System and method for signaling a device at a remote location over a wireless network

A method for remotely stopping a vehicle theft, comprising:

• first transmitting a forward signal by a transmitter, said signal including a calling code and a predetermined security code;
• first receiving said forward signal by a central switching unit;
• second transmitting said forward signal by said central switching unit;
• satellite relaying said forward signal to a pager transceiver located in a vehicle;
• second receiving said forward signal by said pager transceiver if said calling code corresponds to said pager transceiver;
• generating a tripping pulse by said pager transceiver in response 1o response said predetermined security code, said tripping pulse having a low voltage;
• converting said tripping pulse from said low voltage to a higher voltage by a tripping circuit, said tripping circuit being located in the vehicle and consisting of a voltage step-up circuit for increasing the voltage of said first signal from said low voltage to said higher voltage;
• tripping a switch located in said vehicle in response to conversion of said tripping pulse from said low voltage to said higher voltage, thereby disabling said vehicle;
• and
• third transmitting a reverse signal by said pager transceiver, wherein said reverse signal can be satellite relayed to said central switching unit;
• wherein said pager transceiver is a digital transceiver that receives and sends only low-power short digital data packets and that cannot receive digital and analog voice transmissions.

A system for remotely stopping a vehicle theft, consisting essentially of:

• a pager transceiver, located in a vehicle, for receiving a forward wireless communication, for generating a first signal in response to receiving said forward wireless communication, and for transmitting a reverse wireless communication, said forward wireless communication begin transmitted by a transmitter to a central switching unit, said switching unit transmitting said forward wireless communication to a satellite, said satellite relaying said forward wireless communication transmitted from said central switching unit to said pager transceiver, said forward wireless communication and reverse wireless communication consisting of a digital data packet, and said forward wireless communication including a calling code corresponding to said pager transceiver and a predetermined security code, said first signal being generated by said pager transceiver in response to receiving said predetermined security code, wherein said reverse wireless communication can be relayed through said satellite to said central switching unit;
• a tripping circuit, responsive to said first signal and located in said vehicle, for generating a second signal;
• and
• a switch, responsive to said second signal, for disabling said vehicle;
• wherein the absence of said predetermined security code in said forward wireless communication prevents said pager transceiver from generating said first signal;
• and
• wherein said pager transceiver is a digital transceiver that receives and sends only low-power short digital data packets and that cannot receive digital and analog voice transmissions.

A system for remotely stopping a vehicle theft, comprising:

• a transmitter for generating a calling code and a predetermined security code;
• a central switching unit for receiving said calling code and said predetermined security code and for generating a forward wireless communication including said calling code and said predetermined security code;
• a satellite for receiving and transmitting said forward wireless communication;
• a pager transceiver, located in a vehicle, for receiving said forward wireless communication and for transmitting a reverse wireless communication, said pager transceiver being responsive to said calling code and generating a pager signal in response to receiving said predetermined security code, said pager signal having a low voltage;
• a tripping circuit, responsive to said pager sisal and located in said vehicle, for generating a tripping signal, said tripping signal having a higher voltage than said pager signal, said tripping circuit including a voltage step-up circuit for converting the voltage of said pager signal from said low voltage to said higher voltage;
• and
• an actuator, responsive to said tripping signal, for disabling said vehicle;
• wherein said pager transceiver is a digital transceiver that receives and sends only low-power short digital data packets and that cannot receive digital and analog voice transmissions;
• wherein the absence of said predetermined security code in said forward wireless communication prevents said pager transceiver from generating said first signal;
• and
• wherein said reverse wireless communication can be relayed through said satellite to said central switching unit.

A system for remotely signaling a door locking system in a vehicle, said door locking system being located in said vehicle, comprising:

• a transmitter for generating a calling code and a predetermined security code;
• a central switching unit for receiving said calling code and said predetermined security code and for generating a forward wireless communication including said calling code and said predetermined security code;
• a satellite for receiving and transmitting said forward wireless communication;
• a pager transceiver, located in said vehicle, for receiving said forward wireless communication and for transmitting a reverse wireless communication, said pager transceiver being responsive to said calling code and generating a pager signal in response to receiving said predetermined security code;
• a tripping circuit, responsive to said pager signal and located in said vehicle, for generating a tripping signal;
• and
• an actuator, responsive to said tripping signal and located in said vehicle, for locking and unlocking said door locking system in said vehicle;
• wherein said pager transceiver is a digital transceiver that receives and sends only low-power digital data packets and that cannot receive digital and analog voice transmission;
• wherein the absence of said predetermined security code in said forward wireless communication prevents said pager transceiver from generating said first signal;
• and
• wherein said reverse wireless communication can be relayed through said satellite to said central switching unit.