GB2018089A - Electro-acoustic transducers - Google Patents
Electro-acoustic transducersInfo
- Publication number
- GB2018089A GB2018089A GB7848797A GB7848797A GB2018089A GB 2018089 A GB2018089 A GB 2018089A GB 7848797 A GB7848797 A GB 7848797A GB 7848797 A GB7848797 A GB 7848797A GB 2018089 A GB2018089 A GB 2018089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducers
- acoustic
- electro
- acoustic transducers
- magnetic
- 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.)
- Withdrawn
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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/027—Electrical or mechanical reduction of yoke vibration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
An electroacoustic transducer device comprises an acoustic compartment 13, and a pair of opposed electro- acoustic transducer surfaces 11, 12 adapted to acoustically drive, or be driven by, said acoustic compartment, whereby, in use, at any instant each of said surfaces 11, 12 is moving in a direction opposite to the direction of movement of the other said surface. The device may be an earphone and the arrangement seeks to reduce mechanical feedback and, where the transducers are of magnetic type, magnetic feedback. The transducers may be of moving armature type, as shown or may be dynamic, condenser, electret, ceramic or piezoelectric polymer transducers. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPD281177 | 1977-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2018089A true GB2018089A (en) | 1979-10-10 |
Family
ID=3767327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7848797A Withdrawn GB2018089A (en) | 1977-12-19 | 1978-12-15 | Electro-acoustic transducers |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS54148309A (en) |
AU (1) | AU4256778A (en) |
DE (1) | DE2854912A1 (en) |
DK (1) | DK571378A (en) |
GB (1) | GB2018089A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH1875H (en) * | 1996-07-22 | 2000-10-03 | Microtronic A/S | Electroacoustic transducer |
EP1341395A1 (en) * | 2002-05-24 | 2003-09-03 | Phonak Ag | Hearing device |
WO2006122010A1 (en) * | 2005-05-09 | 2006-11-16 | Knowles Electronics, Llc | Conjoined receiver and microphone assembly |
WO2007115304A2 (en) * | 2006-04-04 | 2007-10-11 | Knowles Electronics, Llc | Monitor transducer system and manufacturing method thereof |
EP1895811A2 (en) * | 2006-08-28 | 2008-03-05 | Sonion Nederland B.V. | Multiple receivers with a common acoustic spout |
WO2010116006A3 (en) * | 2010-08-03 | 2010-12-29 | Phonak Ag | Receiver system for a hearing instrument |
EP2134107A3 (en) * | 2008-06-11 | 2012-07-04 | Sonion Nederland B.V. | Hearing instrument with improved venting and miniature loudspeaker therefore |
WO2016034563A1 (en) * | 2014-09-04 | 2016-03-10 | USound GmbH | Loudspeaker arrangement |
US10516948B2 (en) | 2017-02-28 | 2019-12-24 | USound GmbH | Loudspeaker arrangement |
DE112021004998T5 (en) | 2020-11-17 | 2023-07-20 | Cummins Power Generation Limited | Valve spring holder with integrated lubricating oil trap |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK159357C (en) * | 1988-03-18 | 1991-03-04 | Oticon As | HEARING EQUIPMENT, NECESSARY FOR EQUIPMENT |
DE10223544C1 (en) * | 2002-05-27 | 2003-07-24 | Siemens Audiologische Technik | Amplifier device for hearing aid with microphone and pick-up coil inputs, has amplifier provided with separate filters for acoustic and inductive feedback compensation |
-
1977
- 1977-12-19 AU AU42567/78A patent/AU4256778A/en active Pending
-
1978
- 1978-12-15 GB GB7848797A patent/GB2018089A/en not_active Withdrawn
- 1978-12-18 JP JP15503878A patent/JPS54148309A/en active Pending
- 1978-12-19 DE DE19782854912 patent/DE2854912A1/en not_active Withdrawn
- 1978-12-19 DK DK571378A patent/DK571378A/en unknown
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH1875H (en) * | 1996-07-22 | 2000-10-03 | Microtronic A/S | Electroacoustic transducer |
EP1341395A1 (en) * | 2002-05-24 | 2003-09-03 | Phonak Ag | Hearing device |
WO2006122010A1 (en) * | 2005-05-09 | 2006-11-16 | Knowles Electronics, Llc | Conjoined receiver and microphone assembly |
US7747032B2 (en) | 2005-05-09 | 2010-06-29 | Knowles Electronics, Llc | Conjoined receiver and microphone assembly |
WO2007115304A2 (en) * | 2006-04-04 | 2007-10-11 | Knowles Electronics, Llc | Monitor transducer system and manufacturing method thereof |
WO2007115304A3 (en) * | 2006-04-04 | 2008-12-31 | Knowles Electronics Llc | Monitor transducer system and manufacturing method thereof |
EP1895811A2 (en) * | 2006-08-28 | 2008-03-05 | Sonion Nederland B.V. | Multiple receivers with a common acoustic spout |
EP1895811A3 (en) * | 2006-08-28 | 2014-08-06 | Sonion Nederland B.V. | Multiple receivers with a common acoustic spout |
EP2134107A3 (en) * | 2008-06-11 | 2012-07-04 | Sonion Nederland B.V. | Hearing instrument with improved venting and miniature loudspeaker therefore |
US8331595B2 (en) | 2008-06-11 | 2012-12-11 | Sonion Nederland Bv | Hearing instrument with improved venting and miniature loudspeaker therefore |
WO2010116006A3 (en) * | 2010-08-03 | 2010-12-29 | Phonak Ag | Receiver system for a hearing instrument |
US9088853B2 (en) | 2010-08-03 | 2015-07-21 | Phonak Ag | Receiver system for a hearing instrument |
WO2016034563A1 (en) * | 2014-09-04 | 2016-03-10 | USound GmbH | Loudspeaker arrangement |
US10085093B2 (en) | 2014-09-04 | 2018-09-25 | USound GmbH | Loudspeaker arrangement |
US10516948B2 (en) | 2017-02-28 | 2019-12-24 | USound GmbH | Loudspeaker arrangement |
DE112021004998T5 (en) | 2020-11-17 | 2023-07-20 | Cummins Power Generation Limited | Valve spring holder with integrated lubricating oil trap |
Also Published As
Publication number | Publication date |
---|---|
DE2854912A1 (en) | 1979-06-21 |
JPS54148309A (en) | 1979-11-20 |
DK571378A (en) | 1979-06-20 |
AU4256778A (en) | 1979-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |