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Electronic apparatus capable of automatically switching notification devices

  • US 6,195,571 B1
  • Filed: 07/31/1997
  • Issued: 02/27/2001
  • Est. Priority Date: 08/02/1996
  • Status: Expired due to Fees
First Claim
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1. An electronic apparatus comprising:

  • first notification means using vibration for notifying users;

    second notification means using sound for notifying users;

    first counting means for counting a first preselected period of time;

    reaction detecting means for detecting a user'"'"'s reaction to a notification;

    movement detecting means for detecting movement of a user; and

    switching means for automatically switching said first and second notification means in accordance with outputs of said reaction detecting means and said movement detecting means appearing within said first period of time, wherein said movement detecting means comprises;

    a vibration detector for detecting vibration;

    an LPF for removing vibration caused by said first notification means from an output of said vibration detector; and

    a vibration detection circuit for identifying the extraneous vibration out of an output of said LPF.

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