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1.发明授权Optical information apparatus employing two different tracking error signals based on regions on information medium 失效光信息装置采用基于信息介质上的区域的两种不同的跟踪误差信号
公开(公告)号：US06044049A
公开(公告)日：2000-03-28
申请号：US951140
申请日：1997-10-15
CPC分类号： G11B19/12 , G11B7/08505 , G11B7/0901 , G11B7/00718
摘要： An optical information apparatus for performing at least one of a reproduction operation and a recording operation for an information medium by radiating a light beam on the information medium is provided, wherein the information medium has a first region, including a first track having information recorded thereon in the form of convex and concave pits, and a second region, including a second track formed in the form of convex and concave guide grooves. The apparatus includes: first tracking error detection component for detecting an error in position between the light beam and the first track in the first region; second tracking error detection component for detecting an error in position between the light beam and the second track in the second region; tracking control component for performing tracking control for locating the light beam on a predetermined track; determination component for determining whether the light beam is located in the first region or the second region; and switching component for selecting either one of an output signal of the first tracking error detection component or an output signal of the second tracking error detection component based on a result of determination by the determination component, and sending the selected output signal to the tracking control component.
摘要翻译： 提供了一种用于通过在信息介质上照射光束来进行信息介质的再现操作和记录操作中的至少一个的光学信息设备，其中信息介质具有第一区域，其包括具有记录在其上的信息的第一轨道 呈凹凸形状的第二区域，以及第二区域，该第二区域包括以凸形和凹形引导槽形式形成的第二轨道。 该装置包括：第一跟踪误差检测部件，用于检测第一区域中的光束与第一轨道之间的位置误差; 第二跟踪误差检测部件，用于检测第二区域中的光束与第二光道之间的位置误差; 跟踪控制部件，用于执行用于将光束定位在预定轨道上的跟踪控制; 确定部件，用于确定光束是否位于第一区域或第二区域中; 以及用于基于所述确定部件的确定结果来选择所述第一跟踪误差检测部件的输出信号中的任一个或所述第二跟踪误差检测部件的输出信号的开关部件，以及将所选择的输出信号发送到所述跟踪控制 零件。
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公开(公告)号：US07539089B2
公开(公告)日：2009-05-26
申请号：US11736763
申请日：2007-04-18
申请人： Yuuichi Kuze , Kenji Fujiune , Takashi Kishimoto , Shin-ichi Yamada , Katsuya Watanabe , Akihiro Yasuda , Shin-ichi Kadowaki , Kousei Sano
发明人： Yuuichi Kuze , Kenji Fujiune , Takashi Kishimoto , Shin-ichi Yamada , Katsuya Watanabe , Akihiro Yasuda , Shin-ichi Kadowaki , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/08511 , G11B7/0908 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/1369 , G11B7/1381 , G11B7/13927 , G11B2007/0006 , G11B2007/0013 , G11B2007/13727
摘要： An optical disc device of the present invention includes spherical aberration changing means for changing spherical aberration occurring on a converging position of a light beam converged by a lens, an actuator for moving the spherical aberration changing means in a relatively precise manner, and an actuator for moving the spherical aberration changing means in a relatively rough manner. The optical disc device drives a second actuator and a third actuator based on a signal of spherical aberration detecting means and performs control so that spherical aberration is almost 0. The third actuator moves the spherical aberration changing means based on a direct current component included in a signal of the spherical aberration detecting means, and the second actuator moves the spherical aberration changing means based on an alternating current component included in the signal of the spherical aberration detecting means.
摘要翻译： 本发明的光盘装置包括球面像差改变装置，用于改变在由透镜会聚的光束的会聚位置处产生的球面像差，用于相对精确地移动球面像差改变装置的致动器和用于 以相对粗糙的方式移动球面像差改变装置。 光盘装置基于球面像差检测装置的信号驱动第二致动器和第三致动器，并执行控制，使得球面像差几乎为0.第三致动器基于包括在球面像差检测装置中的直流分量来移动球面像差改变装置 信号，并且第二致动器基于球面像差检测装置的信号中包括的交流分量来移动球面像差改变装置。
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3.发明授权Focusing control apparatus using dynamic target value in relation to land/groove 失效使用相对于陆/沟的动态目标值对焦控制装置
公开(公告)号：US5732051A
公开(公告)日：1998-03-24
申请号：US413489
申请日：1995-03-30
申请人： Hiroyuki Yamaguchi , Mitsuro Moriya , Osamu Yamaguchi , Shin-ichi Yamada , Toshiyuki Kinou , Yoshihiro Kanda
发明人： Hiroyuki Yamaguchi , Mitsuro Moriya , Osamu Yamaguchi , Shin-ichi Yamada , Toshiyuki Kinou , Yoshihiro Kanda
CPC分类号： G11B7/00718 , G11B7/0908
摘要： A focusing control apparatus is provided for controlling focusing of a light beam on a recording medium. The apparatus includes a control mechanism for maintaining the focusing state of the light beam on the recording medium by moving a focus mechanism based on a comparison between an output signal indicative of the focusing state and a target value. The apparatus further includes a target value setting circuit for setting the target value at a first level when the light beam is irradiated on the land track portions of the recording medium; and for setting the target value at a second level when the light beam is irradiated on the groove track portions.
摘要翻译： 提供了一种聚焦控制装置，用于控制光束在记录介质上的聚焦。 该装置包括控制机构，用于通过基于指示聚焦状态的输出信号与目标值之间的比较来移动聚焦机构来保持光束在记录介质上的聚焦状态。 该装置还包括目标值设置电路，用于当光束照射在记录介质的脊迹部分上时，将目标值设置在第一水平; 并且当光束照射在凹槽轨道部分上时将目标值设置在第二水平。
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公开(公告)号：US07283435B2
公开(公告)日：2007-10-16
申请号：US10481206
申请日：2002-07-04
申请人： Yuuichi Kuze , Kenji Fujiune , Takashi Kishimoto , Shin-ichi Yamada , Katsuya Watanabe , Akihiro Yasuda , Shin-ichi Kadowaki , Kousei Sano
发明人： Yuuichi Kuze , Kenji Fujiune , Takashi Kishimoto , Shin-ichi Yamada , Katsuya Watanabe , Akihiro Yasuda , Shin-ichi Kadowaki , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/08511 , G11B7/0908 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/1369 , G11B7/1381 , G11B7/13927 , G11B2007/0006 , G11B2007/0013 , G11B2007/13727
摘要： An optical disc device of the present invention includes spherical aberration changing means for changing spherical aberration occurring on a converging position of a light beam converged by a lens, an actuator for moving the spherical aberration changing means in a relatively precise manner, and an actuator for moving the spherical aberration changing means in a relatively rough manner. The optical disc device drives a second actuator and a third actuator based on a signal of spherical aberration detecting means and performs control so that spherical aberration is almost 0. The third actuator moves the spherical aberration changing means based on a direct current component included in a signal of the spherical aberration detecting means, and the second actuator moves the spherical aberration changing means based on an alternating current component included in the signal of the spherical aberration detecting means.
摘要翻译： 本发明的光盘装置包括球面像差改变装置，用于改变在由透镜会聚的光束的会聚位置处产生的球面像差，用于相对精确地移动球面像差改变装置的致动器和用于 以相对粗糙的方式移动球面像差改变装置。 光盘装置基于球面像差检测装置的信号驱动第二致动器和第三致动器，并执行控制，使得球面像差几乎为0.第三致动器基于包括在球面像差检测装置中的直流分量来移动球面像差改变装置 信号，并且第二致动器基于球面像差检测装置的信号中包括的交流分量来移动球面像差改变装置。
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5.发明申请Optical disk device, loop gain setting method, and loop gain setting program 失效光盘设备，环路增益设置方法和环路增益设置程序公开(公告)号：US20050237879A1
公开(公告)日：2005-10-27
申请号：US11103508
申请日：2005-04-12
申请人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
发明人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
CPC分类号： G11B7/0941 , G11B7/094
摘要： An optical disk device is disclosed that includes loop gain adjustment means for finding the first tracking loop gain of a first region, and loop gain estimation means for estimating the second loop gain of a second region on the basis of the loop gain of the first region. Accordingly, it is possible to set the optimal tracking control loop gain for all regions. As a side benefit, good tracking control stability can be ensured regardless of the region, which improves the reliability of reproduction and recording.
摘要翻译： 公开了一种光盘装置，其包括用于求出第一区域的第一跟踪环路增益的环路增益调整装置，以及用于基于第一区域的环路增益来估计第二区域的第二环路增益的环路增益估计装置 。 因此，可以设定所有区域的最佳跟踪控制环路增益。 作为副作用，可以确保良好的跟踪控制稳定性，而不管区域如何，这提高了再现和记录的可靠性。
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6.发明授权Optical disk device, loop gain setting method, and loop gain setting program 失效光盘设备，环路增益设置方法和环路增益设置程序公开(公告)号：US07719931B2
公开(公告)日：2010-05-18
申请号：US11103508
申请日：2005-04-12
申请人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
发明人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
CPC分类号： G11B7/0941 , G11B7/094
摘要： An optical disk device is disclosed that includes loop gain adjustment means for finding the first tracking loop gain of a first region, and loop gain estimation means for estimating the second loop gain of a second region on the basis of the loop gain of the first region. Accordingly, it is possible to set the optimal tracking control loop gain for all regions. As a side benefit, good tracking control stability can be ensured regardless of the region, which improves the reliability of reproduction and recording.
摘要翻译： 公开了一种光盘装置，其包括用于求出第一区域的第一跟踪环路增益的环路增益调整装置，以及用于基于第一区域的环路增益来估计第二区域的第二环路增益的环路增益估计装置 。 因此，可以设定所有区域的最佳跟踪控制环路增益。 作为副作用，可以确保良好的跟踪控制稳定性，而不管区域如何，这提高了再现和记录的可靠性。
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7.发明授权Optical disc drive which uses a train of pulses to shift the focus of a focusing section 有权使用一串脉冲来移动聚焦部分的焦点的光盘驱动器公开(公告)号：US07440362B2
公开(公告)日：2008-10-21
申请号：US10722875
申请日：2003-11-26
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/08529 , G11B2007/0013
摘要： An optical disc drive includes: a light source; a focusing section; a focus shifting section for shifting the focal point of light by changing the position of the focusing section perpendicularly to a data storage layer of a given optical disc in accordance with a control signal; a light receiving section for receiving, at multiple areas, the light reflected from the data storage layer and generating light quantity signals; a signal generating section for generating a focus error signal based on the light quantity signals; and a control section for generating the control signal responsive to the focus error signal such that the focal point is transferred to a focus controllable range. The control section generates the control signal such that the focal point is decelerated at a first acceleration and then at a second acceleration. The absolute value of the second acceleration is smaller than that of the first acceleration.
摘要翻译： 光盘驱动器包括：光源; 聚焦部分; 聚焦移动部分，用于通过根据控制信号改变聚焦部分的位置垂直于给定光盘的数据存储层来移动光焦点; 光接收部分，用于在多个区域接收从数据存储层反射的光并产生光量信号; 信号产生部分，用于基于光量信号产生聚焦误差信号; 以及控制部分，用于响应于聚焦误差信号产生控制信号，使得焦点被转移到聚焦可控范围。 控制部生成控制信号，使得焦点以第一加速度然后以第二加速度减速。 第二加速度的绝对值小于第一加速度的绝对值。
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公开(公告)号：US07257053B2
公开(公告)日：2007-08-14
申请号：US10475473
申请日：2002-04-15
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/0946 , G11B7/24082
摘要： An optical disk apparatus having a high reliability by evading collision between a condensing lens and an optical disk regardless whether the focus control is in the operative state or in the inoperative state, thereby preventing damage to the condensing lens and the optical disk. When the focus control is in the inoperative state, by using a reflection light amount from the optical disk (1), it is ascertained that the focus of the light beam is in the vicinity of the information surface and the condensing lens (15) is driven to be apart from the optical disk (1).
摘要翻译： 通过避免聚光透镜和光盘之间的碰撞而具有高可靠性的光盘装置，无论聚焦控制是处于工作状态还是处于非工作状态，从而防止会聚透镜和光盘的损坏。 当聚焦控制处于非工作状态时，通过使用来自光盘（1）的反射光量，确定光束的焦点在信息表面附近，聚焦透镜（15）为 被驱动离开光盘（1）。
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公开(公告)号：US07307933B2
公开(公告)日：2007-12-11
申请号：US10499226
申请日：2003-01-20
申请人： Kenji Fujiune , Katsuya Watanabe , Shin-ichi Yamada , Yuuichi Kuze , Kenji Kondo
发明人： Kenji Fujiune , Katsuya Watanabe , Shin-ichi Yamada , Yuuichi Kuze , Kenji Kondo
CPC分类号： G11B19/127 , G11B7/0945 , G11B7/1267 , G11B7/13925 , G11B2007/13727
摘要： An optical disc drive according to the present invention reads and/or writes data from/on an optical disc having at least one information layer with a light beam and includes: a spherical aberration detecting section for generating a spherical aberration signal representing a spherical aberration produced at a focal point of the light beam on the information layer of the disc; a spherical aberration changing section for changing the spherical aberration; a spherical aberration regulating section for generating an aberration correction signal to correct the spherical aberration by driving the changing section; and means for detecting a value of the aberration correction signal that minimizes the spherical aberration when the focal point of the light beam is located on the information layer of the disc and for detecting the depth of the information layer, which corresponds to a distance from the information layer on which the focal point of the light beam is located to the surface of the disc, based on the value.
摘要翻译： 根据本发明的光盘驱动器从具有至少一个具有光束的信息层的光盘上读出数据，并且包括：球面像差检测部分，用于产生表示产生的球面像差的球面像差信号 在盘的信息层上的光束的焦点处; 用于改变球面像差的球面像差变化部分; 球面像差调节部分，用于通过驱动所述变化部分产生像差校正信号以校正球面像差; 以及用于检测当光束的焦点位于盘的信息层上并用于检测信息层的深度时使球面像差最小化的像差校正信号的值的装置，其对应于距离 信息层，光束的焦点位于光盘的表面上，基于该值。
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公开(公告)号：US20070258337A1
公开(公告)日：2007-11-08
申请号：US11825004
申请日：2007-07-03
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/0946 , G11B7/24082
摘要： An optical disk apparatus having a high reliability by evading collision between a condensing lens and an optical disk regardless whether the focus control is in the operative state or in the inoperative state, thereby preventing damage to the condensing lens and the optical disk. When the focus control is in the inoperative state, by using a reflection light amount from the optical disk (1), it is ascertained that the focus of the light beam is in the vicinity of the information surface and the condensing lens (15) is driven to be apart from the optical disk (1).
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