JPS6142480B2 - - Google Patents
Info
- Publication number
- JPS6142480B2 JPS6142480B2 JP56028283A JP2828381A JPS6142480B2 JP S6142480 B2 JPS6142480 B2 JP S6142480B2 JP 56028283 A JP56028283 A JP 56028283A JP 2828381 A JP2828381 A JP 2828381A JP S6142480 B2 JPS6142480 B2 JP S6142480B2
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- acoustic transducer
- sound wave
- neck
- helmholtz resonator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000013016 damping Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Electrophonic Musical Instruments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Electroluminescent Light Sources (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Surgical Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803007834 DE3007834A1 (de) | 1980-02-29 | 1980-02-29 | Elektroakustischer wandler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56134899A JPS56134899A (en) | 1981-10-21 |
| JPS6142480B2 true JPS6142480B2 (US20090163788A1-20090625-C00002.png) | 1986-09-20 |
Family
ID=6095966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2828381A Granted JPS56134899A (en) | 1980-02-29 | 1981-02-27 | Electroacoustic converter |
Country Status (9)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2542552B1 (fr) * | 1983-03-07 | 1986-04-11 | Thomson Csf | Transducteur electroacoustique a diaphragme piezo-electrique |
| ATE28715T1 (de) * | 1984-04-11 | 1987-08-15 | Siemens Ag | Piezoelektrisch-akustischer wandler fuer elektroakustische kapseln mit konstruktionsausfuehrung fuer die montage. |
| DE3425176A1 (de) * | 1984-07-09 | 1986-02-20 | Fernsprech Und Signalbau Kg Sc | Piezoelektrische fernsprechkapsel |
| DE3528212A1 (de) * | 1984-08-10 | 1986-02-20 | Passac Pty. Ltd., Chippendale, New South Wales | Helmholtz-resonanz-simulator |
| AU588933B2 (en) * | 1985-12-10 | 1989-09-28 | Alcatel Australia Limited | Improvements in transducers |
| JP2783839B2 (ja) * | 1989-03-29 | 1998-08-06 | 三洋電機株式会社 | スピーカ装置 |
| DE4117598C2 (de) * | 1991-05-29 | 1993-12-16 | Fernsprech Und Signalbau Gmbh | Fernsprechapparat |
| US6279946B1 (en) | 1998-06-09 | 2001-08-28 | Automotive Technologies International Inc. | Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients |
| US6856876B2 (en) | 1998-06-09 | 2005-02-15 | Automotive Technologies International, Inc. | Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients |
| US6517107B2 (en) | 1998-06-09 | 2003-02-11 | Automotive Technologies International, Inc. | Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients |
| US5406161A (en) * | 1994-05-24 | 1995-04-11 | Industrial Technology Research Institute | Piezoelectric composite receiver |
| IT1277195B1 (it) * | 1995-06-28 | 1997-11-05 | Alcatel Dial Face Spa | Perfezionamento nel sistema di equalizzazione di un trasduttore telefonico di tipo piezoceramico |
| TW431113B (en) * | 1998-04-22 | 2001-04-21 | Hokuriku Elect Ind | Piezoelectric acoustic device |
| US11229927B2 (en) | 2015-10-21 | 2022-01-25 | Agency For Science, Technology And Research | Ultrasound transducer and method of forming ihe same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2252846A (en) * | 1938-09-30 | 1941-08-19 | Associated Electric Lab Inc | Acoustic device |
| BE562680A (US20090163788A1-20090625-C00002.png) * | 1956-11-26 | |||
| DE1139547B (de) * | 1959-05-23 | 1962-11-15 | Holmberg & Co | Schallwandler und Verfahren zu seiner Herstellung |
| DE2322475C2 (de) * | 1972-02-09 | 1981-10-08 | Fernsprech- Und Signalbau Lehner & Co Kg, 4300 Essen | Elektroakustischer Wandler, insbesondere für Sprech- und Hörkapseln von Fernsprechapparaten |
| DE2206093C3 (de) * | 1972-02-09 | 1981-04-02 | Fernsprech- Und Signalbau Lehner & Co Kg, 4300 Essen | Elektroakustischer Wandler, insbesondere für Sprech- und Hörkapseln von Fernsprechapparaten |
| DE2246981B2 (de) * | 1972-09-25 | 1974-07-18 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Anordnung zur Frequenzgangbeeinflussung elektroakustischer Wandler |
| AT337793B (de) * | 1975-10-02 | 1977-07-25 | Akg Akustische Kino Geraete | Akustischer reibungswiderstand und vorrichtung zu seiner herstellung |
| DE2831411C2 (de) * | 1978-07-17 | 1983-10-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Elektroakustischer Wandler mit mit piezoelektrischer Schicht versehener Membran |
-
1980
- 1980-02-29 DE DE19803007834 patent/DE3007834A1/de not_active Withdrawn
-
1981
- 1981-02-24 AT AT81101323T patent/ATE7999T1/de active
- 1981-02-24 US US06/237,692 patent/US4379212A/en not_active Expired - Fee Related
- 1981-02-24 EP EP81101323A patent/EP0035220B1/de not_active Expired
- 1981-02-27 BR BR8101223A patent/BR8101223A/pt unknown
- 1981-02-27 JP JP2828381A patent/JPS56134899A/ja active Granted
- 1981-02-27 AU AU67904/81A patent/AU542702B2/en not_active Ceased
- 1981-02-27 FI FI810623A patent/FI76665C/fi not_active IP Right Cessation
- 1981-02-27 ZA ZA00811321A patent/ZA811321B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR8101223A (pt) | 1981-09-01 |
| ATE7999T1 (de) | 1984-06-15 |
| EP0035220B1 (de) | 1984-06-13 |
| FI76665C (fi) | 1988-11-10 |
| AU6790481A (en) | 1981-09-03 |
| US4379212A (en) | 1983-04-05 |
| FI76665B (fi) | 1988-07-29 |
| JPS56134899A (en) | 1981-10-21 |
| EP0035220A1 (de) | 1981-09-09 |
| AU542702B2 (en) | 1985-03-07 |
| DE3007834A1 (de) | 1981-09-17 |
| FI810623L (fi) | 1981-08-30 |
| ZA811321B (en) | 1982-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4504703A (en) | Electro-acoustic transducer | |
| JP5759641B1 (ja) | 電気音響変換装置及び電子機器 | |
| JPS6142480B2 (US20090163788A1-20090625-C00002.png) | ||
| US4751419A (en) | Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member | |
| EP0146933B1 (en) | Sound generating apparatus | |
| US4292561A (en) | Attenuating means for electroacoustic transducer | |
| US5517574A (en) | Dual function transducer housing | |
| US11968487B2 (en) | Adapters for microphones and combinations thereof | |
| KR100275549B1 (ko) | 압전형 전기음향 변환기 | |
| US6169810B1 (en) | Electroacoustic transducer | |
| US5889873A (en) | Piezoelectric acoustic transducer | |
| US10779077B2 (en) | Microphone cavity | |
| US3896274A (en) | Electret earphone | |
| US9094748B2 (en) | Dynamic microphone unit and dynamic microphone | |
| US4376232A (en) | Electro-acoustic transducer | |
| US4027115A (en) | Electroacoustic sound generator | |
| US4790021A (en) | Electrostatic transducer | |
| JP4989390B2 (ja) | ダイナミックマイクロホン | |
| KR100464700B1 (ko) | 지향성 콘덴서 마이크로폰 | |
| US3004177A (en) | sobel etal | |
| JPS6246399Y2 (US20090163788A1-20090625-C00002.png) | ||
| JP4934532B2 (ja) | コンデンサーマイクロホンユニット | |
| US5030872A (en) | Electro-acoustic transducer | |
| US8406451B2 (en) | Capacitive electroacoustic transducer and microphone | |
| KR100629688B1 (ko) | 전면음 단일지향성 마이크로폰 |
