Magnetic media with readable topographical features
    1.
    发明授权
    Magnetic media with readable topographical features 失效
    具有可读取形状特征的磁性介质

    公开(公告)号:US06751060B2

    公开(公告)日:2004-06-15

    申请号:US09730106

    申请日:2000-12-05

    Abstract: Magnetic patterned media comprise topographical features readable with a slider-mounted non-magnetic transducer sensitive primarily to a local aerodynamic boundary condition, in addition to a magnetic recording layer substantially conforming to the topographical features. Passage of a transducer over the features generates effects that can be detected in, and separated from, the magnetic recording signal.

    Abstract translation: 除了基本上符合形貌特征的磁记录层之外,磁性图案化介质还包括具有主要对局部空气动力学边界条件敏感的滑块安装的非磁性换能器可读的形状特征。 传感器通过特征产生可以在磁记录信号中检测和分离的效果。

    Perpendicular patterned magnetic media
    3.
    发明授权
    Perpendicular patterned magnetic media 有权
    垂直图案磁性介质

    公开(公告)号:US06999279B2

    公开(公告)日:2006-02-14

    申请号:US10283401

    申请日:2002-10-29

    Abstract: The invention is directed to patterned magnetic media for use in magnetic recording and data storage, and various conditioning techniques that can be used to magnetically condition the patterns. For example, a medium can be formed to exhibit a pattern of surface variations defined by patterned areas and non-patterned areas. Techniques are described for magnetically conditioning the patterned areas. The techniques may be useful for perpendicular patterned media, i.e., media having patterns formed on the media surface and having a magnetic anisotropy that is perpendicular to the plane of the medium. In particular, perpendicular magnetic anisotropy has been found to be an important factor that allows effective conditioning of patterned features having relatively small widths.

    Abstract translation: 本发明涉及用于磁记录和数据存储的图案化磁介质,以及可用于磁性调节图案的各种调理技术。 例如,可以形成介质以呈现由图案区域和非图案化区域限定的表面变化的图案。 描述了用于对图案化区域进行磁性调节的技术。 这些技术可能对垂直图案化介质有用,即介质具有在介质表面上形成的图案,并具有垂直于介质平面的磁各向异性。 特别地,已经发现垂直磁各向异性是允许有效调节具有相对较小宽度的图案特征的重要因素。

    Encoding techniques for patterned magnetic media
    4.
    发明授权
    Encoding techniques for patterned magnetic media 有权
    图案磁介质的编码技术

    公开(公告)号:US07050251B2

    公开(公告)日:2006-05-23

    申请号:US10606041

    申请日:2003-06-25

    CPC classification number: G11B5/1278

    Abstract: The invention is directed to patterned magnetic media for use in magnetic recording and data storage, and various encoding techniques that can be used to magnetically encode data on the patterned media. For example, a patterned magnetic recording medium can include a first set of surface variations and a second set of surface variations. The medium can be conditioned to magnetically expose the surface variations relative to areas between the respective surface variations. Detection of the surface variations in the first set can allow for synchronization of a magnetic drive to the medium. Following such synchronization, the magnetic drive can selectively apply magnetic fields to a second set of surface variations of the patterned magnetic medium to encode data on the patterned magnetic medium.

    Abstract translation: 本发明涉及用于磁记录和数据存储的图案化磁介质,以及可用于对图案化介质上的数据进行磁编码的各种编码技术。 例如,图案化的磁记录介质可以包括第一组表面变化和第二组表面变化。 可以调节介质以相对于各个表面变化之间的面积磁性地暴露表面变化。 检测第一组中的表面变化可以允许磁驱动器与介质的同步。 在这种同步之后,磁驱动器可以选择性地将磁场施加到图案化磁介质的第二组表面变化,以在图案化的磁介质上编码数据。

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