CA2108843C - Electrostatic loudspeaker having stationary electrodes formed as multiple sheets insulated from each other - Google Patents

Electrostatic loudspeaker having stationary electrodes formed as multiple sheets insulated from each other Download PDF

Info

Publication number
CA2108843C
CA2108843C CA002108843A CA2108843A CA2108843C CA 2108843 C CA2108843 C CA 2108843C CA 002108843 A CA002108843 A CA 002108843A CA 2108843 A CA2108843 A CA 2108843A CA 2108843 C CA2108843 C CA 2108843C
Authority
CA
Canada
Prior art keywords
electrodes
stationary
voltage
driving signal
circuit
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 - Fee Related
Application number
CA002108843A
Other languages
English (en)
French (fr)
Other versions
CA2108843A1 (en
Inventor
Keijiro Maeda
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of CA2108843A1 publication Critical patent/CA2108843A1/en
Application granted granted Critical
Publication of CA2108843C publication Critical patent/CA2108843C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Circuit For Audible Band Transducer (AREA)
CA002108843A 1992-10-24 1993-10-20 Electrostatic loudspeaker having stationary electrodes formed as multiple sheets insulated from each other Expired - Fee Related CA2108843C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JPP04-309707 1992-10-24
JP30970792 1992-10-24
JPP04-332514 1992-11-17
JP33251492 1992-11-17
JPP05-225245 1993-08-17
JP22524593A JP3277498B2 (ja) 1992-10-24 1993-08-17 スピーカ装置

Publications (2)

Publication Number Publication Date
CA2108843A1 CA2108843A1 (en) 1994-04-25
CA2108843C true CA2108843C (en) 2001-04-03

Family

ID=27331016

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002108843A Expired - Fee Related CA2108843C (en) 1992-10-24 1993-10-20 Electrostatic loudspeaker having stationary electrodes formed as multiple sheets insulated from each other

Country Status (8)

Country Link
US (1) US5471540A (en, 2012)
EP (1) EP0595221B1 (en, 2012)
JP (1) JP3277498B2 (en, 2012)
KR (1) KR940010847A (en, 2012)
CA (1) CA2108843C (en, 2012)
DE (1) DE69318668T2 (en, 2012)
MY (1) MY111964A (en, 2012)
TW (1) TW234232B (en, 2012)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713039B1 (fr) * 1993-11-25 1996-03-08 Leduc Bernard Haut-parleur électrostatique, panneau électrostatique correspondant et procédé de recouvrement par un film isolant d'une électrode mise en Óoeuvre dans un tel haut-parleur.
US5949892A (en) * 1995-12-07 1999-09-07 Advanced Micro Devices, Inc. Method of and apparatus for dynamically controlling operating characteristics of a microphone
US6628791B1 (en) * 1999-10-29 2003-09-30 American Technology Corporation Signal derived bias supply for electrostatic loudspeakers
US6914991B1 (en) * 2000-04-17 2005-07-05 Frank Joseph Pompei Parametric audio amplifier system
EP1194004A1 (en) * 2000-09-29 2002-04-03 Thomson Licensing S.A. Electrostatic acoustic device
US7889877B2 (en) * 2003-06-30 2011-02-15 Nxp B.V. Device for generating a medium stream
US7054456B2 (en) * 2004-01-06 2006-05-30 Final Sound International Pte. Ltd. Invertedly driven electrostatic speaker
JP4103877B2 (ja) 2004-09-22 2008-06-18 セイコーエプソン株式会社 静電型超音波トランスデューサ及び超音波スピーカ
WO2006039791A1 (en) * 2004-10-12 2006-04-20 Jds Uniphase Corporation Systems and methods for optical switching to colourless ports and coloured ports
JP4983171B2 (ja) 2005-11-15 2012-07-25 セイコーエプソン株式会社 静電型トランスデューサ、容量性負荷の駆動回路、回路定数の設定方法、超音波スピーカ、および指向性音響システム
AU2006341769A1 (en) * 2006-04-10 2007-10-18 Immersion Technology Property Limited An electrostatic loudspeaker and stator
JP4697047B2 (ja) * 2006-05-24 2011-06-08 ヤマハ株式会社 静電型スピーカ
US7908062B2 (en) * 2007-02-28 2011-03-15 Caterpillar Inc. System and method for preparing a worksite based on soil moisture map data
EP2009950A1 (de) * 2007-06-28 2008-12-31 Lyttron Technologies GmbH Elektrostatischer Folienschallwandler und Verfahren zu dessen Herstellung
US8559660B2 (en) 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
JP5169208B2 (ja) * 2007-12-21 2013-03-27 ヤマハ株式会社 ワイヤレススピーカ装置
JP5206087B2 (ja) * 2008-04-15 2013-06-12 ヤマハ株式会社 スピーカシステム
JP2009278479A (ja) * 2008-05-16 2009-11-26 Foster Electric Co Ltd 静電型スピーカ
US8831248B2 (en) * 2010-08-04 2014-09-09 Nokia Corporation Apparatus with directivity pattern
JP5760878B2 (ja) * 2010-09-08 2015-08-12 ヤマハ株式会社 静電型の電気音響変換器
GB2490930A (en) * 2011-05-19 2012-11-21 Warwick Audio Technologies Ltd A switching amplifier arrangement providing both signal drive and a high bias voltage for an electrostatic loudspeaker
GB2490931A (en) 2011-05-19 2012-11-21 Warwick Audio Technologies Ltd Electrostatic acoustic transducer
JP5590089B2 (ja) * 2012-10-03 2014-09-17 ヤマハ株式会社 スピーカシステム
GB2522932A (en) 2014-02-11 2015-08-12 Warwick Audio Technologies Ltd Improved electrostatic transducer
GB2522931A (en) 2014-02-11 2015-08-12 Warwick Audio Technologies Ltd Improved electrostatic transducer
US20180227674A1 (en) * 2015-06-08 2018-08-09 Wizedsp Ltd. An electrostatic loudspeaker and method of same
CN106454667B (zh) * 2016-08-24 2022-04-22 深圳市炜鼎科技有限公司 静电扬声器系统
EP3803554A4 (en) 2018-05-24 2022-06-08 The Research Foundation for The State University of New York Capacitive sensor
GB201906425D0 (en) 2019-05-07 2019-06-19 Warwick Acoustics Ltd Electrostatic transducer and diaphragm
CN118511544A (zh) * 2022-01-14 2024-08-16 罗伯特·博世有限公司 声音换能器系统的差分驱动

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1622039A (en) * 1925-05-02 1927-03-22 Frederick W Lee Apparatus for and method of reproducing sound
US3135838A (en) * 1958-12-10 1964-06-02 Wright St George Lab Inc Electrostatic loudspeaker
NL281549A (en, 2012) * 1961-09-25
GB1059307A (en) * 1965-02-12 1967-02-15 Alexander Shackman Improvements in electrostatic loudspeakers
GB1234767A (en) * 1967-09-18 1971-06-09 Decca Ltd Improvements in or relating to electro-acoustic transducers
US3892927A (en) * 1973-09-04 1975-07-01 Theodore Lindenberg Full range electrostatic loudspeaker for audio frequencies
US3992585A (en) * 1975-10-06 1976-11-16 Koss Corporation Self-energizing electrostatic loudspeaker system
DE2900611A1 (de) * 1979-01-09 1980-07-17 Stefan Reich Elektroakustischer wandler
JPS57125600A (en) * 1981-02-21 1982-08-04 Bulgarsko Radio Electrostatic acoustic converter
JPS58117799A (ja) * 1981-12-30 1983-07-13 Toshiba Corp 静電形トランスジユ−サ

Also Published As

Publication number Publication date
MY111964A (en) 2001-03-31
EP0595221B1 (en) 1998-05-20
CA2108843A1 (en) 1994-04-25
JP3277498B2 (ja) 2002-04-22
DE69318668D1 (de) 1998-06-25
KR940010847A (ko) 1994-05-26
JPH06209499A (ja) 1994-07-26
US5471540A (en) 1995-11-28
EP0595221A1 (en) 1994-05-04
DE69318668T2 (de) 1999-01-07
TW234232B (en, 2012) 1994-11-11

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