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11. 发明申请

US20090109567A1 SEEK CONTROL APPARATUS AND METHOD FOR GENERATING CONTROL DATA FOR SEEK CONTROL 有权
标题翻译： SEEK控制装置和用于产生用于SEEK控制的控制数据的方法
公开(公告)号：US20090109567A1
公开(公告)日：2009-04-30
申请号：US12257076
申请日：2008-10-23
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： There is provided a method for generating acceleration data used in feed-forward control of head seeking, wherein, a seek distance and one of a seek period and the count of samples are received; a weighting factor for the change rate of acceleration between adjacent sample times is determined respectively; and an optimum acceleration at each sample time is obtained by performing an optimization calculation that minimizes an objective function under a constraint condition based on variables representing accelerations at each sample time, either the seek period or the count of samples, and the seek distance.
摘要翻译：提供了一种用于生成用于头部寻找的前馈控制中使用的加速度数据的方法，其中，寻道距离和寻道周期中的一个以及样本计数被接收; 分别确定相邻采样时间之间的加速度变化率的权重因子; 并且通过执行最优化计算来获得每个采样时间的最佳加速度，所述优化计算使得在约束条件下使目标函数最小化，所述约束条件基于在每个采样时间，即寻找周期或采样计数以及寻找距离的表示加速度的变量。

12. 发明申请

US20090073600A1 POSITIONING CONTROL SYSTEM AND POSITIONING CONTROL METHOD 有权
标题翻译：定位控制系统和定位控制方法
公开(公告)号：US20090073600A1
公开(公告)日：2009-03-19
申请号：US12206105
申请日：2008-09-08
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： There is provided with a positioning control system including: a head moving unit; a position detecting unit detecting a head position at predetermined time intervals; an error detecting unit detecting a position error of the head for a target position; a disturbance detecting unit detecting a non-periodic disturbance; a modifying unit modifying a first position error signal corresponding to a first head position detected in a first rotation period based on a second position error signal corresponding to a second head position detected one period length before; and a feedback controller, wherein the modifying unit modifies the first signal after reducing an amplitude of the second position error signal when a detected timing of the second head position is included in a predetermined time range with respect to a detected timing of the non-periodic disturbance detected in a second rotation period which is one period before the first rotation period.
摘要翻译：提供了一种定位控制系统，包括：头移动单元; 位置检测单元，以预定的时间间隔检测头部位置; 检测针对目标位置的头部的位置误差的误差检测单元; 检测非周期性扰动的扰动检测单元; 修改单元，基于与检测到的一个周期长度之前的第二头部位置相对应的第二位置误差信号，修改与在第一旋转周期中检测到的第一头位置对应的第一位置误差信号; 以及反馈控制器，其中当相对于非周期性的检测到的定时在预定时间范围内包括检测到的第二头位置的定时时，修改单元在减小第二位置误差信号的幅度之后修改第一信号在第一旋转周期之前的一个周期的第二旋转周期中检测到干扰。

13. 发明授权

US08582230B2 Hard disk drive, method for estimating back electromotive force, and method for controlling velocity of head 有权
标题翻译：硬盘驱动器，用于估计反电动势的方法以及用于控制磁头速度的方法
公开(公告)号：US08582230B2
公开(公告)日：2013-11-12
申请号：US13232253
申请日：2011-09-14
申请人： Shigen Yasunaka , Shinji Takakura , Yoshiyuki Ishihara
发明人： Shigen Yasunaka , Shinji Takakura , Yoshiyuki Ishihara
IPC分类号： G11B21/02
CPC分类号： G11B5/5526 , G11B21/12
摘要： According to one embodiment, a hard disk drive includes a head, a voice coil motor, a driving circuit, an identification unit, a storage unit, and an estimation unit. The head is configured to perform write/read of information to a storage medium. The voice coil motor is configured to move the head. The driving circuit is configured to drive the voice coil motor, based on a command signal. The identification unit is configured to identify at least one parameter of a discrete-time model. The discrete-time model represents a transfer function from the command signal to a voltage drop quantity by an inductance of a coil of the voice coil motor. The storage unit is configured to store the parameter. The estimation unit is configured to estimate a back electromotive force of the coil, based on the discrete-time model including the parameter.
摘要翻译：根据一个实施例，硬盘驱动器包括头，音圈电机，驱动电路，识别单元，存储单元和估计单元。头被配置为执行向存储介质的信息的写入/读取。音圈电机被配置为移动头部。驱动电路被配置为基于命令信号来驱动音圈电机。识别单元被配置为识别离散时间模型的至少一个参数。离散时间模型表示通过音圈电机的线圈的电感从指令信号到电压降量的传递函数。存储单元被配置为存储参数。估计单元被配置为基于包括参数的离散时间模型来估计线圈的反电动势。

14. 发明申请

US20130070368A1 MAGNETIC DISK DEVICE AND CONTROLLING METHOD OF HEAD 审中-公开
标题翻译：磁盘设备及其控制方法
公开(公告)号：US20130070368A1
公开(公告)日：2013-03-21
申请号：US13424576
申请日：2012-03-20
申请人： Shinji Takakura , Shigen Yasunaka , Yoshiyuki Ishihara
发明人： Shinji Takakura , Shigen Yasunaka , Yoshiyuki Ishihara
IPC分类号： G11B21/02
CPC分类号： G11B21/12
摘要： A magnetic disk device includes a head, a coil, a drive circuit, a detector, a first calculation unit, a generation unit, a first estimation unit, and a control unit. The detector detects an inter-terminal voltage across the coil. The first calculation unit calculates a back electromotive force across the coil by the use of the inter-terminal voltage. The generation unit generates a target velocity as a reference value of a velocity of the head. The first estimation unit estimates a first velocity of the head and an error of the first velocity by the use of the back electromotive force. The first estimation unit estimates a second velocity for decreasing the error. The control unit calculates a control instruction to bring the second velocity close to the target velocity.
摘要翻译：磁盘装置包括头，线圈，驱动电路，检测器，第一计算单元，生成单元，第一估计单元和控制单元。检测器检测线圈两端的电压。第一计算单元通过使用端子间电压来计算跨线圈的反电动势。生成单元生成目标速度作为头部的速度的基准值。第一估计单元通过使用反电动势来估计头的第一速度和第一速度的误差。第一估计单元估计用于减小误差的第二速度。控制单元计算使第二速度接近目标速度的控制指令。

15. 发明申请

US20130030743A1 METHOD FOR IDENTIFYING HIGH-SPEED FREQUENCY RESPONSE OF MULTIRATE SYSTEM AND APPARATUS THEREFOR 有权
标题翻译：识别多路复用系统高速响应的方法及其设备
公开(公告)号：US20130030743A1
公开(公告)日：2013-01-31
申请号：US13418460
申请日：2012-03-13
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G01R23/16 , G06F19/00
CPC分类号： G11B20/10009 , G11B5/5521
摘要： There is provided with a method of identifying a frequency response of a controlled object at a sampling period of control input in a multiplexed-input multirate system in which a sampling period of control output is even “P” multiples of the sampling period of control input wherein the control object is represented by FIR filter, an M-series signal corresponding to an acquisition data length Mp×P−1 is generated, the Mp indicates a period of the M-series signal, an impulse response value of the controlled object is estimated based on the M-series signal and output data outputted from the controlled object by inputting the M-series signal thereto, and the frequency response of the controlled object is identified by performing a discrete Fourier transform on the impulse response value.
摘要翻译：提供了一种在多路复用输入多速率系统中的控制输入的采样周期识别受控对象的频率响应的方法，其中控制输出的采样周期甚至控制输入的采样周期的P倍数，其中控制对象由FIR滤波器表示，产生与采集数据长度Mp×P-1对应的M序列信号，Mp表示M系列信号的周期，基于受控对象的脉冲响应值进行估计通过向其输入M系列信号对从M受控对象输出的M序列信号和输出数据，通过对脉冲响应值执行离散付里叶变换来识别受控对象的频率响应。

16. 发明授权

US07848050B2 Positioning control system and method therefor 有权
标题翻译：定位控制系统及其方法
公开(公告)号：US07848050B2
公开(公告)日：2010-12-07
申请号：US12393260
申请日：2009-02-26
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/59622
摘要： There is provided with a positioning control system which includes: a head moving unit configured to move a head for recording or reproducing information with respect to a disk capable of recording information; a position detecting unit configured to detect a position of the head; an error detecting unit configured to detect a position error signal of a detected head position with respect to a predetermined target position; a compensation controller configured to generate control input by performing phase lead compensation and phase delay compensation for the position error signal and supply the control input to the head moving unit; and a gain controller configured to control at least one of gains the phase lead compensation and the phase delay compensation based on frequency components contained in the position error signal and an amplitude of the position error signal.
摘要翻译：提供了一种定位控制系统，其包括：头部移动单元，被配置为相对于能够记录信息的盘移动用于记录或再现信息的头部; 位置检测单元，被配置为检测头部的位置; 错误检测单元，被配置为检测相对于预定目标位置的检测到的头位置的位置误差信号; 补偿控制器，被配置为通过对位置误差信号执行相位超前补偿和相位延迟补偿来产生控制输入，并将控制输入提供给头部移动单元; 以及增益控制器，被配置为基于位置误差信号中包含的频率分量和位置误差信号的振幅来控制相位超前补偿和相位延迟补偿的增益中的至少一个。

17. 发明授权

US07646560B2 Positioning control system and positioning control method 有权
标题翻译：定位控制系统和定位控制方法
公开(公告)号：US07646560B2
公开(公告)日：2010-01-12
申请号：US12206105
申请日：2008-09-08
申请人： Yoshiyuki Ishihara , Shinji Takakura
发明人： Yoshiyuki Ishihara , Shinji Takakura
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： There is provided with a positioning control system including: a head moving unit; a position detecting unit detecting a head position at predetermined time intervals; an error detecting unit detecting a position error of the head for a target position; a disturbance detecting unit detecting a non-periodic disturbance; a modifying unit modifying a first position error signal corresponding to a first head position detected in a first rotation period based on a second position error signal corresponding to a second head position detected one period length before; and a feedback controller, wherein the modifying unit modifies the first signal after reducing an amplitude of the second position error signal when a detected timing of the second head position is included in a predetermined time range with respect to a detected timing of the non-periodic disturbance detected in a second rotation period which is one period before the first rotation period.
摘要翻译：提供了一种定位控制系统，包括：头移动单元; 位置检测单元，以预定的时间间隔检测头部位置; 检测针对目标位置的头部的位置误差的误差检测单元; 检测非周期性扰动的扰动检测单元; 修改单元，基于与检测到的一个周期长度之前的第二头部位置相对应的第二位置误差信号，修改与在第一旋转周期中检测到的第一头位置对应的第一位置误差信号; 以及反馈控制器，其中当相对于非周期性的检测到的定时在预定时间范围内包括检测到的第二头位置的定时时，修改单元在减小第二位置误差信号的幅度之后修改第一信号在第一旋转周期之前的一个周期的第二旋转周期中检测到干扰。

18. 发明授权

US07852739B2 Positioning system mounted on probe memory device and positioning method thereof 失效
标题翻译：安装在探针存储装置上的定位系统及其定位方法
公开(公告)号：US07852739B2
公开(公告)日：2010-12-14
申请号：US12051101
申请日：2008-03-19
申请人： Akihiro Koga , Shinji Takakura , Hiroaki Nakamura , Kohichi Kubo , Takahiro Hirai , Junichi Akiyama
发明人： Akihiro Koga , Shinji Takakura , Hiroaki Nakamura , Kohichi Kubo , Takahiro Hirai , Junichi Akiyama
IPC分类号： G11B7/00
CPC分类号： G11B9/1481 , B82Y10/00 , G11B5/743 , G11B9/1454
摘要： A probe memory device carries out positioning with the use of a servo pattern provided in a servo area on a recording medium, and the recording medium and a probe head section are reciprocatingly moved (scan-moved) by vibration at a specific frequency in a one-axis direction. At this time, based on information from the servo area, relative position information between the recording medium and the probe head section is acquired, the relative position information is processed at a control section, and then, feedback control is carried out for carrying out position correction relative to an actuator.
摘要翻译：探针存储装置通过使用设置在记录介质上的伺服区域中的伺服图案来执行定位，并且记录介质和探针头部分通过一个特定频率的振动以一个方式往复移动（扫描移动）方向。此时，基于来自伺服区域的信息，获取记录介质和探头头部之间的相对位置信息，在控制部处理相对位置信息，然后进行反馈控制以进行位置相对于致动器的校正。

19. 发明申请

US20070070852A1 Magnetic recording apparatus and positioning correction method 失效
标题翻译：磁记录装置及定位校正方法
公开(公告)号：US20070070852A1
公开(公告)日：2007-03-29
申请号：US11368734
申请日：2006-03-06
申请人： Hiroaki Nakamura , Shinji Takakura
发明人： Hiroaki Nakamura , Shinji Takakura
IPC分类号： G11B20/18
CPC分类号： G11B20/10 , G11B5/59627
摘要： A magnetic recording apparatus includes a composite magnetic head which includes a recording head and a reproducing head; a magnetic storage medium; a discrete area; and a correction information recording area. Positioning correction information is able to be written in the correction information recording area at each track center. The apparatus also includes a center shift amount detection area. Center shift amount detection information is previously recorded in the center shift amount detection area. The center shift amount detection information is for measuring a center shift amount which indicates a relative distance between a tracking center and an actual track center of the discrete area when either the recording head or the reproducing head is positioned at a track center.
摘要翻译：磁记录装置包括复合磁头，其包括记录头和再现头; 磁存储介质; 离散区域和校正信息记录区域。定位校正信息能够被写入每个轨道中心的校正信息记录区域。该装置还包括中心偏移量检测区域。中心偏移量检测信息预先记录在中心偏移量检测区域中。中心偏移量检测信息用于测量当记录头或再现头位于轨道中心时的离散区域的跟踪中心和实际轨道中心之间的相对距离的中心偏移量。

20. 发明授权

US07961586B2 Information recording/reproducing device 失效
标题翻译：信息记录/再现装置
公开(公告)号：US07961586B2
公开(公告)日：2011-06-14
申请号：US11895378
申请日：2007-08-24
申请人： Kohichi Kubo , Takahiro Hirai , Shinya Aoki , Akihiro Koga , Junichi Akiyama , Shinji Takakura , Hiroaki Nakamura
发明人： Kohichi Kubo , Takahiro Hirai , Shinya Aoki , Akihiro Koga , Junichi Akiyama , Shinji Takakura , Hiroaki Nakamura
IPC分类号： G11B9/00
CPC分类号： G11B9/02 , B82Y10/00 , G11B9/1481
摘要： An information recording/reproducing device according to an example of the present invention includes first and second heads, a recording medium having a data area from which recording data is read by the first head and a servo burst area from which a servo burst signal is read by the second head, a driver which performs positioning of the second head based on the servo burst signal, and a resistor which covers a surface of the servo burst area and does not cover a surface of the data area. The recording data and the servo burst signal are recorded by a pulse signal.
摘要翻译：根据本发明的示例的信息记录/再现装置包括第一和第二磁头，具有数据区的记录介质，由第一磁头读取记录数据和读取伺服脉冲信号的伺服脉冲串区域通过第二头，基于伺服突发信号执行第二头的定位的驱动器，以及覆盖伺服突发区域的表面并且不覆盖数据区域的表面的电阻器。记录数据和伺服脉冲信号由脉冲信号记录。

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