EP 1927263 B1 20101103 - CAPACITIVE SOUND TRANSDUCER HAVING A PERFORATED ATTENUATION DISC
Title (en)
CAPACITIVE SOUND TRANSDUCER HAVING A PERFORATED ATTENUATION DISC
Title (de)
KAPAZITIVER SCHALLWANDLER MIT PERFORIERTER DÄMPFUNGSSCHEIBE
Title (fr)
TRANSDUCTEUR ACOUSTIQUE CAPACITIF AYANT UN DISQUE D'AMORTISSEMENT PERFORE
Publication
Application
Priority
- EP 2006008865 W 20060912
- DE 102005043664 A 20050914
Abstract (en)
[origin: WO2007031270A1] The invention relates to a capacitive sound transducer and a capacitor microphone having such a sound transducer. The sound transducer comprises a diaphragm (3) and a counterelectrode (1), which is arranged at a short distance from the diaphragm (3) and has a first perforation (2). In order to attenuate natural oscillations of the diaphragm (3) at high frequencies, a capacitive sound transducer is proposed in which a sound-permeable attenuation disc (7) is arranged at a short distance from the diaphragm (3) and opposite the counterelectrode (1), which attenuation disc has a second perforation (8). In addition, in this case the first perforation (2) and the second perforation are arranged such that they are offset with respect to one another.
IPC 8 full level
H04R 19/01 (2006.01); H04R 1/38 (2006.01)
CPC (source: EP US)
H04R 1/38 (2013.01 - EP US); H04R 19/016 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 2007031270 A1 20070322; CA 2622035 A1 20070322; CA 2622035 C 20140114; DE 102005043664 A1 20070426; DE 102005043664 B4 20110622; DE 502006008246 D1 20101216; EP 1927263 A1 20080604; EP 1927263 B1 20101103; JP 2009508419 A 20090226; JP 4966309 B2 20120704; US 2010061572 A1 20100311; US 8126168 B2 20120228
DOCDB simple family (application)
EP 2006008865 W 20060912; CA 2622035 A 20060912; DE 102005043664 A 20050914; DE 502006008246 T 20060912; EP 06805695 A 20060912; JP 2008530404 A 20060912; US 99202506 A 20060912