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    61.
    发明专利
    未知

    公开(公告)号：DE69717094D1

    公开(公告)日：2002-12-19

    申请号：DE69717094

    申请日：1997-07-18

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MURARI BRUNO ,  VIGNA BENEDETTO ,  FERRARI PAOLO

    IPC: G11B5/127 ,  G11B5/265 ,  G11B5/29 ,  G11B5/31 ,  G11B5/39 ,  G11B5/48 ,  G11B5/55 ,  G11B5/33 ,  G11B5/596

    Abstract: A head (130) for a disk storage device having a plurality of tracks (117) divided into memory cells (234) comprises means (205, 230a, 230b, 250a, 250b) for reading the memory cells (234) in succession, the means (205, 230a, 230b, 250a, 250b) for reading the memory cells (234) including at least two partial reading means (206a, 230a, 250a; 206b, 230b, 250b) each for reading a portion (234a; 234b) of each memory cell (234), the portions (234a; 234b) being arranged transversely relative to the longitudinal axis (233) of the corresponding track (117).

    62.
    发明专利
    未知

    公开(公告)号：DE69617674D1

    公开(公告)日：2002-01-17

    申请号：DE69617674

    申请日：1996-09-10

    Applicant: ST MICROELECTRONICS SRL

    Inventor： VIGNA BENEDETTO ,  FERRARI PAOLO ,  MASTROMATTEO UBALDO

    IPC: G01P15/125 ,  B81B3/00 ,  B81C1/00 ,  G01P15/11 ,  H01L29/84 ,  G01P1/00

    Abstract: An acceleration sensor is described which is formed by planar technology on a substrate (10). It includes a core (11) of ferromagnetic material and, coupled conductively together by the core, a first winding (13) adapted to be connected to a power supply (14) and a second winding (15) adapted to be connected to circuit means (16) for measuring an electrical magnitude induced therein. The core (11) has two suspended portions which are free to bend as a result of an inertial force due to an accelerative movement of the sensor itself. The bending causes lengthening of the core (11) and hence a variation in the reluctance of the magnetic circuit. If a constant current is supplied to the first winding (13), a voltage is induced in the second winding (15) as a result of the variation in the magnetic flux caused by the variation in reluctance.

    63.
    发明专利
    未知

    公开(公告)号：ITTO20010519D0

    公开(公告)日：2001-05-31

    申请号：ITTO20010519

    申请日：2001-05-31

    Applicant: ST MICROELECTRONICS SRL

    Inventor： SASSOLINI SIMONE ,  VIGNA BENEDETTO

    IPC: G11B5/55 ,  G11B5/60

    Abstract: In an actuator device for hard disks a suspension element carries a slider that is subject to undesired vibrations which give rise to rotations of the slider with respect to a nominal position. An electrostatically controlled position-control structure is arranged between the suspension and the slider and is controlled in an active way so as to generate torsions of the platform that counter the undesired rotations. The position-control structure comprises a platform of conductive material and control electrodes arranged underneath the platform. The platform is connected to a load-bearing structure by spring elements that enable movements of roll and pitch. Four control electrodes are arranged according to the quadrants of a square and can be selectively biased for generating electrical forces acting on the platform.

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