公开(公告)号：US20090080100A1

公开(公告)日：2009-03-26

申请号：US12283731

申请日：2008-09-12

申请人： Takahiro Saito ,  Kazunari Tsuchimoto ,  Atsushi Kanamaru

发明人： Takahiro Saito ,  Kazunari Tsuchimoto ,  Atsushi Kanamaru

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B5/59644 ,  G11B20/22 ,  G11B2020/10916 ,  G11B2020/1238 ,  G11B2020/1244 ,  G11B2020/1292 ,  G11B2020/1294 ,  G11B2220/2516

摘要： Embodiments of the present invention help to improve the capacity and the performance of a disk drive device. According to one embodiment, a data track pitch is set to each recording surface. The recording surfaces are divided into bands. A hard disk drive (HDD) sequentially moves a head to an adjacent data track in a band and performs a head switch at the band end in its data accessing. On a recording surface, the number of data tracks in each band is variable; and each band is constituted by different number of data tracks as necessary. The number of data tracks in each band is set so that the radial position of the band end comes close to the radial position of the corresponding band end on another recording surface. Accordingly, even if the recording surfaces have different variation rates of the data track pitch in the radial direction, increase in process time due to head switches can be suppressed.

摘要翻译： 本发明的实施例有助于提高磁盘驱动装置的容量和性能。 根据一个实施例，将数据轨道间距设置到每个记录表面。 记录表面被分成带。 硬盘驱动器（HDD）顺序地将磁头移动到频带中的相邻数据磁道，并在其数据访问中在频带端执行磁头切换。 在记录表面上，每个频带中的数据轨迹数是可变的; 并且每个频带由必要的不同数量的数据轨道构成。 每个带中的数据轨道的数量被设置为使得带端的径向位置接近另一个记录表面上相应带端的径向位置。 因此，即使记录面在径向方向上具有不同的数据磁道间距的变化率，也可以抑制由磁头开关引起的处理时间的增加。

公开(公告)号：US6134071A

公开(公告)日：2000-10-17

申请号：US93963

申请日：1998-06-08

申请人： Haruo Andoh ,  Keiji Kobayashi ,  Yuji Yokoe ,  Kazunari Tsuchimoto

发明人： Haruo Andoh ,  Keiji Kobayashi ,  Yuji Yokoe ,  Kazunari Tsuchimoto

IPC分类号： G11B5/54 ,  G11B21/12 ,  G11B21/22 ,  G11B21/02

CPC分类号： G11B21/12 ,  G11B21/22 ,  G11B5/54

摘要： The present invention provides a disk drive, a load/unload unit, and a control method thereof which are capable of reliably unloading a head slider from a disk when power is turned off and enhancing reliability. A disk drive is equipped with a VCM spindle driver for rotating a disk, a magnetic head, an actuator mechanism for moving over the surface of the magnetic disk or to an evacuating position a head slider having the magnetic head, a ramp block, and a CPU/HDC (control means) for performing control of load and unload operations, speed control of the actuator mechanism, and control of an operation of reading or writing data from or to the disk. The CPU/HDC receives a specific command issued from the host immediately before power is turned off, and executes this command, then executes unload control, and notifies the host of command completion after the unload control has been completed.

摘要翻译： 本发明提供了一种磁盘驱动器，装载/卸载单元及其控制方法，其能够在电源关闭时提供可靠地从磁盘卸载磁头滑块并提高可靠性。 磁盘驱动器配备有用于旋转磁盘的VCM主轴驱动器，磁头，用于在磁盘表面上移动的致动器机构或者具有磁头的磁头滑块，斜坡块和 用于执行加载和卸载操作的控制的CPU / HDC（控制装置），致动器机构的速度控制以及从盘读取或写入数据的操作的控制。 在电源关闭之前，CPU / HDC接收到从主机发出的特定命令，并执行该命令，然后执行卸载控制，并在卸载控制完成后通知主机命令完成。