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.
AI classification
Ownership
AKG ACOUSTICS GMBH
assignment · 289900593
Assignors
PERKMANN, MICHAEL, TIEFENTHALER, PETER
On an employer assignment, the assignors are typically the inventors.