FR1134837A - Perfectionnements aux haut-parleurs électrostatiques - Google Patents

Perfectionnements aux haut-parleurs électrostatiques

Info

Publication number
FR1134837A
FR1134837A FR1134837DA FR1134837A FR 1134837 A FR1134837 A FR 1134837A FR 1134837D A FR1134837D A FR 1134837DA FR 1134837 A FR1134837 A FR 1134837A
Authority
FR
France
Prior art keywords
electrostatic loudspeakers
loudspeakers
electrostatic
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Peter James Walker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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
Priority claimed from GB2107054A external-priority patent/GB815978A/en
Application filed by Ferranti PLC filed Critical Ferranti PLC
Application granted granted Critical
Publication of FR1134837A publication Critical patent/FR1134837A/fr
Expired legal-status Critical Current

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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR1134837D 1954-07-20 1955-07-18 Perfectionnements aux haut-parleurs électrostatiques Expired FR1134837A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2107054A GB815978A (en) 1954-07-20 Improvements relating to electrostatic loudspeakers

Publications (1)

Publication Number Publication Date
FR1134837A true FR1134837A (fr) 1957-04-18

Family

ID=10156690

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1134837D Expired FR1134837A (fr) 1954-07-20 1955-07-18 Perfectionnements aux haut-parleurs électrostatiques
FR70574D Expired FR70574E (fr) 1954-07-20 1956-10-10 Perfectionnements aux haut-parleurs électrostatiques

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR70574D Expired FR70574E (fr) 1954-07-20 1956-10-10 Perfectionnements aux haut-parleurs électrostatiques

Country Status (3)

Country Link
US (2) US3008013A (fr)
DE (2) DE1139548B (fr)
FR (2) FR1134837A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039244A1 (fr) * 1969-04-17 1971-01-15 Bowers Wilkins Electroni

Families Citing this family (68)

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US3135838A (en) * 1958-12-10 1964-06-02 Wright St George Lab Inc Electrostatic loudspeaker
NL281549A (fr) * 1961-09-25
US3403234A (en) * 1964-09-11 1968-09-24 Northrop Corp Acoustic transducer
US3389226A (en) * 1964-12-29 1968-06-18 Gen Electric Electrostatic loudspeaker
US3295360A (en) * 1965-04-21 1967-01-03 Dimeff John Dynamic sensor
US3422324A (en) * 1967-05-17 1969-01-14 Webb James E Pressure variable capacitor
US3562429A (en) * 1968-04-29 1971-02-09 Teachout West Electro Acoustic Sound transmitter with feedback and polarization circuitry
CA866963A (en) * 1969-12-08 1971-03-23 Dayton Wright Associates Limited Audio system including electrostatic loudspeaker
US3783202A (en) * 1971-01-07 1974-01-01 Pond C Speaker system and electrostatic speaker
JPS5632839B1 (fr) * 1971-03-11 1981-07-30
US3859477A (en) * 1971-06-24 1975-01-07 Tesla Np Electrostatic transducer
AT323823B (de) * 1973-06-19 1975-07-25 Akg Akustische Kino Geraete Schallsender nach dem zweinegsystem, insbesondere für kopphörer
US3778562A (en) * 1973-10-21 1973-12-11 Dayton Wright Ass Ltd Electrostatic loudspeaker having acoustic wavefront modifying device
GB1428913A (en) * 1974-03-23 1976-03-24 Electrostatic Research Coerpor Electrostatic transducer and method and means for making same
US4006317A (en) * 1975-02-14 1977-02-01 Freeman Miller L Electrostatic transducer and acoustic and electric signal integrator
US4081626A (en) * 1976-11-12 1978-03-28 Polaroid Corporation Electrostatic transducer having narrowed directional characteristic
AT361555B (de) * 1979-02-12 1981-03-25 Akg Akustische Kino Geraete Kopfhoerer
GB2056815B (en) * 1979-06-30 1984-01-04 Pioneer Electronic Corp Coaxial multi-way planar diaphragm loudspeaker system
DE3003178C2 (de) * 1980-01-30 1983-08-04 Sennheiser Electronic Kg, 3002 Wedemark Elektroakustischer Wandler nach dem elektrostatischem Prinzip
US4330691A (en) * 1980-01-31 1982-05-18 The Futures Group, Inc. Integral ceiling tile-loudspeaker system
JPS57125600A (en) * 1981-02-21 1982-08-04 Bulgarsko Radio Electrostatic acoustic converter
US5054081B1 (en) * 1985-04-02 1994-06-28 Roger A West Electrostatic transducer with improved bass response utilizing distributed bass resonance energy
US4703509A (en) * 1985-06-19 1987-10-27 Zavod Za Elektronni Preobrazuvatelni Elementi Electrostatic acoustic converter with stationary electrode having a progressively increasing surface resistance
NL8601772A (nl) * 1986-07-08 1988-02-01 Philips Nv Inrichting voor het omzetten van een elektrisch signaal in een akoestisch signaal, voorzien van een elektrostatische omzettereenheid.
KR880004711A (ko) * 1986-09-30 1988-06-07 임경춘 압전형 필름스피커의 스테레오 시스템
US5206557A (en) * 1990-11-27 1993-04-27 Mcnc Microelectromechanical transducer and fabrication method
US5479061A (en) * 1992-12-31 1995-12-26 University Of North Carolina Pleated sheet microelectromechanical transducer
FI104611B (fi) * 1993-06-21 2000-02-29 Panphonics Oy Laskostettu energiamuunnin
US5434464A (en) * 1994-05-23 1995-07-18 Mcnc Unidirectional supporting structure for microelectromechanical transducers
FI116873B (fi) * 1996-02-26 2006-03-15 Panphonics Oy Akustinen elementti ja menetelmä äänen käsittelemiseksi
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6188772B1 (en) * 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US6175636B1 (en) * 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
FI116605B (fi) * 1999-11-05 2005-12-30 Panphonics Oy Akustinen elementti
JP2002135896A (ja) * 2000-10-25 2002-05-10 Sony Corp スピーカ装置
KR20030079956A (ko) * 2001-01-22 2003-10-10 어메리컨 테크놀로지 코포레이션 개선된 단일단부 평면 자기 스피커
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
US6760462B1 (en) 2003-01-09 2004-07-06 Eminent Technology Incorporated Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control
US7889877B2 (en) * 2003-06-30 2011-02-15 Nxp B.V. Device for generating a medium stream
US7564981B2 (en) 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
DE102004048990A1 (de) * 2004-10-04 2006-04-06 Volkswagen Ag Lautsprecheranordnung in einem Kraftfahrzeug
WO2007115358A1 (fr) * 2006-04-10 2007-10-18 Immersion Technology Property Limited Haut-parleur électrostatique
US8184832B2 (en) * 2006-04-14 2012-05-22 Harman Murray R Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
US8670581B2 (en) 2006-04-14 2014-03-11 Murray R. Harman Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
CN101911722B (zh) * 2007-11-13 2013-10-30 Akg声学有限公司 具有两个压力梯度换能器的麦克风装置
DE602007012599D1 (de) * 2007-11-13 2011-03-31 Akg Acoustics Gmbh Mikrofonanordnung
EP2208362B1 (fr) * 2007-11-13 2011-07-27 AKG Acoustics GmbH Procédé de synthétisation d'un signal de microphone
US8184833B2 (en) * 2007-12-14 2012-05-22 Sony Ericsson Mobile Communications Ab Electrostatic speaker arrangement for a mobile device
TWI350116B (en) * 2007-12-18 2011-10-01 Princeton Technology Corp Audio playing module and method of the same
WO2009105793A1 (fr) * 2008-02-26 2009-09-03 Akg Acoustics Gmbh Ensemble transducteur
US9002032B2 (en) 2010-06-14 2015-04-07 Turtle Beach Corporation Parametric signal processing systems and methods
US8831248B2 (en) * 2010-08-04 2014-09-09 Nokia Corporation Apparatus with directivity pattern
US9036831B2 (en) 2012-01-10 2015-05-19 Turtle Beach Corporation Amplification system, carrier tracking systems and related methods for use in parametric sound systems
WO2013158298A1 (fr) 2012-04-18 2013-10-24 Parametric Sound Corporation Procédés associés à des transducteurs paramétriques
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US20140247955A1 (en) * 2013-03-04 2014-09-04 Sony Corporation Folded electrostatic speaker
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
US9866955B2 (en) * 2013-08-23 2018-01-09 Google Llc Enhancement of intelligibility in noisy environment
FR3027762B1 (fr) * 2014-10-27 2018-01-19 Universite Du Maine Transducteur electroacoustique, ensemble et systeme associes
WO2016127119A1 (fr) * 2015-02-06 2016-08-11 Clean Energy Labs, Llc Haut-parleur doté de transducteurs à membrane électroconductrice
US9602930B2 (en) * 2015-03-31 2017-03-21 Qualcomm Incorporated Dual diaphragm microphone
DE102016125077A1 (de) * 2015-12-23 2017-06-29 Sennheiser Electronic Gmbh & Co. Kg Elektrostatischer Kopfhörer

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE368900C (fr) * 1921-11-28
GB222507A (en) * 1924-09-29 1925-10-15 Hermann Meusser Improvements in or relating to electric condensers
FR613417A (fr) * 1925-03-31 1926-11-17
US1622039A (en) * 1925-05-02 1927-03-22 Frederick W Lee Apparatus for and method of reproducing sound
US1631583A (en) * 1926-02-12 1927-06-07 Ignatz Lauter Capacitatively-actuated loud speaker
DE531299C (de) * 1928-01-14 1931-08-07 Vogt Hans Verfahren zur Herstellung der festen Kondensatorplatten fuer elektrostatische Telephone und Mikrophone
US1881107A (en) * 1928-05-16 1932-10-04 Vogt Hans Sounding condenser
GB322744A (en) * 1928-09-10 1929-12-10 Vogt Hans Improvements in condenser telephones
US1762981A (en) * 1928-06-06 1930-06-10 Bell Telephone Labor Inc Acoustic device
BE373730A (fr) * 1929-09-27
DE573873C (de) * 1929-10-30 1933-04-06 Albert Rauser Elektrostatischer Lautsprecher mit durch eine Vorspannung polarisierter Membran
GB348573A (en) * 1930-02-12 1931-05-12 Albert Rauser Improvements relating to electrostatic loud-speakers
DE581339C (de) * 1931-04-30 1933-07-26 Vogt Hans Schaltungsanordnung fuer den Anschluss mehrerer verschiedene Frequenzgebiete bevorzugender toenender Kondensatoren
US1930518A (en) * 1930-07-30 1933-10-17 Westinghouse Electric & Mfg Co Electrostatic loud speaker
GB370248A (en) * 1931-06-01 1932-04-07 Albert Rauser Improvements in electrostatic loud-speakers
BE464634A (fr) * 1946-01-22 S E M S A R L Ets
US2631196A (en) * 1949-10-05 1953-03-10 Arthur A Janszen Electrostatic loud-speaker
US2796467A (en) * 1951-12-12 1957-06-18 Bell Telephone Labor Inc Directional transducer
US2855467A (en) * 1953-12-11 1958-10-07 Curry Electronics Inc Loud speakers
US2864899A (en) * 1954-11-29 1958-12-16 Henry W Parker Transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039244A1 (fr) * 1969-04-17 1971-01-15 Bowers Wilkins Electroni

Also Published As

Publication number Publication date
FR70574E (fr) 1959-05-29
DE1139548B (de) 1962-11-15
DE1088546B (de) 1960-09-08
US3008013A (en) 1961-11-07
US3008014A (en) 1961-11-07

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