Global Patent Index - EP 1318692 A1

EP 1318692 A1 2003-06-11 - Headphone

Title (en)

Headphone

Title (de)

Kopfhörer

Title (fr)

Casque d'écoute

Publication

EP 1318692 A1 (EN)

Application

EP 01310185 A

Priority

EP 01310185 A

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 (main, further and additional classification)

H04R 5/033

IPC 8 full level (invention and additional information)

H04R 5/033 (2006.01)

CPC (invention and additional information)

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)

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

EP 1318692 A1 20030611