FR2059726A1 - - Google Patents

Info

Publication number
FR2059726A1
FR2059726A1 FR7031537A FR7031537A FR2059726A1 FR 2059726 A1 FR2059726 A1 FR 2059726A1 FR 7031537 A FR7031537 A FR 7031537A FR 7031537 A FR7031537 A FR 7031537A FR 2059726 A1 FR2059726 A1 FR 2059726A1
Authority
FR
France
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.)
Granted
Application number
FR7031537A
Other versions
FR2059726B1 (fr
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of FR2059726A1 publication Critical patent/FR2059726A1/fr
Application granted granted Critical
Publication of FR2059726B1 publication Critical patent/FR2059726B1/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
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR7031537A 1969-08-28 1970-08-28 Expired FR2059726B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44067613A JPS4815867B1 (fr) 1969-08-28 1969-08-28

Publications (2)

Publication Number Publication Date
FR2059726A1 true FR2059726A1 (fr) 1971-06-04
FR2059726B1 FR2059726B1 (fr) 1974-04-26

Family

ID=13349963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7031537A Expired FR2059726B1 (fr) 1969-08-28 1970-08-28

Country Status (6)

Country Link
US (1) US3646280A (fr)
JP (1) JPS4815867B1 (fr)
CA (1) CA933277A (fr)
FR (1) FR2059726B1 (fr)
GB (1) GB1318734A (fr)
ZA (1) ZA705815B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840084B1 (fr) * 1969-11-19 1973-11-28
US3787642A (en) * 1971-09-27 1974-01-22 Gte Automatic Electric Lab Inc Electrostatic transducer having resilient electrode
JPS5221364B2 (fr) * 1971-11-04 1977-06-10
CA989514A (en) * 1972-09-08 1976-05-18 Loh-Yi Chang Electromechanical transducer and method of making same
DE2330800C3 (de) * 1973-06-16 1981-10-01 Sennheiser Electronic Kg, 3002 Wedemark Elektroakustischer Wandler nach dem elektrostatischen Prinzip und Verfahren zu dessen Herstellung
US3896274A (en) * 1973-10-04 1975-07-22 Thermo Electron Corp Electret earphone
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
DE102007014577A1 (de) * 2007-03-23 2008-09-25 Sennheiser Electronic Gmbh & Co. Kg Kapazitiver Aufnahmewandler und Mikrofon
US8559660B2 (en) * 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
JP5262288B2 (ja) * 2007-09-27 2013-08-14 ヤマハ株式会社 静電型スピーカ
US8300858B2 (en) 2007-09-27 2012-10-30 Yamaha Corporation Electrostatic speaker
TWI419577B (zh) * 2009-12-23 2013-12-11 Ind Tech Res Inst 揚聲器的製造方法與裝置
TWM395976U (en) * 2010-06-30 2011-01-01 Tsung-Hung Wu Electret electroacoustic transducer
TW201204062A (en) * 2010-07-15 2012-01-16 Taiwan Electrets Electronics Co Ltd Electrostatic speaker and manufacturing method thereof and conducting plate of the speaker
WO2014100012A1 (fr) 2012-12-20 2014-06-26 The Regents Of The University Of California Haut-parleur en graphène électrostatique
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1469120A (fr) * 1964-12-28 1967-02-10 Matsushita Electric Ind Co Ltd Microphone à condensateur
US3373251A (en) * 1965-02-23 1968-03-12 Shure Bros Electrostatic transducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1469120A (fr) * 1964-12-28 1967-02-10 Matsushita Electric Ind Co Ltd Microphone à condensateur
US3373251A (en) * 1965-02-23 1968-03-12 Shure Bros Electrostatic transducer

Also Published As

Publication number Publication date
ZA705815B (en) 1971-04-28
GB1318734A (en) 1973-05-31
JPS4815867B1 (fr) 1973-05-17
DE2042351B2 (de) 1972-07-27
US3646280A (en) 1972-02-29
FR2059726B1 (fr) 1974-04-26
DE2042351A1 (de) 1972-03-02
CA933277A (en) 1973-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse