Rauschunterdrückungsfilterstruktur, Rauschunterdrückungssystem und Signalverarbeitungsverfahren

Details

Veröffentlichungs-Nr.

EP3486896

Aktenzeichen

EP17202103

Anmeldetag

16. November 2017

Veröffentlichung

23. August 2023

Erteilung

23. August 2023

Rechtsraum

EP

IPC

G10K11/178

Abstract

A noise cancellation filter structure for a noise cancellation enabled audio device, in particular headphone (HP), comprises a noise input for receiving a noise signal (N0) and a filter output for providing a filter output signal (OUT). A first noise filter (CF) produces a first filter signal by filtering the noise signal (N0) and a second noise filter (AF) produces a second filter signal by filtering the noise signal (N0). The second noise filter (AF) has a frequency response with a non-minimum-phase, in particular maximum-phase. A combiner (CMB) is configured to provide the filter output signal (OUT) based on a linear combination of the first filter signal and the second filter signal.

Anmelder

Firma

ams AG

Land

🇦🇹 Österreich

Fachgebiete