Patent · US Expired

Audio playback apparatus

US6151580A · kind A · utility

4Cited by

4References

20Claims

0Family size

Assignee

Micronas Intermetall GmbH · DE

Inventors

Dieter Bächer · Waldkirch, DE
Juergen Becher · Emmendingen, DE
Juergen Meiner · Glückstadt, DE

Key dates

Filing date	Feb 17, 1999
Grant date	Nov 21, 2000
Priority date	—
Expiry date	Feb 17, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG11B20/00007
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An audio playback apparatus for an input data stream (d0) delivered by an audio data source (1) in a standardized data format (F1) is disclosed comprising an input decoder (2) for forming a first data stream (d1), which contains the audio information and is separated by means of an output decoder (5) into its audio signal components (L, R). In addition to the first data stream (d1), the input decoder (2) generates a second data stream (d2) which corresponds to the data contained in the data field (D1) of the standardized data format (F1), and which is fed to an additional decoder (3) that detects a second data format (F2) possibly contained in the second data stream (d2) and passes the audio information of the second data format (F2) as a third data stream (d3) to the output decoder (5). Upon detection of the second data format (F2), the additional decoder (3) provides a detection signal (dz) to the control unit (4) which, in response to this detection signal (dz), sets the output decoder (5) to the processing of the first or third data stream (d1, d3).

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