Head for tape drive with transversely varying contour
    11.
    发明授权
    Head for tape drive with transversely varying contour 有权
    磁带驱动器的头部具有横向变化的轮廓

    公开(公告)号:US08542460B2

    公开(公告)日:2013-09-24

    申请号:US12047116

    申请日:2008-03-12

    IPC分类号: G11B5/29 G11B5/265 G11B5/187

    摘要: A system comprises a head having a tape bearing surface and an array of transducers in the tape bearing surface, the transducers being selected from a group consisting of readers, writers and servo readers, a length of the array being defined between outer transducers thereof, the head having a feature that induces formation of a larger spacing between a tape and portions of the tape bearing surface positioned laterally to the array in a direction about perpendicular to a direction of tape travel thereacross than between the tape and a contiguous portion of the tape bearing surface wherein the feature has a continuous length that is at least as long as the plurality of transducers, wherein the feature has a continuous length that is at least as long as the plurality of transducers.

    摘要翻译: 一种系统包括具有带支承表面和磁带支承表面中的换能器阵列的头部,换能器选自由读取器,写入器和伺服读取器组成的组,阵列的长度限定在其外部换能器之间, 头部具有这样的特征,其特征在于,带和带支承表面的部分之间形成较大的间隔,所述带的表面位于横向于阵列的方向上,该方向围绕垂直于所述带的行进方向的方向,而不是在所述带与所述带轴承的邻接部分之间 表面,其中所述特征具有至少与所述多个换能器一样长的连续长度,其中所述特征具有至少与所述多个换能器一样长的连续长度。

    MAGNETICALLY BIASED TILTING ROLLER BEARING TAPE GUIDANCE
    13.
    发明申请
    MAGNETICALLY BIASED TILTING ROLLER BEARING TAPE GUIDANCE 失效
    磁性倾斜滚子轴承带指导

    公开(公告)号:US20130021692A1

    公开(公告)日:2013-01-24

    申请号:US13555850

    申请日:2012-07-23

    IPC分类号: G11B15/18

    CPC分类号: G11B15/60

    摘要: A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed.

    摘要翻译: 磁带驱动系统的磁带移动限制包括可倾斜的带滚子轴承,其具有适于当滚筒旋转时接触和接合带的表面的开槽表面;以及致动器,其适于在致动器为 致动,以控制胶带的横向位置。 在一个实施例中,在一个实施例中,可旋转滚子轴承的滚筒是利用可移动磁体和导磁材料返回路径结构之间的磁吸引力在枢转轴线上被偏置在第一位置。 辊筒通过传导电流通过固定线圈在枢轴上枢转,以产生磁场,该磁场由返回路径结构传导以与磁体的磁场相互作用。 描述和要求保护其他实施例。

    'Method for Calibrating Read Sensors of Electromagnetic Read-Write Heads'
    14.
    发明申请
    'Method for Calibrating Read Sensors of Electromagnetic Read-Write Heads' 有权
    “电磁读写头读取传感器校准方法”

    公开(公告)号:US20120283976A1

    公开(公告)日:2012-11-08

    申请号:US13099360

    申请日:2011-05-03

    IPC分类号: G06F19/00

    摘要: Described are embodiments to ensure that the equipment utilized to detect antigens is reliable and accurate. If it is determined that a read sensor is degraded a method of calibrating a read sensor of a read head is described. In one embodiment, a method of calibrating a magnetic read sensor includes measuring a first resistance of the magnetic read sensor upon an application of a forward bias current to the magnetic read sensor and measuring a second resistance of the magnetic read sensor upon an application of a reverse bias current to the magnetic read sensor. A calibration constant is determined based on at least the first measured resistance and the second measured resistance. In one embodiment the method further includes storing the determined calibration constant for the magnetic read sensor in memory. Further, in one embodiment the head module having the magnetic read sensor is swept over at least one nanoparticle to obtain a read response of the magnetic read sensor to the nanoparticle. The read response from the magnetic read sensor of the at least one nanoparticle is adjusted based on the determined calibration constant. Calibration of each individual read sensor allows for uniform read responses from each of the read sensors on a read head, and prevents unreliable an inaccurate detection of analytes due to sensor degradation.

    摘要翻译: 描述了确保用于检测抗原的设备是可靠和准确的实施方案。 如果确定读取传感器劣化,则描述校准读取头的读取传感器的方法。 在一个实施例中,一种校准磁性读取传感器的方法包括:在向磁性读取传感器施加正向偏置电流时测量磁性读取传感器的第一个电阻,并测量磁性读取传感器的应用时的第二个电阻 反向偏置电流到磁性读取传感器。 基于至少第一测量电阻和第二测量电阻来确定校准常数。 在一个实施例中,该方法还包括将所确定的磁读取传感器的校准常数存储在存储器中。 此外,在一个实施例中,具有磁读取传感器的头模块扫过至少一个纳米颗粒,以获得磁读取传感器对纳米颗粒的读取响应。 基于所确定的校准常数来调整来自至少一个纳米颗粒的磁读取传感器的读取响应。 每个单独的读取传感器的校准允许来自读取头上的每个读取传感器的均匀的读取响应,并且防止由于传感器劣化而导致的分析物不可靠的检测不可靠。

    Planar servo write head
    15.
    发明授权
    Planar servo write head 失效
    平面伺服写头

    公开(公告)号:US08014100B2

    公开(公告)日:2011-09-06

    申请号:US11744535

    申请日:2007-05-04

    摘要: A servo write head that provides fast servo pattern writing and improved tape manufacturing speed is provided. The write head may be fabricated using thin-film fabrication techniques. A coil is formed on a bottom pole of the write head. The coil has a plurality of turns that enable the write head to generate a magnetic field sufficient for writing data with reduced current. The inductance of the coil is reduced due to its small dimensions. Reduced inductance of the coil may enable increased switching frequency of the write head, allowing data to be written at a higher frequency. The write head includes a planar top pole coupled to the bottom pole. The top pole has more than one write gap is formed therein.

    摘要翻译: 提供了提供快速伺服模式写入和改进的磁带制造速度的伺服写入头。 写头可以使用薄膜制造技术来制造。 线圈形成在写头的底极上。 线圈具有多个匝,使得写头能够产生足以以减小的电流写入数据的磁场。 线圈的电感由于尺寸小而减小。 线圈的降低的电感可以提高写入头的开关频率,允许以更高的频率写入数据。 写头包括耦合到底极的平面顶极。 顶杆在其中形成多于一个的写入间隙。

    MOTOR CONTROL MECHANISM FOR ELECTRIC VEHICLES
    17.
    发明申请
    MOTOR CONTROL MECHANISM FOR ELECTRIC VEHICLES 有权
    电动机电机控制机构

    公开(公告)号:US20100181949A1

    公开(公告)日:2010-07-22

    申请号:US12355495

    申请日:2009-01-16

    IPC分类号: H02P1/04 H02P3/12 H02P3/14

    CPC分类号: H02P3/12 H02P1/04

    摘要: An apparatus for controlling a wheel motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the wheel motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the wheel motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.

    摘要翻译: 提供了一种用于控制车轮电动机的装置。 提供多个开关,用于控制通过车轮马达的马达线圈的电流方向。 无刷电机控制电路连接到多个开关中的每一个。 响应于调整车轮电动机的角速度和角加速度之一的请求,多个开关被激活,以将电动机线圈放置在预定的配置中,以最大限度地提高转矩或减少总反向电动势(BEMF) 电机线圈。

    INCREASING TAPE VELOCITY BY DYNAMIC SWITCHING
    18.
    发明申请
    INCREASING TAPE VELOCITY BY DYNAMIC SWITCHING 有权
    通过动态切换增加磁带速度

    公开(公告)号:US20100052584A1

    公开(公告)日:2010-03-04

    申请号:US12202854

    申请日:2008-09-02

    IPC分类号: H02P6/08 H02K7/14

    CPC分类号: H02P25/18 H02P27/08

    摘要: An apparatus for controlling an electric motor is provided. A plurality of switches is provided for controlling a direction of current through motor coils of the electric motor. A brushless motor control circuit is connected to each of the plurality of switches. Responsive to a request to adjust one of an angular velocity and an angular acceleration of the electric motor, the plurality of switches are activated to place the motor coils in a predetermined configuration to maximize torque or reduce a total back electromotive force (BEMF) from the motor coils.

    摘要翻译: 提供一种用于控制电动机的装置。 提供多个开关,用于控制电动机的电动机线圈的电流方向。 无刷电机控制电路连接到多个开关中的每一个。 响应于调整电动机的角速度和角加速度之一的请求,多个开关被激活,以将电动机线圈放置在预定的配置中以使转矩最大化或者减小总反向电动势(BEMF) 电机线圈。

    SYSTEMS AND METHODS FOR WRITING SERVO PATTERNS
    19.
    发明申请
    SYSTEMS AND METHODS FOR WRITING SERVO PATTERNS 有权
    用于书写服务模式的系统和方法

    公开(公告)号:US20090316290A1

    公开(公告)日:2009-12-24

    申请号:US12141363

    申请日:2008-06-18

    IPC分类号: G11B21/10

    摘要: A method for writing a servo track according to one embodiment comprises monitoring a lateral position of a magnetic tape passing over a servo writing head during a servo track writing operation; and writing servo marks to the magnetic tape, a timing of the writing of each mark being based on the monitored position of the magnetic tape. A system for writing a servo track according to one embodiment comprises a servo writing head for writing servo marks onto a magnetic tape; a device for optically monitoring a position of the magnetic tape during a servo track writing operation; and a controller for controlling a timing of the writing of the servo marks to the magnetic tape based on the monitored position of the magnetic tape. Additional systems and methods are also presented.

    摘要翻译: 根据一个实施例的用于写入伺服磁道的方法包括在伺服磁道写入操作期间监视通过伺服写入磁头的磁带的横向位置; 并将伺服标记写入磁带,每个标记的写入定时是基于磁带的监视位置。 根据一个实施例的用于写入伺服磁道的系统包括用于将伺服标记写入磁带的伺服写入头; 用于在伺服轨迹写入操作期间光学监测磁带的位置的装置; 以及控制器,用于基于所监视的磁带位置来控制伺服标记写入磁带的定时。 还介绍了其他系统和方法。

    System and method for deconvolution of multiple data tracks
    20.
    发明授权
    System and method for deconvolution of multiple data tracks 失效
    多个数据轨迹的去卷积系统和方法

    公开(公告)号:US07428120B2

    公开(公告)日:2008-09-23

    申请号:US11694091

    申请日:2007-03-30

    IPC分类号: G11B5/58

    CPC分类号: G11B5/00826 G11B5/584

    摘要: A system and method for reading a magnetic medium having a data band thereon, the data band comprising a plurality of written data tracks and in some embodiments at least one alignment band. The system in one embodiment includes a plurality of adjacent readers for simultaneously reading the data tracks, at least some of the readers overlapping multiple data tracks. At least one reader is also present for reading the at least one alignment band. A mechanism determines a fractional overlap of each reader on the data tracks based on readback of the alignment band. A mechanism extracts data from readback of the data tracks based at least in part on the fractional overlap.

    摘要翻译: 一种用于读取其上具有数据带的磁介质的系统和方法,所述数据带包括多个写入的数据轨道,并且在一些实施例中为至少一个对准带。 在一个实施例中的系统包括用于同时读取数据轨道的多个相邻读取器,至少一些读取器重叠多个数据轨道。 还存在至少一个读取器用于读取至少一个对准带。 一种机制基于对准带的回读来确定每个读取器在数据轨道上的分数重叠。 一种机制至少部分地基于分数重叠从数据轨道的回读中提取数据。