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公开(公告)号：US08446119B2
公开(公告)日：2013-05-21
申请号：US13099276
申请日：2011-05-02
申请人： Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
发明人： Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
IPC分类号： H02P23/00
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。
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公开(公告)号：US20130020979A1
公开(公告)日：2013-01-24
申请号：US13614887
申请日：2012-09-13
摘要： Dynamic reconfiguration-switching of motor windings is optimized between winding-configurations. Acceleration is traded off in favor of higher velocity upon detecting an electric motor is at an optimal angular-velocity for switching to an optimal lower torque constant and voltage constant. The total back electromotive force (BEMF) is prohibited from inhibiting further acceleration to a higher angular-velocity.
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3.发明申请DYNAMIC CONFIGURATION OF A CALCULATION FUNCTION THAT OPTIMIZES DYNAMIC RECONFIGURATION-SWITCHING OF WINDINGS IN AN ELECTRIC MOTOR 有权计算功能的动态配置优化电动机中绕组的动态重新配置 - 切换公开(公告)号：US20130002183A1
公开(公告)日：2013-01-03
申请号：US13614915
申请日：2012-09-13
IPC分类号： H02P6/08
CPC分类号： H02P25/18 , H02P23/20 , H02P25/188 , H02P27/08
摘要： A calculation function, which optimizes a dynamic reconfiguration-switching of motor windings between winding-configurations, is dynamically configured. Acceleration is traded off in favor of higher velocity upon detecting the electric motor is at an optimal angular-velocity for switching to an optimal lower torque constant and voltage constant. The total back electromotive force (BEMF) is prohibited from inhibiting further acceleration to a higher angular-velocity.
摘要翻译： 动态配置了优化绕组配置之间电动机绕组的动态重新配置切换的计算功能。 在检测到电动机处于最佳角速度以切换到最佳的较低转矩常数和电压常数时，加速度被偏离为有利于更高的速度。 总反向电动势（BEMF）被禁止禁止进一步加速到更高的角速度。
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公开(公告)号：US08288979B2
公开(公告)日：2012-10-16
申请号：US12355495
申请日：2009-01-16
申请人： Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
发明人： Allen Keith Bates , Nhan Xuan Bui , Reed Alan Hancock , Wayne Isami Imaino , Daniel James Winarski
IPC分类号： H02P7/00
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构型中，以最大化转矩或减小总反向电动势（BEMF） 电机线圈。
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公开(公告)号：US08270114B2
公开(公告)日：2012-09-18
申请号：US12028649
申请日：2008-02-08
申请人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
发明人： Armando Jesus Argumedo , Nhan Xuan Bui , William Marvin Dyer , Reed Alan Hancock , David Howard Flores Harper , Wayne Isami Imaino , Kevin Bruce Judd
IPC分类号： G11B15/60
CPC分类号： G11B15/60
摘要： In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a roller barrel 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. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. Other embodiments are described and claimed.
摘要翻译： 在一个实施例中，用于磁带驱动系统的磁带移动约束包括可倾斜带滚子轴承，其具有在枢转轴线上被偏置在第一位置的滚筒，使用可移动磁体和导磁材料的返回路径结构之间的磁吸引 。 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。 移动带和筒表面之间任何空气轴承的至少一部分使用在桶表面中形成的凹槽进行淬火。 描述和要求保护其他实施例。
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公开(公告)号：US08139312B2
公开(公告)日：2012-03-20
申请号：US12716037
申请日：2010-03-02
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： An alternative time interval is taken of a timing based servo band to determine lateral position of a servo read head. The servo band is arranged in a sequence bursts with non-parallel servo stripes in sequentially adjacent sub-frames of a linear tape. The timing intervals comprise at least a first time interval (A) between a first pair of non-parallel servo stripes of a sub-frame; and an alternative time interval (C) between a pair of non-parallel servo stripes intermediate the first time intervals (A), the alternative interval servo stripes of sequentially adjacent sub-frames comprising a second servo stripe of the first pair, and a first servo stripe of a sequentially succeeding first pair. Position signals are ratios involving the first and second time intervals.
摘要翻译： 采用基于定时的伺服频带的替代时间间隔来确定伺服读取头的横向位置。 伺服带在线性带的顺序相邻的子帧中以非平行的伺服条形序列突发。 定时间隔包括子帧的第一对非平行伺服条带之间的至少第一时间间隔（A）; 以及在第一时间间隔（A）之间的一对非平行伺服条之间的替代时间间隔（C），包括第一对的第二伺服条的顺序相邻子帧的替代间隔伺服条，以及第一对 顺序后续的第一对的伺服条纹。 位置信号是涉及第一和第二时间间隔的比率。
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公开(公告)号：US08054576B2
公开(公告)日：2011-11-08
申请号：US12707316
申请日：2010-02-17
CPC分类号： G11B5/584
摘要： A servo detection system for detecting servo tracks of a longitudinal tape. In a read/write head, two servo read heads are spaced laterally on a first head module, and a servo read head is on a second head module spaced longitudinally from the first module. A method comprises initially sensing a tape servo track with one servo read head of the first module and the servo read head of the second module to determine skew misalignment of the servo track. A zero reference value is stored representing the determined skew misalignment. The detection system switches from the one servo read head of each module, to the two servo read heads of the first module, and employs the stored value to position the read/write head in the zero skew position. The two servo read heads are then employed to read two servo tracks to identify the data band and to control skew.
摘要翻译： 一种用于检测纵向磁带的伺服磁道的伺服检测系统。 在读/写头中，两个伺服读头在第一头模块上横向隔开，并且伺服读头位于与第一模块纵向间隔开的第二头模块上。 一种方法包括：首先利用第一模块的一个伺服读取头和第二模块的伺服读取头来感测磁带伺服磁道，以确定伺服磁道的偏斜不对准。 存储表示所确定的倾斜未对准的零参考值。 检测系统从每个模块的一个伺服读取头切换到第一个模块的两个伺服读取头，并使用存储的值将读/写头置于零倾斜位置。 然后使用两个伺服读取头来读取两个伺服磁道以识别数据带并控制偏斜。
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公开(公告)号：US20110205662A1
公开(公告)日：2011-08-25
申请号：US13099276
申请日：2011-05-02
申请人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
发明人： Allen Keith BATES , Nhan Xuan BUI , Reed Alan HANCOCK , Wayne Isami IMAINO , Daniel James WINARSKI
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。
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9.发明申请POSITIONING COARSE SERVO ACTUATOR OF TAPE SERVO SYSTEM TO ALLOW FINE SERVO ACTUATOR TO FOLLOW TAPE SHIFT EXCURSIONS 有权胶带伺服系统的定位伺服伺服驱动器允许精细伺服执行器去跟踪磁带移位传感器公开(公告)号：US20110102937A1
公开(公告)日：2011-05-05
申请号：US12612403
申请日：2009-11-04
申请人： ARMANDO JESUS ARGUMEDO , NHAN XUAN BUI , REED ALAN HANCOCK , ROGER JAVIER JUSTO , ANGELIKI PANTAZI
发明人： ARMANDO JESUS ARGUMEDO , NHAN XUAN BUI , REED ALAN HANCOCK , ROGER JAVIER JUSTO , ANGELIKI PANTAZI
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： Methods, servo systems, and data storage drives follow the lateral shift excursions of longitudinal tape, for example, from flangeless tape guides. A servo sensor is configured to sense lateral position of a tape head with respect to longitudinal servo tracks of the tape, a fine actuator is configured to translate the head laterally, and a coarse actuator is configured to translate the fine actuator laterally. Position error is determined between the head and a desired position related to the servo track, and the fine actuator operated to translate the head laterally to reduce the position error. In the embodiment, lateral shift excursion is sensed from the position error, and the coarse actuator is positioned substantially at a midpoint of the lateral shift excursion. Thus, the fine actuator follows the lateral shift excursions, while the coarse actuator remains at the midpoint.
摘要翻译： 方法，伺服系统和数据存储驱动器遵循纵向磁带的横向偏移偏移，例如，从无法兰磁带引导件。 伺服传感器被配置为感测磁带头相对于磁带的纵向伺服磁道的横向位置，精细致动器构造成横向地平移磁头，并且粗调节器构造成横向平移精细致动器。 在头部和与伺服轨迹相关的所需位置之间确定位置误差，并且精细致动器被操作以横向平移头部以减少位置误差。 在该实施例中，从位置误差检测横向偏移偏移，粗略致动器基本上位于横向偏移偏移的中点。 因此，精细致动器遵循横向偏移偏移，而粗调制器保持在中点。
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公开(公告)号：US20110013313A1
公开(公告)日：2011-01-20
申请号：US12505439
申请日：2009-07-17
IPC分类号： G11B21/02
CPC分类号： G11B15/602 , G11B5/0083 , G11B5/584 , G11B5/78 , G11B15/62
摘要： A method is presented for setting a wrap angle of a read/write head having a servo element and multiple read elements, where the servo element and the read elements can detect a servo signal. The method includes moving a sequential information storage medium having a longitudinal axis and a servo band encoded therein adjacent to the read/write head. The longitudinal axis and a flat upper surface of the read write head define the wrap angle. The method further includes detecting the servo signal using one of the read elements. If the read element is unable to detect the servo signal, then the remaining read elements are sensed to detect the servo signal.
摘要翻译： 提出了一种用于设置具有伺服元件和多个读取元件的读/写头的包角的方法，其中伺服元件和读取元件可以检测伺服信号。 该方法包括移动具有与读/写头相邻编码的纵轴和伺服带的顺序信息存储介质。 读写头的纵向轴线和平坦的上表面限定了包角。 该方法还包括使用读取元件之一来检测伺服信号。 如果读取元件不能检测到伺服信号，则检测剩余的读取元件以检测伺服信号。
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