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    Method and apparatus for operating a storage device
    1.
    发明专利
    Method and apparatus for operating a storage device 未知

    公开(公告)号：GB2490828B

    公开(公告)日：2017-05-10

    申请号：GB201214600

    申请日：2011-01-27

    Applicant: IBM

    Inventor： EVANGELOS STAVROS ELEFTHERIOU ,  WALTER HAEBERLE ,  JENS JELITTO ,  ANGELIKI PANTAZI

    IPC: G11B5/584

    Abstract: Method for operating a storage device with a tape and a head wherein the head comprises a first and a second read element. Each read element is operable to detect servo-pattern of a particular servo band. The first and the second read element are arranged such that the tape at first passes one of both read elements and subsequently passes the other of both read elements when the tape moves in a predetermined longitudinal direction. A tape transport direction of the tape along the longitudinal direction is determined. The first read element is selected dependent on the determined tape transport direction, when the determined tape transport direction represents a direction where the tape at first passes the first read element and subsequently the second read element. Otherwise the second read element is selected. A position error signal is determined dependent on the selected read element.

    Sensor arrangement for position sensing
    2.
    发明专利
    Sensor arrangement for position sensing 未知

    公开(公告)号：GB2552266A

    公开(公告)日：2018-01-17

    申请号：GB201711974

    申请日：2016-03-09

    Applicant: IBM

    Inventor： WALTER HAEBERLE ,  ANGELIKI PANTAZI ,  ABU SEBASTIAN ,  TOMAS TUMA

    IPC: G01V3/08 ,  G01R33/09

    Abstract: A sensor arrangement for position sensing comprises a first magnetoresistive element (1) and a second magnetoresistive element (2). A magnetic field source (3) provides a magnetic field with a first magnetic pole (N) and a second magnetic pole (S). The magnetic field source (3) is arranged between the first magnetoresistive element (1) and the second magnetoresistive element (2) with the first magnetic pole (N) facing the first magnetoresistive element (1) and the second magnetic pole (S) facing the second magnetoresistive element (2). The first magnetoresistive element (1) is arranged in the magnetic field and provides a first output signal (R1) dependent on a position of the first magnetoresistive element (1) relative to the magnetic field source (3). The second magnetoresistive element (2) is arranged in the magnetic field and provides a second output signal (R2) dependent on a position of the second magnetoresistive element (2) relative to the magnetic field source (3). A measurement unit is configured to determine a position of the magnetic field source (3) relative to the first and the second magnetoresistive elements (1, 2) dependent on the first output signal (R1) and the second output signal (R2).

    MECHANICAL DATA PROCESSING
    4.
    发明专利
    MECHANICAL DATA PROCESSING 未知

    公开(公告)号：MY134116A

    公开(公告)日：2007-11-30

    申请号：MYPI20020239

    申请日：2002-01-22

    Applicant: IBM

    Inventor： GERD K BINNIG ,  WALTER HAEBERLE

    IPC: G06K1/12 ,  G11B3/00 ,  G11B9/00 ,  G11B11/00 ,  G11B13/00

    Abstract: DESCRIBED IS A METHOD FOR ERASING DATA RECORDED IN A DATA STORAGE DEVICE IN WHICH A DATA BIT IS WRITTEN ONTO A SURFACE BY APPLYING A FIRST COMBINATION OF ENERGY AND FORCE TO THE SURFACE VIA A TIP TO FORM A PIT IN THE SURFACE REPRESENTATIVE OF THE DATA BIT BY LOCAL DEFORMATION OF THE SURFACE. THE METHOD COMPRISES APPLYING A SECOND COMBINATION OF ENERGY AND FORCE VIA THE TIP TO PRE RECORDED DEFORMATIONS OF THE SURFACE TO BE ERASED TO SUBSTANTIALLY LEVEL THE SURFACE.@@@FIGURE 1

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