System and method for remotely tripping a switch

A method for remotely stopping a vehicle theft, comprising:

• first transmitting a signal be a transmitter, said signal including a calling code and a predetermined security code;
• first receiving said signal by a central switching unit;
• second transmitting said signal by said central switching unit;
• satellite relaying said signal to a pager unit located in a vehicle;
• second receiving said signal by said pager unit if said calling code corresponds to said pager unit;
• generating a tripping pulse by said pager unit only in response to receiving 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 said vehicle consisting of a voltage step-up circuit for increasing the voltage of said first signal from said low voltage to said higher voltage;
• and
• 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;
• wherein said pager unit is a receive-only digital receiver that receives 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 unit, located in a vehicle, for receiving a wireless communication and for generating a first signal in response to receiving said wireless communication, said wireless communication being transmitted by a transmitter to a central switching unit, said central switching unit transmitting said wireless communication to a satellite, said satellite relaying said wireless communication transmitted from said central switching unit to said pager unit, said wireless communication consisting of a digital data packet, and said wireless communication including a calling code corresponding to said pager unit and a predetermined security code, said first signal being generated by said pager unit in response to receiving said predetermined security code;
• 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 wireless communication prevents said pager unit from generating said first signal;
• and
• wherein said pager unit is a receive-only digital receiver that receives 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 wireless communication including said calling code and said predetermined security code;
• a satellite for receiving and transmitting said wireless communication;
• a pager unit, located in a vehicle, for receiving said wireless communication, said pager unit 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 signal 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 unit is a receive-only digital receiver that receives only low-power short digital data packets and that cannot receive digital and analog voice transmissions;
• and
• wherein the absence of said predetermined security code in said wireless communication prevents said pager unit from generating said first signal.

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 wireless communication including said calling code and said predetermined security code;
• a satellite for receiving and transmitting said wireless communication;
• a pager unit, located in said vehicle, for receiving said wireless communication, said pager unit 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 unit is a receive-only digital receiver that receives only low-power digital data packets and that cannot receive digital and analog voice transmission;
• and
• wherein the absence of said predetermined security code in said wireless communication prevents said pager unit from generating said first signal.