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15 条记录 (耗时 0.012 秒)

    MAGNETORESISTIVE ANGLE SENSOR HAVING SEVERAL SENSING ELEMENTS
    1.
    发明授权
    MAGNETORESISTIVE ANGLE SENSOR HAVING SEVERAL SENSING ELEMENTS 有权
    具有多重感应组件磁阻角度传感器

    公开(公告)号：EP1232400B1

    公开(公告)日：2009-09-23

    申请号：EP01945239.0

    申请日：2001-05-31

    申请人： Koninklijke Philips Electronics N.V.

    发明人： ADELERHOF, Derk, J.

    IPC分类号： G01R33/09

    CPC分类号： G01D5/145 ,  G01R33/09 ,  Y10T29/49044

    摘要： A magnetoresistive angular sensor (1) is provided which determines a magnetic field direction. A high angular accuracy over a wide range of magnetic field strengths is obtained. The magnetoresistive angular sensor comprises a main sensing element (2) which is electrically connected to a first correction sensing element (6) with a first reference magnetization axis (9) and a second correction sensing element (8) with a second reference magnetization axis (10), the first (9) and the second (10) reference magnetization axes making correction angles υ between 5° and 85° of opposite sign with the main reference axis (3).

    MAGNETORESISTIVE ANGLE SENSOR HAVING SEVERAL SENSING ELEMENTS
    3.
    发明公开
    MAGNETORESISTIVE ANGLE SENSOR HAVING SEVERAL SENSING ELEMENTS 有权
    具有多重感应组件磁阻角度传感器

    公开(公告)号：EP1232400A1

    公开(公告)日：2002-08-21

    申请号：EP01945239.0

    申请日：2001-05-31

    申请人： Koninklijke Philips Electronics N.V.

    发明人： ADELERHOF, Derk, J.

    IPC分类号： G01R33/09

    CPC分类号： G01D5/145 ,  G01R33/09 ,  Y10T29/49044

    摘要： A magnetoresistive angular sensor (1) is provided which determines a magnetic field direction. A high angular accuracy over a wide range of magnetic field strengths is obtained. The magnetoresistive angular sensor comprises a main sensing element (2) which is electrically connected to a first correction sensing element (6) with a first reference magnetization axis (9) and a second correction sensing element (8) with a second reference magnetization axis (10), the first (9) and the second (10) reference magnetization axes making correction angles υ between 5° and 85° of opposite sign with the main reference axis (3).

    THIN FILM SHIELDED MAGNETIC READ HEAD DEVICE
    4.
    发明公开
    THIN FILM SHIELDED MAGNETIC READ HEAD DEVICE 审中-公开
    DUNNFILM屏蔽磁读写设备

    公开(公告)号：EP1048026A1

    公开(公告)日：2000-11-02

    申请号：EP99944475.5

    申请日：1999-08-23

    申请人： Koninklijke Philips Electronics N.V.

    发明人： COEHOORN, Reinder ,  KOOLS, Jacques, C., S. ,  ADELERHOF, Derk, J.

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3961 ,  G11B2005/3996

    摘要： A thin film shielded magnetic read head device comprises an end face extending in a first direction, in which a magnetic information carrier is movable with respect to the magnetic head device, and in a second direction, perpendicular to said first direction. The magnetic head device further comprises shield forming flux guiding elements (S1, S2) for magnetic cooperation with the information carrier, which elements extend in the second direction and in a third direction, perpendicular to the first and the second direction. A number of magnetoresistive elements (F1, IB, F2) each having a spin tunnel junction structure is provided, which number of magnetoresistive elements corresponds to the number of magnetic channels of the magnetic head device. One of said shields (S1) forms a common contact lead for the current through said magnetoresistive elements. The thin film magnetic read head device is applied in a system for reading information from a magnetic information carrier.

    METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD
    5.
    发明公开
    METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD 审中-公开
    处理的薄膜磁头的

    公开(公告)号：EP1034534A1

    公开(公告)日：2000-09-13

    申请号：EP99931254.9

    申请日：1999-07-02

    申请人： Koninklijke Philips Electronics N.V.

    发明人： ADELERHOF, Derk, J.

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3925 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/3967

    摘要： A method of manufacturing a thin-film magnetic head which is wear-resistant, on the one hand, but has only minimal transducing losses, on the other hand. A layer structure (3) is formed on a substrate (1), whereafter a wear-resistant material (9) is deposited on a surface constituted by a face of the substrate and a face of the layer structure. Before deposition of the wear-resistant material, the surface is selectively etched chemically, with the face of the substrate being moved backwards with respect to the face of the layer structure. After deposition of the wear-resistant material, wear-resistant material is removed from the face of the layer structure by means of a mechanical treatment, and a head face (10) is formed.

    MAGNETIC POSITION DETECTOR
    6.
    发明公开
    MAGNETIC POSITION DETECTOR 审中-公开
    磁性位置检测器

    公开(公告)号：EP1031038A1

    公开(公告)日：2000-08-30

    申请号：EP99923817.3

    申请日：1999-06-17

    申请人： Koninklijke Philips Electronics N.V.

    发明人： ADELERHOF, Derk, J.

    IPC分类号： G01P3/42 ,  G01B7/30 ,  G01D5/12

    CPC分类号： G01D5/147 ,  G01B7/30 ,  G01P3/488

    摘要： A magnetic position detector comprising a soft magnetic target wheel, a magnetic sensor and a permanent magnet. The invention relates to magnetoresistive sensors in several geometrical configurations of the target wheel, the sensor and the magnet. All configurations result in a big change of direction of the magnetic field at the location of the sensor as a result of a rotation of the target wheel. The configurations have in common that the direction of the magnetic fiel at the location of the sensor, as generated by the permanent magnet, is predominantly in the plane of the sensor surface, both when the sensor is next to a slot and next to a tooth of the target wheel, the surface of the sensor being substantially normal to the direction of movement of the target wheel.

    摘要翻译： 一种磁性位置检测器，包括软磁性目标轮，磁性传感器和永磁体。 本发明涉及目标轮，传感器和磁体的几种几何结构中的磁阻传感器。 由于目标轮的旋转，所有配置导致传感器位置处的磁场方向发生很大变化。 这些结构的共同之处在于，传感器位置处的磁场方向由永磁体产生，主要位于传感器表面的平面内，无论传感器位于槽旁边还是齿旁 传感器的表面基本垂直于目标轮的运动方向。

    Magnetic systems with irreversible characteristics and a method of manufacturing and repairing and operating such systems.
    7.
    发明公开
    Magnetic systems with irreversible characteristics and a method of manufacturing and repairing and operating such systems. 审中-公开
    磁系统与不可逆的特性和制造方法用于恢复和这种系统的操作

    公开(公告)号：EP1892538A2

    公开(公告)日：2008-02-27

    申请号：EP07115398.5

    申请日：2000-06-16

    申请人： Koninklijke Philips Electronics N.V.

    发明人： LENSSEN, Kars-Michiel, H. ,  ADELERHOF, Derk, J. ,  SOMERS, Gerardus, H., J. ,  VAN ZON, Hans ,  KUIPER, Antonius, E., T.

    IPC分类号： G01R33/09

    CPC分类号： B82Y25/00 ,  G01R33/093 ,  G01R33/096 ,  G11C11/16 ,  G11C11/161 ,  G11C11/1673 ,  G11C17/02 ,  H01L27/22 ,  H01L27/222

    摘要： A novel magnetic data storage system and a sensing system of magnetic characteristics are disclosed ; the systems have a magnetization direction that is irreversible in an external magnetic field. A method of manufacturing, a method of resetting or changing or repairing and a method of operating such systems are also disclosed. The systems can include a set of magnetic devices in a balancing configuration ; essentially each of said devices comprises a structure of layers including at least a first ferromagnetic layer and a second ferromagnetic layer with at least a separation layer of a non-magnetic material therebetween, said structure having at least a magneto resistance effect. The magnetization direction of the first ferromagnetic layer of at least one of said devices is irreversible in an external magnetic field higher than about 35 kA/m .

    摘要翻译： 一种新的磁数据存储系统和磁特性的感测系统是游离缺失盘; 该系统有一个磁化方向所做的是在外部磁场不可逆的。 制造的方法，被检查重置或改变或修复的方法和操作系统的方法，以便游离缺失盘。 该系统可以包括一组在一个平衡配置的磁性装置; 基本上每一个所述器件包括层，其包括至少一第一铁磁层和用至少一个非磁性材料那里之间，所述结构具有至少一个磁阻效应的分离层的第二铁磁层的结构。 所述装置中的至少一个的所述第一铁磁层的磁化方向是在外部磁场超过约35千安/米更高不可逆的。

    METHOD, OPTICAL RECORDING APPARATUS USING SUCH METHOD AND OPTICAL RECORDING MEDIUM FOR USE BY THE METHOD AND THE APPARATUS
    8.
    发明公开
    METHOD, OPTICAL RECORDING APPARATUS USING SUCH METHOD AND OPTICAL RECORDING MEDIUM FOR USE BY THE METHOD AND THE APPARATUS 审中-公开
    法，用供的方法和装置这样的方法·光学记录媒体光学记录设备

    公开(公告)号：EP1810286A1

    公开(公告)日：2007-07-25

    申请号：EP05797781.1

    申请日：2005-10-28

    申请人： Koninklijke Philips Electronics N.V.

    发明人： VAN DER VLEUTEN, Maarten ,  SPRUIT, Johannes, H., M. ,  ADELERHOF, Derk, J. ,  VAN DORST, Petrus, A., M. ,  ELFRINK, Rene, J., G.

    IPC分类号： G11B7/006

    CPC分类号： G11B7/0062

    摘要： A method for setting an optimum value of a write power level for use in an optical recording apparatus for writing information on a recording layer (3) of an optical recording medium (1) by means of a radiation beam (5) is described. The recording layer is able to change between an amorphous and a crystalline state. The apparatus comprises a radiation source (4) for emitting the radiation beam (5) having a controllable value of a write power level (PW) for recording information on the recording medium, a control unit (12) for recording a series of test patterns in a test area on the recording layer, each pattern being recorded with a different value of the write power level, a read unit (90) for reading the patterns and forming corresponding read signal portions, and first means (10, 101, 102) for deriving a value of a read parameter from at least one read signal portion and setting an optimum value (Popt) of the write power level based on the values of this read parameter. According to the invention the apparatus further comprises second means to perform at least one initial step (40) of at least partly amorphizing and subsequently recrystallizing the recording layer. In this way a consistent result for the determined optimum value (Popt) of the write power level (Pw) is obtained.