HK30383A - Elecret microphone - Google Patents

Elecret microphone

Info

Publication number
HK30383A
HK30383A HK303/83A HK30383A HK30383A HK 30383 A HK30383 A HK 30383A HK 303/83 A HK303/83 A HK 303/83A HK 30383 A HK30383 A HK 30383A HK 30383 A HK30383 A HK 30383A
Authority
HK
Hong Kong
Prior art keywords
elecret
microphone
elecret microphone
Prior art date
Application number
HK303/83A
Other languages
English (en)
Inventor
Nakagawa Sadayoshi
Shinohara Mitsuharu
Hashimoto Katsutoshi
Original Assignee
Hosiden Electronics Co
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 Hosiden Electronics Co filed Critical Hosiden Electronics Co
Publication of HK30383A publication Critical patent/HK30383A/xx

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
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
HK303/83A 1978-02-20 1983-08-25 Elecret microphone HK30383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978020575U JPS5754399Y2 (xx) 1978-02-20 1978-02-20

Publications (1)

Publication Number Publication Date
HK30383A true HK30383A (en) 1983-09-02

Family

ID=12030992

Family Applications (1)

Application Number Title Priority Date Filing Date
HK303/83A HK30383A (en) 1978-02-20 1983-08-25 Elecret microphone

Country Status (6)

Country Link
US (1) US4236051A (xx)
JP (1) JPS5754399Y2 (xx)
DE (1) DE2906497A1 (xx)
GB (1) GB2015299B (xx)
HK (1) HK30383A (xx)
SG (1) SG9583G (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029161B (en) * 1978-08-21 1983-01-26 Hosiden Electronics Co Electret microphone
JPS5756640Y2 (xx) * 1978-09-30 1982-12-06
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
JPS622879Y2 (xx) * 1981-03-25 1987-01-22
US4516428A (en) * 1982-10-28 1985-05-14 Pan Communications, Inc. Acceleration vibration detector
US4891843A (en) * 1983-02-24 1990-01-02 At&T Technologies, Inc. Electret microphone
EP0132039A3 (en) * 1983-06-09 1986-07-23 Robert Bacon Pepper Moisture resistant cover for an electroacoustic transducer
US4764690A (en) * 1986-06-18 1988-08-16 Lectret S.A. Electret transducing
KR200218653Y1 (ko) * 2000-11-01 2001-04-02 주식회사비에스이 일렉트렛 콘덴서 마이크로폰
US7065224B2 (en) * 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
US7415121B2 (en) 2004-10-29 2008-08-19 Sonion Nederland B.V. Microphone with internal damping
JP4396573B2 (ja) 2005-05-10 2010-01-13 セイコーエプソン株式会社 ロール紙搬送装置および印刷装置
JP4366342B2 (ja) 2005-07-08 2009-11-18 ホシデン株式会社 実装基板及びそれに載置されるマイクロホン
KR101764314B1 (ko) * 2011-10-24 2017-08-04 한국전자통신연구원 음향 센서 및 그 제조 방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588382A (en) * 1967-10-11 1971-06-28 Northern Electric Co Directional electret transducer
JPS5252581Y1 (xx) * 1970-10-08 1977-11-30
JPS4861126A (xx) * 1971-12-02 1973-08-27
SE362571B (xx) * 1971-12-02 1973-12-10 Ericsson Telefon Ab L M
US3816671A (en) * 1972-04-06 1974-06-11 Thermo Electron Corp Electret transducer cartridge and case
NL7313455A (nl) * 1973-10-01 1975-04-03 Philips Nv Mikrofoon met elektrostatische capsule.
US3896274A (en) * 1973-10-04 1975-07-22 Thermo Electron Corp Electret earphone
US4046974A (en) * 1976-10-01 1977-09-06 Bell Telephone Laboratories, Incorporated Electroacoustic transducer with springs forming electrical interconnections as a result of assembly

Also Published As

Publication number Publication date
DE2906497C2 (xx) 1988-06-16
JPS5754399Y2 (xx) 1982-11-25
GB2015299B (en) 1982-05-06
JPS54123825U (xx) 1979-08-30
US4236051A (en) 1980-11-25
DE2906497A1 (de) 1979-08-23
GB2015299A (en) 1979-09-05
SG9583G (en) 1983-12-16

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Legal Events

Date Code Title Description
PE Patent expired