Patent · US Expired

Circuit for decoding an analog audio signal

US6281813A · kind A · utility

47Cited by

2References

6Claims

0Family size

Assignee

Micronas GmbH · DE

Inventors

Matthias Vierthaler · Denzlingen, DE
Martin Winterer · Gundelfingen, DE
Stefan Mueller · Villingen, DE
Thomas Hilpert · Denzlingen, DE
Carsten Noeske · Glottertal, DE

Key dates

Filing date	Jul 9, 1999
Grant date	Aug 28, 2001
Priority date	—
Expiry date	Jul 9, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/8106
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An integrated circuit for decoding an analog audio signal includes a tuner that receives the analog audio signal and provides a sound intercarrier frequency signal. A digital demodulator receives and digitizes the sound intercarrier frequency signal to provide a digitized sound intercarrier frequency signal, and digitally demodulates the digitized sound intercarrier frequency signal to provide a digitized multichannel television sound (MTS) demodulated signal. A digital broadcast television system committee (BTSC) compatible decoder receives and decodes the digitized multichannel television sound (MTS) demodulated signal, and provides a summed (L+R) audio output signal and a difference (L-R) audio output signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.