EP 1689208 A3 20090422 - Headphone with optimised high frequency reproduction
Title (en)
Headphone with optimised high frequency reproduction
Title (de)
Kopfhörer mit optimierter Hochtonwiedergabe
Title (fr)
Casque d'écoute avec reproduction des hautes fréquences optimisée
Publication
Application
Priority
DE 102005005759 A 20050207
Abstract (en)
[origin: EP1689208A2] The headphone has a broadband transducer (4) that is locally arranged in a housing for reproduction of audio signal in an auditoy spectrum. A high sound transducer is arranged for the reproduction of high sound range of the high frequency spectrum. The high sound transducer is arranged in the center of the housing and points to an edge of the broadband transducer. The high sound transducer is connected upstream of a high pass filter.
IPC 8 full level
H04R 5/033 (2006.01)
CPC (source: EP US)
H04R 1/26 (2013.01 - EP US); H04R 5/033 (2013.01 - EP US); H04R 1/1075 (2013.01 - EP US)
Citation (search report)
- [X] US 6263085 B1 20010717 - WEFFER SERGIO W [US]
- [X] US 5761314 A 19980602 - INANAGA KIYOFUMI [JP], et al
- [X] DE 4236765 A1 19930527 - KOENIG FLORIAN [DE]
- [A] DE 10061837 A1 20010920 - KOENIG FLORIAN MEINHARD [DE]
- [A] DE 20009869 U1 20011018 - KOENIG FLORIAN M [DE]
- [A] US 2003103637 A1 20030605 - HUANG JUI-SHU [TW]
- [A] DE 2416042 A1 19741031 - AKG AKUSTISCHE KINO GERAETE
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1689208 A2 20060809; EP 1689208 A3 20090422; DE 102005005759 A1 20060817; JP 2006222962 A 20060824; US 2006188108 A1 20060824
DOCDB simple family (application)
EP 06002173 A 20060202; DE 102005005759 A 20050207; JP 2006029994 A 20060207; US 34842406 A 20060206