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6 条记录 (耗时 0.024 秒)

    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。

    Surface acoustic wave filter device with equalization of stray coupling
    3.
    发明授权
    Surface acoustic wave filter device with equalization of stray coupling 失效
    具有杂散耦合均衡的表面声波滤波器件

    公开(公告)号：US4314215A

    公开(公告)日：1982-02-02

    申请号：US168324

    申请日：1980-07-11

    申请人： Shigeo Tanji ,  Noboru Wakatsuki ,  Hideki Tominaga

    发明人： Shigeo Tanji ,  Noboru Wakatsuki ,  Hideki Tominaga

    IPC分类号： H03H9/145 ,  H03H3/08 ,  H03H9/02 ,  H03H9/05 ,  H03H9/64 ,  H03H9/25 ,  H03H9/42

    CPC分类号： H03H9/6496 ,  H03H9/02874 ,  H03H9/0296 ,  H03H9/058

    摘要： A surface acoustic wave filter device in which a capacitative coupling means is provided to couple at least one of the terminals of the SAW input transducer to at least one of the terminals of the output transducer, in order to equalize the levels of signals which are induced on the pair of output terminals of said output transducer without assuming the form of surface acoustic waves. The stray inductive coupling which normally occurs between the input and output terminals of the SAW filter degrades filter performance. Since the inductive coupling to the two output terminals is normally unequal, the inductively coupled unfiltered signals cannot be completely rejected by a balanced differential amplifier. By equalizing the levels of unfiltered signals at the output terminal, effective rejection by a differential amplifier is possible.

    摘要翻译： 一种表面声波滤波器装置，其中提供电容耦合装置以将SAW输入换能器的至少一个端子耦合到输出换能器的至少一个端子，以便均衡感应的信号电平 在所述输出换能器的一对输出端子上，而不采取表面声波的形式。 通常发生在SAW滤波器的输入和输出端子之间的杂散电感耦合会降低滤波器性能。 由于与两个输出端子的电感耦合通常是不相等的，电感耦合未滤波信号不能被平衡差分放大器完全拒绝。 通过均衡输出端子上未滤波信号的电平，差分放大器的有效抑制是可能的。

    Detecting apparatus for detecting input operation in a switching matrix
    4.
    发明授权
    Detecting apparatus for detecting input operation in a switching matrix 失效
    用于检测开关矩阵中的输入操作的检测装置

    公开(公告)号：US5081453A

    公开(公告)日：1992-01-14

    申请号：US405027

    申请日：1989-09-11

    申请人： Norio Endoh ,  Shigeo Tanji ,  Kazutoshi Hayashi ,  Hideo Yamada

    发明人： Norio Endoh ,  Shigeo Tanji ,  Kazutoshi Hayashi ,  Hideo Yamada

    IPC分类号： H03M11/00

    CPC分类号： H03M11/003

    摘要： An input detecting apparatus, method in a switching matrix in which a plurality of switches are provided in the form of a matrix, which discriminates a sneak pass signal current caused by overlapping keying of up to 10 switches and is provided with a switching matrix including a driver circuit, a detecting circuit, a first group of a plurality of lines (1.sub.0 -1.sub.6), each connected to the driver circuit (2), a second group of a plurality of lines (3.sub.0 -3.sub.6), each connected to the detecting circuit, and a plurality of switching devices including a resistor (6) and a switching element (5) serially arranged, one end of each switching device being connected to one of the first group of lines and the other end to one of the second group of lines, the driver circuit having a decoder (11) which in turn connects one end of each oen of the plurality of lines of the first group (1.sub.0 -1.sub.6 ) to an electrical source having 0 voltage, one by one, the detecting circuit having a selector ( 7) selectively connecting in turn one end of the plurality of lines of the second group (3.sub.0 -3.sub.6) to a voltage detecting circuit thereof, the rest of the end of the plurality lines of the second group being connected to a decoder in which the ends of the plurality lines of the second group are in turn opened in synchronization with the operation of the selector, and a means is provided for applying a predetermined voltage higher than the detecting voltage to detect the switching operation.

    Surface acoustic device having multistrip coupler comprised of alternate coupled and uncoupled strips
    6.
    发明授权
    Surface acoustic device having multistrip coupler comprised of alternate coupled and uncoupled strips 失效
    具有多行耦合器的表面声学装置包括备用耦合和非耦合条

    公开(公告)号：US4551695A

    公开(公告)日：1985-11-05

    申请号：US508546

    申请日：1983-06-28

    申请人： Shigeo Tanji ,  Noboru Wakatsuki

    发明人： Shigeo Tanji ,  Noboru Wakatsuki

    IPC分类号： H03H9/25 ,  H03H3/08 ,  H03H9/02 ,  H03H9/64

    CPC分类号： H03H9/02771 ,  H03H9/643

    摘要： A surface acoustic wave device comprising a first set of interdigital electrodes that generate surface acoustic waves, a second set of interdigital electrodes that receive and convert surface acoustic waves into electrical signals, and an intermediate electromechanical coupling element provided therebetween. The coupling element comprises a plurality of parallel strips formed on the surface of a piezoelectric substrate such as to receive and change the direction of propagation of the surface acoustic waves, each of these parallel strips being spaced at a predetermined distance from each other and connected therebetween in a given manner to obtain suitable stopband characteristics.

    摘要翻译： 一种表面声波装置，包括产生表面声波的第一组叉指电极，接收并将表面声波转换成电信号的第二组交指电极，以及设置在它们之间的中间机电耦合元件。 耦合元件包括形成在压电基板的表面上的多个平行条，以便接收和改变表面声波的传播方向，这些平行条中的每一条彼此隔开预定的距离并连接在它们之间 以给定的方式获得合适的阻带特性。