Global Patent Index - EP 2025198 A1

EP 2025198 A1 2009-02-18 - DOME LOUDSPEAKER

Title (en)

DOME LOUDSPEAKER

Title (de)

KALOTTEN-LAUTSPRECHER

Title (fr)

HAUT-PARLEUR À CALOTTE

Publication

EP 2025198 A1 (DE)

Application

EP 07728699 A

Priority

  • EP 2007054245 W
  • DE 102006021552 A

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 (invention and additional information)

H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01)

CPC (invention and additional information)

H04R 9/06 (2013.01); H04R 7/127 (2013.01); H04R 9/027 (2013.01)

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

EPO simple patent family

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

INPADOC legal status


2011-05-25 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20101201

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081208

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK RS