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:
Jan. 19, 2010
Filed:
Aug. 10, 2005
Ros Kiri Ing, Paris, FR;
Ros Kiri Ing, Paris, FR;
Sensitive Object, Boulogne-Billancourt, FR;
Abstract
Method for locating an impact on a surface (), in which acoustic sensors () pick up acoustic signals s(t) generated by the impact and the impact is located by calculating, for a number of reference points of index j, a validation parameter representative of a function: PROD(ω)=φS(ω) φR(ω)*φS(ω)*φR(ω) . . . φS(ω)*φR(ω) where: φS(ω) and φR(ω)* are complex phases of S(ω) and of R(ω), for i=i, i, . . . , i, indices denoting sensors, S(ω) and R(ω) being the Fourier transform of s(t) and r(t), r(t) being a reference signal corresponding to the sensor i for an impact at the reference point j, p being a non-zero integer no greater than N/2.