A FAIL SAFE TRACKING SYSTEM FOR ELECTRONIC DEVICES CAPABLE OF COMMUNICATING WITH CELLULAR TOWERS

摘要

Systems and apparatus to enable successful tracking of electronic devices having the capability to communicate with cellular towers are described. The circuit of the present specification is divided in two parts and thus installed separately where one part of the present invention is in¬ built into the mother board of the electronic device and the other corresponding part is installed in the cell towers of the cellular communication infrastructure. In one embodiment the system includes an in-built CMOS enabled timer with power backup and transceiver circuit integrated with the electronic device's mother circuit which transmits a SOS to the nearest cell tower. This SOS signal's activation is dependent on a timer circuit which has been kept in a running state set for a stipulated time and is only reset if a predetermined user input is not fed into the electronic device within that stipulated time. The SOS induces the cell tower tracking system to send an activation signal to the electronic device. This AS provides the power required by the power backup circuit for enabling the transceiver circuit to generate a modulated digital identification signal (MDIS). The MDIS signal is unmodulated at the cell tower to isolate the digital identification signal strength (DISS) which is fed to a computerized comparator along with DISS from other nearby tower signal tranceivers (TR)'s to compare and ascertain the relative location of the electronic device based on the relative intensity comparison of the two inputs. The tracking system is also capable of locating the device if it is being moved from one location to another. The circuit is integrated into the electronic device's mother board in such a manner that trying to tamper will render the complete electronic device non-functional.