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 FR7807902A priority patent/FR2385288A1/fr
Priority to AU34254/78A priority patent/AU516257B2/en
Priority to NL7803009A priority patent/NL7803009A/xx
Priority to CH305178A priority patent/CH626765A5/de
Priority to DK128378AA priority patent/DK142340B/da
Priority to ES468174A priority patent/ES468174A1/es
Priority to NO781052A priority patent/NO140450C/no
Priority to CA299,505A priority patent/CA1084153A/en
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
AU34254/78A AU516257B2 (en) 1977-03-23 1978-03-17 Temperature-stable electret microphone
FR7807902A FR2385288A1 (fr) 1977-03-23 1978-03-17 Microphone a electret stabilise en temperature
NL7803009A NL7803009A (nl) 1977-03-23 1978-03-20 Temperatuurstabiele electreetmicrofoon.
CH305178A CH626765A5 (xx) 1977-03-23 1978-03-21
DK128378AA DK142340B (da) 1977-03-23 1978-03-22 Temperaturstabil elektretmikrofon.
ES468174A ES468174A1 (es) 1977-03-23 1978-03-22 Microfono de electreto perfeccionado, termoestable
NO781052A NO140450C (no) 1977-03-23 1978-03-22 Temperaturstabil elektretmikrofon.
CA299,505A CA1084153A (en) 1977-03-23 1978-03-22 Temperature-stable electret microphone with embossed, small area, electret
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 (xx)
AU (1) AU516257B2 (xx)
CA (1) CA1084153A (xx)
CH (1) CH626765A5 (xx)
DE (1) DE2810813A1 (xx)
DK (1) DK142340B (xx)
ES (1) ES468174A1 (xx)
FR (1) FR2385288A1 (xx)
GB (1) GB1575874A (xx)
IT (1) IT1093606B (xx)
NL (1) NL7803009A (xx)
NO (1) NO140450C (xx)
SE (1) SE398588B (xx)

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
KR101059364B1 (ko) 2003-11-20 2011-08-24 파나소닉 주식회사 일렉트릿 및 일렉트릿 컨덴서
JP4264103B2 (ja) * 2004-03-03 2009-05-13 パナソニック株式会社 エレクトレットコンデンサーマイクロホン
US7853027B2 (en) * 2004-03-05 2010-12-14 Panasonic Corporation Electret condenser
CN102804807B (zh) 2009-06-29 2015-11-25 诺基亚公司 电子设备、电子装置、移动终端装置以及用于处理电子信号的方法

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 (xx) * 1971-12-02 1973-12-10 Ericsson Telefon Ab L M
SE7410408L (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
NO781052L (no) 1978-09-26
AU3425478A (en) 1979-09-20
FR2385288A1 (fr) 1978-10-20
DK128378A (xx) 1978-09-24
CH626765A5 (xx) 1981-11-30
ES468174A1 (es) 1979-01-01
GB1575874A (en) 1980-10-01
CA1084153A (en) 1980-08-19
DK142340C (xx) 1981-03-23
NO140450C (no) 1979-08-29
NL7803009A (nl) 1978-09-26
US4142073A (en) 1979-02-27
DK142340B (da) 1980-10-13
IT1093606B (it) 1985-07-19
IT7821534A0 (it) 1978-03-23
FR2385288B1 (xx) 1984-03-23
NO140450B (no) 1979-05-21

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