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1. 发明授权

US5570244A Method and apparatus for controlling assertion of a write inhibit signal using separate threshold values for each of a plurality of recording surfaces 失效
标题翻译：用于使用用于多个记录表面中的每一个的单独的阈值来控制写入禁止信号的断言的方法和装置
公开(公告)号：US5570244A
公开(公告)日：1996-10-29
申请号：US450170
申请日：1995-05-25
申请人： Mark Wiselogel
发明人： Mark Wiselogel
IPC分类号： G11B5/09 , G11B5/00 , G11B19/04 , G11B19/14 , G11B21/08 , G11B21/10 , G11B15/04 , G11B5/127 , G11B5/33
CPC分类号： G11B19/14 , G11B19/04 , G11B5/012 , G11B2005/0016 , G11B5/02
摘要： A method for controlling assertion of a write inhibit signal in a disk drive is described. The disk drive comprises at least one rotating disk having data recording surfaces, and a head for each recording surface. Each head is mounted by an actuator for selective positioning of the head over the respective disk surface. Each disk surface includes data tracks. The method comprises the steps of calculating and storing a write inhibit threshold value for each head in the disk drive, performing a track following operation to determine position of a preselected head relative to a preselected data track, retrieving the write inhibit threshold value for the preselected head, comparing the determined head position to the retrieved write inhibit threshold value and asserting a write inhibit signal upon a certain relationship between the determined head position and the retrieved write inhibit threshold value.
摘要翻译：描述了一种用于控制磁盘驱动器中写入禁止信号的断言的方法。磁盘驱动器包括具有数据记录表面的至少一个旋转盘和用于每个记录表面的头。每个头部由致动器安装，用于将头部选择性地定位在相应的盘表面上。每个磁盘表面都包括数据磁道。该方法包括以下步骤：计算并存储磁盘驱动器中每个磁头的写入禁止阈值，执行跟踪操作以确定预选磁头相对于预选数据磁道的位置，检索预选的写入禁止阈值头，将所确定的头部位置与检索到的写入禁止阈值进行比较，并根据所确定的头部位置与检索到的写入禁止阈值之间的确定关系来确定写入禁止信号。

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