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1. 发明申请

US20050024998A1 Servo control method and servo control circuit, and optical disk device having the same servo control circuit 审中-公开
标题翻译：伺服控制方法和伺服控制电路，以及具有相同伺服控制电路的光盘装置
公开(公告)号：US20050024998A1
公开(公告)日：2005-02-03
申请号：US10900337
申请日：2004-07-28
申请人： Yukio Inoue , Kazuyuki Yamaguchi , Taizou Kusano , Kazuhisa Hayashida , Yuichi Udo , Yuko Fujimoto , Hiromi Kuriyama , Takashi Ooishi , Yasuhiro Kaneo , Ryo Ando
发明人： Yukio Inoue , Kazuyuki Yamaguchi , Taizou Kusano , Kazuhisa Hayashida , Yuichi Udo , Yuko Fujimoto , Hiromi Kuriyama , Takashi Ooishi , Yasuhiro Kaneo , Ryo Ando
IPC分类号： G11B7/00 , G11B7/09 , G11B20/18 , G11B21/03
CPC分类号： G11B7/0948 , G11B20/18 , G11B20/1816
摘要： A servo error signal and a defect detection signal are generated from an output signal of the pickup unit, and a servo control signal and a hold signal are generated from the servo error signal. When changing to either a servo control signal or a hold signal based on the defect detection signal generated in a defect detection signal generation circuit which has a peak hold circuit having different tracking ability, so as to perform servo control of the pickup unit, a servo error signal predetermined time before a timing to change from the servo control signal to the hold signal is used as the servo error signal used for generation of the hold signal.
摘要翻译：从拾取单元的输出信号产生伺服误差信号和缺陷检测信号，并且从伺服误差信号产生伺服控制信号和保持信号。基于在具有不同跟踪能力的峰值保持电路的缺陷检测信号发生电路中产生的缺陷检测信号，当改变为伺服控制信号或保持信号时，为了执行拾取单元的伺服控制，伺服将从伺服控制信号改变为保持信号的定时之前的预定时间的误差信号用作用于产生保持信号的伺服误差信号。

2. 再颁专利

USRE41469E1 Optical disk recording method employing a plurality of recording areas and apparatus therefor 有权
标题翻译：采用多个记录区域的光盘记录方法及其装置
公开(公告)号：USRE41469E1
公开(公告)日：2010-08-03
申请号：US10899424
申请日：2004-07-27
申请人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
发明人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
IPC分类号： G11B11/00
CPC分类号： G11B7/0079 , G11B7/0037 , G11B7/007 , G11B19/00 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/1258 , G11B20/1403 , G11B2020/10981
摘要： An optical disk apparatus comprising a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time. The optical disk apparatus comprises a selector to switch over the control systems, and area dividing means to manage the divided areas, and while switching over CAV control and CLV control, records data, and varies the divided areas or the number of divided areas in CAV control according to recording capacities, so that lower power consumption and higher-speed access can be realized.
摘要翻译：一种光盘装置，包括：数字化来自光盘的再现信号的再现信号检测器;用于产生用于再现数据的同步时钟信号的宽带同步时钟信号发生器;用于处理信号的信号处理器;以及盘旋转控制器，通过根据盘的再现位置切换控制模式来控制光盘，即，在同步时钟信号发生器允许再现信号的范围内，使用与当前旋转速度相同的恒定旋转速度进行CAV控制进行拉入同步，并执行CLV控制，使得线速度恒定，以使超过拉入同步范围的范围内的转数的拉入使能变化最小化，由此布置当光学拾取器的再现位置时主轴电动机转数的变化量变化最小化，从而进一步降低功耗和访问时间。光盘装置包括切换控制系统的选择器和用于管理分割区域的区域划分装置，并且在切换CAV控制和CLV控制时，记录数据，并且改变CAV中的分割区域或分割区域的数量根据记录容量进行控制，可实现更低的功耗和更高速的存取。

3. 再颁专利

USRE38704E1 Optical disk recording method employing a plurality of recording areas and apparatus therefor 有权
标题翻译：采用多个记录区域的光盘记录方法及其装置
公开(公告)号：USRE38704E1
公开(公告)日：2005-02-15
申请号：US09987720
申请日：2001-11-15
申请人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
发明人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
IPC分类号： G11B19/28 , G11B7/0037 , G11B7/007 , G11B7/085 , G11B19/00 , G11B19/02 , G11B19/12 , G11B19/247 , G11B19/26 , G11B20/10 , G11B20/12 , G11B20/14 , G11B5/09
CPC分类号： G11B7/0079 , G11B7/0037 , G11B7/007 , G11B19/00 , G11B19/26 , G11B19/28 , G11B20/10 , G11B20/1258 , G11B20/1403 , G11B2020/10981
摘要： An optical disk apparatus comprising a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time. The optical disk apparatus comprises a selector to switch over the control systems, and area dividing means to manage the divided areas, and while switching over CAV control and CLV control, records data, and varies the divided areas or the number of divided areas in CAV control according to recording capacities, so that lower power consumption and higher-speed access can be realized.

4. 发明授权

US5986988A Optical disk recording method employing a plurality of recording areas and apparatus therefor 失效
标题翻译：采用多个记录区域的光盘记录方法及其装置
公开(公告)号：US5986988A
公开(公告)日：1999-11-16
申请号：US34909
申请日：1998-03-04
申请人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
发明人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
IPC分类号： G11B19/28 , G11B7/0037 , G11B7/007 , G11B7/085 , G11B19/00 , G11B19/02 , G11B19/12 , G11B19/247 , G11B19/26 , G11B20/10 , G11B20/12 , G11B20/14 , G11B5/09
CPC分类号： G11B7/0079 , G11B19/00 , G11B19/26 , G11B19/28 , G11B20/10 , G11B7/007 , G11B20/1258 , G11B20/1403 , G11B2020/10981 , G11B7/0037
摘要： An optical disk apparatus comprising a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time. The optical disk apparatus comprises a selector to switch over the control systems, and area dividing means to manage the divided areas, and while switching over CAV control and CLV control, records data, and varies the divided areas or the number of divided areas in CAV control according to recording capacities, so that lower power consumption and higher-speed access can be realized.
摘要翻译：一种光盘装置，包括：数字化来自光盘的再现信号的再现信号检测器;用于产生用于再现数据的同步时钟信号的宽带同步时钟信号发生器;用于处理信号的信号处理器;以及盘旋转控制器，通过根据盘的再现位置切换控制模式来控制光盘，即，在同步时钟信号发生器允许再现信号的范围内，使用与当前旋转速度相同的恒定旋转速度进行CAV控制进行拉入同步，并执行CLV控制，使得线速度恒定，以使超过拉入同步范围的范围内的转数的拉入使能变化最小化，由此布置当光学拾取器的再现位置时主轴电动机转数的变化量变化最小化，从而进一步降低功耗和访问时间。光盘装置包括切换控制系统的选择器和用于管理分割区域的区域划分装置，并且在切换CAV控制和CLV控制时，记录数据，并且改变CAV中的分割区域或分割区域的数量根据记录容量进行控制，可以实现更低的功耗和更高速的存取。

5. 发明授权

US5751676A Optical disk recording and reproducing method and apparatus therefor 失效
标题翻译：光盘记录和再现方法及其装置
公开(公告)号：US5751676A
公开(公告)日：1998-05-12
申请号：US668770
申请日：1996-06-24
申请人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
发明人： Taizou Kusano , Yoshiro Kashiwabara , Yasuhiro Wada , Keisuke Umeda
IPC分类号： G11B19/28 , G11B7/0037 , G11B7/007 , G11B7/085 , G11B19/00 , G11B19/02 , G11B19/12 , G11B19/247 , G11B19/26 , G11B20/10 , G11B20/12 , G11B20/14 , G11B5/09
CPC分类号： G11B7/0079 , G11B19/00 , G11B19/26 , G11B19/28 , G11B20/10 , G11B7/007 , G11B20/1258 , G11B20/1403 , G11B2020/10981 , G11B7/0037
摘要： An optical disk apparatus which can with high-speed access and low power consumption reproduce data recorded thereon at constant linear velocity and which, if used as a writable type, can record data by using CAV control and CLV control in combination, with much improved high-speed access and low power consumption. The optical disk apparatus comprises a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time.
摘要翻译：具有高速存取和低功耗的光盘装置可以以恒定的线速度再现记录在其上的数据，并且如果用作可写类型，则可以通过组合使用CAV控制和CLV控制来记录数据，具有大大提高的高速度接近和低功耗。该光盘装置包括：再现信号检测器，其对来自光盘的再现信号进行数字化;宽带同步时钟信号发生器，用于产生用于再现数据的同步时钟信号;信号处理器，用于处理信号;以及盘旋转控制器，通过根据盘的再现位置切换控制模式来控制光盘，即，在同步时钟信号发生器允许再现信号的范围内，使用与当前旋转速度相同的恒定旋转速度进行CAV控制进行拉入同步，并执行CLV控制，使得线速度恒定，以使超过拉入同步范围的范围内的转数的拉入使能变化最小化，由此布置当光学拾取器的再现位置时主轴电动机转数的变化量变化最小化，从而进一步降低功耗和访问时间。

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