JPS56134899A - Electroacoustic converter - Google Patents
Electroacoustic converterInfo
- Publication number
- JPS56134899A JPS56134899A JP2828381A JP2828381A JPS56134899A JP S56134899 A JPS56134899 A JP S56134899A JP 2828381 A JP2828381 A JP 2828381A JP 2828381 A JP2828381 A JP 2828381A JP S56134899 A JPS56134899 A JP S56134899A
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- housing
- resonator
- rear chamber
- 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.)
- Granted
Links
- 230000007613 environmental effect Effects 0.000 abstract 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 true JPS56134899A (en) | 1981-10-21 |
JPS6142480B2 JPS6142480B2 (ja) | 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)
Country | Link |
---|---|
US (1) | US4379212A (ja) |
EP (1) | EP0035220B1 (ja) |
JP (1) | JPS56134899A (ja) |
AT (1) | ATE7999T1 (ja) |
AU (1) | AU542702B2 (ja) |
BR (1) | BR8101223A (ja) |
DE (1) | DE3007834A1 (ja) |
FI (1) | FI76665C (ja) |
ZA (1) | ZA811321B (ja) |
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 (ja) * | 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 |
EP0035220A1 (de) | 1981-09-09 |
AU542702B2 (en) | 1985-03-07 |
DE3007834A1 (de) | 1981-09-17 |
JPS6142480B2 (ja) | 1986-09-20 |
FI810623L (fi) | 1981-08-30 |
ZA811321B (en) | 1982-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56134899A (en) | Electroacoustic converter | |
IL52634A (en) | Sound suppressor liners with acoustically asymmetrical cavities | |
DK1064823T3 (da) | Retningsmikrofonanordning | |
GB1363550A (en) | Electro-acoustic transducer device | |
GB2081052B (en) | An electroacoustic transducer assembly | |
GB2041699B (en) | Diaphragm arrangement for electro-acoustic transducers | |
DE3785584D1 (de) | Fernsprechgeraet mit wartestellung. | |
US3730046A (en) | Orally operated electronic musical instrument | |
ES2010038A6 (es) | Un transductor de emision acustica y un oscilador electrico. | |
US4376232A (en) | Electro-acoustic transducer | |
EE200000570A (et) | Telefon vahenditega madalas sagedusalas sageduskarakteristiku tõstmiseks | |
GB963853A (en) | Loudspeakers | |
TW370762B (en) | Element for reproducing and/or recording sound | |
ES8104068A1 (es) | Perfeccionamientos introducidos en los fonoabsorbedores paracamaras anecoicas | |
ATE11478T1 (de) | Piezoelektrischer tonrufwandler. | |
FR2380704A7 (fr) | Enceinte acoustique | |
ES363113A1 (es) | Un sistema de transmision electroacustica para su empleo enuna sala de audiciones. | |
AU6008880A (en) | Electronic musical tone generation | |
AU609395B2 (en) | Electroacoustic transducer device | |
FR2343388A1 (fr) | Enceinte acoustique perfectionnee | |
GB792312A (en) | Improvements in and relating to transducers | |
JPS5390919A (en) | Microphone devcice | |
JPS5256519A (en) | Electroacoustic transducer | |
JPS5768989A (en) | Microphone with echo device | |
GB920172A (en) | Improvements in or relating to devices for producing acoustic signals |