SE9504600L - Speaker - Google Patents
SpeakerInfo
- Publication number
- SE9504600L SE9504600L SE9504600A SE9504600A SE9504600L SE 9504600 L SE9504600 L SE 9504600L SE 9504600 A SE9504600 A SE 9504600A SE 9504600 A SE9504600 A SE 9504600A SE 9504600 L SE9504600 L SE 9504600L
- Authority
- SE
- Sweden
- Prior art keywords
- membranes
- loudspeaker
- stators
- varies
- stator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
Abstract
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.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9504600A SE505752C2 (en) | 1995-12-22 | 1995-12-22 | Speaker |
JP9523569A JP2000505256A (en) | 1995-12-22 | 1996-12-17 | Electrostatic loudspeaker |
EP96943442A EP0864246A1 (en) | 1995-12-22 | 1996-12-17 | Electrostatic loudspeaker |
AU12175/97A AU1217597A (en) | 1995-12-22 | 1996-12-17 | Electrostatic loudspeaker |
PCT/SE1996/001675 WO1997024013A1 (en) | 1995-12-22 | 1996-12-17 | Electrostatic loudspeaker |
CA 2241156 CA2241156A1 (en) | 1995-12-22 | 1996-12-17 | Electrostatic loudspeaker |
KR1019980704771A KR19990076660A (en) | 1995-12-22 | 1996-12-17 | Capacitive loudspeakers |
NO982800A NO982800D0 (en) | 1995-12-22 | 1998-06-18 | Electrostatic speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9504600A SE505752C2 (en) | 1995-12-22 | 1995-12-22 | Speaker |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9504600D0 SE9504600D0 (en) | 1995-12-22 |
SE9504600L true SE9504600L (en) | 1997-06-23 |
SE505752C2 SE505752C2 (en) | 1997-10-06 |
Family
ID=20400681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9504600A SE505752C2 (en) | 1995-12-22 | 1995-12-22 | Speaker |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0864246A1 (en) |
JP (1) | JP2000505256A (en) |
KR (1) | KR19990076660A (en) |
AU (1) | AU1217597A (en) |
NO (1) | NO982800D0 (en) |
SE (1) | SE505752C2 (en) |
WO (1) | WO1997024013A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4822156B2 (en) * | 2005-11-24 | 2011-11-24 | 岡澤 宏一 | Electroacoustic transducer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1262505A (en) * | 1968-04-29 | 1972-02-02 | Lloyd Joseph Bobb | Speaker system and electrostatic speaker |
US3654403A (en) * | 1969-05-01 | 1972-04-04 | Chester C Pond | Electrostatic speaker |
CA989514A (en) * | 1972-09-08 | 1976-05-18 | Loh-Yi Chang | Electromechanical transducer and method of making same |
US4160882A (en) * | 1978-03-13 | 1979-07-10 | Driver Michael L | Double diaphragm electrostatic transducer each diaphragm comprising two plastic sheets having different charge carrying characteristics |
-
1995
- 1995-12-22 SE SE9504600A patent/SE505752C2/en not_active IP Right Cessation
-
1996
- 1996-12-17 EP EP96943442A patent/EP0864246A1/en not_active Ceased
- 1996-12-17 WO PCT/SE1996/001675 patent/WO1997024013A1/en not_active Application Discontinuation
- 1996-12-17 JP JP9523569A patent/JP2000505256A/en active Pending
- 1996-12-17 AU AU12175/97A patent/AU1217597A/en not_active Abandoned
- 1996-12-17 KR KR1019980704771A patent/KR19990076660A/en not_active Application Discontinuation
-
1998
- 1998-06-18 NO NO982800A patent/NO982800D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE505752C2 (en) | 1997-10-06 |
NO982800L (en) | 1998-06-18 |
EP0864246A1 (en) | 1998-09-16 |
NO982800D0 (en) | 1998-06-18 |
JP2000505256A (en) | 2000-04-25 |
WO1997024013A1 (en) | 1997-07-03 |
KR19990076660A (en) | 1999-10-15 |
AU1217597A (en) | 1997-07-17 |
SE9504600D0 (en) | 1995-12-22 |
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Legal Events
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---|---|---|---|
NUG | Patent has lapsed |
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