SE9504600L - Speaker - Google Patents

Speaker

Info

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
Application number
SE9504600A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9504600D0 (en
SE505752C2 (en
Inventor
Tore Fors
Original Assignee
Tore Fors
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tore Fors filed Critical Tore Fors
Priority to SE9504600A priority Critical patent/SE505752C2/en
Publication of SE9504600D0 publication Critical patent/SE9504600D0/en
Priority to CA 2241156 priority patent/CA2241156A1/en
Priority to JP9523569A priority patent/JP2000505256A/en
Priority to KR1019980704771A priority patent/KR19990076660A/en
Priority to PCT/SE1996/001675 priority patent/WO1997024013A1/en
Priority to EP96943442A priority patent/EP0864246A1/en
Priority to AU12175/97A priority patent/AU1217597A/en
Publication of SE9504600L publication Critical patent/SE9504600L/en
Publication of SE505752C2 publication Critical patent/SE505752C2/en
Priority to NO982800A priority patent/NO982800D0/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

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.
SE9504600A 1995-12-22 1995-12-22 Speaker SE505752C2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9504600A SE505752C2 (en) 1995-12-22 1995-12-22 Speaker
CA 2241156 CA2241156A1 (en) 1995-12-22 1996-12-17 Electrostatic loudspeaker
JP9523569A JP2000505256A (en) 1995-12-22 1996-12-17 Electrostatic loudspeaker
KR1019980704771A KR19990076660A (en) 1995-12-22 1996-12-17 Capacitive loudspeakers
PCT/SE1996/001675 WO1997024013A1 (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
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
NO982800L (en) 1998-06-18
EP0864246A1 (en) 1998-09-16
NO982800D0 (en) 1998-06-18
SE9504600D0 (en) 1995-12-22
WO1997024013A1 (en) 1997-07-03
KR19990076660A (en) 1999-10-15
JP2000505256A (en) 2000-04-25
AU1217597A (en) 1997-07-17
SE505752C2 (en) 1997-10-06

Similar Documents

Publication Publication Date Title
WO2001058973A3 (en) Energy efficient electroactive polymers and electroactive polymer devices
CA2283240A1 (en) Electrode with improved signal to noise ratio
EP0860685A3 (en) Vibrating gyroscope
TR200302018T4 (en) the transducer
WO2001059852A3 (en) Monolithic electroactive polymers
DE69433360D1 (en) IMPLANTABLE MAGNETIC HEARING AID CONVERTER
DE69014225D1 (en) Acoustic omnidirectional generator and speaker system.
KR830008622A (en) Electroacoustic transducer
DK491986D0 (en) DIRECTION MICROPHONE
SE0002834D0 (en) Electrochromic device based on nanochrystalline materials
ATE161439T1 (en) HIGH PRESSURE LOW IMPEDANCE ELECTROSTATIC TRANSDUCER
ATE421229T1 (en) VIBRATOR FOR BONE CONDUCTION HEARING AIDS
MX9801503A (en) Electric shaver.
ATE197869T1 (en) DRY WATER-DISPPERSIBLE COMPOSITIONS OF MICRO-ENCAPSULED PESTICIDES
KR960033153A (en) Package type piezoelectric transducer unit
JP2008141380A (en) Vibration element using electroactive polymer
ATA74486A (en) DIRECTIONAL MICROPHONE ACCORDING TO THE ELECTROSTATIC OR ELECTRODYNAMIC CONVERTER PRINCIPLE
WO2000002110A3 (en) Micromechanical alternating and direct voltage reference apparatus
SE9504600D0 (en) Speaker
RU2001123680A (en) MIXED ELECTROLYTIC SPEAKER MODULE
US7925033B2 (en) Electro-acoustic transducer
EP0706301A3 (en) Small-sized sound generator
JPS5533392A (en) Electroacoustic converter
SU630180A1 (en) Method of separating paper sheets from pile
JPS5494020A (en) Complex speaker

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9504600-9

Format of ref document f/p: F