EP 1083770 A3 20051207 - Acoustic transducer
Title (en)
Acoustic transducer
Title (de)
Schallwandler
Title (fr)
Transducteur acoustique
Publication
Application
Priority
DE 19943084 A 19990909
Abstract (en)
[origin: EP1083770A2] A multi-resonance sound panel vibrating on a bending wave principle acts as an element for radiating or picking up sound. This panel is unsupported with low absorbency and fitted with fastening elements in a frame, so that it can be stimulated with bending waves reflected many times. A driver device or converter causes the panel to vibrate or picks up the panel's vibrations.
IPC 1-7
IPC 8 full level
H04R 7/04 (2006.01)
CPC (source: EP)
H04R 7/045 (2013.01)
Citation (search report)
- [X] WO 9709698 A1 19970313 - VERITY GROUP PLC [GB], et al
- [A] DE 3832616 A1 19900329 - ELECTRONIC WERKE DEUTSCHLAND [DE]
- [A] DE 2612450 A1 19771006 - REDITUNE THORDSEN GMBH & CO
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1083770 A2 20010314; EP 1083770 A3 20051207; DE 19943084 A1 20010405
DOCDB simple family (application)
EP 00117691 A 20000817; DE 19943084 A 19990909