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:
Apr. 03, 2007
Filed:
Jun. 08, 2005
Bradley M. Biggs, Plymouth, MN (US);
Bradley M. Biggs, Plymouth, MN (US);
Alliant Techsystems Inc., Edina, MN (US);
Abstract
The present invention is directed to a system and a method for accurately locating a penetrating-type weapon within a shelter for detonation at a desired target site. The method includes reliably and accurately detecting thin layers of a shelter by use of a weapon frequency induced by a vibration in a portion of the weapon. The weapon frequency is detected and at least one harmonic frequency of the weapon frequency is analyzed to determine whether a deceleration threshold event has occurred. In one embodiment, the harmonic frequency may be compared to a target frequency which is associated with the deceleration of the weapon during penetration of a layer of media. In another embodiment multiple weapon frequencies may be detected, analyzed, or compared to detect the penetration of a layer of media.