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11. 发明授权

US07031099B2 Head positioner and information recording/replaying apparatus 失效
标题翻译：头部定位器和信息记录/重放装置
公开(公告)号：US07031099B2
公开(公告)日：2006-04-18
申请号：US10206591
申请日：2002-07-29
申请人： Hiroshi Kohso , Hideki Kuwajima , Toshio Inaji
发明人： Hiroshi Kohso , Hideki Kuwajima , Toshio Inaji
IPC分类号： G11B5/596
CPC分类号： G11B21/085 , G11B5/4826 , G11B5/5552 , G11B5/596 , G11B21/106 , G11B21/18
摘要： A head positioner has a configuration employing a dual-stage actuator method, wherein positioning control is performed for a write/read according to cooperative operations of a coarse actuator and a fine actuator, and the fine actuator is configured using a piezoelectric device. A positioning control unit for controlling the coarse actuator and the fine actuator is configured to include a coarse control system including a coarse drive unit for driving the coarse actuator and coarse control unit for controlling the coarse drive unit, a fine control system including a fine drive unit for driving the fine actuator and a fine control unit for controlling the fine drive unit. In addition, a driving-signal limiting unit is provided. The piezoelectric device is prone to property deterioration because of erosion due to an electrochemical reaction. The driving-signal limiting unit limits the level of a fine control signal fed from the fine control unit to the fine drive unit to be below a threshold at which property deterioration of the piezoelectric device is caused by an electrochemical reaction. Further, as a median-value signal, a relative displacement signal ranked in the center of a plurality of relative displacement signals sent from a plurality of the individual fine actuators is selected. The coarse actuator is controlled according to the selected median-value signal.
摘要翻译：头部定位器具有采用双级致动器方法的结构，其中根据粗略致动器和精细致动器的协同操作执行写入/读取的定位控制，并且精细致动器使用压电装置构造。一种用于控制粗动作装置和精细致动器的定位控制装置，其特征在于，包括：粗动控制系统，包括用于驱动粗动作器的粗驱动装置和用于控制粗驱动装置的粗动控制装置;精细控制装置，用于驱动精细致动器的单元和用于控制精细驱动单元的精细控制单元。另外，提供了驱动信号限制单元。由于电化学反应引起的侵蚀，压电元件容易发生特性劣化。驱动信号限制单元将从精细控制单元馈送到精细驱动单元的精细控制信号的电平限制在低于由电化学反应引起压电器件的性能劣化的阈值。此外，作为中值信号，选择从多个各个精细致动器发送的多个相对位移信号的中心的相对位移信号。根据所选择的中值信号控制粗调执行器。

12. 发明授权

US06950274B2 Disk storage apparatus and disk storage apparatus control method 失效
标题翻译：磁盘存储装置和磁盘存储装置的控制方法
公开(公告)号：US06950274B2
公开(公告)日：2005-09-27
申请号：US10305366
申请日：2002-11-27
申请人： Toshio Inaji , Hiroshi Kohso , Keizo Miyata , Makoto Umeda
发明人： Toshio Inaji , Hiroshi Kohso , Keizo Miyata , Makoto Umeda
IPC分类号： G11B5/55 , G11B5/596 , G11B21/10
CPC分类号： G11B5/5582 , G11B5/59694 , G11B21/106
摘要： A disk storage apparatus includes: an actuator positioning a head with respect to a disk; a drive device driving the actuator; a voltage detection device detecting a voltage signal induced in driving the actuator; a disturbance estimation unit estimating the magnitude of load disturbance exerted on the head from a drive signal and the voltage signal, and outputting a disturbance estimation signal; a filter unit cutting off a high frequency component of the disturbance estimation signal, and outputting a filter signal; a position detection unit producing a position error signal corresponding to a current position of the head; a position control unit producing a position control signal based on the position error signal; and a correction unit outputting the drive signal based on the filter signal and the position control signal, and the apparatus controls stable positioning of the head against a resistance value fluctuation of a drive coil of the actuator and a resistance value change.
摘要翻译：磁盘存储装置包括：致动器相对于盘定位头部; 驱动致动器的驱动装置; 电压检测装置，检测在驱动致动器时感应的电压信号; 干扰估计单元，从驱动信号和所述电压信号估计施加在所述磁头上的负载扰动的大小，并输出干扰估计信号; 滤波单元，切断干扰估计信号的高频分量，输出滤波信号; 位置检测单元，产生与头部的当前位置对应的位置误差信号; 位置控制单元，基于位置误差信号产生位置控制信号; 以及校正单元，其基于滤波器信号和位置控制信号输出驱动信号，并且该装置控制头部抵抗致动器的驱动线圈的电阻值波动和电阻值变化的稳定定位。

13. 发明授权

US07038877B2 Head positioning apparatus 失效
标题翻译：头定位装置
公开(公告)号：US07038877B2
公开(公告)日：2006-05-02
申请号：US10800193
申请日：2004-03-11
申请人： Hiroshi Kohso , Toshio Inaji , Keizo Miyata
发明人： Hiroshi Kohso , Toshio Inaji , Keizo Miyata
IPC分类号： G11B5/596
CPC分类号： G11B5/556
摘要： A head positioning apparatus capable of positioning a head at high speed and with high accuracy is provided. The head positioning apparatus includes a magnetic head, a head supporting mechanism, a coarse actuator, a fine actuator, a head position detection part, a fine movement control system for controlling the fine actuator based on the head position detected by the head position detection part, a head moving distance estimation part estimating the head moving distance representing the distance the magnetic head moves, and the coarse movement control system for controlling the coarse actuator based on the head moving distance estimated by the head moving distance estimation part.
摘要翻译：提供一种头部定位装置，其能够高精度地高精度地定位头部。头部定位装置包括磁头，头部支撑机构，粗略致动器，精细致动器，头部位置检测部分，微动员控制系统，用于基于由头部位置检测部分检测到的头部位置来控制精细致动器估计表示磁头移动距离的磁头移动距离的磁头移动距离估计部分，以及用于根据磁头移动距离估计部分估计的磁头移动距离来控制粗调制器的粗调移动控制系统。

14. 发明授权

US06950271B2 Disk drive and disk drive control method 失效
标题翻译：磁盘驱动器和磁盘驱动器控制方式
公开(公告)号：US06950271B2
公开(公告)日：2005-09-27
申请号：US10670199
申请日：2003-09-26
申请人： Toshio Inaji , Hiroshi Kohso , Keizo Miyata
发明人： Toshio Inaji , Hiroshi Kohso , Keizo Miyata
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/59627 , G11B5/5526
摘要： A position detector generates a position error signal corresponding to a current position of a head, a position controller generates a position control signal from the position error signal, a voltage detector detects a voltage signal generated when driving an actuator by a driver, a disturbance estimator generates a disturbance estimation signal from a driving signal and the voltage signal, and a corrector outputs the driving signal from the disturbance estimation signal and the position control signal. The disturbance estimator includes a comparator which compares the disturbance estimation signal with a voltage signal and which outputs a deviation signal, and an adder which adds a signal obtained by multiplying an integral signal, which is obtained by integrating the deviation signal, by a first coefficient and a signal obtained by multiplying a proportional signal proportional to the deviation signal by a second coefficient, and which generates the disturbance estimation signal. The disturbance estimation signal suppresses a tracking deviation of the head due to a disturbance such as an inertial force applied to the head actuator and stabilizes head positioning control.
摘要翻译：位置检测器产生与头部的当前位置对应的位置误差信号，位置控制器从位置误差信号产生位置控制信号，电压检测器检测由驾驶员驱动致动器时产生的电压信号，干扰估计器从驱动信号和电压信号产生干扰估计信号，校正器从干扰估计信号和位置控制信号输出驱动信号。扰动估计器包括：比较器，其将干扰估计信号与电压信号进行比较，并输出偏差信号;以及加法器，将通过将偏差信号积分得到的积分信号乘以第一系数以及通过将与偏差信号成比例的比例信号乘以第二系数而获得的信号，并产生干扰估计信号。干扰估计信号抑制由于诸如施加到头致动器的惯性力之类的干扰导致的磁头的跟踪偏差，并且稳定磁头定位控制。

15. 发明申请

US20050052767A1 Magnetic disk apparatus, method for determining data track pitch, and self-servo write method 有权
标题翻译：磁盘装置，数据磁道间距的确定方法以及自伺服写入方法
公开(公告)号：US20050052767A1
公开(公告)日：2005-03-10
申请号：US10931971
申请日：2004-09-02
申请人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
发明人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
IPC分类号： G11B5/596 , G11B5/86 , G11B27/36 , G11B5/09 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/865
摘要： A self-servo reference signal including a timing pattern and an oblique phase pattern is transferred in advance on a magnetic disk 1 by magnetic printing. A phase difference detection section 13 detects a phase difference between the two patterns to detect the position of a magnetic head 2. A burst signal generated by a record signal generation section 14 is recorded in a region of the magnetic disk 1 where no self-servo reference signal is recorded. A track pitch calculation section 11 determines a relationship between the reproduction output of the burst signal detected by a reproduction signal processing section 12 and the phase difference detected by the phase difference detection section 13, thus calculating an optimum data track pitch.
摘要翻译：包括定时模式和倾斜相位图案的自伺服参考信号通过磁性印刷预先传送到磁盘1上。相位差检测部分13检测两个图案之间的相位差以检测磁头2的位置。由记录信号产生部分14产生的脉冲串信号被记录在磁盘1的没有自伺服的区域中参考信号被记录。轨道间距计算部分11确定由再现信号处理部分12检测到的脉冲串信号的再现输出与由相位差检测部分13检测的相位差之间的关系，从而计算最佳数据磁道间距。

16. 发明授权

US07064919B2 Disk storage apparatus 失效
公开(公告)号：US07064919B2
公开(公告)日：2006-06-20
申请号：US09907572
申请日：2001-07-19
申请人： Toshio Inaji , Hiroshi Kohso
发明人： Toshio Inaji , Hiroshi Kohso
IPC分类号： G11B5/596
CPC分类号： G11B5/5526 , G11B21/025
摘要： In a disk storage apparatus having an actuator for loading/unloading a magnetic head with respect to a magnetic disk, a voltage signal generated when the actuator is driven is detected by a voltage detector, a speed load estimator estimates moving speed of the head and level of load disturbance added to the magnetic head from a driving signal in a driver of the actuator and the voltage signal, and outputs a speed estimating signal and a load estimating signal, a speed controller generates and outputs a speed control signal based on a speed command signal and the speed estimating signal, a synthesizer generates a driving signal from the load estimating signal and a speed control signal, and the apparatus loads and unloads the head at a stable speed against the load disturbance caused by friction or the like on a ramp block.

17. 发明授权

US07019938B2 Head positioning method, and disk apparatus using the same 失效
标题翻译：头定位方法和使用其的磁盘装置
公开(公告)号：US07019938B2
公开(公告)日：2006-03-28
申请号：US10692652
申请日：2003-10-27
申请人： Keizo Miyata , Toshio Inaji , Hiroshi Kohso
发明人： Keizo Miyata , Toshio Inaji , Hiroshi Kohso
IPC分类号： G11B5/596
CPC分类号： G11B5/5552 , G11B21/083
摘要： A first estimator 13 estimates the position of a head based on a VCM driving signal u1 and a voltage signal Va output from a VCM 6 to output a first head position estimation signal x1est. The first estimator 13 estimates the disturbance acting on a head supporting mechanism 8 to output a disturbance estimation signal τdest. A second estimator 15 estimates the displacement of the head based on a control signal c2 for a fine adjustment actuator 7 to output a displacement estimation signal x2est. The first head position estimation signal x1est and the displacement estimation signal x2est are added together to obtain a second head position estimation signal xest. A position error signal e is generated using a head position signal x obtained by detecting the servo information and the second head position estimation signal xest. A disturbance compensator 10 synthesizes a VCM control signal c1 with the disturbance estimation signal τdest to generate the VCM driving signal u1.
摘要翻译：第一估计器13基于VCM驱动信号u 1 1和从VCM 6输出的电压信号Va来估计头的位置，以输出第一头位置估计信号x＆lt; 1＆ SUB>。第一估计器13估计作用在头支撑机构8上的扰动，以输出干扰估计信号τ> dest dest dest。第二估计器15基于用于精调节致动器7的控制信号c 2估计头的位移，以输出位移估计信号x2stest 。将第一头部位置估计信号x 1＆lt; 1＆gt;和位移估计信号x＆lt; 2est＆gt;相加在一起以获得第二头部位置估计信号x 。使用通过检测伺服信息和第二打印头位置估计信号x获得的打印头位置信号x来产生位置误差信号e。干扰补偿器10将VCM控制信号c 1与干扰估计信号τSUB分配，以产生VCM驱动信号u 1。

18. 发明授权

US07177106B2 Disk storage apparatus 有权
标题翻译：磁盘存储装置
公开(公告)号：US07177106B2
公开(公告)日：2007-02-13
申请号：US10079850
申请日：2002-02-22
申请人： Toshio Inaji , Hiroshi Kohso
发明人： Toshio Inaji , Hiroshi Kohso
IPC分类号： G11B15/04 , G11B19/04
CPC分类号： G11B5/5582 , G11B5/5521 , G11B5/596
摘要： A disk storage apparatus including a position detection section for producing position error information corresponding to the current position of a head from servo information which has been previously recorded on a disk and is detected by the head, a position control section for producing position control information corresponding to the position error information, a voltage detection section for detecting a voltage generated in driving an actuator for positioning the head with respect to the disk, and for outputting a voltage signal, a disturbance estimation section for estimating the magnitude of a disturbance exerted on the head from the voltage signal by the voltage detection section and from a drive signal by a drive section of the actuator, and producing disturbance estimation information, a correction section for correcting the position control information by the position control section with the disturbance estimation information and producing the drive signal, and a disturbance monitor section for monitoring the disturbance estimation information, and prohibiting a record by the head if the disturbance estimation information exceeds an allowable range, wherein even if the head is largely dislocated from a target track due to a large shock or vibration at data recording, an erroneous erasing of the adjacent track can be prohibited.
摘要翻译：一种磁盘存储装置，包括位置检测部分，用于根据先前记录在磁盘上并被磁头检测到的伺服信息产生与磁头的当前位置相对应的位置误差信息;位置控制部分，用于产生对应的位置控制信息位置误差信息;电压检测部分，用于检测在驱动用于将磁头相对于磁盘定位的致动器中产生的电压，以及用于输出电压信号;扰动估计部分，用于估计施加在磁头上的扰动的大小; 由电压检测部分的电压信号和由致动器的驱动部分的驱动信号开始并产生干扰估计信息;校正部分，用于通过位置控制部分利用干扰估计信息校正位置控制信息并产生驱动器信号和一个disturban ce监视部分，用于监视干扰估计信息，并且如果干扰估计信息超过允许范围则禁止头部的记录，其中即使由于数据记录时的大的冲击或振动而导致头部从目标轨迹偏移，可以禁止相邻轨道的错误擦除。

19. 发明授权

US07095575B2 Magnetic disk apparatus, method for determining data track pitch, and self-servo write method 有权
标题翻译：磁盘装置，数据磁道间距的确定方法以及自伺服写入方法
公开(公告)号：US07095575B2
公开(公告)日：2006-08-22
申请号：US10931971
申请日：2004-09-02
申请人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
发明人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
IPC分类号： G11B27/36
CPC分类号： G11B5/59633 , G11B5/865
摘要： A self-servo reference signal including a timing pattern and an oblique phase pattern is transferred in advance on a magnetic disk 1 by magnetic printing. A phase difference detection section 13 detects a phase difference between the two patterns to detect the position of a magnetic head 2. A burst signal generated by a record signal generation section 14 is recorded in a region of the magnetic disk 1 where no self-servo reference signal is recorded. A track pitch calculation section 11 determines a relationship between the reproduction output of the burst signal detected by a reproduction signal processing section 12 and the phase difference detected by the phase difference detection section 13, thus calculating an optimum data track pitch.
摘要翻译：包括定时模式和倾斜相位图案的自伺服参考信号通过磁性印刷预先传送到磁盘1上。相位差检测部13检测两个图案之间的相位差，以检测磁头2的位置。由记录信号产生部分14产生的脉冲串信号被记录在没有记录自伺服参考信号的磁盘1的区域中。轨道间距计算部分11确定由再现信号处理部分12检测到的脉冲串信号的再现输出与由相位差检测部分13检测的相位差之间的关系，从而计算最佳数据磁道间距。

20. 发明授权

US06995945B2 Head positioning system, disk drive apparatus using the same, and head positioning method 失效
标题翻译：头定位系统，使用相同的磁盘驱动装置和头定位方法
公开(公告)号：US06995945B2
公开(公告)日：2006-02-07
申请号：US10694445
申请日：2003-10-28
申请人： Hiroshi Kohso , Toshio Inaji
发明人： Hiroshi Kohso , Toshio Inaji
IPC分类号： G11B5/596
CPC分类号： G11B5/5526
摘要： A head positioning system includes: a positioning mechanism section 1 for positioning a head 12; a position controller 2 for detecting a head position signal x to output a position control signal Ux; a velocity detector 3 for detecting the relative velocity of the head 12 with respect to a disk 7 based on the head position signal x; a counter electromotive voltage detector 4 for outputting an estimated head velocity signal Ve2 that is obtained by estimating the absolute velocity of the head 12 based on a counter electromotive voltage signal Vs of an actuator 50; an estimated velocity corrector 5 for correcting an estimation error of the estimated head velocity signal Ve2 based on a velocity signal detected from the head position signal x so as to output a corrected estimated velocity signal Ve2′; and an estimation controller 6 for outputting a velocity control signal Uv based on the corrected estimated velocity signal Ve2′, wherein the actuator 50 is controlled by a control amount signal U that is obtained by adding at least the velocity control signal Uv to the position control signal Ux.
摘要翻译：头部定位系统包括：用于定位头部12的定位机构部分1; 用于检测头位置信号x以输出位置控制信号U X的位置控制器2; 速度检测器3，用于基于头位置信号x检测头部12相对于盘7的相对速度; 反电动势电压检测器4，用于输出通过基于反电动势电压信号V N估计头部12的绝对速度而获得的估计头部速度信号V e2，致动器50; 估计速度校正器5，用于基于从头部位置信号x检测到的速度信号来校正估计的头部速度信号V e2的估计误差，以输出校正的估计速度信号V SUB， e2 以及估计控制器6，用于基于修正后的估计速度信号V e2'输出速度控制信号U≠V，其中致动器50由控制量信号U 这是通过将至少速度控制信号U V添加到位置控制信号U SUB而获得的。

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