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158 条记录 (耗时 0.012 秒)

    Magnetic record disk with internal servo track
    81.
    发明公开
    Magnetic record disk with internal servo track 失效
    Magnetische Aufzeichnungsplatte mit interner Servospur。

    公开(公告)号：EP0125478A2

    公开(公告)日：1984-11-21

    申请号：EP84103878.9

    申请日：1984-04-09

    申请人： International Business Machines Corporation

    发明人： Krongelb, Sol ,  Romankiw, Lubomyr Taras ,  Scranton, Robert Alan ,  Thompson, David Allen

    IPC分类号： G11B5/82 ,  G11B5/70

    CPC分类号： G11B5/596 ,  G11B5/012 ,  G11B5/82

    摘要： A servo track in the form of a patterned thin metallic film (15; 25) is disposed between a magnetic record medium (14;: 24) and a dielectric substrate (12; 22). The dielectric substrate (12; 22) can be in the form of a coating on a metallic substrate (11; 21). Where the magnetic record medium is composed of magnetic particles bound in a matrix, the matrix and the dielectric substrate are preferably composed of the same material. An additional layer (26, Figure 2) of dielectric material may be disposed between the metallic servo track film (25) and the magnetic record medium (24).

    摘要翻译： 在磁记录介质（14; 24）和电介质基片（12; 22）之间设置呈图形化金属薄膜（15; 25）形式的伺服磁道。 电介质基板（12; 22）可以是金属基板（11; 21）上的涂层形式。 在磁记录介质由以矩阵结合的磁性颗粒组成的情况下，基体和电介质基底优选由相同的材料构成。 介电材料的附加层（26）可以设置在金属伺服轨道膜（25）和磁记录介质（24）之间。

    Magnetic-recording method and apparatus; magnetic record medium produced by such method and method of using such record medium
    82.
    发明公开
    Magnetic-recording method and apparatus; magnetic record medium produced by such method and method of using such record medium 失效
    磁记录方法和装置; 通过该方法，磁性记录介质和使用这种记录介质的方法产生的。

    公开(公告)号：EP0030301A2

    公开(公告)日：1981-06-17

    申请号：EP80107235.6

    申请日：1980-11-20

    申请人： International Business Machines Corporation

    发明人： Cheatham, Samuel David ,  Haynes, Munro King

    IPC分类号： G11B5/00 ,  G11B5/02

    CPC分类号： G11B5/02 ,  G11B5/488 ,  G11B5/596 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/90

    摘要： ©7 A reference signal to be stabilized in a magnetic record member is recorded via a head Hl having a given maximal gap length and pole pieces of high saturation induction. After the reference signal is recorded, the magnetic record member is surface erased for stabilizing the just recorded reference signal. The surface erasing is performed by AC erasing via a transducer H2 having a gap length less than said maximal gap length. The pole pieces of the erasing head need not have the high saturation induction of the first mentioned head. After such stabilization, information signals can be easily recorded and recovered from the magnetic record member by using transducers H3 with gap lengths less than the given maximal gap length of head Hl and using normal ferrite heads having a lower saturation induction than the head H1. The reference signal can serve as a position indicating signal in a magnetic record member, such as a storage disk ortape. The reference signal can also be used for other purposes, such as phase control for recording and in a controlled access or security system.

    摘要翻译： 在一个磁性记录部件被稳定的基准信号经由具有高饱和感应的给定的最大间隙长度和磁极件的头部H1记录。 参考信号被记录后，将记录磁性构件被用于稳定刚刚记录的参考信号被擦除的表面。 表面被擦除经由具有间隙长度大于所述最大间隙长度更小的换能器H2执行者AC擦除。 擦除头的极片不需要有第一个提到的头的高饱和磁感应强度。 求稳定后，信息信号可以被记录，并通过使用换能器与H3间隙长度小于头部H1的给定的最大间隙长度，并使用具有较低饱和感应比头部H1正常铁氧体磁头从磁性记录部件容易地回收。 该基准信号可以作为在磁性记录部件的位置指示信号：诸如存储磁盘或磁带。 因此，该参考信号可以被用于其他目的，颜色：诸如用于记录相位控制和在受控访问或安全系统。

    READ/WRITE HEAD AND MAGNETIC RECORDING DEVICE
    89.
    发明公开
    READ/WRITE HEAD AND MAGNETIC RECORDING DEVICE 审中-公开
    LESE- SCHREIBKOPF UND MAGNETAUFZEICHNUNGSVORRICHTUNG

    公开(公告)号：EP1202254A4

    公开(公告)日：2005-06-08

    申请号：EP00946403

    申请日：2000-07-19

    申请人： HITACHI MAXELL

    发明人： WAKABAYASHI KOUICHIROU ,  TAKEUCHI TERUAKI ,  INABA NOBUYUKI

    IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/48 ,  G11B5/596 ,  G11B13/04 ,  G11B5/02 ,  G11B11/10 ,  G11B11/105

    CPC分类号： G11B5/127 ,  G11B5/00 ,  G11B5/012 ,  G11B5/3103 ,  G11B5/3967 ,  G11B5/4886 ,  G11B5/596 ,  G11B5/59627 ,  G11B5/59655 ,  G11B5/59683 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021

    摘要： A magnetic recorder includes a laser source (132), a magnetic write head (131), and a magnetoresistive device placed between a pair of magnetic poles (100, 101) of the magnetic head. A rotary actuator (Sa) positions the magnetic write head to a desired track on a magnetic medium. The magnetic medium is irradiated with a laser beam to heat an area as wide as the track so that the coercive force of the heated area may decrease where a recording field is applied for high-density recording. An angle of yaw (υ) of the rotary actuator relative to the track will not hinder the magnetic write head (131) and the read device from following data tracks. The size of the magnetic poles (100, 101) of the magnetic write head is determined within a predetermined range to keep the laser-heated area (302) within a region (303) where a magnetic recording field is applied.

    摘要翻译： 磁记录装置包括激光源（132），记录磁头（131）和磁阻元件。 记录磁头包括一对磁极（100和101），其间插有磁阻元件。 旋转致动器（Sa）将记录磁头定位在磁记录介质的期望轨道处。 可以将激光束照射到磁记录介质上以升高介质的区域（302）的温度。 该区域具有轨道宽度顺序的宽度。 升高的温度降低了该区域的矫顽力，其中可以应用记录磁场用于高密度记录。 旋转致动器可以与磁记录介质的轨道形成偏转角（＆amp;θ）。 即使在这种情况下，记录磁头（131）和再现元件也没有跟踪轨迹的跟踪偏移。 此外，如果记录磁头的磁极（100和101）的尺寸设定在预定范围内，则由激光束加热的区域（302）不会偏离记录磁场施加区域（303） 。

    Head positioning in a disk storage apparatus
    90.
    发明公开
    Head positioning in a disk storage apparatus 有权
    Kopfpositionierung在einemPlattenspeichergerät

    公开(公告)号：EP1237152A3

    公开(公告)日：2003-07-02

    申请号：EP02004141.4

    申请日：2002-02-25

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Inaji, Toshio ,  Kohso, Hiroshi

    IPC分类号： G11B5/55 ,  G11B21/10

    CPC分类号： G11B5/5582 ,  G11B5/5521 ,  G11B5/596

    摘要： A disk storage apparatus including a position detection section (13) for producing position error information (e) corresponding to the current position of a head (2) from servo information which has been previously recorded on a disk (1) and is detected by the head (2), a position control section (14) for producing position control information (c) corresponding to the position error information, a voltage detection section (11) for detecting a voltage generated in driving an actuator (7) for positioning the head (2) with respect to the disk (1), and for outputting a voltage signal, a disturbance estimation section (12) for estimating the magnitude of a disturbance exerted on the head (2) from the voltage signal by the voltage detection section (11) and from a drive signal by a drive section (10) of the actuator, and producing disturbance estimation information, a correction section (15) for correcting the position control information (c) by the position control section (14) with the disturbance estimation information and producing the drive signal, and a disturbance monitor section (18) for monitoring the disturbance estimation information, and prohibiting a record by the head (2) if the disturbance estimation information exceeds an allowable range, wherein even if the head (2) is largely dislocated from a target track due to a large shock or vibration at data recording, an erroneous erasing of the adjacent track can be prohibited.

    摘要翻译： 一种磁盘存储装置，包括：位置检测部分，用于根据先前记录在磁盘（1）上的伺服信息产生与磁头（2）的当前位置对应的位置误差信息（e），并由 头部（2），用于产生与位置误差信息对应的位置控制信息（c）的位置控制部（14），用于检测驱动致动器（7）时产生的电压的电压检测部（11） （2）相对于盘（1）输出，并且用于输出电压信号;干扰估计部（12），用于通过电压检测部（12）估计从电压信号施加在头（2）上的干扰的大小 11），并且由驱动部分（10）的驱动信号和致动器的驱动信号产生干扰估计信息;校正部分（15），用于通过位置控制部分（14）用二进制 干扰估计信息和产生驱动信号;以及干扰监视部分（18），用于监视干扰估计信息，并且如果干扰估计信息超过允许范围则禁止头部（2）的记录，其中即使头部 2）由于数据记录时的大的冲击或振动而大大地偏离目标轨道，因此可以禁止相邻轨迹的错误擦除。