专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06236527B1 Disk drive with actuator load/unload controller 失效
标题翻译：带执行器负载/卸载控制器的磁盘驱动器
公开(公告)号：US06236527B1
公开(公告)日：2001-05-22
申请号：US09103758
申请日：1998-06-24
申请人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
发明人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
IPC分类号： G11B2102
CPC分类号： G11B19/04 , G11B5/54 , G11B21/12
摘要： A disk drive with means to prevent accidental landing of a head/slider on the disk surface is described. In one embodiment a shock sensor is provided to sense external shocks received by the mechanism. During loading (positioning) of the actuator bearing the head/slider over the disk, if a shock is sensed, loading is stopped and an immediate unloading is performed to return the actuator to the withdrawn position. In another embodiment the unload operation is performed when the rotational speed of the disk is changed. In another embodiment the unload operation is performed when the rotational speed of the disk drops below a threshold. A circuit and method for detecting when the rotational speed of the disk drops below a threshold is also provided. The unloading in the various embodiments may be performed using velocity control or without velocity control.
摘要翻译：描述了具有防止头/滑块在盘表面上意外着落的装置的磁盘驱动器。在一个实施例中，提供了一种震动传感器来感测由机构接收的外部冲击。在将头/滑块轴承到盘上的执行器的装载（定位）期间，如果感测到冲击，则停止加载，并立即执行卸载以将执行器返回到撤回位置。在另一个实施例中，当盘的旋转速度改变时执行卸载操作。在另一个实施例中，当盘的转速下降到阈值以下时，执行卸载操作。还提供了一种用于检测盘的转速何时下降到阈值以下的电路和方法。各种实施例中的卸载可以使用速度控制或无速度控制来执行。

2. 发明授权

US06229663B1 Disk drive loading/unloading apparatus and method for controlling the apparatus 失效
标题翻译：磁盘驱动装载装置及控制装置的方法
公开(公告)号：US06229663B1
公开(公告)日：2001-05-08
申请号：US09102971
申请日：1998-06-22
申请人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
发明人： Isao Yoneda , Hiroshi Uchiike , Shinji Ueno , Kenji Ogasawara , Yoshihiko Aoki , Fuminori Sai
IPC分类号： G11B2112
CPC分类号： G11B19/28 , G11B5/54 , G11B19/04 , G11B21/12
摘要： The present invention provides a disk drive, a loading/unloading apparatus, and a method for controlling the apparatus, capable of improving the reliability of data by performing stable speed control. A disk drive comprises a VCM spindle driver for rotating a disk, a magnetic head, an actuator mechanism for moving a head slider having the magnetic head to a position above the surface of the magnetic disk and an unloaded position, a ramp block, and a CPU/HDC for performing the speed control of an actuator and the calibration control for detecting the offset and dynamic range of an AD converter before the speed control and controlling the operation for reading or writing data from or into the disk, which increases a rectangular current value to be applied to a voice coil while successively changing codes, measures an offset in accordance with the AD converter value for each current value, and moreover measures a dynamic range by deciding a nonlinear area when the difference between the expected value and measured value of the AD converter becomes a predetermined value or more.
摘要翻译：本发明提供一种磁盘驱动器，装载/卸载装置以及用于控制装置的方法，能够通过执行稳定的速度控制来提高数据的可靠性。磁盘驱动器包括用于旋转磁盘的VCM主轴驱动器，磁头，用于将具有磁头的磁头滑块移动到磁盘表面上方的位置的致动机构，以及卸载位置，斜坡块和用于执行致动器的速度控制的CPU / HDC和用于在速度控制之前检测AD转换器的偏移和动态范围的校准控制，并且控制用于从盘读取或写入数据的操作，这增加了矩形电流在连续更改代码的同时应用于音圈的值，根据每个当前值的AD转换器值测量偏移量，并且当预期值和测量值之间的差值决定非线性区域时，测量动态范围 AD转换器变为预定值以上。

3. 发明授权

US6151183A Disk drive device and method for controlling the same 失效
标题翻译：磁盘驱动装置及其控制方法
公开(公告)号：US6151183A
公开(公告)日：2000-11-21
申请号：US79876
申请日：1998-05-15
申请人： Kenja Ogasawara , Fuminori Sai , Shinji Ueno , Isao Yoneda
发明人： Kenja Ogasawara , Fuminori Sai , Shinji Ueno , Isao Yoneda
IPC分类号： G11B5/02 , G11B5/60 , G11B21/08 , G11B21/12 , G11B21/21 , G11B23/50 , G11B21/02
CPC分类号： G11B21/21 , G11B21/083 , G11B5/6011
摘要： The invention relates to a magnetic recording device which can be used at a reduced atmospheric pressure without having the head/slider assembly stick to the disk. A method of the present invention for controlling the operation of a disk drive device in reduced atmospheric pressure where a read/write head mounted on a head support arm flies above the surface of a rotating recording disk. The head support arm is moved along a radial direction of the recording disk to position the read/write head to one of cylinder positions of the recording disk. The method comprises steps of (i) detecting a value of the reduced atmospheric pressure during a power on reset period before a read/write period, (ii) storing information indicating whether the detected value of atmospheric pressure is lower than a threshold value, and (iii) accessing, during the read/write period, the stored information to determine whether an operation for lowering a flying height of the read/write head to a height which is lower than a height for the read/write operation should be inhibited.
摘要翻译：本发明涉及一种磁记录装置，其可以在降低大气压的情况下使用，而不会使磁头/滑块组件粘到磁盘上。本发明的方法用于控制磁盘驱动装置在降低的大气压下的操作，其中安装在头部支撑臂上的读/写头在旋转记录盘的表面上方飞行。头支撑臂沿着记录盘的径向方向移动，以将读/写头定位到记录盘的圆柱体位置之一。该方法包括以下步骤：（i）在读/写周期之前的上电复位期间检测降低的大气压值，（ii）存储指示检测到的大气压值是否低于阈值的信息，以及（iii）在读/写周期期间访问所存储的信息，以确定是否应禁止将读/写头的飞行高度降低到低于读/写操作的高度的高度。

4. 发明授权

US07457065B2 Systems and methods for hard disk drive optimization and manufacturing 失效
标题翻译：用于硬盘驱动器优化和制造的系统和方法
公开(公告)号：US07457065B2
公开(公告)日：2008-11-25
申请号：US10692342
申请日：2003-10-22
申请人： Kenji Ogasawara , Hiroshi Yanagisawa , Koichi Sato , Keishi Takahashi , Fuminori Sai
发明人： Kenji Ogasawara , Hiroshi Yanagisawa , Koichi Sato , Keishi Takahashi , Fuminori Sai
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B5/86
摘要： The data possessed by a parent hard disk drive is exported to a baby hard disk drive, which is connected to the parent hard disk drive, and thus, the baby hard disk drive executes by itself an optimization/inspection process including writing of servo information. A hard disk drive is reproduced by incorporating “DNA” used for reproduction into each hard disk drive, and then, by performing self-optimization and/or self-inspection by a new hard disk drive (baby hard disk drive), according to information supplied by a finished hard disk drive (parent hard disk drive).
摘要翻译：父硬盘驱动器所拥有的数据被导出到连接到父硬盘驱动器的婴儿硬盘驱动器，因此，婴儿硬盘驱动器本身执行包括写入伺服信息的优化/检查过程。通过将用于再现的“DNA”复制到每个硬盘驱动器中，然后通过由新的硬盘驱动器（婴儿硬盘驱动器）进行自我优化和/或自检来再现硬盘驱动器由完成的硬盘驱动器（父硬盘驱动器）提供。

5. 发明授权

US07019933B2 Servo information write method, servo control method, data storage device, and program 失效
标题翻译：伺服信息写入方式，伺服控制方式，数据存储装置和程序
公开(公告)号：US07019933B2
公开(公告)日：2006-03-28
申请号：US10676410
申请日：2003-09-30
申请人： Kaoru Iseri , Takashi Kuroda , Nobuya Matsubara , Kenji Ogasawara , Fuminori Sai , Hiroshi Yanagisawa
发明人： Kaoru Iseri , Takashi Kuroda , Nobuya Matsubara , Kenji Ogasawara , Fuminori Sai , Hiroshi Yanagisawa
IPC分类号： G11B21/02
CPC分类号： G11B5/59633 , G11B21/106
摘要： A servo system wherein a read head R detects a servo pattern that is written on a magnetic disk by a write head W. Position control of the write head W is exercised in accordance with the detected servo pattern, and the read head R detects a propagation pattern that is written on the magnetic disk by the write head W. Position of the write head W is corrected in accordance with the detected propagation pattern.
摘要翻译：一种伺服系统，其中读头R检测由写头W写在磁盘上的伺服模式。根据检测到的伺服模式执行写入头W的位置控制，并且读取头R检测传播由写入头W写在磁盘上的图案。写头W的位置根据检测到的传播模式被校正。

6. 发明申请

US20070121235A1 Magnetic disk drive, method for registering defective sector, and method for controlling flying height 失效
标题翻译：磁盘驱动器，缺陷扇区的登记方法以及控制飞行高度的方法
公开(公告)号：US20070121235A1
公开(公告)日：2007-05-31
申请号：US11605649
申请日：2006-11-28
申请人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
发明人： Fuminori Sai , Makoto Takase , Kohji Takasaki , Hiroshi Yanagisawa
IPC分类号： G11B5/09 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments in accordance with the present invention relate to suppressing effects of the rotational jitter of a rotating medium during self-writing of patterns on the medium. In one embodiment, patterns are written on a track TE first. While a clock frequency is modulated using the difference between the readout time and target time of each pattern PE on the track TE, patterns PF are written on a track TF after a calculated delay time from the readout of each pattern PE. During pattern writing on the track TF, any timing errors of the patterns PE are stored into memory. While the target time for each pattern PF on the track TF is being corrected using the stored timing errors of the patterns PE and the clock frequency is being modulated using the difference between the readout time and corrected target time of each pattern PF, patterns PG are written on a track TG after a calculated delay time from the readout of each pattern PF.
摘要翻译：根据本发明的实施例涉及在图案自写入介质时抑制旋转介质的旋转抖动的影响。在一个实施例中，模式首先写在轨道TE上。在使用轨道TE上的每个图案PE的读出时间和目标时间之间的差来调制时钟频率的情况下，在从每个图案PE的读出计算的延迟时间之后，在轨道TF上写入图案PF。在轨道TF上的模式写入期间，模式PE的任何定时错误都被存储到存储器中。虽然使用存储的图案PE的定时误差来校正轨道TF上的每个图案PF的目标时间，并且使用每个图案PF的读出时间和校正的目标时间之间的差来调制时钟频率，但是图案PG是在从每个图案PF的读出计算的延迟时间之后，在轨道TG上写入。

7. 发明申请

US20060056099A1 Method of writing patterns using head with correct phases, and data storage device 失效
公开(公告)号：US20060056099A1
公开(公告)日：2006-03-16
申请号：US11223486
申请日：2005-09-08
申请人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
发明人： Minoru Hashimoto , Kenji Okada , Fuminori Sai , Satoshi Yamamoto
IPC分类号： G11B21/02 , G11B5/09
CPC分类号： G11B5/59633 , G11B5/59666
摘要： Embodiments of the invention relate to writing servo patterns onto a recording disk with a high degree of accuracy and with correct phases in a servo-pattern-writing process. An In-Drive SSW (TSSW) process is processing to write product servo patterns onto a recording disk on the basis of time aligned patterns. In the processing to write product servo patterns onto a recording disk, time intervals between time aligned patterns already written on an ID-side track are measured, and timings to write the product servo patterns onto the recording disk on the basis of the measured time intervals are determined. Product servo patterns are then written onto an OD-side track with the determined timings relative to detections of the time aligned patterns used as references. In this way, circumferential-direction positions of product servo patterns written on a track may be aligned to the corresponding circumferential-direction positions of product servo patterns written on an adjacent track.

8. 发明授权

US06424476B1 Method and apparatus for controlling read and write operations in a storage device 失效
标题翻译：用于控制存储设备中的读写操作的方法和装置
公开(公告)号：US06424476B1
公开(公告)日：2002-07-23
申请号：US09100496
申请日：1998-06-19
申请人： Nobuya Matsubara , Fuminori Sai , Yuzo Nakagawa
发明人： Nobuya Matsubara , Fuminori Sai , Yuzo Nakagawa
IPC分类号： G11B509
CPC分类号： G11B5/09 , G11B5/012 , G11B7/00
摘要： A hard disk drive (HDD) having a control unit that reduces the number of control signals required to control the operation of the channel and amplifier. The HDD includes a control unit for controlling reading or writing data from or to a magnetic head, a preamplifier for amplifying the data from the magnetic head, and a channel module which is controlled by the control unit. The channel module converts digital data signals to data write signals and also converts analog signals from the preamplifier to digital signals. Control information is transmitted to the channel module over the data bus which is used to transmit or receive data read/write signals. The channel module performs control in response to transmitted control information.
摘要翻译：具有控制单元的硬盘驱动器（HDD），其减少控制通道和放大器的操作所需的控制信号的数量。 HDD包括用于控制从磁头读取或写入数据的控制单元，用于放大来自磁头的数据的前置放大器，以及由控制单元控制的通道模块。通道模块将数字数据信号转换为数据写入信号，并将模拟信号从前置放大器转换为数字信号。控制信息通过用于发送或接收数据读/写信号的数据总线传送给通道模块。信道模块响应于发送的控制信息执行控制。

9. 发明授权

US08190831B2 Methods and apparatus for detecting a syncMark in a hard disk drive 有权
标题翻译：用于检测硬盘驱动器中syncMark的方法和装置
公开(公告)号：US08190831B2
公开(公告)日：2012-05-29
申请号：US12262550
申请日：2008-10-31
申请人： Yuan Xing Lee , Fuminori Sai , Shaohua Yang
发明人： Yuan Xing Lee , Fuminori Sai , Shaohua Yang
IPC分类号： G06F13/00
CPC分类号： G11B20/10009 , G11B5/596 , G11B20/1217 , G11B20/1403 , G11B20/1426 , G11B27/3027 , G11B2020/1287 , G11B2020/1476 , G11B2220/20
摘要： Methods and apparatus are provided for detecting a syncMark in a read channel, such as a hard disk drive. A syncMark is detected in a sector in an iterative read channel by obtaining a sector signal from a storage media, the sector signal comprising a first syncMark, data and a second syncMark substantially at an end of the sector; determining whether the first syncMark is detected in the sector signal; searching for the second syncMark if the first syncMark is not detected in the sector signal; and detecting and decoding the sector signal based on a detection of the second syncMark. The second syncMark may be positioned, for example, following data in the sector signal. The second syncMark can be searched for in a window within the signal sector that is based on an estimated location of the first syncMark.
摘要翻译：提供了用于检测诸如硬盘驱动器之类的读通道中的syncMark的方法和装置。通过从存储介质获得扇区信号，在迭代读通道中的扇区中检测syncMark，扇区信号包括基本上在扇区末端的第一syncMark，数据和第二syncMark; 确定在扇区信号中是否检测到第一syncMark; 如果在扇区信号中未检测到第一syncMark，则搜索第二syncMark; 以及基于所述第二syncMark的检测来检测和解码所述扇区信号。第二syncMark可以被定位在例如扇区信号中的跟随数据之后。可以在基于第一syncMark的估计位置的信号扇区内的窗口中搜索第二syncMark。

10. 发明授权

US07733591B2 Data storage device with data recovery process using fixed phase clocking for analog-to-digital conversion 失效
标题翻译：具有数据恢复过程的数据存储设备使用固定相位时钟进行模数转换
公开(公告)号：US07733591B2
公开(公告)日：2010-06-08
申请号：US11641322
申请日：2006-12-18
申请人： Kraig Bottemiller , Richard Leo Galbraith , Weldon Mark Hanson , Travis Roger Oenning , Michael Joseph Ross , Fuminori Sai
发明人： Kraig Bottemiller , Richard Leo Galbraith , Weldon Mark Hanson , Travis Roger Oenning , Michael Joseph Ross , Fuminori Sai
IPC分类号： G11B5/09 , G11B15/52 , G11B19/02 , G11B5/02 , G11B20/18
CPC分类号： G11B5/09 , G11B20/10055 , G11B20/10222 , G11B20/10481 , G11B20/10527 , G11B20/1403 , G11B2020/1062
摘要： The invention includes apparatus and methods that allow a data storage device perform an enhanced data recovery procedure (DRP) that includes obtaining a new digital sampling of the voltages for the failing unit of data by re-reading the analog signal and converting it to digital form using an analog-to-digital conversion (ADC) using a fixed phase clock signal. The data samples are re-interpolated using a programmable delay line. The digital values representing the voltages are stored a buffer so that the data can be processed repeatedly using varying parameters as part of the data recovery procedure. Optionally the samples stored in the buffer can be processed in the reverse direction (from end of sector to beginning of sector) without requiring modification of the standard Viterbi detector since it inherently works on data processed in either direction.
摘要翻译：本发明包括允许数据存储设备执行增强型数据恢复过程（DRP）的装置和方法，其包括通过重新读取模拟信号并将其转换为数字形式来获得用于数据故障单元的电压的新数字采样使用固定相位时钟信号的模数转换（ADC）。使用可编程延迟线重新插值数据采样。表示电压的数字值被存储在缓冲器中，使得可以使用变化的参数重复处理数据，作为数据恢复过程的一部分。可选地，存储在缓冲器中的样本可以在相反方向（从扇区的结束到扇区的开始）进行处理，而不需要修改标准维特比检测器，因为它固有地对在任一方向上处理的数据进行工作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式