Patent ID: 7392013
Filing Date: 2008-06-24
Classification: B60R,H01Q,H04B,H04N,H04W

Abstract:
1. A system for communicating information between a first location within a vehicle and a second location within or very near to the vehicle, wherein the vehicle has a conductive metallic structure defining one or more major compartments, the system comprising: an exciter unit including a first communication equipment and an exciter device that is conductively connected to the metallic structure of the vehicle; a remote unit including a second communication equipment having a probe that is not conductively connected to the metallic structure of the vehicle; said first communication equipment suitable to accept the information at the first location and modulate a signal with the information, wherein said signal has a carrier frequency that is selected to be either below cut-off for evanescent electromagnetic fields or above cut-off for propagating electromagnetic fields; said exciter device suitable to receive said signal from said first communication equipment and conductively inject said signal as a current into the metallic structure of the vehicle such that an electromagnetic field is produced; said second communication equipment suitable to couplingly receive said electromagnetic field from the metallic structure of the vehicle via said probe, demodulate the information from said electromagnetic field, and provide the information at the second location; said second communication equipment also suitable to accept the information at the second location, to modulate said electromagnetic field with the information, and to couplingly transmit said electromagnetic field into the metallic structure of the vehicle via said probe such that said current is generated there in; said exciter device also suitable to conductively extract said signal as said current from the metallic structure of the vehicle and provide said signal to said first communication equipment; and said first communication equipment also suitable to demodulate the information from said signal and provide the information at the first location, thereby providing the ability to communicate the information between the first location and the second location in a wireless manner.