EP 1341394 A1 20030903 - Electronic audio signal processing device
Title (en)
Electronic audio signal processing device
Title (de)
Elektronische Vorrichtung zur Verarbeitung eines Audioisignals
Title (fr)
Dispositif électronique de traitement d'un signal audio
Publication
Application
Priority
EP 02290472 A 20020227
Abstract (en)
An electronic audio signal processing device comprises a first DAC (4) for converting a first digital audio signal into an analog signal, first and second output terminals (11, 12) for outputting said analog signal, a detector (10) for detecting whether a sound generating device is connected to the first output terminal (11) or not, a control unit (9) for setting a characteristic of the analog signal to a predetermined value according to whether a sound generating device is detected at the first output terminal (11) or not, and a switch (8) for disabling output of the analog signal by the second output terminal (12) when a sound output device is detected to be connected to the first output terminal (11). <IMAGE>
IPC 1-7
IPC 8 full level
H04R 3/00 (2006.01); H04S 3/00 (2006.01); H04R 3/12 (2006.01)
CPC (source: EP)
H04R 3/00 (2013.01); H04S 3/00 (2013.01); H04R 3/12 (2013.01)
Citation (search report)
- [A] EP 0659029 A2 19950621 - GRUNDIG EMV [DE]
- [A] US 5161198 A 19921103 - NOBLE SCOTT W [US]
- [AD] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 02290472 A 20020227