EP 2025198 A1 20090218 - DOME LOUDSPEAKER
Title (en)
DOME LOUDSPEAKER
Title (de)
KALOTTEN-LAUTSPRECHER
Title (fr)
HAUT-PARLEUR À CALOTTE
Publication
Application
Priority
- EP 2007054245 W 20070502
- DE 102006021552 A 20060508
Abstract (en)
[origin: WO2007128748A1] A dome loudspeaker (100) has a dome diaphragm (10), a moving coil (12) and a magnet. To improve the sound quality of the dome loudspeaker (100), the magnet is a disc magnet (11) and the dome diaphragm (10) is split into an inner region (13) and an outer region (14).
IPC 8 full level
H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP KR US)
H04R 7/127 (2013.01 - EP KR US); H04R 9/027 (2013.01 - EP KR US); H04R 9/06 (2013.01 - EP KR US); H04R 2400/11 (2013.01 - KR)
Citation (search report)
See references of WO 2007128748A1
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 MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DE 102006021552 A1 20071115; CN 101438601 A 20090520; EP 2025198 A1 20090218; JP 2009536481 A 20091008; KR 20090026749 A 20090313; MX 2008014049 A 20081114; US 2010014704 A1 20100121; WO 2007128748 A1 20071115
DOCDB simple family (application)
DE 102006021552 A 20060508; CN 200780016530 A 20070502; EP 07728699 A 20070502; EP 2007054245 W 20070502; JP 2009508334 A 20070502; KR 20087027322 A 20081107; MX 2008014049 A 20070502; US 29948507 A 20070502