EP 3174311 A4 20180228 - COMPOSITE SPEAKER DEVICE
Title (en)
COMPOSITE SPEAKER DEVICE
Title (de)
ZUSAMMENGESETZTE LAUTSPRECHERVORRICHTUNG
Title (fr)
DISPOSITIF DE HAUT-PARLEUR COMPOSITE
Publication
Application
Priority
JP 2014069754 W 20140725
Abstract (en)
[origin: EP3174311A1] A composite speaker device capable of restraining a disturbance in sound radiation characteristics caused by propagation of a sound from a tweeter unit to a woofer unit is provided. A composite speaker device (1) includes a first speaker unit (10,16) having a first diaphragm (11,16a), a second speaker unit (20,26) which is installed in a sound radiation direction (D1) of the first diaphragm (11,16a) and has a second diaphragm (20,26a) with a diameter smaller than that of the first diaphragm (11,16a), and a sound absorbing material (30,35,36,51,61) attached to the surface of the first diaphragm (11,16a) in the sound radiation direction (D1) so as to surround the second diaphragm (21,26a).
IPC 8 full level
CPC (source: EP)
H04R 1/24 (2013.01); H04R 7/12 (2013.01); H04R 9/063 (2013.01); H04R 1/2803 (2013.01)
Citation (search report)
- [X] US 2009046876 A1 20090219 - RECK KLAUS [DE]
- [X] DE 19728329 A1 19990204 - SEIKRITT WOLFGANG [DE]
- [AD] JP 2008263257 A 20081030 - MATSUSHITA ELECTRIC IND CO LTD
- See references of WO 2016013122A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3174311 A1 20170531; EP 3174311 A4 20180228; JP 6340427 B2 20180606; JP WO2016013122 A1 20170525; WO 2016013122 A1 20160128
DOCDB simple family (application)
EP 14898320 A 20140725; JP 2014069754 W 20140725; JP 2016535619 A 20140725