公开(公告)号：US08014240B2

公开(公告)日：2011-09-06

申请号：US12294510

申请日：2007-03-29

申请人： Kenji Kondo ,  Takashi Kishimoto ,  Kenji Fujiune

发明人： Kenji Kondo ,  Takashi Kishimoto ,  Kenji Fujiune

IPC分类号： G11B7/00

CPC分类号： G11B7/0906 ,  G11B7/0908 ,  G11B7/0941 ,  G11B2007/0013

摘要： An optical disk device includes a DPDTE signal generating section that detects misalignment between a light spot and a mark or a pit, an FE signal generating section, an optical crosstalk correcting section which corrects a signal output by the FE signal generating section using the DPDTE signal generating section, and a focus control section which controls an actuator so that a light beam converges on an information layer. The DPDTE signal generating section detects the misalignment on the basis of phase information obtained from signals received from predetermined light receiving areas. The optical crosstalk correcting section performs a correcting operation of removing a signal component from predetermined receiving areas of a detector which component is used for a DPDTE signal, the signal component being contained in the signals from the predetermined light receiving areas of the detector which signals are used by the FE signal generating section.

摘要翻译： 光盘装置包括检测光点与标记或凹坑之间的未对准的DPDTE信号产生部分，FE信号产生部分，光学串扰校正部分，其利用DPDTE信号校正由FE信号产生部分输出的信号 以及控制致动器以使光束会聚在信息层上的聚焦控制部。 DPDTE信号产生部分根据从预定的光接收区域接收的信号获得的相位信息来检测未对准。 光串扰校正部分执行从DPDTE信号中使用该组件的检测器的预定接收区域中去除信号分量的校正操作，该信号分量包含在来自检测器的预定光接收区域的信号中，该信号是 由FE信号产生部使用。

公开(公告)号：US08000202B2

公开(公告)日：2011-08-16

申请号：US12241239

申请日：2008-09-30

申请人： Katsuya Watanabe ,  Shinichi Yamada ,  Kenji Fujiune ,  Yuichi Kuze

发明人： Katsuya Watanabe ,  Shinichi Yamada ,  Kenji Fujiune ,  Yuichi Kuze

IPC分类号： G11B7/00

CPC分类号： G11B20/1252 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/0079 ,  G11B7/08511 ,  G11B7/24038 ,  G11B20/1883 ,  G11B20/1889 ,  G11B27/19 ,  G11B2007/0013 ,  G11B2220/20 ,  G11B2220/211 ,  G11B2220/235

摘要： The present invention provides a method for recording/reproducing information on/from an optical disc, wherein the optical disc has a first to an n-th recording layers (n is an integer of 2 or greater) laminated on a substrate, each of the first to the n-th layers having data regions segmented into a first to an m-th data zone groups (m is an integer of 2 or greater) along a radial direction of the optical disc, each of the first to the m-th data zone groups including at least one data zone, the method comprising the steps of: a) recording/reproducing information in/from data zone groups from a j-th data zone group of a first recording layer to a j-th data zone group of an n-th recording layer; and b) repeating step a) for j=1, 2, . . . , m.

摘要翻译： 本发明提供了一种在光盘上记录/再现信息的方法，其中光盘具有层叠在基板上的第一至第n记录层（n为2或更大的整数），每个 首先，具有沿着光盘的径向方向分割成第一至第m数据区组（m为2以上的整数）的数据区的第n层，分别为第一至第m 包括至少一个数据区的数据区组，所述方法包括以下步骤：a）在/从第一记录层的第j个数据区组到第j个数据区组的数据区组中记录/再现信息 的第n记录层; 和b）重复步骤a）j = 1,2，...。 。 。 ，m。

公开(公告)号：US07496006B2

公开(公告)日：2009-02-24

申请号：US10691848

申请日：2003-10-23

申请人： Takeharu Yamamoto ,  Kenji Fujiune ,  Shinichi Yamada ,  Katsuya Watanabe

发明人： Takeharu Yamamoto ,  Kenji Fujiune ,  Shinichi Yamada ,  Katsuya Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B19/26 ,  G11B19/28

摘要： An optical disc controller of the present invention servo-controls an optical disc device which comprises a disc motor rotating an optical disc and an optical head emitting a light beam for recording data on the optical disc and/or reproducing data from the optical disc. The optical disc controller comprises: a variable clock output section for outputting a plurality of clock signals of different frequencies, and a control section which receives from the optical head a signal indicating a deviation from a predetermined target value to servo-control the light beam of the optical disc device and performs an operation according to the signal indicating the deviation so as to obtain and output a signal indicating a control amount. The variable clock output section changes a frequency of the clock signal according to a recording speed and/or a reproducing speed when the optical disc device performs recording and/or reproduction, and the control section performs an operation to be performed in synchronization with the clock signal of the variable clock output section.

摘要翻译： 本发明的光盘控制器对光盘装置进行伺服控制，该光盘装置包括旋转光盘的盘马达和发射光束的光头，用于在光盘上记录数据和/或从光盘再现数据。 光盘控制器包括：可变时钟输出部分，用于输出不同频率的多个时钟信号;以及控制部分，其从光学头接收指示与预定目标值的偏差的信号，以伺服控制光束的光束 光盘装置，并根据指示偏差的信号进行操作，以获得并输出指示控制量的信号。 当光盘装置执行记录和/或再现时，可变时钟输出部分根据记录速度和/或再现速度改变时钟信号的频率，并且控制部分执行与时钟同步的操作 可变时钟输出部分的信号。

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

IPC分类号： G11B7/125 ,  G11B7/09

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。

公开(公告)号：US20070258337A1

公开(公告)日：2007-11-08

申请号：US11825004

申请日：2007-07-03

申请人： Kenji Fujiune ,  Yuuichi Kuze ,  Shin-ichi Yamada ,  Katsuya Watanabe

发明人： Kenji Fujiune ,  Yuuichi Kuze ,  Shin-ichi Yamada ,  Katsuya Watanabe

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).

公开(公告)号：US07196977B2

公开(公告)日：2007-03-27

申请号：US10669809

申请日：2003-09-25

申请人： Takashi Kishimoto ,  Katsuya Watanabe ,  Kenji Fujiune

发明人： Takashi Kishimoto ,  Katsuya Watanabe ,  Kenji Fujiune

IPC分类号： B11B21/08

CPC分类号： G11B7/08529

摘要： In track jumping operation, an acceleration/deceleration pulse generation portion measures the TE signal amplitude during track jumping, and modifies the acceleration/deceleration time of the acceleration/deceleration pulse according to the measured amplitude to drive a tracking actuator. Also, the acceleration/deceleration pulse generation portion measures the movement time from the start of acceleration until a certain location is reached, and modifies the peak value of the deceleration pulse according to the measured time to drive the tracking actuator.

摘要翻译： 在轨道跳跃操作中，加速/减速脉冲产生部分测量轨道跳跃期间的TE信号振幅，并且根据测量的振幅修改加速/减速脉冲的加速/减速时间，以驱动跟踪致动器。 此外，加速/减速脉冲产生部分测量从加速开始到达某一位置的移动时间，并且根据测量的时间来修改减速脉冲的峰值以驱动跟踪致动器。

公开(公告)号：US07054241B2

公开(公告)日：2006-05-30

申请号：US10326621

申请日：2002-12-19

申请人： Kenji Kondo ,  Yuichi Kuze ,  Kenji Fujiune ,  Shinichi Yamada ,  Katsuya Watanabe

发明人： Kenji Kondo ,  Yuichi Kuze ,  Kenji Fujiune ,  Shinichi Yamada ,  Katsuya Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B7/094 ,  G11B7/0945

摘要： An optical disc apparatus comprises: rotating means for rotating an information recording medium; a light source for irradiating a light beam onto a data side of the information recording medium; converging means for converging said light beam; focus error detecting means for detecting a difference between said data side and the focus of the light beam converged by said converging means; focus direction transferring means for transferring said converging means in a direction perpendicular to said data side; focus controlling means for driving said focus direction transferring means based on the output of said focus error detecting means in such a way that said light beam converges on said data side in a predetermined state; tracking direction transferring means for transferring said light source in the radius direction of said information recording medium; and tilt calculating means for calculating average values of the outputs of said focus controlling means obtained for a period of time, which is an integer multiple of a period during which said information recording medium makes one rotation at two different points in said radius direction and calculating an inclination of said data side based on said average values at said two different points.

公开(公告)号：US20050237867A1

公开(公告)日：2005-10-27

申请号：US11159801

申请日：2005-06-23

申请人： Yuichi Kuze ,  Katsuya Watanabe ,  Takeharu Yamamoto ,  Takashi Kishimoto ,  Kenji Fujiune

发明人： Yuichi Kuze ,  Katsuya Watanabe ,  Takeharu Yamamoto ,  Takashi Kishimoto ,  Kenji Fujiune

IPC分类号： G11B7/007 ,  G11B7/085 ,  G11B20/10 ,  G11B20/12 ,  G11B27/24 ,  G11B27/32 ,  G11B7/09 ,  G11B7/125

CPC分类号： G11B20/0026 ,  G11B7/00736 ,  G11B7/08505 ,  G11B20/10009 ,  G11B27/24 ,  G11B27/329 ,  G11B2020/1259 ,  G11B2220/211 ,  G11B2220/2562

摘要： An optical disc apparatus according to the present invention is usable for an optical disc including a bar code area and a control data area adjacent to the bar code area in a radial direction of the optical disc. The optical disc apparatus includes an optical head for directing an optical beam toward the optical disc so as to form an optical spot on the optical disc and output a signal in accordance with the optical beam reflected by the optical disc; a bar code area determination section for determining whether or not the optical spot is positioned on the bar code area of the optical disc based on the signal output by the optical head; and a control section for controlling the optical head so that the optical spot moves toward the control data area, when the optical spot is determined to be positioned on the bar code area.

摘要翻译： 根据本发明的光盘装置可用于包括条形码区域和与光盘径向方向上的条形码区域相邻的控制数据区域的光盘。 光盘装置包括用于将光束引向光盘以在光盘上形成光点并根据由光盘反射的光束输出信号的光学头; 条形码区域确定部分，用于基于由光头输出的信号确定光点是否位于光盘的条形码区域上; 以及控制部，用于当确定光点被定位在条形码区域上时，控制光学头，使得光点朝向控制数据区移动。

公开(公告)号：US20050083798A1

公开(公告)日：2005-04-21

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

IPC分类号： G11B7/1392 ,  G11B7/00 ,  G11B19/12

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所述球面像差; 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。

公开(公告)号：US06304528B1

公开(公告)日：2001-10-16

申请号：US09362516

申请日：1999-07-28

申请人： Yoshihiro Kanda ,  Yuuichi Kuze ,  Kenji Fujiune

发明人： Yoshihiro Kanda ,  Yuuichi Kuze ,  Kenji Fujiune

IPC分类号： G11B700

CPC分类号： G11B7/0946

摘要： An optical disk reproducing apparatus of the present invention includes a body, a disk motor which rotates a disk in which information recording tracks are formed concentrically or spirally on an information recording surface, a base fixed onto the disk motor and elastically suspended with respect to the body, and an optical head which is suspended with an elastic member from the base and is displaceable in a radial direction of the disk. The apparatus further includes: a track cross detecting portion for generating a track cross pulse, based on a reproduction signal when a light beam emitted from the optical head crosses the information recording tracks; a track cross direction detecting portion for detecting a track cross direction representing a direction in which the light beam emitted from the optical head crosses the information recording tracks; a motor control portion for controlling a velocity of the disk motor and outputting rotational angle information of the disk motor; a counting portion for counting the track cross pulse generated by the track cross detecting portion, based on the track cross direction detected by the track cross direction detecting portion and the rotational angle information output from the motor control portion; and a measurement portion for measuring an amplitude of vibrations of the base, based on a count result of the counting portion.

摘要翻译： 本发明的光盘再现装置包括一个主体，一个盘式电动机，其使信息记录轨道在信息记录表面上同心地或螺旋地形成的盘旋转，固定在盘式电动机上的基座和相对于 主体和光学头，其从基座悬挂有弹性构件并且可沿盘的径向方向移位。 该装置还包括：轨道交叉检测部分，用于当从光头发射的光束穿过信息记录道时，基于再现信号产生轨道交叉脉冲; 轨道横向检测部分，用于检测表示从光头发射的光束穿过信息记录道的方向的轨道横截面; 用于控制盘马达的速度并输出盘马达的旋转角度信息的马达控制部分; 计数部，其基于由轨道横向检测部检测出的轨道横截面和从马达控制部输出的旋转角度信息，对由轨道交叉检测部产生的轨道交叉脉冲进行计数; 以及基于计数部的计数结果来测量基座的振动幅度的测量部。