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公开(公告)号：US06999261B2
公开(公告)日：2006-02-14
申请号：US10075234
申请日：2002-02-15
IPC分类号： G11B21/02
CPC分类号： G11B5/59633
摘要： Servo-write arrangements to self-record servo signals onto magnetic disk arrangements.
摘要翻译： 将伺服信号自动记录到磁盘装置上的伺服写入装置。
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公开(公告)号：US06970320B2
公开(公告)日：2005-11-29
申请号：US10624557
申请日：2003-07-23
CPC分类号： G11B5/59633
摘要： A servo write method capable of generating and recording correction data, to be used for compensating for repeatable position error caused by write errors of servo patterns, in a short time is presented. In the recording of the servo pattern, correction data for correcting revolution-synchronous components are generated from a position error signal which is obtained from the difference between a target position and a magnetic head position, and the correction data are recorded in servo areas on a disk.
摘要翻译： 提出了能够在短时间内产生和记录用于补偿由伺服模式的写入错误引起的重复位置误差的校正数据的伺服写入方法。 在伺服模式的记录中，根据从目标位置和磁头位置之间的差异获得的位置误差信号产生用于校正旋转同步分量的校正数据，并且校正数据被记录在伺服区域上 磁盘。
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公开(公告)号：US07116509B2
公开(公告)日：2006-10-03
申请号：US10639657
申请日：2003-08-13
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B5/09
摘要： A magnetic disk apparatus capable of generating a reference clock signal without using an external reference by writing a clock track only once using a head of the magnetic disk apparatus even if the head is of a read/write element separation type. Using the head of the magnetic disk apparatus, a clock track is recorded only once and the recorded clock track is played back to measure the total number of clock bits in one revolution. A time interval between servo sectors is determined by dividing the total number of clock bits thus measured by the number of servo sectors. By using as a timing reference the clock bits produced by playing back the clock track, the servo sectors are recorded in such a manner that they are located at the determined interval.
摘要翻译： 一种磁盘装置，即使磁头是读/写元件分离型，也能够通过使用磁盘装置的磁头写入时钟磁道而不使用外部参考而产生参考时钟信号。 使用磁盘装置的磁头，只记录时钟磁道一次，并记录所记录的时钟磁道以测量一转中的时钟位总数。 通过将由此测量的时钟位的总数除以伺服扇区数来确定伺服扇区之间的时间间隔。 通过使用通过播放时钟轨道产生的时钟位作为时序参考，伺服扇区以这样的方式被记录，使得它们以确定的间隔被定位。
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公开(公告)号：US06906884B2
公开(公告)日：2005-06-14
申请号：US10054794
申请日：2002-01-25
CPC分类号： G11B5/59633
摘要： A magnetic disk apparatus includes an actuator for moving a head to a position above the magnetic disk in a servo track movement operation, a range limiter for limiting a movable range of the actuator, a range specifier for setting a specific range of the actuator in the movable range of the actuator, and a control unit. The control unit enables writing a servo signal into the specific range at servo track movement pitch based on servo tracks recorded with the servo signal, correcting the servo track movement pitch on the basis of the number of servo tracks in the specific range and executing control to write the servo signal at corrected servo track movement pitch.
摘要翻译： 磁盘装置包括用于在伺服轨迹移动操作中将磁头移动到磁盘上方的位置的致动器，用于限制致动器的可移动范围的范围限制器，用于设置致动器的特定范围的范围说明符 致动器的可移动范围和控制单元。 控制单元可以基于伺服信号记录的伺服轨迹，以伺服轨迹移动间距将伺服信号写入特定范围，基于特定范围内的伺服磁道数量来校正伺服磁道移动间距，并执行控制 以校正的伺服轨迹移动间距写入伺服信号。
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5.发明授权公开(公告)号：US06636385B2
公开(公告)日：2003-10-21
申请号：US09788513
申请日：2001-02-21
IPC分类号： G11B555
CPC分类号： G11B33/08 , G11B5/5582
摘要： Under existence of an impact and a vibration, a throughput and a reliability of a recording and reproducing operation in a magnetic disc apparatus are reduced. Accordingly, a mechanism for fixing a coarse moving actuator at an optional position is provided, at a time of following to a track, a motion of the coarse moving actuator is restricted and a positioning is performed by a fine moving actuator. Even when a vibration and an impact is applied from an external portion during the track following operation, it is possible to prevent the head position from being shifted and it is possible to perform a recording and reproducing operation. Further, it is possible to prevent adjacent data from being erroneously broken.
摘要翻译： 在存在冲击和振动的情况下，磁盘装置中的记录和再现操作的吞吐量和可靠性降低。 因此，在跟随轨道的时刻，提供了将可移动的致动器固定在可选位置的机构，限制了粗动作致动器的动作，并且通过精细的移动致动器执行定位。 即使当在跟踪操作期间从外部施加振动和冲击时，也可以防止头位移动，并且可以执行记录和再现操作。 此外，可以防止相邻数据被错误地破坏。
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公开(公告)号：US06888696B2
公开(公告)日：2005-05-03
申请号：US10041598
申请日：2002-01-10
CPC分类号： G11B5/5521 , G11B5/59611
摘要： The magnetic disk apparatus includes a magnetic disk for storing thereinto information; a head equipped with a recording conversion element for writing information into the magnetic disk and a reproducing conversion element for reading information from the magnetic disk; an actuator arranged by a suspension for supporting the head so as to move the head on the magnetic disk, and also a drive apparatus for driving the suspension; and a stopper for limiting a movable range of the actuator, whereby a distance between a reproduction element and a recording element is measured and also a track width of the magnetic disk is measured in order to execute a self-servo write operation.
摘要翻译： 磁盘装置包括用于存储信息的磁盘; 配备有用于将信息写入磁盘的记录转换元件的头部和用于从磁盘读取信息的再现转换元件; 由用于支撑头部的悬架以使头部移动到磁盘上的致动器，以及用于驱动悬架的驱动装置; 以及用于限制致动器的可移动范围的止动件，由此测量再现元件和记录元件之间的距离，并且还测量磁盘的轨道宽度以执行自伺服写入操作。
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公开(公告)号：US08743496B2
公开(公告)日：2014-06-03
申请号：US13176956
申请日：2011-07-06
申请人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
发明人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
IPC分类号： G11B5/02
CPC分类号： G11B5/59688 , G11B5/746 , G11B5/82 , G11B5/865
摘要： Embodiments described herein provide for robust servo patterns that comply with planarization constraints and also allow use of a single master template for manufacture of both the front and back of a magnetic disk. Planarization constraints are met because only a portion of servo data is hard patterned on the magnetic disk and the hard patterned servo data areas comply with planarization constraints. The servo pattern has two symmetrical servo write assist patterns, one on each side of a central burst pattern. The servo sync, SAM, track-ID, sector-ID, and/or RRO values can be written magnetically by the write head onto these servo write assist patterns after the completion of the planarization process. The symmetric design of the servo pattern allows both a left-to-right and a right-to-left servo write and read back, thereby enabling use of a single master template in magnetic disk manufacture.
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8.发明授权Servo pattern compatible with planarization constraints of patterned media and use of a single master template 失效伺服图案与图案化介质的平坦化约束和单个主模板的使用兼容公开(公告)号：US08670207B2
公开(公告)日：2014-03-11
申请号：US13177155
申请日：2011-07-06
申请人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
发明人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
CPC分类号： G11B5/59688 , B82Y10/00 , G11B5/59655
摘要： Embodiments described herein provide for robust servo patterns that comply with planarization constraints and also allow use of a single master template for manufacture of both the front and back of a magnetic disk. Planarization constraints are met because only a portion of servo data is hard patterned on the magnetic disk and the hard patterned servo data areas comply with planarization constraints. The servo pattern has two symmetrical servo write assist patterns, one on each side of a central burst pattern. The servo sync, SAM, track-ID, sector-ID, and/or RRO values can be written magnetically by the write head onto these servo write assist patterns after the completion of the planarization process. The symmetric design of the servo pattern allows both a left-to-right and a right-to-left servo write and read back, thereby enabling use of a single master template in magnetic disk manufacture.
摘要翻译： 本文描述的实施例提供了符合平坦化约束的鲁棒伺服模式，并且还允许使用单个主模板来制造磁盘的前部和后部。 满足平面化约束，因为只有一部分伺服数据在硬盘上硬图案化，硬图案化伺服数据区符合平坦化约束。 伺服模式具有两个对称的伺服写入辅助模式，一个在中央突发模式的每一侧。 在完成平坦化处理之后，伺服同步，SAM，轨迹ID，扇区ID和/或RRO值可由磁头写入这些伺服写入辅助模式。 伺服模式的对称设计允许从左到右和从右到左的伺服写入和读回，从而使得能够在磁盘制造中使用单个主模板。
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公开(公告)号：US08625219B2
公开(公告)日：2014-01-07
申请号：US13177396
申请日：2011-07-06
申请人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
发明人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
CPC分类号： G11B5/59688 , G11B5/746 , G11B5/82 , G11B2220/252
摘要： Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo data between servo zones of different servo frequency. The overlap zones may be dual frequency zones. The dual frequency zones have a first set of overlap patterns with the substantially identical pattern as the bordering lower frequency servo zone and a second set of overlap patterns with the substantially identical pattern as the bordering higher frequency servo zone. A bootstrap zone can be included near the inner diameter to assist initial servo writing. Alternatively the overlap zones are bootstrap zones. Such bootstrap zones have both bootstrap patterns and overlap patterns, the overlap patterns have the substantially identical pattern as a bordering servo zone. Bootstrap patterns only require DC magnetization for servo operability.
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10.发明授权Patterned media with an alternating series of concentric servo zones and overlap zones 有权带有交替系列同心伺服区和重叠区域的图案化介质公开(公告)号：US08619379B2
公开(公告)日：2013-12-31
申请号：US13177445
申请日：2011-07-06
申请人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
发明人： Keiichiro Nonaka , Kei Yasuna , Masahito Kobayashi
CPC分类号： G11B5/82 , G11B5/59688 , G11B5/746 , G11B20/1258 , G11B2020/1267 , G11B2020/1281 , G11B2020/1287 , G11B2220/2516
摘要： Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo data between servo zones of different servo frequency. The overlap zones may be dual frequency zones. The dual frequency zones have a first set of overlap patterns with the substantially identical pattern as the bordering lower frequency servo zone and a second set of overlap patterns with the substantially identical pattern as the bordering higher frequency servo zone. A bootstrap zone can be included near the inner diameter to assist initial servo writing. Alternatively the overlap zones are bootstrap zones. Such bootstrap zones have both bootstrap patterns and overlap patterns, the overlap patterns have the substantially identical pattern as a bordering servo zone. Bootstrap patterns only require DC magnetization for servo operability.
摘要翻译： 本文描述的实施例提供具有交替的同心伺服区域和重叠区域的图案化介质同心区域。 重叠区域有助于在不同伺服频率的伺服区域之间写入伺服数据。 重叠区域可以是双频区域。 双频带具有第一组重叠图案，其具有与边界较低频率伺服区基本相同的图案，以及具有与边界较高频率伺服区基本相同的图案的第二组重叠图案。 可以在内径附近包含自举区域以辅助初始伺服写入。 或者，重叠区域是引导区域。 这种自举区具有自举图案和重叠图案，重叠图案具有与边界伺服区基本相同的图案。 自举模式只需要直流磁化来实现伺服可操作性。
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