EP 2577989 A1 20130410 - ACOUSTIC LOUDSPEAKER
Title (en)
ACOUSTIC LOUDSPEAKER
Title (de)
AKUSTISCHER LAUTSPRECHER
Title (fr)
HAUT-PARLEUR ACOUSTIQUE
Publication
Application
Priority
- FR 1054386 A 20100604
- FR 2011000330 W 20110603
Abstract (en)
[origin: WO2011151546A1] The invention relates to an acoustic loudspeaker (1) comprising: a magnetic field source (6); a mobile apparatus including a diaphragm (2) and a winding (3) capable of allowing passage of an electrical current representing the sound signal to be generated and of interacting with said magnetic. Said acoustic loudspeaker is characterized in that the mobile apparatus comprises a second winding (20), both terminals of which are connected by an essentially resistive component (21, 22, 23).
IPC 8 full level
CPC (source: EP US)
H04R 3/002 (2013.01 - EP US); H04R 9/06 (2013.01 - EP US); H04R 9/04 (2013.01 - US); H04R 2209/043 (2013.01 - US)
Citation (search report)
See references of WO 2011151546A1
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)
FR 2961053 A1 20111209; FR 2961053 B1 20130412; EP 2577989 A1 20130410; EP 2577989 B1 20140326; US 2013148841 A1 20130613; US 8917898 B2 20141223; WO 2011151546 A1 20111208
DOCDB simple family (application)
FR 1054386 A 20100604; EP 11730722 A 20110603; FR 2011000330 W 20110603; US 201113701307 A 20110603