公开(公告)号：US08599519B2

公开(公告)日：2013-12-03

申请号：US13249627

申请日：2011-09-30

申请人： Ashok B. Nayak ,  Turguy Goker ,  Ming-Chih Weng ,  James Mark Decot

发明人： Ashok B. Nayak ,  Turguy Goker ,  Ming-Chih Weng ,  James Mark Decot

IPC分类号： G11B21/24

CPC分类号： G11B5/56 ,  G11B5/53 ,  G11B5/584

摘要： A head rotator assembly (22) for positioning a head (20) of a tape drive (10) relative to a storage tape includes a head supporter (230) and a supporter mover assembly (232). The head supporter (230) is coupled to and supports the head (20). The supporter mover assembly (232) rotates a portion of the head supporter (230) about an axis (241) to move the head (20) in an azimuth direction relative to the storage tape as the storage tape moves over the head (20). The head rotator assembly (22) includes a controller (16) that controls movement of the supporter mover assembly (232) based on a positioning signal. The supporter mover assembly (232) can include a first actuator (234A) that moves a first lever (236A) to rotate the head supporter (230) to move the head (20) in the azimuth direction. The first actuator (234A) biases the first lever (236A) to rotate part of the head supporter (230) to move the head in the azimuth direction.

摘要翻译： 用于相对于存储带定位磁带驱动器（10）的头部（20）的头部旋转器组件（22）包括头部支撑件（230）和支撑件移动器组件（232）。 头部支撑件（230）联接并支撑头部（20）。 当存储带移动到头部（20）上时，支撑器移动器组件（232）使头部支撑件（230）的一部分围绕轴线（241）旋转，以使头部（20）相对于存储带在方位角方向上移动， 。 头部旋转器组件（22）包括控制器（16），该控制器基于定位信号来控制支撑器移动器组件（232）的移动。 支撑器移动器组件（232）可以包括第一致动器（234A），其移动第一杆（236A）以旋转头部支撑件（230）以使头部（20）沿方位角方向移动。 第一致动器（234A）偏压第一杆（236A）以旋转头部支撑件（230）的一部分，以使头部在方位角方向上移动。

公开(公告)号：US20130083421A1

公开(公告)日：2013-04-04

申请号：US13249627

申请日：2011-09-30

申请人： Ashok B. Nayak ,  Turguy Goker ,  Ming-Chih Weng ,  James Mark Decot

发明人： Ashok B. Nayak ,  Turguy Goker ,  Ming-Chih Weng ,  James Mark Decot

IPC分类号： G11B21/02

CPC分类号： G11B5/56 ,  G11B5/53 ,  G11B5/584

摘要： A head rotator assembly (22) for positioning a head (20) of a tape drive (10) relative to a storage tape includes a head supporter (230) and a supporter mover assembly (232). The head supporter (230) is coupled to and supports the head (20). The supporter mover assembly (232) rotates a portion of the head supporter (230) about an axis (241) to move the head (20) in an azimuth direction relative to the storage tape as the storage tape moves over the head (20). The head rotator assembly (22) includes a controller (16) that controls movement of the supporter mover assembly (232) based on a positioning signal. The supporter mover assembly (232) can include a first actuator (234A) that moves a first lever (236A) to rotate the head supporter (230) to move the head (20) in the azimuth direction. The first actuator (234A) biases the first lever (236A) to rotate part of the head supporter (230) to move the head in the azimuth direction.

摘要翻译： 用于相对于存储带定位磁带驱动器（10）的头部（20）的头部旋转器组件（22）包括头部支撑件（230）和支撑件移动器组件（232）。 头部支撑件（230）联接并支撑头部（20）。 当存储带移动到头部（20）上时，支撑器移动器组件（232）使头部支撑件（230）的一部分围绕轴线（241）旋转，以使头部（20）相对于存储带在方位角方向上移动， 。 头部旋转器组件（22）包括控制器（16），该控制器基于定位信号来控制支撑器移动器组件（232）的移动。 支撑器移动器组件（232）可以包括第一致动器（234A），其移动第一杆（236A）以旋转头部支撑件（230）以使头部（20）沿方位角方向移动。 第一致动器（234A）偏压第一杆（236A）以旋转头部支撑件（230）的一部分，以使头部在方位角方向上移动。

公开(公告)号：US20100042360A1

公开(公告)日：2010-02-18

申请号：US12191823

申请日：2008-08-14

申请人： Ming-chih Weng ,  Turguy Goker ,  James Mark Decot ,  Minh Vu ,  John A. Hamming

发明人： Ming-chih Weng ,  Turguy Goker ,  James Mark Decot ,  Minh Vu ,  John A. Hamming

IPC分类号： G01B21/10 ,  G01P3/00

CPC分类号： G11B15/32 ,  G11B15/46

摘要： In a method of electronically measuring reel off-center run-out and reel hub mismatch, tape speed data related to a tape coupled with an operating drive reel is electronically measured. The tape speed data is correlated with drive reel rotation angles. The correlated tape speed data is translated to drive reel hub radii variations with respect to the drive reel rotation angles. The drive reel hub radii variations comprise an operational measure of reel off-center run-out and reel hub mismatch of the drive reel.

摘要翻译： 在电子测量卷轴偏心径向和卷轴轮毂不匹配的方法中，电子测量与与操作驱动卷轴耦合的带相关的带速度数据。 磁带速度数据与驱动卷轴旋转角度相关。 相关的带速度数据被转换为驱动相对于驱动卷轴旋转角度的卷轴毂半径变化。 驱动器卷轴毂半径变化包括驱动卷轴的卷轴偏心偏心和卷轴毂不匹配的操作测量。

公开(公告)号：US07679864B2

公开(公告)日：2010-03-16

申请号：US11506968

申请日：2006-08-17

申请人： Ashok Nayak ,  John Ycas ,  Turguy Goker ,  Ming-chih Weng ,  James Mark Decot

发明人： Ashok Nayak ,  John Ycas ,  Turguy Goker ,  Ming-chih Weng ,  James Mark Decot

IPC分类号： G11B5/55

CPC分类号： G11B5/584

摘要： A servo-controlled, head actuator design that has low profile characteristics in both the height and width dimensions. The low height allows the actuator to fit into a half-high tape drive form factor. Additionally, in some implementations, the actuator comprises a smaller, concentrated moving mass coupled with a flexure construction having a narrowed width with added ribs for torsional stiffness. These aspects of the actuator provide a higher second mode of vibration compared to the flexure designs of the prior art. The actuator includes a coarse actuator assembly for larger movements of the head, and a fine actuator, including a Voice coil motor, responsive to analysis of servo signals. In some embodiments, the voice coil motor of the fine actuator and the coarse actuator shafts are in line. Since the centerlines of the shafts are in-line with the voice coil motor, the resonance response of the shaft spring-mass system is reduced.

摘要翻译： 伺服控制的头部致动器设计，在高度和宽度尺寸方面均具有低轮廓特性。 低高度允许执行器适合半高磁带驱动器外形尺寸。 此外，在一些实施方式中，致动器包括较小的集中运动质量，其与具有变窄的宽度的弯曲结构联接，具有用于扭转刚度的附加的肋。 与现有技术的挠曲设计相比，致动器的这些方面提供了更高的第二振动模式。 致动器包括用于头部的较大运动的粗略致动器组件和响应于伺服信号分析的包括音圈电机的精细致动器。 在一些实施例中，精细致动器的音圈电动机和粗致动器轴线在一起。 由于轴的中心线与音圈马达保持一致，所以轴弹簧体系的共振响应减小。

公开(公告)号：US20070285845A1

公开(公告)日：2007-12-13

申请号：US11506968

申请日：2006-08-17

申请人： Ashok Nayak ,  John Ycas ,  Turguy Goker ,  Ming-chih Weng ,  James Mark Decot

发明人： Ashok Nayak ,  John Ycas ,  Turguy Goker ,  Ming-chih Weng ,  James Mark Decot

IPC分类号： G11B5/55

CPC分类号： G11B5/584

摘要： An exemplary embodiment provides for a servo-controlled, head actuator design that has low profile characteristics in both the height and width dimensions. The low height allows the actuator to fit into a half-high tape drive form factor. The construction of the actuator, in one embodiment, reduces the width of the tape drive system, and allows the industry standard mounting with the necessary screw length. Additionally, in some implementations, the actuator comprises a smaller, concentrated moving mass coupled with a flexure construction having a narrowed width with added ribs for torsional stiffness. These aspects of the actuator provide a higher second mode of vibration compared to the flexure designs of the prior art. The actuator design includes a coarse actuator assembly for larger movements of the head, and a fine grain actuator, including a voice coil motor, responsive to analysis of servo signals. In some embodiments, the voice coil motor of the fine actuator and the coarse actuator shafts are in line. Since the centerlines of the shafts are in-line with the voice coil motor, the resonance response of the shaft spring-mass system is reduced.

摘要翻译： 示例性实施例提供了伺服控制的头致动器设计，其在高度和宽度尺寸方面具有低轮廓特性。 低高度允许执行器适合半高磁带驱动器外形尺寸。 在一个实施例中，致动器的结构减小了带驱动系统的宽度，并允许以所需的螺丝长度安装工业标准。 此外，在一些实施方式中，致动器包括较小的集中运动质量，其与具有变窄的宽度的弯曲结构联接，具有用于扭转刚度的附加的肋。 与现有技术的挠曲设计相比，致动器的这些方面提供了更高的第二振动模式。 致动器设计包括用于头部的较大运动的粗略致动器组件和响应于伺服信号分析的包括音圈电动机的精细致动器。 在一些实施例中，精细致动器的音圈电动机和粗致动器轴线在一起。 由于轴的中心线与音圈马达保持一致，所以轴弹簧体系的共振响应减小。

公开(公告)号：US07945419B2

公开(公告)日：2011-05-17

申请号：US12191823

申请日：2008-08-14

申请人： Ming-chih Weng ,  Turguy Goker ,  James Mark Decot ,  Minh Vu ,  John A. Hamming

发明人： Ming-chih Weng ,  Turguy Goker ,  James Mark Decot ,  Minh Vu ,  John A. Hamming

IPC分类号： G01P3/00 ,  G11B15/52

CPC分类号： G11B15/32 ,  G11B15/46

摘要： In a method of electronically measuring reel off-center run-out and reel hub mismatch, tape speed data related to a tape coupled with an operating drive reel is electronically measured. The tape speed data is correlated with drive reel rotation angles. The correlated tape speed data is translated to drive reel hub radii variations with respect to the drive reel rotation angles. The drive reel hub radii variations comprise an operational measure of reel off-center run-out and reel hub mismatch of the drive reel.

摘要翻译： 在电子测量卷轴偏心径向和卷轴轮毂不匹配的方法中，电子测量与与操作驱动卷轴耦合的带相关的带速度数据。 磁带速度数据与驱动卷轴旋转角度相关。 相关的带速度数据被转换为驱动相对于驱动卷轴旋转角度的卷轴毂半径变化。 驱动器卷轴毂半径变化包括驱动卷轴的卷轴偏心偏心和卷轴毂不匹配的操作测量。

公开(公告)号：US5901008A

公开(公告)日：1999-05-04

申请号：US828550

申请日：1997-03-31

申请人： Ashok B. Nayak ,  Kurt A. Buckland ,  Walter Fehlmann ,  James Mark Decot ,  Scott L. Hanson

发明人： Ashok B. Nayak ,  Kurt A. Buckland ,  Walter Fehlmann ,  James Mark Decot ,  Scott L. Hanson

IPC分类号： G11B5/54 ,  G05B19/23 ,  G05B19/35 ,  G11B5/55 ,  G11B5/58 ,  G11B5/584 ,  H02K11/00 ,  H02K41/035 ,  H02P25/02

CPC分类号： H02K41/0356 ,  G05B19/23 ,  G05B19/351 ,  G11B5/5504 ,  G11B5/5508 ,  G11B5/584 ,  H02P25/034 ,  G05B2219/41355 ,  H02K11/00

摘要： A voice coil driven positioner is provided for positioning the magnetic head of a tape drive relative to the tape of a removable tape cartridge. The head positioner includes a low-mass carriage that supports the head on one end and the voice coil on an opposed second end. A low friction guide mechanism guides the carriage along a precision movement path that carries the head across tracks of a supplied multi-track tape and simultaneously carries the voice coil through a flux field generated by a stator. A movable magnet is attached to the carriage and located within the hollow of the voice coil for reciprocating into a hollow passageway of the stator together with reciprocation of the voice coil into another hollow of the stator. A flux detector is attached to the stator and located compactly within the hollow passageway of the stator for detecting the position of the magnet. A programmable lookup table converts measurement signals output by the flux detector into pre-calibrated, head-position indicating signals. A platform is provided on the carriage for mounting an interferometer prism used during calibration.

摘要翻译： 提供了一种音圈驱动定位器，用于相对于可移除的带盒的带定位磁带驱动器的磁头。 头部定位器包括一个低质量的托架，该托架在一端支撑头部，并且在相对的第二端上支撑音圈。 低摩擦引导机构沿着精准运动路径引导托架，该轨道将磁头穿过所提供的多轨磁带的磁道，同时通过由定子产生的磁通场传送音圈。 可移动磁体附接到滑架并且位于音圈的中空部分内，用于往复运动到定子的中空通道以及音圈与定子的另一个中空的往复运动。 磁通检测器附接到定子并紧密地定位在定子的中空通道内，用于检测磁体的位置。 可编程查找表将由通量检测器输出的测量信号转换成预校准的头位指示信号。 在滑架上设有平台，用于安装校准过程中使用的干涉仪棱镜。

公开(公告)号：US5978172A

公开(公告)日：1999-11-02

申请号：US577802

申请日：1995-12-22

申请人： Ashok B. Nayak ,  Kurt A. Buckland ,  Walter Fehlmann ,  James Mark Decot ,  Scott L. Hanson

发明人： Ashok B. Nayak ,  Kurt A. Buckland ,  Walter Fehlmann ,  James Mark Decot ,  Scott L. Hanson

IPC分类号： G11B5/54 ,  G05B19/23 ,  G05B19/35 ,  G11B5/55 ,  G11B5/58 ,  G11B5/584 ,  H02K11/00 ,  H02K41/035 ,  H02P25/02

CPC分类号： H02K41/0356 ,  G05B19/23 ,  G05B19/351 ,  G11B5/5504 ,  G11B5/5508 ,  G11B5/584 ,  H02P25/034 ,  G05B2219/41355 ,  H02K11/00

摘要： A voice coil driven positioner is provided for positioning the magnetic head of a tape drive relative to the tape of a removable tape cartridge. The head positioner includes a low-mass carriage that supports the head on one end and the voice coil on an opposed second end. A low friction guide mechanism guides the carriage along a precision movement path that carries the head across tracks of a supplied multi-track tape and simultaneously carries the voice coil through a flux field generated by a stator. A movable portion of a position detector is attached to the carriage and located within the hollow of the voice coil for reciprocating into a hollow passageway of the stator together with reciprocation of the voice coil into another hollow of the stator. A fixed portion of the position detector is attached to the stator and located compactly within the hollow passageway of the stator. A programmable lookup table converts measurement signals output by the position detector into pre-calibrated, head-position indicating signals. A platform is provided on the carriage for mounting an interferometer prism used during calibration.

摘要翻译： 提供了一种音圈驱动定位器，用于相对于可移除的带盒的带定位磁带驱动器的磁头。 头部定位器包括一个低质量的托架，该托架在一端支撑头部，并且在相对的第二端上支撑音圈。 低摩擦引导机构沿着精准运动路径引导托架，该轨道将磁头穿过所提供的多轨磁带的磁道，同时通过由定子产生的磁通场传送音圈。 位置检测器的可移动部分附接到托架并且位于音圈的中空部分内，用于往复定位到定子的中空通道中以及音圈与定子的另一个中空部的往复运动。 位置检测器的固定部分附接到定子并紧密地定位在定子的中空通道内。 可编程查找表将由位置检测器输出的测量信号转换成预校准的头位指示信号。 在滑架上设有平台，用于安装校准过程中使用的干涉仪棱镜。

公开(公告)号：US06404598B1

公开(公告)日：2002-06-11

申请号：US09401100

申请日：1999-09-22

申请人： Ashok Babubhai Nayak ,  James Mark Decot

发明人： Ashok Babubhai Nayak ,  James Mark Decot

IPC分类号： G11B556

CPC分类号： G11B5/584 ,  H05K1/0393

摘要： Disclosed is a method of increasing the transfer rate of a magnetic tape drive by employing at least one head gap per rail. A flexible printed circuit provides communication between main control circuitry of the tape drive and the head positioning apparatus. The flex circuit provides flexible control loops that correspond to the translation range of the head positioning apparatus. In a preferred embodiment, the flex circuit includes a fine positioner loop and a coarse positioner loop.

摘要翻译： 公开了一种通过每个轨道使用至少一个磁头间隙来增加磁带驱动器的传送速率的方法。 柔性印刷电路提供磁带驱动器的主控制电路和磁头定位装置之间的通信。 柔性电路提供对应于头部定位装置的平移范围的灵活的控制回路。 在优选实施例中，柔性电路包括精细定位器回路和粗定位器回路。