NOISE REDUCING SOUND REPRODUCTION SYSTEM

Patent №

US 9,613,612

Granted

2017-04-04

Filed 2012

Owner

AKG ACOUSTICS GMBH

Lab

AI components

1

planning

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

13557869

A noise reducing sound reproduction system and method is disclosed, in which an input signal is supplied to a loudspeaker by which it is acoustically radiated. The signal radiated by the loudspeaker is received by a microphone that is acoustically coupled to the loudspeaker via a secondary path and that provides a microphone output signal. The microphone output signal may be subtracted from a useful-signal to generate a filter input signal. The filter input signal may be filtered in an active noise reduction filter to generate an error signal. The useful-signal may be subtracted from the error signal to generate the loudspeaker input signal, and the useful-signal may be filtered by one or more low-pass filters prior to subtraction from the microphone output signal.

PlanningG10K 11/17827G10K 11/17854G10K 11/17861G10K 11/17875G10K 11/17885G10K 2210/32272

AI classification

Planning0.77
Speech0.43
Machine learning0.04
Vision0.00
Evolutionary computation0.00
Natural language0.00
AI hardware0.00
Knowledge representation0.00

Ownership

AKG ACOUSTICS GMBH

assignment · 289900593

Assignors

PERKMANN, MICHAEL, TIEFENTHALER, PETER

On an employer assignment, the assignors are typically the inventors.

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