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。

10. 发明授权

US5493561A Optical information recording medium and information recording and reproducing method thereof 失效
标题翻译：光信息记录介质及其信息记录和再现方法
公开(公告)号：US5493561A
公开(公告)日：1996-02-20
申请号：US77373
申请日：1993-06-17
申请人： Kenichi Nishiuchi , Nobuo Akahira , Noboru Yamada , Eiji Ohno , Ken'ichi Nagata
发明人： Kenichi Nishiuchi , Nobuo Akahira , Noboru Yamada , Eiji Ohno , Ken'ichi Nagata
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/013 , G11B7/09 , G11B7/24 , G11B7/243 , G11B7/254 , B32B3/00
CPC分类号： G11B7/24 , G11B7/00454 , G11B7/00718 , G11B7/0938 , G11B7/24085 , G11B7/24079 , G11B7/243 , G11B7/254
摘要： An optical information recording medium, wherein concave and convex shaped guide grooves narrower in width W than the spot diameter of the laser beam is formed in the face of the recording film layer of a substrate, and the recording film layer undergoes optically detectable changes caused by the application of a laser beam thereto, the detectable changes being due to the changes in the optical phase of the reflected light or the transmitted light, and the changes in the optical phase being caused in the direction of reducing the optical phase difference between concave and convex portions of guide grooves disposed in the substrate.
摘要翻译：一种光学信息记录介质，其中在基板的记录膜层的表面上形成宽度W比激光束的光斑直径窄的凹凸引导槽，并且记录膜层经历光学上可检测的变化对其施加激光束，可检测的变化是由于反射光或透射光的光学相位的变化引起的，并且光学相位的变化是在减小凹面和凹部之间的光学相位差的方向上引起的设置在基板中的引导槽的凸部。

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