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:
Jun. 11, 2024
Filed:
Oct. 18, 2020
Faurecia Clarion Electronics Europe, Paris, FR;
Cyril Laury, Antony, FR;
Faurecia Clarion Electronics Europe, Paris, FR;
Abstract
A method for processing an electrical signal for an acoustic emission system. The method carried out by the system includes the following steps: a) transmitting a calibration signal to the electroacoustic transducer; b) emitting a sound based on the calibration signal, by the electroacoustic transducer; c) measuring the voltage across the terminals of the load; d) calculating the variation in impedances of the electroacoustic transducer as a function of the variation in frequencies of the calibration signal; e) determining the resonant frequency of the electroacoustic transducer from the variation in calculated impedances; f) selecting a set of acoustic filters in the database based on the determined resonant frequency; and g) applying the set of acoustic filters to the electrical signal in order to process the electrical signal coming from the input.