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1. 发明授权

US07327642B2 Method of moving a beam spot between information storage layers of an optical disk 失效
标题翻译：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。

2. 发明授权

US06925048B2 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06925048B2
公开(公告)日：2005-08-02
申请号：US10046561
申请日：2001-11-09
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 , G11B7/24
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。

3. 发明申请

US20050237867A1 Optical disc apparatus 有权
标题翻译：光盘装置
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。

4. 发明授权

US07480232B2 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US07480232B2
公开(公告)日：2009-01-20
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： G11B7/24
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。

5. 发明授权

US07054241B2 Optical disc apparatus 失效
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.

6. 发明授权

US07130250B2 Optical head and optical disk apparatus for performing focus pull in 失效
标题翻译：用于进行焦点拉入的光头和光盘装置
公开(公告)号：US07130250B2
公开(公告)日：2006-10-31
申请号：US10317094
申请日：2002-12-12
申请人： Kenji Fujiune , Yuichi Kuze , Kenji Kondo , Shinichi Yamada , Katsuya Watanabe
发明人： Kenji Fujiune , Yuichi Kuze , Kenji Kondo , Shinichi Yamada , Katsuya Watanabe
IPC分类号： G11B7/095 , G11B7/00
CPC分类号： G11B7/08511 , G11B2007/0013
摘要： An optical disk apparatus includes an optical detector which has light receiving areas divided nearly concentrically with an optical beam and outputs a signal corresponding to the amount of the reflected light from an optical disk. A surface vicinity detecting section adds up signals from all the light-receiving areas of the optical detector and outputs a detection signal. The detection signal continuously varies so as to have one maximum level while a beam spot of the optical beam moves from the surface of the information medium to the information plane. An information plane detecting section judges that the focus or the beam spot of the optical beam comes closer to the information plane of the optical disk by detecting the gradient of the detection signal. An approach of a condensing lens and the optical disk is judged based on the judgment results, and thus a collision of the condensing lens and the optical disk can be prevented.
摘要翻译：光盘装置包括光检测器，其具有与光束几乎同心分开的光接收区域，并且输出与来自光盘的反射光量对应的信号。表面附近检测部将来自光检测器的所有光接收区域的信号相加，并输出检测信号。检测信号连续变化，从而具有一个最大值，同时光束的光束点从信息介质的表面移动到信息平面。通过检测检测信号的梯度，信息面检测部判断出光束的聚焦或光点靠近光盘的信息平面。基于判断结果判断聚光透镜和光盘的接近，从而可以防止聚光透镜与光盘的碰撞。

7. 发明授权

US08000202B2 Apparatus for recording/reproducing information on/from an optical disc having focus control capabilities 失效
标题翻译：用于在具有聚焦控制能力的光盘上记录/再现信息的装置
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。

8. 发明申请

US20090028028A1 OPTICAL DISC, AND INFORMATION RECORDING/REPRODUCING METHOD AND INFORMATION RECORDING/REPRODUCING APPARATUS USING THE SAME 失效
标题翻译：光盘，信息记录/再现方法和信息记录/再现装置
公开(公告)号：US20090028028A1
公开(公告)日：2009-01-29
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。

9. 发明授权

US07349298B2 Optical disc drive including detection and correction of spherical aberration 失效
标题翻译：光盘驱动器包括球面像差的检测和校正
公开(公告)号：US07349298B2
公开(公告)日：2008-03-25
申请号：US10679171
申请日：2003-10-02
申请人： Yuichi Kuze , Katsuya Watanabe , Shinichi Yamada , Kosei Sano
发明人： Yuichi Kuze , Katsuya Watanabe , Shinichi Yamada , Kosei Sano
IPC分类号： G11B7/095
CPC分类号： G11B7/1378 , G11B7/0948 , G11B7/131 , G11B7/13927
摘要： The optical disc drive reads and/or writes data from/on an optical disc having an information storage layer. In an optical disc drive 100, light from a light source 3 is focused by a focusing section 1, and each of the peripheral and non-peripheral part of light reflected by the information storage layer is received by a photodetector 4. Then, for each part of light, the drive 100 generates a focus signal and a light quantity signal, and normalizes the focus signal based on the light quantity signal. As a result, it is possible to generate a spherical aberration signal according to a quantity of spherical aberration produced at the focusing position of the light. Hence, the signal is not affected by defocusing and thus it is possible to precisely detect a spherical aberration caused by an uneven thickness of the disc and to detect a spherical aberration with high accuracy.
摘要翻译：光盘驱动器从具有信息存储层的光盘上读取数据和/或写入数据。在光盘驱动器100中，来自光源3的光被聚焦部分1聚焦，并且由信息存储层反射的光的周边部分和非外围部分的每一个被光电检测器4接收。然后，对于光的每一部分，驱动器100产生聚焦信号和光量信号，并且基于光量信号对聚焦信号进行归一化。结果，可以根据在聚光位置处产生的球面像差的量来产生球面像差信号。因此，信号不受散焦的影响，因此可以精确地检测由盘的厚度不均匀引起的球面像差，并且可以高精度地检测球面像差。

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