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. 02, 2024
Filed:
Jan. 14, 2020
Faurecia Creo Ab, Linköping, SE;
Nicolas Jean Pignier, Stockholm, SE;
Faurecia Creo AB, Linkoping, SE;
Abstract
A method and a system for creating a plurality of sound zones within an acoustic cavity is provided. The method comprises: providing a plurality of actuators within the acoustic cavity, each for generating a respective acoustic output in response to a respective drive signal, providing, for each of the plurality of actuators, an adaptive filter for receiving a respective input signal, and generating a respective output signal, providing, for each of the adaptive filters, at least one filter coefficient, providing a plurality of error sensors within the acoustic cavity, each for generating a respective error signal e, representing a respective sound detected by the respective error sensor, providing an audio data signal x(n) for generating a desired sound in a desired sound zone of the plurality of sound zones, determining, for the desired sound zone, a set of actuator generation coefficients kg, a set of actuator exclusion coefficients ke, wherein k refers to a kactuator, k=1, 2, 3 . . . , and a set of sensor weighting coefficients mewherein m refers to a merror sensor, m=1, 2, 3.