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1.发明授权公开(公告)号：US08760779B2
公开(公告)日：2014-06-24
申请号：US13341098
申请日：2011-12-30
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/6088 , G11B2005/0021 , G11B2005/0024
摘要： In one embodiment, a system includes a medium, a magnetic head having a write element adapted for writing data to the medium, a MAMR element and/or a TAMR element adapted for assisting recording on the medium, the MAMR element having a microwave-generating portion that receives current for operation thereof, the TAMR element having a localized heat-generating portion that receives current for operation thereof, and a read element adapted for reading data from the medium, a device adapted for measuring environmental conditions relating to the TAMR/MAMR elements and the medium, and a controller adapted for controlling operation of the magnetic head and adjusting operating parameters of the system based on the environmental conditions. The environmental conditions include temperature, a reproduced signal of the read element, and/or clearance between the TAMR/MAMR elements and the medium. The operating parameters include the clearance, amount of current injected to the TAMR/MAMR elements, and/or write current.
摘要翻译： 在一个实施例中，系统包括介质，具有适于向介质写入数据的写入元件的磁头，适于在介质上辅助记录的MAMR元件和/或TAMR元件，所述MAMR元件具有微波产生 接收用于其操作的电流的部分，所述TAMR元件具有接收用于其操作的电流的局部热产生部分和适于从所述介质读取数据的读取元件，适于测量与所述TAMR / MAMR有关的环境条件的装置 元件和介质，以及控制器，其适于控制磁头的操作并且基于环境条件调整系统的操作参数。 环境条件包括温度，读取元件的再生信号和/或TAMR / MAMR元件与介质之间的间隙。 操作参数包括间隙，注入到TAMR / MAMR元件的电流量和/或写入电流。
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2.发明申请公开(公告)号：US20130170060A1
公开(公告)日：2013-07-04
申请号：US13341098
申请日：2011-12-30
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/6088 , G11B2005/0021 , G11B2005/0024
摘要： In one embodiment, a system includes a medium, a magnetic head having a write element adapted for writing data to the medium, a MAMR element and/or a TAMR element adapted for assisting recording on the medium, the MAMR element having a microwave-generating portion that receives current for operation thereof, the TAMR element having a localized heat-generating portion that receives current for operation thereof, and a read element adapted for reading data from the medium, a device adapted for measuring environmental conditions relating to the TAMR/MAMR elements and the medium, and a controller adapted for controlling operation of the magnetic head and adjusting operating parameters of the system based on the environmental conditions. The environmental conditions include temperature, a reproduced signal of the read element, and/or clearance between the TAMR/MAMR elements and the medium. The operating parameters include the clearance, amount of current injected to the TAMR/MAMR elements, and/or write current.
摘要翻译： 在一个实施例中，系统包括介质，具有适于向介质写入数据的写入元件的磁头，适于在介质上辅助记录的MAMR元件和/或TAMR元件，所述MAMR元件具有微波产生 接收用于其操作的电流的部分，所述TAMR元件具有接收用于其操作的电流的局部热产生部分和适于从所述介质读取数据的读取元件，适于测量与所述TAMR / MAMR有关的环境条件的装置 元件和介质，以及控制器，其适于控制磁头的操作并且基于环境条件调整系统的操作参数。 环境条件包括温度，读取元件的再生信号和/或TAMR / MAMR元件与介质之间的间隙。 操作参数包括间隙，注入到TAMR / MAMR元件的电流量和/或写入电流。
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3.发明授权Method and apparatus for determining track density during a servo-track writing operation 失效用于在伺服轨迹写入操作期间确定轨道密度的方法和装置公开(公告)号：US06788480B1
公开(公告)日：2004-09-07
申请号：US10028329
申请日：2001-12-22
申请人： Raffi Codilian , William D. Johns
发明人： Raffi Codilian , William D. Johns
IPC分类号： G11B502
CPC分类号： G11B5/59633 , G11B5/09 , G11B27/36 , G11B2220/20
摘要： Disk drives are produced having a track density that is determined during a servo-track writing operation. A plurality of calibration tracks is written onto a storage medium of a disk of a head-disk assembly at a calibration track density. The calibration track density corresponds to a portion of a nominal track density profile. An aspect of the servo performance of the head-disk assembly is measured at the calibration tracks. A selected track density profile is identified based on the measured servo performance. The plurality of tracks is written to storage medium at the selected track density profile.
摘要翻译： 产生磁盘驱动器，其具有在伺服磁道写入操作期间确定的磁道密度。 多个校准轨道以校准轨道密度写入头盘组件的盘的存储介质上。 校准轨道密度对应于标称轨道密度分布的一部分。 在校准轨道上测量头盘组件的伺服性能的一个方面。 基于测量的伺服性能来识别选定的轨道密度分布。 多个磁道以选定的磁道密度分布写入存储介质。
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公开(公告)号：US11555331B2
公开(公告)日：2023-01-17
申请号：US17127769
申请日：2020-12-18
申请人： William D. Johns
发明人： William D. Johns
摘要： A barrier control system running a program thereon, the barrier control system including a main body, a control unit disposed within at least a portion of the main body to execute the program to control operations of the main body, and at least one control device connected to the control unit to control operations of the main body through the control unit based on the program.
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5.发明授权Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer 失效通过测量读写宽度并改变伺服写入器中的磁道间距而制造和制造磁盘驱动器的方法公开(公告)号：US07035026B2
公开(公告)日：2006-04-25
申请号：US10978644
申请日：2004-11-01
CPC分类号： G11B5/59633 , G11B5/59638 , Y10T29/49036
摘要： A method of manufacturing a disk drive and a disk drive where the width of the read element and the width of the write element are both measured at servo-writing time and the track pitch of the disk drive is set on the basis of those measurements. Disk drives with superior head width combinations are servo-written with a narrower track pitch in order to have a higher storage capacity. Disk drives with inferior head width combinations are detected before servo-writing so that the disk drive may be servo-written with wider track pitch rather than with a nominal track pitch that results in a subsequent drive failure during initial burn-in (IBI). The heads are used more efficiently in that heads that are more capable are used to their ability and less capable heads that would otherwise be disposed of are used at all.
摘要翻译： 基于这些测量，设置在伺服写入时刻测量读取元件的宽度和写入元件的宽度的盘驱动器和盘驱动器的方法，并且基于这些测量来设置磁盘驱动器的磁道间距。 具有优异头宽度组合的磁盘驱动器以较窄的磁道间距进行伺服写入，以具有更高的存储容量。 在伺服写入之前检测到具有较差头部宽度组合的磁盘驱动器，以便磁盘驱动器可以以更宽的磁道间距进行伺服写入，而不是在初始老化（IBI）期间导致后续驱动器故障的标称磁道间距。 头部被更有效地使用在那些使用能力更强的头部，否则将被处理的头部不太可用。
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6.发明授权Method of manufacturing a disk drive by measuring the read width in the servo-writer to set the write unsafe limit 失效通过测量伺服写入器中的读取宽度来设置写入不安全限制来制造磁盘驱动器的方法公开(公告)号：US06714372B1
公开(公告)日：2004-03-30
申请号：US09967838
申请日：2001-09-28
申请人： Raffi Codilian , William D. Johns
发明人： Raffi Codilian , William D. Johns
IPC分类号： G11B1504
CPC分类号： G11B5/59633 , G11B5/59638
摘要： A method of manufacturing a disk drive where the width of the read element is measured at servo-writing time in order to establish a write unsafe (WUS) limit corresponding to a maximum distance during writing that the write element is permitted to move radially offtrack from the centerline of a data track before writing is disabled. The method includes the steps of measuring a width of the read element with a servo track writer and determining a write unsafe (WUS) limit based on the data track pitch and the measured width of the read element. Varying the WUS limit on a drive-by-drive basis enhances the performance of some drives that would otherwise have capability that goes unused.
摘要翻译： 一种制造磁盘驱动器的方法，其中在伺服写入时间测量读取元件的宽度，以便建立与写入期间的最大距离相对应的写入不安全（WUS）极限，使得允许写入元件径向地从 写入之前的数据轨道的中心线被禁用。 该方法包括以下步骤：使用伺服轨迹写入器测量读取元件的宽度，并且基于数据轨道间距和读取元件的测量宽度确定写入不安全（WUS）极限。 逐个驱动的基础上改变WUS限制会增强某些驱动器的性能，否则这些驱动器将具有未使用的功能。
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公开(公告)号：US20220185470A1
公开(公告)日：2022-06-16
申请号：US17121604
申请日：2020-12-14
申请人： William D. Johns
发明人： William D. Johns
IPC分类号： B64C39/02 , B64D47/02 , B64D47/08 , F21V21/108 , H05B47/105 , H05B47/155 , H05B47/19
摘要： An aerial illumination system running a program thereon, the aerial illumination system including at least one illuminating unmanned aerial vehicle, including a main body, and a media unit disposed on at least a portion of the main body to illuminate a target area, and at least one control device connected to the at least one illuminating unmanned aerial vehicle to control operations of the at least one illuminating unmanned aerial vehicle based on the program.
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公开(公告)号：US20220195751A1
公开(公告)日：2022-06-23
申请号：US17127769
申请日：2020-12-18
申请人： William D. Johns
发明人： William D. Johns
摘要： A barrier control system running a program thereon, the barrier control system including a main body, a control unit disposed within at least a portion of the main body to execute the program to control operations of the main body, and at least one control device connected to the control unit to control operations of the main body through the control unit based on the program.
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9.发明授权Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer 失效通过测量读写宽度并改变伺服写入器中的磁道间距而制造和制造磁盘驱动器的方法公开(公告)号：US06885514B1
公开(公告)日：2005-04-26
申请号：US09920665
申请日：2001-07-31
CPC分类号： G11B5/59633 , G11B5/59638 , Y10T29/49036
摘要： A method of manufacturing a disk drive and a disk drive made with such method where the width of the read element and the width of the write element are both measured at servo-writing time and the track pitch of the disk drive is set on the basis of those measurements. Disk drives with superior head width combinations are servo-written with a narrower track pitch in order to have a higher storage capacity. Disk drives with inferior head width combinations are detected before servo-writing so that the disk drive may be servo-written with wider track pitch rather than with a nominal track pitch that results in a subsequent drive failure during initial burn-in (IBI). The heads are used more efficiently in that heads that are more capable are used to their ability and less capable heads that would otherwise be disposed of are used at all. Fewer disk drives are required to be reworked and returned to the servo-writing process.
摘要翻译： 一种制造盘驱动器和磁盘驱动器的方法，其中读取元件的宽度和写入元件的宽度均以伺服写入时间测量，并且基于磁盘驱动器的磁道间距设置 的这些测量。 具有优异头宽度组合的磁盘驱动器以较窄的磁道间距进行伺服写入，以具有更高的存储容量。 在伺服写入之前检测到具有较差头部宽度组合的磁盘驱动器，以便磁盘驱动器可以以更宽的磁道间距进行伺服写入，而不是在初始老化（IBI）期间导致后续驱动器故障的标称磁道间距。 头部被更有效地使用在那些使用能力更强的头部，否则将被处理的头部不太可用。 需要重新加工更少的磁盘驱动器并返回到伺服写入过程。
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10.发明授权Method and apparatus for determining operational spindle rotation rate in a disk drive 失效用于确定磁盘驱动器中的主轴转动速度的方法和装置公开(公告)号：US06791782B1
公开(公告)日：2004-09-14
申请号：US10066223
申请日：2002-01-31
IPC分类号： G11B1546
CPC分类号： G11B5/59611 , G11B19/28
摘要： A method and an apparatus select the operational spindle rotation rate for a disk drive based on measured performance of the head-disk assembly. The position error values are measured and analyzed to generate a position error metric. Based on the value of the position error metric, an operational spindle rotation rate is selected for use when the head-disk assembly is combined with a controller to produce a disk drive.
摘要翻译： 一种方法和装置，基于头磁盘组件的测量性能来选择磁盘驱动器的操作主轴旋转速率。 测量和分析位置误差值以产生位置误差度量。 基于位置误差度量的值，当头盘组件与控制器组合以产生磁盘驱动器时，选择操作主轴旋转速率用于使用。
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