Patent ID: 6771168
Filing Date: 2004-08-03
Classification: B60R

Abstract:
A two part system for disabling the engine of a motor vehicle in the event of non-authorized use of said vehicle, said system comprising: a first part comprising: a controller in electrical connection with the engine of said vehicle and having a means to disable said engine, said controller having a means for propagating a radio frequency interrogating signal on a periodic basis and within a limited area; said area being defined in terms of the distance from said controller; a second part comprising: a radio frequency transmitting and receiving device for sending out a radio frequency response signal in response to said interrogating signal and of size suitable for concealment on a human; said controller having a means for receiving said response signal and for determining whether said response signal is an authorized signal, said controller having a means for disabling said engine in the event that said signal is not an authorized signal; wherein said limited area is defined by a distance from said controller and said distance about 30 feet.