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1. 发明授权

US5831952A Optical disk thickness discriminating apparatus 失效
标题翻译：光盘厚度识别装置
公开(公告)号：US5831952A
公开(公告)日：1998-11-03
申请号：US687028
申请日：1996-07-25
申请人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
发明人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
IPC分类号： G11B7/00 , G11B7/09 , G11B7/13 , G11B19/12
CPC分类号： G11B7/131 , G11B19/12 , G11B7/0945 , G11B2007/0006 , G11B7/0908 , G11B7/0941
摘要： An optical disk apparatus comprising a device for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; a device for detecting a reflected light from the disk; and a device for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS1L.sub.max of an output signal from the reflected light detecting device and a maximum value ENV.sub.max of an amplitude of an information reproducing signal are detected while driving the focal point moving device so that the focal point passes through the information face, and the discriminating device discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENV.sub.max to AS1L.sub.max. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.
摘要翻译：一种光盘装置，包括：用于移动光束焦点的装置，用于在与信息面垂直的方向上再现记录在盘的信息面上的信息; 用于检测来自盘的反射光的装置; 以及用于鉴别设备中的盘是否是具有厚基底或具有薄基底的盘的盘的装置。在该装置中，在驱动焦点移动装置时检测来自反射光检测装置的输出信号的最大值AS1Lmax和信息再现信号的振幅的最大值ENVmax，使得焦点通过信息面鉴别装置基于ENVmax与AS1Lmax的比率来判别装置中的盘是否是具有厚基底或具有薄基底的盘的盘。因此，可以区分具有薄基底基板的DVD和具有厚基底基板的CD。

2. 发明授权

US06434094B1 Optical disk apparatus 有权
公开(公告)号：US06434094B1
公开(公告)日：2002-08-13
申请号：US09939587
申请日：2001-08-28
申请人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
发明人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
IPC分类号： G11B700
摘要： An optical disk apparatus comprising a device for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; a device for detecting a reflected light from the disk; and a device for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS1Lmax of an output signal from the reflected light detecting device and a maximum value ENVmax of an amplitude of an information reproducing signal are detected while driving the focal point moving device so that the focal point passes through the information face, and the discriminating device discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENVmax to AS1Lmax. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.

3. 发明授权

US06304536B1 Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US06304536B1
公开(公告)日：2001-10-16
申请号：US09624351
申请日：2000-07-24
申请人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
发明人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
IPC分类号： G11B700
CPC分类号： G11B7/131 , G11B7/0908 , G11B7/0941 , G11B7/0945 , G11B19/12 , G11B2007/0006
摘要： An optical disk apparatus comprising a device for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; a device for detecting a reflected light from the disk; and a device for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS1Lmax of an output signal from the reflected light detecting device and a maximum value ENVmax of an amplitude of an information reproducing signal are detected while driving the focal point moving device so that the focal point passes through the information face, and the discriminating device discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENVmax to AS1Lmax. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.
摘要翻译：一种光盘装置，包括：用于移动光束焦点的装置，用于在与信息面垂直的方向上再现记录在盘的信息面上的信息; 用于检测来自盘的反射光的装置; 以及用于鉴别设备中的盘是否是具有厚基底或具有薄基底的盘的盘的装置。在该装置中，在驱动焦点移动装置时检测来自反射光检测装置的输出信号的最大值AS1Lmax和信息再现信号的振幅的最大值ENVmax，使得焦点通过信息面鉴别装置基于ENVmax与AS1Lmax的比率来判别装置中的盘是否是具有厚基底或具有薄基底的盘的盘。因此，可以区分具有薄基底基板的DVD和具有厚基底基板的CD。

4. 发明授权

US6147946A Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US6147946A
公开(公告)日：2000-11-14
申请号：US1289
申请日：1997-12-31
申请人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
发明人： Shin-Ichi Yamada , Mitsurou Moriya , Yasuaki Edahiro , Kouichi Takamine , Katsuya Watanabe
IPC分类号： G11B7/00 , G11B7/09 , G11B7/13 , G11B19/12
CPC分类号： G11B7/131 , G11B19/12 , G11B7/0945 , G11B2007/0006 , G11B7/0908 , G11B7/0941
摘要： An optical disk apparatus comprising means for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; means for detecting a reflected light from the disk; and means for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS1L.sub.max of an output signal from the reflected light detecting means and a maximum value ENV.sub.max of an amplitude of an information reproducing signal are detected while driving the focal point moving means so that the focal point passes through the information face, and the discriminating means discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENV.sub.max to AS1L.sub.max. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.
摘要翻译：一种光盘装置，包括用于移动光束的焦点的装置，用于在与信息面垂直的方向上再现记录在盘的信息面上的信息; 用于检测来自盘的反射光的装置; 以及用于鉴别设备中的盘是否是具有厚基底或具有薄基底的盘的盘的装置。在该装置中，在驱动焦点移动装置时检测来自反射光检测装置的输出信号的最大值AS1Lmax和信息再现信号的幅度的最大值ENVmax，使得焦点通过信息面鉴别装置基于ENVmax与AS1Lmax的比值来判别装置中的盘是否是具有厚基底或具有薄基底的盘的盘。因此，可以区分具有薄基底基板的DVD和具有厚基底基板的CD。

5. 再颁专利

USRE40946E1 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：USRE40946E1
公开(公告)日：2009-10-27
申请号：US10677169
申请日：2003-10-02
申请人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
发明人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a reflected light from the recording medium; means for detecting a focus condition of the light beam on the basis on an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.
摘要翻译：光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于检测来自记录介质的反射光的装置; 用于基于来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

6. 发明授权

US6011762A Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US6011762A
公开(公告)日：2000-01-04
申请号：US688294
申请日：1996-07-29
申请人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
发明人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
IPC分类号： G11B7/00 , G11B7/085 , G11B7/09
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a focus condition of the light beam on the basis of an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.
摘要翻译：光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于根据来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

7. 发明授权

US06298019B1 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06298019B1
公开(公告)日：2001-10-02
申请号：US09430040
申请日：1999-10-29
申请人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
发明人： Katsuya Watanabe , Mitsurou Moriya , Shin-ichi Yamada , Yasuaki Edahiro , Takeharu Yamamoto
IPC分类号： G11B700
CPC分类号： G11B7/0945 , G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk apparatus comprises a focusing means for focusing a light beam on a recording medium having first and second information faces; means for moving a focal point of the light beam in a direction substantially perpendicular to the information faces of the recording medium; means for detecting a reflected light from the recording medium; means for detecting a focus condition of the light beam on the basis of an output signal from the reflected light detecting means; a focus control means for driving the focal point moving means on the basis of an output signal from the focus condition detecting means, and controlling the light beam so that the focus condition of the light beam becomes a prescribed focus condition; and a focus jumping means for moving the focal point of the light beam from the first information face to the second information face by driving the focal point moving means.
摘要翻译：光盘装置包括用于将光束聚焦在具有第一和第二信息面的记录介质上的聚焦装置; 用于沿着与记录介质的信息面大致垂直的方向移动光束的焦点的装置; 用于检测来自记录介质的反射光的装置; 用于根据来自反射光检测装置的输出信号检测光束的聚焦条件的装置; 焦点控制装置，用于根据来自聚焦条件检测装置的输出信号驱动焦点移动装置，并控制光束使得光束的聚焦条件成为规定的聚焦条件; 以及聚焦跳跃装置，用于通过驱动焦点移动装置将光束的焦点从第一信息面移动到第二信息面。

8. 发明授权

US07719931B2 Optical disk device, loop gain setting method, and loop gain setting program 失效
标题翻译：光盘设备，环路增益设置方法和环路增益设置程序
公开(公告)号：US07719931B2
公开(公告)日：2010-05-18
申请号：US11103508
申请日：2005-04-12
申请人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
发明人： Kenji Kondo , Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune
IPC分类号： G11B7/00 , G11B5/55 , G11B7/125
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：公开了一种光盘装置，其包括用于求出第一区域的第一跟踪环路增益的环路增益调整装置，以及用于基于第一区域的环路增益来估计第二区域的第二环路增益的环路增益估计装置。因此，可以设定所有区域的最佳跟踪控制环路增益。作为副作用，可以确保良好的跟踪控制稳定性，而不管区域如何，这提高了再现和记录的可靠性。

9. 发明授权

US07440362B2 Optical disc drive which uses a train of pulses to shift the focus of a focusing section 有权
标题翻译：使用一串脉冲来移动聚焦部分的焦点的光盘驱动器
公开(公告)号：US07440362B2
公开(公告)日：2008-10-21
申请号：US10722875
申请日：2003-11-26
申请人： Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune , Yuuichi Kuze
发明人： Katsuya Watanabe , Shin-ichi Yamada , Kenji Fujiune , Yuuichi Kuze
IPC分类号： G11B7/00
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; 聚焦移动部分，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; 光接收部分，用于在多个区域接收从数据存储层反射的光并产生光量信号; 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。

10. 发明授权

US07257053B2 Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：US07257053B2
公开(公告)日：2007-08-14
申请号：US10475473
申请日：2002-04-15
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).
摘要翻译：通过避免聚光透镜和光盘之间的碰撞而具有高可靠性的光盘装置，无论聚焦控制是处于工作状态还是处于非工作状态，从而防止会聚透镜和光盘的损坏。当聚焦控制处于非工作状态时，通过使用来自光盘（1）的反射光量，确定光束的焦点在信息表面附近，聚焦透镜（15）为被驱动离开光盘（1）。

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