EP 1646263 A2 20060412 - Coaxial loudspeaker with waveform diaphragm
Title (en)
Coaxial loudspeaker with waveform diaphragm
Title (de)
Koaxiallautsprecher mit wellenförmiger Membran
Title (fr)
Haut-parleur coaxial avec membrane de forme ondulée
Publication
Application
Priority
DE 202004015635 U 20041007
Abstract (en)
The loud speaker has a wave shaped membrane (12) in front of a closed rear chamber in an oscillation system with at least one high energy permanent magnet, a front plate (16) and a coil arrangement which excites the magnet. The loud speaker also has a plate shaped axially magnetized magnetic element (10). The front plate is arranged in front of the membrane and has slits formed in it.
Abstract (de)
Koaxiallautsprecher mit wellenförmiger Membranfolie vor einer geschlossenen, rückseitigen Kammer in einem Schwingsystem mit mindestens einem energiereichen Dauermagneten, einer Frontplatte und einer den Dauermagneten erregenden Spulenanordnung, mit einem plattenförmigen, axial magnetisierten Magnetelement, und Schlitzen (26) in der vorderseitigen, vor der Membranfolie (12) angeordneten Frontplatte.
IPC 8 full level
CPC (source: EP)
H04R 1/24 (2013.01); H04R 9/025 (2013.01)
Citation (applicant)
- JP S5575398 A 19800606 - VICTOR COMPANY OF JAPAN
- US 2004047478 A1 20040311 - COMBEST CHRISTOPHER [US]
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
DOCDB simple family (publication)
EP 1646263 A2 20060412; EP 1646263 A3 20080813; EP 1646263 B1 20100721; AT E475271 T1 20100815; DE 202004015635 U1 20041202; DE 502005009938 D1 20100902
DOCDB simple family (application)
EP 05020885 A 20050926; AT 05020885 T 20050926; DE 202004015635 U 20041007; DE 502005009938 T 20050926