会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Controlling the transport of a tape within a tape transport system
    • 控制磁带传送系统内的磁带的传输
    • US08982500B1
    • 2015-03-17
    • US14450829
    • 2014-08-04
    • International Business Machines Corporation
    • Giovanni CherubiniJens JelittoAngeliki Pantazi
    • G11B17/00G11B5/584G11B21/02G11B15/46G11B15/48G11B15/43
    • G11B15/43G11B15/32G11B15/46G11B15/60
    • A control device for controlling tape transport within a tape transport system is disclosed. The control device includes a determination unit, which includes at least a first servo channel and a second servo channel for determining a first lateral position of a tape relative to the head, and for determining a difference between the first and second lateral positions. A computing unit computes a number of unsupported wraps of the tape as a function of the lateral position difference, wherein the number of unsupported wraps corresponds to the number of layers of the tape around the take-up reel having air layers in-between, and computes a spring constant of the tape as a function of the number of unsupported wraps, a radius of the take-up reel and a nominal tape path length. A calibration unit calibrates at least one unit of the tape transport system dependent on the spring constant.
    • 公开了一种用于控制磁带传送系统内磁带传输的控制装置。 控制装置包括确定单元,该确定单元至少包括第一伺服通道和第二伺服通道,用于确定带相对于头部的第一横向位置,以及用于确定第一和第二横向位置之间的差异。 计算单元根据横向位置差来计算带子的多个不受支撑的包裹,其中不支撑的包装件的数量对应于其间具有空气层的卷取卷轴周围的带的层数,以及 根据不支持的包装的数量,卷取卷轴的半径和标称带路径长度,计算带的弹簧常数。 校准单元根据弹簧常数校准磁带传送系统的至少一个单元。
    • 5. 发明申请
    • MAGNETIC TAPE DRIVING APPARATUS, MAGNETIC TAPE DRIVING METHOD
    • 磁带驱动装置,磁带驱动方法
    • US20110292539A1
    • 2011-12-01
    • US13115163
    • 2011-05-25
    • Masao FUJITASadamu Kuse
    • Masao FUJITASadamu Kuse
    • G11B15/48G11B5/584
    • G11B5/4893G11B5/00813G11B5/40
    • A magnetic tape driving apparatus, which does not cause damage to either a magnetic head or a magnetic tape when making transition of the magnetic tape from a stopped state to a running state, when making transition of the magnetic tape from a running state to a stopped state, or when reversing the transportation direction of the magnetic tape, is provided. In a state where any one of a magnetic head and a magnetic tape moves and the other rests (i.e., a state where static friction may occur), such as at the time of starting transportation of the magnetic tape, at the time of stopping the tape in a running state, and at the time of reversing the transportation direction of the magnetic tape, a head displacing portion vibrates the magnetic head under the control by a displacement control portion, and thus no static friction occurs between the magnetic head and the magnetic tape. Therefore, the risk of causing damage to the magnetic head (such as an MR head unit equipped with an MR element) or the magnetic tape can be reduced.
    • 一种磁带驱动装置,当使磁带从运行状态转移到停止状态时,在使磁带从停止状态转移到运行状态时不会对磁头或磁带造成损坏 状态,或者当使磁带的运送方向反转时。 在磁头和磁带中的任何一个移动的状态下,另一个位置(即,可能发生静摩擦的状态),例如在开始运送磁带时,在停止时 胶带处于运行状态,并且在反转磁带的传送方向时,磁头位移部分在位移控制部分的控制下使磁头振动,从而在磁头和磁体之间不产生静摩擦 胶带。 因此,可以减少对磁头(例如配备有MR元件的MR头单元)或磁带造成损害的风险。
    • 6. 发明申请
    • STOPPING METHOD FOR A SPINDLE MOTOR AND RELATED DEVICE
    • 一种主动电机及其相关装置的停止方法
    • US20100246051A1
    • 2010-09-30
    • US12751740
    • 2010-03-31
    • Ezio GalbiatiFrederic Pascal Bonvin
    • Ezio GalbiatiFrederic Pascal Bonvin
    • G11B15/48
    • G11B19/2063
    • A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor.
    • 一种在没有外部电源电压的情况下停止主轴电机的方法和电路,其中主轴电机被构造成移动设置有由音圈电机移动的至少一个读/写头的硬盘, 多个线圈。 该方法包括整流主轴电动机的反电动势以产生制动电流,以至少一部分制动电流驱动音圈电动机,直到主轴电动机的速度变得低于预定的停止速度,并且在 停放音圈电动机的至少一个读写头,通过使主轴电动机的线圈短路来停止主轴电动机。
    • 7. 发明授权
    • Magnetic recording medium and magnetic recording and reproducing apparatus
    • 磁记录介质和磁记录和再现装置
    • US07494727B2
    • 2009-02-24
    • US11187912
    • 2005-07-25
    • Takahiro SuwaKazuya Shimakawa
    • Takahiro SuwaKazuya Shimakawa
    • G11B5/66G11B5/71G11B15/48
    • G11B5/855
    • A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since the occurrence of a crash of a magnetic head is suppressed. The magnetic recording medium comprises a recording layer formed over a substrate in a predetermined concavo-convex pattern to form recording elements as a convex portion of the concavo-convex pattern and a non-magnetic filler element filled in a concave portion between the recording elements. In this configuration, the top surface of the filler element is formed in a shape partially recessed toward the substrate side to form a groove having a width smaller than the width of the concave portion on the surface of the magnetic recording medium.
    • 公开了一种其中以预定的凹凸图案形成记录层的磁记录介质和包括该磁记录介质的记录和再现装置。 磁记录介质由于磁头碰撞的发生被抑制而具有高的面密度和高的可靠性。 磁记录介质包括以预定的凹凸图案形成在基板上的记录层,以形成作为凹凸图案的凸部的记录元件和填充在记录元件之间的凹部中的非磁性填充元件。 在这种构造中,填充元件的顶表面形成为朝向基板侧部分地凹陷的形状,以形成宽度小于磁记录介质表面上的凹部的宽度的凹槽。
    • 8. 发明授权
    • Mechanism for minimizing unload times in a tape drive system
    • 减少磁带机系统卸载时间的机制
    • US07372657B2
    • 2008-05-13
    • US11440599
    • 2006-05-24
    • Richard Allen GillBradley E. Whitney
    • Richard Allen GillBradley E. Whitney
    • G11B15/48
    • G11B15/467
    • In one embodiment, a method and apparatus for minimizing unload times in a tape drive system is disclosed. The method includes: writing to a tape in serpentine format; reaching a comparison point on the tape, wherein at the comparison point an actual capacity is compared to an expected capacity; utilizing the comparison at the comparison point to estimate a distance from the comparison point until a guaranteed capacity for the tape is reached; and determining a turn-around point on the tape based on the estimated distance, wherein at the turn-around point a tape drive writing to the tape to stop writing in a first direction and then continue writing in a second direction opposite from the first direction and towards a physical beginning of the tape. Other embodiments are also disclosed.
    • 在一个实施例中,公开了一种用于最小化磁带驱动系统中的卸载时间的方法和装置。 该方法包括:以蛇形格式写入磁带; 达到磁带上的比较点,其中在比较点将实际容量与预期容量进行比较; 利用比较点的比较来估计距离比较点的距离,直到达到带的保证容量; 以及基于估计的距离确定磁带上的转折点,其中在转向点处,磁带驱动器写入磁带以停止在第一方向上的写入,然后在与第一方向相反的第二方向上继续写入 并朝着磁带的物理开始。 还公开了其他实施例。