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1. 发明授权

US07095580B2 Methods to determine gross and fine positioning on a reference surface of a media 有权
标题翻译：确定介质参考表面上的粗略和精确定位的方法
公开(公告)号：US07095580B2
公开(公告)日：2006-08-22
申请号：US10733131
申请日：2003-12-10
申请人： Richard M. Ehrlich , Gary W. Calfee , Anton Gerasimov , James V. Wiseman
发明人： Richard M. Ehrlich , Gary W. Calfee , Anton Gerasimov , James V. Wiseman
IPC分类号： G11B5/596
CPC分类号： G11B5/5552 , G11B5/012 , G11B5/865 , G11B2005/001 , G11B2005/0021
摘要： Methods in accordance with the present invention can include determining a position of a head along a stroke by locating one or more marker-zones printed to a reference surface of a disk. The one or more marker-zones can be printed to a portion of the reference surface as one or more pulses from a template pattern that can further comprise a plurality of chevrons. In one embodiment, each pulse can trace the motion of the stroke along at least a portion of the radius of the reference surface. A pulse can identify a marker-zone edge when the pulse disappears at some radius from the center of the disk. By moving the head along the stroke, the marker-zone edge can be detected and a gross position determined. A fractional position can be determined by measuring a phase of a chevron located at substantially the same radial location as the edge.
摘要翻译：根据本发明的方法可以包括通过定位打印到盘的参考表面的一个或多个标记区来确定头沿着笔划的位置。可以将一个或多个标记区域打印到参考表面的一部分，作为可以进一步包括多个人字纹的模板图案的一个或多个脉冲。在一个实施例中，每个脉冲可以沿着参考表面的半径的至少一部分跟踪行程的运动。当脉冲从磁盘中心的某个半径消失时，脉冲可以识别标记区域边缘。通过沿着行程移动头部，可以检测到标记区域边缘并确定总位置。可以通过测量位于与边缘基本相同的径向位置处的人字形的相位来确定小数位置。

2. 发明授权

US07092182B2 Marker-zone to determine gross positioning on a reference surface of a media 有权
标题翻译：标记区域，用于确定介质参考表面上的总体定位
公开(公告)号：US07092182B2
公开(公告)日：2006-08-15
申请号：US10733013
申请日：2003-12-10
申请人： Richard M. Ehrlich , Gary W. Calfee , Anton Gerasimov , James V. Wiseman
发明人： Richard M. Ehrlich , Gary W. Calfee , Anton Gerasimov , James V. Wiseman
IPC分类号： G11B5/09
CPC分类号： G11B5/59633 , G11B5/865 , G11B2005/0021
摘要： Template patterns in accordance with the present invention can include one or more marker-zones printed to a reference surface of a disk for determining gross-position along a stroke of a read head connected with a rotary actuator. The one or more marker-zones can be printed or otherwise written to a portion of the reference surfaces as one or more pulses. In one embodiment, each pulse can trace the motion of the stroke along at least a portion of the radius of the reference surface. A pulse can identify a marker-zone edge when a di-bit (a transition pair representing a pulse) disappears at some radius from center of the disk. At a radius closer to the center of the disk, the di-bit can abruptly reappear so that the pulse is continued. The interruption in the radial continuity of the magnetized pulse defines the marker-zone and can be any length.
摘要翻译：根据本发明的模板图案可以包括打印到盘的参考表面的一个或多个标记区，用于确定沿着与旋转致动器连接的读取头的行程的总位置。可以将一个或多个标记区域作为一个或多个脉冲打印或以其他方式写入参考表面的一部分。在一个实施例中，每个脉冲可以沿着参考表面的半径的至少一部分跟踪行程的运动。当二位（表示脉冲的转换对）从磁盘中心的某个半径消失时，脉冲可以识别标记区域边缘。在靠近盘中心的半径处，二位可以突然重新出现，使脉冲持续。磁化脉冲的径向连续性的中断限定了标记区域，并且可以是任何长度。

3. 发明申请

US20080239556A1 Linearizing position error signal using spiral servo information 审中-公开
标题翻译：使用螺旋伺服信息线性化位置误差信号
公开(公告)号：US20080239556A1
公开(公告)日：2008-10-02
申请号：US11731452
申请日：2007-03-30
申请人： James V. Wiseman , Gary W. Calfee
发明人： James V. Wiseman , Gary W. Calfee
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： A method for determining a position error signal in a disk drive includes writing a servo signal that has a variable offset from a track center for a plurality of concentric tracks in a servo wedge on a disk surface, forming a spiral servo track, observing the offset values for the servo signal in the servo wedges at a first of the plurality of tracks, and observing the offset values for the servo signal in the servo wedges at a second of the plurality of tracks. The method also includes determining the first error amounts from the offset values at the first of the plurality of tracks, and determining the second error amounts from the offset values at the second of the plurality of tracks. If the first error amounts and the second error amounts are equal, using one of the first or second error amounts as a correction update to a head non-linearity look-up table.
摘要翻译：一种用于确定磁盘驱动器中的位置误差信号的方法包括将具有来自磁道中心的可变偏移的伺服信号写入到盘表面上的伺服楔形中，形成螺旋伺服磁道，观察偏移伺服伺服伺服信号的值在多个轨迹中的第一个轨迹处，并且在多个轨迹中的第二个轨迹处观察伺服楔形中的伺服信号的偏移值。该方法还包括从多个磁道中的第一个的偏移值确定第一误差量，以及根据多个磁迹中的第二磁道的偏移值确定第二误差量。如果第一误差量和第二误差量相等，则使用第一或第二误差量中的一个作为头部非线性查找表的校正更新。

4. 发明授权

US6061200A In-drive correction of servo pattern errors 失效
标题翻译：驱动器校正伺服模式错误
公开(公告)号：US6061200A
公开(公告)日：2000-05-09
申请号：US927616
申请日：1997-09-11
申请人： Stanley H. Shepherd , Richard M. Ehrlich , James V. Wiseman , Richard T. Curran , William R. Akin, Jr.
发明人： Stanley H. Shepherd , Richard M. Ehrlich , James V. Wiseman , Richard T. Curran , William R. Akin, Jr.
IPC分类号： G11B5/596 , G11B21/10
CPC分类号： G11B5/59627 , G11B5/59638 , G11B5/59655
摘要： Embedded servo sectors within a data track of a hard disk drive including a rotating data storage disk and a closed loop rotary actuator structure for positioning a data transducer head relative to the data track are written by a method including the steps of positioning the rotary actuator structure relative to the data track with a laser-interferometer-based servo writer and writing a pattern of circumferentially sequential, radially offset fine position bursts within each servo sector with the data transducer head, this step including writing-in undetermined position errors within each pattern being written, moving the disk drive to a self scan environment away from the servo writer, operating the rotary actuator structure in closed loop for following the data track by reference to the servo burst pattern, extracting the undetermined position error from each pattern thereby to iteratively determine written-in position errors, generating burst correction values from the determined written-in position errors, and writing the burst correction values to the data track for later use by the closed loop rotary actuator structure during following of the data track to remove the written-in position errors.
摘要翻译：包括旋转数据存储盘的硬盘驱动器的数据轨道内的嵌入式伺服扇区和用于相对于数据轨道定位数据变换器头的闭环旋转致动器结构通过包括以下步骤的方法来写入：将旋转致动器结构相对于具有基于激光干涉仪的伺服写入器的数据轨迹，并且使用数据换能器头在每个伺服扇区内写入周向顺序的径向偏移的精细位置脉冲串的模式，该步骤包括在每个模式内写入未定位置误差写入，将磁盘驱动器移动到远离伺服写入器的自扫描环境，通过参考伺服脉冲串模式在闭环中操作旋转致动器结构以跟随数据轨迹，从每个图案提取未定位置误差，从而迭代地确定写入位置误差，从确定的wr产生突发校正值输入位置误差，以及将脉冲串校正值写入数据轨道，以便在跟踪数据轨道期间由闭环旋转致动器结构稍后使用以消除写入位置误差。

5. 发明授权

US5444583A Disk drive having on-board triggered digital sampling analyzer 失效
标题翻译：具有板载触发数字采样分析仪的磁盘驱动器
公开(公告)号：US5444583A
公开(公告)日：1995-08-22
申请号：US327443
申请日：1994-10-21
申请人： Richard M. Ehrlich , James V. Wiseman
发明人： Richard M. Ehrlich , James V. Wiseman
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/5534 , G11B5/596 , G11B5/59644
摘要： A disk drive includes an on-board digital sampling analyzer. The drive has a data storage disk spinning at a predetermined velocity, a data transducer head for reading information recorded on a storage surface of the storage disk, an electromechanical actuator mechanism for positioning the data transducer head relative to the disk, a digital actuator controller means for controlling the actuator mechanism within a closed loop head positioner servo and having internal registers at addressable locations, a memory for storing information read from the disk and for storing at least one trace record, and a memory controller for controlling addressing of the memory. A trace taking process and structure reads at least one of the internal digital registers of the actuator controller during a sampling interval and records a resultant trace value within the trace record of the memory. An on-board analyzer process retrieves and processes the trace record into a correction. The correction is then provided by the analyzer to adjust operation of the actuator controller.
摘要翻译：磁盘驱动器包括板上数字采样分析仪。驱动器具有以预定速度旋转的数据存储盘，用于读取记录在存储盘的存储表面上的信息的数据传感器头，用于将数据传感器头相对于盘定位的机电致动器机构，数字致动器控制器装置用于控制闭环磁头定位器伺服内的致动器机构并且具有可寻址位置的内部寄存器，用于存储从磁盘读取并用于存储至少一个跟踪记录的信息的存储器，以及用于控制存储器寻址的存储器控制器。采样过程和结构在采样间隔期间读取致动器控制器的至少一个内部数字寄存器，并将结果轨迹值记录在存储器的跟踪记录中。板载分析器进程将跟踪记录检索并处理到校正中。然后由分析仪提供校正以调节致动器控制器的操作。

6. 发明授权

US5793559A In drive correction of servo pattern errors 失效
标题翻译：驱动器校正伺服模式错误
公开(公告)号：US5793559A
公开(公告)日：1998-08-11
申请号：US607507
申请日：1996-02-27
申请人： Stanley H. Shepherd , Richard M. Ehrlich , James V. Wiseman , Richard T. Curran , William R. Akin, Jr.
发明人： Stanley H. Shepherd , Richard M. Ehrlich , James V. Wiseman , Richard T. Curran , William R. Akin, Jr.
IPC分类号： G11B5/596 , G11B21/10
CPC分类号： G11B5/59627 , G11B5/59638 , G11B5/59655
摘要： Embedded servo sectors within a data track of a hard disk drive including a rotating data storage disk and a closed loop rotary actuator structure for positioning a data transducer head relative to the data track are written by a method including the steps of positioning the rotary actuator structure relative to the data track with a laser-interferometer-based servo writer and writing a pattern of circumferentially sequential, radially offset fine position bursts within each servo sector with the data transducer head, this step including writing-in undetermined position errors within each pattern being written, moving the disk drive to a self scan environment away from the servo writer, operating the rotary actuator structure in closed loop for following the data track by reference to the servo burst pattern, extracting the undetermined position error from each pattern thereby to iteratively determine written-in position errors, generating burst correction values from the determined written-in position errors, and writing the burst correction values to the data track for later use by the closed loop rotary actuator structure during following of the data track to remove the written-in position errors.
摘要翻译：包括旋转数据存储盘的硬盘驱动器的数据轨道内的嵌入式伺服扇区和用于相对于数据轨道定位数据变换器头的闭环旋转致动器结构通过包括以下步骤的方法来写入：将旋转致动器结构相对于具有基于激光干涉仪的伺服写入器的数据轨迹，并且使用数据换能器头在每个伺服扇区内写入周向顺序的径向偏移的精细位置脉冲串的模式，该步骤包括在每个模式内写入未定位置误差写入，将磁盘驱动器移动到远离伺服写入器的自扫描环境，通过参考伺服脉冲串模式在闭环中操作旋转致动器结构以跟随数据轨迹，从每个图案提取未定位置误差，从而迭代地确定写入位置误差，从确定的wr产生突发校正值输入位置误差，以及将脉冲串校正值写入数据轨道，以便在跟踪数据轨道期间由闭环旋转致动器结构稍后使用以消除写入位置误差。

7. 发明授权

US08077428B1 Disk drive correcting position error signal based on velocity of head 有权
标题翻译：磁盘驱动器根据磁头速度校正位置误差信号
公开(公告)号：US08077428B1
公开(公告)日：2011-12-13
申请号：US12821360
申请日：2010-06-23
申请人： Min Chen , Qixing Zheng , James V. Wiseman
发明人： Min Chen , Qixing Zheng , James V. Wiseman
IPC分类号： G11B21/02
CPC分类号： G11B5/59627
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors that define a plurality of servo tracks. A position error signal (PES) is generated in response to the servo sectors, and a head velocity is estimated relative to the servo tracks. A correction value is generated as a function of the head velocity and the PES, and the PES is adjusted using the correction value to generate an adjusted PES. The head is positioned over the disk in response to the adjusted PES.
摘要翻译：公开了一种磁盘驱动器，其包括在盘上致动的磁头，该磁头包括限定多个伺服磁道的多个伺服扇区。响应于伺服扇区产生位置误差信号（PES），并且相对于伺服磁道估计磁头速度。产生作为头部速度和PES的函数的校正值，并且使用校正值来调整PES以生成经调整的PES。响应于经调整的PES，头位于盘上方。

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