CA1008170A - Electrostatic transducer - Google Patents

Electrostatic transducer

Info

Publication number
CA1008170A
CA1008170A CA178,072A CA178072A CA1008170A CA 1008170 A CA1008170 A CA 1008170A CA 178072 A CA178072 A CA 178072A CA 1008170 A CA1008170 A CA 1008170A
Authority
CA
Canada
Prior art keywords
electrostatic transducer
transducer
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
CA178,072A
Other languages
English (en)
Other versions
CA178072S (en
Inventor
Hirotake Kawakami
Tooru Fukumoto
Yoshihiro Yokoyama
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
Application granted granted Critical
Publication of CA1008170A publication Critical patent/CA1008170A/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
CA178,072A 1972-08-04 1973-08-03 Electrostatic transducer Expired CA1008170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47078103A JPS5121791B2 (pt) 1972-08-04 1972-08-04

Publications (1)

Publication Number Publication Date
CA1008170A true CA1008170A (en) 1977-04-05

Family

ID=13652531

Family Applications (1)

Application Number Title Priority Date Filing Date
CA178,072A Expired CA1008170A (en) 1972-08-04 1973-08-03 Electrostatic transducer

Country Status (9)

Country Link
US (1) US3908098A (pt)
JP (1) JPS5121791B2 (pt)
BR (1) BR7305950D0 (pt)
CA (1) CA1008170A (pt)
DE (1) DE2339433B2 (pt)
FR (1) FR2195144B1 (pt)
GB (1) GB1430827A (pt)
IT (1) IT992831B (pt)
NL (1) NL7310856A (pt)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115933U (pt) * 1975-03-17 1976-09-20
US4081626A (en) * 1976-11-12 1978-03-28 Polaroid Corporation Electrostatic transducer having narrowed directional characteristic
JPS53148425A (en) * 1977-05-31 1978-12-25 Kenkichi Tsukamoto Electric sound transducer
JPS5846800A (ja) * 1981-09-14 1983-03-18 Matsushita Electric Works Ltd 静電型超音波振動子
US4439642A (en) * 1981-12-28 1984-03-27 Polaroid Corporation High energy ultrasonic transducer
US4495385A (en) * 1982-12-02 1985-01-22 Honeywell Inc. Acoustic microphone
US4891843A (en) * 1983-02-24 1990-01-02 At&T Technologies, Inc. Electret microphone
US4533794A (en) * 1983-05-23 1985-08-06 Beveridge Harold N Electrode for electrostatic transducer
US6044160A (en) * 1998-01-13 2000-03-28 American Technology Corporation Resonant tuned, ultrasonic electrostatic emitter
US6775388B1 (en) 1998-07-16 2004-08-10 Massachusetts Institute Of Technology Ultrasonic transducers
JP2000050387A (ja) 1998-07-16 2000-02-18 Massachusetts Inst Of Technol <Mit> パラメトリックオ―ディオシステム
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US6925187B2 (en) * 2000-03-28 2005-08-02 American Technology Corporation Horn array emitter
US20060233404A1 (en) * 2000-03-28 2006-10-19 American Technology Corporation. Horn array emitter
WO2003032678A2 (en) 2001-10-09 2003-04-17 Frank Joseph Pompei Ultrasonic transducer for parametric array
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
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
JP4998299B2 (ja) * 2008-02-04 2012-08-15 ヤマハ株式会社 静電型スピーカ
GB2490931A (en) * 2011-05-19 2012-11-21 Warwick Audio Technologies Ltd Electrostatic acoustic transducer
EP2858829B1 (en) 2012-06-12 2021-05-19 Frank Joseph Pompei Ultrasonic transducer
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
US10991359B2 (en) * 2015-09-24 2021-04-27 Frank Joseph Pompei Ultrasonic transducers
GB201906425D0 (en) 2019-05-07 2019-06-19 Warwick Acoustics Ltd Electrostatic transducer and diaphragm

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR634695A (fr) * 1926-05-21 1928-02-23 Dispositif vibratoire électrostatique
BE345155A (pt) * 1926-10-20
US1745937A (en) * 1928-03-12 1930-02-04 United Reproducers Patents Cor Acoustic device
US1851240A (en) * 1928-11-02 1932-03-29 United Reproducers Patents Cor Electrostatic sound producer
US2130946A (en) * 1936-12-29 1938-09-20 William A Brune Microphone
US3041418A (en) * 1960-01-14 1962-06-26 Rca Corp Transducers
FR1330592A (fr) * 1961-08-07 1963-06-21 Western Electric Co Transducteur électrostatique

Also Published As

Publication number Publication date
FR2195144A1 (pt) 1974-03-01
BR7305950D0 (pt) 1974-07-11
NL7310856A (pt) 1974-02-06
JPS5121791B2 (pt) 1976-07-05
FR2195144B1 (pt) 1978-08-11
DE2339433B2 (de) 1974-12-19
US3908098A (en) 1975-09-23
GB1430827A (en) 1976-04-07
IT992831B (it) 1975-09-30
DE2339433A1 (de) 1974-02-14
JPS4936321A (pt) 1974-04-04

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