BR7208381D0 - Microfone eletrete - Google Patents

Microfone eletrete

Info

Publication number
BR7208381D0
BR7208381D0 BR008381/72A BR838172A BR7208381D0 BR 7208381 D0 BR7208381 D0 BR 7208381D0 BR 008381/72 A BR008381/72 A BR 008381/72A BR 838172 A BR838172 A BR 838172A BR 7208381 D0 BR7208381 D0 BR 7208381D0
Authority
BR
Brazil
Prior art keywords
eletrete
microphone
eletrete microphone
Prior art date
Application number
BR008381/72A
Other languages
English (en)
Portuguese (pt)
Inventor
J Hedman
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR7208381D0 publication Critical patent/BR7208381D0/pt

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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49226—Electret making

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
BR008381/72A 1971-12-02 1972-11-29 Microfone eletrete BR7208381D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15456/71A SE362571B (en:Method) 1971-12-02 1971-12-02

Publications (1)

Publication Number Publication Date
BR7208381D0 true BR7208381D0 (pt) 1973-08-30

Family

ID=20300673

Family Applications (1)

Application Number Title Priority Date Filing Date
BR008381/72A BR7208381D0 (pt) 1971-12-02 1972-11-29 Microfone eletrete

Country Status (16)

Country Link
US (1) US3812575A (en:Method)
JP (1) JPS5816000B2 (en:Method)
AU (1) AU467222B2 (en:Method)
BR (1) BR7208381D0 (en:Method)
CA (1) CA961974A (en:Method)
CH (1) CH555123A (en:Method)
DE (1) DE2257358C3 (en:Method)
DK (1) DK141150B (en:Method)
ES (1) ES409005A1 (en:Method)
FI (1) FI57679C (en:Method)
FR (1) FR2162194B1 (en:Method)
GB (1) GB1365257A (en:Method)
IT (1) IT971396B (en:Method)
NL (1) NL7216115A (en:Method)
NO (1) NO132015C (en:Method)
SE (1) SE362571B (en:Method)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896274A (en) * 1973-10-04 1975-07-22 Thermo Electron Corp Electret earphone
SE7410408L (sv) * 1974-08-15 1976-01-19 Ericsson Telefon Ab L M Forfarande for framstellning av en elektretmikrofon med ett noggrant bestemt luftgap.
JPS5636233Y2 (en:Method) * 1974-12-27 1981-08-26
US4070741A (en) * 1976-09-27 1978-01-31 Genrad Inc. Method of making an electret acoustic transducer
JPS53100228U (en:Method) * 1976-12-27 1978-08-14
SE398588B (sv) * 1977-03-23 1977-12-27 Ericsson Telefon Ab L M Temperaturstabil elektretmikrofon
JPS5754399Y2 (en:Method) * 1978-02-20 1982-11-25
GB2079056B (en) * 1980-06-30 1985-04-17 Tokyo Shibaura Electric Co Electret device
GB2079053B (en) * 1980-06-30 1984-03-28 Tokyo Shibaura Electric Co Electret device
US4429190A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Continuous strip electret transducer array
DE8531503U1 (de) * 1985-11-07 1987-03-05 Siemens AG, 1000 Berlin und 8000 München Röntgenstrahler
US4767973A (en) * 1987-07-06 1988-08-30 Sarcos Incorporated Systems and methods for sensing position and movement
JPH02149199A (ja) * 1988-11-30 1990-06-07 Matsushita Electric Ind Co Ltd エレクトレットコンデンサマイクロホン
US5408534A (en) * 1992-03-05 1995-04-18 Knowles Electronics, Inc. Electret microphone assembly, and method of manufacturer
US5647007A (en) * 1994-12-22 1997-07-08 Helen Of Troy Limited Optimized sound components for hair dryer stereo system
AT410498B (de) * 2001-02-20 2003-05-26 Akg Acoustics Gmbh Elektroakustische kapsel
TW200629954A (en) * 2004-11-02 2006-08-16 Hosiden Corp Condenser microphone and method for manufacturing substrate for the same
JP4245625B2 (ja) * 2006-09-29 2009-03-25 ホシデン株式会社 エレクトレットコンデンサマイクロホン
JP5172198B2 (ja) * 2007-04-27 2013-03-27 三洋電機株式会社 エレクトレット素子および静電動作装置
JP4944760B2 (ja) * 2007-12-27 2012-06-06 ホシデン株式会社 エレクトレットコンデンサマイクロホン
TWI378733B (en) * 2008-10-27 2012-12-01 Htc Corp Method for manufacturing electret diaphragm
KR101276350B1 (ko) * 2011-07-04 2013-06-18 주식회사 비에스이 스프링 베이스를 이용한 접합형 콘덴서 마이크로폰
US9583456B2 (en) 2013-11-22 2017-02-28 Invensas Corporation Multiple bond via arrays of different wire heights on a same substrate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1330592A (fr) * 1961-08-07 1963-06-21 Western Electric Co Transducteur électrostatique
US3118022A (en) * 1961-08-07 1964-01-14 Bell Telephone Labor Inc Electroacoustic transducer
FR1354631A (fr) * 1962-05-22 1964-03-06 Western Electric Co Transducteur électroacoustique
US3436492A (en) * 1966-01-17 1969-04-01 Northern Electric Co Field effect electroacoustic transducer
US3612778A (en) * 1967-05-15 1971-10-12 Thermo Electron Corp Electret acoustic transducer and method of making

Also Published As

Publication number Publication date
AU4917672A (en) 1974-05-23
US3812575A (en) 1974-05-28
ES409005A1 (es) 1975-10-16
JPS5816000B2 (ja) 1983-03-29
CA961974A (en) 1975-01-28
FI57679B (fi) 1980-05-30
DK141150B (da) 1980-01-21
FR2162194B1 (en:Method) 1976-06-04
NL7216115A (en:Method) 1973-06-05
DK141150C (en:Method) 1980-07-07
GB1365257A (en) 1974-08-29
IT971396B (it) 1974-04-30
CH555123A (de) 1974-10-15
SE362571B (en:Method) 1973-12-10
DE2257358C3 (de) 1980-09-25
NO132015B (en:Method) 1975-05-26
DE2257358A1 (de) 1973-06-14
NO132015C (en:Method) 1975-09-03
FI57679C (fi) 1980-09-10
FR2162194A1 (en:Method) 1973-07-13
JPS4864917A (en:Method) 1973-09-07
DE2257358B2 (de) 1976-01-15
AU467222B2 (en) 1975-11-27

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