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31. 发明授权

US09117474B1 Implementing write head device for contact detection and spacing sensing 有权
标题翻译：实现用于接触检测和间距检测的写头设备
公开(公告)号：US09117474B1
公开(公告)日：2015-08-25
申请号：US14504794
申请日：2014-10-02
申请人： HGST Netherlands B.V.
发明人： John Contreras , Samir Y. Garzon , Timothy Scott Hughbanks , Albert John Wallash
IPC分类号： G11B21/02 , G11B5/60 , G11B5/00
CPC分类号： G11B5/6005 , G11B5/6076 , G11B2005/0021
摘要： A method, apparatus, and system are provided for implementing a write head device for writer-to-disk contact detection and spacing sensing of recording heads in hard disk drives (HDDs). A write head device, such as a spin-torque oscillator (STO), is provided between a main pole tip and a surrounding magnetic shield of the writer in the recording head. A pair of connections is provided to the magnetic shield and the main pole of the writer, and resistance of the write head device is measured to detect writer to disk spacing and contact.
摘要翻译：提供了一种方法，装置和系统，用于实现写硬盘接触检测和记录头在硬盘驱动器（HDD）中的间隔感测的写头设备。诸如自旋扭矩振荡器（STO）的写入头装置设置在记录头中的写入器的主极尖端和周围的磁屏蔽之间。提供一对连接到磁屏蔽和写入器的主极，并测量写头设备的电阻以检测写入器到磁盘的间隔和接触。

32. 发明授权

US09087553B2 Tape head with thermal tape-head distance sensor 有权
标题翻译：磁带头，带热带头距离传感器
公开(公告)号：US09087553B2
公开(公告)日：2015-07-21
申请号：US14250727
申请日：2014-04-11
申请人： International Business Machines Corporation
发明人： Laurent A. Dellmann , Johan B. C. Engelen , Simeon Furrer , Mark Alfred Lantz , Hugo E. Rothuizen
IPC分类号： G11B21/02 , G11B27/36 , G11B5/008 , G11B5/60
CPC分类号： G11B5/60 , G01K7/16 , G11B5/00813 , G11B27/36
摘要： Tape head with thermal tape-head distance sensor to reduce the distance between the tape and the head to allow an increase in areal density. A tape head designed for reading and/or writing to a tape, including: a tape bearing surface shaped to form an air bearing when moving the tape with respect to the tape bearing surface; a thermal tape-head distance sensor circuit adapted to sense heat dissipated at the level of the tape bearing surface by the tape and thereby sense a distance between the tape bearing surface and the tape; and tape-head distance control means connected to the thermal tape-head distance sensor circuit to receive a signal provided by the tape-head distance sensor circuit and configured to alter the distance according to a signal received from the tape-head distance sensor circuit. This invention is further directed to a method of tape-head distance control for the above tape head.
摘要翻译：磁带头带有热带头距离传感器，以减少磁带和磁头之间的距离，以增加面密度。一种设计用于读取和/或写入磁带的磁带头，包括：当磁带相对于磁带承载表面移动时成形为形成空气轴承的磁带轴承表面; 一种热带头距离传感器电路，其适于感测通过带在带承载表面的水平面上消散的热量，从而感测带承载表面和带之间的距离; 以及磁带头距离控制装置，其连接到热磁带头距离传感器电路，以接收由磁带头距离传感器电路提供的信号，并且被配置为根据从磁带头距离传感器电路接收的信号改变距离。本发明还涉及一种用于上述磁带头的磁带头距离控制的方法。

33. 发明授权

US09064542B1 Scheduled load of heads to reduce lubricant migration on pole tip and decrease time to ready 有权
标题翻译：头部的预定负载，以减少极尖上的润滑剂迁移并减少准备时间
公开(公告)号：US09064542B1
公开(公告)日：2015-06-23
申请号：US13903464
申请日：2013-05-28
申请人： Western Digital Technologies, Inc.
发明人： Ralf Brunner
IPC分类号： G11B21/02 , G11B21/21
CPC分类号： G11B5/54 , G11B5/40
摘要： A disk drive includes: a disk, a head, and control circuitry including a servo control system operable to actuate the head. The head is unloaded onto a ramp for a period of time based on a time constant. The head is loaded onto the disk after the period of time has elapsed and head-media spacing (HMS) is repeatedly measured. The head is unloaded when the HMS measurements become constant within a predetermined range.
摘要翻译：磁盘驱动器包括：磁盘，磁头和控制电路，其包括可操作以致动磁头的伺服控制系统。根据时间常数，头部被卸载到斜坡上一段时间。经过一段时间后头部被装载到磁盘上，重复测量磁头间隔（HMS）。当HMS测量在预定范围内变得恒定时，头被卸载。

34. 发明授权

US09064537B1 Disk drive measuring radial offset between heads by detecting a difference between ramp contact 有权
标题翻译：磁盘驱动器通过检测斜坡接触之间的差异来测量头部之间的径向偏移
公开(公告)号：US09064537B1
公开(公告)日：2015-06-23
申请号：US14040960
申请日：2013-09-30
申请人： Western Digital Technologies, Inc.
发明人： Jianbin Nie , Edgar D. Sheh , Brian P. Rigney
IPC分类号： G11B5/09 , G11B21/02 , G11B5/596
CPC分类号： G11B5/59627 , G11B21/12
摘要： A disk drive is disclosed comprising a plurality of disk surfaces including a first disk surface and a second disk surface. The disk drive further comprises a plurality of heads including a first head actuated over the first disk surface, and a second head actuated over the second disk surface, as well as a ramp proximate an outer diameter of the disk surfaces. A first interval is measured while moving the first head toward the ramp until the first head contacts the ramp, and a second interval is measured while moving the second head toward the ramp until the second head contacts the ramp.
摘要翻译：公开了一种磁盘驱动器，其包括包括第一盘表面和第二盘表面的多个盘表面。磁盘驱动器还包括多个磁头，包括在第一磁盘表面上致动的第一磁头和在第二磁盘表面上致动的第二磁头以及靠近磁盘表面的外径的斜面。测量第一间隔，同时朝向斜坡移动第一头，直到第一头接触斜坡，并且在将第二头朝向斜坡移动时测量第二间隔，直到第二头接触斜坡。

35. 发明授权

US09064504B1 Electronic system with media recovery mechanism and method of operation thereof 有权
标题翻译：具有介质回收机构的电子系统及其操作方法
公开(公告)号：US09064504B1
公开(公告)日：2015-06-23
申请号：US14260641
申请日：2014-04-24
申请人： Western Digital Technologies, Inc.
发明人： Anthony P. Sannino , William B. Boyle , Bernhard Hiller , Jih-Ping Peng
IPC分类号： G11B21/02 , G11B5/02 , G11B21/08 , G11B5/60
CPC分类号： G11B5/02 , G11B5/455 , G11B5/6005 , G11B5/6011 , G11B5/6064 , G11B5/6076 , G11B21/08 , G11B2005/0021
摘要： An apparatus includes: a media; a head over the media; and control circuitry, coupled to the heads, configured to: select an operational head from the heads based on margin data collected under a lube waterfall condition, and perform an access to the media with the operational head.
摘要翻译：一种装置包括：媒体; 媒体头以及耦合到所述头部的控制电路，被配置为：基于在润滑瀑布状态下收集的余量数据从所述头部选择操作头部，并且使用所述操作头执行对所述介质的访问。

36. 发明授权

US09053723B2 Magnetic recording head having quilted-type coating 有权
标题翻译：具有绗缝型涂层的磁记录头
公开(公告)号：US09053723B2
公开(公告)日：2015-06-09
申请号：US14334518
申请日：2014-07-17
申请人： International Business Machines Corporation
发明人： Robert G. Biskeborn , Calvin S. Lo
IPC分类号： G11B5/008 , G11B5/187 , G11B5/29 , G11B5/48 , G11B5/31 , G11B21/02
CPC分类号： G11B5/4893 , G11B5/00821 , G11B5/00826 , G11B5/3106 , G11B21/02 , Y10T428/11
摘要： A module according to one embodiment includes a plurality of transducers; a tape bearing surface having a transducer region aligned with the transducers in a tape travel direction, and outer regions flanking the transducer region in a direction perpendicular to the tape travel direction; a first coating on the transducer region of the tape bearing surface; and a second coating on at least one of the outer regions of the tape bearing surface, the second coating being different than the first coating.
摘要翻译：根据一个实施例的模块包括多个换能器; 具有换能器区域的磁带承载表面，其具有沿磁带行进方向与换能器对准的区域，以及在与磁带行进方向垂直的方向上的换能器区域侧面的外部区域; 在带承载表面的换能器区域上的第一涂层; 以及在所述带承载表面的至少一个外部区域上的第二涂层，所述第二涂层不同于所述第一涂层。

37. 发明授权

US09047901B1 Disk drive measuring spiral track error by measuring a slope of a spiral track across a disk radius 有权
标题翻译：磁盘驱动器通过测量磁盘半径上的螺旋轨道的斜率来测量螺旋轨迹误差
公开(公告)号：US09047901B1
公开(公告)日：2015-06-02
申请号：US13903197
申请日：2013-05-28
申请人： Western Digital Technologies, Inc.
发明人： Jianbin Nie , Edgar D. Sheh , Siri S. Weerasooriya
IPC分类号： G11B5/596 , G11B21/02
CPC分类号： G11B5/59661
摘要： A disk drive is disclosed comprising a disk comprising at least one spiral track, a head, and an actuator operable to actuate the head over the disk. A slope of the spiral track is measured at a plurality of radial locations across the disk, and a spiral track error at each radial location is generated based on a difference between the measured slope and a target slope. The head is actuated over the disk based on the spiral track and the spiral track error.
摘要翻译：公开了一种磁盘驱动器，其包括盘，该盘包括至少一个螺旋形轨道，头部和可操作以致动头部在盘上的致动器。在跨越盘的多个径向位置处测量螺旋轨道的斜率，并且基于所测量的斜率与目标斜率之间的差异来生成每个径向位置处的螺旋轨道误差。基于螺旋轨道和螺旋轨道误差，磁头在盘上被致动。

38. 发明授权

US09036289B2 Magnetic storage medium comprised of magnetic nanoparticles contained within nanotubes 有权
标题翻译：包含在纳米管内的磁性纳米颗粒的磁性存储介质
公开(公告)号：US09036289B2
公开(公告)日：2015-05-19
申请号：US14449786
申请日：2014-08-01
申请人： Sigma Pro Ltd. LLC
发明人： Tyson York Winarski
IPC分类号： G11B5/82 , G11B5/55 , B82Y10/00 , G11B5/65 , G11B5/706 , G11B5/74 , G11B5/78 , G11B5/708 , G11B21/02
CPC分类号： G11B5/17 , B82Y10/00 , G11B5/1278 , G11B5/65 , G11B5/706 , G11B5/746 , G11B5/78 , G11B5/82 , Y10S977/943 , Y10T29/49
摘要： A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within nanotubes (e.g., carbon nanotubes).
摘要翻译：磁性存储介质由包封在纳米管（例如碳纳米管）内的磁性纳米颗粒形成。

39. 发明授权

US09030783B1 Phase detection of spin torque oscillator reader excited through parametric excitation 有权
标题翻译：通过参数激励激发自旋扭矩振荡器读取器的相位检测
公开(公告)号：US09030783B1
公开(公告)日：2015-05-12
申请号：US14174084
申请日：2014-02-06
申请人： HGST Netherlands B.V.
发明人： Patrick M. Braganca , Samir Y. Garzon , Bruce A. Gurney , Keyu Pi , Rehan A. Zakai , Jian Zhu
IPC分类号： G11B5/39 , G11B21/02
CPC分类号： G11B5/3906 , H01L43/08
摘要： The embodiments disclosed generally relate to a read device in a magnetic recording head. The read device uses parametric excitation to injection lock the STO to an external AC signal with a frequency that is two times the resonance frequency, or more. The field from the media acting on the STO causes a change in the phase between the STO output and the external locking signal, which can be monitored using a phase detection circuit. The injection locking improves the STO signal to noise ratio and simplifies the detection circuit.
摘要翻译：所公开的实施例通常涉及磁记录头中的读取装置。读取装置使用参数激励将STO注入到具有两倍于谐振频率或更高频率的外部AC信号。来自介质作用在STO上的场导致STO输出和外部锁定信号之间的相位发生变化，这可以使用相位检测电路进行监视。注入锁定提高了STO信噪比，简化了检测电路。

40. 发明授权

US09025272B1 Shock protection for electro-mechanical devices of host devices employing inertial navigation systems 有权
标题翻译：使用惯性导航系统的主机装置的机电装置的冲击保护
公开(公告)号：US09025272B1
公开(公告)日：2015-05-05
申请号：US11429421
申请日：2006-05-05
申请人： Benjamin M. Chang
发明人： Benjamin M. Chang
IPC分类号： G11B21/02 , G11B21/12
CPC分类号： G11B21/12 , G11B5/5582 , G11B5/59694
摘要： A shock protected electronic device comprising a position receiver, an electromechanical device, a position process, and a protect process. The position receiver generates at least one position signal. The motion sensor generates at least one motion signal. The electromechanical device operates in a normal mode and a protect mode. The position process generates position data indicative of a position of the shock protected electronic device based on at least one of the position signal and the at least one motion signal. The protect process generates a protect signal based on the at least one motion signal. The electromechanical device enters the protect mode when the protect process generates the protect signal.
摘要翻译：一种防震电子设备，包括位置接收器，机电装置，位置处理和保护过程。位置接收器产生至少一个位置信号。运动传感器产生至少一个运动信号。机电装置在正常模式和保护模式下工作。所述位置处理基于所述位置信号和所述至少一个运动信号中的至少一个产生指示所述防震电子设备的位置的位置数据。保护过程基于至少一个运动信号产生保护信号。当保护过程产生保护信号时，机电设备进入保护模式。

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