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11. 发明申请

US20080013202A1 SELF-SERVO WRITING USING STAGED PATTERNING 有权
标题翻译：自助写字板使用分层图案
公开(公告)号：US20080013202A1
公开(公告)日：2008-01-17
申请号：US11750767
申请日：2007-05-18
申请人： Stan Shepherd , S. Smith , Yu Sun
发明人： Stan Shepherd , S. Smith , Yu Sun
IPC分类号： G11B21/02
CPC分类号： G11B5/59644
摘要： Preferred embodiments of the present invention are generally directed to the writing of first servo data to a medium, detecting a velocity integrated position of said first servo data, and writing second servo data in relation to the detected position of the first servo data.
摘要翻译：本发明的优选实施例一般涉及将第一伺服数据写入介质，检测所述第一伺服数据的速度积分位置，以及相对于检测到的第一伺服数据的位置写入第二伺服数据。

12. 发明申请

US20080007271A1 METHODS AND APPARATUSES FOR MEASURING VCM BEMF AT A VCM CONTROL UPDATE RATE 有权
标题翻译：用于在VCM控制更新速率下测量VCM BEMF的方法和装置
公开(公告)号：US20080007271A1
公开(公告)日：2008-01-10
申请号：US11750839
申请日：2007-05-18
申请人： Craig Smith , Stan Shepherd , Xin Yang , Yu Sun
发明人： Craig Smith , Stan Shepherd , Xin Yang , Yu Sun
IPC分类号： G01R35/00 , G01R27/02
CPC分类号： G11B5/5526 , G11B5/59633 , G11B5/59666
摘要： Devices and methods for performing dynamic sampling of a back electromotive force (BEMF) measurement are provided. A device has hardware, including a voice coil motor (VCM) for receiving a VCM command signal and a correction circuit, for obtaining the VCM command signal and a coil voltage measurement from the hardware, where the correction circuit removes a transient voltage measurement due to a change in the VCM command signal from the coil voltage measurement and outputs an estimated BEMF measurement.
摘要翻译：提供了用于执行反电动势（BEMF）测量的动态采样的装置和方法。一种设备具有硬件，包括用于接收VCM命令信号的音圈电机（VCM）和用于从硬件获得VCM命令信号和线圈电压测量的校正电路，其中校正电路去除由于来自线圈电压测量的VCM命令信号的变化并输出估计的BEMF测量值。

13. 发明授权

US07088533B1 Method of self-servo writing in a disk drive using a spiral pattern 有权
标题翻译：使用螺旋图案在磁盘驱动器中自写入的方法
公开(公告)号：US07088533B1
公开(公告)日：2006-08-08
申请号：US10128959
申请日：2002-04-23
申请人： Stan Shepherd , Nathan J. Hays
发明人： Stan Shepherd , Nathan J. Hays
IPC分类号： G11B5/09 , G11B21/02 , G11B5/596
CPC分类号： B82Y10/00 , G11B5/59661 , G11B5/59666 , G11B5/59688 , G11B5/743
摘要： A disk drive includes a head and a disk, spiral patterns are located on the disk, and the disk drive self-writes servo patterns on the disk using the spiral patterns as a reference for servoing the head. In an embodiment, the disk drive uses preliminary servo patterns to determine repeatable runout of the spiral patterns. In another embodiment, the disk drive reads each spiral pattern with multiple timing windows.
摘要翻译：磁盘驱动器包括磁头和磁盘，螺旋图案位于磁盘上，磁盘驱动器使用螺旋图案自动写入磁盘上的伺服模式作为伺服磁头的参考。在一个实施例中，磁盘驱动器使用初步伺服模式来确定螺旋图案的可重复跳动。在另一个实施例中，磁盘驱动器以多个定时窗口读取每个螺旋图案。

14. 发明授权

US07561359B1 Spiral servo patterns with absolute reference point 有权
标题翻译：具有绝对参考点的螺旋伺服模式
公开(公告)号：US07561359B1
公开(公告)日：2009-07-14
申请号：US10859061
申请日：2004-06-02
申请人： Jay Jeong , Tim Everett , Stan Shepherd
发明人： Jay Jeong , Tim Everett , Stan Shepherd
IPC分类号： G11B5/09 , G11B5/596
CPC分类号： G11B5/59633 , G11B5/59661
摘要： The present invention is directed to a method and apparatus for providing an absolute reference point on a disk surface of a disk drive. A write head associated with the disk surface is used to write spirals of servo information thereon, for example, under control of a servo track writer. The spirals of servo information include standard spirals and special spirals. In one embodiment, the special spirals are shorter than the standard spirals and the special spirals are rotationally non-symmetric. For example, an unequal number of standard spirals are interposed between one pair of adjacent special spirals relative to the number of standard spirals interposed between other pairs of adjacent special spirals. The special spirals may take a variety of other forms to distinguish themselves from standard spirals.
摘要翻译：本发明涉及一种用于在盘驱动器的盘表面上提供绝对参考点的方法和装置。与磁盘表面相关联的写头用于在伺服信息写入器的控制下写入伺服信息的螺旋线。伺服信息的螺旋包括标准螺旋和特殊螺旋。在一个实施例中，特殊螺旋比标准螺旋短，并且特殊螺旋旋转地不对称。例如，相对于插入在其他相邻的特殊螺旋对之间的标准螺旋的数量，在一对相邻的特殊螺旋之间插入不等数量的标准螺旋。特殊的螺旋可能采取各种其他形式来区别于标准螺旋。

15. 发明申请

US20070242571A1 DISK-SYNCHRONIZED LOADING/UNLOADING OF MAGNETIC HEAD 有权
标题翻译：磁性同步加载/卸载磁头
公开(公告)号：US20070242571A1
公开(公告)日：2007-10-18
申请号：US11736441
申请日：2007-04-17
申请人： Craig Smith , Bernhard Hiller , Stan Shepherd , Erhard Schreck
发明人： Craig Smith , Bernhard Hiller , Stan Shepherd , Erhard Schreck
IPC分类号： G11B7/085
CPC分类号： G11B21/12
摘要： Systems and methods from loading/unloading a data head for a disk drive provide for more efficient use of disk space. A method of loading/unloading a data head for a disk drive comprises determining a disk phase of a spinning disk arrangement, determining a loading/unloading position based on the disk phase, and loading or unloading the data head on or from, respectively, the spinning disk arrangement based on the determined disk phase. The determining a disk phase may be based on zero crossing of voltages for a three-phase motor associated with the spinning disk arrangement.
摘要翻译：从磁盘驱动器加载/卸载数据头的系统和方法可以更有效地使用磁盘空间。一种用于加载/卸载用于磁盘驱动器的数据头的方法包括确定旋转磁盘布置的磁盘相位，基于磁盘相位确定加载/卸载位置，以及分别在或从其分别加载或卸载数据磁头基于确定的磁盘相位旋转磁盘布置。确定盘相位可以基于与旋转盘装置相关联的三相电动机的电压的过零点。

16. 发明授权

US07375918B1 Method of self-servo writing in a disk drive using multiple timing windows 有权
标题翻译：使用多个定时窗口在磁盘驱动器中自写入的方法
公开(公告)号：US07375918B1
公开(公告)日：2008-05-20
申请号：US11413416
申请日：2006-04-27
申请人： Stan Shepherd , Nathan J. Hays
发明人： Stan Shepherd , Nathan J. Hays
IPC分类号： G11B5/596
CPC分类号： B82Y10/00 , G11B5/59661 , G11B5/59666 , G11B5/59688 , G11B5/743
摘要： A disk drive includes a head and a disk, spiral patterns are located on the disk, and the disk drive self-writes servo patterns on the disk using the spiral patterns as a reference for servoing the head. In an embodiment, the disk drive uses preliminary servo patterns to determine repeatable runout of the spiral patterns. In another embodiment, the disk drive reads each spiral pattern with multiple timing windows.
摘要翻译：磁盘驱动器包括磁头和磁盘，螺旋图案位于磁盘上，磁盘驱动器使用螺旋图案自动写入磁盘上的伺服模式作为伺服磁头的参考。在一个实施例中，磁盘驱动器使用初步伺服模式来确定螺旋图案的可重复跳动。在另一个实施例中，磁盘驱动器以多个定时窗口读取每个螺旋图案。

17. 发明授权

US06738205B1 Self-writing of servo patterns in disk drives 有权
标题翻译：在磁盘驱动器中自动写入伺服模式
公开(公告)号：US06738205B1
公开(公告)日：2004-05-18
申请号：US09903445
申请日：2001-07-08
申请人： Patrick Moran , Tim Everett , Peter McEwen , Mike Moser , Stan Shepherd , Eduardo Gentile Veiga , Murat Erkocevic , Bill Baker
发明人： Patrick Moran , Tim Everett , Peter McEwen , Mike Moser , Stan Shepherd , Eduardo Gentile Veiga , Murat Erkocevic , Bill Baker
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/59633
摘要： A method and system for self-servo writing a disk drive by transferring a servo reference pattern by magnetic printing onto at least one storage surface of a reference disk, wherein a resulting printed reference pattern includes embedded servo information providing servo timing and transducer head position information; assembling the disk drive including the steps of installing at least said disk into the disk drive and enclosing said disk and the data transducers within a housing sealed against particulate contamination from an eternal ambient environment; reading the printed reference pattern from said disk via at least one transducer head to generate a readback signal; sampling the readback signal at a sampling rate to generate a sampled signal; processing the sampled signal waveform specturm to generate a recovered signal including the embedded servo information and a fundamental frequency of the sampled signal; using the servo information from the recovered signal to precisely position and maintain the data transducers at concentric track locations of disk storage surfaces; and self-writing disk drive servo patterns onto the storage surfaces at the concentric track locations with the data transducers in accordance with disk drive servo pattern features.
摘要翻译：一种用于通过磁性印刷将伺服参考图案转移到参考盘的至少一个存储表面上来自动伺服写入磁盘驱动器的方法和系统，其中所得到的打印参考图案包括提供伺服定时和换能器头部位置信息的嵌入式伺服信息 ; 组装磁盘驱动器包括以下步骤：至少将所述磁盘安装到磁盘驱动器中，并将所述磁盘和数据传感器封装在壳体内，密封以防止来自永恒环境环境的颗粒污染物; 经由至少一个换能器头从所述盘读取打印的参考图案以产生回读信号; 以采样率对回读信号进行采样以产生采样信号; 处理采样信号波形谱以产生包括嵌入伺服信息和采样信号的基频的恢复信号; 使用来自恢复信号的伺服信息来精确地将数据传感器定位并保持在盘存储表面的同心轨迹位置; 以及根据磁盘驱动器伺服模式特征，使用数据传感器在同心轨道位置的存储表面上自写盘驱动器伺服模式。

18. 发明授权

US08767337B2 Disk-synchronized loading/unloading of magnetic head 有权
标题翻译：磁头同步加载/卸载磁头
公开(公告)号：US08767337B2
公开(公告)日：2014-07-01
申请号：US11736441
申请日：2007-04-17
申请人： Craig Smith , Bernhard Hiller , Stan Shepherd , Erhard Schreck
发明人： Craig Smith , Bernhard Hiller , Stan Shepherd , Erhard Schreck
IPC分类号： G11B5/596
CPC分类号： G11B21/12
摘要： Systems and methods from loading/unloading a data head for a disk drive provide for more efficient use of disk space. A method of loading/unloading a data head for a disk drive comprises determining a disk phase of a spinning disk arrangement, determining a loading/unloading position based on the disk phase, and loading or unloading the data head on or from, respectively, the spinning disk arrangement based on the determined disk phase. The determining a disk phase may be based on zero crossing of voltages for a three-phase motor associated with the spinning disk arrangement.
摘要翻译：从磁盘驱动器加载/卸载数据头的系统和方法可以更有效地使用磁盘空间。一种用于加载/卸载用于磁盘驱动器的数据头的方法包括确定旋转磁盘布置的磁盘相位，基于磁盘相位确定加载/卸载位置，以及分别在或从其分别加载或卸载数据磁头基于确定的磁盘相位旋转磁盘布置。确定盘相位可以基于与旋转盘装置相关联的三相电动机的电压的过零点。

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