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公开(公告)号：US06524766B1
公开(公告)日：2003-02-25
申请号：US09650728
申请日：2000-08-30
IPC分类号： G11B724
CPC分类号： B82Y10/00 , G11B7/24 , G11B7/243 , G11B7/253 , G11B7/2534 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B2007/24306 , G11B2007/2432 , G11B2007/2571 , G11B2007/25713 , Y10S430/146
摘要： The optical disk medium permits an increase in recording density using a complex refractive index variation of an inorganic oxide film in a super-resolution medium using an inorganic oxide film. The reflectance of the disk increases due to the complex refractive index variation of the inorganic oxide film. Specifically, in the case where the inorganic oxide film is an oxide film comprising Co, a reflect addition film is provided. The effective spot diameter used for read-out is reduced, thereby increasing recording density. By using a material for which the complex refractive index varies sharply, the recording density can be approximately doubled.
摘要翻译： 光盘介质允许使用无机氧化物膜的超分辨率介质中的无机氧化物膜的复折射率变化来提高记录密度。 由于无机氧化物膜的复合折射率变化，盘的反射率增加。 具体地，在无机氧化物膜是包含Co的氧化膜的情况下，提供反射加成膜。 用于读出的有效光斑直径减小，从而增加记录密度。 通过使用复合折射率急剧变化的材料，记录密度可以大致加倍。
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公开(公告)号：US20050047309A1
公开(公告)日：2005-03-03
申请号：US10763274
申请日：2004-01-26
IPC分类号： B41M5/26 , G11B7/00 , G11B7/0045 , G11B7/09 , G11B7/125 , G11B7/135 , G11B7/14 , G11B7/20 , G11B7/24 , G11C13/04
CPC分类号： G11B7/14 , G11B7/0903 , G11B7/127 , G11B7/24038
摘要： An information recording apparatus includes a multilayer information recording medium having a first layer containing an electro-chromic material, an electrode layer applying a voltage to the first layer to color the first layer, a second layer containing an electro-chromic material, a unit for applying the voltage to the first layer, a first optical irradiating unit for irradiating a first optical spot onto the first layer, and a second optical irradiating unit for irradiating a second optical spot onto the second layer after irradiating the first optical spot onto the first layer.
摘要翻译： 一种信息记录装置，包括具有包含电铬材料的第一层的多层信息记录介质，向第一层施加电压以使第一层着色的电极层，含有电色材料的第二层， 向第一层施加电压，第一光学照射单元，用于将第一光点照射到第一层上;以及第二光学照射单元，用于在将第一光斑照射到第一层上之后将第二光斑照射到第二层上 。
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公开(公告)号：US07349319B2
公开(公告)日：2008-03-25
申请号：US10763274
申请日：2004-01-26
IPC分类号： G11B7/00
CPC分类号： G11B7/14 , G11B7/0903 , G11B7/127 , G11B7/24038
摘要： An information recording apparatus includes a multilayer information recording medium having a first layer containing an electro-chromic material, an electrode layer applying a voltage to the first layer to color the first layer, a second layer containing an electro-chromic material, a unit for applying the voltage to the first layer, a first optical irradiating unit for irradiating a first optical spot onto the first layer, and a second optical irradiating unit for irradiating a second optical spot onto the second layer after irradiating the first optical spot onto the first layer.
摘要翻译： 一种信息记录装置，包括具有包含电铬材料的第一层的多层信息记录介质，向第一层施加电压以使第一层着色的电极层，含有电色材料的第二层， 向第一层施加电压，第一光学照射单元，用于将第一光点照射到第一层上;以及第二光学照射单元，用于在将第一光斑照射到第一层上之后将第二光斑照射到第二层上 。
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4.发明授权Information recording apparatus, information recording medium and information recording medium 失效信息记录装置，信息记录介质和信息记录方法公开(公告)号：US07542396B2
公开(公告)日：2009-06-02
申请号：US11209648
申请日：2005-08-24
申请人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
发明人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/0938 , G11B7/127 , G11B2007/0009
摘要： To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof at least one of the thickness and refractive index changes continuously or in two or more steps immediately after emission from the light irradiation means, so that a difference is introduced into the optical path length of the two beams, and the focusing point of one beam is made to vary to coincide with a position in the recording layer used for playback or recording. Another light beam is used for servo. Converging of light during recording or read of a multilayer recording medium is performed with higher precision than in the prior art, so higher density, higher capacity recording/playback can be performed.
摘要翻译： 要实现稳定，高容量，高速录音。 在从光照射装置发射的两束光束中，使一束或两束光束通过光路可变构件，其中厚度和折射率中的至少一个连续地或者在从光照射装置发射之后立即改变两个或更多个步骤 ，从而在两个光束的光程长度上引入差异，并且使一个光束的聚焦点变化以与用于回放或记录的记录层中的位置一致。 另一光束用于伺服。 以比现有技术更高的精度执行多层记录介质的记录或读取期间的光的会聚，因此可以执行更高密度，更高容量的记录/重放。
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5.发明申请公开(公告)号：US20060227670A1
公开(公告)日：2006-10-12
申请号：US11209648
申请日：2005-08-24
申请人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
发明人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
IPC分类号： G11B11/00
CPC分类号： G11B7/1367 , G11B7/0938 , G11B7/127 , G11B2007/0009
摘要： To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof at least one of the thickness and refractive index changes continuously or in two or more steps immediately after emission from the light irradiation means, so that a difference is introduced into the optical path length of the two beams, and the focusing point of one beam is made to vary to coincide with a position in the recording layer used for playback or recording. Another light beam is used for servo. Converging of light during recording or read of a multilayer recording medium is performed with higher precision than in the prior art, so higher density, higher capacity recording/playback can be performed.
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公开(公告)号：US06922386B2
公开(公告)日：2005-07-26
申请号：US10713265
申请日：2003-11-17
IPC分类号： G11B7/0045 , G11B7/006 , G11B7/125 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1369 , G11B7/006 , G11B7/128 , G11B7/1353 , G11B7/1395
摘要： Light emitted from a laser is divided into two light waves so that the ratio of the power of one light wave to the power of the other will be appropriate. The resultant light waves are irradiated to the same track on a medium. The preceding spot is used for erasure, and modulated so that the same pattern as the one formed with a recording pulse will be formed. The high-power component of the modulated light of the erasing spot causes the temperature of a recording layer to be equal to or higher than the melting point. The medium-power component of the modulated light forms a crystallizing temperature area on the recording layer. A liquid crystal diffraction grating is used to divide power, and a power division ratio is variable and controllable.
摘要翻译： 从激光发射的光被分成两个光波，使得一个光波的功率与另一个光的功率的比率将是适当的。 所得到的光波照射到介质上的同一轨道上。 前一个点用于擦除，并被调制，使得将形成与记录脉冲形成的图案相同的图案。 擦除斑点的调制光的高功率分量导致记录层的温度等于或高于熔点。 调制光的中功率分量在记录层上形成结晶温度区域。 使用液晶衍射光栅来分配功率，功率分配比是可变的和可控的。
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公开(公告)号：US5615192A
公开(公告)日：1997-03-25
申请号：US319796
申请日：1994-10-07
IPC分类号： G11B5/00 , G11B5/02 , G11B7/12 , G11B7/135 , G11B7/14 , G11B9/00 , G11B11/00 , G11B11/105 , G11B13/00 , G11B20/06 , G11B20/10 , G11B27/30 , G11B7/00
CPC分类号： B82Y10/00 , G11B11/002 , G11B11/007 , G11B11/10536 , G11B11/10545 , G11B11/10576 , G11B13/00 , G11B20/06 , G11B20/10 , G11B27/3027 , G11B5/00 , G11B5/02 , G11B7/12 , G11B7/1384 , G11B7/14 , G11B9/14 , G11B20/14 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10S977/881 , Y10S977/932
摘要： A recording-reproducing apparatus can remarkably relax the reproduction tracking accuracy by use of a head wider than the track width. The carrier signal frequency assigned to a recording track is designated to a synthesized signal generator. In compliance with this designation, the synthesized signal generator generates a signal of the designated frequency. This carrier signal is amplitude-modulated by the baseband signal to be recorded in a mixer. The unrequired frequency components are removed from this modulation signal by a bandpass filter, and the resulting signal is recorded in a recording medium by a head. The recording medium and the head are in relative motion. In read mode, a track is specified by the carrier signal.
摘要翻译： 记录再现装置可以通过使用比轨道宽度更宽的头部显着地放松再现跟踪精度。 分配给记录磁道的载波信号频率被指定给合成信号发生器。 根据该指定，合成信号发生器产生指定频率的信号。 该载波信号由基带信号进行幅度调制，以记录在混频器中。 通过带通滤波器从该调制信号中去除非需要的频率分量，并将所得到的信号通过磁头记录在记录介质中。 记录介质和磁头相对运动。 在读取模式下，通过载波信号指定轨道。
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8.发明授权公开(公告)号：US06791934B2
公开(公告)日：2004-09-14
申请号：US10076663
申请日：2002-02-19
IPC分类号： G11B700
CPC分类号： G11B7/1378 , G11B7/093 , G11B7/0935 , G11B7/0943 , G11B7/13927
摘要： When it is intended to realize a lens having a large NA with one lens, an adjustment precision between both surfaces of the lens is very strict. Accordingly an objective lens having an NA of 0.8 or more was usually realized by two lenses. However, a working distance is small, and collision of the objective lens with a disc is apt to occur. A coma corrector for compensating coma caused by decentering of both surfaces in realizing the high NA lens with one lens is added. However, in this case, astigmatism occurs when the objective lens decenters from the coma corrector relatively accompanied with a tracking operation. The objective lens and the coma corrector are fixed to a mirror barrel so as to be unified with each other, and driven by a two-dimensional lens actuator. With such a constitution, decentering of the objective lens and the coma corrector does not occur, and hence astigmatism does not occur.
摘要翻译： 当想要实现具有一个透镜的具有大NA的透镜时，透镜的两个表面之间的调节精度非常严格。 因此，通常通过两个透镜实现NA为0.8以上的物镜。 然而，工作距离小，容易发生物镜与盘的碰撞。 添加了一个用于补偿由两个表面偏心造成的实现具有一个透镜的高NA透镜的昏迷校正器。 然而，在这种情况下，当物镜相对于跟踪操作相对于昏迷校正器偏离时，发生散光。 物镜和彗差校正器被固定到镜筒上，以便彼此一体化，并由二维透镜致动器驱动。 通过这样的结构，不会发生物镜和昏迷校正器的偏心，因此不发生散光。
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公开(公告)号：US06807133B2
公开(公告)日：2004-10-19
申请号：US09921142
申请日：2001-08-03
申请人： Tetsuo Ariyoshi , Mariko Umeda , Takeshi Shimano
发明人： Tetsuo Ariyoshi , Mariko Umeda , Takeshi Shimano
IPC分类号： G11B700
CPC分类号： G11B7/1353 , G11B7/0943 , G11B7/0948 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： To stably carry out recording and reproducing to and from a high density optical disk without using a double servo in the optical disk using a high NA objective lens. A detection of a spherical aberration and a detection of a coma aberration in a radial direction are simultaneously performed, and the coma aberration generated with the offset of an objective lens 109 is corrected in real time, thus enlarging an allowable offset amount of the objective lens. In order to simultaneously detect the spherical aberration and the coma aberration, focal shift and tracking shift signals in an inside region and outside region of reflected light flux are detected respectively, and the differential signals are set as spherical aberration and coma aberration signals.
摘要翻译： 为了在不使用高NA物镜的光盘中不使用双重伺服的情况下稳定地向高密度光盘执行记录和再现。 同时执行球面像差的检测和径向的彗形像差的检测，并且实时地修正由物镜109的偏移产生的彗形像差，从而扩大物镜的容许偏移量 。 为了同时检测球面像差和彗形像差，分别检测反射光束的内部区域和外部区域中的焦点偏移和跟踪偏移信号，并将差分信号设置为球面像差和彗形像差信号。
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10.发明授权公开(公告)号：US07123565B2
公开(公告)日：2006-10-17
申请号：US10368415
申请日：2003-02-20
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/08505 , G11B7/0901 , G11B7/0908 , G11B7/095 , G11B7/131 , G11B7/1365 , G11B2007/0013
摘要： When reproducing a multilayer optical disk using a high-numerical-aperture objective, the period of time required before the disk is reproduced is reduced by discriminating recording layers. A spherical aberration signal is detected as a differential signal between focus position fluctuation signals respectively in a central section and in a peripheral section of a reproduced flux of light. A recording layer is discriminated using a quantity of correction of spherical aberration at a zero-crossing point of a level or a spherical aberration signal associated with the differential signal. After adding the spherical aberration for the correction of the discriminated layer, residual spherical aberration is corrected by feedback control using a residual spherical aberration signal.
摘要翻译： 当使用高数值孔径物镜再现多层光盘时，通过识别记录层来减少盘再生之前所需的时间。 球面像差信号被分别作为中心部分的焦点位置波动信号与再生光束的周边部分之间的差分信号进行检测。 使用在与差分信号相关联的电平或球面像差信号的过零点处的球面像差校正量来区分记录层。 在添加用于鉴别层的校正的球面像差之后，通过使用残余球面像差信号的反馈控制来校正残留球差。
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