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    • 33. 发明授权
    • Head actuator velocity control for electrical power off in a disk drive
    • 头驱动器速度控制,用于在磁盘驱动器中关闭电源
    • US08179640B2
    • 2012-05-15
    • US12335759
    • 2008-12-16
    • Brian K. Tanner
    • Brian K. Tanner
    • G11B5/55
    • G11B21/12
    • A hard disk drive with a voice coil motor coupled to a head. The head is coupled to a disk that is rotated by a spindle motor. The spindle motor generates a back-emf current. The disk drive also includes a drive circuit that causes the voice coil motor to move the head off of the disk. The drive circuit provides at least a portion of the back-emf voltage to the voice coil motor if a head velocity exceeds a first predetermined value and a larger portion of the back-emf voltage if the head velocity exceeds a second predetermined value. For example, a relatively small amount of voltage can be provided if the head velocity falls below a first threshold to accelerate the head and a larger current can be provided if the head velocity falls below a lower threshold to generate a greater head thrust.
    • 具有耦合到头部的音圈电机的硬盘驱动器。 磁头耦合到由主轴电机旋转的磁盘。 主轴电机产生反电动势。 磁盘驱动器还包括使音圈电机将磁头移离磁盘的驱动电路。 如果磁头速度超过第一预定值,并且如果磁头速度超过第二预定值,则驱动电路向音圈电动机提供至少一部分反电动势电压。 例如,如果磁头速度低于第一阈值以加速磁头并且如果磁头速度低于较低的阈值以产生更大的磁头推力,则可以提供较大的电流。
    • 34. 发明授权
    • Floating guard band for shingle magnetic recording
    • 浮动保护带用于瓦片磁记录
    • US08179627B2
    • 2012-05-15
    • US12797963
    • 2010-06-10
    • Dar-Der ChangKen HongByeung Jun LeeXin Guo
    • Dar-Der ChangKen HongByeung Jun LeeXin Guo
    • G11B5/09
    • G11B5/012G11B20/1217G11B2020/1277G11B2020/1297G11B2220/2516
    • A hard disk drive that includes a disk with data written onto a plurality of tracks, a spindle motor that rotates the disk, and a head that is coupled to the disk. The disk drive also includes a circuit that writes data onto a first writable shingle band of tracks if the first writable shingle band is adjacent to a guard band of tracks. The first writable shingle band includes a number of tracks that is a function of a head width. The guard band of tracks is capable of becoming a writable shingle band. Changing the designation of a shingle band between guard and writable creates floating guard bands. The creation of floating guard bands allows for the writing of a single band without having to move and restore adjacent tracks until reaching a fixed guard band as required in the prior art.
    • 一种硬盘驱动器,其包括具有写入多个磁道的数据的磁盘,旋转该磁盘的主轴电机和耦合到该磁盘的磁头。 磁盘驱动器还包括一个电路,如果第一个可写入的瓦带与轨道的保护带相邻,则将数据写入轨道的第一可写入板带上。 第一可写入板带包括多个磁道,其是磁头宽度的函数。 轨道的守卫带能够成为一个可写的木瓦带。 改变防护和可写之间的瓦楞带的名称会创建浮动防护带。 浮动保护带的创建允许写入单个频带,而不必移动和恢复相邻轨道,直到达到现有技术中所需的固定保护频带。
    • 39. 发明授权
    • Data storage using virtual addressing
    • 使用虚拟寻址的数据存储
    • US08527735B2
    • 2013-09-03
    • US12819362
    • 2010-06-21
    • In-sik RyuMoon-chol ParkSe-wook NaJae-sung Lee
    • In-sik RyuMoon-chol ParkSe-wook NaJae-sung Lee
    • G06F12/08
    • G11B27/32G06F3/0611G06F3/0659G06F3/0676G06F12/1009G11B2220/2516
    • Provided are a data storage medium accessing method of accessing a data storage medium of a data storage device according to a virtual address (VA), the data storage device to access the data storage medium according to the VA, and a computer readable recording medium having recorded thereon a program to access the data storage medium accessing method. The data storage medium accessing method includes the operations of converting a logical block address (LBA) included in a command received from a host into a VA and converting the VA into a real address of a data storage medium included in a data storage device, and accessing the data storage medium using the real address, wherein the VA is an address that is based on a reserved block of the data storage medium in a data write operation, wherein the reserved block is a valid block that is ready to have data written thereto, and wherein a current location of a head included in the data storage device during the data write operation is set according to the reserved block.
    • 提供了一种根据虚拟地址(VA)访问数据存储设备的数据存储介质的数据存储介质访问方法,根据VA访问数据存储介质的数据存储设备以及具有 在其上记录有访问数据存储介质访问方法的程序。 数据存储介质访问方法包括将从主机接收的命令中包括的逻辑块地址(LBA)转换为VA并将VA转换为包括在数据存储设备中的数据存储介质的实际地址的操作,以及 使用实际地址访问数据存储介质,其中VA是在数据写入操作中基于数据存储介质的保留块的地址,其中保留块是准备好将数据写入的有效块 并且其中在数据写入操作期间包括在数据存储设备中的头的当前位置根据保留块被设置。