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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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公开(公告)号：US20100027403A1
公开(公告)日：2010-02-04
申请号：US12511566
申请日：2009-07-29
IPC分类号： G11B7/135
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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公开(公告)号：US20090168632A1
公开(公告)日：2009-07-02
申请号：US12336031
申请日：2008-12-16
申请人： Hirotaka Miyamoto , Kimihiro Saito , Goro Fujita
发明人： Hirotaka Miyamoto , Kimihiro Saito , Goro Fujita
IPC分类号： G11B7/135
CPC分类号： G11B7/00452 , G11B7/1378 , G11B2007/0013
摘要： An optical disk apparatus appropriately adjusts the optical paths of a reference light beam and information light beam in an optical path forming section of an optical pickup, condenses the reference light beam and information light beam using an objective lens, and performs position control of the objective lens in the focusing and tracking directions so as to focus the reference light beam onto a reference track in a target mark layer, thereby focusing the focal point of the information light beam condensed by the objective lens onto a target track TG in the target mark layer.
摘要翻译： 光盘装置适当地调整光学拾取器的光路形成部分中的参考光束和信息光束的光路，使用物镜聚集参考光束和信息光束，并执行目标的位置控制 以便将参考光束聚焦在目标标记层中的参考轨道上，从而将由物镜聚光的信息光的焦点聚焦到目标标记层中的目标轨道TG上 。
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公开(公告)号：US08107331B2
公开(公告)日：2012-01-31
申请号：US12336031
申请日：2008-12-16
申请人： Hirotaka Miyamoto , Kimihiro Saito , Goro Fujita
发明人： Hirotaka Miyamoto , Kimihiro Saito , Goro Fujita
IPC分类号： G11B7/00
CPC分类号： G11B7/00452 , G11B7/1378 , G11B2007/0013
摘要： An optical disk apparatus appropriately adjusts the optical paths of a reference light beam and information light beam in an optical path forming section of an optical pickup, condenses the reference light beam and information light beam using an objective lens, and performs position control of the objective lens in the focusing and tracking directions so as to focus the reference light beam onto a reference track in a target mark layer, thereby focusing the focal point of the information light beam condensed by the objective lens onto a target track TG in the target mark layer.
摘要翻译： 光盘装置适当地调整光学拾取器的光路形成部分中的参考光束和信息光束的光路，使用物镜聚集参考光束和信息光束，并执行目标的位置控制 以便将参考光束聚焦在目标标记层中的参考轨道上，从而将由物镜聚光的信息光的焦点聚焦到目标标记层中的目标轨道TG上 。
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5.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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6.发明申请公开(公告)号：US20080239922A1
公开(公告)日：2008-10-02
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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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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8.发明申请RECORDING APPARATUS, REPRODUCING APPARATUS, RECORDING METHOD, REPRODUCING METHOD, AND RECORDING MEDIUM 审中-公开记录装置，再现装置，记录方法，再现方法和记录介质公开(公告)号：US20090052312A1
公开(公告)日：2009-02-26
申请号：US12131494
申请日：2008-06-02
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G03H1/26 , G11B7/0938 , G11B7/1356 , G11B7/1365 , G11B7/1374 , G11B7/24038 , G11B7/24088
摘要： A recording apparatus for recording data on a recording medium having at least one recording layer, includes a loading unit and a recorder unit. On the loading unit, the recording medium is capable of being loaded. The recorder unit is configured to cause the at least one recording layer a physical change to collectively record a plurality of pieces of data on the at least one recording layer of the recording medium loaded on the loading unit, in a thickness direction of the at least one recording layer, such that the physical change of the at least one recording layer is capable of being detected at one time when the recording medium is reproduced.
摘要翻译： 一种用于在具有至少一个记录层的记录介质上记录数据的记录装置，包括装载单元和记录单元。 在装载单元上，记录介质能够被加载。 记录器单元被配置为使得至少一个记录层进行物理变化，以在至少一个记录层的厚度方向上集中地将多条数据片段记录在装载在装载单元上的记录介质的至少一个记录层上 一个记录层，使得至少一个记录层的物理变化能够在再现记录介质时一次被检测。
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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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10.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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