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公开(公告)号：US20050219976A1
公开(公告)日：2005-10-06
申请号：US10520774
申请日：2003-08-13
IPC分类号： G11B21/08 , G11B7/004 , G11B7/005 , G11B7/085 , G11B7/09 , G11B19/20 , G11B19/247 , G11B19/28 , G11B5/09
CPC分类号： G11B19/20 , G11B7/08511 , G11B7/08529 , G11B19/247
摘要： The optical disc apparatus comprises a disc motor (114) operable to rotate an optical disc (1), a traverse (111) operable to move an optical beam spot which is irradiated on an optical beam on the optical disc (1) to the radius direction of the optical disc (1), a linear velocity operation unit (117) operable to detect the linear velocity of the optical beam spot, a disc motor control unit (116) operable to control the disc motor (114) so that the linear velocity detected by the linear velocity operation unit (117) remains roughly invariable in an arbitrary radius location on the optical disc (1) when information recorded on the optical disc (1) is read out, a search control unit (121) and a location profile adjustment unit (118) operable to control a traverse (111) so as to prevent the linear velocity from decreasing to the permissible linear velocity or below when the optical beam spot is moved by the traverse (111).
摘要翻译： 光盘装置包括可操作以旋转光盘（1）的圆盘马达（114），可操作以将照射在光盘（1）上的光束上的光束点移动到半径 光盘（1）的方向，可操作以检测光束点的线速度的线速度运算单元（117），盘马达控制单元（116），其可操作以控制盘马达（114），使得线性 当读出记录在光盘（1）上的信息被读出时，由线速度操作单元（117）检测的速度在光盘（1）上的任意半径位置保持粗略不变，搜索控制单元（121）和位置 轮廓调整单元（118），其可操作以控制横动（111），以防止当光束斑点通过横动（111）移动时，线速度降低到允许的线速度或更低。
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公开(公告)号：US06567357B2
公开(公告)日：2003-05-20
申请号：US09839522
申请日：2001-04-20
IPC分类号： G11B700
CPC分类号： G11B7/08511 , G11B2007/0013
摘要： An optical disk apparatus of the present invention measures a surface deflection component (shape of surface deflection) from a low-pass component of a compensating filter in a surface deflection measuring part provided in a DSP. Furthermore, the optical disk apparatus calculates timing at which a positional change in a surface deflection component in time required for focus jumping is a predetermined value or less in a timing calculating part, and starts focus jumping at the timing. Because of this, stable focus jumping is made possible.
摘要翻译： 本发明的光盘装置从设置在DSP中的表面偏转测量部中的补偿滤波器的低通分量测量表面偏转分量（表面偏转的形状）。 此外，光盘装置计算定时计算部分中聚焦跳跃所需时间中的表面偏转分量的位置变化为预定值或更小的定时，并且在定时开始聚焦跳跃。 因此，可以实现稳定的重点跳跃。
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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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4.发明授权Method of moving a beam spot between information storage layers of an optical disk 失效在光盘的信息存储层之间移动光束点的方法公开(公告)号：US07327642B2
公开(公告)日：2008-02-05
申请号：US10423796
申请日：2003-04-25
申请人： Shinichi Yamada , Katsuya Watanabe , Yuichi Kuze , Kenji Fujiune , Kenji Kondo , Takashi Kishimoto , Takeharu Yamamoto
发明人： Shinichi Yamada , Katsuya Watanabe , Yuichi Kuze , Kenji Fujiune , Kenji Kondo , Takashi Kishimoto , Takeharu Yamamoto
IPC分类号： G11B7/095
CPC分类号： G11B7/13925 , G11B7/08511 , G11B7/0908 , G11B7/0945 , G11B7/0956 , G11B2007/0013
摘要： An optical disc drive includes a light source, a lens, a focusing section, a spherical aberration corrector, a focus signal generator, a gain calculator and a processor. The focusing section forms a beam spot in a focusing state on the information storage layer of an optical disc by controlling the position of the lens. The spherical aberration corrector changes a spherical aberration with the beam spot in a focusing state according to a drive value of a driving signal supplied to the spherical aberration corrector. The focus signal generator generates a focus signal representing the focusing state of the beam spot. The gain calculator calculates a loop gain of a focus control system in response to the focus signal. The processor determines the drive value for the spherical aberration corrector by the loop gain.
摘要翻译： 光盘驱动器包括光源，透镜，聚焦部分，球面像差校正器，聚焦信号发生器，增益计算器和处理器。 聚焦部分通过控制透镜的位置在光盘的信息存储层上形成聚焦状态的光斑。 球面像差校正器根据提供给球面像差校正器的驱动信号的驱动值，将聚焦状态下的束斑改变为球面像差。 聚焦信号发生器产生表示束斑的聚焦状态的聚焦信号。 增益计算器响应于聚焦信号计算聚焦控制系统的环路增益。 处理器通过环路增益确定球面像差校正器的驱动值。
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公开(公告)号：US07218582B2
公开(公告)日：2007-05-15
申请号：US10735009
申请日：2003-12-12
IPC分类号： G11B7/00
CPC分类号： G11B7/094
摘要： An optical disc drive is used to read and/or write data from/on an optical disc having a data storage layer. The drive corrects electrical offset while reading and/or writing data. The drive updates a correction value based on an electrical offset detected at correcting operation or a value derived using electrical offset values that has been detected and stored, without detecting an electrical offset at correcting operation. Therefore, the optical disc drive can correct the electrical offset less often.
摘要翻译： 光盘驱动器用于从具有数据存储层的光盘上读取数据和/或写入数据。 驱动器在读取和/或写入数据时纠正电气偏移。 驱动器基于在校正操作中检测到的电偏移或使用已经被检测和存储的电偏移值导出的值而更新校正值，而不检测校正操作的电偏移。 因此，光盘驱动器可以更少地校正电偏移。
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6.发明授权Optical disc drive for identifying and processing multiple optical disc types 有权用于识别和处理多种光盘类型的光盘驱动器公开(公告)号：US07190650B2
公开(公告)日：2007-03-13
申请号：US10648018
申请日：2003-08-26
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B19/12 , G11B2007/0006
摘要： An optical disc drive for processing multiple types of optical discs, of which information storage layers have different depths, includes: a light source; a lens for forming a beam spot; a photodetector for outputting a reflected light signal; a spherical aberration generator for generating a minimum spherical aberration when the beam spot is at a reference depth; a focus drive signal generator for moving the beam spot perpendicularly to the information storage layer of a loaded disc by controlling a position of the lens; a light quantity detector for generating a light quantity signal on receiving a reflected light signal every time the beam spot is moved; and a type recognizer for recognizing the type of the loaded disc by estimating the depth of the information storage layer according to a degree of symmetry of the waveform of the light quantity signal.
摘要翻译： 一种光盘驱动器，用于处理信息存储层具有不同深度的多种类型的光盘，包括：光源; 用于形成束斑的透镜; 用于输出反射光信号的光电检测器; 球面像差发生器，用于当束斑在参考深度时产生最小球面像差; 聚焦驱动信号发生器，用于通过控制透镜的位置来使束斑垂直于加载盘的信息存储层移动; 光量检测器，用于在每次所述束斑移动时在接收到反射光信号时产生光量信号; 以及用于通过根据光量信号的波形的对称度估计信息存储层的深度来识别加载的盘的类型的类型识别器。
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公开(公告)号：US06925048B2
公开(公告)日：2005-08-02
申请号：US10046561
申请日：2001-11-09
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 用于基于由光学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。
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公开(公告)号：US07480232B2
公开(公告)日：2009-01-20
申请号：US11159801
申请日：2005-06-23
IPC分类号： G11B7/24
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。
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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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公开(公告)号：US06834030B2
公开(公告)日：2004-12-21
申请号：US10463368
申请日：2003-06-17
IPC分类号： G11B700
CPC分类号： G11B7/0946 , G11B7/0901 , G11B7/0908 , G11B7/0941 , G11B7/095 , G11B7/0953
摘要： An optical disk apparatus includes: a light irradiator operable to converge a light beam and irradiate an information carrier with the converged light beam; a traverse motor operable to move the light beam in a direction traversing a track formed on a surface of the information carrier; and a tracking controller operable to control the traverse motor to scan the track with the light beam. The tracking controller includes a deviation detector operable to generate a detection signal, a tracking driving circuit operable to generate a driving signal, an integrator operable to integrate a magnitude of a signal corresponding to the driving signal over a predetermined time period and an abnormal state detector operable to detect an abnormal state of the traverse motor based on an output of the integrator.
摘要翻译： 光盘装置包括：光照射器，其可操作以会聚光束并用会聚光束照射信息载体; 横动马达，其可操作以沿着穿过形成在信息载体的表面上的轨道的方向移动光束; 以及跟踪控制器，其可操作以控制横动马达以光束扫描轨道。 跟踪控制器包括可操作以产生检测信号的偏差检测器，可操作以产生驱动信号的跟踪驱动电路，可用于在预定时间段内对与驱动信号相对应的信号的大小进行积分的积分器和异常状态检测器 可操作以基于积分器的输出来检测横动马达的异常状态。
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