GB1318734A - Electrostatic electroacoustic transducer - Google Patents

Electrostatic electroacoustic transducer

Info

Publication number
GB1318734A
GB1318734A GB4134270A GB4134270A GB1318734A GB 1318734 A GB1318734 A GB 1318734A GB 4134270 A GB4134270 A GB 4134270A GB 4134270 A GB4134270 A GB 4134270A GB 1318734 A GB1318734 A GB 1318734A
Authority
GB
United Kingdom
Prior art keywords
fibres
perforated
pressure
electret
aug
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
GB4134270A
Other languages
English (en)
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 GB1318734A publication Critical patent/GB1318734A/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
    • 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)
GB4134270A 1969-08-28 1970-08-27 Electrostatic electroacoustic transducer Expired GB1318734A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1318734A true GB1318734A (en) 1973-05-31

Family

ID=13349963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4134270A Expired GB1318734A (en) 1969-08-28 1970-08-27 Electrostatic electroacoustic transducer

Country Status (6)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330800A1 (de) * 1973-06-16 1975-01-09 Sennheiser Electronic Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung
US8300858B2 (en) 2007-09-27 2012-10-30 Yamaha Corporation Electrostatic speaker
TWI499313B (zh) * 2007-09-27 2015-09-01 Yamaha Corp 靜電擴音器

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840084B1 (enrdf_load_stackoverflow) * 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 (enrdf_load_stackoverflow) * 1971-11-04 1977-06-10
CA989514A (en) * 1972-09-08 1976-05-18 Loh-Yi Chang Electromechanical transducer and method of making same
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
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 (en) * 2012-12-20 2014-06-26 The Regents Of The University Of California Electrostatic graphene speaker
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof
JP7370039B2 (ja) * 2019-07-12 2023-10-27 国立研究開発法人産業技術総合研究所 音圧－電気信号変換装置及びその変換方法

Family Cites Families (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 Industrial Co Ltd Microphone à condensateur
US3373251A (en) * 1965-02-23 1968-03-12 Shure Bros Electrostatic transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330800A1 (de) * 1973-06-16 1975-01-09 Sennheiser Electronic Elektroakustischer wandler nach dem elektrostatischen prinzip und verfahren zu dessen herstellung
US8300858B2 (en) 2007-09-27 2012-10-30 Yamaha Corporation Electrostatic speaker
TWI499313B (zh) * 2007-09-27 2015-09-01 Yamaha Corp 靜電擴音器

Also Published As

Publication number Publication date
FR2059726B1 (enrdf_load_stackoverflow) 1974-04-26
DE2042351A1 (de) 1972-03-02
JPS4815867B1 (enrdf_load_stackoverflow) 1973-05-17
CA933277A (en) 1973-09-04
ZA705815B (en) 1971-04-28
FR2059726A1 (enrdf_load_stackoverflow) 1971-06-04
DE2042351B2 (de) 1972-07-27
US3646280A (en) 1972-02-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees