EP 3381199 B1 20220706 - ELECTRODYNAMIC SOUND TRANSDUCER
Title (en)
ELECTRODYNAMIC SOUND TRANSDUCER
Title (de)
ELEKTRODYNAMISCHER SCHALLWANDLER
Title (fr)
TRANSDUCTEUR ACOUSTIQUE ÉLECTRODYNAMIQUE
Publication
Application
Priority
- DE 102015120637 A 20151127
- EP 2016078559 W 20161123
Abstract (en)
[origin: WO2017089401A1] The invention relates to an electrodynamic sound transducer comprising a chassis (130), a membrane (110) with a hole (150) in the center of the membrane (110), a moving coil (120), a magnetic system (140) and a resonator (200) which is placed in the hole (150) in the center of the membrane.
IPC 8 full level
H04R 9/06 (2006.01); H04R 7/12 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 1/28 (2006.01); H04R 5/033 (2006.01)
CPC (source: EP US)
H04R 1/1075 (2013.01 - US); H04R 7/12 (2013.01 - EP US); H04R 7/18 (2013.01 - EP US); H04R 9/02 (2013.01 - EP US); H04R 9/025 (2013.01 - US); H04R 9/06 (2013.01 - EP US); H04R 1/2811 (2013.01 - EP US); H04R 5/033 (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)
WO 2017089401 A1 20170601; CN 108293160 A 20180717; CN 108293160 B 20200403; DE 102015120637 A1 20170614; EP 3381199 A1 20181003; EP 3381199 B1 20220706; US 10721567 B2 20200721; US 2018332401 A1 20181115
DOCDB simple family (application)
EP 2016078559 W 20161123; CN 201680069416 A 20161123; DE 102015120637 A 20151127; EP 16798793 A 20161123; US 201615778860 A 20161123