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Free fall detection device

  • US 20060236761A1
  • Filed: 02/17/2006
  • Published: 10/26/2006
  • Est. Priority Date: 04/22/2005
  • Status: Active Grant
First Claim
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1. A free fall detection device comprising:

  • an acceleration detection unit installed in the device to detect an acceleration of the device; and

    a rotation decision unit to detect a fall accompanied by a rotation of the device from a waveform of the acceleration detected by the acceleration detection unit.

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