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公开(公告)号：US20090262633A1
公开(公告)日：2009-10-22
申请号：US12423357
申请日：2009-04-14
申请人： Kimihiro Saito , Kunihiko Hayashi
发明人： Kimihiro Saito , Kunihiko Hayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/00451 , G11B7/00452 , G11B7/005 , G11B7/0908 , G11B7/0938 , G11B7/131 , G11B7/1381 , G11B2007/0013
摘要： When an optical disc apparatus reproduces information from an optical disc, it converges a reading light beam emitted from an LED to substantially collimated light and projects it to the optical disc to cause it to be reflected by reflection surface thereof so as to make it become a reading reflected light beam. Then, the apparatus converges the reading reflected light beam by a mark layer selection lens, detects the reading reflected light beam passing through the target position by a detection region located at the confocal point of the target position and generates a detection signal. Subsequently, the apparatus recognizes the presence or absence of a recording mark based on the detection signal to reproduce the information. Thus, the apparatus can detect the state of the reading reflected light beam observed when it passes the target position and can recognize the presence or absence of a recording mark.
摘要翻译： 当光盘装置从光盘再现信息时，它将从LED发射的读取光束会聚到基本上准直的光并将其投射到光盘上，以使其被其反射表面反射，从而使其成为 读取反射光束。 然后，设备通过标记层选择透镜会聚读取反射光束，通过位于目标位置的共焦点处的检测区域检测通过目标位置的读取反射光束，并产生检测信号。 随后，该装置基于检测信号识别记录标记的存在或不存在，以再现该信息。 因此，该装置可以检测在通过目标位置时观察到的读取反射光束的状态，并且可以识别记录标记的存在或不存在。
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公开(公告)号：US20090245065A1
公开(公告)日：2009-10-01
申请号：US12362927
申请日：2009-01-30
CPC分类号： G11B7/0938 , G11B7/00452 , G11B7/0065 , G11B7/08511 , G11B7/1275 , G11B7/1378 , G11B7/24038 , G11B7/24044 , G11B2007/0009
摘要： A focus control section first performs a reference focus control process in which a reference optical beam is focused on a reference layer of an optical disc according to the result of receiving a reference reflection optical beam, and then switches from the reference focus control process to an information focus control process in which an information optical beam is focused on a mark layer of the optical disc according to the result of receiving an information reflection optical beam.
摘要翻译： 焦点控制部分首先根据接收参考反射光束的结果执行参考光束聚焦在光盘的参考层上的参考聚焦控制处理，然后从参考聚焦控制处理切换到 信息聚焦控制处理，其中根据接收信息反射光束的结果，信息光束聚焦在光盘的标记层上。
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3.发明授权公开(公告)号：US08248900B2
公开(公告)日：2012-08-21
申请号：US12441147
申请日：2007-09-13
申请人： Kimihiro Saito , Toshihiro Horigome , Takao Kondo , Kunihiko Hayashi , Seiji Kobayashi , Takashi Iwamura , Sakuya Tamada
发明人： Kimihiro Saito , Toshihiro Horigome , Takao Kondo , Kunihiko Hayashi , Seiji Kobayashi , Takashi Iwamura , Sakuya Tamada
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/0065 , G11B7/083 , G11B7/0938 , G11B7/24044
摘要： An optical disc apparatus can highly accurately record a hologram representing information on or reproduce such a hologram from an optical disc. When recording information on an optical disc 100, the optical disc apparatus controls the position of an objective lens OL1 according to the outcome of detection of a red reflected light beam Lr2 so as to make the focus Fr thereof follow a target track and it also makes the focus Fb1 of a blue light beam Lb1 agree with a target mark position by the objective lens OL1 and also the focus Fb2 agree with the target mark position by controlling the position of another objective lens OL2 according to the outcome of detection of the blue light beam Lb1 by way of the objective lenses OL1 and OL2 so as to make the focus Fb1 of the blue light beam Lb1 and the focus Fb2 of the blue light beam Lb2 agree with the target mark position and the blue light beam Lb1 and the blue light beam Lb2 interfere with each other. Thus, as a result, the optical disc apparatus can record a recording mark RM at the target mark position.
摘要翻译： 光盘装置可高精度地记录表示来自光盘的关于或再现这样的全息图的信息的全息图。 当在光盘100上记录信息时，光盘装置根据红色反射光束Lr2的检测结果来控制物镜OL1的位置，以使其焦点Fr跟随目标轨迹，并且还使得 蓝光束Lb1的焦点Fb1与物镜OL1的目标标记位置一致，并且通过根据蓝光的检测结果控制另一个物镜OL2的位置，焦点Fb2也与目标标记位置一致 通过物镜OL1和OL2使光束Lb1与蓝色光束Lb2的蓝色光束Lb1和焦点Fb2的焦点Fb1与目标标记位置和蓝色光束Lb1和蓝色光线一致 光束Lb2相互干扰。 因此，结果，光盘装置可以将记录标记RM记录在目标标记位置。
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公开(公告)号：US07995439B2
公开(公告)日：2011-08-09
申请号：US12423357
申请日：2009-04-14
申请人： Kimihiro Saito , Kunihiko Hayashi
发明人： Kimihiro Saito , Kunihiko Hayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/00451 , G11B7/00452 , G11B7/005 , G11B7/0908 , G11B7/0938 , G11B7/131 , G11B7/1381 , G11B2007/0013
摘要： When an optical disc apparatus reproduces information from an optical disc, it converges a reading light beam emitted from an LED to substantially collimated light and projects it to the optical disc to cause it to be reflected by reflection surface thereof so as to make it become a reading reflected light beam. Then, the apparatus converges the reading reflected light beam by a mark layer selection lens, detects the reading reflected light beam passing through the target position by a detection region located at the confocal point of the target position and generates a detection signal. Subsequently, the apparatus recognizes the presence or absence of a recording mark based on the detection signal to reproduce the information. Thus, the apparatus can detect the state of the reading reflected light beam observed when it passes the target position and can recognize the presence or absence of a recording mark.
摘要翻译： 当光盘装置从光盘再现信息时，它将从LED发射的读取光束会聚到基本上准直的光并将其投射到光盘上，以使其被其反射表面反射，从而使其成为 读取反射光束。 然后，设备通过标记层选择透镜会聚读取反射光束，通过位于目标位置的共焦点处的检测区域检测通过目标位置的读取反射光束，并产生检测信号。 随后，该装置基于检测信号识别记录标记的存在或不存在，以再现该信息。 因此，该装置可以检测在通过目标位置时观察到的读取反射光束的状态，并且可以识别记录标记的存在或不存在。
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公开(公告)号：US20100195453A1
公开(公告)日：2010-08-05
申请号：US12452672
申请日：2009-05-25
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/00452 , G11B7/0065 , G11B7/00781 , G11B7/08564 , G11B7/0938 , G11B7/1275 , G11B7/24038 , G11B7/24044 , G11B2007/13727
摘要： Disclosed is an optical disc device that is able to increase accuracy in reproducing information from an optical disc. The optical disc device 10 calculates a focus error signal SFE2 and a sum signal SS1 while reciprocating an objective lens 21 in a focus direction until a distance between a focal point FS and a focal point FM1 becomes close to the depth d of a target position PG at the time of a pull-in operation, and when a trigger signal ST1 generated on the basis of the sum signal SS1 is at low level, starts focus control on the basis of the focus error signal SFE2. Therefore, focus control can start in a state where the focus error signal SFE2 curves in an S shape with sufficient amplitude.
摘要翻译： 公开了能够提高从光盘再现信息的精度的光盘装置。 光盘装置10计算聚焦误差信号SFE2和和信号SS1，同时使物镜21在聚焦方向上往复运动，直到焦点FS与焦点FM1之间的距离变得接近目标位置PG的深度d 并且当基于和信号SS1生成的触发信号ST1处于低电平时，基于聚焦误差信号SFE2开始聚焦控制。 因此，聚焦误差信号SFE2在具有足够幅度的S形状下弯曲的状态下可以开始聚焦控制。
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公开(公告)号：US08345521B2
公开(公告)日：2013-01-01
申请号：US12511566
申请日：2009-07-29
IPC分类号： G11B15/04
CPC分类号： G11B7/08511 , G11B7/00452 , G11B7/083
摘要： An optical disc apparatus includes a light separator configured to separate a light beam emitted from a light source into a main beam and a sub-beam, an objective lens configured to, when the light beam is condensed and irradiated to an optical disc having a uniform recording layer in which a track is formed by record marks, irradiate at least part of the sub-beam to an area where the main beam is not irradiated in a radial direction which is defined as a direction of radius of the optical disc, and a signal generating unit configured to generate a mark layer distance signal, representing a distance between a focus of the light beam and a mark layer to which the track belongs, based on a return light beam resulting from at least one of the main beam and the sub-beam, which has been irradiated to the track.
摘要翻译： 光盘装置包括：光分离器，被配置为将从光源发射的光束分离成主光束和子光束;物镜，被配置为当光束被冷凝并照射到具有均匀的光盘时 通过记录标记形成轨道的记录层，将所述子光束的至少一部分照射到被定义为所述光盘的半径方向的径向的所述主光束不被照射的区域，以及 信号生成单元，被配置为基于从所述主光束和所述子像素中的至少一个产生的返回光来生成表示所述光束的焦点与所述轨道所属的标记层之间的距离的标记层距离信号 光束已被照射到轨道上。
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7.发明授权公开(公告)号：US08040764B2
公开(公告)日：2011-10-18
申请号：US12472667
申请日：2009-05-27
IPC分类号： G11B7/00
CPC分类号： G11B7/08523 , G11B7/00452 , G11B7/0065 , G11B7/083 , G11B7/0901 , G11B7/0908 , G11B7/0938 , G11B7/0941 , G11B7/1378 , G11B7/13925 , G11B2007/0009
摘要： An optical disc apparatus includes an objective lens that converges a light beam emitted from a light source and irradiates an optical disc having recording marks formed in a uniform recording layer with it, a detection signal generation section that receives a return light beam from the recording mark and generates a detection signal, a servo control signal generation section that generates a servo control signal representing relative displacement between the recording mark and a focus of the light beam from the detection signal and a servo signal correction section that generates a correction servo control signal by connecting peaks or neighborhoods of the peaks of servo control signals, the peaks being produced according to the recording marks.
摘要翻译： 一种光盘装置，包括：会聚从光源射出的光束的物镜，照射具有形成在均匀记录层中的记录标记的光盘;检测信号生成部，其从记录标记接收返回光束; 并产生检测信号;伺服控制信号生成部，其根据检测信号生成表示记录标记与光束焦点之间的相对位移的伺服控制信号;以及伺服信号校正部，其通过以下步骤生成校正伺服控制信号 连接伺服控制信号的峰值的峰值或邻域，根据记录标记产生峰值。
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公开(公告)号：US07978569B2
公开(公告)日：2011-07-12
申请号：US12362927
申请日：2009-01-30
IPC分类号： G11B7/00
CPC分类号： G11B7/0938 , G11B7/00452 , G11B7/0065 , G11B7/08511 , G11B7/1275 , G11B7/1378 , G11B7/24038 , G11B7/24044 , G11B2007/0009
摘要： A focus control section first performs a reference focus control process in which a reference optical beam is focused on a reference layer of an optical disc according to the result of receiving a reference reflection optical beam, and then switches from the reference focus control process to an information focus control process in which an information optical beam is focused on a mark layer of the optical disc according to the result of receiving an information reflection optical beam.
摘要翻译： 焦点控制部分首先根据接收参考反射光束的结果执行参考光束聚焦在光盘的参考层上的参考聚焦控制处理，然后从参考聚焦控制处理切换到 信息聚焦控制处理，其中根据接收信息反射光束的结果，信息光束聚焦在光盘的标记层上。
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9.发明申请公开(公告)号：US20090296542A1
公开(公告)日：2009-12-03
申请号：US12472667
申请日：2009-05-27
IPC分类号： G11B7/00
CPC分类号： G11B7/08523 , G11B7/00452 , G11B7/0065 , G11B7/083 , G11B7/0901 , G11B7/0908 , G11B7/0938 , G11B7/0941 , G11B7/1378 , G11B7/13925 , G11B2007/0009
摘要： An optical disc apparatus includes an objective lens that converges a light beam emitted from a light source and irradiates an optical disc having recording marks formed in a uniform recording layer with it, a detection signal generation section that receives a return light beam from the recording mark and generates a detection signal, a servo control signal generation section that generates a servo control signal representing relative displacement between the recording mark and a focus of the light beam from the detection signal and a servo signal correction section that generates a correction servo control signal by connecting peaks or neighborhoods of the peaks of servo control signals, the peaks being produced according to the recording marks.
摘要翻译： 一种光盘装置，包括：会聚从光源射出的光束的物镜，照射具有形成在均匀记录层中的记录标记的光盘;检测信号生成部，其从记录标记接收返回光束; 并产生检测信号;伺服控制信号生成部，其根据检测信号生成表示记录标记与光束焦点之间的相对位移的伺服控制信号;以及伺服信号校正部，其通过以下步骤生成校正伺服控制信号 连接伺服控制信号的峰值的峰值或邻域，根据记录标记产生峰值。
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10.发明授权公开(公告)号：US07944794B2
公开(公告)日：2011-05-17
申请号：US12038201
申请日：2008-02-27
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/1275 , G11B7/1369 , G11B7/1378 , G11B7/14 , G11B2007/0013
摘要： An optical disc apparatus that records recording marks in a plurality of mark layers by irradiating predetermined light onto a disc-like volume type recording medium on the basis of information to be recorded is disclosed. The apparatus includes: a first focus position adjusting means for adjusting the position of a focus on which a first light beam focuses within the volume type recording medium, in the direction of an optical axis of the first light beam; a second focus position adjusting means for adjusting the position of a focus on which a second light beam focuses within the volume type recording medium, in the direction of an optical axis of the second light beam; a focus control means for controlling the first focus position adjusting means and the second focus position adjusting means; and a recording control means for forming the recording marks at the positions of respective focuses.
摘要翻译： 公开了一种光盘装置，其通过基于要记录的信息将预定的光照射到盘状体积型记录介质上而将记录标记记录在多个标记层中。 该装置包括：第一焦点位置调整装置，用于在第一光束的光轴方向上调节第一光束在该体积型记录介质内聚焦的焦点的位置; 第二焦点位置调整装置，用于在第二光束的光轴方向上调节第二光束在该体积型记录介质内聚焦的焦点的位置; 用于控制第一聚焦位置调节装置和第二聚焦位置调节装置的聚焦控制装置; 以及用于在各个焦点的位置形成记录标记的记录控制装置。
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