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    Thin-film magnetic head for reading and writing information
    1.
    发明授权
    Thin-film magnetic head for reading and writing information 失效
    用于读写信息的薄膜磁头

    公开(公告)号：US4300177A

    公开(公告)日：1981-11-10

    申请号：US1045

    申请日：1979-01-04

    申请人： Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

    发明人： Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

    IPC分类号： G11B5/39 ,  G11B5/48 ,  G11B5/49 ,  G11B5/58 ,  G11B15/12 ,  G11B5/12 ,  G11B5/30

    CPC分类号： G11B5/3925 ,  G11B15/12 ,  G11B5/3967 ,  G11B5/488 ,  G11B5/49 ,  G11B5/58

    摘要： A thin-film magnetic head for writing information in and reading information from a track of a magnetic recording medium in which the head comprises a magnetically permeable yoke having two limbs between which a writing/reading gap is formed. In a construction in which the limbs of the yoke overlap each other at the area of the writing/reading gap, they are bridged by a magneto-resistive reading element at a location remote from the reading/writing gap. A conductor is provided in some forms of the invention which extends intermediate the laterally overlapping limbs. This conductor is utilized for producing a writing flux in the magnetic yoke. Another conductor may be provided which extends through a window or opening in the yoke, which is remote from the reading/writing gap. This other conductor is utilized during writing operation to maximize efficiency.

    摘要翻译： 一种薄膜磁头，用于将信息写入磁记录介质的轨道中并从其中读取信息，其中该磁头包括具有两个分支之间形成写入/读取间隙的磁轭。 在这种结构中，轭的四肢在写入/读取间隙的区域彼此重叠，它们在远离读/写间隙的位置由磁阻读取元件桥接。 在本发明的一些形式中提供导体，其在横向重叠的肢体之间延伸。 该导体用于在磁轭中产生写入磁通。 可以提供另一个导体，其延伸穿过偏离读/写间隙的磁轭中的窗口或开口。 在写入操作期间使用另一个导体来最大限度地提高效率。

    Thin-film magnetic head for reading and writing information
    2.
    发明授权
    Thin-film magnetic head for reading and writing information 失效
    用于读写信息的薄膜磁头

    公开(公告)号：US4100583A

    公开(公告)日：1978-07-11

    申请号：US705050

    申请日：1976-07-14

    申请人： Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

    发明人： Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

    IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/48 ,  G11B5/49 ,  G11B5/58 ,  G11B15/12 ,  G11B5/30

    CPC分类号： G11B5/3925 ,  G11B15/12 ,  G11B5/3967 ,  G11B5/488 ,  G11B5/49 ,  G11B5/58

    摘要： A thin-film magnetic head for writing information in and reading information from a track of a magnetic recording medium in which the head comprises a magnetically permeable yoke having two limbs between which a writing and reading gap is formed. In a construction in which the limbs of the yoke are opposite to each other, one limb is interrupted by a gap which is bridged by a magneto-resistive reading element. In a construction in which the limbs of the yoke overlap each other at the area of the writing/reading gap, they are bridged by a magneto-resistive reading element in another place.

    摘要翻译： 一种薄膜磁头，用于将信息写入磁记录介质的轨道中并从其中读取信息，其中磁头包括具有两个分支的磁导磁轭，磁轭之间形成写入和读取间隙。 在轭的四肢彼此相反的结构中，一个肢体被由磁阻读取元件桥接的间隙中断。 在磁轭在写入/读取间隙的区域中彼此重叠的结构中，它们被另一个位置的磁阻读取元件桥接。

    Thin film magnetic head with a gap formed between a loop shaped core part and a bridging core part
    4.
    发明授权
    Thin film magnetic head with a gap formed between a loop shaped core part and a bridging core part 失效
    在环形芯部和桥接芯部之间形成间隙的薄膜磁头

    公开(公告)号：US4085430A

    公开(公告)日：1978-04-18

    申请号：US648408

    申请日：1976-01-12

    申请人： Jan T. Gerkema ,  Frederik Willem Gorter

    发明人： Jan T. Gerkema ,  Frederik Willem Gorter

    IPC分类号： G11B5/265 ,  G11B5/31 ,  G11B5/58 ,  G11B5/25 ,  G11B5/27

    CPC分类号： G11B5/265 ,  G11B5/31 ,  G11B5/58

    摘要： A thin-film magnetic head having improved playback properties in which the gap-bounding core parts overlap each other laterally while enclosing a layer having a gap and in which a first core part has the shape of a closed loop and is bridged in the center by a second core part. The parts of the first core part on either side of the bridge are provided with identical coils, while the first core part at the area of the overlap is divided centrally by an extra gap. Upon playing back, the difference signals of the coils then provides an indication as regards the position relative to the track.

    摘要翻译： 一种薄膜磁头，其具有改进的重放特性，其中间隙界定的芯部分横向彼此重叠，同时封闭具有间隙的层，并且其中第一芯部分具有闭环的形状并且通过 第二核心部分。 桥的任一侧上的第一芯部分的部分具有相同的线圈，而重叠区域的第一芯部分被中心地分开一个额外的间隙。 在回放时，线圈的差分信号随后提供关于相对于轨道的位置的指示。