JPS5121791B2 - - Google Patents

Info

Publication number
JPS5121791B2
JPS5121791B2 JP47078103A JP7810372A JPS5121791B2 JP S5121791 B2 JPS5121791 B2 JP S5121791B2 JP 47078103 A JP47078103 A JP 47078103A JP 7810372 A JP7810372 A JP 7810372A JP S5121791 B2 JPS5121791 B2 JP S5121791B2
Authority
JP
Japan
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
JP47078103A
Other languages
Japanese (ja)
Other versions
JPS4936321A (xx
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 filed Critical
Priority to JP47078103A priority Critical patent/JPS5121791B2/ja
Priority to US383990A priority patent/US3908098A/en
Priority to GB3677273A priority patent/GB1430827A/en
Priority to DE2339433A priority patent/DE2339433B2/de
Priority to IT27521/73A priority patent/IT992831B/it
Priority to BR5950/73A priority patent/BR7305950D0/pt
Priority to FR7328571A priority patent/FR2195144B1/fr
Priority to CA178,072A priority patent/CA1008170A/en
Priority to NL7310856A priority patent/NL7310856A/xx
Publication of JPS4936321A publication Critical patent/JPS4936321A/ja
Publication of JPS5121791B2 publication Critical patent/JPS5121791B2/ja
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
JP47078103A 1972-08-04 1972-08-04 Expired JPS5121791B2 (xx)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP47078103A JPS5121791B2 (xx) 1972-08-04 1972-08-04
US383990A US3908098A (en) 1972-08-04 1973-07-30 Electrostatic transducer
GB3677273A GB1430827A (en) 1972-08-04 1973-08-02 Electrostatic transducers
DE2339433A DE2339433B2 (de) 1972-08-04 1973-08-03 Elektroakustischer Wandler nach dem elektrostatischen Prinzip
IT27521/73A IT992831B (it) 1972-08-04 1973-08-03 Trasduttore elettrostatico
BR5950/73A BR7305950D0 (pt) 1972-08-04 1973-08-03 Um transdutor eletrostatico
FR7328571A FR2195144B1 (xx) 1972-08-04 1973-08-03
CA178,072A CA1008170A (en) 1972-08-04 1973-08-03 Electrostatic transducer
NL7310856A NL7310856A (xx) 1972-08-04 1973-08-06

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS4936321A JPS4936321A (xx) 1974-04-04
JPS5121791B2 true JPS5121791B2 (xx) 1976-07-05

Family

ID=13652531

Family Applications (1)

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

Country Status (9)

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

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115933U (xx) * 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
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
US6775388B1 (en) 1998-07-16 2004-08-10 Massachusetts Institute Of Technology Ultrasonic transducers
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US20060233404A1 (en) * 2000-03-28 2006-10-19 American Technology Corporation. Horn array emitter
US6925187B2 (en) * 2000-03-28 2005-08-02 American Technology Corporation Horn array emitter
AU2002353793A1 (en) 2001-10-09 2003-04-22 Frank Joseph Pompei Ultrasonic transducer for parametric array
WO2005043771A1 (en) 2003-10-23 2005-05-12 American Technology Corporation Method of adusting 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
US9686618B2 (en) 2012-06-12 2017-06-20 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
WO2017053716A1 (en) * 2015-09-24 2017-03-30 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 (xx) * 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 (xx) 1974-03-01
NL7310856A (xx) 1974-02-06
DE2339433B2 (de) 1974-12-19
GB1430827A (en) 1976-04-07
DE2339433A1 (de) 1974-02-14
FR2195144B1 (xx) 1978-08-11
JPS4936321A (xx) 1974-04-04
IT992831B (it) 1975-09-30
US3908098A (en) 1975-09-23
BR7305950D0 (pt) 1974-07-11
CA1008170A (en) 1977-04-05

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