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公开(公告)号：US09224419B1
公开(公告)日：2015-12-29
申请号：US14466083
申请日：2014-08-22
发明人： Zining Wu , Pantas Sutardja
CPC分类号： G11B20/10046 , G11B5/09 , G11B5/59611 , G11B5/59644 , G11B5/59688 , G11B20/10009
摘要： Systems, methods, and other embodiments associated with a detector that processes signals read from a storage device are described. According to one embodiment, the detector includes a signal estimator configured to generate an estimate of a control signal by determining characteristics of the control signal from a read signal. The read signal includes the data signal and the control signal embedded together. The signal estimator is configured to generate the estimate of the control signal as a function of the characteristics. The detector includes a cancellation unit configured to produce the data signal by cancelling the estimate of the control signal from the read signal.
摘要翻译： 描述与处理从存储装置读取的信号的检测器相关联的系统，方法和其它实施例。 根据一个实施例，检测器包括信号估计器，其被配置为通过从读取信号确定控制信号的特性来产生控制信号的估计。 读信号包括嵌入在一起的数据信号和控制信号。 信号估计器被配置为根据特性产生控制信号的估计。 该检测器包括：消除单元，被配置为通过从读取信号中消除控制信号的估计来产生数据信号。
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2.发明授权Disk drive detecting mini wedge by evaluating wedge ID of servo sector 有权通过评估伺服扇区的楔形ID来检测微型楔块的磁盘驱动器公开(公告)号：US09153263B1
公开(公告)日：2015-10-06
申请号：US14152737
申请日：2014-01-10
发明人： Michael Chang , Wei Guo , Russ A. Quisenberry , Guoxiao Guo
CPC分类号： G11B5/59633 , G11B5/59616 , G11B5/59644 , G11B2020/10916 , G11B2020/1267
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks defined by servo sectors forming a plurality of full wedges and a plurality of mini wedges. The wedge ID field of a servo sector forming one of the full wedges is offset from a beginning of a sync mark by a first offset, and the wedge ID field of a servo sector forming one of the mini wedges is offset from the beginning of the sync mark by a second offset equal to the first offset. A first servo sector is read from the disk to generate a read signal, the read signal is demodulated to detect the wedge ID of the first servo sector, and the detected wedge ID is evaluated to determine whether the first servo sector forms one of the mini wedges.
摘要翻译： 公开了一种磁盘驱动器，其包括在盘上致动的磁头，磁头包括由伺服扇区限定的多个磁道，形成多个完整的楔块和多个微型楔块。 形成整个楔块之一的伺服扇区的楔形ID字段从同步标记的开始偏移第一偏移，并且形成微型楔块之一的伺服扇区的楔形ID字段偏离 同步标记以等于第一个偏移量的第二个偏移量。 从盘读取第一伺服扇区以产生读取信号，解调读取信号以检测第一伺服扇区的楔形ID，并且评估检测到的楔ID，以确定第一伺服扇区是否形成微型 楔子
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公开(公告)号：US20150243322A1
公开(公告)日：2015-08-27
申请号：US14217833
申请日：2014-03-18
申请人： LSI Corporation
CPC分类号： G11B5/4886 , G06F17/30424 , G11B5/09 , G11B5/3958 , G11B5/3967 , G11B5/3977 , G11B5/4866 , G11B5/59616 , G11B5/59627 , G11B5/59644 , G11B20/10259
摘要： Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for processing servo data using two or more sensing heads.
摘要翻译： 用于数据处理的系统，方法，设备，电路，更具体地涉及使用两个或更多个感测头来处理伺服数据的系统和方法。
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公开(公告)号：US08681444B2
公开(公告)日：2014-03-25
申请号：US13491135
申请日：2012-06-07
申请人： Xun Zhang , Haitao Xia , Dahua Qin
发明人： Xun Zhang , Haitao Xia , Dahua Qin
CPC分类号： G11B5/59644 , G11B20/10268
摘要： The present inventions are related to systems and methods for transferring information to and from a storage medium, and more particularly to systems and methods for positioning a sensor in relation to a storage medium. For example, an apparatus for determining a sensor position is disclosed that includes a data stream processor operable to generate a number of data streams at different frequencies based on an input data stream, a number of servo preamble detectors each operable to process a different one of the data streams to detect a servo preamble, a selector operable to output one of the data streams in which the servo preamble was detected as a winning data stream, and a pattern detector operable to detect a pattern in the winning data stream.
摘要翻译： 本发明涉及用于将信息传送到存储介质和从存储介质传送信息的系统和方法，更具体地涉及用于相对于存储介质定位传感器的系统和方法。 例如，公开了一种用于确定传感器位置的装置，其包括可操作以基于输入数据流生成不同频率的多个数据流的数据流处理器，多个伺服前置码检测器，每个可操作以处理不同的 用于检测伺服前导码的数据流，可操作以输出其中检测到伺服前导码的数据流中的一个作为获胜数据流的选择器，以及用于检测获胜数据流中的模式的模式检测器。
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公开(公告)号：US20130329312A1
公开(公告)日：2013-12-12
申请号：US13491135
申请日：2012-06-07
申请人： Xun Zhang , Haitao Xia , Dahua Qin
发明人： Xun Zhang , Haitao Xia , Dahua Qin
IPC分类号： G11B5/09
CPC分类号： G11B5/59644 , G11B20/10268
摘要： The present inventions are related to systems and methods for transferring information to and from a storage medium, and more particularly to systems and methods for positioning a sensor in relation to a storage medium. For example, an apparatus for determining a sensor position is disclosed that includes a data stream processor operable to generate a number of data streams at different frequencies based on an input data stream, a number of servo preamble detectors each operable to process a different one of the data streams to detect a servo preamble, a selector operable to output one of the data streams in which the servo preamble was detected as a winning data stream, and a pattern detector operable to detect a pattern in the winning data stream.
摘要翻译： 本发明涉及用于将信息传送到存储介质和从存储介质传送信息的系统和方法，更具体地涉及用于相对于存储介质定位传感器的系统和方法。 例如，公开了一种用于确定传感器位置的装置，其包括可操作以基于输入数据流生成不同频率的多个数据流的数据流处理器，多个伺服前置码检测器，每个可操作以处理不同的 用于检测伺服前导码的数据流，可操作以输出其中检测到伺服前导码的数据流中的一个作为获胜数据流的选择器，以及用于检测获胜数据流中的模式的模式检测器。
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6.发明申请公开(公告)号：US20130321947A1
公开(公告)日：2013-12-05
申请号：US13485879
申请日：2012-05-31
申请人： Michael K. Grobis
发明人： Michael K. Grobis
IPC分类号： G11B21/02
CPC分类号： G11B5/09 , B82Y10/00 , G11B5/3977 , G11B5/4886 , G11B5/5578 , G11B5/59616 , G11B5/59644 , G11B5/746
摘要： A method for recording data to a magnetic media while simultaneously reading sync and or servo data with reduced noise from the write head affecting the reading of the sync and or servo data. The invention records data using a write head of a first slider and reads the sync and or servo data from a read head located on a different slider that is facing a different disk surface than the first slider. In this way, magnetic or thermal noise from the write head does not affect the reading of the sync and or servo data.
摘要翻译： 一种用于将数据记录到磁性介质上同时读取来自写入头的降低的噪声的同步和/或伺服数据影响同步和/或伺服数据的读取的方法。 本发明使用第一滑块的写入头记录数据，并从位于与第一滑块不同的盘表面的不同滑块上的读取头读取同步和/或伺服数据。 以这种方式，来自写入头的磁或热噪声不影响同步和/或伺服数据的读取。
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公开(公告)号：US08477442B2
公开(公告)日：2013-07-02
申请号：US12800300
申请日：2010-05-11
CPC分类号： G11B5/59688 , B82Y10/00 , G11B5/59644 , G11B5/59666 , G11B5/743
摘要： Pre-patterned discrete track media for self-servo writing are described. Embodiments include land and groove patterns for two or more Integrated Servo sequence fields for each servo sector in which one of the Integrated Servo sequence fields is aligned with the data track and a second sequence is offset by one-half of a track width. The lands and grooves between the Integrated Servo sequence fields are preferably the same width as those between the data tracks to facilitate planarization. Alternative embodiments include a sync feature for each servo sector formed by a selected groove and/or land pattern as a marker for the start of the servo fields. Alternative embodiments include a bootstrap zone with servo patterns that are readable when DC-magnetized. Described methods of self-servowriting include ways to adapt to eccentricity and non-circularity of pre-patterned discrete tracks with respect to the head paths.
摘要翻译： 描述了用于自伺服写入的预先构图的离散轨道介质。 实施例包括用于每个伺服扇区的两个或更多个集成伺服序列字段的平面和凹槽图案，其中集成伺服序列字段中的一个与数据轨道对准，并且第二序列偏移轨道宽度的一半。 集成伺服序列区域之间的焊盘和凹槽优选地与数据磁道之间的平面宽度相同，以便于平坦化。 替代实施例包括由所选择的槽和/或焊盘图案形成的每个伺服扇区的同步特征作为伺服字段开始的标记。 替代实施例包括具有伺服图案的自举区，其在DC磁化时是可读的。 自伺服驱动的描述方法包括适应相对于头部路径的预先构图的离散轨迹的偏心度和非圆度的方法。
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公开(公告)号：US20110279924A1
公开(公告)日：2011-11-17
申请号：US12800300
申请日：2010-05-11
CPC分类号： G11B5/59688 , B82Y10/00 , G11B5/59644 , G11B5/59666 , G11B5/743
摘要： Pre-patterned discrete track media for self-servo writing are described. Embodiments include land and groove patterns for two or more Integrated Servo sequence fields for each servo sector in which one of the Integrated Servo sequence fields is aligned with the data track and a second sequence is offset by one-half of a track width. The lands and grooves between the Integrated Servo sequence fields are preferably the same width as those between the data tracks to facilitate planarization. Alternative embodiments include a sync feature for each servo sector formed by a selected groove and/or land pattern as a marker for the start of the servo fields. Alternative embodiments include a bootstrap zone with servo patterns that are readable when DC-magnetized. Described methods of self-servowriting include ways to adapt to eccentricity and non-circularity of pre-patterned discrete tracks with respect to the head paths.
摘要翻译： 描述了用于自伺服写入的预先构图的离散轨道介质。 实施例包括用于每个伺服扇区的两个或更多个集成伺服序列字段的平面和凹槽图案，其中集成伺服序列字段中的一个与数据轨道对准，并且第二序列偏移轨道宽度的一半。 集成伺服序列区域之间的焊盘和凹槽优选地与数据磁道之间的平面宽度相同，以便于平坦化。 替代实施例包括由所选择的槽和/或焊盘图案形成的每个伺服扇区的同步特征作为伺服字段开始的标记。 替代实施例包括具有伺服图案的自举区，其在DC磁化时是可读的。 自伺服驱动的描述方法包括适应相对于头部路径的预先构图的离散轨迹的偏心度和非圆度的方法。
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9.发明授权公开(公告)号：US08031427B2
公开(公告)日：2011-10-04
申请号：US12483330
申请日：2009-06-12
申请人： Yong-su Kim , Jae-chul Shim , Cheol-soon Kim
发明人： Yong-su Kim , Jae-chul Shim , Cheol-soon Kim
CPC分类号： G11B5/59644
摘要： A method of servo writing for each track of a magnetic recording medium divided into a plurality of circular tracks including performing a phase adjustment operation by controlling a phase of a recording current according to a skew angle formed by a magnetic head and a track of the magnetic recording medium, and writing a servo pattern when the magnetic recording medium is magnetized using a magnetic head so as to have a magnetized pattern corresponding to a servo pattern.
摘要翻译： 一种用于分割成多个圆形轨迹的磁记录介质的每个轨道的伺服写入的方法，包括通过根据由磁头和磁道的轨道形成的倾斜角来控制记录电流的相位来执行相位调整操作 记录介质，并且当使用磁头磁化磁记录介质以便具有对应于伺服图案的磁化图案时，写入伺服图案。
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10.发明授权公开(公告)号：US07990643B1
公开(公告)日：2011-08-02
申请号：US12795129
申请日：2010-06-07
申请人： Ke Han , Pantas Sutardja , Rui Cao
发明人： Ke Han , Pantas Sutardja , Rui Cao
CPC分类号： G11B5/59644 , G11B20/14
摘要： Systems and techniques to configure a read channel include, in at least one implementation, an apparatus including: detection circuitry configured to process an input signal from a machine-readable medium to calculate metrics; monitoring circuitry configured to determine a polarity of the input signal based on the metrics and at least one of multiple framings of signal samples of the input signal; and selection circuitry to configure a read channel for the machine-readable medium based on the determined polarity.
摘要翻译： 用于配置读通道的系统和技术在至少一个实现中包括：设备，包括：检测电路，被配置为处理来自机器可读介质的输入信号以计算度量; 监视电路，被配置为基于所述度量和所述输入信号的信号样本的多个成帧中的至少一个来确定所述输入信号的极性; 以及选择电路，用于基于所确定的极性来配置机器可读介质的读通道。
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