公开(公告)号：US20070171783A1

公开(公告)日：2007-07-26

申请号：US10587483

申请日：2004-12-09

申请人： Mamoru Shoji ,  Yuuichi Kuze ,  Takahiro Sato

发明人： Mamoru Shoji ,  Yuuichi Kuze ,  Takahiro Sato

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0956 ,  G11B20/14

摘要： It is an object of the present invention to provide a method for absorbing individual variance between optical disc devices or optical discs, and for determining the optimal servo adjustment position even with optical discs in which no convex/concave pit string is present. When mounting a disc, servo position adjustment is performed in at least two stages: first servo position adjustment and second servo position adjustment. Also, second servo position adjustment is performed by recording a predetermined signal after the first servo position adjustment and reproducing the track where the predetermined signal was recorded.

摘要翻译： 本发明的目的是提供一种用于吸收光盘装置或光盘之间的各个方差的方法，并且即使对于不存在凸/凹凹坑串的光盘也可以确定最佳伺服调整位置。 安装光盘时，伺服位置调整至少进行两个阶段：第一个伺服位置调整和第二个伺服位置调整。 此外，通过在第一伺服位置调整和记录预定信号的轨道之后记录预定信号来执行第二伺服位置调整。

公开(公告)号：US07570551B2

公开(公告)日：2009-08-04

申请号：US10587483

申请日：2004-12-09

申请人： Mamoru Shoji ,  Yuuichi Kuze ,  Takahiro Sato

发明人： Mamoru Shoji ,  Yuuichi Kuze ,  Takahiro Sato

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0956 ,  G11B20/14

摘要： It is an object of the present invention to provide a method for absorbing individual variance between optical disc devices or optical discs, and for determining the optimal servo adjustment position even with optical discs in which no convex/concave pit string is present. When mounting a disc, servo position adjustment is performed in at least two stages: first servo position adjustment and second servo position adjustment. Also, the second servo position adjustment is performed by recording a predetermined signal after the first servo position adjustment and reproducing the track where the predetermined signal was recorded.

摘要翻译： 本发明的目的是提供一种用于吸收光盘装置或光盘之间的各个方差的方法，并且即使对于不存在凸/凹凹坑串的光盘也可以确定最佳伺服调整位置。 安装光盘时，伺服位置调整至少进行两个阶段：第一个伺服位置调整和第二个伺服位置调整。 此外，通过在第一伺服位置调整和记录预定信号的轨迹之后记录预定信号来执行第二伺服位置调整。

公开(公告)号：US20090274032A1

公开(公告)日：2009-11-05

申请号：US12095764

申请日：2007-01-30

申请人： Yuuichi Kuze ,  Katsuya Watanabe

发明人： Yuuichi Kuze ,  Katsuya Watanabe

IPC分类号： G11B7/135

CPC分类号： G11B7/08511 ,  G11B7/1275 ,  G11B2007/0013

摘要： This optical disc drive can read and/or write data from/on an optical disc 20 with multiple information layers including first and second information layers. The drive includes: a light source 3, 4 that emits the light beam; an objective lens 1; an actuator 2 for moving the objective lens perpendicularly to the information layers; a focus error generator 7 for generating a focus error signal representing how much the light beam has been converged on a target one of the information layers; and focus control means for forming a focal point of the light beam on the target information layer by driving the actuator in accordance with the focus error signal. According to the present invention, while a focus jump is being made to shift the focal point of the light beam from the first information layer of the optical disc 20 to the second information layer thereof by moving the objective lens 1, wavelengths and/or numerical apertures for the light beam are changeable while the objective lens 1 is moving.

摘要翻译： 该光盘驱动器可以从具有包括第一和第二信息层的多个信息层的光盘20上读出数据。 驱动器包括：发射光束的光源3,4; 物镜1; 用于使物镜垂直于信息层移动的致动器2; 聚焦误差发生器7，用于产生聚焦误差信号，该聚焦误差信号表示光束已经聚集在目标信息层上的多少; 以及聚焦控制装置，用于根据聚焦误差信号驱动致动器，在目标信息层上形成光束的焦点。 根据本发明，当通过移动物镜1进行聚焦跳跃以将光束的焦点从光盘20的第一信息层移动到第二信息层时，波长和/或数字 光束的孔径在物镜1移动时是可变的。

公开(公告)号：US07239595B2

公开(公告)日：2007-07-03

申请号：US10752810

申请日：2004-01-07

申请人： Yuuichi Kuze ,  Katsuya Watanabe ,  Kenji Fujiune

发明人： Yuuichi Kuze ,  Katsuya Watanabe ,  Kenji Fujiune

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/13927 ,  G11B2007/13727

摘要： A spherical aberration correction control device for controlling a spherical aberration correction section for correcting a spherical aberration of an optical beam irradiating an optical disc. The spherical aberration correction control device includes a spherical aberration control signal generation section for generating a spherical aberration control signal; and an output section for outputting the spherical aberration control signal to the spherical aberration correction section. A correction amount by which the spherical aberration is corrected is changed by the spherical aberration correction section in accordance with components of the spherical aberration control signal. The spherical aberration control signal generation section generates the spherical aberration control signal such that a sum of correction amounts corresponding to the respective components of the spherical aberration control signal becomes substantially zero with respect to a target correction amount.

摘要翻译： 一种球面像差校正控制装置，用于控制用于校正照射光盘的光束的球面像差的球面像差校正部分。 球面像差校正控制装置包括用于产生球面像差控制信号的球面像差控制信号产生部分; 以及用于将球面像差控制信号输出到球面像差校正部分的输出部分。 根据球面像差控制信号的分量，由球面像差校正部分改变校正球面像差的校正量。 球面像差控制信号生成部生成球面像差控制信号，使得对应于球面像差控制信号的各个分量的校正量的总和相对于目标校正量变得基本为零。

公开(公告)号：US06396779B1

公开(公告)日：2002-05-28

申请号：US09417184

申请日：1999-10-12

申请人： Kenji Fujiune ,  Mitsurou Moriya ,  Yoshihiro Kanda ,  Yuuichi Kuze

发明人： Kenji Fujiune ,  Mitsurou Moriya ,  Yoshihiro Kanda ,  Yuuichi Kuze

IPC分类号： G11B700

CPC分类号： G11B7/094 ,  G11B7/08505 ,  G11B7/0901 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/0953

摘要： An apparatus of the present invention is an optical disk apparatus for irradiating a track on an information carrier on which information is recorded with a light beam so as to reproduce information from the track. The optical disk apparatus includes: a tracking error detector for detecting a tracking error signal representing a displacement between the light beam and the track; a fine movement section for moving the light beam in a substantially radial direction of the information carrier; a coarse movement section for moving the fine movement section in the substantially radial direction of the information carrier; a tracking controller for controlling the fine movement section and the coarse movement section based on the tracking error signal detected by the tracking error detector so that the light beam is positioned along the track; and an eccentricity detector for detecting an amount of eccentricity of the track on the information carrier. The tracking controller controls the coarse movement section based on the amount of eccentricity detected by the eccentricity detector.

摘要翻译： 本发明的装置是一种用于在信息载体上照射轨道的光盘装置，其上记录有信息的光束以从轨道再现信息。 光盘装置包括：跟踪误差检测器，用于检测表示光束和轨道之间的位移的跟踪误差信号; 用于沿着信息载体的大致半径方向移动光束的微动部分; 粗动部，用于使信息载体的大致径向移动微动部; 跟踪控制器，用于基于由跟踪误差检测器检测到的跟踪误差信号来控制微动部分和粗动部分，使得光束沿着轨道定位; 以及用于检测信息载体上的轨道的偏心量的偏心检测器。 跟踪控制器基于偏心检测器检测到的偏心量来控制粗动部分。

公开(公告)号：US07586818B2

公开(公告)日：2009-09-08

申请号：US11597685

申请日：2005-05-27

申请人： Kenji Fujiune ,  Yuuichi Kuze ,  Katsuya Watanabe

发明人： Kenji Fujiune ,  Yuuichi Kuze ,  Katsuya Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/0908 ,  G11B7/0941 ,  G11B2007/0013

摘要： The purpose is to provide an optical disc apparatus which can accurately calculate a gain for focus control. An optical apparatus (100) includes: an FE generator (20) for generating an FE signal; an AS generator for generating an AS signal (21); a normalization operator (22); an Fc filter (23); a selector (24); a spherical aberration setting device (34); an FE amplitude measuring device (30); an Fc pull-in instructor (52); an after-pull-in AS measuring device (40); and a gain operator (32). The optical apparatus obtains an amplitude of the FE signal before the focus is pulled in, and obtains a level of the AS signal after the focus is pulled in to adjust a focus gain.

摘要翻译： 其目的是提供一种可以精确地计算用于聚焦控制的增益的光盘装置。 光学装置（100）包括：FE发生器（20），用于产生FE信号; AS发生器，用于产生AS信号（21）; 归一化算子（22）; Fc过滤器（23）; 选择器（24）; 球面像差设定装置（34）; FE振幅测量装置（30）; Fc牵引教练（52）; 后置AS测量装置（40）; 和增益算子（32）。 光学装置在聚焦被拉入之前获得FE信号的幅度，并且在焦点被拉入之后获得AS信号的电平以调整聚焦增益。

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。

公开(公告)号：US07158452B2

公开(公告)日：2007-01-02

申请号：US10468270

申请日：2002-02-20

申请人： Hiromichi Ishibashi ,  Katsuya Watanabe ,  Kenji Fujiune ,  Shinichi Yamada ,  Yuuichi Kuze

发明人： Hiromichi Ishibashi ,  Katsuya Watanabe ,  Kenji Fujiune ,  Shinichi Yamada ,  Yuuichi Kuze

IPC分类号： G11B7/095

CPC分类号： G11B7/08511 ,  G11B2007/0013

摘要： An optical disc unit 2001 comprises: reflective surface detection means 1010 for detecting a reflective surface; focus control means (1202, 1003, 1009, 1008, 1003, 1012, 1005 and 1204) for performing focus control to a reflective surface so that the distance between the focal point of an optical beam applied to an optical disc 2100 and the reflective surface is within a predetermined error limit; shift means 1007 for shifting the focal point of the optical beam in a direction perpendicular to the optical disc; and control means 1006 for controlling the focus control means and the shift means.

摘要翻译： 光盘单元2001包括：用于检测反射表面的反射表面检测装置1010; 用于对反射表面进行聚焦控制的聚焦控制装置（1202,1003,1009,1008,1003,1012,1005和1204），使得施加到光盘2100的光束的焦点与反射表面之间的距离 在预定的误差范围内; 移位装置1007，用于沿垂直于光盘的方向移动光束的焦点; 以及用于控制聚焦控制装置和移动装置的控制装置1006。

公开(公告)号：US20050141363A1

公开(公告)日：2005-06-30

申请号：US11006179

申请日：2004-12-07

申请人： Takeshi Shimamoto ,  Shin-ichi Yamada ,  Shin-ichi Kadowaki ,  Yuuichi Kuze ,  Kenji Kondo ,  Katsuya Watanabe

发明人： Takeshi Shimamoto ,  Shin-ichi Yamada ,  Shin-ichi Kadowaki ,  Yuuichi Kuze ,  Kenji Kondo ,  Katsuya Watanabe

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/085 ,  G11B7/09 ,  G11B7/135

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： 光盘装置包括控制部。 控制部在跟踪控制处于关闭状态时进行第一次搜索。 第一搜索用于搜索光束的多组聚焦位置和球面像差量，使得跟踪误差信号的幅度大于预定值。 当跟踪控制处于接通状态时，控制部执行第二次搜索。 第二搜索用于确定光束的聚焦位置和球面像差量的集合，使得重放信号质量指数基本上是最佳的，在光束的多组聚焦位置和球面像差量之间 在第一次搜索中获得。

公开(公告)号：US07606121B2

公开(公告)日：2009-10-20

申请号：US11189539

申请日：2005-07-26

申请人： Yuuichi Kuze ,  Katsuya Watanabe

发明人： Yuuichi Kuze ,  Katsuya Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B7/0945

摘要： An optical disk drive includes: a light source for producing a light beam; an objective lens for converging the light beam; an actuator for moving the objective lens with respect to an optical disk; a converging state detecting section for generating a focus error signal representing a converging state of the light beam on an information storage layer of the optical disk; and a focus control section for controlling the operation of the actuator such that the focus position of the light beam matches its target focus position as closely as possible in accordance with information about the target focus position and the focus error signal. The optical disk drive changes the target focus positions of the light beam when modes of operation are switched from a read mode into a write mode, or vice versa.

摘要翻译： 光盘驱动器包括：用于产生光束的光源; 用于会聚光束的物镜; 用于相对于光盘移动物镜的致动器; 会聚状态检测部分，用于产生表示光束在光盘的信息存储层上的会聚状态的聚焦误差信号; 以及焦点控制部分，用于根据关于目标对焦位置和聚焦误差信号的信息尽可能接近地控制致动器的操作，使得光束的焦点位置与其目标对焦位置一致。 当操作模式从读取模式切换到写入模式时，光盘驱动器改变光束的目标对焦位置，反之亦然。