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71. 发明授权

US08687943B2 Readout apparatus, readout method, and recording method 有权
标题翻译：读出装置，读出方法和记录方法
公开(公告)号：US08687943B2
公开(公告)日：2014-04-01
申请号：US13213837
申请日：2011-08-19
申请人： Wataru Ikeda
发明人： Wataru Ikeda
IPC分类号： H04N9/80 , H04N5/89 , G06F3/06 , G06F13/00 , G11B5/596 , G11B21/02
CPC分类号： G11B20/10 , G06F9/445 , G06Q30/0633 , G11B20/12 , G11B27/002 , G11B27/105 , G11B27/329 , G11B2220/213 , G11B2220/2541 , H04N5/85 , H04N5/91 , H04N9/8205
摘要： The application manager 37 conducts “application signaling” when a first disc is replaced with a second disc. At this point, an application is continued if it is written in an application management table assigned to a Title played last on a first disc and also written in an application management table assigned to a Title to be played first on a second disc. On the other hand, an application is ended is it is written in the application management table assigned to the Title played last on the first disc but not written in the application management table assigned to the Title to be played first on the second disc.
摘要翻译：当第一盘被第二盘替换时，应用管理器37进行“应用信令”。此时，如果应用程序被写入分配给在第一盘上最后播放的标题的应用管理表中，并且还写入分配给要在第二盘上首先播放的标题的应用管理表中。另一方面，应用程序结束是写在分配给在第一盘上最后播放的标题的应用程序管理表中，但未写入分配给要在第二盘上首先播放的标题的应用程序管理表中。

72. 发明授权

US08687313B2 Disk drive mapping out data tracks to avoid thermal asperities 有权
标题翻译：磁盘驱动器映射数据轨道以避免热凹凸
公开(公告)号：US08687313B2
公开(公告)日：2014-04-01
申请号：US13167559
申请日：2011-06-23
申请人： Gomez Sam Vasanthan Selvaraj
发明人： Gomez Sam Vasanthan Selvaraj
IPC分类号： G11B21/02 , G11B5/596
CPC分类号： G11B5/6029 , G11B2020/1241 , G11B2020/1298 , G11B2220/2516
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of data tracks, wherein the head comprises a write element and a read element. An asperity in a target data track is detected, and a range of data tracks proximate the target data track is mapped out, wherein the range of data tracks spans at least twice a radial offset between the read element and the write element at the radial location of the target data track.
摘要翻译：公开了一种磁盘驱动器，包括在包括多个数据磁道的磁盘上启动的磁头，其中磁头包括写入元件和读取元件。检测目标数据轨道中的粗糙度，并且映射靠近目标数据轨道的数据轨迹的范围，其中数据轨迹的范围至少在径向位置处的读取元件和写入元件之间的径向偏移的两倍的目标数据轨道。

73. 发明申请

US20140063645A1 MAGNETIC RECORDING HEAD HAVING PROTECTED READER SENSORS AND NEAR ZERO RECESSION WRITER POLES 有权
标题翻译：带有保护读取器传感器的磁记录头和零点记录写波导
公开(公告)号：US20140063645A1
公开(公告)日：2014-03-06
申请号：US13601068
申请日：2012-08-31
申请人： Robert G. Biskeborn , W. Stanley Czarnecki , Philipp Herget , Calvin S. Lo
发明人： Robert G. Biskeborn , W. Stanley Czarnecki , Philipp Herget , Calvin S. Lo
IPC分类号： G11B5/127 , G11B21/02 , G11B5/84 , G11B5/60
CPC分类号： G11B5/255 , G11B5/00813 , G11B5/00821 , G11B5/187 , G11B5/29 , G11B5/295 , G11B5/3106 , G11B5/40 , G11B5/4893 , G11B5/84 , Y10T29/49021
摘要： A magnetic head according to one embodiment includes a module, the module having first and second transducers of different transducer types positioned towards a media facing side of the module, wherein the different transducer types are selected from a group consisting of data reader transducers, servo reader transducers, write transducers, piggyback read-write transducers and merged read-write transducers; a first protection structure for protecting the first transducer; and wherein the second transducer has either no protection or is protected by a second protection structure that is different than the first protection structure.
摘要翻译：根据一个实施例的磁头包括模块，所述模块具有朝向所述模块的面向介质侧的不同换能器类型的第一和第二换能器，其中所述不同的换能器类型选自数据读取器换能器，伺服读取器传感器，写入传感器，背负式读写传感器和合并的读写传感器; 用于保护第一换能器的第一保护结构; 并且其中所述第二换能器不具有保护或被不同于所述第一保护结构的第二保护结构所保护。

74. 发明申请

US20140022666A1 VARIABLE STOPWRITE THRESHOLD WITH VARIABLE SMOOTHING FACTOR 失效
标题翻译：具有可变平滑因子的可变停止门限
公开(公告)号：US20140022666A1
公开(公告)日：2014-01-23
申请号：US13554966
申请日：2012-07-20
申请人： Nhan X. Bui , Kevin B. Judd , Tomoko Taketomi
发明人： Nhan X. Bui , Kevin B. Judd , Tomoko Taketomi
IPC分类号： G11B21/02
CPC分类号： G11B5/00817 , G11B5/0083 , G11B5/09 , G11B5/584 , G11B20/10388 , G11B27/36
摘要： In one embodiment, a data storage system includes a head; a drive mechanism for passing a medium over the head; a controller electrically coupled to the head; logic encoded in or available to the controller for: periodically determining a stopwrite threshold based on a standard deviation or a variance at a current position error signal sample, wherein a smoothing factor applied to a subsequent calculation of the standard deviation or variance is altered based at least in part on a current magnitude of the standard deviation or the variance; determining whether the current position error signal sample exceeds the stopwrite threshold; disabling writing when the current position error signal sample exceeds the stopwrite threshold; and enabling writing when the current position error signal sample does not exceed the stopwrite threshold. Other systems, methods, and computer program products are described according to more embodiments.
摘要翻译：在一个实施例中，数据存储系统包括头部; 用于使介质通过头部的驱动机构; 控制器电耦合到头部; 编码在或可用于控制器的逻辑，用于：基于当前位置误差信号样本的标准偏差或方差周期性地确定停止写入阈值，其中应用于随后的标准偏差或方差的计算的平滑因子基于至少部分地基于当前的标准偏差或方差的大小; 确定当前位置误差信号样本是否超过限制写入阈值; 当当前位置错误信号样本超过限制写入阈值时禁止写入; 并且当当前位置误差信号采样不超过限制写入阈值时使能写入。根据更多实施例描述其它系统，方法和计算机程序产品。

75. 发明申请

US20140016225A1 MAGNETIC MEDIA ACCESS HEAD WITH METAL COATING 有权
标题翻译：磁性介质接触金属涂层头
公开(公告)号：US20140016225A1
公开(公告)日：2014-01-16
申请号：US13550144
申请日：2012-07-16
申请人： Richard Henry Dee
发明人： Richard Henry Dee
IPC分类号： G11B5/147 , G11B21/02
CPC分类号： G11B5/255 , G11B5/1475 , G11B5/3106 , G11B5/40 , G11B5/84 , Y10T29/49032
摘要： Embodiments disclosed herein provide magnetic media access heads with metal coatings. In a particular embodiment, a magnetic media head for accessing magnetic media comprises a base substrate configured to support a magnetic head layer. The magnetic head layer is formed on the base substrate and configured to magnetically access the magnetic media. A metallic layer formed over the magnetic head layer and disposed between the magnetic head layer and the magnetic media when the magnetic media is positioned for access by the magnetic head layer.
摘要翻译：本文公开的实施例提供具有金属涂层的磁性介质进入头。在特定实施例中，用于访问磁性介质的磁性介质头包括构造成支撑磁头层的基底基板。磁头层形成在基底基板上，并被配置为磁性地访问磁性介质。当磁性介质定位成由磁头层进入时，形成在磁头层之上并设置在磁头层和磁介质之间的金属层。

76. 发明授权

US08630057B2 In-situ contact potential measurement in hard-disk drives 有权
标题翻译：硬盘驱动器中的原位接触电位测量
公开(公告)号：US08630057B2
公开(公告)日：2014-01-14
申请号：US13495513
申请日：2012-06-13
申请人： Aravind N. Murthy , Remmelt Pit , Karl Arthur Flechsig
发明人： Aravind N. Murthy , Remmelt Pit , Karl Arthur Flechsig
IPC分类号： G11B21/02 , G11B27/36
CPC分类号： G11B5/607 , G11B5/6076
摘要： Approaches are provided for a hard-disk drive (HDD) and a method for measuring the contact potential between head and disk interfaces within a hard-disk drive. In one example, a voltage bias is applied to a head slider at discrete increments, and the touchdown power is determined at each increment. The voltage bias at which the TDP maximizes equals the inverse polarity of the inherent contact potential between the head slider and disk, and this value may be used to apply a voltage that neutralizes the contact potential.
摘要翻译：为硬盘驱动器（HDD）提供了方法，以及用于测量硬盘驱动器内磁头和磁盘接口之间的接触电位的方法。在一个示例中，电压偏置以离散增量施加到磁头滑块，并且在每个增量处确定触地功率。 TDP最大化的电压偏置等于磁头滑块和磁盘之间的固有接触电位的反极性，并且该值可用于施加中和接触电位的电压。

77. 发明申请

US20130342929A1 METHOD OF COMPENSATING FOR REPEATABLE RUNOUT ERROR 有权
标题翻译：补偿可重复运行错误的方法
公开(公告)号：US20130342929A1
公开(公告)日：2013-12-26
申请号：US13529309
申请日：2012-06-21
申请人： Jonathan D. Coker , Jeffrey L. Furlong , David R. Hall , David J. Stanek
发明人： Jonathan D. Coker , Jeffrey L. Furlong , David R. Hall , David J. Stanek
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B5/59627 , G11B20/10009 , G11B20/10527
摘要： A method of correcting repeatable run out (RRO) errors for a HDD in which RRO data is instead stored in consolidated form within the reserved area of the disk, instead of storing RRO data in the servo patterns for each HDD track or sector. RRO data is preferably stored in the reserved area of a hard disk drive in compressed form. The compressed RRO data is subsequently read into DRAM in compressed form and then decompressed for use. Predictive techniques determine what compressed RRO data is needed for upcoming read/write operations.
摘要翻译：一种用于校正HDD的可重复耗尽（RRO）错误的方法，其中RRO数据以固定形式存储在盘的保留区域内，而不是将RRO数据存储在每个HDD轨道或扇区的伺服模式中。 RRO数据优选地以压缩形式存储在硬盘驱动器的保留区域中。压缩的RRO数据随后以压缩形式读入DRAM，然后解压缩使用。预测技术确定即将到来的读/写操作需要什么压缩的RRO数据。

78. 发明授权

US08614859B2 Stopping method for a spindle motor and related device 有权
标题翻译：主轴电机及相关装置的停止方法
公开(公告)号：US08614859B2
公开(公告)日：2013-12-24
申请号：US12751740
申请日：2010-03-31
申请人： Ezio Galbiati , Frederic Pascal Bonvin
发明人： Ezio Galbiati , Frederic Pascal Bonvin
IPC分类号： G11B21/02
CPC分类号： G11B19/2063
摘要： A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor.
摘要翻译：一种在没有外部电源电压的情况下停止主轴电机的方法和电路，其中主轴电机被构造成移动设置有由音圈电机移动的至少一个读/写头的硬盘，多个线圈。该方法包括整流主轴电动机的反电动势以产生制动电流，以至少一部分制动电流驱动音圈电动机，直到主轴电动机的速度变得低于预定的停止速度，并且在停放音圈马达的至少一个读写头，通过使主轴马达的线圈短路来停止主轴马达。

79. 发明申请

US20130335856A1 Dynamic Track Pitch Control for Shingled Magnetic Recording (SMR) 有权
标题翻译：用于带状磁记录（SMR）的动态轨道间距控制
公开(公告)号：US20130335856A1
公开(公告)日：2013-12-19
申请号：US13523657
申请日：2012-06-14
申请人： Hiroyasu Tanabe , Hideki Zaitsu , Kyo Akagi , Naoto Ito
发明人： Hiroyasu Tanabe , Hideki Zaitsu , Kyo Akagi , Naoto Ito
IPC分类号： G11B21/02 , G11B5/012
CPC分类号： G11B19/04 , G11B5/012 , G11B5/5565 , G11B5/59627 , G11B2005/0021
摘要： SMR disk drives are described that adjust track pitch or magnetic write width to compensate for external temperature effects. In one embodiment track pitch is increased when the media temperature increases. The temperature of magnetic media during write operations can be determined from the drives' temperature sensor. In other embodiments track pitch is adjusted based on the magnetic write width (MWW) which is determined from read-back testing of previously written data tracks. In an alternative embodiment, the width of the MWW is adjusted instead of the track pitch. The various factors that affect the MWW that can be used to increase or decrease the MWW, including write current characteristics and when available thermal-assistance parameters.
摘要翻译：描述了SMR磁盘驱动器，其调节磁道间距或磁写入宽度以补偿外部温度效应。在一个实施例中，当介质温度升高时，轨道间距增加。写入操作期间磁介质的温度可以由驱动器的温度传感器确定。在其他实施例中，基于从先前写入的数据轨道的回读测试确定的磁写入宽度（MWW）来调整轨道间距。在替代实施例中，调整MWW的宽度而不是轨道间距。影响MWW的各种因素可用于增加或减少MWW，包括写入电流特性和可用的热辅助参数。

80. 发明申请

US20130286501A1 METHODS AND SYSTEMS FOR MAGNETIC MEDIA SERVO WRITING 有权
标题翻译：磁介质伺服写入方法与系统
公开(公告)号：US20130286501A1
公开(公告)日：2013-10-31
申请号：US13795668
申请日：2013-03-12
申请人： IMATION CORP.
发明人： Douglas W. Johnson , Roni J. Dornfeld , Stephen J. Rothermel
IPC分类号： G11B21/02
CPC分类号： G11B5/00813 , G11B5/584 , G11B21/02
摘要： A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.
摘要翻译：一种方法包括在磁介质中产生第一和第二磁场分量，第二磁场分量基本上与第一磁场分量相对。将图案写入磁介质，并通过读取图案产生信号。基于信号的不对称来控制第二磁场分量的大小。

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