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    Magnetoresistance effect element sensor and an electronic circuit therefor
    1.
    发明授权
    Magnetoresistance effect element sensor and an electronic circuit therefor 失效
    磁阻效应元件传感器及其电子电路

    公开(公告)号：US5585719A

    公开(公告)日：1996-12-17

    申请号：US205378

    申请日：1994-03-04

    申请人： Michiko Endo ,  Nobuyoshi Shimizu ,  Shigemi Kurashima ,  Hiroshi Kajitani ,  Shigeo Tanji ,  Mieko Kawamoto

    发明人： Michiko Endo ,  Nobuyoshi Shimizu ,  Shigemi Kurashima ,  Hiroshi Kajitani ,  Shigeo Tanji ,  Mieko Kawamoto

    IPC分类号： G01D5/245 ,  G01D5/14 ,  G01D5/16 ,  G01P3/486 ,  G01P3/488 ,  G01D5/244 ,  G01N27/72

    CPC分类号： G01D5/142 ,  G01P3/486

    摘要： A magnetic sensor including a magnetoresistance effect element directed to prevent deterioration in the detection sensitivity occurring due to inversion of the magnetization of a plurality of ferromagnetic thin film stripes forming the magnetoresistance effect element with respect to the initial direction during the repeated operations, the magnetic sensor being arranged in such a manner that the magnetoresistance effect element is disposed at a position deviating from the center of the magnetic pole surface of a cylindrical magnet, preferably at a position deviating in a direction perpendicular to a direction in which the magnetic object to be detected is moved. The thus-employed arrangement enables a bias magnetic field to be applied to the magnetoresistance effect element in parallel to the deviation direction. Therefore, the magnetization of all of the plurality of the ferromagnetic thin film stripes forming the magnetoresistance effect element can be caused to face the same direction. As a result, the detection sensitivity can be stabilized because inversion of the magnetization can be prevented even if external magnetic fields are repeatedly applied.

    摘要翻译： 一种磁传感器，包括磁阻效应元件，其用于防止由于在重复操作期间相对于初始方向形成磁阻效应元件的多个铁磁性薄膜条的磁化反转而产生的检测灵敏度的劣化，磁传感器 以这样的方式布置，使得磁阻效应元件设置在偏离圆柱形磁体的磁极表面的中心的位置，优选地在垂直于待检测的磁性物体的方向的方向上偏离的位置 被移动 这样采用的布置使偏置磁场平行于偏转方向施加到磁阻效应元件。 因此，可以使形成磁阻效应元件的多个铁磁性薄膜条的所有磁化面朝向相同的方向。 结果，即使重复施加外部磁场，也可以防止磁化反转，从而可以稳定检测灵敏度。

    Position detection system, transmission device and reception device, and position detection method
    2.
    发明授权
    Position detection system, transmission device and reception device, and position detection method 有权
    位置检测系统，传输装置和接收装置，以及位置检测方法

    公开(公告)号：US09157984B2

    公开(公告)日：2015-10-13

    申请号：US13383522

    申请日：2010-07-02

    申请人： Junichi Miyamoto ,  Hiroshi Kajitani

    发明人： Junichi Miyamoto ,  Hiroshi Kajitani

    IPC分类号： G06F3/03 ,  G01S5/30 ,  G01S11/16 ,  G06F3/0354 ,  G06F3/043

    CPC分类号： G01S5/30 ,  G01S11/16 ,  G06F3/03545 ,  G06F3/043 ,  G06F3/0433

    摘要： A position detection system, includes at least one moving body (MB) including a transmission device simultaneously emitting a trigger signal indicating transmission timing and an ultrasonic signal obtained by modulating a signal of a frequency as a reference by pseudo random sequence data having high self-correlativity, and a reception device detecting MB position. The reception device includes ultrasonic reception units, a unit calculating a correlation value between a waveform of the ultrasonic signal and a model waveform of the pseudo random sequence, a unit subjecting the waveform of the ultrasonic signal and the model waveform to calculate a correlation value between the two waveforms, a unit calculating a propagation time of each ultrasonic to arrive at each of the ultrasonic reception units from trigger signal reception to correlation peak detection, and a unit calculating MB position from the ultrasonic propagation time and the interval length between the ultrasonic reception units.

    摘要翻译： 一种位置检测系统，包括至少一个移动体（MB），其包括同时发出指示发送定时的触发信号的发送装置和通过以高自适应方式的伪随机序列数据调制频率信号作为基准而获得的超声波信号， 相关性和检测MB位置的接收装置。 接收装置包括超声波接收单元，计算超声波信号的波形与伪随机序列的模型波形之间的相关值的单位，对超声波信号的波形和模型波形进行处理的单位， 所述两个波形是从触发信号接收到相关峰值检测计算每个超声波接收单元到达每个超声波接收单元的传播时间的单位，以及从超声波传播时间和超声波接收之间的间隔长度的单位计算MB位置 单位。

    Position detection apparatus, position detection method, mobile, and receiver
    3.
    发明授权
    Position detection apparatus, position detection method, mobile, and receiver 有权
    位置检测装置，位置检测方法，移动和接收器

    公开(公告)号：US09052781B2

    公开(公告)日：2015-06-09

    申请号：US13387958

    申请日：2010-04-21

    申请人： Junichi Miyamoto ,  Hiroshi Kajitani

    发明人： Junichi Miyamoto ,  Hiroshi Kajitani

    IPC分类号： G06F3/043 ,  G01S11/16

    CPC分类号： G06F3/0433 ,  G01S11/16

    摘要： To detect the positions of the respective mobiles correctly without being affected by the ultrasonic waves from other mobile(s) in a case where plural mobiles are used simultaneously.The mobile comprises a unit that transmits a trigger signal of requesting transmitting ultrasonic wave that is capable of identifying the mobile, a unit that receives a trigger signal of allowing transmitting ultrasonic wave from the receiver, and a unit that transmits an ultrasonic wave immediately upon receipt of the trigger signal of allowing transmitting ultrasonic wave. The receiver comprises a unit that receives a trigger signal of requesting transmitting ultrasonic wave from the mobile, a unit that transmits a trigger signal of allowing transmitting ultrasonic wave that can be identified at the mobile side, a control unit that controls a transmitting timing of the trigger signal of allowing transmitting ultrasonic wave, at least two ultrasonic wave receiving units provided at predetermined gaps, a unit that calculates an ultrasonic wave propagation time from the mobile based on a time of transmitting the trigger signal of allowing transmitting ultrasonic wave and an ultrasonic wave arrival time, and a position calculation unit that calculates a position of the mobile based on the ultrasonic wave propagation time calculated.

    摘要翻译： 在同时使用多个移动台的情况下，可以正确地检测各个移动台的位置，而不受来自其他移动台的超声波的影响。 移动台包括发送能够识别移动台的请求发送超声波的触发信号的单元，接收允许从接收器发送超声波的触发信号的单元，以及接收时立即发送超声波的单元 允许发送超声波的触发信号。 接收机包括接收从移动台请求发送超声波的触发信号的单元，发送允许发送可在移动侧识别的超声波的触发信号的单元，控制单元，其控制移动台的发送定时 允许发送超声波的触发信号，至少两个设置在预定间隙处的超声波接收单元，基于发送允许发送超声波的触发信号和超声波计算来自移动台的超声波传播时间的单元 到达时间，以及基于所计算的超声波传播时间来计算移动体的位置的位置计算单元。

    Position determination system, transmission device and reception device, and position determination method
    4.
    发明授权
    Position determination system, transmission device and reception device, and position determination method 有权
    位置确定系统，传输设备和接收设备以及位置确定方法

    公开(公告)号：US08498839B2

    公开(公告)日：2013-07-30

    申请号：US12810879

    申请日：2008-12-19

    申请人： Junichi Miyamoto ,  Hiroshi Kajitani

    发明人： Junichi Miyamoto ,  Hiroshi Kajitani

    IPC分类号： G01B21/00 ,  G06F11/30

    CPC分类号： G06F3/0433 ,  G01S5/30 ,  G01S7/5273 ,  G01S11/16 ,  G06F3/03545

    摘要： A moving body includes a transmission device which simultaneously sends out a trigger signal and an ultrasonic signal modulated by pseudo random sequence data, and a reception device which detects a position of the moving body. The reception device includes two ultrasonic reception units The reception device includes a unit which calculates a correlation value between a waveform of the ultrasonic signal and a modulation reference waveform of a pseudo random sequence data assigned to the moving body The reception device includes a unit which calculates a time of propagation of the ultrasonic to arrive at the two ultrasonic reception units from a time point of reception of the trigger signal and a time point of detection of a first peak of the correlation value, and a unit which calculates a position of the moving body based on the ultrasonic propagation time and an interval length between the ultrasonic reception units.

    摘要翻译： 移动体包括同时发出触发信号的发送装置和由伪随机序列数据调制的超声信号，以及检测移动体的位置的接收装置。 接收装置包括两个超声波接收单元接收装置包括计算超声波信号的波形与分配给移动体的伪随机序列数据的调制基准波形之间的相关值的单元。接收装置包括： 从触发信号的接收的时间点和相关值的第一峰值的检测时刻起，超声波传播到达两个超声波接收部的时间，以及计算移动的位置的单位 基于超声波传播时间和超声波接收单元之间的间隔长度。

    ULTRASONIC WAVE TRANSMITTER DEVICE, ULTRASONIC WAVE PROPAGATION TIME MEASUREMENT SYSTEM AND ULTRASONIC WAVE PROPAGATION TIME MEASUREMENT METHOD
    5.
    发明申请
    ULTRASONIC WAVE TRANSMITTER DEVICE, ULTRASONIC WAVE PROPAGATION TIME MEASUREMENT SYSTEM AND ULTRASONIC WAVE PROPAGATION TIME MEASUREMENT METHOD 有权
    超声波发射器装置，超声波传播时间测量系统和超声波传播时间测量方法

    公开(公告)号：US20120198937A1

    公开(公告)日：2012-08-09

    申请号：US13500066

    申请日：2010-10-06

    申请人： Hiroshi Kajitani ,  Junichi Miyamoto

    发明人： Hiroshi Kajitani ,  Junichi Miyamoto

    IPC分类号： G01H5/00

    CPC分类号： G06F3/043 ,  B06B1/023 ,  B06B1/0655 ,  B06B2201/70 ,  G01S11/16 ,  G06F3/03545 ,  G10K11/002

    摘要： An ultrasonic wave transmitter device includes an ultrasonic wave driving circuit that modulates an ultrasonic wave based on a pseudorandom signal to generate an ultrasonic wave driving signal, and an ultrasonic wave transmitter driven by the ultrasonic wave driving signal to send out an ultrasonic wave signal of a frequency higher than a fundamental frequency of the ultrasonic wave driving signal. The ultrasonic wave transmitter includes a cylindrically-shaped piezoelectric or magnetostrictive element sending out the ultrasonic wave signal and an ultrasonic wave absorber that covers part of a base member holding the piezoelectric or magnetostrictive element.

    摘要翻译： 超声波发送装置包括：超声波驱动电路，其根据伪随机信号调制超声波，生成超声波驱动信号;超声波发送器，由超声波驱动信号驱动，发送超声波信号， 频率高于超声波驱动信号的基频。 超声波发射器包括发出超声波信号的圆柱形压电或磁致伸缩元件和覆盖保持压电或磁致伸缩元件的基座部件的一部分的超声波吸收体。

    Magnetic head slider supporting assembly
    9.
    发明授权
    Magnetic head slider supporting assembly 有权
    磁头滑块支架

    公开(公告)号：US6151195A

    公开(公告)日：2000-11-21

    申请号：US131553

    申请日：1998-08-10

    申请人： Hiroshi Kajitani

    发明人： Hiroshi Kajitani

    IPC分类号： G11B21/21 ,  G11B5/48

    CPC分类号： G11B5/4826 ,  G11B5/484

    摘要： A magnetic head slider is mounted on a slider mounting portion 204 supported by gimbal arms. Each gimbal arm is connected to a beam suspension. The gimbal arm on the side of the magnetic head is wider and shorter than the other gimbal arm. In a seek operation, vibration occurs close to an in-plane rotational movement centered at the gimbal arm, since the supporting rigidity of the gimbal arm is higher than that of the gimbal arm due to the difference in configuration between the gimbal arms. An amount of off-track of the magnetic head is relatively small, since it is mounted on the side of the gimbal arm.

    摘要翻译： 磁头滑块安装在由万向臂支撑的滑块安装部分204上。 每个万向节臂连接到梁悬挂。 磁头侧面的万向臂比另一个万向臂更宽更短。 在寻道操作中，由于万向架臂之间的构型不同，万向臂的支撑刚度高于万向臂的支撑刚度，所以靠近以万向臂为中心的平面内旋转运动发生振动。 由于磁头安装在万向臂的一侧，因此磁头的偏离轨迹相对较小。

    Flying head slider in which adhesion of a liquid dust is suppressed
    10.
    发明授权
    Flying head slider in which adhesion of a liquid dust is suppressed 失效
    飞溅头滑块，其中抑制了液体灰尘的附着

    公开(公告)号：US6057983A

    公开(公告)日：2000-05-02

    申请号：US956793

    申请日：1997-10-23

    申请人： Hiroshi Kajitani

    发明人： Hiroshi Kajitani

    IPC分类号： G11B21/21 ,  G11B5/60

    CPC分类号： G11B5/6005

    摘要： In a flying head slider for holding an electro-magnetic transducer to have a given distance from a magnetic recording medium with air flow caused by rotation of the magnetic recording medium, a flow adjusting arrangement adjusts the air flow to reduce differential pressure of the air flow. The flying head has a principal surface facing the magnetic recording medium. The air flow is induced between the principal surface and the magnetic recording medium to float the flying head slider from the magnetic recording medium.

    摘要翻译： 在用于将电磁换能器保持在具有由磁记录介质的旋转引起的气流的磁记录介质给定距离的飞头滑块中，流量调节装置调节气流以减小气流的压差 。 飞头具有面向磁记录介质的主表面。 在主表面和磁记录介质之间引起空气流，以使飞头滑块从磁记录介质浮起。