EP 0334219 A3 19910403 - CONTACT MICROPHONE
Title (en)
CONTACT MICROPHONE
Publication
Application
Priority
IT 1987388 A 19880321
Abstract (en)
[origin: EP0334219A2] The device for transducing noise generated inside a body, in particular for transducing voice, for the detection outside of the body with a great damping of environmental noise consists essentially of a sheet element operating as a transducer associated with a supporting body adapted to provide a pressure between said sheet element and a contact surface forming a portion of the noise generating body so as to not transduce directly the noise as an acoustic phenomenon through the air but as a vibration affecting said contact surface and generated by the noise itself.
IPC 1-7
IPC 8 full level
H04R 1/46 (2006.01)
CPC (source: EP)
H04R 1/46 (2013.01)
Citation (search report)
- [X] DE 3023155 A1 19820107 - TELEMIT ELECTRONIC GMBH [DE]
- [X] EP 0201421 A1 19861112 - SILEC LIAISONS ELEC [FR]
- [X] US 4607383 A 19860819 - INGALLS ROBERT [US]
- [A] US 4591668 A 19860527 - IWATA KEISUKE [JP]
- [A] US 4013992 A 19770322 - DEWBERRY LARRY F, et al
- [A] FR 2448817 A1 19800905 - KAUFFMANN PAULETTE
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0334219 A2 19890927; EP 0334219 A3 19910403; AU 3156389 A 19890921; BR 8901314 A 19891107; IL 89655 A0 19890928; IT 1218059 B 19900412; IT 8819873 A0 19880321
DOCDB simple family (application)
EP 89104754 A 19890316; AU 3156389 A 19890321; BR 8901314 A 19890321; IL 8965589 A 19890317; IT 1987388 A 19880321