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. 18, 2025
Filed:
Dec. 11, 2020
Centre National DE LA Recherche Scientifique, Paris, FR;
Ecole Nationale Superieure DE Mecanique ET Des Microtechniques (Ensmm), Besançon, FR;
Universite DE Franche-comte, Besançon, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
ECOLE NATIONALE SUPERIEURE DE MECANIQUE ET DES MICROTECHNIQUES (ENSMM), Besançon, FR;
UNIVERSITE DE FRANCHE-COMTE, Besançon, FR;
Abstract
A method and a device for controlling the propagation of acoustic waves in the vicinity of a wall, the method and device implementing a master device for controlling a set Nc of cells primarily made up of a speaker, a set of Nm microphones connected to the speaker, and a control unit, by means of control laws that determine the intensity of the electrical signal that must be sent to each speaker so as to obtain a target determined generalized acoustic impedance for each speaker, such that a fraction of the acoustic waves is absorbed by the membrane of each speaker.