The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2009
Filed:
Jun. 20, 2006
Robert H. Frantz, Oklahoma City, OK (US);
Robert H. Frantz, Oklahoma City, OK (US);
Other;
Abstract
A system and method for detecting concealed cargo, such as explosives contained in a closed vehicle trunk, by characterizing the transfer function between sets of wheels of the vehicle and automatically detecting changes of transfer functions due to changes in mass loading. The system and method contacts a first tire of the vehicle and transduces a signal such as a sweeping acoustic signal into the vehicle, simultaneously collecting the signal transmitted and attenuated through the vehicle to an second tire. The collected signal is analyzed and compared to previous transfer function characterization results to detect significant changes in the transfer function. If a significant change is detected, a system operator is alerted to prompt further preemptive action, such as a full search of the vehicle.