Alarm device for mobile phone
First Claim
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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Accused Products
Abstract
An alarm device for a mobile phone includes a receiver for receiving a signal transmitted from a transmitter of a mobile phone only if the receiver is located within a predetermined distance from the mobile phone, an alarm unit for generating an alarm signal, a timing circuit for measuring a predetermined time duration and triggering the alarm unit upon elapse of the predetermined time duration, and a microprocessor 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.
5 Citations
13 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A method for preventing loss or theft of 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 method comprising the steps of:
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prestoring a subscriber identification module number therein; measuring a predetermined time duration; receiving the signal transmitted from the transmitter of the mobile phone only if within a predetermined distance from the mobile phone; checking if the mobile phone identification number contained in the signal received is identical with the prestored subscriber identification module number; resetting the predetermined time duration if the mobile phone identification number contained in the signal received is identical with the prestored subscriber identification module number; and generating an alarm signal upon elapse of the predetermined time duration. - View Dependent Claims (7, 8)
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9. A mobile phone set comprising:
a mobile phone including 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, and an alarm device including; a receiver configured for receiving the signal transmitted from the transmitter of the mobile phone, wherein the signal is receivable by the receiver within a predetermined, limited 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. - View Dependent Claims (10, 11, 12, 13)
Specification