EP1368989A2 - Procede pour etablir une connexion mecanique et/ou electrique amovible - Google Patents

Procede pour etablir une connexion mecanique et/ou electrique amovible

Info

Publication number
EP1368989A2
EP1368989A2 EP01909397A EP01909397A EP1368989A2 EP 1368989 A2 EP1368989 A2 EP 1368989A2 EP 01909397 A EP01909397 A EP 01909397A EP 01909397 A EP01909397 A EP 01909397A EP 1368989 A2 EP1368989 A2 EP 1368989A2
Authority
EP
European Patent Office
Prior art keywords
hearing aid
aid apparatus
establishing
mechanical
link
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Withdrawn
Application number
EP01909397A
Other languages
German (de)
English (en)
Inventor
Andreas Jakob
Herbert Baechler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonova Holding AG
Original Assignee
Phonak AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Phonak AG filed Critical Phonak AG
Publication of EP1368989A2 publication Critical patent/EP1368989A2/fr
Withdrawn legal-status Critical Current

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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/552—Binaural
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/021—Behind the ear [BTE] hearing aids
    • 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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/558—Remote control, e.g. of amplification, frequency
    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Definitions

  • the present invention is generically directed to mechanical links between modules of a hearing aid apparatus, so as to construe the hearing aid apparatus or between a hearing aid apparatus and an additional appliance.
  • this target is reached according to the present invention by the method for establishing a detachable mechanical link at a hearing aid apparatus by establishing an exclusively mechanical link magnetically.
  • the magnetical link is established between at least two modules of the hearing aid apparatus, which concomitantly define the hearing aid apparatus or to a hearing aid apparatus and an additional appliance.
  • the mechanical link which is established magnetically does not form part of an electrical link in the sense of not affecting the quality of the electrical link, in a preferred embodiment of the present inventive method by establishing the mechanical link there is established an electrical connection, but separate from the mechanical link.
  • the attracting force of the magnetical link is exploited to establish a predetermined relative positioning of the parts by establishing the mechanical link.
  • the mechanical link is enabled or disabled by appropriately selecting polarity direction of at least two magnets for the mechanical linking.
  • the inventive mechanical link is to be realized by two magnets, one magnet on each part to be linked, then mutual polarity directions of these magnets will automatically control, whether the two parts may be mechanically linked or not.
  • the magnets will be mutually attracted, thereby enabling the mechanical link, in the other they will be magnetically separated, thereby disabling such mechanical link.
  • the mechanical link is established on the one hand to a part of the hearing aid apparatus, which comprises the signal processing modules and on the other hand at least one of the following parts:
  • an inductive link between two parts to be electrically connected from or at a hearing aid apparatus prevents optimum exploitation of establishing the mechanical link magnetically, which on the other hand has high advantages with respect to easy establishment by the user.
  • an inductive link necessitates at least on one of the two parts a coil/magnet arrangement, which obstructs quite a part of volume, which is for any hearing aid appliance always of high disadvantage.
  • connection is established to a one-lead electric cable and the electronic circuitry within the hearing aid is operationally connected on the one hand capacitively to said one-lead electric cable, and on the other hand to a body contact electrode, the electric potential of this body contact electrode being exploited as said electronic circuitry as a reference potential.
  • the electronic circuitry of the hearing aid apparatus is driven on the potential of the user's body, which body performs closure of an electrical current loop from said one-lead electric cable to the electronic circuitry back to the source of signals transmitted to the electronic circuitry.
  • the hearing aid apparatus is an in-the-ear hearing aid apparatus or an outside-the- ear hearing aid apparatus, both for impaired hearing individuals or for not hearing impaired individuals just as a hearing aid, or is an earphone apparatus.
  • the cable is in a preferred further embodiment a connecting cable to a transmitter module remote from the hearing aid apparatus or a linking cable to a programming unit for programming the hearing aid apparatus.
  • a transmitter module may be realized by a Bluetooth converter or by an external player as a minidisk player, and MP3 player, a CD player etc.
  • the said cable forms at least a part of a binaural link from one hearing aid apparatus to a second one.
  • a hearing aid apparatus comprising at least two releasable modules as the at least two linkable parts with mechanical linking members or with an additional appliance as one linking part removably linkable to the hearing aid apparatus as a second linking part by mechanical linking members, wherein the mechanical linking members comprise at least one magnet.
  • a magnet arrangement in the area of the mechanical link to be established at at least one of the linking parts, a magnet arrangement, preferably a permanent magnet arrangement, and there is further provided, at the other of said linking parts, as was mentioned, a magnet arrangement as well or a counterpart of ferromagnetic material.
  • the mechanical linking members are the mechanical linking members for an electrical connection.
  • the mechanical linking members comprise guiding members, which ensure establishment of the mechanical link in a predetermined mutual position of the linkable parts.
  • one part to be linked comprises a signal processing module, and the other part is one of the following parts:
  • the mechanical linking members are the mechanical linking members of an electrical galvanic connection between the parts.
  • an inventive hearing aid apparatus still to resolve the problems discussed in connection with the inventive method, with a detachable electric connection, wherein the electrical connection comprises a series capacitance, a part of a casing of the hearing aid apparatus forming the dielectricum of the capacitance.
  • the one part to be electrically connected is the hearing aid apparatus, another part is a preferably one-lead connecting cable.
  • the hearing aid apparatus comprises a body-contacting electrode which is exposed to ambient. This electrode, in use of the hearing aid apparatus, contacts the human body, and electrical potential of this electrode is exploited as the reference potential for the electronics of the hearing aid apparatus, i.e. as ground potential.
  • Fig. 1 schematically, the principal of the inventive mechanical linking method as is provided at a hearing aid apparatus according to the present invention
  • Fig. 2 in a representation form in analogy to that of fig. 1, a further embodiment of the inventive magneto/mechanical linking technique at a further embodiment of a hearing aid according to the present invention
  • FIG. 3 still in a schematic representation according to the figs. 1 and 2, a further improvement of the inventive mechanical linking technique for accurately positioning the parts to be linked as realized at one embodiment of a hearing aid apparatus according to the present invention
  • Fig. 4 still in a representation in the schematic form according to the figs. 1 to 3, realization of the inventive mechanical linking method together with galvanic electrical linking as realized in a hearing aid apparatus according to the invention
  • Figs . 5A and 5B schematically the principal of the method of capacitively electrically linking as realized at a further embodiment of a hearing aid apparatus according to the present invention
  • Fig. 6 still schematically the combination of series capacitance electrical linking and of magneto/mechanical linking as realized in a hearing aid apparatus according to the present invention
  • Fig. 7 a further embodiment of combined magneto/mechanical and series capacitance linking according to the method and hearing aid apparatus of the present invention
  • Fig. 8 schematically an inventive hearing aid apparatus, whereat two modules are linked magneto/mechanically and/or by series capacitance electric linking according to the present invention
  • Fig. 9 a preferred embodiment of the present invention according to which an external appliance as of a preferably one-lead cable is temporarily applied to a hearing aid apparatus to connect latter to a Bluetooth device and/or a player device and/or a control device and/or a hearing aid DSP programming unit.
  • a first part 1 to be mechanically linked be it a hearing aid apparatus or one module of a hearing aid apparatus, there is provided a pole piece 3 of ferromagnetic material.
  • a magnet arrangement 7, preferably a permanent magnet arrangement is provided at the second part 5 to be mechanically linked to the part 1, be it an appliance to be removably linked to the hearing aid apparatus or be it a module to concomitantly form a hearing aid apparatus together with part 1, a magnet arrangement 7, preferably a permanent magnet arrangement, is provided.
  • pole piece 3 instead of providing a pole piece 3 in fact magnetically passive at one of the two parts, it is absolutely possible to provide at both parts 1 and 5 an active magnet arrangement, again preferably of permanent magnets .
  • both parts to be mechanically linked 1 and 5 comprise both magnet arrangements 7 5 and 7 X respectively.
  • This technique allows to prevent establishment of mechanical links between parts or in positions of parts which shall not be mechanically linked.
  • the two parts 1 and 5 will be attracted by the mutual magnetic force F, thereby leading to the magnetical link as desired.
  • the polarities of the two magnet arrangements are inversed as shown in dashed lines, then approaching the two parts 1 and 5 to be mechanically linked will be prevented by the repelling force of the magnets.
  • the attracting magnetic force is generically exploited to draw the two parts to be linked in an exact mutual position.
  • the inventively provided magneto/mechanical link shall not interfere especially as concerns selection of the material used for establishing the magnetic link on the one hand and the electric link on the other, but as again schematically shown in fig. 4, the magneto/electrical link according to the present invention may clearly be used for mechanically holding parts together which are electrically linked.
  • one or more than one electric connection pin 11 may be provided as electric contact connected within part 5 to respective electric leads 13.
  • the magnet arrangement 7 X again preferably of permanent magnets, and the female counterparts 15 for the pins 11 to establish respective electrical galvanic connections.
  • the female plugs 15 are connected to electrical leads 17.
  • the magnet arrangements are e.g. formed by respective permanent magnets distributed in an annular pattern around a central axis A by appropriately selecting the polarities of the magnets, it may be predetermined at which mutual angle position ⁇ the two parts 1 and 5 may be magneto/mechanically linked, thereby defining for the proper positioning of the electric contact parts 11 and 15 to be connected as desired.
  • a hearing aid apparatus or a module thereof 21 comprises a shell or casing 23, wherein electronic units, as e.g. a digital signal processing unit 27 is mounted.
  • a second part 25, as e.g. a second module forming together with module according to part 21 the hearing aid apparatus or being an appliance to be applied to the hearing aid apparatus part 21 comprises a first capacitance electrode 30 a , which is metallic and which, not necessarily but preferably, has a metallic surface 32 exposed to ambient.
  • a metallic electrode 30 b being separate from the ambient U by a part 23 d of casing 23 being of a dielectric material, as of plastic material of the casing 23.
  • the electrode 30 b is electrically connected to the unit 27.
  • This capacitance C acts as series signal-transmitting element between the two parts 25 and 21.
  • the dielectric covering may also be applied to the surface 32 of electrode 30a or exclusively to that surface.
  • the electronic unit 27 within the hearing aid module 21 gets its reference potential from a body-contacting electrode 35. When applied to the human body, the electrode 35 assumes the local electric potential ⁇ B of the body via electrolytic contact, which may be improved by electrolytic paste as known in medical electrode appliance art.
  • the capacitive link is most preferably exploited for transmitting digital signals S#. Without having to recur to relatively complicated chart amplifier circuitry and dependent on the input impedance Z of the unit 27 the capacitance C acts as a voltage-differentiating element, so that digital signals S# will be differentiated to impulses I which may easily be detected at the unit 27. In a preferred mode this capacitive connection is used to transmit controlled signals and especially digitally controlled signal traits.
  • fig. 5B there is again schematically shown the principle of establishing an electric connection according to the present invention.
  • the electrode 35 being the body-contacting electrode according to fig. 5A, is embedded into the casing 23 which means that the body is also contacted by a capacitive electric coupling as it is the case between the first electrode 30 a of the part 25 and the second electrode 30 b of the casing 23.
  • fig. 5B shows an interface module IF in which desired signals can be generated by a signal generator SG.
  • the signal generator SG is connected, on the one hand, to the first electrode 30 a of the part 25 and, on the other hand, to a ground electrode IF_GND which is preferably incorporated into the interface module IF.
  • a further capacitive electric coupling to the body to close the electric circuit.
  • ground electrode IF_GND instead of completely incorporating the ground electrode IF_GND into the casing of the interface module IF resulting in said further capacitive electric coupling one might also provide a ground electrode which is in direct contact with the body similiarly to the arrangement of fig. 5A where the electrode 35 is directly contacting the body. As shown in fig. 6 such series capacitance coupling by means of series capacitance element C may easily and most advantageously be combined with the magneto/mechanical linking technique as was described with the help of figures of 1 to 4.
  • the electrode arrangement 30 a at part 25 comprises the magnets of the magnet arrangement 7 5 .
  • the counter electrode 30 b is formed of ferromagnetic material.
  • An additional pole piece 38 may be applied at part 25 to complete the magnetic circuit. Nevertheless, the magnetic field and the ferromagnetic material of the electrode 30 b will by no means interfere with the capacitive coupling, because with respect to the material of the electrode 30 b there is not requested a high electro conductivity. Thus, the principle of series capacitance signal transmission and of magneto/mechanical linking may be ideally combined, thereby exploiting the electrode for the capacitance coupling simultaneously as part of the magnetic link arrangement. This is much more critical with an inductive coupling, as its magnetic field may clearly interfere with inductive transmission.
  • the magneto/mechanical link and/or the series capacitance electric link may be applied between modules 40 and 42 concomitantly forming a hearing aid apparatus 50, one module, e.g. module 40, comprising electronic circuitry 44 to be e.g. electrically supplied by means of a battery or accumulator 46 within module 42.
  • Module 42 may thereby be a battery or accumulator module, an emitter and/or receiver module, a filter module, a microphone module.
  • the electric and/or mechanical link as is applied between the two modules 40 and 42 and as was explained by figs. 1 to 7 is denoted in fig. 8 schematically at 46.
  • the magneto/mechanical link and thereby preferably combined with the series capacitance electrical link is applied between a hearing aid apparatus 52 and an external appliance, especially a cable connector 54, thereby especially preferred with a one-lead 56 cable.
  • a hearing aid apparatus 52 and an external appliance, especially a cable connector 54, thereby especially preferred with a one-lead 56 cable.
  • reference potential may also be provided to unit 27 by galvanic contact to a reference potential lead, as shown in fig. 5A in dashed lines and at reference number 31.
  • the preferably one-lead connection 56 may establish connection of the hearing apparatus 52 to a Bluetooth device 58 and/or to a player unit 60, e.g. a minidisk, CD or MP3 player, or to a remote control unit 62 or, and especially, to a programming unit 64 for programming the digital signal processing in the hearing aid, e.g. at the audiologist.
  • a player unit 60 e.g. a minidisk, CD or MP3 player
  • a remote control unit 62 e.g. a minidisk, CD or MP3 player
  • a programming unit 64 for programming the digital signal processing in the hearing aid, e.g. at the audiologist.
  • the battery or accumulator module incorporated into the hearing aid apparatus can be used as electrode, be it the second electrode, be it the body- contacting electrode, to perform capacitive electric coupling. Furthermore, provided that the casing of the battery or accumulator module is made of a ferromagnetic material, this module may also be used to establish the mechanical link.

Abstract

L'invention porte sur la réalisation d'une connexion entre une prothèse auditive (21) ou une partie de cette prothèse avec un module (25) devant être appliqué à cette prothèse auditive ou à une seconde partie de celle-ci, cette connexion s'effectuant d'une part mécaniquement au moyen d'un aimant (75), et d'autre part électriquement au moyen d'une connexion capacitive série. Les deux parties à relier forment mutuellement un élément capacitif au moyen de plaques (30a, 30b) de condensateur pourvues d'une couche (23) de diélectrique intermédiaire.
EP01909397A 2001-03-13 2001-03-13 Procede pour etablir une connexion mecanique et/ou electrique amovible Withdrawn EP1368989A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2001/000156 WO2001039569A2 (fr) 2001-03-13 2001-03-13 Procede pour etablir une connexion mecanique et/ou electrique amovible

Publications (1)

Publication Number Publication Date
EP1368989A2 true EP1368989A2 (fr) 2003-12-10

Family

ID=4358184

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01909397A Withdrawn EP1368989A2 (fr) 2001-03-13 2001-03-13 Procede pour etablir une connexion mecanique et/ou electrique amovible
EP02750507A Expired - Lifetime EP1368991B1 (fr) 2001-03-13 2002-01-22 Procede permettant d'etablir une liaison de communication binaurale et dispositifs auditifs binauraux

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02750507A Expired - Lifetime EP1368991B1 (fr) 2001-03-13 2002-01-22 Procede permettant d'etablir une liaison de communication binaurale et dispositifs auditifs binauraux

Country Status (7)

Country Link
EP (2) EP1368989A2 (fr)
JP (2) JP2004530310A (fr)
AU (3) AU2001237188B2 (fr)
CA (2) CA2439445A1 (fr)
DE (1) DE60239319D1 (fr)
DK (1) DK1368991T3 (fr)
WO (2) WO2001039569A2 (fr)

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US8460746B2 (en) 2009-09-09 2013-06-11 Cochlear Limited Method of forming insulated conductive element having a substantially continuous barrier layer formed via relative motion during deposition

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Also Published As

Publication number Publication date
JP2004526366A (ja) 2004-08-26
AU3718801A (en) 2001-06-12
JP2004530310A (ja) 2004-09-30
AU2001237188B2 (en) 2006-03-09
AU2002218936C1 (en) 2010-05-13
EP1368991B1 (fr) 2011-03-02
WO2002074011A3 (fr) 2003-07-24
CA2407142C (fr) 2011-07-26
WO2001039569A3 (fr) 2002-05-30
CA2407142A1 (fr) 2002-09-19
AU2002218936A1 (en) 2002-09-24
AU2002218936B2 (en) 2007-02-22
WO2002074011A2 (fr) 2002-09-19
DK1368991T3 (da) 2011-06-20
WO2001039569A2 (fr) 2001-06-07
CA2439445A1 (fr) 2001-06-07
EP1368991A2 (fr) 2003-12-10
DE60239319D1 (de) 2011-04-14
AU2002218936B8 (en) 2007-04-05

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