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Protection apparatus and method for hard disk drive unit of a portable computer

DC
  • US 6,046,877 A
  • Filed: 04/29/1997
  • Issued: 04/04/2000
  • Est. Priority Date: 02/16/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus for protecting a hard disk structure operational as part of a portable computer, said hard disk structure being of the type having a head flying over a disk surface, comprising:

  • an acceleration sensing device for sensing a state of movement of the computer;

    a microprocessor for controlling the operation of the disk drive structure and for receiving signals from the acceleration sensing device for retracting the head from the proximity of the disk surface in response to said sensing; and

    a head removal apparatus operatively connected with said acceleration sensing device for retracting the head from the proximity of the disk surface in response to said sensing and after a time delay subsequent to initial sensing of a state of movement,wherein said retracting is performed in 30 milliseconds or less.

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