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    Correlation servo for positioning recording head
    61.
    发明授权
    Correlation servo for positioning recording head 失效

    公开(公告)号：US07307809B2

    公开(公告)日：2007-12-11

    申请号：US11208340

    申请日：2005-08-18

    Applicant: Lawrence G. Neumann

    Inventor： Lawrence G. Neumann

    IPC: G11B5/584 ,  G11B5/09 ,  G11B21/02

    CPC classification number: G11B5/584 ,  G11B5/0083 ,  G11B5/49

    Abstract: Tape heads and controllers for controlling such heads in a tape drive are described. A controller may determine a first parameter corresponding to the similarity between data read by a first pair of read elements of a head, a second parameter corresponding to the similarity between data read by another pair of read elements having one read element in common with the first pair, and a position of the head with respect to a data track based upon a relationship between the first and second parameters. The controller may adjust the head to a proper lateral position based upon the determined position.

    Correlation servo for positioning recording head
    63.
    发明申请
    Correlation servo for positioning recording head 失效
    相关伺服定位记录头

    公开(公告)号：US20070041121A1

    公开(公告)日：2007-02-22

    申请号：US11208340

    申请日：2005-08-18

    Applicant: Lawrence Neumann

    Inventor： Lawrence Neumann

    IPC: G11B5/584 ,  G11B5/09 ,  G11B21/02

    CPC classification number: G11B5/584 ,  G11B5/0083 ,  G11B5/49

    Abstract: Tape heads and controllers for controlling such heads in a tape drive are described. A controller may determine a first parameter corresponding to the similarity between data read by a first pair of read elements of a head, a second parameter corresponding to the similarity between data read by another pair of read elements having one read element in common with the first pair, and a position of the head with respect to a data track based upon a relationship between the first and second parameters. The controller may adjust the head to a proper lateral position based upon the determined position.

    Abstract translation: 描述了用于在磁带驱动器中控制这些磁头的磁头和控制器。 控制器可以确定对应于由头部的第一对读取元素读取的数据之间的相似性的第一参数，对应于由另一对读取元素读取的数据之间的相似性的第二参数，该读取元素具有与第一 对，以及基于第一和第二参数之间的关系的头相对于数据轨道的位置。 控制器可以基于确定的位置将头部调整到适当的横向位置。

    Magnetic head device and linear tape drive
    64.
    发明申请
    Magnetic head device and linear tape drive 失效
    磁头设备和线性磁带机

    公开(公告)号：US20050185344A1

    公开(公告)日：2005-08-25

    申请号：US11041900

    申请日：2005-01-24

    Applicant: Yoshihiko Ito ,  Hirohisa Koga ,  Takashi Abe ,  James Anderson ,  Denis Langlois

    Inventor： Yoshihiko Ito ,  Hirohisa Koga ,  Takashi Abe ,  James Anderson ,  Denis Langlois

    IPC: G11B5/584 ,  G11B5/008 ,  G11B5/29 ,  G11B5/56

    CPC classification number: G11B5/584 ,  G11B5/0083

    Abstract: In general, the invention provides a magnetic head device and linear tape drive that widen the high frequency side of the servo range. In particular, the invention provides a magnetic head device comprising a magnetic head chip with multiple magnetic elements arranged for recording or playback of multiple tracks and a fine positioning structure that uses a bimodal construction that may widen the high frequency side of the servo range by increasing the resonant frequency of the magnetic head chip including the tracking structure and lowering the Q value of the resonance point. In addition, the invention includes a damping structure suitable for the fine positioning structure that improves high speed response by widening the range in which the magnetic head device can be used for a servo. The magnetic head device may use a linear tape drive method.

    Abstract translation: 通常，本发明提供一种加宽伺服范围的高频侧的磁头装置和线性磁带驱动器。 特别地，本发明提供一种磁头装置，其包括磁头芯片，该磁头芯片具有多个用于记录或重放多个磁道的磁性元件，以及精细的定位结构，其使用双峰结构，该结构可以通过增加伺服范围的高频侧 包括跟踪结构的磁头芯片的谐振频率，并降低谐振点的Q值。 此外，本发明还包括一种适于精细定位结构的阻尼结构，其通过扩大磁头装置可用于伺服的范围来改善高速响应。 磁头装置可以使用线性磁带驱动方法。

    Arrangement for reproducing n digital signals having n phase-locked loops each including a phase shifter, controlled by an integrating element, arranged between a VCO output and a phase detector
    66.
    发明授权
    Arrangement for reproducing n digital signals having n phase-locked loops each including a phase shifter, controlled by an integrating element, arranged between a VCO output and a phase detector 失效
    用于再现具有n个锁相环的n个数字信号的装置，每个锁相环包括由积分元件控制的移相器，布置在VCO输出和相位检测器之间

    公开(公告)号：US5786953A

    公开(公告)日：1998-07-28

    申请号：US798589

    申请日：1997-02-11

    Applicant: Joahnnes J. W. Kalfs

    Inventor： Joahnnes J. W. Kalfs

    IPC: G11B5/008 ,  G11B20/10 ,  G11B20/14 ,  G11B20/20 ,  H03L7/07 ,  H03L7/081 ,  H03L7/087 ,  G11B5/09 ,  G11B15/12

    CPC classification number: H03L7/07 ,  G11B20/1403 ,  G11B20/20 ,  H03L7/081 ,  H03L7/087 ,  G11B20/10527 ,  G11B5/0083

    Abstract: For clock extraction (Cl.sub.n) from n digital signals read from each of n tracks (T.sub.a.1 to T.sub.a.n), there are provided n phase-locked loops (13,n). Voltage-controlled oscillator (21) is common to the n phase-locked loops. Each phase-locked loop further includes a phase-shifter unit (25.n) having an input coupled to the output of the voltage-controlled oscillator (21) and an output coupled to the second input of the phase comparator (17,n) in the loop. The phase shift in the phase-shifter unit (25.n) is controlled under the influence of a control signal which is derived by a control signal generator (26.n) and applied to a control signal input (29) of the phase-shifter unit (25.n). The control signal generator unit (26.n) is an integrating element.

    Abstract translation: 对于从n个磁道（Ta.1至Ta.n）中的每一个读取的n个数字信号的时钟提取（Cln），提供了n个锁相环（13，n）。 压控振荡器（21）对于n个锁相环是共同的。 每个锁相环还包括具有耦合到压控振荡器（21）的输出的输入和耦合到相位比较器（17，n）的第二输入的输出的移相器单元（25.n） 在循环。 在由控制信号发生器（26.n）导出的控制信号的影响下控制移相器单元（25.n）中的相移，并施加到相位偏移单元（25.n）的控制信号输入端（29） 移位器单元（25.n）。 控制信号发生器单元（26.n）是积分元件。

    Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus
    67.
    发明授权
    Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus 失效
    用于数据处理单元的磁记录和再现设备以及用于这种设备的磁带

    公开(公告)号：US5293280A

    公开(公告)日：1994-03-08

    申请号：US739218

    申请日：1991-08-01

    Applicant: Toshio Ishikawa ,  Shigeo Terashima ,  Taizo Sasada

    Inventor： Toshio Ishikawa ,  Shigeo Terashima ,  Taizo Sasada

    IPC: G11B5/09 ,  G11B5/008 ,  G11B15/00 ,  G11B15/087 ,  G11B20/10 ,  G11B20/12 ,  G11B27/10 ,  G11B27/30 ,  G11B15/48

    CPC classification number: G11B15/087 ,  G11B15/005 ,  G11B20/10 ,  G11B20/1202 ,  G11B27/107 ,  G11B27/3027 ,  G11B27/3063 ,  G11B5/0083 ,  G11B2020/10592 ,  G11B2020/10888 ,  G11B2220/90 ,  G11B2220/913

    Abstract: Disclosed are a magnetic recording and reproduction apparatus for a data processing unit, which includes a plurality of magnetic heads formed integrally by a thin-film forming technology, and a magnetic tape. A magnetic tape has a plurality of recording tracks corresponding to a plurality of independent data. The recording tracks are arranged in parallel to a moving direction of the magnetic tape and share the same starting position. A plurality of magnetic heads are arranged in parallel to a width direction of the magnetic tape to correspond to the recording tracks in a one-to-one correspondence, and are fixed at the starting position of the recording tracks. The magnetic tape is moved in a direction in which the starting position is away from the magnetic heads for data recording onto the magnetic tape and for data reproduction from the magnetic tape. Further, the magnetic tape is controlled to automatically and immediately move in an opposite direction to the previous direction until the starting position reaches the position of the magnetic heads in response to each of the end of the data recording and the end of the data reproduction. Thus, the starting position of the recording tracks is the same, i.e. at the position of magnetic heads upon the start of data recording and the start of data reproduction.

    Abstract translation: 公开了一种用于数据处理单元的磁记录和再现装置，其包括通过薄膜形成技术一体地形成的多个磁头和磁带。 磁带具有对应于多个独立数据的多个记录道。 记录轨道与磁带的移动方向平行地布置，并且共享相同的起始位置。 多个磁头与磁带的宽度方向平行布置，以一一对应的方式对应于记录磁道，并固定在记录磁道的起始位置。 磁带沿起始位置远离磁头的方向移动，用于数据记录到磁带上，并从磁带进行数据再现。 此外，磁带被控制以自动地并且立即沿与先前方向相反的方向移动，直到起始位置响应于数据记录的每个结束和数据再现的结束而到达磁头的位置。 因此，记录磁迹的起始位置是相同的，即在开始数据记录和开始数据再现时在磁头的位置。

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