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. 22, 2021
Filed:
Jun. 28, 2019
Bose Corporation, Framingham, MA (US);
Cristian M. Hera, Lancaster, MA (US);
Elie Bou Daher, Marlborough, MA (US);
Tobe Z. Barksdale, Bolton, MA (US);
Vigneish Kathavarayan, Marlborough, MA (US);
Ankita D. Jain, Westborough, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
An audio system, including an echo canceler being configured to receive a first reference signal and a microphone signal, and to minimize an echo signal of the microphone signal, according to the first reference signal, the echo signal being a component of the microphone signal correlated to the first reference signal, to produce a residual signal; a post filter configured to receive a second reference signal and the residual signal, and to suppress at least one residual component correlated to the second reference signal, according to the second reference signal, to produce an estimated voice signal, wherein the first reference signal is received from a first location of an audio processing chain and the second reference signal is received from a second location of the audio processing chain, the first location and the second location being separated by at least one audio processing module of the audio processing chain.