Rotation sensor
    2.
    发明授权
    Rotation sensor 有权
    旋转传感器

    公开(公告)号:US06323644B1

    公开(公告)日:2001-11-27

    申请号:US09422973

    申请日:1999-10-22

    IPC分类号: G01R730

    CPC分类号: B82Y25/00 G01R33/093

    摘要: The present invention improves the sensitivity and expands the temperature range of operation of a magnetic detection device used in conjunction with rotary shafts such as those found in automobiles. A magnetic detection element consists of a giant magnetoresistance element and an integrated circuit for performing a predetermined operational processing based on the variation of magnetic field detected by the giant magnetoresistance element, and the magnetic detection element is operated in the magnetic field in the range of exceeding the magnetic field for maximizing the resistance value of the giant magnetoresistance element and below the field obtained by multiplying the saturation magnetic field of the giant magnetoresistance element by 0.8.

    摘要翻译: 本发明提高了灵敏度,并且扩大了与诸如在汽车中发现的旋转轴一起使用的磁检测装置的操作温度范围。 磁检测元件由巨磁阻元件和集成电路组成,用于基于由巨磁电阻元件检测到的磁场的变化执行预定的操作处理,并且磁检测元件在超出范围内的磁场中操作 用于使巨磁电阻元件的电阻值最大化并且低于通过将巨磁电阻元件的饱和磁场乘以0.8而获得的场的磁场。

    Magnetic thin film memory and recording/reproduction method therefor
    4.
    发明授权
    Magnetic thin film memory and recording/reproduction method therefor 失效
    磁性薄膜存储器及其记录/再现方法

    公开(公告)号:US5448515A

    公开(公告)日:1995-09-05

    申请号:US107148

    申请日:1993-08-17

    IPC分类号: G11C11/15 G11C11/14

    CPC分类号: G11C11/15

    摘要: A magnetic thin film memory is provided including a plurality of magnetic thin film memory elements each adapted to record information on the basis of the direction of magnetization of a magnetic thin film thereof, the magnetic thin film memory elements being each composed of at least the magnetic thin film and a switching element. With such a constitution the magnetic thin film memory can be reduced in size while a sufficiently large signal can be obtained with a substantially improved SN ratio. A method for recording and reproduction information using the magnetic thin film memory is also provided. In another aspect, the present invention provides a magnetic thin film memory element including at least two kinds of magnetic layer, and a nonmagnetic layer which is interposed between the magnetic layers wherein the two kinds of magnetic layers are stacked so as to be coupled to each other by an exchange interaction through the nonmagnetic layer.

    摘要翻译: 提供磁性薄膜存储器,其包括多个磁性薄膜存储元件,每个磁性薄膜存储元件适于基于其磁性薄膜的磁化方向记录信息,磁性薄膜存储元件至少由至少磁性 薄膜和开关元件。 通过这样的结构,可以减小磁性薄膜存储器的尺寸,同时可以以基本上提高的SN比获得足够大的信号。 还提供了一种使用磁性薄膜存储器进行记录和再现信息的方法。 另一方面,本发明提供一种包括至少两种磁性层的磁性薄膜存储元件和介于两层磁性层之间的磁性层之间的非磁性层,以便耦合到每个磁性层 另外通过非磁性层的交换相互作用。

    Sensor element and its manufacturing method
    7.
    发明授权
    Sensor element and its manufacturing method 有权
    传感器元件及其制造方法

    公开(公告)号:US06732583B1

    公开(公告)日:2004-05-11

    申请号:US10030426

    申请日:2002-04-01

    IPC分类号: G01F168

    摘要: The present invention provides a sensor element having a sensor substrate and a sensing portion supported by the sensor substrate. A resin film is provided between the sensor substrate and the sensing portion. The resin film has a high heat resistance to the temperature of the fabrication process and the use of sensor element, has excellent coverage of a three-dimensional structure, has a flat surface, applies a low stress to the sensing portion, is formed at low temperature, and prevents the sensing portion from being adversely affected in its fabrication process.

    摘要翻译: 本发明提供一种传感器元件,其具有传感器基板和由传感器基板支撑的感测部分。 在传感器基板和检测部之间设置有树脂膜。 该树脂膜对制造工艺的温度和传感器元件的使用具有高的耐热性,具有优异的三维结构覆盖,具有平坦的表面,对感测部分施加低应力,形成在低 温度,并且防止感测部分在其制造过程中受到不利影响。

    Information storage system
    10.
    发明授权
    Information storage system 失效
    信息存储系统

    公开(公告)号:US5337305A

    公开(公告)日:1994-08-09

    申请号:US016030

    申请日:1993-02-10

    摘要: An information storage system for recording and reproducing information by use of irradiating light on a medium capable of overwriting information is provided. The information storage system is capable of recording information even if the light intensity is varied so as to enhance reliability. The intensity of the light at the time of overwriting is modulated, the more intense light intensity being P.sub.H and the less intense light intensity being P.sub.L. The system includes a mechanism to keep relationship of P.sub.H +.alpha.P.sub.L equal to a constant (.alpha. being a constant depending on the recording conditions). The laser drive circuit is so adjusted that P.sub.H and P.sub.L always provide an optimal condition even if P.sub.H and/or P.sub.L vary. Thus recording can always be performed under optimal conditions to enhance the reliability of the information storage system to expand the power margin of a recording medium and to increase the percentage yield of information medium.

    摘要翻译: 提供了一种用于通过在能够覆盖信息的介质上照射光来记录和再现信息的信息存储系统。 信息存储系统即使改变光强度也能够记录信息,从而提高可靠性。 调制重写时光强度,光强度越高,PH越强,光强度越小。 该系统包括保持PH +αPL的关系等于一个常数的机制(根据记录条件,α是一个常数)。 激光驱动电路如此调整,即使PH和/或PL变化,PH和PL总是提供最佳条件。 因此,可以始终在最佳条件下执行记录,以增强信息存储系统的可靠性,以扩大记录介质的功率余量并提高信息介质的产量百分比。