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1. 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。

2. 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。

3. 发明授权

US5699334A Control devices for optical disk based on driving signal saturation 失效
标题翻译：基于驱动信号饱和的光盘控制装置
公开(公告)号：US5699334A
公开(公告)日：1997-12-16
申请号：US589861
申请日：1996-01-22
申请人： Shin-ichi Yamada , Takeharu Yamamoto , Yasuaki Edahiro , Mitsurou Moriya
发明人： Shin-ichi Yamada , Takeharu Yamamoto , Yasuaki Edahiro , Mitsurou Moriya
IPC分类号： G11B7/095 , G11B7/09
CPC分类号： G11B7/0941
摘要： A tracking control device for controlling a position of a beam spot formed by converging a light beam on a disk having tracks formed thereon includes: an actuator for moving the beam spot in a direction substantially perpendicular to the tracks; a tracking error detecting circuit for detecting a deviation of the beam spot from one of the tracks using the light beam returning from the disk and for outputting a tracking error signal indicative of the detected deviation; and a control circuit section for outputting a driving signal to drive the actuator in accordance with the tracking error signal so as to control the beam spot to be positioned on the one of the tracks. When the driving signal is saturated, the control circuit section obtains a saturation signal in accordance with an amount of the saturation, delays the saturation signal, and supplies the saturation signal to the actuator together with the driving signal.
摘要翻译：一种跟踪控制装置，用于控制通过将光束会聚在具有形成在其上的轨道的盘上而形成的光束点的位置，包括：致动器，用于沿大致垂直于轨道的方向移动光束点; 跟踪误差检测电路，用于使用从光盘返回的光束来检测光束点与其中一个光点的偏差，并输出指示检测到的偏差的跟踪误差信号; 以及控制电路部分，用于根据跟踪误差信号输出驱动信号以驱动致动器，以便控制光束点位于一条轨道上。当驱动信号饱和时，控制电路部分根据饱和量获得饱和信号，延迟饱和信号，并将饱和信号与驱动信号一起提供给致动器。

4. 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。

5. 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。

6. 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.

7. 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。

8. 发明授权

US06195321B1 Disk rotation control apparatus with deceleration means 失效
标题翻译：具有减速装置的盘旋转控制装置
公开(公告)号：US06195321B1
公开(公告)日：2001-02-27
申请号：US08740273
申请日：1996-10-25
申请人： Kouichi Takamine , Shin-Ichi Yamada , Yasuaki Edahiro , Mitsurou Moriya
发明人： Kouichi Takamine , Shin-Ichi Yamada , Yasuaki Edahiro , Mitsurou Moriya
IPC分类号： G11B700
CPC分类号： G11B19/22 , G11B7/0037 , G11B19/28
摘要： A disk rotation control apparatus includes a spindle motor for rotating a disk, a rotational speed detecting device for detecting the rotational speed of the spindle motor, a signal generating device for generating an acceleration signal that accelerates the rotation of the spindle motor and a deceleration signal that decelerates the rotation of the spindle motor. A storage device for rotating the spindle motor with an acceleration signal generated by the signal generating device, measures a rise time required to reach a prescribed rotational speed &ohgr;1 while detecting the rotational speed of the spindle motor by the rotational speed detecting device, and stores the measured rise time. A control device for decides a time to generate the deceleration signal in the signal generating device on the basis of the rise time stored in the storage device, and stops the rotation of the spindle motor by applying the deceleration signal to the spindle motor. Therefore, even when the diameter or the mass of the disk varies or the characteristics of the spindle motor or the driving circuit vary, undesired reverse rotation of the disk due to over-deceleration or undesired increase in the time required to stop the disk is avoided. As a result, the rotation of the disk can be stopped with high reliability.
摘要翻译：盘旋转控制装置包括用于旋转盘的主轴电动机，用于检测主轴电动机的转速的转速检测装置，用于产生加速主轴电动机的旋转的加速度信号的信号发生装置和减速信号使主轴电动机的旋转减速。一种用信号发生装置产生的加速度信号旋转主轴电动机的存储装置，在通过转速检测装置检测主轴电动机的转速的同时，测量达到规定转速ω1所需的上升时间，测量上升时间。一种控制装置，用于基于存储在存储装置中的上升时间来决定在信号发生装置中产生减速信号的时间，并且通过向主轴电机施加减速信号来停止主轴电动机的旋转。因此，即使当盘的直径或质量变化或主轴电动机或驱动电路的特性发生变化时，也避免了由于过度减速而引起的盘的不期望的反向转动或停止盘所需的时间的不需要的增加。结果，可以高可靠性地停止盘的旋转。

9. 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。

10. 发明授权

US5886962A Tilt control apparatus with tilt target value based on bit error rate signal 失效
标题翻译：倾斜控制装置，具有基于误码率信号的倾斜目标值
公开(公告)号：US5886962A
公开(公告)日：1999-03-23
申请号：US18637
申请日：1998-02-04
申请人： Kouichi Takamine , Yasuaki Edahiro , Hiromichi Ishibashi , Mitsurou Moriya
发明人： Kouichi Takamine , Yasuaki Edahiro , Hiromichi Ishibashi , Mitsurou Moriya
IPC分类号： G11B7/095
CPC分类号： G11B7/0956
摘要： The tilt control apparatus of the invention controls to minimize an error in an orthogonal relationship between an optical disk and an optical axis of a light beam irradiated onto the optical disk. The tilt control apparatus includes: an optical pickup for irradiating the light beam onto the optical disk, thereby reproducing information recorded on the optical disk; an orthogonality error detector for outputting an orthogonality error signal corresponding to the error in the orthogonal relationship between the optical disk and the optical axis; a tilting mechanism for tilting the optical axis; a tilt controller for controlling such that the optical disk falls at right angles with the optical axis by driving the tilting mechanism in response to the orthogonality error signal; a pulse width variation detector for outputting a pulse width variation signal corresponding to a variation in a pulse width of an information reproduced signal obtained from the optical pickup; and a target value variable circuit for varying a control target value of the tilt controller based on the pulse width variation signal.
摘要翻译：本发明的倾斜控制装置控制使光盘与照射在光盘上的光束的光轴之间的正交关系中的误差最小化。倾斜控制装置包括：用于将光束照射到光盘上的光学拾取器，从而再现记录在光盘上的信息; 用于输出与光盘与光轴之间的正交关系中的误差相对应的正交性误差信号的正交误差检测器; 倾斜机构，用于倾斜光轴; 倾斜控制器，用于通过响应于正交性误差信号驱动倾斜机构来控制光盘与光轴成直角; 脉冲宽度变化检测器，用于输出与从光学拾取器获得的信息再现信号的脉冲宽度的变化相对应的脉冲宽度变化信号; 以及目标值可变电路，用于根据脉冲宽度变化信号改变倾斜控制器的控制目标值。

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