Global Patent Index - EP 1343353 B1

EP 1343353 B1 20041215 - A capacitive transducer

Title (en)

A capacitive transducer

Title (de)

Kapazitiver Wandler

Title (fr)

Transducteur capacitif

Publication

EP 1343353 B1 20041215 (EN)

Application

EP 03076316 A 20011019

Priority

  • DK PA200001567 A 20001020
  • EP 01978227 A 20011019
  • US 24567200 P 20001106

Abstract (en)

[origin: EP1343353A1] A capacitive transducer, in particular a condenser microphone, with a ring-shaped member (12) and a diaphragm (11) secured to the ring-shaped member (12). A disc-shaped member (17) is secured in the opening of the ring-shaped member (12) and in parallel relationship to the diaphragm (11). The disc-shaped member (17) has an electrically conductive portion (19) spaced from the ring-shaped member (12) and facing the diaphragm (11) in a predetermined distance therefrom, whereby the diaphragm (11) and the electrically conductive portion (19) on the disc-shaped member (17) form an electrical capacitor. The second side of the disc-shaped member (17) and the contact member are directly accessible. Also, the ring-shaped member (12) has, outside the outer periphery of the diaphragm (11), a free surface (14) extending transversally to the axis of the ring-shaped member (12) for mounting in a microphone housing with the diaphragm flush with the front end of the microphone or slightly recessed relative to the front end. <IMAGE>

IPC 1-7

H04R 19/00

IPC 8 full level

H04R 19/04 (2006.01)

CPC (source: EP)

H04R 19/04 (2013.01)

Designated contracting state (EPC)

DE DK FR GB

DOCDB simple family (publication)

EP 1343353 A1 20030910; EP 1343353 B1 20041215; DK 1329129 T3 20050425; DK 1343353 T3 20050425

DOCDB simple family (application)

EP 03076316 A 20011019; DK 01978227 T 20011019; DK 03076316 T 20011019