EP1519486A2 - Prothèse auditive avec un commutateur commandé par un champ magnétique et procédé correspondant pour opérer une prothèse auditive - Google Patents

Prothèse auditive avec un commutateur commandé par un champ magnétique et procédé correspondant pour opérer une prothèse auditive Download PDF

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Publication number
EP1519486A2
EP1519486A2 EP04021820A EP04021820A EP1519486A2 EP 1519486 A2 EP1519486 A2 EP 1519486A2 EP 04021820 A EP04021820 A EP 04021820A EP 04021820 A EP04021820 A EP 04021820A EP 1519486 A2 EP1519486 A2 EP 1519486A2
Authority
EP
European Patent Office
Prior art keywords
hearing aid
magnetic field
ferrite
switching device
function
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Withdrawn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
EP04021820A
Other languages
German (de)
English (en)
Other versions
EP1519486A3 (fr
Inventor
Kunibert Husung
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.)
Sivantos GmbH
Original Assignee
Siemens Audioligische Technik GmbH
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 Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Publication of EP1519486A2 publication Critical patent/EP1519486A2/fr
Publication of EP1519486A3 publication Critical patent/EP1519486A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • H04R25/554—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 using a wireless connection, e.g. between microphone and amplifier or using Tcoils
    • 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
    • H04R25/43—Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics
    • 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
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • 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
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements

Definitions

  • the present invention relates to a hearing aid with a first hearing aid function, a second hearing aid function and a switching device for automatically switching the first hearing aid function in the second hearing aid function. Moreover, the present invention relates to a corresponding Method for operating a hearing aid.
  • Another application for magnetic-field-controlled, automatic Turning on a hearing aid is its automatic Shut down when the device is in the storage box or Charging station is placed.
  • Magnet in the storage box or charging station and switches through its magnetic DC field the reed contact in the hearing aid, so that this without pressing a control component is turned off.
  • a disadvantage of the reed contacts are their volume and their movable contact elements, the on the one hand require a high production cost and the others have a correspondingly low life.
  • the object of the present invention is therefore to To provide a hearing aid, with reduced manufacturing costs and increased compactness and durability is automatically switchable.
  • this object is achieved by a hearing aid with a first hearing aid function, a second hearing aid function and a switching device for automatic Switching from the first hearing aid function to the second hearing aid function, wherein the switching device at least one magnetic field-controlled ferrite component, whose impedance change as a basis for automatic switching is usable.
  • the invention is based on the idea that for the automatic Turn a hearing aid the change of permeability a ferrite component depending on an applied Magnetic field can be exploited.
  • the continuous Permeability change as a function of the strength of the applied magnetic field causes an impedance or inductance change a suitable ferrite component and can be used to trigger a switching operation.
  • the first hearing aid function comprises a microphone operation and the second hearing aid function a telecoil operation.
  • This can automatically when calling from the microphone mode be switched into the telecoil mode, if a telephone handset with permanent magnet applied to the ear becomes.
  • the first hearing aid function can also be switched on and the second hearing aid function the off state correspond to the hearing aid.
  • the hearing aid as mentioned above, for example by Insert into the storage box or charging station on and turned off.
  • the magnetic field controlled ferrite component can by a SMD ferrite can be realized. Thus, this is usually in the High frequency range used device in the present Case used as a magnetic field sensor.
  • the magnetic field controlled ferrite component can also be realized by a coil with ferrite core.
  • the switching device preferably has an LC oscillator circuit, whose inductance is formed by the coil is to detect an inductance change of Coil with ferrite core.
  • the switching device has via a bridge circuit for detecting the impedance change.
  • the bridge circuit can be both frequency-dependent as well as frequency independent.
  • a frequency-dependent bridge circuit for example two SMD ferrites can be used as bridge elements to to increase the sensitivity.
  • the switching device is provided with a peak detector equipped with the maximum values of a AC signal, the impedance or inductance change is detectable. This can easily the Near a permanent magnet to the magnetic field controlled Component be determined in the hearing aid.
  • the hearing aid shown in FIG 1 as a block diagram has two input components, namely a microphone 1 and a telecoil 2.
  • the signals of both components are in a preamplifier 3 with A / D converter preamplified and digitized.
  • the digital signal is in a signal processing 4 processed for a handset or speaker 5.
  • a Battery 6 provides the necessary supply voltage for the Preamplifier 3 and the digital signal processing unit 4th
  • the digital signal processing unit 4 is by means of a MTO switch in the microphone mode, the telecoil operation and the off state switchable.
  • a programming jack 8 allows suitable programming of the digital signal processing unit 4.
  • the digital signal processing circuit 4 may be correspondingly the environmental situation, for example, from the telecoil operation switched to a mixed operation with microphone become.
  • the situation key 9 allows, for example the connection and disconnection of individual ones of several Microphones.
  • a volume control 10 can finally in the usual way the volume of the hearing aid be set.
  • a measuring bridge with evaluation circuit 11, to which an SMD ferrite sensor 12 is connected, is used to control the digital Signal processing device 4.
  • the measuring bridge 11 and the digital signal processing device 4 are from a System clock unit 13, which essentially by an oscillator is formed, with a system clock or with a AC voltage supplied.
  • a small SMD ferrite which is usually used in the high-frequency range, be used as a sensor for a static magnetic field.
  • FIG 2 The construction of the measuring bridge with evaluation circuit 11 is shown in FIG 2 shown in more detail.
  • a Wheatstone bridge circuit is in a branch with the SMD ferrite 12 occupied. This one has under other inductive behavior with the letter "L" is marked.
  • the remaining branches of the Wheatstone bridge circuit are in the usual way with ohmic elements R1 and R2 and occupied by a capacitive element C.
  • the Wheatstone bridge circuit is powered by the system clock unit or the oscillator 13, which has a corresponding AC voltage is applied to the bridge. Because the circuit a represents frequency-independent AC bridge and thus independent of the oscillator frequency and harmonic content works, can be arbitrary and also frequency unstable Clock signals are used for bridge supply.
  • the SMD ferrite is a static magnetic field flooded, changes through the existing magnetization the inductance of the component. As a result, the AC bridge becomes detuned and there is a correspondingly higher Voltage drop in the difference branch.
  • the tapped in the differential branch of the measuring amplifier 14 AC voltage can with a in the measuring amplifier 14 integrated peak detector are evaluated. After subsequent Rectification and threshold analysis in the amplifier 14, one obtains a control signal for controlling the desired one Functions in the hearing aid or in the implant.
  • a formed with a ferrite jacket surrounded electrical conductor can also be wound with a coil wire ferrite core be used as a magnetic field sensor. These too Ferrite coil can be evaluated by the AC bridge become.
  • the AC bridge uses a LC oscillator circuit.
  • the ferrite component acts as a frequency-determining element Component, i. it becomes the one associated with the impedance change Inductance change depending on the static Magnetic field used. In this case causes a magnetic Gleichfeld the detuning of the oscillator circuit.
  • the frequency change is a measure of the strength of the existing magnetic field.
  • a frequency-dependent bridge circuit can be used. This would have the advantage that two SMD ferrites or ferrite coils, which react to the magnetic field, are used can significantly increase the sensitivity. However, this requires a stable oscillator frequency.
  • the magnetic field controlled Impedance represents.
  • the Hall sensor has the Disadvantage of a relatively high electrical power consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measuring Magnetic Variables (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Electronic Switches (AREA)
  • Telephone Function (AREA)
EP04021820A 2003-09-24 2004-09-14 Prothèse auditive avec un commutateur commandé par un champ magnétique et procédé correspondant pour opérer une prothèse auditive Withdrawn EP1519486A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344367 2003-09-24
DE10344367A DE10344367B4 (de) 2003-09-24 2003-09-24 Hörhilfegerät mit magnetfeldgesteuertem Schalter und entsprechendes Verfahren zum Betreiben eines Hörhilfegeräts

Publications (2)

Publication Number Publication Date
EP1519486A2 true EP1519486A2 (fr) 2005-03-30
EP1519486A3 EP1519486A3 (fr) 2010-01-13

Family

ID=34177931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021820A Withdrawn EP1519486A3 (fr) 2003-09-24 2004-09-14 Prothèse auditive avec un commutateur commandé par un champ magnétique et procédé correspondant pour opérer une prothèse auditive

Country Status (4)

Country Link
US (1) US7496206B2 (fr)
EP (1) EP1519486A3 (fr)
AU (1) AU2004214555B2 (fr)
DE (1) DE10344367B4 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7016511B1 (en) * 1998-10-28 2006-03-21 Insound Medical, Inc. Remote magnetic activation of hearing devices
US20060210104A1 (en) * 1998-10-28 2006-09-21 Insound Medical, Inc. Remote magnetic activation of hearing devices
AU2006303651B2 (en) * 2005-10-17 2010-04-01 Widex A/S Hearing aid having selectable programmes, and method for changing the programme in a hearing aid
DE102006024713B3 (de) * 2006-05-26 2007-08-30 Siemens Audiologische Technik Gmbh Hörvorrichtung mit einer Schwingkreisschaltung und entsprechendes Verfahren
DE102007039447A1 (de) * 2007-08-21 2009-02-26 Siemens Medical Instruments Pte. Ltd. Verfahren zur Seitendefinition bei der Anpassung von Hörhilfen
DE102007039455A1 (de) * 2007-08-21 2009-02-26 Siemens Audiologische Technik Gmbh Hörhilfegerätesystem mit Magnetfeldsensoren
DE102007054603B4 (de) * 2007-11-15 2018-10-18 Sivantos Pte. Ltd. Hörvorrichtung mit gesteuerter Programmierbuchse
DK2495996T3 (da) * 2007-12-11 2019-07-22 Oticon As Fremgangsmåde til at måle kritisk forstærkning på et høreapparat
DE102012215976A1 (de) * 2012-09-10 2014-03-13 Siemens Medical Instruments Pte. Ltd. Hörinstrument mit temperatursensitivem Bedienelement
SE537218C2 (sv) 2013-08-07 2015-03-03 Osseofon Ab Elektrisk kopplingsanordning för implanterbar hörapparat
KR102506694B1 (ko) * 2019-08-21 2023-03-07 주식회사 토닥 외장 마이크를 위한 인공 와우 외부기

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109049C2 (fr) 1981-03-10 1989-06-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE3734946C2 (fr) 1987-10-15 1992-11-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE19633321A1 (de) 1996-05-02 1997-11-06 E A Olaf Greiner Hörgerät und Betätigungselement für ein Hörgerät
DE29923019U1 (de) 1999-12-30 2000-04-20 auric Hörsysteme GmbH & Co. KG, 48429 Rheine Anordnung zum Schalten eines Hörgerätes
EP1398995A2 (fr) 2002-09-16 2004-03-17 Starkey Labs, Inc. Structure d'interrupteur pour prothèse auditive

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743442A (ja) * 1993-07-30 1995-02-14 Sony Corp 地磁気方位センサー

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109049C2 (fr) 1981-03-10 1989-06-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE3734946C2 (fr) 1987-10-15 1992-11-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
DE19633321A1 (de) 1996-05-02 1997-11-06 E A Olaf Greiner Hörgerät und Betätigungselement für ein Hörgerät
DE29923019U1 (de) 1999-12-30 2000-04-20 auric Hörsysteme GmbH & Co. KG, 48429 Rheine Anordnung zum Schalten eines Hörgerätes
EP1398995A2 (fr) 2002-09-16 2004-03-17 Starkey Labs, Inc. Structure d'interrupteur pour prothèse auditive

Also Published As

Publication number Publication date
DE10344367A1 (de) 2005-05-04
AU2004214555B2 (en) 2008-10-23
DE10344367B4 (de) 2010-01-14
US7496206B2 (en) 2009-02-24
AU2004214555A1 (en) 2005-04-07
EP1519486A3 (fr) 2010-01-13
US20050105752A1 (en) 2005-05-19

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