EP 1318692 A1 20030611 - Headphone
Title (en)
Headphone
Title (de)
Kopfhörer
Title (fr)
Casque d'écoute
Publication
Application
Priority
EP 01310185 A 20011205
Abstract (en)
The present invention relates to a headphone with two ear cups each of which includes a loudspeaker or a plurality of multichannel speakers. Each speaker has its own individual sound chamber. In accordance with the feature of the speakers, they are installed at the front or rear sides of the individual sound chambers. Accordingly, each speaker is arranged inside the ear cup at different places or angles, thereby creating a clear sound field, protecting against the mixture of the sound waves and reducing the distortion. Beside, a well-distributed sound pressure is formed inside each individual sound chamber. Again, the surround sound effect is enhanced to achieve the original sound quality with high fidelity. <IMAGE>
IPC 1-7
IPC 8 full level
H04R 5/033 (2006.01)
CPC (source: EP)
H04R 1/1075 (2013.01); H04R 5/033 (2013.01); H04R 1/1008 (2013.01); H04R 1/26 (2013.01); H04R 2205/022 (2013.01)
Citation (search report)
- [X] US 6263085 B1 20010717 - WEFFER SERGIO W [US]
- [X] US 3927262 A 19751216 - GOECKEL HELMUT
- [X] EP 0705053 A2 19960403 - MARIKON RESOURCES INC [US]
- [X] US 3984885 A 19761012 - YOSHIMURA HISASHI, et al
- [A] US 3984636 A 19761005 - TURNER JACOB C, et al
- [A] DE 2345850 A1 19750320 - NECKARELZ MIKROFONBAU
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01310185 A 20011205