Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 23, 2010
Patent Application Number
11930142
Date Filed
October 31, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
At least one time-varying signal is applied to a plurality of coil elements in cooperative relationship with and spanning different portions of a vehicle. The coil elements generate an associated plurality of magnetic field components that interact with the vehicle. At least one detection circuit generates a detected signal responsive to signal components from the coil elements so as to provide for detecting a change in a magnetic condition of the vehicle.
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