公开(公告)号：US20120250175A1

公开(公告)日：2012-10-04

申请号：US13372536

申请日：2012-02-14

申请人： Yoshihiro Sakurai ,  Kunihito Higa ,  Yukio Yamamoto

发明人： Yoshihiro Sakurai ,  Kunihito Higa ,  Yukio Yamamoto

IPC分类号： G11B27/36

CPC分类号： G11B5/59627 ,  G11B20/10222 ,  G11B2220/2516

摘要： The present invention realizes reduction of position information demodulation errors caused by the eccentricity of the magnetic disk and improvement of position signal detection accuracy, as well as enabling quick eccentricity clock correction for arbitrary clock frequencies. An inspection device in accordance with the present invention comprises: a servo demodulation unit which demodulates servo information; a PLL clock generating unit which generates a reference clock and supplies the reference clock to the servo demodulation unit; and a tester control unit. The PLL clock generating unit includes an eccentricity correction circuit for correcting the frequency of the reference clock depending on the eccentricity of the magnetic disk. The tester control unit generates correction data for correcting the frequency of the reference clock, multiplies the correction data by the inverse of a transfer function of the PLL clock generating unit, and supplies the product to the eccentricity correction circuit.

摘要翻译： 本发明实现了由磁盘的偏心引起的位置信息解调错误的减少和位置信号检测精度的提高，以及对任意时钟频率进行快速偏心时钟校正。 根据本发明的检查装置包括：解调伺服信息的伺服解调单元; PLL时钟产生单元，其产生参考时钟并将参考时钟提供给伺服解调单元; 和测试仪控制单元。 PLL时钟产生单元包括偏心校正电路，用于根据磁盘的偏心度校正参考时钟的频率。 测试器控制单元产生用于校正参考时钟的频率的校正数据，将校正数据乘以PLL时钟产生单元的传递函数的倒数，并将该乘积提供给偏心校正电路。

公开(公告)号：US07751143B2

公开(公告)日：2010-07-06

申请号：US12369787

申请日：2009-02-12

申请人： Yukio Yamamoto ,  Yoshihiro Sakurai ,  Kunihito Higa

发明人： Yukio Yamamoto ,  Yoshihiro Sakurai ,  Kunihito Higa

IPC分类号： G11B5/596 ,  G11B27/36

CPC分类号： G11B19/048 ,  G11B5/455 ,  G11B5/5582 ,  G11B5/59627

摘要： A magnetic head position control method is provided to control a magnetic head to follow the track on a DTM (discrete-track magnetic) disk by accurately detecting the eccentricity compensation amount through a simple process. An angle detection unit detects θ1 at which the relative displacement between the magnetic head and the tracks on the DTM (discrete-track magnetic) disk has a peak with no vibration data added. A vibration data calculation unit calculates first vibration data with first vibration amplitude, so that the displacement has a peak at θ2 displaced from θ1 by a predetermined value. The angle detection unit detects θ3 at which the relative displacement has a peak with the first vibration data added. A compensation data calculation unit calculates compensation data for the eccentricity of the tracks, from the detected angles θ1, θ3, the first vibration amplitude, and θ2. The position of the magnetic head is compensated according to the correction data.

摘要翻译： 提供磁头位置控制方法，通过简单的过程精确地检测偏心补偿量来控制磁头跟随DTM（离散磁道磁盘）上的轨道。 角度检测单元检测＆1; 1，磁头和DTM（离散磁道磁盘）上的轨道之间的相对位移具有峰值，而没有添加振动数据。 振动数据计算单元以第一振动振幅计算第一振动数据，使得位移在峰值处具有峰值; 2从＆amp; t 1移位预定值。 角度检测单元检测并且添加了第一振动数据时相对位移具有峰值。 补偿数据计算单元从检测到的角度和角度计算轨道的偏心度的补偿数据; 1，...; 3，第一振幅和＆amp; Thetas; 2。 磁头的位置根据校正数据进行补偿。

公开(公告)号：US20090073602A1

公开(公告)日：2009-03-19

申请号：US12204283

申请日：2008-09-04

申请人： Yoshihiro Sakurai ,  Hitoshi Otani ,  Kunihito Higa ,  Yukio Yamamoto

发明人： Yoshihiro Sakurai ,  Hitoshi Otani ,  Kunihito Higa ,  Yukio Yamamoto

IPC分类号： G11B5/596

CPC分类号： G11B19/048 ,  G11B5/5552 ,  G11B5/59633 ,  G11B5/59666

摘要： A mark information is recorded in an area which is on a circumference of a magnetic disk corresponding to a last track in which a servo information write is ended or a track, which is one or two in front of the last track in which servo information is not written and the mark information is detected by returning a magnetic head in a radial direction of the magnetic disk by a fine movement stage after the magnetic head is moved to a next aimed track by a coarse movement stage. The servo information write position is detected by the magnetic head and the servo information is written in a servo information write position of a next track by positioning the magnetic head therein by using the fine movement stage.

摘要翻译： 标记信息被记录在与伺服信息写入的最后轨道相对应的磁盘的圆周上的区域中，或者在伺服信息为最后轨道的前面的一个或两个轨迹 在通过粗略移动阶段将磁头移动到下一个目标轨道之后，通过微细移动台返回磁盘的径向方向的磁头来检测标记信息。 通过磁头检测伺服信息写入位置，并且通过使用微动载台将磁头定位在其中，将伺服信息写入下一轨道的伺服信息写入位置。

公开(公告)号：US08605378B2

公开(公告)日：2013-12-10

申请号：US13372536

申请日：2012-02-14

申请人： Yoshihiro Sakurai ,  Kunihito Higa ,  Yukio Yamamoto

发明人： Yoshihiro Sakurai ,  Kunihito Higa ,  Yukio Yamamoto

IPC分类号： G11B27/36

CPC分类号： G11B5/59627 ,  G11B20/10222 ,  G11B2220/2516

摘要： The present invention realizes reduction of position information demodulation errors caused by the eccentricity of the magnetic disk and improvement of position signal detection accuracy, as well as enabling quick eccentricity clock correction for arbitrary clock frequencies. An inspection device in accordance with the present invention comprises: a servo demodulation unit which demodulates servo information; a PLL clock generating unit which generates a reference clock and supplies the reference clock to the servo demodulation unit; and a tester control unit. The PLL clock generating unit includes an eccentricity correction circuit for correcting the frequency of the reference clock depending on the eccentricity of the magnetic disk. The tester control unit generates correction data for correcting the frequency of the reference clock, multiplies the correction data by the inverse of a transfer function of the PLL clock generating unit, and supplies the product to the eccentricity correction circuit.

摘要翻译： 本发明实现了由磁盘的偏心引起的位置信息解调错误的减少和位置信号检测精度的提高，以及对任意时钟频率进行快速偏心时钟校正。 根据本发明的检查装置包括：解调伺服信息的伺服解调单元; PLL时钟产生单元，其产生参考时钟并将参考时钟提供给伺服解调单元; 和测试仪控制单元。 PLL时钟产生单元包括偏心校正电路，用于根据磁盘的偏心度校正参考时钟的频率。 测试器控制单元产生用于校正参考时钟的频率的校正数据，将校正数据乘以PLL时钟产生单元的传递函数的倒数，并将该乘积提供给偏心校正电路。

公开(公告)号：US08279551B2

公开(公告)日：2012-10-02

申请号：US12709847

申请日：2010-02-22

申请人： Kunihito Higa ,  Yoshihiro Sakurai ,  Yukio Yamamoto

发明人： Kunihito Higa ,  Yoshihiro Sakurai ,  Yukio Yamamoto

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： Drive waveforms with which extension and contraction characteristics of an actuator corresponding to a number of track eccentricity amounts are stored as data. By reading servo information written in a disk is obtained as a signal indicating a head displacement amount from a track. The head is moved in a direction in which the track is displaced by obtaining an amplitude corresponding to a slip amount of the head position and a rotation angle of maximum eccentricity, reading drive waveforms which is optimal in driving the actuator from the memory and driving the actuator with a drive waveform matched with the rotation angle at which the eccentricity is maximum.

摘要翻译： 将与多个轨道偏心量相对应的致动器的延伸和收缩特性作为数据存储的驱动波形。 通过读取写入盘中的伺服信息作为指示来自轨道的头位移量的信号获得。 通过获得对应于头部位置的滑动量和最大偏心的旋转角度的幅度，使头部沿着轨道移位的方向移动，读取从存储器驱动致动器最佳的驱动波形，并驱动 致动器具有与偏心度最大的旋转角度匹配的驱动波形。

公开(公告)号：US07768737B2

公开(公告)日：2010-08-03

申请号：US12204283

申请日：2008-09-04

申请人： Yoshihiro Sakurai ,  Hitoshi Otani ,  Kunihito Higa ,  Yukio Yamamoto

发明人： Yoshihiro Sakurai ,  Hitoshi Otani ,  Kunihito Higa ,  Yukio Yamamoto

IPC分类号： G11B21/02 ,  G11B5/596 ,  G11B27/36

CPC分类号： G11B19/048 ,  G11B5/5552 ,  G11B5/59633 ,  G11B5/59666

摘要： A mark information is recorded in an area which is on a circumference of a magnetic disk corresponding to a last track in which a servo information write is ended or a track, which is one or two in front of the last track in which servo information is not written and the mark information is detected by returning a magnetic head in a radial direction of the magnetic disk by a fine movement stage after the magnetic head is moved to a next aimed track by a coarse movement stage. The servo information write position is detected by the magnetic head and the servo information is written in a servo information write position of a next track by positioning the magnetic head therein by using the fine movement stage.

摘要翻译： 标记信息被记录在与伺服信息写入的最后轨道相对应的磁盘的圆周上的区域中，或者在伺服信息为最后轨道的前面的一个或两个轨迹 在通过粗略移动阶段将磁头移动到下一个目标轨道之后，通过微细移动台返回磁盘的径向方向的磁头来检测标记信息。 通过磁头检测伺服信息写入位置，并且通过使用微动载台将磁头定位在其中，将伺服信息写入下一轨道的伺服信息写入位置。

公开(公告)号：US08154821B2

公开(公告)日：2012-04-10

申请号：US12537616

申请日：2009-08-07

申请人： Shigeo Nakamura ,  Kimihiko Sudo ,  Toshinori Sugiyama ,  Yasuhiro Matsuda ,  Yukio Yamamoto ,  Yoshihiro Sakurai

发明人： Shigeo Nakamura ,  Kimihiko Sudo ,  Toshinori Sugiyama ,  Yasuhiro Matsuda ,  Yukio Yamamoto ,  Yoshihiro Sakurai

IPC分类号： G11B5/596

CPC分类号： G11B19/048 ,  G11B5/455 ,  G11B5/4555 ,  G11B5/5552 ,  G11B5/59627

摘要： A magnetic head-positioning servo system is provided to accurately test a magnetic disk with a track written in advance, by providing two fine actuators. The second fine actuator, to which a magnetic head is attached, is mounted on the first fine actuator. The second fine actuator has a larger generating displacement than a generating displacement of the first fine actuator, and lets the magnetic disk to follow the eccentricity of the track. In this way, the positioning accuracy can be increased.

摘要翻译： 提供一种磁头定位伺服系统，通过提供两个精细的致动器来精确地测试具有预先写入的轨迹的磁盘。 安装有磁头的第二精细致动器安装在第一精细致动器上。 第二精细致动器具有比第一精细致动器的产生位移更大的发生位移，并且使磁盘跟随轨道的偏心。 以这种方式，可以提高定位精度。

公开(公告)号：US09157144B2

公开(公告)日：2015-10-13

申请号：US12652340

申请日：2010-01-05

申请人： Hideomi Koinuma ,  Yukio Yamamoto ,  Yuji Matsumoto ,  Ryota Takahashi

发明人： Hideomi Koinuma ,  Yukio Yamamoto ,  Yuji Matsumoto ,  Ryota Takahashi

IPC分类号： C23C16/00 ,  C23C14/04

CPC分类号： C23C14/044

摘要： It comprises a mask (11) having a first, a second and a third action edge (11a, 11b, 11c), and a drive means for moving the mask (11) relative to a substrate (12) in a uniaxial direction (A) whereby moving the mask at a fixed rate of movement to cause the edges to successively act on an identical substrate region while successively applying different materials thereto forms thin films of three components successively with respective film thickness gradients oriented in three different directions mutually angularly spaced apart by an angle of 120° to allow these films to overlap, thereby forming a ternary phase diagrammatic thin film 13.

摘要翻译： 它包括具有第一，第二和第三作用边缘（11a，11b，11c）的掩模（11）和用于沿着单轴方向（A（A））移动掩模（11）相对于基板（12）的驱动装置 ），由此以固定的移动速度移动掩模以使得边缘连续地作用在相同的基底区域上，同时连续施加不同的材料，连续地形成三个分量的薄膜，各自的膜厚度梯度在三个不同的方向上互相间隔开 以120°的角度使得这些膜重叠，由此形成三元相图薄膜13。

公开(公告)号：US08244460B2

公开(公告)日：2012-08-14

申请号：US11197538

申请日：2005-08-05

申请人： Tomoki Kubota ,  Yumi Shibata ,  Yukio Yamamoto

发明人： Tomoki Kubota ,  Yumi Shibata ,  Yukio Yamamoto

IPC分类号： G01C21/00

CPC分类号： G01C21/3697

摘要： A navigation system presents and updates information that allows the driver to determine an appropriate vehicle speed and a steering angle depending on a condition or a feature of a road. The navigation system includes storage means for storing map data, a display for displaying information, a vehicle speed sensor for detecting a vehicle speed, and a controller for determining the shape of a road section being approached by a vehicle, based on the map data and the vehicle speed, and controlling the display to display the shape of the road.

摘要翻译： 导航系统呈现和更新信息，其允许驾驶员根据道路的状况或特征来确定适当的车辆速度和转向角度。 导航系统包括存储地图数据的存储装置，用于显示信息的显示器，用于检测车辆速度的车速传感器，以及用于根据地图数据确定车辆接近的道路部分的形状的控制器，以及 车速，并且控制显示器以显示道路的形状。

公开(公告)号：US20100151128A1

公开(公告)日：2010-06-17

申请号：US12652340

申请日：2010-01-05

申请人： Hideomi KOINUMA ,  Yukio Yamamoto ,  Yuji Matsumoto ,  Ryota Takahashi

发明人： Hideomi KOINUMA ,  Yukio Yamamoto ,  Yuji Matsumoto ,  Ryota Takahashi

IPC分类号： B05D1/32

CPC分类号： C23C14/044

摘要： It comprises a mask (11) having a first, a second and a third action edge (11a, 11b, 11c), and a drive means for moving the mask (11) relative to a substrate (12) in a uniaxial direction (A) whereby moving the mask at a fixed rate of movement to cause the edges to successively act on an identical substrate region while successively applying different materials thereto forms thin films of three components successively with respective film thickness gradients oriented in three different directions mutually angularly spaced apart by an angle of 120° to allow these films to overlap, thereby forming a ternary phase diagrammatic thin film 13.

摘要翻译： 它包括具有第一，第二和第三作用边缘（11a，11b，11c）的掩模（11）和用于沿着单轴方向（A（A））移动掩模（11）相对于基板（12）的驱动装置 ），由此以固定的移动速度移动掩模以使得边缘连续地作用在相同的基底区域上，同时连续施加不同的材料，连续地形成三个分量的薄膜，各自的膜厚度梯度在三个不同的方向上互相间隔开 以120°的角度使得这些膜重叠，由此形成三元相图薄膜13。