SE398588B - Temperaturstabil elektretmikrofon - Google Patents

Temperaturstabil elektretmikrofon

Info

Publication number
SE398588B
SE398588B SE7703355A SE7703355A SE398588B SE 398588 B SE398588 B SE 398588B SE 7703355 A SE7703355 A SE 7703355A SE 7703355 A SE7703355 A SE 7703355A SE 398588 B SE398588 B SE 398588B
Authority
SE
Sweden
Prior art keywords
temperature stable
stable electric
electric microphone
microphone
temperature
Prior art date
Application number
SE7703355A
Other languages
English (en)
Swedish (sv)
Inventor
N-E Agneus
H-E Mansson
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
Priority to SE7703355A priority Critical patent/SE398588B/xx
Publication of SE398588B publication Critical patent/SE398588B/xx
Priority to US05/883,693 priority patent/US4142073A/en
Priority to DE19782810813 priority patent/DE2810813A1/de
Priority to GB10530/78A priority patent/GB1575874A/en
Priority to AU34254/78A priority patent/AU516257B2/en
Priority to FR7807902A priority patent/FR2385288A1/fr
Priority to NL7803009A priority patent/NL7803009A/xx
Priority to CH305178A priority patent/CH626765A5/de
Priority to CA299,505A priority patent/CA1084153A/en
Priority to DK128378AA priority patent/DK142340B/da
Priority to NO781052A priority patent/NO140450C/no
Priority to ES468174A priority patent/ES468174A1/es
Priority to IT21534/78A priority patent/IT1093606B/it

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)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
SE7703355A 1977-03-23 1977-03-23 Temperaturstabil elektretmikrofon SE398588B (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE7703355A SE398588B (sv) 1977-03-23 1977-03-23 Temperaturstabil elektretmikrofon
US05/883,693 US4142073A (en) 1977-03-23 1978-03-06 Temperature-stable electret microphone with embossed, small area, electret
DE19782810813 DE2810813A1 (de) 1977-03-23 1978-03-13 Temperaturstabiles elektret-mikrofon
GB10530/78A GB1575874A (en) 1977-03-23 1978-03-16 Electret microphone
FR7807902A FR2385288A1 (fr) 1977-03-23 1978-03-17 Microphone a electret stabilise en temperature
AU34254/78A AU516257B2 (en) 1977-03-23 1978-03-17 Temperature-stable electret microphone
NL7803009A NL7803009A (nl) 1977-03-23 1978-03-20 Temperatuurstabiele electreetmicrofoon.
CH305178A CH626765A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-03-23 1978-03-21
CA299,505A CA1084153A (en) 1977-03-23 1978-03-22 Temperature-stable electret microphone with embossed, small area, electret
DK128378AA DK142340B (da) 1977-03-23 1978-03-22 Temperaturstabil elektretmikrofon.
NO781052A NO140450C (no) 1977-03-23 1978-03-22 Temperaturstabil elektretmikrofon.
ES468174A ES468174A1 (es) 1977-03-23 1978-03-22 Microfono de electreto perfeccionado, termoestable
IT21534/78A IT1093606B (it) 1977-03-23 1978-03-23 Microfono a elettrete stabile alla temperatura

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7703355A SE398588B (sv) 1977-03-23 1977-03-23 Temperaturstabil elektretmikrofon

Publications (1)

Publication Number Publication Date
SE398588B true SE398588B (sv) 1977-12-27

Family

ID=20330819

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7703355A SE398588B (sv) 1977-03-23 1977-03-23 Temperaturstabil elektretmikrofon

Country Status (13)

Country Link
US (1) US4142073A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU516257B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1084153A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH626765A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2810813A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK142340B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES468174A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2385288A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1575874A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1093606B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7803009A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO140450C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE398588B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
US4418246A (en) * 1980-10-29 1983-11-29 Tibbetts Industries, Inc. Cell assembly for electret transducer
US5442595A (en) * 1994-04-22 1995-08-15 Xecutek Corporation Capacitance-type ultrasonic transducer
DE19703311A1 (de) * 1997-01-30 1998-08-06 Sennheiser Electronic Grenzflächenmikrofon
DE19715365C2 (de) * 1997-04-11 1999-03-25 Sennheiser Electronic Kondensatormikrofon
US6741709B2 (en) * 2000-12-20 2004-05-25 Shure Incorporated Condenser microphone assembly
US7062058B2 (en) * 2001-04-18 2006-06-13 Sonion Nederland B.V. Cylindrical microphone having an electret assembly in the end cover
CN1883020B (zh) 2003-11-20 2011-02-02 松下电器产业株式会社 驻极体和驻极体电容器
WO2005086534A1 (ja) * 2004-03-03 2005-09-15 Matsushita Electric Industrial Co., Ltd. エレクトレットコンデンサーマイクロフォンユニット
KR20060129041A (ko) * 2004-03-05 2006-12-14 마츠시타 덴끼 산교 가부시키가이샤 일렉트릿 컨덴서
WO2011001195A1 (en) 2009-06-29 2011-01-06 Nokia Corporation Temperature compensated microphone

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328653A (en) * 1966-09-22 1967-06-27 Budd Co Thin film pressure transducer
USRE28420E (en) 1967-05-15 1975-05-13 Blbctret acoustic transducer
US3821490A (en) * 1970-10-09 1974-06-28 Chester C Pond Electroacoustic transducer especially electrostatic speakers and systems
SE362571B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-12-02 1973-12-10 Ericsson Telefon Ab L M
SE382297B (sv) * 1974-08-15 1976-01-19 Ericsson Telefon Ab L M Forfarande for framstellning av en elektretmikrofon med ett noggrant bestemt luftgap.
US4070741A (en) * 1976-09-27 1978-01-31 Genrad Inc. Method of making an electret acoustic transducer
US4063050A (en) * 1976-12-30 1977-12-13 Industrial Research Products, Inc. Acoustic transducer with improved electret assembly

Also Published As

Publication number Publication date
DE2810813A1 (de) 1978-09-28
AU516257B2 (en) 1981-05-28
GB1575874A (en) 1980-10-01
US4142073A (en) 1979-02-27
CA1084153A (en) 1980-08-19
NO140450B (no) 1979-05-21
NO140450C (no) 1979-08-29
DK128378A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-09-24
NL7803009A (nl) 1978-09-26
IT1093606B (it) 1985-07-19
NO781052L (no) 1978-09-26
AU3425478A (en) 1979-09-20
FR2385288A1 (fr) 1978-10-20
FR2385288B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1984-03-23
CH626765A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-11-30
DK142340C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-03-23
DK142340B (da) 1980-10-13
IT7821534A0 (it) 1978-03-23
ES468174A1 (es) 1979-01-01

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