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公开(公告)号：US07242551B2
公开(公告)日：2007-07-10
申请号：US11193942
申请日：2005-07-28
CPC分类号： G11B5/553 , G11B5/59633
摘要： Embodiments of the invention provide techniques to inspect the track pitch of a magnetic disk. In one embodiment, the track pitch is inspected using the servo information that was written onto the magnetic disk. A PES gain is set to be PG0. A head is moved to a position K near the position where control is to switch between MPES and SPES, and then MPES and SPES are calculated using reproduced burst signals and PG0. The quantity of change in the inspection HSP which is a half-servo pitch of an inspection-related burst pattern, with respect to an ideal half-servo pitch, is detected by calculating PESΔ, the difference between the MPES and SPES at position K. The track pitch is thus judged whether it is abnormal.
摘要翻译： 本发明的实施例提供了检查磁盘的磁道间距的技术。 在一个实施例中，使用写入磁盘的伺服信息来检查轨道间距。 PES增益被设置为PG0。头部移动到控制在MPES和SPES之间切换的位置附近的位置K，然后使用再现的脉冲串信号和PG0计算MPES和SPES。变化量 通过计算PESDelta（位置K处的MPES和SPES之间的差）来检测作为相对于理想半伺服间距的与检查相关的突发图案的半伺服间距的检查HSP。轨迹间距是 从而判断是否异常。
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公开(公告)号：US20060023344A1
公开(公告)日：2006-02-02
申请号：US11193942
申请日：2005-07-28
CPC分类号： G11B5/553 , G11B5/59633
摘要： Embodiments of the invention provide techniques to inspect the track pitch of a magnetic disk. In one embodiment, the track pitch is inspected using the servo information that was written onto the magnetic disk. A PES gain is set to be PG0. A head is moved to a position K near the position where control is to switch between MPES and SPES, and then MPES and SPES are calculated using reproduced burst signals and PG0. The quantity of change in the inspection HSP which is a half-servo pitch of an inspection-related burst pattern, with respect to an ideal half-servo pitch, is detected by calculating PESΔ, the difference between the MPES and SPES at position K. The track pitch is thus judged whether it is abnormal.
摘要翻译： 本发明的实施例提供了检查磁盘的磁道间距的技术。 在一个实施例中，使用写入磁盘的伺服信息来检查轨道间距。 PES增益被设置为PG0。头部移动到控制在MPES和SPES之间切换的位置附近的位置K，然后使用再现的脉冲串信号和PG0计算MPES和SPES。变化量 通过计算PESDelta（位置K处的MPES和SPES之间的差）来检测作为相对于理想半伺服间距的与检查相关的突发图案的半伺服间距的检查HSP。轨迹间距是 从而判断是否异常。
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3.发明授权Method and apparatus for indicating start of servo information on a recording medium 失效用于在记录介质上指示启动伺服信息的方法和装置
公开(公告)号：US5812338A
公开(公告)日：1998-09-22
申请号：US649578
申请日：1996-05-17
申请人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
发明人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
CPC分类号： G11B21/083 , G11B21/085 , G11B5/553 , G11B5/59655 , G11B5/59688
摘要： A disk and a disk drive having a servo start mark for identifying a servo-information start position recorded on the disk is provided. The servo start mark has a plurality of bit patterns unused for other areas in servo information. A method for identifying the position of a signal transducer on a disk is also provided in which it is judged that the signal transducer is present at a predetermined position even if an error is present and the error is a one-bit error. This is accomplished by assuming that the position is correct when the following conditions are confirmed: (a) a parity error occurs in a read servo-information bit pattern and (b) read servo-information bit pattern does not coincide with servo information of an adjacent track.
摘要翻译： 提供具有用于识别记录在盘上的伺服信息开始位置的伺服起始标记的盘和盘驱动器。 伺服起始标记对于伺服信息中的其他区域具有未使用的多个位模式。 还提供了用于识别盘上的信号换能器的位置的方法，其中即使存在错误并且错误是一位错误，也可以判断信号换能器存在于预定位置。 这是通过假设当确定以下条件时位置是正确的：（a）在读取伺服信息位模式中发生奇偶校验错误，（b）读取伺服信息位模式与伺服信息位模式的伺服信息不一致 相邻轨道。
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公开(公告)号：US06236527B1
公开(公告)日：2001-05-22
申请号：US09103758
申请日：1998-06-24
申请人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
发明人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
IPC分类号： G11B2102
摘要： A disk drive with means to prevent accidental landing of a head/slider on the disk surface is described. In one embodiment a shock sensor is provided to sense external shocks received by the mechanism. During loading (positioning) of the actuator bearing the head/slider over the disk, if a shock is sensed, loading is stopped and an immediate unloading is performed to return the actuator to the withdrawn position. In another embodiment the unload operation is performed when the rotational speed of the disk is changed. In another embodiment the unload operation is performed when the rotational speed of the disk drops below a threshold. A circuit and method for detecting when the rotational speed of the disk drops below a threshold is also provided. The unloading in the various embodiments may be performed using velocity control or without velocity control.
摘要翻译： 描述了具有防止头/滑块在盘表面上意外着落的装置的磁盘驱动器。 在一个实施例中，提供了一种震动传感器来感测由机构接收的外部冲击。 在将头/滑块轴承到盘上的执行器的装载（定位）期间，如果感测到冲击，则停止加载，并立即执行卸载以将执行器返回到撤回位置。 在另一个实施例中，当盘的旋转速度改变时执行卸载操作。 在另一个实施例中，当盘的转速下降到阈值以下时，执行卸载操作。 还提供了一种用于检测盘的转速何时下降到阈值以下的电路和方法。 各种实施例中的卸载可以使用速度控制或无速度控制来执行。
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5.发明授权公开(公告)号：US06229663B1
公开(公告)日：2001-05-08
申请号：US09102971
申请日：1998-06-22
申请人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
发明人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
IPC分类号： G11B2112
摘要： The present invention provides a disk drive, a loading/unloading apparatus, and a method for controlling the apparatus, capable of improving the reliability of data by performing stable speed control. A disk drive comprises a VCM spindle driver for rotating a disk, a magnetic head, an actuator mechanism for moving a head slider having the magnetic head to a position above the surface of the magnetic disk and an unloaded position, a ramp block, and a CPU/HDC for performing the speed control of an actuator and the calibration control for detecting the offset and dynamic range of an AD converter before the speed control and controlling the operation for reading or writing data from or into the disk, which increases a rectangular current value to be applied to a voice coil while successively changing codes, measures an offset in accordance with the AD converter value for each current value, and moreover measures a dynamic range by deciding a nonlinear area when the difference between the expected value and measured value of the AD converter becomes a predetermined value or more.
摘要翻译： 本发明提供一种磁盘驱动器，装载/卸载装置以及用于控制装置的方法，能够通过执行稳定的速度控制来提高数据的可靠性。 磁盘驱动器包括用于旋转磁盘的VCM主轴驱动器，磁头，用于将具有磁头的磁头滑块移动到磁盘表面上方的位置的致动机构，以及卸载位置，斜坡块和 用于执行致动器的速度控制的CPU / HDC和用于在速度控制之前检测AD转换器的偏移和动态范围的校准控制，并且控制用于从盘读取或写入数据的操作，这增加了矩形电流 在连续更改代码的同时应用于音圈的值，根据每个当前值的AD转换器值测量偏移量，并且当预期值和测量值之间的差值决定非线性区域时，测量动态范围 AD转换器变为预定值以上。
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6.发明授权Head mechanism control apparatus, disk drive, and head unload control method 失效头机构控制装置，磁盘驱动器和磁头卸载控制方法
公开(公告)号：US6108157A
公开(公告)日：2000-08-22
申请号：US105901
申请日：1998-06-26
申请人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara
发明人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara
摘要： The invention relates to a head mechanism control apparatus for magnetic recording device which ensures that the transducer head has been unloaded in a head unloading operation. A head slider having a transducer head is mounted on a head arm and is unloaded from the disk by the swinging of the head arm. The retract position is at the limit portion of the swingable range of the head arm. When the head slider is successfully unloaded to the retract position, a drive force applied to the head arm in the unload direction causes little movement of the head arm. After an unloading is performed, a position check drive force is applied to the head arm and the moving speed of the head slider is detected. Based on the moving speed, it is judged whether the head slider has been unloaded to the retract position. If the head slider has not been unloaded to the retract position, re-unloading is performed for moving the head slider to the retract position.
摘要翻译： 本发明涉及一种用于磁记录装置的磁头机构控制装置，其确保在磁头卸载操作中已经卸载了传感器头。 具有换能器头的头部滑块安装在头臂上，并通过头臂的摆动从盘上卸载。 缩回位置在头臂的摆动范围的极限部分。 当头滑块成功地卸载到缩回位置时，在卸载方向上施加到头臂的驱动力导致头臂几乎没有移动。 在执行卸载之后，向头臂施加位置检查驱动力，并且检测磁头滑块的移动速度。 基于移动速度，判断磁头滑块是否卸载到缩回位置。 如果磁头滑块未卸载到缩回位置，则执行重新卸载以将磁头滑块移动到缩回位置。
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7.发明授权公开(公告)号：US08873344B2
公开(公告)日：2014-10-28
申请号：US13199500
申请日：2011-08-31
申请人： Hiroshi Shimizu , Kazumi Sakumoto , Kenji Ogasawara , Kosuke Yamamoto , Keishi Honmura , Saburo Manaka , Akira Takakura
发明人： Hiroshi Shimizu , Kazumi Sakumoto , Kenji Ogasawara , Kosuke Yamamoto , Keishi Honmura , Saburo Manaka , Akira Takakura
摘要： A power consumption control device includes a power consumption control unit that receives the output potential of a photovoltaic cell generating an electromotive force, receives the output potential of a secondary battery charged by the electromotive force of the photovoltaic cell, causes a timepiece device to transition to a power saving state where a clock operation of measuring time is stopped when the output potential difference of the secondary battery is not greater than a predetermined threshold value, and the secondary battery is in a non-charging state indicating a state where the output potential difference of the photovoltaic cell is not greater than the output potential difference of the secondary battery.
摘要翻译： 功率消耗控制装置包括功率消耗控制单元，其接收产生电动势的光伏电池的输出电位，接收由光伏电池的电动势充电的二次电池的输出电位，使钟表器件转变为 当二次电池的输出电位差不大于预定阈值时测量时间的时钟操作停止的节电状态，并且二次电池处于非充电状态，指示输出电位差 的光电池的输出电位差不大于二次电池的输出电位差。
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公开(公告)号：US08406086B2
公开(公告)日：2013-03-26
申请号：US12932126
申请日：2011-02-17
申请人： Hiroshi Shimizu , Tomohiro Ihashi , Kenji Ogasawara , Kazuo Kato , Kazumi Sakumoto , Akira Takakura , Eriko Noguchi , Takanori Hasegawa , Keishi Honmura , Saburo Manaka , Kosuke Yamamoto
发明人： Hiroshi Shimizu , Tomohiro Ihashi , Kenji Ogasawara , Kazuo Kato , Kazumi Sakumoto , Akira Takakura , Eriko Noguchi , Takanori Hasegawa , Keishi Honmura , Saburo Manaka , Kosuke Yamamoto
CPC分类号： G04C9/00
摘要： An electronic timepiece can reduce a burden imposed on a user who performs a manipulation for correcting the positional displacement of a pointer when a position of the pointer is displaced due to the demonstration of the pointer movement. The electronic timepiece includes: a pointer which is rotated in a first direction based on a manipulation signal corresponding to a manipulation from the outside; and a control part which performs the demonstration of the pointer movement in which the pointer is rotated in a second direction opposite to the first direction and the first direction, wherein the pointer is positioned at a position where a rotational angle in the first direction from a preset reference position is smaller than a rotational angle in a second direction from the reference position.
摘要翻译： 当指针的位置由于指针移动的演示而移位时，电子钟表可以减轻执行用于校正指针的位置偏移的操作的用户的负担。 电子钟表包括：基于与外部的操作相对应的操作信号在第一方向上旋转的指针; 以及控制部件，其执行指示器移动的演示，其中指针在与第一方向和第一方向相反的第二方向上旋转，其中指示器位于从第一方向的旋转角度从 预设基准位置小于从基准位置开始的第二方向上的旋转角度。
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公开(公告)号：US20120182840A1
公开(公告)日：2012-07-19
申请号：US13374772
申请日：2012-01-12
申请人： Shotaro Kamiyama , Kenji Ogasawara , Saburo Manaka , Keishi Honmura , Kazumi Sakumoto , Hiroshi Shimizu , Kosuke Yamamoto
发明人： Shotaro Kamiyama , Kenji Ogasawara , Saburo Manaka , Keishi Honmura , Kazumi Sakumoto , Hiroshi Shimizu , Kosuke Yamamoto
摘要： A motor drive device includes a charging detection and reverse current prevention portion and a pulse selection control portion. The charging detection and reverse current prevention portion detects a charging state of a secondary battery that is charged by an electromotive force of a solar battery, the charging state indicating whether the secondary battery is being charged. The pulse selection control portion causes a first drive pulse for driving a motor to be generated and, in a case where the charging state that is detected by the charging detection and reverse current prevention portion is different after the first drive pulse has been output from what it was before the first drive pulse was output, causes a second drive pulse for driving the motor to be generated.
摘要翻译： 电动机驱动装置包括充电检测和反向电流防止部分和脉冲选择控制部分。 充电检测和反向电流防止部分检测由太阳能电池的电动势充电的二次电池的充电状态，指示二次电池是否正在充电的充电状态。 脉冲选择控制部分产生用于驱动电动机的第一驱动脉冲，并且在从第一驱动脉冲从第一驱动脉冲输出之后由充电检测和反向电流防止部分检测的充电状态不同的情况下 在第一驱动脉冲输出之前，产生用于驱动电动机的第二驱动脉冲。
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10.发明申请公开(公告)号：US20120057435A1
公开(公告)日：2012-03-08
申请号：US13199495
申请日：2011-08-31
申请人： Keishi Honmura , Takanori Hasegawa , Akira Takakura , Kenji Ogasawara , Kazumi Sakumoto , Hiroshi Shimizu , Saburo Manaka , Kosuke Yamamoto
发明人： Keishi Honmura , Takanori Hasegawa , Akira Takakura , Kenji Ogasawara , Kazumi Sakumoto , Hiroshi Shimizu , Saburo Manaka , Kosuke Yamamoto
摘要： The invention is intended to allow a motor to be driven normally even when an output voltage of a primary power source unit varies. A motor drive control unit configured to attenuate a charge of a secondary cell by an electromotive force of a solar cell to a level lower than the charge at that moment before driving the motor, and then intensify the charge of a level higher than the charge at that moment after having driven the motor is provided.
摘要翻译： 本发明旨在允许电动机正常驱动，即使主电源单元的输出电压变化。 一种电动机驱动控制单元，被配置为通过太阳能电池的电动势将二次电池的电荷衰减到低于在驱动电动机之前的电荷的电平，并且然后将电荷高于电荷的电荷 提供驱动马达后的那一刻。
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