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:
Oct. 07, 2003
Filed:
Feb. 02, 2001
Edward J. Gillis, South Lyon, MI (US);
Dusan V. Progovac, Grosse Pointe, MI (US);
Stephen R. W. Cooper, Fowlerville, MI (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
An intrusion detection system that differentiates between a vehicle intrusion event and a non-intrusion event includes transmitter ( ) for transmitting a continuous wave signal that is reflected of surfaces within the vehicle's interior and/or a moving object (i.e., an intruder). The associated reflected signals subsequently return to a receiver ( ). An ECU ( ) demodulates the return signal into frequency and amplitude components. The ECU ( ) further determines a waveform envelope of the demodulated return signals and monitors the envelope waveform during time windows to determine whether their corresponding envelope waveform is indicative of an intrusion event or an non-intrusion event. When an intrusion event is detected, the ECU ( ) outputs a control signal to actuate an alarm ( ).