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21. 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。

22. 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）。

23. 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。

24. 发明授权

US5568461A Optical information recording and reproducing apparatus 失效
标题翻译：光信息记录和再现装置
公开(公告)号：US5568461A
公开(公告)日：1996-10-22
申请号：US425902
申请日：1995-04-20
申请人： Kenichi Nishiuchi , Noyasu Miyagawa , Eiji Ohno , Nobuo Akahira
发明人： Kenichi Nishiuchi , Noyasu Miyagawa , Eiji Ohno , Nobuo Akahira
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/085 , G11B7/09 , G11B7/125 , G11B11/105 , G11B7/00
CPC分类号： G11B11/10595 , G11B7/0045 , G11B7/00456 , G11B7/005 , G11B7/00718 , G11B7/08505 , G11B7/08511 , G11B7/0901 , G11B7/0908 , G11B7/094 , G11B7/126 , G11B7/1267 , G11B7/007 , G11B7/00736
摘要： An optical information recording and reproducing apparatus for recording and reproducing an information signal on/from both concave portions and convex portions of guide grooves formed on a recording medium is disclosed. The optical information recording and reproducing apparatus includes: an optical portion for focusing a light beam emitted from a light source on the recording medium; a focusing control portion for controlling a focal point of the light beam; a tracking control portion for controlling the position of the light beam; a selection portion for selecting which of the concave portions and the convex portions of the guide grooves are used for recording or reproducing; a polarity inverting portion for inverting the polarity of an output signal from the tracking control portion depending on a result selected by the selection portion; a waveform setting portion for setting a modulation pattern for the light; and a signal reproduction portion for demodulating the information signal from a light reflected or transmitted by recorded marks recorded on the recording medium; wherein at least one of the focusing control portion, the tracking control portion, the waveform setting portion and the signal reproduction portion has at least two kinds of operation conditions for recording and reproducing the information signal on/from the concave portions and the convex portions of the guide grooves, and wherein the operation conditions are selected depending on the result selected by the selection portion.
摘要翻译：公开了一种用于在形成在记录介质上的引导槽的凹部和凸部上记录和再现信息信号的光学信息记录和再现装置。光信息记录和再现装置包括：用于将从光源发射的光束聚焦在记录介质上的光学部分; 用于控制光束的焦点的聚焦控制部分; 跟踪控制部分，用于控制光束的位置; 用于选择引导槽的哪个凹部和凸部用于记录或再现的选择部分; 极性反转部分，用于根据由选择部分选择的结果来反转来自跟踪控制部分的输出信号的极性; 用于设置光的调制图案的波形设置部分; 以及信号再现部分，用于从记录在记录介质上的记录标记反射或发射的光解调信息信号; 其中聚焦控制部分，跟踪控制部分，波形设置部分和信号再现部分中的至少一个具有至少两种操作条件，用于在凹部和凸部的凹部和凸部之间记录和再现信息信号引导凹槽，并且其中根据由选择部分选择的结果选择操作条件。

25. 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。

26. 发明授权

US5272667A Optical information recording apparatus for recording optical information in a phase change type optical recording medium and method therefor 失效
标题翻译：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。

27. 发明授权

US5233599A Optical disk with a recording layer composed of tellurium, antimony, and germanium 失效
标题翻译：具有由碲，锑和锗组成的记录层的光盘
公开(公告)号：US5233599A
公开(公告)日：1993-08-03
申请号：US765512
申请日：1991-09-25
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 , G11B7/241 , G11B7/243 , G11B7/257 , G11B7/258
CPC分类号： G11B7/241 , G11B7/00454 , G11B7/24 , G11B7/2433 , G11B7/258 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B2007/25716 , G11B7/2534 , G11B7/2585 , G11B7/2595
摘要： A rewritable phase change optical disk in which a first dielectric film, a recording film, a second dielectric film and a reflecting film are 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 wherein x, y and z are atomic percentages ranging from 7 to 17, 34 to 44 and 44 to 54, respectively, the x, y and z totalling 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 being made of one or an alloy of at least Au, Al, Ti, Cr and Ni and having a thickness of 35 nm or more.
摘要翻译：将第一电介质膜，记录膜，第二电介质膜和反射膜依次堆叠在基板上的可重写相变光盘; 记录膜具有由式GexSbyTez定义的组成，其中x，y和z分别为7至17,34至44和44至54的原子百分比，x，y和z总计100; 记录膜的厚度为10〜35nm; 所述第二电介质膜的厚度为5〜40nm; 反射膜由至少Au，Al，Ti，Cr和Ni的一种或合金制成，厚度为35nm以上。

28. 发明授权

US06697313B2 Optical information recording and reproducing system with overwrite capability and recording medium for use therewith 有权
标题翻译：具有覆盖能力的光信息记录和再现系统以及与其一起使用的记录介质
公开(公告)号：US06697313B2
公开(公告)日：2004-02-24
申请号：US10339857
申请日：2003-01-09
申请人： Ken'ichi Nagata , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira , Kenji Narumi
发明人： Ken'ichi Nagata , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira , Kenji Narumi
IPC分类号： G11B700
CPC分类号： G11B7/24085 , G11B7/0045 , G11B7/00454 , G11B7/00557 , G11B7/006 , G11B7/00745 , G11B7/0938 , G11B7/126 , G11B7/24079 , G11B20/1217 , G11B27/19 , G11B27/3027 , G11B27/36 , G11B2020/10898 , G11B2020/1232 , G11B2020/1265 , G11B2020/1287 , G11B2020/1288 , G11B2220/20 , G11B2220/2537
摘要： The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.
摘要翻译：本发明涉及一种可被覆盖的相变型光盘的记录和再现方法和装置。根据本发明，通过随机记录非反相写入数据或反转写入数据来扩展光盘重复重写的能力。通过在写入数据之前的写入数据和/或伪数据之前记录同步信号以使得不太可能发生热应力的方式来抑制由于记录的起始点和终止点处的重复重写导致的劣化。可以通过检测停止脉冲来停止记录来精确地确定记录结束位置。

29. 发明授权

US06683739B2 Optical information recording and reproducing system with overwrite capability and recording medium for use therewith 有权
公开(公告)号：US06683739B2
公开(公告)日：2004-01-27
申请号：US10254153
申请日：2002-09-24
申请人： Ken'ichi Nagata , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira , Kenji Narumi
发明人： Ken'ichi Nagata , Kenichi Nishiuchi , Eiji Ohno , Nobuo Akahira , Kenji Narumi
IPC分类号： G11B700
CPC分类号： G11B7/24085 , G11B7/0045 , G11B7/00454 , G11B7/00557 , G11B7/006 , G11B7/00745 , G11B7/0938 , G11B7/126 , G11B7/24079 , G11B20/1217 , G11B27/19 , G11B27/3027 , G11B27/36 , G11B2020/10898 , G11B2020/1232 , G11B2020/1265 , G11B2020/1287 , G11B2020/1288 , G11B2220/20 , G11B2220/2537
摘要： The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.

30. 发明授权

US5635267A Optical information recording medium of phase change type having variably grooved tracks depending on their radial locations 失效
标题翻译：相变型的光学信息记录介质根据其径向位置具有可变的凹槽轨迹
公开(公告)号：US5635267A
公开(公告)日：1997-06-03
申请号：US264496
申请日：1994-06-23
申请人： Noboru Yamada , Kenichi Nishiuchi , Shigeaki Furukawa , Nobuo Akahira , Eiji Ohno , Kenichi Nagata , Rie Kojima
发明人： Noboru Yamada , Kenichi Nishiuchi , Shigeaki Furukawa , Nobuo Akahira , Eiji Ohno , Kenichi Nagata , Rie Kojima
IPC分类号： G11B7/007 , B32B3/02
CPC分类号： G11B7/0079 , G11B7/24079 , Y10S428/913
摘要： In an optical information recording medium such that a recording layer undergoing an optically detectable phase change by absorbing a laser beam is formed on a transparent substrate having geometrically concavo-convex groove tracks concentrically or spirally formed on its surface, the shapes of the groove tracks are variably determined continuously or stepwise depending on the material of the substrate, the structure of the recording layer, and the radial locations of the tracks so that the thermal diffusivity of heat generated in the recording layer becomes larger in an inner part than in an outer part whereby the differences of recording characteristics between in an inner part and in an outer part are suppressed, and the effective recording area is enlarged. There is also disclosed an optical information recording medium having outer zone in which the groove width decreases monotonically or stepwise as recording radius decreases and inner zone in which the land width increases monotonically or stepwise as recording radius increases.
摘要翻译：在光学信息记录介质中，使得通过吸收激光束经历可光学检测的相位变化的记录层在其表面上同心地或螺旋地形成有几何凹凸槽轨道的透明基板上形成，凹槽轨迹的形状为根据基板的材料，记录层的结构和轨道的径向位置可变地确定连续或逐步地确定，使得在记录层中产生的热的热扩散率在内部比在外部部分变大从而抑制了内部和外部之间的记录特性的差异，并且有效记录区域被扩大。还公开了一种具有外部区域的光学信息记录介质，其中随着记录半径减小，凹槽宽度逐渐减小或逐步减小，并且随着记录半径增加，平面宽度单调或逐步增加的内部区域。

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