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1. 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。

2. 发明授权

US5424106A Optical information recording medium and method of designing its structure 失效
标题翻译：光信息记录介质及其结构设计方法
公开(公告)号：US5424106A
公开(公告)日：1995-06-13
申请号：US45876
申请日：1993-04-15
申请人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
发明人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
IPC分类号： G11B7/006 , G11B7/24 , B32B3/00
CPC分类号： G11B7/006 , G11B7/24 , Y10S428/913 , Y10S430/146 , Y10T428/21 , Y10T428/31678
摘要： Phase-change-type optical recording medium comprises a first dielectric layer, a recording layer made of a phase change material, a second dielectric layer and a reflecting layer wherein the thicknesses of the first and second dielectric layers are determined for a given thickness of the recording layer so that the following conditions are satisfied;.DELTA.A+.DELTA.R.gtoreq.20% and .DELTA.A.gtoreq.5%wherein.DELTA.A=A(cry)-A(amo),A(cry), A(amo): light absorption rates of the recording layer in the crystal state and amorphous state, respectively,.DELTA.R=R(cry)-R(amo),R(cry) and R(amo): light reflection rates of the recording lates in the crystal state and amorphous state, respectively.
摘要翻译：相变型光学记录介质包括第一介质层，由相变材料制成的记录层，第二介电层和反射层，其中确定第一和第二介电层的厚度为给定的厚度记录层，以满足以下条件; DELTA A + DELTA R> / = 20％和DELTA A> / = 5％其中DELTA A = A（cry）-A（amo），A（cry），A（amo）：记录层的光吸收率晶体状态和非晶态分别为：晶体状态和非晶态的记录层的光反射率分别为：DELTA R = R（cry）-R（amo），R（cry）和R（amo）

3. 发明授权

US5545454A Optical information recording medium and method of designing its structure 失效
公开(公告)号：US5545454A
公开(公告)日：1996-08-13
申请号：US399215
申请日：1995-03-06
申请人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
发明人： Noboru Yamada , Nobuo Akahira , Kenichi Nishiuchi , Kenichi Nagata , Eiji Ohno , Shigeaki Furukawa
IPC分类号： G11B7/006 , G11B7/24 , B32B3/00
CPC分类号： G11B7/006 , G11B7/24 , Y10S428/913 , Y10S430/146 , Y10T428/21 , Y10T428/31678
摘要： Phase-change-type optical recording medium comprises a first dielectric layer, a recording layer made of a phase change material, a second dielectric layer and a reflecting layer wherein the thicknesses of the first and second dielectric layers are determined for a given thickness of the recording layer so that the following conditions are satisfied;.DELTA.A+.DELTA.R.gtoreq.20% and .DELTA.A.gtoreq.5%wherein.DELTA.A=A(cry)-A(amo),A(cry), A(amo): light absorption rates of the recording layer in the crystal state and amorphous state, respectively,.DELTA.R=R(cry)-R(amo),R(cry) and R(amo): light reflection rates of the recording lates in the crystal state and amorphous state, respectively.

4. 发明授权

US06388984B2 Optical information recording medium and its recording and reproducing method 失效
标题翻译：光信息记录介质及其记录和再现方法
公开(公告)号：US06388984B2
公开(公告)日：2002-05-14
申请号：US09140296
申请日：1998-08-25
申请人： Hideki Kitaura , Noboru Yamada , Ken'ichi Nagata , Kenichi Nishiuchi , Shigeaki Furukawa
发明人： Hideki Kitaura , Noboru Yamada , Ken'ichi Nagata , Kenichi Nishiuchi , Shigeaki Furukawa
IPC分类号： G11B724
CPC分类号： G11B7/00718 , G11B7/24 , G11B7/24079
摘要： A reflectance increasing type optical information recording medium in which the crosstalk is inhibited in the land and groove recording. This optical information recording medium comprises a substrate having a groove and a land provided between adjacent grooves and a recording layer that is provided on the substrate and that changes the reflectance by irradiation with light beams. In this recording medium, the reflectance after recording is greater than the reflectance before recording. Moreover, the depth D of the groove is set to be in the range of &lgr;/8n to 3&lgr;/8n, where the wavelength of the light beam is &lgr; and the refractive index of the substrate is n. And the difference, &Dgr;&phgr;=&phgr;1−&phgr;0, between the phase &phgr;1 of the reflected light after recording and the phase &phgr;0 of the reflected light before recording is in the range of (−0.1+2 m) &pgr; to (0.1+2 m) &pgr;, where m is an integer.
摘要翻译：反射率增加型光信息记录介质，其中在纹间和凹槽记录中阻止串扰。该光学信息记录介质包括具有沟槽和设置在相邻沟槽之间的焊盘的衬底和设置在衬底上并通过照射光束来改变反射率的记录层。在该记录介质中，记录后的反射率大于记录前的反射率。此外，凹槽的深度D设定在lambd / 8n至3lambd / 8n的范围内，其中光束的波长为羔羊，并且基板的折射率为n。并且记录后的反射光的相位phi1与记录前的反射光的相位phi0之间的差值DELTAphi = phi1-phi0在（-0.1 + 2m）pi到（0.1 +2μm）的范围内 pi，其中m是整数。

5. 发明授权

US06060221A Method and apparatus for initializing optical recording medium 失效
标题翻译：用于初始化光记录介质的方法和装置
公开(公告)号：US06060221A
公开(公告)日：2000-05-09
申请号：US800609
申请日：1997-02-14
申请人： Shigeaki Furukawa , Katsumi Kawahara , Noboru Yamada , Kenichi Nishiuchi
发明人： Shigeaki Furukawa , Katsumi Kawahara , Noboru Yamada , Kenichi Nishiuchi
IPC分类号： G11B7/26 , G11B7/24
CPC分类号： G11B7/26
摘要： In a method and an apparatus initializing an optical recording medium by irradiating a flash light. Walls are formed on a holder for holding the optical recording medium so as to adjoin an inner edge and an outer edge of the optical recording medium. When a flash light irradiates, a part of incident light which obliquely enters into an inner and an outer periphery regions of the optical recording medium is shaded by the walls. A quantity of the incident light incident on a unit area in each of the inner and outer periphery regions is less than that in a recording region between the inner and outer periphery regions. When temperature in the recording region reaches to an initializing temperature, the temperature in each of the inner and outer periphery regions is lower than the initializing temperature. So that neither cracks nor corrugations occur in a recording layer in the inner and outer regions.
摘要翻译：在通过照射闪光灯来初始化光学记录介质的方法和装置中。壁形成在保持器上，用于保持光学记录介质，以便邻接光记录介质的内边缘和外边缘。当闪光灯照射时，倾斜地进入光记录介质的内周区域和外周区域的入射光的一部分被壁遮蔽。入射到内外周区域的单位面积的入射光量比内外周区域的记录区域的入射光量少。当记录区域中的温度达到初始化温度时，每个内周区域和外周区域中的温度都低于初始化温度。因此，在内外区域的记录层中既不发生裂纹也不发生褶皱。

6. 发明授权

US07881173B2 Optical information recording method, optical information recording device and optical information recording medium 有权
标题翻译：光信息记录方法，光信息记录装置和光信息记录介质
公开(公告)号：US07881173B2
公开(公告)日：2011-02-01
申请号：US12846439
申请日：2010-07-29
申请人： Kenji Narumi , Kenichi Nishiuchi , Shigeaki Furukawa
发明人： Kenji Narumi , Kenichi Nishiuchi , Shigeaki Furukawa
IPC分类号： G11B7/00
CPC分类号： G11B7/0062 , G11B7/00456 , G11B7/00736 , G11B7/1267
摘要： The present invention provides an optical information recording apparatus and method capable of effectively determining appropriate recording parameters in a short time with favorable efficiency, when recording information onto an optical disk having different information recording conditions and information recording characteristics. An information recording condition or an information recording characteristic of an optical disk 1 is identified, and a recording pulse position is corrected at a correction accuracy according to the identifies information recording condition or information recording characteristic, such that a recording mark is formed in a predetermined position.
摘要翻译：本发明提供了一种光信息记录装置和方法，当将信息记录到具有不同信息记录条件和信息记录特性的光盘上时，可以在短时间内有效地确定适当的记录参数。识别光盘1的信息记录条件或信息记录特性，并且根据识别信息记录条件或信息记录特性以校正精度校正记录脉冲位置，使得记录标记形成为预定的位置。

7. 发明授权

US06584054B2 Optical recording method and optical recording device 有权
公开(公告)号：US06584054B2
公开(公告)日：2003-06-24
申请号：US10025664
申请日：2001-12-17
申请人： Shigeaki Furukawa , Kenichi Nishiuchi , Yuuichi Kamioka , Norifumi Oda
发明人： Shigeaki Furukawa , Kenichi Nishiuchi , Yuuichi Kamioka , Norifumi Oda
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/0055 , G11B20/10194
摘要： An optical recording device comprises: a basic pulse generator 60 including a starting-end pulse generation circuit 2, a burst gate generation circuit 4, and an end pulse generation circuit 6; a data-length detector 61 including a front mark detector 40, a front space detector 41, a recording mark detector 42, a back space detector 43 and a back mark detector 44; a timing controller 62 including a starting-end pulse selecting circuit 14, a starting-end starting position setting circuit 15, a starting-end pulse delaying circuit 19, an end pulse selecting circuit 21, an end starting position setting circuit 35 and an end pulse delaying circuit 25; a pulse synthesizer 63 including an AND gate 27 and an OR gate 36; and a laser driver 64 including an erasing current source 32, a recording current source 33, and a switch 34.

8. 发明授权

US07088656B2 Method for optically recording information and device for optically recording information by the same 失效
标题翻译：用于光学记录信息的方法和用于光学记录信息的装置
公开(公告)号：US07088656B2
公开(公告)日：2006-08-08
申请号：US11058806
申请日：2005-02-15
申请人： Kenji Narumi , Tetsuya Akiyama , Kenichi Nishiuchi , Shigeaki Furukawa
发明人： Kenji Narumi , Tetsuya Akiyama , Kenichi Nishiuchi , Shigeaki Furukawa
IPC分类号： G11B5/09
CPC分类号： G11B7/126 , G11B7/0045 , G11B11/1053 , G11B11/10595 , G11B19/04 , G11B20/10 , G11B20/1816 , G11B20/182 , G11B27/36 , G11B2220/216
摘要： A method by which, in an optical disk recording and reproducing device, the time required for a test recording performed prior to an actual information recording can be reduced according to characteristics of an optical disk. A random pattern signal is transmitted from a random pattern signal generating circuit 3 and recorded on a test track on an optical disk 1, and a bit error rate of a reproduction signal is measured. Only when a value of the bit error rate is not less than a fixed value, test pattern signals are transmitted from a test pattern signal generating circuit 4 and recorded. An edge timing of a reproduction signal is measured by an edge timing detecting circuit 13. Based on a result of the measurement, edge positions of a front-end pulse and a back-end pulse are corrected.
摘要翻译：在光盘记录和再现装置中，可以根据光盘的特性减少在实际信息记录之前执行的测试记录所需的时间的方法。从随机模式信号发生电路3发送随机模式信号并记录在光盘1上的测试轨道上，并测量再现信号的误码率。只有当误码率的值不小于固定值时，才从测试模式信号发生电路4发送测试模式信号并进行记录。通过边沿定时检测电路13测量再现信号的边缘定时。根据测量结果，校正前端脉冲和后端脉冲的边缘位置。

9. 发明申请

US20060139803A1 Multilayer information medium, reproduction method and reproduction device thereof 审中-公开
标题翻译：多层信息介质，再现方法和再现装置
公开(公告)号：US20060139803A1
公开(公告)日：2006-06-29
申请号：US10531387
申请日：2003-08-22
申请人： Shigeaki Furukawa , Naoyasu Miyagawa , Kenichi Nishiuchi
发明人： Shigeaki Furukawa , Naoyasu Miyagawa , Kenichi Nishiuchi
IPC分类号： G11B5/74
CPC分类号： G11B7/00736 , G11B7/005 , G11B7/24038 , G11B2007/0013
摘要： During reproduction of a multilayer recording medium including three or more information layers, a light beam is irradiated onto a target information layer. A reflected light from the information layer is mainly detected to generate an information signal RF1, while reflected lights from the other information layers than the target layer are detected to generate an information signal RF2. The signal RF2 is amplified by a gain which is adjusted based on a predetermined cross talk information. A difference between the information signal RF1 and the amplified cross talk signal RF2 is obtained to cancel a component of the cross talk signal in the information signal RF1 and generate a reproduction signal RF3 indicating information recorded in the target information layer to be reproduced.
摘要翻译：在包括三个或更多个信息层的多层记录介质的再现期间，将光束照射到目标信息层上。主要检测来自信息层的反射光以产生信息信号RF 1，同时检测来自其它信息层的反射光比目标层，以产生信息信号RF 2。信号RF 2被基于预定的串音信息调整的增益放大。获得信息信号RF 1和放大的串扰信号RF 2之间的差异以消除信息信号RF 1中的串扰信号的分量，并产生指示记录在目标信息层中的信息的再现信号RF 3 转载。

10. 发明授权

US06661749B1 Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus 有权
标题翻译：用于光学记录介质的基板，光学记录介质，母盘，母盘记录装置和信号发生装置
公开(公告)号：US06661749B1
公开(公告)日：2003-12-09
申请号：US09702204
申请日：2000-10-31
申请人： Kenichi Nishiuchi , Shigeaki Furukawa , Tetsuya Akiyama
发明人： Kenichi Nishiuchi , Shigeaki Furukawa , Tetsuya Akiyama
IPC分类号： G11B700
CPC分类号： G11B7/261 , G11B7/00718 , G11B7/00745 , G11B7/0079
摘要： A substrate for an optical recording medium, includes recording tracks formed in guide grooves on a disc; and an address section having an address pit sequence formed between the recording tracks in the guide grooves along an information reading direction of the recording tracks. The recording tracks in the guide grooves are divided into a prescribed number of zones. In each of the zones, the center of the address section corresponding to a recording track in the radially outermost or radially innermost guide groove is disposed so as to shift in a radial direction of the disc in relative relationship to the center of the recording track in the guide groove.
摘要翻译：一种用于光学记录介质的基片，包括形成在盘上的导槽中的记录道; 和地址部分，具有沿着记录轨道的信息读取方向形成在引导槽中的记录轨道之间的地址凹坑序列。引导槽中的记录轨道被划分成规定数量的区域。在每个区域中，与径向最外侧或径向最内侧的导向槽中的记录轨迹相对应的地址部的中心配置成与导向槽中的记录轨迹的中心相对地相对于盘的径向移动。

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