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21. 发明授权

US07230890B2 Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion 有权
标题翻译：用于稳定盘驱动器运行的装置和方法，用于设置模式转换
公开(公告)号：US07230890B2
公开(公告)日：2007-06-12
申请号：US11231743
申请日：2005-09-22
申请人： Young-ok Koh
发明人： Young-ok Koh
IPC分类号： G11B7/095
CPC分类号： G11B7/09 , G11B7/0941 , G11B7/0948 , G11B19/045
摘要： An apparatus which stabilizes an operation of a disc driver in a mode conversion setting section includes a pickup which reads information from a disc that is inserted into the disc driver, a filter which performs a low-pass filtering of a servo error signal that is generated during an operation of the pickup, a selector which selects one of the servo error signal and the low-pass filtered servo error signal from the filter and outputs the selected servo error signal to drive the pickup using the selected servo error signal, and a control signal generator which generates a signal to control the selector to select the low-pass filtered servo error signal in a mode conversion setting section of the disc driver. Accordingly, a defocus and a detrack can be prevented in the mode conversion setting section of the disc driver.
摘要翻译：在模式转换设置部分中稳定盘驱动器的操作的装置包括从插入盘驱动器的盘读取信息的拾取器，执行产生的伺服误差信号的低通滤波的滤波器在拾取器的操作期间，选择器从所述滤波器中选择所述伺服误差信号和所述低通滤波的伺服误差信号中的一个，并输出所选择的伺服误差信号，以使用所选择的伺服误差信号来驱动所述拾取器，以及控制信号发生器，其产生信号以控制选择器在盘驱动器的模式转换设置部分中选择低通滤波的伺服误差信号。因此，可以在盘驱动器的模式转换设置部分中防止散焦和脱轨。

22. 发明授权

US07120103B2 Information storage apparatus 有权
标题翻译：信息存储装置
公开(公告)号：US07120103B2
公开(公告)日：2006-10-10
申请号：US11150348
申请日：2005-06-13
申请人： Masakatsu Matsui
发明人： Masakatsu Matsui
IPC分类号： G11B20/18
CPC分类号： G11B27/24 , G11B7/0045 , G11B7/0946 , G11B19/04 , G11B19/041 , G11B19/042 , G11B19/045 , G11B27/3027 , G11B27/36 , G11B2220/2545
摘要： An information storage apparatus records, reproduces and/or erases information with respect to a recording medium. The apparatus includes a servo error generation detector for detecting a generation of a servo error based on at least one of servo signals including a focus error signal and a tracking error signal which are derived from output signals of a light receiving element, and a data recording resuming section for temporarily interrupting a data recording with respect to the recording medium, temporarily turning OFF a servo and then turning ON the servo again, to thereafter synchronize recording data to recorded data already recorded on the recording medium, and resume recording of the recording data continuing without a discontinuity to an end of the recorded data recorded immediately before the interruption of the data recording, when the generation of the servo error is detected while recording data on the recording medium.
摘要翻译：信息存储装置记录，再现和/或擦除关于记录介质的信息。该装置包括伺服误差产生检测器，用于基于包括从光接收元件的输出信号导出的聚焦误差信号和跟踪误差信号的伺服信号中的至少一个来检测伺服误差的产生，以及数据记录恢复部分，用于临时中断相对于记录介质的数据记录，暂时关闭伺服，然后再次接通伺服，然后将记录数据与已经记录在记录介质上的记录数据同步，并重新开始记录数据当在记录介质上记录数据时检测到伺服误差的产生时，连续而不间断地在数据记录中断之前记录的记录数据结束。

23. 发明授权

US06862155B2 Squeeze evaluations that account for low frequency components, in a controller usable in a data handling system 失效
标题翻译：在可用于数据处理系统的控制器中挤压考虑低频分量的评估
公开(公告)号：US06862155B2
公开(公告)日：2005-03-01
申请号：US10401358
申请日：2003-03-26
申请人： Yong Y. Yang , Qiang Bi , Xiong Liu , ChoonKiat Lim
发明人： Yong Y. Yang , Qiang Bi , Xiong Liu , ChoonKiat Lim
IPC分类号： G11B5/596
CPC分类号： G11B5/59627 , G11B19/045
摘要： Position error values are obtained from a transducer head while following a plurality of servo tracks with a servo loop that band-blocks a frequency range that includes F, a nominal rotation frequency. An estimated difference distribution is derived from the position error values, the difference distribution having a first frequency component at a positive frequency ≦2*F. A scalar track squeeze magnitude indicator is derived from the estimated difference distribution so that the indicator to be transmitted depends on the frequency component.
摘要翻译：位置误差值是从一个换能器头获得的，同时跟随一个伺服回路的多个伺服轨道，该伺服回路对包括F的标称旋转频率的频率范围进行带阻。从位置误差值导出估计的差分布，差分分布具有正频率<= 2 * F的第一频率分量。从估计的差分分布导出标量轨迹挤压幅度指示符，使得要发送的指示符取决于频率分量。

24. 发明授权

US12106773B2 Magnetic disk device and control method 有权
公开(公告)号：US12106773B2
公开(公告)日：2024-10-01
申请号：US18181961
申请日：2023-03-10
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Takuya Mori , Tetsuo Kuribayashi , Kazuo Chokki
IPC分类号： G11B20/18 , G11B5/012 , G11B19/04
CPC分类号： G11B19/045 , G11B5/012 , G11B2220/2516
摘要： According to one embodiment, a magnetic disk device includes a memory and a controller. The memory stores, for a predetermined track on a magnetic disk in the device, a counter, a counter threshold, and weights. The weights are individually set for divided areas of the predetermined track. The weights each have magnitude inversely proportional to a guaranteed number of times of data readout. When writing to an adjacent track of one or more of the divided areas is executed, the controller multiplies a number of times of writing by the weight corresponding to the one or more of the divided areas and adds the number of times of writing to the counter. When a numerical value of the counter reaches the counter threshold, the controller executes refresh to rewrite data in the predetermined track or executes reading for determining whether or not to perform the refresh.

25. 发明公开

US20240062784A1 MAGNETIC DISK DEVICE AND CONTROL METHOD 审中-公开
公开(公告)号：US20240062784A1
公开(公告)日：2024-02-22
申请号：US18181961
申请日：2023-03-10
申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
发明人： Takuya MORI , Tetsuo KURIBAYASHI , Kazuo CHOKKI
IPC分类号： G11B19/04 , G11B5/012
CPC分类号： G11B19/045 , G11B5/012 , G11B2220/2516
摘要： According to one embodiment, a magnetic disk device includes a memory and a controller. The memory stores, for a predetermined track on a magnetic disk in the device, a counter, a counter threshold, and weights. The weights are individually set for divided areas of the predetermined track. The weights each have magnitude inversely proportional to a guaranteed number of times of data readout. When writing to an adjacent track of one or more of the divided areas is executed, the controller multiplies a number of times of writing by the weight corresponding to the one or more of the divided areas and adds the number of times of writing to the counter. When a numerical value of the counter reaches the counter threshold, the controller executes refresh to rewrite data in the predetermined track or executes reading for determining whether or not to perform the refresh.

26. 发明申请

US20170061997A1 HARD DISK DRIVE AND HEAD POSITIONING METHOD 有权
标题翻译：硬盘驱动器和头部定位方法
公开(公告)号：US20170061997A1
公开(公告)日：2017-03-02
申请号：US14975366
申请日：2015-12-18
申请人： Kabushiki Kaisha Toshiba
发明人： Takao Furuhashi
IPC分类号： G11B5/596 , G11B20/18
CPC分类号： G11B19/045 , G11B5/59611 , G11B5/59627
摘要： According to one embodiment, a hard disk drive includes a disk including a plurality of data areas, and a plurality of servo areas between the plurality of data areas, an arm holding a write head and a read arm, and a positioning module which positions the read head or the write head by rotating the arm, wherein the positioning module positioning the write head by positioning the read head, and adjusting a position of the read head or the write head, based on an output of the read head located in a data area between two servo areas adjacent in a peripheral direction, of the plurality of servo areas.
摘要翻译：根据一个实施例，硬盘驱动器包括包括多个数据区的盘，以及多个数据区之间的多个伺服区，保持写入头和读取臂的臂以及定位模块通过旋转臂来读取头或写头，其中定位模块通过定位读取头来定位写入头，并且基于位于数据中的读取头的输出来调整读取头或写入头的位置在多个伺服区域中在周边方向上相邻的两个伺服区域之间的区域。

27. 发明授权

US09177582B1 Magnetic disk apparatus and off-tracking detection method 有权
标题翻译：磁盘装置和非跟踪检测方法
公开(公告)号：US09177582B1
公开(公告)日：2015-11-03
申请号：US14694422
申请日：2015-04-23
申请人： Kabushiki Kaisha Toshiba
发明人： Takayuki Kawabe , Masahide Kanegae
IPC分类号： G11B5/596 , G11B19/04
CPC分类号： G11B5/59694 , G11B5/59688 , G11B19/045
摘要： In a disk apparatus, media include first and second surfaces having first and second servo patterns which are read at different timings by first and second heads. A controller controls the first head based on a first demodulated position obtained by demodulating the first servo pattern and a target position. The controller calculates a first estimated demodulated position from the demodulated position and a first demodulated velocity based on the first servo patterns, calculates a second estimated demodulated position from the first demodulated position and a second demodulated velocity based on the second servo patterns, and stops writing operation of the first head in accordance with one of the first and second estimated demodulated positions exceeding a threshold.
摘要翻译：在盘装置中，介质包括具有第一和第二伺服模式的第一表面和第二表面，该第一和第二表面在不同的定时由第一和第二头读取。控制器基于通过解调第一伺服模式和目标位置获得的第一解调位置控制第一头。控制器基于第一伺服模式从解调位置计算第一估计解调位置和第一解调速度，基于第二伺服模式从第一解调位置计算第二估计解调位置和第二解调速度，并停止写入根据超过阈值的第一和第二估计解调位置之一执行第一头的操作。

28. 发明授权

US09019638B1 Systems and methods for performing timing acquisition in a read/write channel module 有权
标题翻译：在读/写通道模块中执行定时采集的系统和方法
公开(公告)号：US09019638B1
公开(公告)日：2015-04-28
申请号：US14461767
申请日：2014-08-18
申请人： Marvell International Ltd.
发明人： Michael Madden , Gregory Burd
IPC分类号： G11B5/02 , G11B5/09 , G11B19/04 , G11B20/10
CPC分类号： G11B20/10046 , G11B5/09 , G11B19/045 , G11B20/10222 , G11B20/1217
摘要： A read/write channel module including a sampling module configured to sample a read signal corresponding to data stored on a disk. A first preamble is encoded with a first timing recovery pattern on a first track of the disk. The first timing recovery pattern includes a first pattern that changes every x bits. A second preamble is encoded with a second timing recovery pattern on a second track of the disk adjacent to the first track. The second timing recovery pattern includes a second pattern that changes every y bits. A data processing module is configured to process the read signal to remove inter track interference from the read signal based on a difference between the first timing recovery pattern and the second timing recovery pattern.
摘要翻译：读/写通道模块，其包括被配置为对与存储在盘上的数据相对应的读信号进行采样的采样模块。在盘的第一轨道上用第一定时恢复模式对第一前同步码进行编码。第一定时恢复模式包括每x位改变的第一模式。在与第一轨道相邻的盘的第二轨道上用第二定时恢复模式对第二前同步码进行编码。第二定时恢复模式包括每y位改变的第二模式。数据处理模块被配置为基于第一定时恢复模式和第二定时恢复模式之间的差异来处理读取信号以从读取信号去除帧间干扰。

29. 发明申请

US20150015984A1 Storage Media Inter-Track interference Cancellation 审中-公开
标题翻译：存储介质间跟踪干扰消除
公开(公告)号：US20150015984A1
公开(公告)日：2015-01-15
申请号：US14500226
申请日：2014-09-29
申请人： LSI Corporation
发明人： Ming Jin , Erich F. Haratsch , George Mathew , Jongseung Park , Timothy W. Swatosh , Timothy B. Lund , Carl E. Forham
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B5/09 , G11B5/012 , G11B19/045 , G11B20/10046 , G11B20/10212 , G11B20/10462 , G11B20/1217 , G11B20/1423 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2020/183 , G11B2020/185 , G11B2020/1856 , G11B2220/2516
摘要： Described embodiments provide a method of cancelling inter-track interference (ITI) from one or more sectors read from a desired track of a storage medium. A read channel reads sectors in a desired track of the storage medium. A decoder of the read channel decodes the read sectors, and if the read sectors are incorrectly recovered from the storage medium, selected sectors of a first adjacent track and a second adjacent track are read. An ITI canceller of the read channel estimates ITI in the read sectors of the desired track corresponding to the selected sectors of each adjacent track and subtracts the estimated ITI of each adjacent track from the data for the sectors of the desired track, providing updated sector data. The ITI cancelled data is replayed to the decoder, Which decodes the ITT cancelled data and provides the decoded ITI cancelled data as output of the read channel.
摘要翻译：所描述的实施例提供了从存储介质的期望轨迹读取的一个或多个扇区消除轨道间干扰（ITI）的方法。读通道读取存储介质的期望轨道中的扇区。读通道的解码器解码读扇区，并且如果从存储介质中错误地恢复读扇区，则读取第一相邻轨道和第二相邻轨道的选定扇区。读通道的ITI消除器估计对应于每个相邻磁道的所选扇区的期望磁道的读扇区中的ITI，并从期望磁道的扇区的数据中减去每个相邻磁道的估计ITI，从而提供更新的扇区数据。 ITI取消的数据被重播到解码器，解码器解码ITT取消的数据，并将解码的ITI取消的数据作为读取通道的输出。

30. 发明授权

US08929019B2 Read/write apparatus and read/write method 有权
标题翻译：读/写设备和读/写方式
公开(公告)号：US08929019B2
公开(公告)日：2015-01-06
申请号：US13719778
申请日：2012-12-19
申请人： Kabushiki Kaisha Toshiba
发明人： Naoki Tagami , Masahide Kanegae
IPC分类号： G11B21/02 , G11B27/36 , G11B21/10 , G11B5/596 , G11B19/04
CPC分类号： G11B21/106 , G11B5/59627 , G11B19/045
摘要： According to at least one embodiment, a read/write apparatus includes a read module and a positioning module. The read module reads data of a predetermined data track using a read head. The positioning module positions the read head in accordance with an index indicating how much the read head reads data of a neighboring data track of the predetermined data track when the read head reads data of the predetermined data track.
摘要翻译：根据至少一个实施例，读/写装置包括读取模块和定位模块。读取模块使用读取头读取预定数据轨道的数据。定位模块根据一个索引来指示读取头，该索引指示当读取头读取预定数据轨道的数据时，读取头读取预定数据轨道的相邻数据轨道的数据量。

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