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91. 发明授权

US09099127B1 Dual magnetic sensor for multi-input magnetic recording 有权
标题翻译：双磁传感器，用于多输入磁记录
公开(公告)号：US09099127B1
公开(公告)日：2015-08-04
申请号：US14292749
申请日：2014-05-30
申请人： HGST Netherlands B. V.
发明人： Taku Shintani , Yohji Maruyama , Kouichi Nishioka , Masafumi Mochizuki
IPC分类号： G11B5/39 , G11B5/02
CPC分类号： G11B5/3945 , G11B5/02 , G11B5/265 , G11B5/3163 , G11B5/3954 , G11B5/3974 , G11B5/4886
摘要： A magnetic read head and associated circuitry for reducing side track noise and decreasing read width, thereby providing increased data density. The magnetic read head includes first and second sensor elements that are aligned with one another in a data track direction, with the first sensor element being wider than the second sensor element. Electrical circuitry is connected with the read head in such a manner as to read a first signal from the first sensor element and a second signal from a second sensor element. Because the second sensor element is wider than the first sensor element, it will read more side signal noise from adjacent data tracks than will the second sensor element. The circuitry connected with the first and second sensor element detects and distinguishes the side signal noise and separates it out from the data signal, based sensor width difference and location difference.
摘要翻译：磁读头和相关电路，用于减少侧轨噪声和减小读宽，从而提高数据密度。磁读头包括在数据轨道方向上彼此对准的第一和第二传感器元件，其中第一传感器元件比第二传感器元件宽。电路与读头连接，以便从第一传感器元件读取第一信号和从第二传感器元件读取第二信号。由于第二传感器元件比第一传感器元件更宽，因此它将从第二传感器元件读出相邻数据轨道的更多侧信号噪声。与第一和第二传感器元件连接的电路检测和区分侧信号噪声，并根据传感器宽度差和位置差将其与数据信号分离。

92. 发明授权

US09064539B1 Systems and methods for timing control in a data processing system 有权
标题翻译：数据处理系统中时序控制的系统和方法
公开(公告)号：US09064539B1
公开(公告)日：2015-06-23
申请号：US14505260
申请日：2014-10-02
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Scott M. O'Brien , Jason P. Brenden , Cameron C. Rabe , Peter J. Windler , Joseph D. Stenger , David W. Kelly
IPC分类号： G11B5/09 , G11B5/02 , G11B20/10
CPC分类号： G11B20/10222
摘要： The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for synchronizing operations in a data storage system.
摘要翻译：本发明涉及用于数据处理的系统和方法，更具体地涉及用于在数据存储系统中同步操作的系统和方法。

93. 发明授权

US09053716B1 Spot size converter with a plurality of branches for HAMR heads 有权
标题翻译：具有用于HAMR头的多个分支的点尺寸转换器
公开(公告)号：US09053716B1
公开(公告)日：2015-06-09
申请号：US14271743
申请日：2014-05-07
申请人： HGST Netherlands B.V.
发明人： Takuya Matsumoto , Shen Ren , Barry C. Stipe
IPC分类号： G11B11/00 , G11B5/31 , G11B5/02
CPC分类号： G11B5/314 , G11B5/02 , G11B5/6088 , G11B2005/0021
摘要： Embodiments disclosed herein generally relate to a magnetic write head including a media facing surface and a surface opposite the media facing surface. The magnetic write head also includes a SSC having a first end extending to the surface opposite the media facing surface. The first end of the SSC has at least two tips. The multiple-tipped first end of the SSC is configured to receive a laser beam and the laser beam coupling efficiency is improved by having the multiple-tipped first end.
摘要翻译：本文公开的实施例通常涉及包括介质面向表面和与介质相对表面相对的表面的磁性写入头。磁写头还包括SSC，其具有延伸到与介质相对表面相对的表面的第一端。 SSC的第一端至少有两个提示。 SSC的多头第一端被配置为接收激光束，并且通过具有多尖端的第一端来提高激光束耦合效率。

94. 发明授权

US09047917B1 Disk drive slider with sense amplifier for coupling to a preamp through a supply/bias line and a read signal line 有权
标题翻译：具有读出放大器的磁盘驱动器滑块，用于通过电源/偏置线和读取信号线耦合到前置放大器
公开(公告)号：US09047917B1
公开(公告)日：2015-06-02
申请号：US14090873
申请日：2013-11-26
申请人： Western Digital Technologies, Inc.
发明人： Dennis W. Hogg
IPC分类号： G11B5/09 , G11B20/10 , G11B5/012 , G11B5/02
CPC分类号： G11B5/455 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/4853 , G11B5/5526 , G11B5/58 , G11B20/10018 , G11B20/10027
摘要： A disk drive slider is disclosed comprising a first read element for generating a first read signal, and a first sense amplifier comprising a first input terminal coupled to the first read element, a first output terminal coupled to a first output line, and a first supply terminal coupled to a supply line. The first sense amplifier is for amplifying the first read signal to generate a first amplified read signal, the first output line is for transmitting the first amplified read signal to a preamp, and the supply line is for coupling to the preamp in order to supply power to the first sense amplifier and supply a first bias to the first read element.
摘要翻译：公开了一种磁盘驱动器滑块，其包括用于产生第一读取信号的第一读取元件，以及第一读出放大器，包括耦合到第一读取元件的第一输入端子，耦合到第一输出线路的第一输出端子和第一电源端子耦合到电源线。第一读出放大器用于放大第一读取信号以产生第一放大的读取信号，第一输出线用于将第一放大的读取信号传输到前置放大器，并且电源线用于耦合到前置放大器以便供电到第一读出放大器，并向第一读取元件提供第一偏置。

95. 发明授权

US09042047B1 Mitigating write faults arising from disturbed lubrication events 有权
标题翻译：缓解因扰动的润滑事件引起的写入故障
公开(公告)号：US09042047B1
公开(公告)日：2015-05-26
申请号：US14506315
申请日：2014-10-03
申请人： Seagate Technology LLC
发明人： Mark Gerald Dubé
IPC分类号： G11B5/02 , G11B5/012
CPC分类号： G11B5/012 , G11B5/59694 , G11B5/6029 , G11B20/1883
摘要： Apparatus and method for detecting and compensating for lubrication disturbance (lube disturb) events on a rotatable data recording medium. In some embodiments, a lube disturb event is detected responsive to displacement of a data transducer away from a first memory location on a rotating data recording medium during a write operation to write data thereto. The lube disturb event arises responsive to a transfer of accumulated contamination from a data transducer to a lubrication layer on the rotating data recording medium and a smearing of the transferred accumulated contamination along the first memory location. The write data are stored to a different, second memory location instead of to the first memory location responsive to the detected lube disturb event.
摘要翻译：用于检测和补偿可旋转数据记录介质上的润滑干扰（润滑油干扰）事件的装置和方法。在一些实施例中，响应于在写入操作期间数据换能器远离旋转数据记录介质上的第一存储器位置的位移来检测润滑油干扰事件以向其写入数据。润滑油扰乱事件响应于从数据传感器到旋转数据记录介质上的润滑层的累积污染物的转移以及沿着第一存储器位置的转移的累积污染物的污染。写入数据被存储到不同的第二存储器位置，而不是响应于检测到的润滑油扰动事件而存储到第一存储器位置。

96. 发明申请

US20150138663A1 MAGNETIC RECORDING DISK DRIVE WITH WRITE DRIVER TO WRITE HEAD TRANSMISSION LINE WITH MULTIPLE SEGMENTS HAVING DIFFERENT NUMBERS OF CONDUCTIVE TRACES 有权
标题翻译：具有写入驱动器的磁性记录盘驱动器，具有多个带导通轨迹数量的多个段的写头传输线
公开(公告)号：US20150138663A1
公开(公告)日：2015-05-21
申请号：US14082340
申请日：2013-11-18
申请人： HGST Netherlands B.V.
发明人： John Thomas Contreras , Nobumasa Nishiyama , Eiji Soga , Kazuhiro Nagaoka , Rehan Zakai
IPC分类号： G11B5/02
CPC分类号： G11B5/484 , G11B5/4846 , G11B5/4853 , G11B5/486 , H05K1/0228 , H05K1/0245 , H05K1/025 , H05K1/0265 , H05K1/056 , H05K2201/09236 , H05K2201/09509 , H05K2201/09554 , H05K2201/09627 , H05K2203/0323
摘要： A multiple-segment transmission line in a hard disk drive enables a wider optimization range of the slope, duration and amplitude of the transmission line overshoot (TLO) wave shape. There is a first segment with two traces for connection to the write driver circuitry, an end segment with two traces for connection to the write head and at least two intermediate segments. The number of traces in a segment is different from the number of traces in the segments to which the segment is immediately connected. There is an even number of traces in each segment and the traces in each segment are interleaved. The number of segments and the number of traces in each segment can be selected to achieve the desired impedance levels for the different segments to achieve the desired wave shape for the TLO. All of the traces on the transmission line are preferably coplanar.
摘要翻译：硬盘驱动器中的多段传输线能够实现传输线过冲（TLO）波形的斜率，持续时间和振幅的较宽优化范围。存在具有用于连接到写入驱动器电路的两个迹线的第一段，具有用于连接到写入头和至少两个中间段的两条迹线的端段。段中的轨迹数不同于段立即连接到的段中的轨迹数。在每个段中存在偶数个迹线，并且每个段中的迹线被交织。可以选择段的数量和每个段中的迹线数以实现不同段的期望阻抗水平以实现TLO的期望波形。传输线上的所有迹线最好是共面的。

97. 发明授权

US09030772B2 Variable data density for data storage 有权
标题翻译：用于数据存储的可变数据密度
公开(公告)号：US09030772B2
公开(公告)日：2015-05-12
申请号：US13537006
申请日：2012-06-28
申请人： Tae Young Kim
发明人： Tae Young Kim
IPC分类号： G11B5/02 , G11B27/36 , G11B5/09 , G11B27/30
CPC分类号： G11B27/36 , G11B5/09 , G11B27/3027 , G11B2220/2516
摘要： Disclosed herein are methods and apparatuses that provide for variable data density on a disc data storage medium, where the variable data density may have a circumferential definition and a radial definition. In some examples, devices and methods may include measuring a read or write performance attribute on a disc data storage medium and selectively setting a data density rate that may vary in a circumferential direction for the disc data storage medium based on the read or write performance attribute. In other examples, apparatuses can include a data storage device having a disc data storage medium and a controller configured to measure a performance attribute of the disc data storage medium and to selectively set different Bits Per Inch (BPI) for data storage within different areas of the disc.
摘要翻译：这里公开了在盘数据存储介质上提供可变数据密度的方法和装置，其中可变数据密度可具有周向定义和径向定义。在一些示例中，设备和方法可以包括测量盘数据存储介质上的读或写性能属性，并且基于读/写性能属性选择性地设置可在盘数据存储介质的圆周方向上变化的数据密度率。在其他示例中，设备可以包括具有盘数据存储介质的数据存储设备和被配置为测量盘数据存储介质的性能属性的控制器，并且选择性地设置用于在不同区域内的数据存储的不同位每英寸（BPI）光盘。

98. 发明授权

US08995076B1 Head-medium contact detection using electromagnetic attraction 有权
标题翻译：使用电磁吸引头头介质接触检测
公开(公告)号：US08995076B1
公开(公告)日：2015-03-31
申请号：US14257266
申请日：2014-04-21
申请人： Seagate Technology LLC
发明人： Daniel W. Olson , David J. Ellison , Michael Thomas Johnson
IPC分类号： G11B5/02 , G11B5/596
CPC分类号： G11B5/596 , G11B5/607 , G11B5/6076
摘要： An apparatus of the present disclosure generally includes a recording head, circuitry, a thermal sensor, and a detector. The recording head has an electromagnetic attraction to a recording medium. The circuitry is configured to oscillate the electromagnetic attraction between the recording head and the recording medium. The oscillating electromagnetic attraction produces a corresponding oscillating clearance between the recording head and the recording medium. The thermal sensor, located in or near the recording head, senses an oscillating temperature that is induced by the oscillating clearance and produces a sensor signal that is representative of the sensed temperature. The detector is coupled to the thermal sensor and is configured to detect at least one of head-medium contact and clearance using the sensor signal and the electromagnetic attraction.
摘要翻译：本公开的装置通常包括记录头，电路，热传感器和检测器。记录头对记录介质具有电磁吸引力。电路被配置为在记录头和记录介质之间振荡电磁吸引力。振荡电磁吸引力在记录头和记录介质之间产生相应的振荡间隙。位于记录头或附近的热传感器感测由振荡间隙引起的振荡温度，并产生代表感测温度的传感器信号。检测器耦合到热传感器并且被配置为使用传感器信号和电磁吸引力来检测头 - 介质接触和间隙中的至少一个。

99. 发明授权

US08995074B1 Read channel optimization using evolutionary algorithms 有权
标题翻译：使用进化算法读取信道优化
公开(公告)号：US08995074B1
公开(公告)日：2015-03-31
申请号：US13409840
申请日：2012-03-01
申请人： Seo-How Low
发明人： Seo-How Low
IPC分类号： G11B5/09 , G11B5/02
CPC分类号： G11B5/02 , G11B5/09 , G11B20/10009 , G11B20/10481 , G11B20/10509
摘要： The present disclosure includes systems and techniques relating to the use of evolutionary algorithms for tuning the performance of read channels. Instructions encoded on a medium are performed by processor cause a storage device to perform operations including obtaining values corresponding to operating parameters of a read channel of the storage device, generating one or more output parameters corresponding to use of the values with the read channel, selecting a proper subset of the values based on the one or more output parameters and a cost function, creating a new generation of the values corresponding to the operating parameters based on the proper subset and repeating the generating and the selecting using the new generation of the values until a target is achieved, and outputting two or more of the values of the proper subset of a last generation, when the target is achieved to configure the read channel.
摘要翻译：本公开包括与用于调整读取通道的性能的进化算法的使用有关的系统和技术。在介质上编码的指令由处理器执行，使得存储设备执行操作，包括获得对应于存储设备的读取通道的操作参数的值，生成与使用读取通道的值对应的一个或多个输出参数，选择基于一个或多个输出参数和成本函数的值的适当子集，基于适当子集创建对应于运行参数的值的新一代，并使用新一代的值重复生成和选择直到实现目标，并且当实现目标以配置读取通道时，输出最后一代的正确子集的两个或多个值。

100. 发明授权

US08988813B2 Microwave-assisted magnetic recording and reproducing device 有权
标题翻译：微波辅助磁记录和再现装置
公开(公告)号：US08988813B2
公开(公告)日：2015-03-24
申请号：US14281253
申请日：2014-05-19
申请人： TDK Corporation
发明人： Eriko Ajioka
IPC分类号： G11B5/02 , G11B5/48 , G11B5/012 , G11B5/00
CPC分类号： G11B5/012 , G11B5/02 , G11B2005/0024
摘要： A microwave-assisted magnetic recording and reproducing apparatus includes a microwave power generator, a microwave magnetic field generating element, and a thin film magnetic head that may record a data signal in high density in a magnetic recording medium that has a high coercivity. A magnetic recording medium, a magnetic head that records information in the magnetic recording medium, a microwave power generator provided independently of the magnetic head, and a differential signal supply unit used to supply microwave power generated by the microwave power generator as differential signals to a microwave magnetic field generating element provided at the magnetic head are included.
摘要翻译：微波辅助磁记录和再现装置包括微波发生器，微波磁场产生元件和薄膜磁头，其可以在具有高矫顽力的磁记录介质中高密度地记录数据信号。一种磁记录介质，在磁记录介质中记录信息的磁头，独立于磁头设置的微波发生器和用于将由微波发生器产生的微波功率作为差分信号提供给微波信号的差分信号提供单元包括设在磁头上的微波磁场产生元件。

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