公开(公告)号：US20050007919A1

公开(公告)日：2005-01-13

申请号：US10915347

申请日：2004-08-11

申请人： Makoto Takamiya ,  Naoki Kawamata

发明人： Makoto Takamiya ,  Naoki Kawamata

IPC分类号： G11B19/20 ,  G01B11/26 ,  G11B5/55 ,  G11B5/596 ,  G11B21/10 ,  G11B7/00 ,  G11B5/09

CPC分类号： G11B5/59677 ,  G11B5/55 ,  G11B5/59605 ,  G11B5/59627 ,  G11B5/59633

摘要： An apparatus for optically detecting rotational position information of a rotating object, includes a light source, a detector which is located at a position to receive scattered light from the rotating object when the rotating object is irradiated with a light beam from the light source, and outputs a frequency signal based on the scattered light, a signal processing system for detecting rotational position information by performing signal processing for the frequency signal from the detector, and a rotation control system for controlling rotation of the rotating object. The rotation control system preliminarily rotates the rotating object in detecting the rotational position information.

摘要翻译： 一种用于光学检测旋转物体的旋转位置信息的装置，包括光源，当旋转物体被来自光源的光束照射时，位于接收来自旋转物体的散射光的位置的检测器，以及 输出基于散射光的频率信号，用于通过对来自检测器的频率信号执行信号处理来检测旋转位置信息的信号处理系统，以及用于控制旋转物体旋转的旋转控制系统。 旋转控制系统在检测旋转位置信息时预先旋转旋转体。

公开(公告)号：US06631047B2

公开(公告)日：2003-10-07

申请号：US09156491

申请日：1998-09-18

申请人： Kou Ishizuka ,  Hidejiro Kadowaki ,  Naoki Kawamata ,  Hiroyuki Hagiwara ,  Makoto Takamiya ,  Shigeki Kato ,  Hiroyuki Shiomi

发明人： Kou Ishizuka ,  Hidejiro Kadowaki ,  Naoki Kawamata ,  Hiroyuki Hagiwara ,  Makoto Takamiya ,  Shigeki Kato ,  Hiroyuki Shiomi

IPC分类号： G11B5596

CPC分类号： G11B5/59677

摘要： An apparatus having a first system for forming a composite light beam of two light beams to be made to interfere with each other, a splitting member for amplitude-splitting the composite light beam into three or more split light beams in the same area, and a second system for obtaining interference light beams of different phases from the plurality of split light beams. Also, an apparatus for effecting information recording on a hard disc drive device comprising an (i) optical system for splitting a light beam into two light beams, causing one of the two light beams to be condensed and reflected by the side of an arm for a recording reading head in the hard disc drive device, and superposing the condensed and reflected light beam on the other light beam to thereby obtain a composite light beam, (ii) a splitting member for amplitude-splitting the composite light beam into three or more split light beams in the same area, (iii) an optical member for obtaining interference light beams of different phases from the plurality of split light beams, (iv) light receiving elements for detecting respective ones of the interference light beams of different phases, (v) a control system for effecting the positioning of the arm on the basis of the result of the detection by each of the light receiving elements, and (vi) a signal writing-in system for writing a signal into a hard disc through the recording reading head each time the arm is positioned.

摘要翻译： 一种具有第一系统的装置，用于形成要彼此干涉的两个光束的复合光束，用于将复合光束分解成同一区域中的三个或更多个分束光束的分束构件，以及 用于从多个分裂光束获得不同相位的干涉光束的第二系统。 另外，一种用于在硬盘驱动装置上进行信息记录的装置，包括：（i）用于将光束分成两束光束的光学系统，使得两个光束中的一个被臂的侧面冷凝和反射， 在所述硬盘驱动装置中的记录读取头，并且将所述聚光反射光束重叠在所述另一光束上，从而获得复合光束;（ii）用于将所述复合光束分解为三个以上的分割部件 在相同的区域中分割光束，（iii）用于从多个分裂光束获得不同相位的干涉光束的光学部件，（iv）用于检测不同相位的干涉光束的各个的光接收元件（ v）用于根据每个光接收元件的检测结果来实现臂的定位的控制系统，以及（vi）用于写入信号的信号写入系统 每当手臂定位时，通过记录读取头进入硬盘。

公开(公告)号：US06829118B1

公开(公告)日：2004-12-07

申请号：US09704704

申请日：2000-11-03

申请人： Makoto Takamiya ,  Naoki Kawamata

发明人： Makoto Takamiya ,  Naoki Kawamata

IPC分类号： G11B1546

CPC分类号： G11B5/59677 ,  G11B5/55 ,  G11B5/59605 ,  G11B5/59627 ,  G11B5/59633

摘要： An apparatus for optically detecting rotational position information of a rotating object, includes a light source, a detector which is located at a position to receive scattered light from the rotating object when the rotating object is irradiated with a light beam from the light source, and outputs a frequency signal based on the scattered light, a signal processing system for detecting rotational position information by performing signal processing for the frequency signal from the detector, and a rotation control system for controlling rotation of the rotating object. The rotation control system preliminarily rotates the rotating object in detecting the rotational position information.

摘要翻译： 一种用于光学检测旋转物体的旋转位置信息的装置，包括光源，当旋转物体被来自光源的光束照射时，位于接收来自旋转物体的散射光的位置的检测器，以及 输出基于散射光的频率信号，用于通过对来自检测器的频率信号执行信号处理来检测旋转位置信息的信号处理系统，以及用于控制旋转物体旋转的旋转控制系统。 旋转控制系统在检测旋转位置信息时预先旋转旋转体。

公开(公告)号：US07202979B2

公开(公告)日：2007-04-10

申请号：US10915347

申请日：2004-08-11

申请人： Makoto Takamiya ,  Naoki Kawamata

发明人： Makoto Takamiya ,  Naoki Kawamata

IPC分类号： H04N1/387 ,  G01P3/36

CPC分类号： G11B5/59677 ,  G11B5/55 ,  G11B5/59605 ,  G11B5/59627 ,  G11B5/59633

摘要： An apparatus for optically detecting rotational position information of a rotating object, includes a light source, a detector which is located at a position to receive scattered light from the rotating object when the rotating object is irradiated with a light beam from the light source, and outputs a frequency signal based on the scattered light, a signal processing system for detecting rotational position information by performing signal processing for the frequency signal from the detector, and a rotation control system for controlling rotation of the rotating object. The rotation control system preliminarily rotates the rotating object in detecting the rotational position information.

摘要翻译： 一种用于光学检测旋转物体的旋转位置信息的装置，包括光源，当旋转物体被来自光源的光束照射时，位于接收来自旋转物体的散射光的位置的检测器，以及 输出基于散射光的频率信号，用于通过对来自检测器的频率信号执行信号处理来检测旋转位置信息的信号处理系统，以及用于控制旋转物体旋转的旋转控制系统。 旋转控制系统在检测旋转位置信息时预先旋转旋转体。

公开(公告)号：US08706269B2

公开(公告)日：2014-04-22

申请号：US12689551

申请日：2010-01-19

申请人： Naoki Kawamata

发明人： Naoki Kawamata

IPC分类号： G05B11/32 ,  G05B19/18 ,  G05D3/20

CPC分类号： G05B19/404 ,  G01D5/24476 ,  G05B2219/41115

摘要： A controller which generates a driving instruction to control driving of an object while detecting a position of the object based on two periodic signals that are provided by an encoder and have different phases, comprises a counter configured to count periods of one of the two periodic signals, and a processor configured to detect the position of the object based on an arctangent value of a ratio of values of the two periodic signals and a count value provided by the counter, and to generate the driving instruction based on the position, wherein the processor is configured to compensates an error in the count value based on the driving instruction generated in the past and an acceleration of the object computed based on the arctangent value and the count value, and to compute the position of the object based on the compensated count value.

摘要翻译： 一种控制器，其基于由编码器提供并且具有不同相位的两个周期信号来检测对象的位置，生成用于控制对象的驱动的驱动指令，所述控制器包括：计数器，被配置为对所述两个周期信号之一的周期进行计数 以及处理器，被配置为基于所述两个周期信号的值的比值的反正切值和由所述计数器提供的计数值来检测所述对象的位置，并且基于所述位置生成所述驾驶指令，其中所述处理器 被配置为基于过去产生的驱动指令和基于反正切值和计数值计算的对象的加速度来补偿计数值中的误差，并且基于补偿计数值来计算对象的位置 。

公开(公告)号：US07154947B2

公开(公告)日：2006-12-26

申请号：US10414333

申请日：2003-04-15

申请人： Naoki Kawamata

发明人： Naoki Kawamata

IPC分类号： H03K7/04

CPC分类号： G01D5/24404

摘要： This invention is to allow accurate high-speed coincidence detection while preventing any increase in circuit scale. To achieve this object, a coincidence detection apparatus includes a detector which outputs at least two periodical signals in accordance with the displacement of an object, a digital interpolator which processes the periodical signal output from the detector at a predetermined time interval to generate a displacement or angle at a period shorter than the period of the periodical signal, a pulse generation unit which generates a constant frequency pulse signal, a counter which counts the pulse signal output from the pulse generation unit, and a pulse conversion unit which calculates a value to be set in the counter from the difference between displacement information corresponding to the target position of the object and the output from the digital interpolator.

公开(公告)号：US20100185340A1

公开(公告)日：2010-07-22

申请号：US12689551

申请日：2010-01-19

申请人： Naoki Kawamata

发明人： Naoki Kawamata

IPC分类号： G05D3/20

CPC分类号： G05B19/404 ,  G01D5/24476 ,  G05B2219/41115

摘要： A controller which generates a driving instruction to control driving of an object while detecting a position of the object based on two periodic signals that are provided by an encoder and have different phases, comprises a counter configured to count periods of one of the two periodic signals, and a processor configured to detect the position of the object based on an arctangent value of a ratio of values of the two periodic signals and a count value provided by the counter, and to generate the driving instruction based on the position, wherein the processor is configured to compensates an error in the count value based on the driving instruction generated in the past and an acceleration of the object computed based on the arctangent value and the count value, and to compute the position of the object based on the compensated count value.

摘要翻译： 一种控制器，其基于由编码器提供并且具有不同相位的两个周期信号来检测对象的位置，生成用于控制对象的驱动的驱动指令，所述控制器包括：计数器，被配置为对所述两个周期信号之一的周期进行计数 以及处理器，被配置为基于所述两个周期信号的值的比值的反正切值和由所述计数器提供的计数值来检测所述对象的位置，并且基于所述位置生成所述驾驶指令，其中所述处理器 被配置为基于过去产生的驱动指令和基于反正切值和计数值计算的对象的加速度来补偿计数值中的误差，并且基于补偿计数值来计算对象的位置 。

公开(公告)号：US6057976A

公开(公告)日：2000-05-02

申请号：US925613

申请日：1997-09-09

申请人： Yasuhiko Ishida ,  Naoki Kawamata

发明人： Yasuhiko Ishida ,  Naoki Kawamata

IPC分类号： G01P3/36 ,  G11B5/55 ,  G11B5/596 ,  G11B5/82 ,  G11B19/12 ,  G11B19/28 ,  G11B23/42 ,  G11B27/32

CPC分类号： G01P3/366 ,  G11B19/12 ,  G11B19/28 ,  G11B23/42 ,  G11B27/32 ,  G11B5/82 ,  G11B5/553 ,  G11B5/59677

摘要： An angular division apparatus for circumferentially dividing a rotating object into a plurality of areas by using Doppler pulses includes an optical head for applying a beam emitted from a light source unit to a rotating object and detecting Doppler pulses based on a shift of the frequency of the light scattered from the rotating object, and a counting unit for counting the Doppler pulses output from the optical head to determine the number of pulses for one revolution of the rotating object. The number of Doppler pulses for one revolution is divided by a division number for dividing the rotating object into a plurality of areas in the angular direction. The rotating object is divided into a plurality of areas in the angular direction thereof by using the number of Doppler pulses per divided area.

摘要翻译： 一种用于通过使用多普勒脉冲将旋转物体周向地分割成多个区域的角度分割装置包括用于将从光源单元发射的光束施加到旋转物体的光学头，并且基于所述光学元件的频率的偏移来检测多普勒脉冲 从旋转物体散射的光，以及计数单元，用于对从光头输出的多普勒脉冲进行计数，以确定旋转物体的一圈的脉冲数。 将一圈的多普勒脉冲数除以用于将旋转物体分割成角度方向上的多个区域的分割数。 通过使用每个分割区域的多普勒脉冲数将旋转物体沿其角度方向分割成多个区域。

公开(公告)号：US6043622A

公开(公告)日：2000-03-28

申请号：US64855

申请日：1998-04-23

申请人： Hiroyuki Shiomi ,  Naoki Kawamata ,  Jun Ashiwa

发明人： Hiroyuki Shiomi ,  Naoki Kawamata ,  Jun Ashiwa

IPC分类号： G05B19/29

CPC分类号： G05B19/29 ,  Y10S388/929

摘要： A one-phase electromagnetic motor drive controller includes a one-phase electromagnetic motor, a position detection mechanism for detecting a rotational position of the motor and a control mechanism for controlling the drive of the one-phase electromagnetic motor from the detected rotational position. When the torque constant of the motor is used as a parameter of a control calculation, the torque constant parameter is corrected by the relationship between it and the rotational position of the electromagnetic motor.

摘要翻译： 单相电磁马达驱动控制器包括单相电磁马达，用于检测马达的旋转位置的位置检测机构和用于从检测到的旋转位置控制单相电磁马达的驱动的控制机构。 当使用电动机的转矩常数作为控制计算的参数时，通过其与电磁电动机的旋转位置的关系来校正转矩常数参数。

公开(公告)号：US5930066A

公开(公告)日：1999-07-27

申请号：US917696

申请日：1997-08-26

申请人： Kou Ishizuka ,  Hidejiro Kadowaki ,  Naoki Kawamata ,  Hiroyuki Hagiwara ,  Jun Ashiwa

发明人： Kou Ishizuka ,  Hidejiro Kadowaki ,  Naoki Kawamata ,  Hiroyuki Hagiwara ,  Jun Ashiwa

IPC分类号： G11B21/10 ,  G11B5/55 ,  G11B5/596 ,  G11B7/00

CPC分类号： G11B5/5534 ,  G11B5/59633

摘要： An apparatus records information on a hard disk with a magnetic head arm provided in a hard disk drive. The apparatus comprises an interference measuring system, containing an outgoing portion for a measuring light beam to the arm and a reference light forming portion, for obtaining relative displacement information with respect to the arm by interfering the reference light with reflected light of the measuring light from the arm or a slider belonging to the arm, the interference measuring system having a light beam deflecting member for deflecting the measuring light and thus guiding the measuring light to a lateral surface of the arm or of the slider, a control system for generating a signal for positioning the arm with respect to the hard disk on the basis of the relative displacement information obtained by the interference measuring system, and a signal system for transmitting a signal for recording information on the hard disk to the magnetic head.

摘要翻译： 设备在硬盘上记录有设置在硬盘驱动器中的磁头臂的信息。 该装置包括干涉测量系统，其包含用于测量光束到臂的出射部分和参考光形成部分，用于通过干涉参考光与来自测量光的反射光的相对位移信息来获得相对于臂的相对位移信息 所述臂或属于所述臂的滑块，所述干涉测量系统具有用于偏转所述测量光的光束偏转构件，并且因此将所述测量光引导到所述臂或所述滑块的侧表面;控制系统，用于产生信号 用于基于由干涉测量系统获得的相对位移信息相对于硬盘定位臂;以及信号系统，用于将用于将信息记录在硬盘上的信号发送到磁头。