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 (enrdf_load_stackoverflow
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 CA178,072A priority patent/CA1008170A/en
Priority to BR5950/73A priority patent/BR7305950D0/pt
Priority to FR7328571A priority patent/FR2195144B1/fr
Priority to DE2339433A priority patent/DE2339433B2/de
Priority to IT27521/73A priority patent/IT992831B/it
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

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)
JP47078103A 1972-08-04 1972-08-04 Expired JPS5121791B2 (enrdf_load_stackoverflow)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP47078103A JPS5121791B2 (enrdf_load_stackoverflow) 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
CA178,072A CA1008170A (en) 1972-08-04 1973-08-03 Electrostatic transducer
BR5950/73A BR7305950D0 (pt) 1972-08-04 1973-08-03 Um transdutor eletrostatico
FR7328571A FR2195144B1 (enrdf_load_stackoverflow) 1972-08-04 1973-08-03
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
NL7310856A NL7310856A (enrdf_load_stackoverflow) 1972-08-04 1973-08-06

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=13652531

Family Applications (1)

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

Country Status (9)

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

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51115933U (enrdf_load_stackoverflow) * 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
US4429189A (en) 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Electret transducer with a selectively metalized backplate
US4429190A (en) 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Continuous strip electret transducer array
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
WO2003032678A2 (en) 2001-10-09 2003-04-17 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
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 (enrdf_load_stackoverflow) * 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
GB1430827A (en) 1976-04-07
US3908098A (en) 1975-09-23
DE2339433A1 (de) 1974-02-14
NL7310856A (enrdf_load_stackoverflow) 1974-02-06
JPS4936321A (enrdf_load_stackoverflow) 1974-04-04
IT992831B (it) 1975-09-30
FR2195144A1 (enrdf_load_stackoverflow) 1974-03-01
FR2195144B1 (enrdf_load_stackoverflow) 1978-08-11
DE2339433B2 (de) 1974-12-19
CA1008170A (en) 1977-04-05
BR7305950D0 (pt) 1974-07-11

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