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. 04, 2016
Filed:
Sep. 12, 2013
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Renault S.a.s., Boulogne Billancourt, FR;
Gerard Chalubert, Voisins le Bretonneux, FR;
Jean-Pierre Nikolovski, Carry-le-Rouet, FR;
Nicolas Guenard, Gif-sur-Yvette, FR;
Olivier Brelaud, Saulx-Marchais, FR;
Commissariat a l'energie atomique et aux energies alternatives, Paris, FR;
RENAULT s.a.s., Boulogne Billancourt, FR;
Abstract
A system for detecting and localizing at least one touch on a touch-sensitive surface of an object includes: at least two separate sources transmitting bulk acoustic waves in the touch-sensitive surface, configured to generate acoustic interference between the transmitted waves; at least one bulk acoustic wave receiver after propagation and interference thereof in the touch-sensitive surface, configured to supply a reception signal based on the acoustic waves received; a mechanism localizing at least one touch on the touch-sensitive surface of the object by comparing certain spectral characteristics of the reception signal to a set of reference spectral characteristics; a mechanism measuring a temperature of the touch-sensitive surface, and a mechanism adapting the spectral characteristics of the reception signal or the reference spectral characteristics by a frequency shift of at least some of the spectral characteristics as a function of the temperature measured.