EP 0864246 A1 19980916 - ELECTROSTATIC LOUDSPEAKER
Title (en)
ELECTROSTATIC LOUDSPEAKER
Title (de)
ELEKTROSTATISCHER LAUTSPRECHER
Title (fr)
HAUT-PARLEUR ELECTROSTATIQUE
Publication
Application
Priority
- SE 9601675 W 19961217
- SE 9504600 A 19951222
Abstract (en)
[origin: WO9724013A1] The present invention concerns an electrostatic loudspeaker in which the membranes and stators have charges of the same polarity. It is hereby possible for great forces to work in the loudspeaker without causing a risk for sparking-over between stator and membrane. A loudspeaker according to the invention has two membranes (19, 20), each having a corresponding stator (2, 9) shaped as a grid or the like made from electrically conductive material. The two membranes are parallel to each other and joined together by a firm, hard or stiff material (6). Membranes (19, 20) and stators (2, 9) of a pair always have the same potential and repel each other with a force which varies when the potential varies.
IPC 1-7
IPC 8 full level
H04R 19/02 (2006.01)
CPC (source: EP KR)
H04R 19/02 (2013.01 - EP KR)
Citation (search report)
See references of WO 9724013A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9724013 A1 19970703; AU 1217597 A 19970717; EP 0864246 A1 19980916; JP 2000505256 A 20000425; KR 19990076660 A 19991015; NO 982800 D0 19980618; NO 982800 L 19980618; SE 505752 C2 19971006; SE 9504600 D0 19951222; SE 9504600 L 19970623
DOCDB simple family (application)
SE 9601675 W 19961217; AU 1217597 A 19961217; EP 96943442 A 19961217; JP 52356997 A 19961217; KR 19980704771 A 19980622; NO 982800 A 19980618; SE 9504600 A 19951222