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:
Feb. 14, 2006
Filed:
Dec. 17, 2003
Alfred Permuy, Rueil Malmaison, FR;
Joël Millet, Montalieu-Vercieu, FR;
Alfred Permuy, Rueil Malmaison, FR;
Joël Millet, Montalieu-Vercieu, FR;
Metravib R.D.S., Limonest, FR;
Abstract
A method of detecting and locating noise sources each emitting respective signals Swith j=1 to M, detection being provided by a sound wave or vibration sensors each delivering a respective time-varying electrical signal swith i in the range 1 to N, wherein the method steps include: (a) taking the time-varying electrical signals delivered by the sensors, each signal s(t) delivered by a sensor being the sum of the signals Semitted by the noise sources; (b) amplifying and filtering the time-varying electrical signals as taken; (c) digitizing the electrical signals; (d) calculating a functional; and (e) minimizing the functional relative to the vectors nfor j=1 to M so as to determine the directions of vector nof the noise sources.