EP 0663136 B1 19970423 - DIFFUSING VOLUME ELECTROACOUSTIC TRANSDUCER
Title (en)
DIFFUSING VOLUME ELECTROACOUSTIC TRANSDUCER
Title (de)
ELEKTROAKUSTISCHER WANDLER MIT SCHALLABSTRAHLENDEM VOLUMEN
Title (fr)
TRANSDUCTEUR ELECTRO-ACOUSTIQUE A VOLUME DIFFUSANT
Publication
Application
Priority
- FR 9300958 W 19930928
- FR 9211636 A 19920928
- FR 9311701 A 19930924
Abstract (en)
[origin: US6111972A] An electroacoustic transducer includes a low density diffusing volume which supports on its periphery at least one electrically conductive circuit through which an electric signal representative of the signal to be emitted passes. Magnets are mechanically connected to the diffusing volume's periphery. The magnets provide a magnetic field whose field lines surround the conductive circuits which is positioned on the diffusing volume's periphery. Several embodiments are presented, as well as several modes of electrical connections between the circuit emitting the electrical signals and the conductive circuits.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H04R 7/00 (2013.01 - EP US); H04R 9/063 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6111972 A 20000829; AT E152313 T1 19970515; CA 2145629 A1 19940414; CA 2145629 C 20001128; DE 69310184 D1 19970528; DE 69310184 T2 19971127; EP 0663136 A1 19950719; EP 0663136 B1 19970423; FR 2696611 A1 19940408; WO 9408435 A1 19940414
DOCDB simple family (application)
US 96656397 A 19971110; AT 93922565 T 19930928; CA 2145629 A 19930928; DE 69310184 T 19930928; EP 93922565 A 19930928; FR 9300958 W 19930928; FR 9311701 A 19930924