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1. 发明授权

US5617289A Magnetic reinitialization of thin film magnetoresistive reproducing heads at the suspension level of media drive manufacturing 失效
标题翻译：在介质驱动器制造的悬挂级别的薄膜磁阻再现磁头的磁性重新初始化
公开(公告)号：US5617289A
公开(公告)日：1997-04-01
申请号：US463391
申请日：1995-06-05
申请人： Samir E. Abboud , Nickolas C. Apuzzo , Jeffrey B. Brown , Earl A. Cunningham , David M. Hannon , Raymond P. Mallette , Paul S. Tyler , Steven H. Voss , Albert J. Wallash
发明人： Samir E. Abboud , Nickolas C. Apuzzo , Jeffrey B. Brown , Earl A. Cunningham , David M. Hannon , Raymond P. Mallette , Paul S. Tyler , Steven H. Voss , Albert J. Wallash
IPC分类号： G11B5/00 , G11B5/39 , G11B5/465 , G11B5/48 , H01L43/12 , H01F13/00
CPC分类号： G11B5/3903 , G11B5/465 , G11B5/4886 , G11B2005/0008 , Y10T29/49034
摘要： The magnetic states of MR reproducing heads are reinitialized during media drive manufacturing by applying initializing magnetic fields to the transducers after they have been manufactured and incorporated into media drive assemblies.
摘要翻译：磁记录磁头的磁状态在介质驱动制造过程中被重新初始化，通过在传感器被制造并且被并入到介质驱动组件中之后对其进行初始化磁场。

2. 发明授权

US06552880B1 Disk drive comprising thermal asperity protection by reducing an electrical bias supplied to a magneto-resistive head 失效
标题翻译：磁盘驱动器通过减少提供给磁阻头的电偏压来包括热绝缘保护
公开(公告)号：US06552880B1
公开(公告)日：2003-04-22
申请号：US09773969
申请日：2001-01-31
申请人： Gary L. Dunbar , David M. Hannon , James Weispfenning , Jodie A. Christner , Timothy Bouwkamp
发明人： Gary L. Dunbar , David M. Hannon , James Weispfenning , Jodie A. Christner , Timothy Bouwkamp
IPC分类号： G11B5127
CPC分类号： G11B5/012 , G11B5/40 , G11B2005/0018
摘要： The present invention may be regarded as a disk drive with protection against damage due to a thermal asperity. The disk drive comprises a disk having a surface with an asperity, and a magneto-resistive head actuated radially over the surface of the disk for generating a read signal comprising a thermal asperity component caused by the magneto-resistive head contacting the asperity on the surface of the disk. A bias generator is provided for generating an electrical bias applied to the magneto-resistive head, and a thermal asperity detector detects the thermal asperity component in the read signal. When the thermal asperity component is detected, the electrical bias is reduced for a time interval, thereby protecting the magneto-resistive head.
摘要翻译：本发明可以被认为是具有防止由于热不均匀而损坏的盘驱动器。盘驱动器包括具有凹凸表面的盘，以及在盘的表面上径向地致动的磁阻头，用于产生读信号，该读信号包括由磁阻头与表面上的凹凸接触而引起的热凹凸分量的磁盘。提供偏置发生器用于产生施加到磁阻头的电偏压，并且热凹凸检测器检测读信号中的热凹凸分量。当检测到热凹凸分量时，电偏压一段时间减小，从而保护磁阻头。

3. 发明授权

US4823205A Capacitive sensor for head positioning in magnetic recording disk files 失效
标题翻译：用于头磁头定位在磁记录磁盘文件中的电容式传感器
公开(公告)号：US4823205A
公开(公告)日：1989-04-18
申请号：US153101
申请日：1988-02-08
申请人： David M. Hannon , Donald E. Horne
发明人： David M. Hannon , Donald E. Horne
IPC分类号： G11B5/596 , G11B21/10 , G11B13/00
CPC分类号： G11B21/106 , G11B5/596
摘要： A capacitive sensor for detecting capacitive contrast servo information on a disk in a data recording disk file includes a center-tapped inductor connected to a high frequency oscillator, a sensing probe formed on the back side of the slider and electrically coupled to one end of the inductor, and a dummy probe also formed on the back side of the slider and electrically connected to the other end of the inductor. The center-tapped inductor forms a primary coil of a transformer so that variations in capacitance sensed by the sensing probe provide a differential output signal in the inductor which is sensed by the transformer secondary coil. The probes, and their electrically conductive leads and terminal pads, are formed by thin film deposition techniques on the back side of the slider and are located with respect to the inductive read/write head so as to equally receive any noise generated by the read/write head. The dummy probe is spaced away from the air bearing surface of the slider so that the variation in capacitance due to the capacitive contrast pattern on the disk is received only by the sensing probe.
摘要翻译：一种用于检测数据记录盘文件中的盘上的电容对比度伺服信息的电容式传感器包括连接到高频振荡器的中心抽头电感器，形成在滑块的背面上的电感耦合器，电感器，以及也形成在滑动件的背面并电连接到电感器的另一端的虚拟探头。中心抽头电感器形成变压器的初级线圈，使得由感测探头感测的电容的变化在电感器中提供由变压器次级线圈感测到的差分输出信号。探针及其导电引线和端子焊盘通过薄片沉积技术在滑块的背面形成，并且相对于电感读/写头位于相同位置，以便均等地接收由读/ 写头虚拟探针与滑动器的空气支承表面间隔开，使得由于磁盘上的电容对比度图形引起的电容变化仅由感测探头接收。

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