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1.发明授权Optical disk device, loop gain setting method, and loop gain setting program 有权一种光盘装置，方法，用于设置用于设定的环路增益的环路增益和程序
公开(公告)号：EP1589528B1
公开(公告)日：2007-11-21
申请号：EP05007221.4
申请日：2005-04-01
IPC分类号： G11B7/09
CPC分类号： G11B7/0941 , G11B7/094
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2.发明公开Optical disk device, loop gain setting method, and loop gain setting program 有权一种光盘装置，方法，用于设置用于设定的环路增益的环路增益和程序
公开(公告)号：EP1589528A3
公开(公告)日：2006-07-05
申请号：EP05007221.4
申请日：2005-04-01
IPC分类号： G11B7/09
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.
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3.发明公开Optical disk device, loop gain setting method, and loop gain setting program 有权一种光盘装置，方法，用于设置用于设定的环路增益的环路增益和程序
公开(公告)号：EP1589528A2
公开(公告)日：2005-10-26
申请号：EP05007221.4
申请日：2005-04-01
IPC分类号： G11B7/09
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： 一种光盘装置，光盘游离缺失确实包括环增益调节装置，用于发现的第一区域的所述第一跟踪环路增益，环路增益推定装置，用于将第一区域的环路增益的基础上估计的第二区域的第二环路增益 ， 因此，能够设定为所有区域最优跟踪控制环路增益。 作为附带好处，良好的跟踪控制的稳定性可不管区域，从而提高了再现和记录的可靠性的确保。
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公开(公告)号：EP0973155A3
公开(公告)日：2001-12-12
申请号：EP99113652.4
申请日：1999-07-14
CPC分类号： G11B27/19 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/0938 , G11B7/24085 , G11B27/3027
摘要： An optical disk includes tracks and grooves, the grooves being formed with a pitch equal to or greater than about λ/NA. A first array of pits is provided at a position which is shifted by a predetermined amount with respect to each track in one of two directions substantially perpendicular to the tracks, the first array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of a pitch of the grooves taking a value within a range from about 0 to about λ/NA. A second array of pits is provided at a position which is shifted by a predetermined amount with respect to the track in the other one of the two directions substantially perpendicular to the tracks, the second array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of the pitch of the grooves taking a value within the range from about 0 to about λ/NA. λ is a wavelength of a light beam which is radiated on the optical disk, and NA is a numerical aperture of a lens.
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公开(公告)号：EP1426933A3
公开(公告)日：2007-03-21
申请号：EP03027342.9
申请日：2003-11-26
IPC分类号： G11B7/085
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.
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6.发明公开An optical disc apparatus, a method for adjusting focus position, and a semiconductor integrated circuit 审中-公开一种光盘装置，一种用于调整焦点位置和半导体集成电路
公开(公告)号：EP1542212A2
公开(公告)日：2005-06-15
申请号：EP04029019.9
申请日：2004-12-08
发明人： Shimamoto, Takeshi , Yamada, Shin-ichi , Kadowaki, Shin-ichi , Kuze, Yuuichi , Kondo, Kenji , Watanabe, Katsuya
IPC分类号： G11B7/085
CPC分类号： G11B7/0945 , G11B7/0908 , G11B7/13925
摘要： An optical disc apparatus includes a control section. The control section performs a first search while the tracking control is in the off state. The first search is for searching for a plurality of sets of the focus positions of the light beam and the spherical aberration amounts such that an amplitude of the tracking error signal is greater than a predetermined value. The control section performs a second search while the tracking control is in the on state. The second search is for determining a set of the focus position of the light beam and the spherical aberration amount such that the reproduced signal quality index is substantially optimal, among the plurality of sets of the focus positions of the light beam and the spherical aberration amounts obtained in the first search.
摘要翻译： 一种光盘装置，包括一个控制部分。 而跟踪控制处于关断状态的控制部分执行的第一搜索。 第一搜索是用于搜索的组的光束的焦点位置的多元化和球面像差量的跟踪误差信号的振幅搜索所做的是比规定值大。 而跟踪控制是在导通状态的控制部进行的第二搜索范围。 第二搜索是用于确定性采矿一组的光束的聚焦位置和球面像差量求DASS的模具再现信号质量指数基本上是最佳的，组的光束的聚焦位置和球面像差量的多元化之间 获得了第一的搜索。
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7.发明公开Optical disk and optical disk apparatus employing the same 审中-公开Optische Platte und optischesPlattengerät，das diese verwendet
公开(公告)号：EP0973155A2
公开(公告)日：2000-01-19
申请号：EP99113652.4
申请日：1999-07-14
IPC分类号： G11B7/007
CPC分类号： G11B27/19 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/0938 , G11B7/24085 , G11B27/3027
摘要： An optical disk includes tracks and grooves, the grooves being formed with a pitch equal to or greater than about λ/NA. A first array of pits is provided at a position which is shifted by a predetermined amount with respect to each track in one of two directions substantially perpendicular to the tracks, the first array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of a pitch of the grooves taking a value within a range from about 0 to about λ/NA. A second array of pits is provided at a position which is shifted by a predetermined amount with respect to the track in the other one of the two directions substantially perpendicular to the tracks, the second array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of the pitch of the grooves taking a value within the range from about 0 to about λ/NA. λ is a wavelength of a light beam which is radiated on the optical disk, and NA is a numerical aperture of a lens.
摘要翻译： 光盘包括轨道和凹槽，凹槽以等于或大于约λ/ NA的间距形成。 第一凹坑阵列设置在基本上垂直于轨道的两个方向中的一个方向上相对于每个轨道偏移预定量的位置，第一阵列凹坑以预定间距形成，其中预定间距为 值为0〜λ/ NA左右的槽的间距的函数。 第二凹坑阵列设置在相对于基本上垂直于轨道的两个方向中的另一个方向上的轨道相对于轨道偏移预定量的位置，第二凹坑阵列以预定间距形成，其中 预定间距是凹槽的间距的函数，其取值在约0至约λ/ NA的范围内。 λ是辐射在光盘上的光束的波长，NA是透镜的数值孔径。
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公开(公告)号：EP1426933A2
公开(公告)日：2004-06-09
申请号：EP03027342.9
申请日：2003-11-26
IPC分类号： G11B7/085
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; 聚焦偏移部分，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; 在多个区域接收从数据存储层反射的光并产生光量信号的光接收部分; 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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