EP 0775431 B1 20070228 - MULTI-CHANNEL HEADSET WITH CONTROLLED SOUND-EMISSION CHARACTERISTICS
Title (en)
MULTI-CHANNEL HEADSET WITH CONTROLLED SOUND-EMISSION CHARACTERISTICS
Title (de)
MEHRKANALKOPFHÖRER MIT GESTEUERTER ABSTRAHLCHARAKTERISTIK
Title (fr)
CASQUE A PLUSIEURS CANAUX A DIFFUSION MODULEE
Publication
Application
Priority
- DE 9401340 W 19941113
- DE 9317314 U 19931114
- DE 9401089 U 19940123
- DE 9402640 U 19940217
Abstract (en)
[origin: WO9514362A1] The invention concerns a multi-channel headset with at least one acoustic transducer (3) located essentially in the centre of each earpiece (2a). In order to produce an auditory sensation emanating essentially from a point horizontally in front of the listener instead of in the centre of the listener's head, between the two earpieces, as is normally the case, the sound-emission surface of each acoustic transducer (3) is divided into two zones (4, 6) which have different acoustic resistances and are separated from each other by a dividing line (7), the more weakly acoustically damped zone (6) being located mainly below the entrance to the listener's ear while the other zone with greater acoustic damping lies mainly above the entrance to the ear.
IPC 8 full level
H04R 5/033 (2006.01); H04R 1/32 (2006.01); H04R 7/02 (2006.01)
CPC (source: EP)
H04R 1/32 (2013.01); H04R 5/033 (2013.01); H04R 1/1008 (2013.01); H04R 1/1075 (2013.01); H04R 2205/022 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IE IT LI NL
DOCDB simple family (publication)
WO 9514362 A1 19950526; AT E355719 T1 20060315; DE 4498865 D2 19961031; DE 59410449 D1 20070412; EP 0775431 A1 19970528; EP 0775431 B1 20070228
DOCDB simple family (application)
DE 9401340 W 19941113; AT 95900623 T 19941113; DE 4498865 T 19941113; DE 59410449 T 19941113; EP 95900623 A 19941113