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1. 发明授权

US07085200B2 Stepping motor controlling method and disk apparatus 失效
标题翻译：步进电机控制方法和磁盘设备
公开(公告)号：US07085200B2
公开(公告)日：2006-08-01
申请号：US10962879
申请日：2004-10-12
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi
IPC分类号： G11B21/08
CPC分类号： G11B7/08529 , G11B7/08582
摘要： A disk apparatus includes a pick-up for reading/writing signals from/on a disk; a pick-up base provided with the pick-up; a traverse motor for moving the pick-up in a radial direction of said disk; a feed screw rotated by the traverse motor and provided with a thread groove on its periphery; a rack having a fixing portion fixed to the pick-up base and a nut portion engaged with the thread groove; a guiding mechanism for guiding the pick-up movably in a radial direction of the disk; and a cantilever parallel spring for connecting the fixing portion to the nut portion of the rack, displaceably in a radial direction of the feed screw.
摘要翻译：磁盘装置包括用于从盘读取/写入信号的拾取器; 提供接件的接机座; 用于沿所述盘的径向方向移动拾取器的横动马达; 由横动马达旋转并在其周边设置有螺纹槽的进给螺杆; 具有固定到拾取基座的固定部分和与螺纹槽啮合的螺母部分的齿条; 引导机构，用于沿所述盘的径向方向可移动地引导所述拾取器; 以及用于将固定部分连接到齿条的螺母部分的悬臂平行弹簧，在进给螺杆的径向上可移动。

2. 发明授权

US06654321B2 Stepping motor control method and disk drive apparatus 失效
标题翻译：步进电机控制方法和磁盘驱动装置
公开(公告)号：US06654321B2
公开(公告)日：2003-11-25
申请号：US09836932
申请日：2001-04-18
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
IPC分类号： G11B700
CPC分类号： G11B7/08529 , G11B7/08582
摘要： In a method of the present invention for controlling stepping motor, the stepping motor driving current is increased or reduced at a fixed inclination in proportion to the time to control the stepping motor effectively, and, a stepping motor driving current pattern is changed by ¼ cycle or more to synchronize the state of excitation between the stepping motor driving means and the stepping motor to control the pick-up very accurately. In addition, the disk apparatus of the present invention, which uses a stepping motor is provided with a pulse rate pattern variable means, a pulse rate change proportion measuring means, and a driving voltage variable means, and when the pulse rate and the pulse rate change proportion are low, the driving voltage amplitude is lowered to reduce surplus torque generation in the stepping motor.
摘要翻译：在用于控制步进电动机的本发明的方法中，与有效控制步进电机的时间成比例地，步进电动机驱动电流以固定的倾斜度增加或减小，并且步进电机驱动电流模式改变¼周期以上，以使步进电动机驱动装置和步进电机之间的激励状态同步，以非常精确地控制拾取。另外，本发明的采用步进电动机的盘装置具有脉率模式可变装置，脉搏变化比例测量装置和驱动电压可变装置，当脉搏率和脉率变化比例低，驱动电压振幅降低，以减少步进电机中的过剩转矩产生。

3. 发明授权

US06249495B1 Stepping motor control method and disk drive apparatus 失效
标题翻译：步进电机控制方法和磁盘驱动装置
公开(公告)号：US06249495B1
公开(公告)日：2001-06-19
申请号：US09031281
申请日：1998-02-26
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
IPC分类号： G11B700
CPC分类号： G11B7/08529 , G11B7/08582
摘要： In a method of the present invention for controlling stepping motor, the stepping motor driving current is increased or reduced at a fixed inclination in proportion to the time to control the stepping motor effectively, and, a stepping motor driving current pattern is changed by 1/4 cycle or over to synchronize the state of excitation between the stepping motor driving means and the stepping motor to control the pick-up very accurately. In addition, the disk apparatus of the present invention, which uses a stepping motor is provided with a pulse rate pattern variable means, a pulse rate change proportion measuring means, and a driving voltage variable means, and when the pulse rate and the pulse rate change proportion are low, the driving voltage amplitude is lowered to reduce surplus torque generation in the stepping motor.
摘要翻译：在用于控制步进电动机的本发明的方法中，步进电动机驱动电流以与控制步进电动机有效的时间成比例的固定倾斜度增大或减小，并且步进电动机驱动电流模式改变1 / 4个周期以上，以使步进电机驱动装置和步进电机之间的激励状态同步，以非常准确地控制拾取。另外，本发明的采用步进电动机的盘装置具有脉率模式可变装置，脉搏变化比例测量装置和驱动电压可变装置，当脉搏率和脉率变化比例低，驱动电压振幅降低，以减少步进电机中的过剩转矩产生。

4. 发明授权

US07106668B2 Disk drive apparatus 失效
标题翻译：磁盘驱动装置
公开(公告)号：US07106668B2
公开(公告)日：2006-09-12
申请号：US10963243
申请日：2004-10-12
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
IPC分类号： G11B21/08
CPC分类号： G11B7/08529 , G11B7/08582
摘要： A disk drive apparatus for a disk having helically-formed or concentric circle-like formed tracks includes a spindle motor for controlling a rotation of the disk; a pick-up device for recording or reproducing information on or from the disk; a stepping motor for moving the pick-up device in a radial direction of the disk in accordance with a drive current; a system controller for tracking a rotation speed of the spindle motor and for outputting command signals according to the rotation speed of the spindle motor; and a stepping motor controller for controlling the stepping motor by changing a slope of a rising part and a falling part of a waveform of the drive current of the stepping motor according to the command signals.
摘要翻译：具有螺旋形状或同心圆形的轨道的盘的盘驱动装置包括用于控制盘的旋转的主轴电动机; 用于在盘上记录或再现信息的拾取装置; 步进电动机，用于根据驱动电流沿着盘的径向方向移动拾取装置; 系统控制器，用于跟踪主轴电机的转速，并根据主轴电动机的转速输出指令信号; 以及步进电动机控制器，其通过根据指令信号改变步进电动机的驱动电流的波形的上升部分和下降部分的斜率来控制步进电动机。

5. 发明申请

US20050083800A1 Disk drive apparatus 失效
标题翻译：磁盘驱动装置
公开(公告)号：US20050083800A1
公开(公告)日：2005-04-21
申请号：US10963243
申请日：2004-10-12
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi , Masanori Harui , Kazuhiko Kouno
IPC分类号： G11B7/085 , G11B7/00
CPC分类号： G11B7/08529 , G11B7/08582
摘要： A disk drive apparatus for a disk having helically-formed or concentric circle-like formed tracks includes a spindle motor for controlling a rotation of the disk; a pick-up device for recording or reproducing information on or from the disk; a stepping motor for moving the pick-up device in a radial direction of the disk in accordance with a drive current; a system controller for tracking a rotation speed of the spindle motor and for outputting command signals according to the rotation speed of the spindle motor; and a stepping motor controller for controlling the stepping motor by changing a slope of a rising part and a falling part of a waveform of the drive current of the stepping motor according to the command signals.
摘要翻译：具有螺旋形状或同心圆形的轨道的盘的盘驱动装置包括用于控制盘的旋转的主轴电动机; 用于在盘上记录或再现信息的拾取装置; 步进电动机，用于根据驱动电流沿着盘的径向方向移动拾取装置; 系统控制器，用于跟踪主轴电机的转速，并根据主轴电动机的转速输出指令信号; 以及步进电动机控制器，其通过根据指令信号改变步进电动机的驱动电流的波形的上升部分和下降部分的斜率来控制步进电动机。

6. 发明申请

US20050047290A1 Stepping motor controlling method and disk apparatus 失效
标题翻译：步进电机控制方法和磁盘设备
公开(公告)号：US20050047290A1
公开(公告)日：2005-03-03
申请号：US10962879
申请日：2004-10-12
申请人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi
发明人： Takanori Okada , Shuichi Yoshida , Masaharu Imura , Kiyoshi Masaki , Kazuhiro Mihara , Tsutomu Kai , Noritaka Akagi
IPC分类号： G11B7/085 , G11B7/00
CPC分类号： G11B7/08529 , G11B7/08582
摘要： A disk apparatus includes a pick-up for reading/writing signals from/on a disk; a pick-up base provided with the pick-up; a traverse motor for moving the pick-up in a radial direction of said disk; a feed screw rotated by the traverse motor and provided with a thread groove on its periphery; a rack having a fixing portion fixed to the pick-up base and a nut portion engaged with the thread groove; a guiding mechanism for guiding the pick-up movably in a radial direction of the disk; and a cantilever parallel spring for connecting the fixing portion to the nut portion of the rack, displaceably in a radial direction of the feed screw.
摘要翻译：磁盘装置包括用于从盘读取/写入信号的拾取器; 提供接件的接机座; 用于沿所述盘的径向方向移动拾取器的横动马达; 由横动马达旋转并在其周边设置有螺纹槽的进给螺杆; 具有固定到拾取基座的固定部分和与螺纹槽啮合的螺母部分的齿条; 引导机构，用于沿所述盘的径向方向可移动地引导所述拾取器; 以及用于将固定部分连接到齿条的螺母部分的悬臂平行弹簧，在进给螺杆的径向方向上可移动。

7. 发明授权

US06434096B1 Optical information recording/reproducing device 有权
标题翻译：光信息记录/再现装置
公开(公告)号：US06434096B1
公开(公告)日：2002-08-13
申请号：US09674023
申请日：2000-10-24
申请人： Noritaka Akagi , Tsutomu Kai , Shuichi Yoshida , Kiyoshi Masaki , Teruyuki Naka , Yasuo Kashiwagi , Isao Takemoto
发明人： Noritaka Akagi , Tsutomu Kai , Shuichi Yoshida , Kiyoshi Masaki , Teruyuki Naka , Yasuo Kashiwagi , Isao Takemoto
IPC分类号： G11B700
CPC分类号： G11B7/0901 , G11B7/094 , G11B7/0941 , G11B7/0956
摘要： In order to correct the change in the offset and amplitude of a tracking error signal because of the change in the position of an object lens from the center of an optical pickup, the offset amount and amplitude value of the tracking error signal with respect to the displacement amount of the object lens from the center of the optical pickup are checked beforehand, and the displacement amount of the object lens is estimated on the basis of a tracking correction signal by using an object lens displacement observer. An offset detection section and an amplitude detection section detect the offset amount and amplitude value of the tracking error signal respectively, and the tracking error signal is corrected by an offset correction circuit and an amplitude correction circuit on the basis of the offset amount and amplitude value having been checked beforehand so that the offset amount and the amplitude value of the tracking error signal become identical to those obtained when the displacement amount of the object lens is zero. In addition, the offset of the tilt error signal depending on the movement direction of the optical pickup 2 is detected and recorded beforehand, and the tilt error signal is corrected on the basis of the above-mentioned recorded offset when a rotation direction detection section detects the moving direction of the optical pickup.
摘要翻译：为了校正由于物镜的位置从光学拾取器的中心的变化引起的跟踪误差信号的偏移和振幅的变化，跟踪误差信号的偏移量和振幅值相对于预先检查物镜从光学拾取器的中心的位移量，并且通过使用物镜位移观察器基于跟踪校正信号来估计物镜的位移量。偏移检测部分和振幅检测部分分别检测跟踪误差信号的偏移量和振幅值，并且基于偏移量和振幅值由偏移校正电路和振幅校正电路校正跟踪误差信号预先检查，使得跟踪误差信号的偏移量和振幅值变得与当物镜的位移量为零时获得的偏移量和振幅值相同。此外，预先检测并记录与光学拾取器2的移动方向相对应的倾斜误差信号的偏移，并且当旋转方向检测部检测到时，基于上述记录偏移来校正倾斜误差信号光学拾取器的移动方向。

8. 发明授权

US06711116B2 Balanced disk drive apparatus 有权
标题翻译：平衡磁盘驱动器
公开(公告)号：US06711116B2
公开(公告)日：2004-03-23
申请号：US10179747
申请日：2002-06-24
申请人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa
发明人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa
IPC分类号： G11B3308
CPC分类号： G11B33/08 , F16F15/363 , G11B17/0282 , G11B17/0284 , G11B19/2018 , G11B19/2027
摘要： To provide a disk drive apparatus that suppresses undesirable vibrations due to the unbalance of a loaded disk and achieves high-speed data transfer, the disk drive apparatus of the present invention comprises a hollow ring member (23) that contains therein a plurality of spherical bodies (24) or a liquid (26) to form a balancer, wherein the balancer is formed so as to be rotatable in integral fashion with a disk, thereby suppressing the vibrations generated when an unbalanced disk is rotated at high speed.
摘要翻译：为了提供一种能够抑制由于加载盘的不平衡引起的不期望的振动并实现高速数据传送的磁盘驱动装置，本发明的磁盘驱动装置包括一个中空环件（23），其中包含多个球体（24）或液体（26）以形成平衡器，其中平衡器形成为与盘一体地旋转，从而抑制当不平衡盘高速旋转时产生的振动。

9. 发明授权

US07051346B2 Disk drive apparatus having particular clamping device 有权
标题翻译：具有特定夹紧装置的盘驱动装置
公开(公告)号：US07051346B2
公开(公告)日：2006-05-23
申请号：US10718119
申请日：2003-11-19
申请人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Teruyuki Naka , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa , Makoto Maruoka , Shinichiro Obayashi
发明人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Teruyuki Naka , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa , Makoto Maruoka , Shinichiro Obayashi
IPC分类号： G11B17/28
CPC分类号： G11B19/2018 , F16F15/08 , F16F15/363 , G11B17/022 , G11B17/0282 , G11B17/0284 , G11B17/038 , G11B19/2027 , G11B25/043 , G11B33/08
摘要： A disk drive includes a turntable and a clamper. The turntable and/or the clamper have four or more projections, each of which has predetermined height. The projections are arranged at positions for supporting/holding a mounted disk by using the four or more projections, wherein the projections are located at substantially equal intervals around a circumference of the turntable/clamper and the tips of the projections are substantially in the same plane.
摘要翻译：磁盘驱动器包括转台和夹持器。转盘和/或夹持器具有四个或更多个突起，每个突起具有预定的高度。通过使用四个或更多个突起，突起被布置在用于支撑/保持安装的盘的位置，其中突出部围绕转盘/夹持器的圆周以基本相等的间隔定位，并且突起的尖端基本上处于同一平面。

10. 发明授权

US06741544B1 Disk drive apparatus 有权
标题翻译：磁盘驱动装置
公开(公告)号：US06741544B1
公开(公告)日：2004-05-25
申请号：US09509231
申请日：2000-06-08
申请人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Teruyuki Naka , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa , Makoto Maruoka , Shinichiro Obayashi
发明人： Kiyoshi Masaki , Kazuhiro Mihara , Shuichi Yoshida , Teruyuki Naka , Sachio Fukuyama , Noriaki Urayama , Masaaki Kikugawa , Makoto Maruoka , Shinichiro Obayashi
IPC分类号： G11B1920
CPC分类号： G11B19/2018 , F16F15/08 , F16F15/363 , G11B17/022 , G11B17/0282 , G11B17/0284 , G11B17/038 , G11B19/2027 , G11B25/043 , G11B33/08
摘要： The present invention is intended to provide a disk drive apparatus capable of suppressing the occurrence of undesirable vibration due to the imbalance of a disk and capable of carrying out high-rate transfer, wherein a balancer is formed so as to accommodate a predetermined number of spherical bodies in a ring-shaped track portion having a predetermined shape, and this balancer is provided so as to be rotatable integrally and coaxially with the disk. In addition, in the disk drive apparatus of the present invention, the ring-shaped track of the balancer is divided into plural tracks by partition walls or the like, and a ball used as a balance member is disposed so as to be movable on each divided track. Furthermore, the disk drive apparatus of the present invention is configured so that the disk is held on both sides or one side thereof by using four or more projections or rubber sheets.
摘要翻译：本发明旨在提供一种磁盘驱动装置，其能够抑制由于盘的不平衡而引起的不希望的振动的发生并且能够执行高速传送，其中平衡器形成为容纳预定数量的球形具有预定形状的环形轨道部分中的主体，并且该平衡器设置成与盘一体地并且同轴地旋转。此外，在本发明的盘驱动装置中，平衡器的环形轨道被分隔壁等分成多个轨道，并且用作平衡构件的球设置成可在每个轨迹上移动分道。此外，本发明的盘驱动装置通过使用四个或更多个突起或橡胶片将盘固定在其两侧或一侧。

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