Micro miniature hard disk drive
    1.
    发明授权
    Micro miniature hard disk drive 失效
    微型微型硬盘驱动器

    公开(公告)号:US5291355A

    公开(公告)日:1994-03-01

    申请号:US850443

    申请日:1992-03-10

    摘要: A hard disk drive for a computer system including a head disk assembly with a disk platter of approximately one-and-eight-tenths-inch in diameter capable of storing more than forty megabytes. In an embodiment, data tracks on each data surface of the platter are spaced at approximately 2,558 tracks per inch and each data track has approximately 36,000 flux changes per inch. An actuator positions a pair of read/write heads on each platter surface using a voice coil motor to position the heads over a cylinder. A magnetic actuator latch attaches to another magnet on the actuator and locks the heads in a parked position at the innermost diameter of the platter. A spindle motor rotates the platter at approximately 5,400 revolutions per minute. A base plate, with a gasketed surface and a raised lip, hermetically seals with a cover to the base plate such that the platter, the actuator, the actuator latch, and the spindle motor are all contained within. The cover carries a breather filter and recirculating air filter. The raised lip on the base plate prevents direct electrical interference from passing between the base plate and the cover.

    摘要翻译: 一种用于计算机系统的硬盘驱动器,包括具有直径约为1/8至1/8英寸的盘片的磁头盘组件,其能够存储40多兆字节。 在一个实施例中,盘的每个数据表面上的数据轨迹以每英寸大约2,558轨道间隔开,并且每个数据轨道每英寸具有约36,000个通量变化。 致动器使用音圈马达在每个盘片表面上定位一对读/写头,以将磁头定位在气缸上。 磁性致动器闩锁附接到致动器上的另一个磁体,并将磁头锁定在盘片的最内部直径处的停放位置。 主轴电机以每分钟约5400转的速度旋转盘片。 具有垫圈表面和凸起唇缘的基板与盖板密封地密封到基板上,使得盘片,致动器,致动器闩锁和主轴马达都被包含在其中。 盖子带有通气过滤器和循环空气过滤器。 基板上的凸起唇缘可防止直接的电气干扰通过基板和盖板之间。

    Management of defect areas in recording media
    2.
    发明授权
    Management of defect areas in recording media 失效
    记录媒体缺陷区的管理

    公开(公告)号:US5075804A

    公开(公告)日:1991-12-24

    申请号:US333066

    申请日:1989-03-31

    摘要: An improved method of managing media defects in disk drives keeps an operating list of the tracks in the disk drive, and for each track enters on the list the number of good sectors (i.e., those free of defects) in that track. Thus the information on the operating list is sufficient for the disk drive microprocessor to avoid use of the defective sectors, each of which is labelled in its header as being defective. This method is compatible with SCSI and other common disk drive interfaces.

    摘要翻译: 管理磁盘驱动器中的媒体缺陷的改进方法保持磁盘驱动器中的轨道的操作列表,并且对于每个轨道在列表中输入该轨道中的良好扇区(即,没有缺陷的那些)的数量。 因此,操作列表上的信息对于磁盘驱动器微处理器来说足以避免使用缺陷扇区,其中的缺陷扇区在其标题中被标记为有缺陷。 此方法与SCSI和其他通用磁盘驱动器接口兼容。