EP1432281B1 - Elektroakustischer Miniaturwandler für ein Hörhilfegerät - Google Patents
Elektroakustischer Miniaturwandler für ein Hörhilfegerät Download PDFInfo
- Publication number
- EP1432281B1 EP1432281B1 EP03027391A EP03027391A EP1432281B1 EP 1432281 B1 EP1432281 B1 EP 1432281B1 EP 03027391 A EP03027391 A EP 03027391A EP 03027391 A EP03027391 A EP 03027391A EP 1432281 B1 EP1432281 B1 EP 1432281B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- transducer
- membrane
- electroacoustic
- miniature
- 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 - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims abstract description 53
- 239000011248 coating agent Substances 0.000 claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 8
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 239000005871 repellent Substances 0.000 abstract description 4
- 230000002940 repellent Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 8
- 241000233866 Fungi Species 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 230000000855 fungicidal effect Effects 0.000 description 5
- 239000008199 coating composition Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000002103 nanocoating Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- -1 silver ions Chemical class 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 210000002939 cerumen Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 210000000613 ear canal Anatomy 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229940100890 silver compound Drugs 0.000 description 1
- 150000003379 silver compounds Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
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
-
- 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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
- H04R1/086—Protective screens, e.g. all weather or wind screens
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Definitions
- the invention relates to an electroacoustic miniature transducer with a traveling diaphragm for use in a hearing aid.
- electroacoustic miniature transducers are used to convert acoustic signals into electrical signals and to convert electrical signals into acoustic signals.
- electroacoustic miniature transducers are used to convert acoustic signals into electrical signals and to convert electrical signals into acoustic signals.
- special requirements are placed on the electroacoustic miniature converter in particular in terms of size and efficiency.
- a micromechanical electroacoustic transducer which is manufactured according to the manufacturing method known from silicon semiconductor technology.
- the converter has at least one carrier body and a piezoelectric layer, on the top and bottom of each electrode is present.
- at least one of the electrodes continues beyond the piezoelectric layer and is formed at least partially as an elastic membrane and carrier layer. This eliminates a membrane and carrier layer low elasticity of semiconductor material.
- the different layers in the known electroacoustic transducer are present because of their electrical properties (function as an electrode or as a piezoelectric layer) or because of their function as a carrier layer.
- electroacoustic miniature transducers When used in a hearing aid, electroacoustic miniature transducers are exposed to extreme external influences. Moisture, fats or alcohols are the main effect on microphones. The listeners, on the other hand, are predominantly gaseous, liquid or solid parts of the cereal via the ear canal exposed, but also moisture (sweat) reaches the listener. In addition, dirt particles can accumulate in the sound channels of the electroacoustic miniature converter. Overall, moisture and pollution often lead to a failure of the electroacoustic miniature transducer and thus the entire hearing system.
- electroacoustic miniature transducers and, in particular, sound channels of the miniature transducers have hitherto been partially protected by means of elaborate covers (screens, gratings, etc.) which must be exchanged or cleaned at regular intervals. This means a subsequent effort for the user.
- the electroacoustic miniature transducers are also used without protection, so that by exposure to atmospheric humidity in practice problems often occur in microphones, e.g. a loss of sensitivity or a change in transfer function due to moisture absorption of the microphone membrane, oxidation, etc ..
- a variety of surface coatings are known from the prior art, through which a dirt, moisture or oil repellent effect can be achieved.
- a coating composition containing polycondensates based on one or more hydrolytic polycondensation-capable compounds of the elements M of main groups III to V and subgroups II to IV of the Periodic Table of the Elements in which polycondensates to at least a part of the central atoms
- at least one organic group G which has at least 2 aliphatic carbon atoms to which at least one fluorine atom is bonded, either directly via one of the carbon atoms or via a linking group A, for coating surfaces of metal, plastics, optionally modified natural substances , Ceramics, concrete, clay and / or glass.
- surface coatings are also known which develop a bactericidal or fungicidal action. This effect may be due, for example, to silver ions contained in the coating which diffuse to the layer surface. Such coatings are used, for example, for the sterilization of medical instruments.
- a condenser microphone in which the membrane is provided with a hydrophobic layer to prevent the membrane from adhering to the back condenser plate of the microphone.
- the distance between the membrane and the back plate is less than 10 ⁇ m.
- a hearing aid with a hearing aid housing is known in which electroacoustic miniature transducers (microphones, earphones) are arranged each with a converter housing within the housing.
- electroacoustic miniature transducers microphones, earphones
- a converter housing within the housing.
- front of the sound inlet openings of the microphones are to protect the same from surface flush in the hearing aid housing integrated cover elements, which may also be provided with a dirt-repellent coating.
- the object of the present invention is to prevent the adhesion of dirt particles within an electroacoustic miniature transducer, which are used in hearing aids.
- transducer membrane for use in a hearing aid, characterized in that the transducer membrane is provided with an oliophobic and / or biofilm-inhibiting coating whose layer thickness is less than 10 ⁇ m.
- the object is achieved in an electroacoustic miniature converter in that the housing is at least partially provided with an oliophobic and / or biofilm-inhibiting coating.
- the object is achieved in an electroacoustic miniature transducer with at least one sound channel in that the sound channel is at least partially provided with an oliophobic and / or biofilm-inhibiting coating.
- an electroacoustic miniature transducer for a hearing aid includes a housing, a transducer diaphragm, the is excited to oscillate and causes a conversion between an acoustic and an electrical signal, and a sound channel for sound conduction between the housing interior and the outer space surrounding the housing. Instead of a sound channel but also only a housing opening may be present.
- Miniature transducers can be fabricated by manufacturing processes that are primarily known from silicon semiconductor technology. These miniature transducers are generally relatively insensitive to moisture since both the starting material (silicon compounds) and the coatings required for the function of such miniature transducers, eg metallizations for forming the electrodes, are insensitive to moisture.
- the coating Due to the small layer thickness of the coating, which is preferably in the nanometer range, a sufficient elasticity of the coating is ensured. This and the small additional mass which is applied by the extremely thin coating on the transducer membrane, cause the acoustic properties of the miniature transducer according to the invention compared to a miniature transducer with uncoated transducer diaphragm deteriorate only slightly. However, due to the moisture and dirt repellent properties of the transducer diaphragm of an acoustic miniature transducer according to the invention, this retains its acoustic properties over many years, whereas conventional miniature transducers undergo severe aging processes.
- the coating is, in particular, an inorganic condensate modified with organic groups and based on a coating composition which is a hydrolyzate or precondensate of one or more hydrolyzable compounds having at least one non-hydrolyzable substituent, wherein preferably at least a portion of the organic groups of the condensate has fluorine atoms.
- a coating composition which is a hydrolyzate or precondensate of one or more hydrolyzable compounds having at least one non-hydrolyzable substituent, wherein preferably at least a portion of the organic groups of the condensate has fluorine atoms.
- copper or silver colloids may be included in the coating.
- Such a plastic coating has the advantage that it can be made very thin.
- Conventional layer thicknesses can be in the micrometer range after application of the coating and after drying in the nanometer range, which is why this coating is also referred to as "nano-coating".
- the coating can also be applied by conventional coating methods such as dipping, spraying or brushing. After an optional short drying such a layer is then usually cured under UV light.
- the coating composition is chosen taking into account the intended coating method so that the layer thickness in the dried state is less than 10 microns. Such a value can be adjusted in particular by the solvent content of the coating during application.
- the invention provides at least one coating of the membrane side, which is aligned with the sound passage opening in the housing of the miniature transducer.
- both sides of the transducer membrane are coated.
- the best possible protection against the ingress of moisture into the transducer membrane is given, even if the lateral surfaces of the through-channels in the transducer membrane, which serve for barometric pressure equalization, are coated. At least all exposed, that is not clamped areas of the transducer membrane are thus coated and the sensitive transducer membrane is completely surrounded by a protective layer. So can moisture and dirt does not lead to swelling of the transducer membrane, which would strongly negatively affect the acoustic properties.
- the coating according to the invention not only prevents the ingress of moisture and oil, but also dirt particles can no longer adhere to the transducer membrane. Overall, the life of an electro-acoustic miniature transducer is thus extended even under extreme external influences, as they may occur when used in a hearing aid.
- the transducer diaphragm and the housing in addition to the transducer diaphragm and the housing, in particular the inside of the housing, and the sound channel of the miniature transducer are coated with a coating having said properties.
- the coating leads to a reduction of the surface energy, whereby dirt particles can no longer accumulate permanently. Liquid or solid foreign substances are thus rejected by the coated surfaces. In particular, so cereal parts are difficult to attach. Should cerumen nevertheless be deposited on the housing or clog the sound channel, this can easily be shaken off by the lack of adhesion to the surfaces. A corresponding shaping of the sound channel or the housing facilitates the shaking.
- hydro- and / or oliophobic surfaces prevent a capillary effect. Moisture is thus no longer absorbed by capillaries.
- the coating according to the invention has in a preferred embodiment of the invention in addition to the hydrophobic and oliophobic also a bactericidal and fungicidal action.
- the humid and warm climate in the ear canal is ideal for the growth of bacteria and fungi.
- electroacoustic miniature transducers of hearing aids worn in the auditory canal can be affected by bacterial and fungal infestation.
- In addition to damage to the transducers themselves can thereby also a Inflammation can be caused in the hearing aid wearer.
- the coating preferably contains silver ions. These are released and diffused to the surface of the layer, where they then unfold their effect. They kill off bacteria and fungi by blocking a certain enzyme that the bacteria and fungi need for their metabolism.
- FIG. 1 shows a designed as a hearing aid microphone electroacoustic miniature converter.
- the hearing device microphone comprises a housing 1 with a sound connector 2, in which a microphone diaphragm 4 is fastened to the housing 1 via a circumferential holder 3.
- the microphone membrane 4 has small holes 5 for a barometric air compensation and is clamped against a counter electrode 6.
- the sound conversion is based on the capacitive transducer principle in this type of miniature transducers.
- a thin coating 7 is applied to the microphone membrane 4 on both sides.
- the invention provides a coating composition in which a layer thickness does not exceed 10 ⁇ m in the dried-out state of the layer.
- the layer thickness is in the nanometer range, which is why the coating 7 as a nano-coating referred to as.
- the coating 7 is hydrophobic, oliophobic, bactericidal and fungicidal. As a result, neither moisture nor oil can penetrate into the microphone diaphragm 4, whereby oxidation and swelling of the microphone diaphragm 4 are prevented. Furthermore, dirt particles do not adhere to the microphone membrane 4. Even bacteria or fungi can not settle on her. Overall, therefore, the microphone diaphragm 4 retains its original acoustic properties even under the extreme external conditions that prevail in a hearing aid.
- the inside of the housing as well as the inside of the sound channel 2 are provided with the coating 7.
- the coating 7 shows the advantages that dirt particles do not adhere and thus, if they should penetrate into the sound channel or the converter housing, can be easily shaken out again.
- moisture entering the hearing aid microphone will not damage the microphone. Overall, this significantly prolongs the life of a hearing aid microphone.
- the coating 7 also acts bacterial and fungi-inhibiting, so that the settlement harmful Bacteria or fungi within the hearing aid microphone is prevented. This can also prevent damage to the hearing aid microphone.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260307A DE10260307B4 (de) | 2002-12-20 | 2002-12-20 | Elektroakustischer Miniaturwandler für ein Hörhilfegerät |
DE10260307 | 2002-12-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1432281A2 EP1432281A2 (de) | 2004-06-23 |
EP1432281A3 EP1432281A3 (de) | 2008-12-03 |
EP1432281B1 true EP1432281B1 (de) | 2010-06-02 |
Family
ID=32336550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03027391A Expired - Lifetime EP1432281B1 (de) | 2002-12-20 | 2003-11-27 | Elektroakustischer Miniaturwandler für ein Hörhilfegerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US7702124B2 (da) |
EP (1) | EP1432281B1 (da) |
AT (1) | ATE470319T1 (da) |
DE (2) | DE10260307B4 (da) |
DK (1) | DK1432281T3 (da) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10219679A1 (de) * | 2002-05-02 | 2003-11-20 | Audio Service Gmbh As | Hörgerät oder Hörgeräteteile zum Einsatz in den Gehörgang und/oder die Ohrmuschel eines Trägers |
US7324652B2 (en) * | 2003-12-30 | 2008-01-29 | Starkey Laboratories, Inc. | Hearing aid having a supply source providing multiple supply voltages |
US7267847B2 (en) * | 2003-12-30 | 2007-09-11 | Phonak Ag | Hydrophobic coating of individual components of hearing aid devices |
DE102004062279A1 (de) * | 2004-12-23 | 2006-05-11 | Siemens Audiologische Technik Gmbh | Zerumenschutzeinrichtung für ein Hörhilfegerät |
US20070003081A1 (en) * | 2005-06-30 | 2007-01-04 | Insound Medical, Inc. | Moisture resistant microphone |
US20070251083A1 (en) * | 2006-04-28 | 2007-11-01 | Starkey Laboratories, Inc. | Moisture Resistant Barrier for Batteries |
CA2664536A1 (en) * | 2006-10-03 | 2008-04-10 | Sonic Innovations, Inc. | Hydrophobic and oleophobic coating and method for preparing the same |
US8846161B2 (en) * | 2006-10-03 | 2014-09-30 | Brigham Young University | Hydrophobic coating and method |
EP1915032B1 (de) | 2006-10-18 | 2012-01-04 | Siemens Audiologische Technik GmbH | Hörhilfegerät |
DE102007010602A1 (de) * | 2007-03-05 | 2008-09-11 | Siemens Audiologische Technik Gmbh | Spannungsquelle mit einem beschichteten Gehäuse |
EP1995992A3 (en) * | 2007-05-24 | 2009-12-02 | Starkey Laboratories, Inc. | Hearing assistance device with capacitive switch |
EP2003931A3 (en) * | 2007-06-12 | 2011-01-05 | Starkey Laboratories, Inc. | Method and apparatus for hearing assistance device using superhydrophobic coatings |
US8542850B2 (en) | 2007-09-12 | 2013-09-24 | Epcos Pte Ltd | Miniature microphone assembly with hydrophobic surface coating |
SG155795A1 (en) * | 2008-03-19 | 2009-10-29 | Sensfab Pte Ltd | Water resistant ultra-low pressure sensor and method of fabrication of same |
US8294141B2 (en) * | 2008-07-07 | 2012-10-23 | Georgia Tech Research Corporation | Super sensitive UV detector using polymer functionalized nanobelts |
US8758217B2 (en) * | 2008-09-02 | 2014-06-24 | Georgia Tech Research Corporation | Piezoelectric nanowire vibration sensors |
US20110091058A1 (en) * | 2009-10-16 | 2011-04-21 | Starkey Laboratories, Inc. | Method and apparatus for in-the-ear hearing aid with capacitive sensor |
DK2348758T3 (da) | 2009-10-17 | 2019-09-23 | Starkey Labs Inc | Fremgangsmåde og anordning til bag-øret-høreapparat med kapacitiv sensor |
US9369816B2 (en) | 2009-12-31 | 2016-06-14 | Starkey Laboratories, Inc. | Omniphobic perforated barrier for hearing aid transducers |
DK2348757T3 (da) | 2009-12-31 | 2016-02-01 | Starkey Lab Inc | Formindskelse af fremmedstoffer til komponenter til hørehjælpsanordninger |
US8824162B2 (en) | 2010-08-30 | 2014-09-02 | Apple Inc. | Electronic devices with moisture guiding structures |
US9132270B2 (en) * | 2011-01-18 | 2015-09-15 | Advanced Bionics Ag | Moisture resistant headpieces and implantable cochlear stimulation systems including the same |
DE102011005630A1 (de) | 2011-03-16 | 2012-09-20 | Siemens Medical Instruments Pte. Ltd. | Hydrophobes ABS Kunststoffmaterial für Gehäuse |
US9071918B2 (en) | 2011-03-18 | 2015-06-30 | Starkey Laboratories, Inc. | Ball and socket connection with an acoustic seal and mounting interface for a hearing assistance device |
US8867767B2 (en) | 2011-11-16 | 2014-10-21 | Gustavo Andres BRAVO CORDERO | Hearing aid mold |
US9514735B2 (en) * | 2012-12-11 | 2016-12-06 | Amogreentech Co., Ltd. | Waterproof sound transmitting sheet, and method for producing same |
US9510075B2 (en) * | 2012-12-11 | 2016-11-29 | Amogreentech Co., Ltd. | Waterproof sound transmitting sheet, and method for producing same |
JP6030155B2 (ja) | 2012-12-11 | 2016-11-24 | アモグリーンテック カンパニー リミテッド | 防水通音シートおよびその製造方法 |
US10284974B2 (en) | 2013-07-10 | 2019-05-07 | Starkey Laboratories, Inc. | Acoustically transparent barrier layer to seal audio transducers |
KR101786434B1 (ko) | 2014-07-31 | 2017-10-17 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 귀 장착형 청력 장치 내의 내수성 음향 포트 |
US10469941B2 (en) * | 2016-08-23 | 2019-11-05 | Apple Inc. | Vented acoustic transducers and related methods and systems |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081626A (en) * | 1976-11-12 | 1978-03-28 | Polaroid Corporation | Electrostatic transducer having narrowed directional characteristic |
US4105830A (en) * | 1977-08-01 | 1978-08-08 | Union Carbide Corporation | Air depolarized cell |
DE8713369U1 (da) * | 1987-10-05 | 1989-02-09 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
DE19544763B4 (de) * | 1995-11-30 | 2007-03-15 | Institut für neue Materialien gemeinnützige GmbH Universität des Saarlandes | Verwendung einer fluorhaltige anorganische Polykondensate enthaltenden Beschichtungszusammensetzung zum Schutz vor Graffiti |
EP0847227B1 (de) * | 1998-03-02 | 2003-08-27 | Phonak Ag | Hörgerät |
US6134333A (en) * | 1998-03-17 | 2000-10-17 | Sonic Innovations, Inc. | Disposable oleophobic and hydrophobic barrier for a hearing aid |
US6135235A (en) * | 1999-04-06 | 2000-10-24 | Sonic Innovations, Inc. | Self-cleaning cerumen guard for a hearing device |
US6512834B1 (en) * | 1999-07-07 | 2003-01-28 | Gore Enterprise Holdings, Inc. | Acoustic protective cover assembly |
DE10013673C2 (de) * | 2000-03-20 | 2002-02-07 | Siemens Audiologische Technik | Mikromechanischer elektroakustischer Wandler |
US6859542B2 (en) * | 2001-05-31 | 2005-02-22 | Sonion Lyngby A/S | Method of providing a hydrophobic layer and a condenser microphone having such a layer |
US6932187B2 (en) * | 2003-10-14 | 2005-08-23 | Gore Enterprise Holdings, Inc. | Protective acoustic cover assembly |
-
2002
- 2002-12-20 DE DE10260307A patent/DE10260307B4/de not_active Expired - Lifetime
-
2003
- 2003-11-27 DE DE50312761T patent/DE50312761D1/de not_active Expired - Lifetime
- 2003-11-27 EP EP03027391A patent/EP1432281B1/de not_active Expired - Lifetime
- 2003-11-27 DK DK03027391.6T patent/DK1432281T3/da active
- 2003-11-27 AT AT03027391T patent/ATE470319T1/de not_active IP Right Cessation
- 2003-12-19 US US10/741,012 patent/US7702124B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1432281A2 (de) | 2004-06-23 |
US7702124B2 (en) | 2010-04-20 |
DK1432281T3 (da) | 2010-10-04 |
EP1432281A3 (de) | 2008-12-03 |
DE10260307A1 (de) | 2004-07-22 |
ATE470319T1 (de) | 2010-06-15 |
US20040179709A1 (en) | 2004-09-16 |
DE50312761D1 (de) | 2010-07-15 |
DE10260307B4 (de) | 2007-02-22 |
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