SYSTEM FOR DETECTING THAT A USER HAS GONE AWAY FROM HIS OR HER OWN MOBILE DEVICE

摘要

A system for detecting that a user has gone away from his or her own mobile device comprises a mobile device (20) and a device (10) that may be carried or worn by a user. The mobile device (20) comprises an electronic circuit (204), for handling the mobile communication, supplied by a battery (206). The system comprises a transmitter circuit (202) coupled to the mobile device (20), supplied by the battery (206) of the mobile device (20). The transmitter circuit (202) periodically transmits a predetermined signal. The system, further comprises a receiver circuit (102) integrated in the device (10), and configured for monitoring transmission of the transmitter circuit (202) for detecting the presence or absence of the predetermined signal and, in the case where the absence of the predetermined signal is detected, generating an alarm signal. Preferably, the system comprises a power supply (40) with two cables, in such a way as to recharge simultaneously the battery (106) of the device (10) and the battery (206) of the mobile device (20).

主权项

1. A system for detecting that a user has gone away from his or her own mobile device, comprising a mobile device and a device that may be carried by said user, wherein said mobile device comprises an electronic circuit that handles the mobile communication of said mobile device, wherein said electronic circuit is supplied by a battery of said mobile device, said system being characterized in that it comprises:
a transmitter circuit coupled to said mobile device, wherein said transmitter circuit is supplied by said battery of said mobile device, and wherein said transmitter circuit periodically transmits a predetermined signal; and a receiver circuit integrated in said device, wherein said receiver circuit is configured for: monitoring transmission of said transmitter circuit and detecting the presence or absence of said predetermined signal; and in the case where the absence of said predetermined signal is detected, generating an alarm signal.