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Disk drive implementing hysteresis for primary shock detector based on a more sensitive secondary shock detector
Disk drive implementing hysteresis for primary shock detector based on a more sensitive secondary shock detector
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机译:磁盘驱动器基于更灵敏的次级冲击检测器为初级冲击检测器实现磁滞
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摘要
A disk drive is disclosed comprising a head actuated over a disk, and control circuitry comprising a first shock detector and a second shock detector. A first number of shock events is detected based on the first shock detector, and when the first number of shock events exceeds an upper event threshold, a sensitivity of the first shock detector is decreased. After decreasing the sensitivity of the first shock detector, a second number of shock events is detected based on the second shock detector operating at a higher sensitivity than the first shock detector. When the second number of shock events falls below a lower event threshold, the sensitivity of the first shock detector is increased.
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