EP 3469812 B1 20200819 - ELECTRODYNAMIC BROAD BAND TRANSDUCER FOR AUDIO HEADPHONE AND RESPECTIVE AUDIO HEADPHONE
Title (en)
ELECTRODYNAMIC BROAD BAND TRANSDUCER FOR AUDIO HEADPHONE AND RESPECTIVE AUDIO HEADPHONE
Title (de)
ELEKTRODYNAMISCHER BREITBANDWANDLER FÜR AUDIOKOPFHÖRER UND ENTSPRECHENDER AUDIOKOPFHÖRER
Title (fr)
TRANSDUCTEUR ELECTRODYNAMIQUE LARGE BANDE POUR CASQUE AUDIO ET CASQUE AUDIO ASSOCIE
Publication
Application
Priority
- FR 1655416 A 20160613
- EP 2017064332 W 20170613
Abstract (en)
[origin: WO2017216126A1] The invention relates to a broadband electrodynamic transducer (10) for headphones, said transducer (10) comprising: - a magnetic motor (11) designed to generate a magnetic field; - a coil (12) that is disposed in the air gap (13) of the magnetic motor (11) and can move translationally under the effect of the magnetic field; and - a membrane (14) that is connected to the coil (12) in such a way as to convert the translational movement of the coil (12) into an acoustic wave; - the transducer (10) comprising a self-supporting coil (12) that is glued to the membrane (14), the membrane (14) having a Young's modulus of more than 40 GPa.
IPC 8 full level
H04R 7/12 (2006.01); H04R 5/033 (2006.01); H04R 7/20 (2006.01); H04R 9/04 (2006.01)
CPC (source: EP US)
H04R 1/10 (2013.01 - US); H04R 7/12 (2013.01 - EP US); H04R 9/045 (2013.01 - EP US); H04R 5/033 (2013.01 - EP US); H04R 7/20 (2013.01 - EP US); H04R 2307/027 (2013.01 - EP US)
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 3052624 A1 20171215; FR 3052624 B1 20191108; CN 109314823 A 20190205; CN 109314823 B 20210528; EP 3469812 A1 20190417; EP 3469812 B1 20200819; US 10932026 B2 20210223; US 2019306605 A1 20191003; WO 2017216126 A1 20171221
DOCDB simple family (application)
FR 1655416 A 20160613; CN 201780035866 A 20170613; EP 17729135 A 20170613; EP 2017064332 W 20170613; US 201716307575 A 20170613