IT968373B - Microfono a condensatore e metodo di fabbricazione dello stesso - Google Patents
Microfono a condensatore e metodo di fabbricazione dello stessoInfo
- Publication number
- IT968373B IT968373B IT7228720A IT2872072A IT968373B IT 968373 B IT968373 B IT 968373B IT 7228720 A IT7228720 A IT 7228720A IT 2872072 A IT2872072 A IT 2872072A IT 968373 B IT968373 B IT 968373B
- Authority
- IT
- Italy
- Prior art keywords
- manufacturing
- same
- condenser microphone
- microphone
- condenser
- Prior art date
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)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1971078484U JPS5221046Y2 (it) | 1971-08-31 | 1971-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT968373B true IT968373B (it) | 1974-03-20 |
Family
ID=13663251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7228720A IT968373B (it) | 1971-08-31 | 1972-08-31 | Microfono a condensatore e metodo di fabbricazione dello stesso |
Country Status (8)
Country | Link |
---|---|
US (1) | US3775572A (it) |
JP (1) | JPS5221046Y2 (it) |
CA (1) | CA946508A (it) |
DE (1) | DE2242806C2 (it) |
FR (1) | FR2151061B1 (it) |
GB (1) | GB1384418A (it) |
IT (1) | IT968373B (it) |
NL (1) | NL177879C (it) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5618080Y2 (it) * | 1974-09-14 | 1981-04-27 | ||
JPS5411857Y2 (it) * | 1975-11-14 | 1979-05-26 | ||
US4321432A (en) * | 1978-12-23 | 1982-03-23 | Tokyo Shibaura Denki Kabushiki Kaisha | Electrostatic microphone |
SE428081B (sv) * | 1981-10-07 | 1983-05-30 | Ericsson Telefon Ab L M | Tilledningsram for en elektretmikrofon |
US4492825A (en) * | 1982-07-28 | 1985-01-08 | At&T Bell Laboratories | Electroacoustic transducer |
DE8412483U1 (de) * | 1984-04-21 | 1988-11-17 | Eugen Beyer, Elektrotechnische Fabrik GmbH & Co, 7100 Heilbronn | Kondensatormikrofon |
US4767973A (en) * | 1987-07-06 | 1988-08-30 | Sarcos Incorporated | Systems and methods for sensing position and movement |
US5854846A (en) * | 1996-09-06 | 1998-12-29 | Northrop Grumman Corporation | Wafer fabricated electroacoustic transducer |
DE19742249C2 (de) * | 1997-09-25 | 1999-08-05 | Georg Neumann Gmbh Berlin | Mikrophon |
EP1183906A4 (en) * | 1999-04-12 | 2008-01-23 | Knowles Electronics Llc | PACKAGE FOR MICRO-FACTORY SILICON MICROPHONE CONDENSER |
JP3861006B2 (ja) * | 2000-04-26 | 2006-12-20 | ホシデン株式会社 | 半導体エレクトレットコンデンサマイクロホン |
KR100331600B1 (ko) * | 2000-05-22 | 2002-04-06 | 김낙현 | 콘덴서 마이크로폰의 제조방법 |
US7062058B2 (en) * | 2001-04-18 | 2006-06-13 | Sonion Nederland B.V. | Cylindrical microphone having an electret assembly in the end cover |
US6937735B2 (en) * | 2001-04-18 | 2005-08-30 | SonionMicrotronic Néderland B.V. | Microphone for a listening device having a reduced humidity coefficient |
US7136496B2 (en) * | 2001-04-18 | 2006-11-14 | Sonion Nederland B.V. | Electret assembly for a microphone having a backplate with improved charge stability |
US8280082B2 (en) * | 2002-10-08 | 2012-10-02 | Sonion Nederland B.V. | Electret assembly for a microphone having a backplate with improved charge stability |
KR101276353B1 (ko) * | 2011-12-09 | 2013-06-24 | 주식회사 비에스이 | 다기능 마이크로폰 조립체 및 그 제조방법 |
CN203708424U (zh) * | 2013-12-30 | 2014-07-09 | 瑞声声学科技(深圳)有限公司 | 麦克风 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3300585A (en) * | 1963-09-04 | 1967-01-24 | Northern Electric Co | Self-polarized electrostatic microphone-semiconductor amplifier combination |
DE1252258C2 (de) * | 1965-04-13 | 1974-06-20 | Nach dem elektrostatischen prinzip arbeitender elektroakustischer wandler und verfahren zu seiner herstellung | |
US3436492A (en) * | 1966-01-17 | 1969-04-01 | Northern Electric Co | Field effect electroacoustic transducer |
JPS5252581Y1 (it) * | 1970-10-08 | 1977-11-30 |
-
1971
- 1971-08-31 JP JP1971078484U patent/JPS5221046Y2/ja not_active Expired
-
1972
- 1972-08-25 CA CA150,181A patent/CA946508A/en not_active Expired
- 1972-08-29 US US00284466A patent/US3775572A/en not_active Expired - Lifetime
- 1972-08-29 NL NLAANVRAGE7211755,A patent/NL177879C/xx not_active IP Right Cessation
- 1972-08-29 GB GB4005772A patent/GB1384418A/en not_active Expired
- 1972-08-31 DE DE2242806A patent/DE2242806C2/de not_active Expired
- 1972-08-31 FR FR7231011A patent/FR2151061B1/fr not_active Expired
- 1972-08-31 IT IT7228720A patent/IT968373B/it active
Also Published As
Publication number | Publication date |
---|---|
FR2151061A1 (it) | 1973-04-13 |
GB1384418A (en) | 1975-02-19 |
FR2151061B1 (it) | 1977-01-14 |
CA946508A (en) | 1974-04-30 |
NL177879C (nl) | 1985-12-02 |
US3775572A (en) | 1973-11-27 |
DE2242806C2 (de) | 1982-07-08 |
JPS5221046Y2 (it) | 1977-05-14 |
NL7211755A (it) | 1973-03-02 |
NL177879B (nl) | 1985-07-01 |
JPS4835339U (it) | 1973-04-27 |
DE2242806A1 (de) | 1973-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH528198A (de) | Hörgerät | |
IT998785B (it) | Fotocatodo a trasmissione e metodo di fabbricazione dello stesso | |
IT968373B (it) | Microfono a condensatore e metodo di fabbricazione dello stesso | |
IT950496B (it) | Metilol glicidileteri | |
AR194234A1 (es) | Ftalocianina de metal de la forma pi | |
IT971659B (it) | Lastre metalliche composite e metodo per fabbricare le stesse | |
BE790518A (fr) | Production et application de perfluoro-alcane-sulfonamides | |
TR17051A (tr) | Imidazolidinon-(2)tuervleri,bunlarin imaline mahsus usul ve bunlarin herbisidler olarak kullanilmalari | |
IT1001725B (it) | Cinghie trapezoidale e suc proce dimento di fabbricazione | |
IT1028325B (it) | Transistore bipolare e metodo di fabbricazione dello stesso | |
SU441704A3 (ru) | Способ получения пропионксилидида | |
IT971012B (it) | Sacchetto filtrante allungato e metodo di fabbricazione dello stesso | |
IT975416B (it) | Macchina e procedimento per la fabbricazione di sigarette con filtro | |
FI53354C (fi) | Kompressorenhet foer kylapparater | |
SU442592A3 (ru) | Способ получения спиртов и/или простых эфиров | |
IT995885B (it) | Componente a semiconduttore e meto do per la fabbricazione dello stesso | |
IT1010922B (it) | Dispositivo a rifrangenza e metodo di fabbricazione dello stesso | |
IT955894B (it) | Compressore | |
IT969818B (it) | Elemento filettato di fissaggio e metodo di fabbricazione dello stesso | |
IT999848B (it) | Elemento combustibile nucleare e metodo di produzione dello stesso | |
SU442605A3 (ru) | Способ получения антибиотика | |
IT1000224B (it) | Processo di fabbricazione di composti alogenofenolsolfonici ed eventualmente di alogenofenoli | |
IT967968B (it) | Fabbricazione di isocianati | |
IT1009603B (it) | Dispositivo semiconduttore e metodo di fabbricazione dello stesso | |
IT953825B (it) | Procedimento ed apparecchiatura di formatura |