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Alarm device for mobile phone

  • US 20070298759A1
  • Filed: 06/30/2006
  • Published: 12/27/2007
  • Est. Priority Date: 06/22/2006
  • Status: Abandoned Application
First Claim
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1. An alarm device for a mobile phone, the mobile phone having a transmitter for transmitting a signal to a base station thereby establishing a connection therebetween, the signal containing a subscriber identification module number associated with the mobile phone, the alarm device comprising:

  • a receiver configured for receiving the signal transmitted from the transmitter of the mobile phone only if the receiver is located within a predetermined distance from the mobile phone;

    an alarm unit configured for generating an alarm signal;

    a timing circuit configured for measuring a predetermined time duration and triggering the alarm unit upon elapse of the predetermined time duration; and

    a microprocessor configured for prestoring a subscriber identification module number therein, checking if the mobile phone identification number contained in the signal received by the receiver is identical with the prestored subscriber identification module number, and resetting the predetermined time duration of the timing circuit if the mobile phone identification number contained in the signal received by the receiver is identical with the prestored subscriber identification module number.

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