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32 条记录 (耗时 0.033 秒)

    Write head
    1.
    发明授权
    Write head 有权
    写头

    公开(公告)号：US08941949B1

    公开(公告)日：2015-01-27

    申请号：US14278791

    申请日：2014-05-15

    申请人： International Business Machines Corporation

    发明人： Giovanni Cherubini ,  Johan B. C. Engelen ,  Simeon Furrer ,  Jens Jelitto ,  Mark A. Lantz ,  Hugo E. Rothuizen

    IPC分类号： G11B5/265

    CPC分类号： G11B5/5926 ,  G11B5/00826 ,  G11B5/23 ,  G11B5/2654

    摘要： A write head is provided for writing a servo pattern to a magnetic tape storage medium. The write head comprises at least a first write gap (A) and a second write gap (B), the first write gap (A) and the second write gap (B) being separately energizable. The second write gap (B) comprises at least a first section (a) and a second section (b). The first section (a) is designed such that an energization of the second write gap (B) causes a magnetic flux across the first section (a) insufficient for changing a magnetization of a track of the magnetic tape storage medium (TP) passing the first section (a) of the second write gap (B). The second section (b) is designed such that an energization of the second write gap (B) causes a magnetic flux across the second section (b) sufficient for magnetizing a track of the magnetic tape storage medium (TP) passing the second section (b) of the second write gap (B).

    摘要翻译： 提供写头用于将伺服图案写入磁带存储介质。 写入头包括至少第一写入间隙（A）和第二写入间隙（B），第一写入间隙（A）和第二写入间隙（B）可分别通电。 第二写入间隙（B）至少包括第一部分（a）和第二部分（b）。 第一部分（a）被设计成使得第二写入间隙（B）的通电导致穿过第一部分（a）的磁通量不足以改变通过该磁带存储介质（TP）的磁道的磁化 第二写入间隙（B）的第一部分（a）。 第二部分（b）被设计成使得第二写入间隙（B）的通电导致穿过第二部分（b）的磁通量足以磁化通过第二部分的磁带存储介质（TP）的轨道（ b）第二写入间隙（B）。

    Magnetic head with write element offset from read element
    3.
    发明授权
    Magnetic head with write element offset from read element 有权
    磁头与写入元件偏离读取元件

    公开(公告)号：US06600636B1

    公开(公告)日：2003-07-29

    申请号：US09416135

    申请日：1999-10-12

    申请人： Bruce Liikanen ,  Terry Schemmel ,  Jenny Himle

    发明人： Bruce Liikanen ,  Terry Schemmel ,  Jenny Himle

    IPC分类号： G11B5127

    CPC分类号： G11B5/3903 ,  G11B5/012 ,  G11B5/02 ,  G11B5/127 ,  G11B5/2654 ,  G11B5/332 ,  G11B5/3967 ,  G11B5/4886 ,  G11B5/59683

    摘要： A computer disk drive transducer head having spatially separated read and write heads is provided. The transducer head reduces or eliminates servo errors during write operations by positioning the read head of the transducer away from the write head. This spatial separation prevents the disruption of magnetic domains in the read head, and in particular in the magnetoresistive element and the shields in the immediate vicinity of the magnetoresistive element. The present invention further provides a method for reducing servo errors during write operations by spatially separating the read and write heads by a distance sufficient to limit the strength of a magnetic field produced in the read head during a write operation to no greater than the strength of a magnetic field produced in the read head by the magnetic disk.

    摘要翻译： 提供具有空间分离的读写头的计算机磁盘驱动器换能器头。 换能器头通过将换能器的读头放置在远离写入头的位置来减少或消除写入操作期间的伺服误差。 这种空间分离防止读磁头中的磁畴的破坏，特别是磁阻元件和磁阻元件紧邻附近的屏蔽。 本发明还提供了一种用于通过将读写头空间分开一定距离的方式来减少写入操作期间的伺服误差的方法，该距离足以将写入操作期间在读头中产生的磁场的强度限制在不大于 通过磁盘在读取头中产生的磁场。

    Magnetic head
    5.
    发明授权
    Magnetic head 失效
    磁头

    公开(公告)号：US5499150A

    公开(公告)日：1996-03-12

    申请号：US328567

    申请日：1994-10-24

    申请人： Jiro Kawana ,  Katsuaki Kanaya

    发明人： Jiro Kawana ,  Katsuaki Kanaya

    IPC分类号： G11B5/265 ,  G11B5/024 ,  G11B5/09 ,  G11B5/17

    CPC分类号： G11B5/024 ,  G11B5/09 ,  G11B5/17 ,  G11B5/2654

    摘要： It is an object of the present invention to decrease imbalance of a recording magnetic field of a read/write head generated due to leakage of an erase magnetic field of an antecedent erase head, and to decrease the error rate at a time of reading data. The number of turns of a second read/write coil generating a magnetic field for recording data having one polarity in a direction opposite to that of a leakage magnetic field generated by an erasing coil is made smaller than that of a first read/write coil generating a magnetic field for recording data having the other polarity in the same direction as the leakage magnetic field, whereby rise time of a recording electric current flowing in the second read/write coil is shortened and a magnetic field thus generated is made stronger than the magnetic field generated by the first read/write coil, thus reducing the influence of the leakage magnetic field so as to enable uniform writing of data having both polarities and decreasing an error rate at a time of reading the recorded data.

    摘要翻译： 本发明的一个目的是减少由于先前擦除磁头的擦除磁场的泄漏而产生的读/写磁头的记录磁场的不平衡，并且降低读取数据时的误码率。 产生磁场的第二读/写线圈的匝数与用于由擦除线圈产生的泄漏磁场的方向相反的方向记录具有一个极性的数据的磁场的匝数小于产生第一读/写线圈的数量 用于记录具有与漏磁场相同方向的另一极性的数据的磁场，从而缩短在第二读/写线圈中流动的记录电流的上升时间，使得如此产生的磁场比磁 由此减小泄漏磁场的影响，从而能够均匀地写入具有两极性的数据，并且在读取记录数据时降低错误率。

    Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle
    8.
    发明申请
    Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle 失效
    具有可调节机构的磁盘装置，用于补偿具有偏航角的偏离跟踪位置的写入或加热元件

    公开(公告)号：US20040027709A1

    公开(公告)日：2004-02-12

    申请号：US10633621

    申请日：2003-08-05

    发明人： Takehiko Hamaguchi ,  Atsushi Nakamura ,  Yasutaka Nishida ,  Masafumi Mochizuki ,  Hideki Sawaguchi

    IPC分类号： G11B005/02

    CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/105 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/2654 ,  G11B5/4886 ,  G11B5/56 ,  G11B2005/001 ,  G11B2005/0021

    摘要： In a thermal assisted type magnetic disk apparatus having a head holding a heat element and a write element, in which coercivity of a disk is locally reduced by temperature-increasing the disk and writing is performed by the write element, along with a seek operation to move the head by a rotary actuator in a radial direction, a yaw angle is changed and a heat area and the write element are track-shifted. A mechanism to offset one of the heat area and the write element in a width direction of a slider, to array the heat element and the write element in a track running direction in correspondence with the yaw angle of the head.

    摘要翻译： 在具有保持加热元件的头部和写入元件的热辅助型磁盘装置中，通过写入元件，通过写入元件执行盘的矫顽力局部减小并且进行寻道操作 通过旋转致动器在径向方向上移动头部，改变偏航角，并且对热区域和写入元件进行轨道移动。 一种抵消滑块的宽度方向上的加热区域和写入元件中的一个的机构，用于使加热元件和写入元件沿与磁头的偏航角相对应的磁道行进方向排列。