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。

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。

公开(公告)号：US06982848B2

公开(公告)日：2006-01-03

申请号：US10852135

申请日：2004-05-25

申请人： Toshio Inaji ,  Keizo Miyata ,  Hiroshi Kohso ,  Makoto Umeda

发明人： Toshio Inaji ,  Keizo Miyata ,  Hiroshi Kohso ,  Makoto Umeda

IPC分类号： G11B5/596 ,  G11B21/02

CPC分类号： G11B5/596 ,  G11B5/5582 ,  G11B21/106

摘要： A disk apparatus includes: an actuator 7; a driver 10; a voltage detector 11 for outputting first voltage signal Ed which is produced in a driving coil 5 of the actuator 7; a voltage signal adjuster 16 for outputting pseudo disturbance signal ur and generating second voltage signal Ed+ from pseudo disturbance signal ur, driving signal u, first voltage signal Ed, and disturbance estimation signal τdest; a disturbance estimator 12 for estimating the magnitude of disturbance load τd applied to a magnetic head 2 from driving signal u and second voltage signal Ed+ to output disturbance estimation signal τdest; a position detector 13 for generating position error signal e which corresponds to a current position of the magnetic head 2; a position controller 14 for generating control signal c from position error signal e; and a corrector 15 for generating driving signal u from disturbance estimation signal τdest and position control signal c.

摘要翻译： 盘装置包括：致动器7; 司机10; 用于输出在致动器7的驱动线圈5中产生的第一电压信号Ed的电压检测器11; 用于从伪干扰信号ur输出伪干扰信号ur并产生第二电压信号Ed + SUP的电压信号调节器16，驱动信号u，第一电压信号Ed和干扰估计信号taud < / SUB>; 用于估计从驱动信号u和第二电压信号Ed + SUP施加到磁头2的干扰负载taud的大小的干扰估计器12，以输出干扰估计信号taud < 用于产生对应于磁头2的当前位置的位置误差信号e的位置检测器13; 位置控制器14，用于从位置误差信号e产生控制信号c; 以及用于从干扰估计信号taud和/或位置控制信号c产生驱动信号u的校正器15。

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。

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。

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。

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。

公开(公告)号：US06714367B1

公开(公告)日：2004-03-30

申请号：US09555583

申请日：2000-08-07

申请人： Tatsuaki Ishida ,  Hiroshi Ryonai ,  Nobuyuki Komura ,  Keizo Miyata ,  Kiyokazu Tohma

发明人： Tatsuaki Ishida ,  Hiroshi Ryonai ,  Nobuyuki Komura ,  Keizo Miyata ,  Kiyokazu Tohma

IPC分类号： G11B586

CPC分类号： B82Y10/00 ,  G11B5/64 ,  G11B5/656 ,  G11B5/74 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  G11B5/865

摘要： A master information carrier has a shape pattern corresponding to an information signal array to be recorded on a magnetic recording medium, and the shape pattern is provided by arraying a ferromagnetic thin film deposited on a nonmagnetic substrate surface. The ferromagnetic thin film is either a soft magnetic film or semihard magnetic film having not more than 40 kA/m coercive force in track length direction of the information signals, and residual magnetization of the ferromagnetic thin film in the track length direction of the information signals is greater than coercive force of the magnetic recording medium. As a result, a master information carrier with superior magnetic recording performance can be obtained.

摘要翻译： 主信息载体具有对应于要记录在磁记录介质上的信息信号阵列的形状图案，并且通过排列沉积在非磁性基板表面上的铁磁性薄膜来提供形状图案。 铁磁性薄膜是在信息信号的轨道长度方向上具有不超过40kA / m矫顽力的软磁性膜或半硬磁性薄膜，以及信息信号的磁道长度方向上的铁磁性薄膜的剩余磁化 大于磁记录介质的矫顽力。 结果，可以获得具有优良磁记录性能的主信息载体。

公开(公告)号：US06646820B1

公开(公告)日：2003-11-11

申请号：US09869947

申请日：2001-07-03

申请人： Tatsuaki Ishida ,  Taizou Hamada ,  Hideyuki Hashi ,  Keizo Miyata ,  Yasuaki Ban ,  Hiromi Kita

发明人： Tatsuaki Ishida ,  Taizou Hamada ,  Hideyuki Hashi ,  Keizo Miyata ,  Yasuaki Ban ,  Hiromi Kita

IPC分类号： G11B586

CPC分类号： G11B5/865 ,  G11B5/127 ,  G11B5/23 ,  G11B5/82

摘要： A master information carrier (2) with an arranged pattern formed of a ferromagnetic film in a shape corresponding to information signals is superposed on a magnetic recording medium (1) and the arranged pattern formed of a ferromagnetic film is magnetized with a magnetizing head (6), thus transfer-recording the arranged pattern into the magnetic recording medium as a magnetized pattern. The magnetizing head includes an annular magnetic circuit with a gap, and a strength of a magnetic field applied to the master information carrier by magnetic flux leaking from portions other than the gap is set to be 20% or less of that of a magnetic field applied to the master information carrier by magnetic flux leaking from the gap. Quality deterioration due to various conditions during recording can be prevented and uniform recording with less variation depending on position on the magnetic recording medium is achieved.

摘要翻译： 具有与信息信号相对应的铁磁膜形成的排列图案的主信息载体（2）叠加在磁记录介质（1）上，由铁磁膜形成的排列图案被磁化头（6 ），从而将布置的图案作为磁化图案转印记录到磁记录介质中。 磁化头包括具有间隙的环形磁路，并且通过从除了间隙之外的部分泄漏的磁通量施加到主信息载体的磁场强度设定为施加的磁场的磁场强度的20％以下 通过磁通从主信息载体泄漏出来。 可以防止由记录期间的各种条件导致的质量劣化，并且实现根据磁记录介质上的位置具有较小变化的均匀记录。

公开(公告)号：US06858328B1

公开(公告)日：2005-02-22

申请号：US09646139

申请日：1999-03-18

申请人： Tatsuaki Ishida ,  Kiyokazu Tohma ,  Keizo Miyata ,  Yoriko Takai ,  Taizou Hamada ,  Hiroshi Ryonai

发明人： Tatsuaki Ishida ,  Kiyokazu Tohma ,  Keizo Miyata ,  Yoriko Takai ,  Taizou Hamada ,  Hiroshi Ryonai

IPC分类号： G11B5/73 ,  G11B5/127 ,  G11B5/55 ,  G11B5/596 ,  G11B5/64 ,  G11B5/72 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B5/855 ,  G11B5/86 ,  G11B5/66 ,  B05D5/12 ,  G11B5/70 ,  H01F1/00

CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/656 ,  G11B5/72 ,  G11B5/743 ,  G11B5/82 ,  G11B5/8408 ,  G11B5/855 ,  Y10S428/90

摘要： A master information carrier with excellent durability is provided, for the use of static and a real lump-sum recording of digital information signals on magnetic recording medium. The master information carrier comprises a non-magnetic substrate on which a ferromagnetic film is disposed with an embossed pattern. Protrusions of the embossed pattern correspond to a disposition of the digital information signals.Recessed portions of the embossed pattern of the ferromagnetic film are filled with non-magnetic solid material. Alternately, A non-magnetic substrate has an embossed pattern and recessed portions of the embossed pattern correspond to a disposition of the digital information signals. A ferromagnetic film is filled in the recessed portions of the embossed pattern.

摘要翻译： 提供了具有优异耐久性的主信息载体，用于在磁记录介质上使用静态和数字信息信号的实际一次总计记录。 主信息载体包括其上以压花图案设置铁磁膜的非磁性基板。 浮雕图案的突起对应于数字信息信号的布置。铁磁膜的压花图案的凹入部分填充有非磁性固体材料。 或者，非磁性基板具有压花图案，并且压花图案的凹部对应于数字信息信号的布置。 铁氧体膜填充在压纹图案的凹部中。