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公开(公告)号：US07511907B2
公开(公告)日：2009-03-31
申请号：US11060627
申请日：2005-02-17
CPC分类号： G11B5/584 , G11B5/59638
摘要： The present invention relates to apparatuses and methods used in manufacturing magnetic tape. More specifically, the present invention relates to a method of writing a servo pattern on magnetic tape so as to minimize errors in the servo pattern, the heads used to write such servo data, and the magnetic tape manufactured with such heads. Errors in the servo pattern may be minimized by synthesizing the slanted transitions in a time based servo pattern using servo write gaps that are perpendicular to the tape motion. In so minimizing errors, distortion in the reading and/or writing of the data tracks can be prevented.
摘要翻译： 本发明涉及用于制造磁带的装置和方法。 更具体地说，本发明涉及一种将伺服图形写在磁带上的方法，以便最小化伺服模式中的误差，用于写入这种伺服数据的磁头以及用这种磁头制造的磁带。 可以通过使用垂直于带运动的伺服写入间隙在基于时间的伺服模式中合成倾斜转变来最小化伺服模式中的错误。 在这样最小化误差的情况下，可以防止读取和/或写入数据轨道的失真。
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32.发明授权Intergrated thin film subgap subpole structure for arbitrary gap pattern magnetic recording heads and method of making the same 失效用于任意间隙图案磁记录头的集成薄膜底隙子极结构及其制造方法公开(公告)号：US07450341B2
公开(公告)日：2008-11-11
申请号：US11120640
申请日：2005-05-03
CPC分类号： G11B5/3103 , G11B5/3163 , G11B5/3173 , G11B5/3179 , G11B5/3183 , G11B5/584
摘要： An arbitrary gap thin film magnetic recording head is fabricated by forming a substrate based on traditional vertical planar thin film head wafer technology which is designed to produce an integrated subgap and subpole substrate structure. The recording head includes a pair of magnetically permeable thin film subpoles, separated by a low permeability subgap structure. An electrically conductive coil may be embedded, in part, within the subgap structure. Thus, the subpoles and subgap structure form part of a magnetic circuit. A highly permeable magnetic surface film spans from one subpole to the other having one or more arbitrary gap patterns. That is, a surface thin film is deposited and patterned on the tape bearing surface of the head to optimize various element configurations, gap patterns and head-to-tape medium contact.
摘要翻译： 通过基于传统的垂直平面薄膜头晶片技术形成基板来制造任意的间隙薄膜磁记录头，该技术被设计成产生集成的子间隙和亚极基底结构。 记录头包括由低渗透性子隙结构隔开的一对导磁薄膜子笔。 导电线圈可以部分地嵌入在子间隙结构内。 因此，亚极和次间隙结构形成磁路的一部分。 高度可渗透的磁性表面膜从一个子极跨越到具有一个或多个任意间隙图案的另一个。 也就是说，表面薄膜被沉积并图案化在头部的带承载表面上，以优化各种元件构造，间隙图案和头对带介质接触。
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公开(公告)号：US06947247B2
公开(公告)日：2005-09-20
申请号：US10793502
申请日：2004-03-04
IPC分类号： G11B5/008 , G11B5/23 , G11B5/265 , G11B5/31 , G11B5/48 , G11B5/54 , G11B5/55 , G11B20/12 , G11B20/20 , G11B5/00
CPC分类号： G11B5/2651 , G11B5/00813 , G11B5/23 , G11B5/2652 , G11B5/3103 , G11B5/313 , G11B5/4893 , G11B5/54 , G11B5/5504 , G11B5/5513 , G11B20/1205
摘要： Large angle azimuth recording methods and devices. In one aspect of the invention methods of recording one or data tracks having data transitions oriented at a large azimuth angle are provided. In another aspect of the invention methods of reading a data track having data transitions oriented at a large azimuth angle are provided. Such methods include steps of suppressing a side track signal. In other aspects of the invention, head modules and devices for writing and/or reading large azimuth angle data tracks are provided.
摘要翻译： 大角度方位记录方法和装置。 在本发明的一个方面，提供了记录具有朝向大方位角的数据转换的一个或数据轨道的方法。 在本发明的另一方面，提供了读取具有以大方位角定向的数据转换的数据轨道的方法。 这样的方法包括抑制侧轨道信号的步骤。 在本发明的其他方面，提供了用于写入和/或读取大方位角数据轨道的头模块和装置。
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34.发明授权
公开(公告)号：US5434732A
公开(公告)日：1995-07-18
申请号：US113837
申请日：1993-08-30
CPC分类号： G11B5/584 , G11B5/5504
摘要： A mechanism for accurately positioning a recording/playback head on the center of a track including a stepper motor and coil assembly in combination controlling coarse and fine transverse head position. The coil is attached to a pivoting actuator arm which provides a mounting member for a recording/playback head. A torsion spring is attached to the actuator arm and to a stage which is driven by a stepper motor lead screw to incrementally position the actuator arm. The coil assembly operates to pivot the recording/playback head transversely, thereby providing fine position control, and is mounted together with other members at either sides of a pivot axis to provide a dynamically balanced structure.
摘要翻译： 一种用于在包括步进电机和线圈组件的轨道的中心上准确地定位记录/重放头的机构，其组合地控制粗略和细横向头部位置。 线圈连接到枢转致动器臂，其提供用于记录/重放头的安装构件。 扭力弹簧连接到致动器臂和由步进电机丝杠驱动的级，以逐步定位致动器臂。 线圈组件操作以横向地使记录/重放头枢转，从而提供精细的位置控制，并且与其他构件一起安装在枢转轴线的任一侧，以提供动态平衡的结构。
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公开(公告)号：US5331493A
公开(公告)日：1994-07-19
申请号：US933383
申请日：1992-08-21
申请人： Theodore A. Schwarz
发明人： Theodore A. Schwarz
CPC分类号： G11B5/3967 , G11B5/3103 , G11B5/4893 , G11B5/584
摘要： A bidirectional thin-film magnetoresistive tape head assembly. The invention minimizes wear on the head assembly by: (1) minimizing the distance between the read elements and their respective write elements, (2) forming the head assembly from hard materials, and (3) placing a hard block between the read and write elements. The head assembly uses only a single pair of read and write elements per data track, but the pairs are reversed with respect to each other so that the head assembly is capable of reading-while-writing on the tape in both directions.
摘要翻译： 双向薄膜磁阻磁头组件。 本发明通过以下方式使头部组件的磨损最小化：（1）最小化读取元件与它们各自的写入元件之间的距离，（2）从硬质材料形成头部组件，以及（3）在读取和写入之间放置硬块 元素。 头部组件每个数据轨道仅使用一对读取和写入元件，但是这些对相对于彼此反转，使得头部组件能够在两个方向上在磁带上书写。
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36.发明授权Method of making a magnetoresistive head with integrated bias and magnetic shield layer 失效制造具有集成偏置和磁屏蔽层的磁阻头的方法
公开(公告)号：US5312644A
公开(公告)日：1994-05-17
申请号：US122690
申请日：1993-09-17
CPC分类号： G11B5/3912 , G11B5/3961
摘要： A thin-film magnetoresistive playback head having films providing magnetic shielding and magnetic bias. At least one of the magnetic shield layers is also conductive so that the functions of shielding and biasing are combined. Preferably, both shield layers are conductive. A multiple element channel head is disclosed in which the magnetic/conductive layers extend in series from one transducer section to the next, allowing a single bias current to bias all of the sections.
摘要翻译： 具有提供磁屏蔽和磁偏置的膜的薄膜磁阻重放头。 磁屏蔽层中的至少一个也是导电的，使得屏蔽和偏置的功能被组合。 优选地，两个屏蔽层是导电的。 公开了一种多元件通道头，其中磁/导电层从一个换能器部分串联延伸到下一个，允许单个偏置电流偏置所有部分。
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公开(公告)号：US4863114A
公开(公告)日：1989-09-05
申请号：US208367
申请日：1988-06-17
CPC分类号： G11B23/34 , G11B15/08 , G11B23/08714
摘要： A data cartridge includes a length of magnetic tape which is formed at each end with a first pattern of holes to enable identification of the end of the tape and a second pattern of holes located within the first pattern of holes and configured to provide a binary code to enable automatic identification of the cartridge type or tape type. The first pattern of holes is different at each end of the tape to further enable the automatic differentiation of one end of the tape from the other end.
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