Prozessor für einen FM-Signalempfänger und Verarbeitungsverfahren

Details

Veröffentlichungs-Nr.

EP2615739

Aktenzeichen

EP12151208

Anmeldetag

16. Januar 2012

Veröffentlichung

17. Juni 2015

Erteilung

17. Juni 2015

Rechtsraum

EP

IPC

H04B1/16H04H40/72

Abstract

A processing unit for processing a multi-channel audio signal has a delay element (40) for delaying an FM sum signal (sum) and a converter arrangement (T) for converting an FM difference signal (diff) and a noise signal (diffnoise) to the frequency domain. Frequency-based noise suppression is used to derive a de-noised frequency-domain difference signal using a gain function which is limited to a maximal and a minimal value. This is then converted to the time domain, and the first and second audio signals are calculated from a delayed sum signal (sum2) and the de-noised time domain difference signal (diff2).

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete