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EP1377118B1 - Système de prothèse auditive avec prothèse auditive et unité processeur externe - Google Patents

Système de prothèse auditive avec prothèse auditive et unité processeur externe Download PDF

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Publication number
EP1377118B1
EP1377118B1 EP03009466.8A EP03009466A EP1377118B1 EP 1377118 B1 EP1377118 B1 EP 1377118B1 EP 03009466 A EP03009466 A EP 03009466A EP 1377118 B1 EP1377118 B1 EP 1377118B1
Authority
EP
European Patent Office
Prior art keywords
hearing aid
signal
hearing
external processor
unit
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
Application number
EP03009466.8A
Other languages
German (de)
English (en)
Other versions
EP1377118A2 (fr
EP1377118A3 (fr
Inventor
Uwe Rass
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 Audiologische 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 Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH
Publication of EP1377118A2 publication Critical patent/EP1377118A2/fr
Publication of EP1377118A3 publication Critical patent/EP1377118A3/fr
Application granted granted Critical
Publication of EP1377118B1 publication Critical patent/EP1377118B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • 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
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Definitions

  • the invention relates to a hearing device system with a hearing device comprising at least a first input transducer, a first signal processing unit, an output transducer and a receiving unit, and having an external processor unit comprising at least a second input transducer, a second signal processing unit and a transmitting unit.
  • the invention relates to a method for operating a hearing aid with an input transducer, a first signal processing unit, an output transducer and a receiving device.
  • a hearing aid system with a transmission module known.
  • This transmission module has a microphone with which sound signals can be recorded at a certain distance from the hearing aid.
  • the signals are sent to the hearing aid via signal conditioning via a transmitter and an antenna.
  • a hearing aid system is known in which an external processor unit has a microphone which receives sound signals from which sound field characteristics are generated. The sound field characteristics are transmitted wirelessly to one or two hearing aids.
  • a hearing aid known that detects the automatic selection of a hearing program, whether it is in the vicinity of an external transmitter.
  • the transmitter generates a transmitter-specific signal, so that an assignment of different transmitters can take place.
  • the stations are assigned different listening situations, so that the Upon receipt of a transmitter-specific signal, the hearing device recognizes the instantaneous hearing situation and adapts the signal processing in the hearing device to this.
  • a hearing aid system with a hearing aid and an external processor unit is known.
  • a sound signal picked up by a hearing aid microphone is supplied via a wireless signal path to the external processor unit and processed therein.
  • the processed signal is finally transmitted back to the hearing aid via the wireless signal path from the external processor unit and output via a receiver.
  • the external processor unit may also include a microphone.
  • a disadvantage of the known hearing aid system is the lack of adaptability to certain listening situations.
  • the object of the present invention is therefore to improve the adaptability of a hearing aid system to difficult listening environments.
  • a hearing device system with a hearing device which comprises at least a first input transducer, a first signal processing unit, an output transducer and a receiving unit, and with an external processor unit comprising at least a second input transducer, a second signal processing unit and a transmitting unit, in that the external processor unit is permanently assigned to a specific listening environment and in the processor unit a processing adapted to the listening environment of an input signal recorded by the second input transducer takes place, wherein the external processor unit sends the processed signal via the transmitting unit and the hearing device receives the transmitted signal by means of the receiving unit and outputs via the output transducer.
  • the hearing aid according to the invention is, for example, a hearing aid worn behind the ear, a hearing aid that can be worn in the ear, an implantable hearing aid or a pocket hearing aid.
  • the hearing aid according to the invention may also be part of a hearing aid system comprising a plurality of devices for supplying a hearing-impaired person, e.g. Part of a hearing aid system with two worn on the head hearing aids for binaural care, part of a hearing aid with a head-worn hearing aid and a portable external processor unit, part of a fully or partially implantable hearing aid system with multiple components, part of a hearing aid system with external additional components such as remote control unit or external microphone unit, etc.
  • a hearing aid typically includes an input transducer for receiving an input signal.
  • the input transducer is designed for example as a microphone, which receives an acoustic signal and converts it into an electrical signal.
  • units which have a coil or an antenna and which have an electromagnetic potential are also possible as input transducers Record signal and convert into an electrical signal.
  • a hearing device usually comprises a signal processing unit for processing and frequency-dependent amplification of the electrical signal.
  • DSP digital signal processor
  • the mode of operation of the signal processing unit can be adapted both to the individual hearing loss of a hearing aid wearer and to the current hearing situation in which the hearing aid is currently being operated.
  • the thus changed electrical signal is finally fed to an output transducer.
  • This is usually designed as a handset, which converts the electrical output signal into an acoustic signal.
  • an implantable output transducer which is directly connected to a ossicle and this stimulates to vibrate.
  • the external processor unit of the hearing aid system is permanently assigned to a specific hearing situation, ie arranged in a specific listening environment, such as eg fixed in the car.
  • the external processor unit comprises at least one input transducer, which is preferably designed as a microphone, a signal processing unit and a transmitting unit. Furthermore, a telecoil for receiving an electromagnetic input signal may be present as an input transducer.
  • the signal processing in the external processor unit is specially adapted to the listening environment in which the external processor unit is located. It is especially designed for difficult listening environments. Such listening environments may be, for example, the car or a workstation with a high level of noise.
  • the proximity to window panes represents a problem, which frequently causes feedback-induced oscillations in the hearing device.
  • the spatial separation of signal receiving microphone and handset when using the external Processor unit avoids this problem.
  • Still problematic in the car listening environment is the conversation with a passenger.
  • the signal source is not located as usual in the direction of the hearing aid wearer, but is aligned laterally to this.
  • By arranged in front of the passenger external processor unit with a microphone can also avoid this problem.
  • the signal processing in the external processor unit is adjusted so that the difficulties associated with the listening environment are largely eliminated.
  • filters or signal processing algorithms specially adapted to this hearing situation can be activated.
  • the signal processing in the external processor unit can take place in parallel in a plurality of frequency channels.
  • the external processor unit is advantageously programmable, ie sequence programs for controlling the signal processing in the external processor unit can be transmitted to the external processor unit or the parameters relating to the signal processing can be set.
  • external processor units of the same design can be manufactured and optimized for different listening environments.
  • the hearing device In a hearing device system with a hearing device and an external processor unit, the hearing device must be prepared for receiving a signal from the external processor unit.
  • an acoustic signal can be picked up by the input converter of the external processor unit, processed by the signal processing unit and transmitted by means of the transmitter unit to the hearing aid.
  • the hearing aid system comprises means for wireless transmission of a signal from the external processor unit to the hearing aid. If the signal path between the external processor unit and the hearing device is bidirectional, the external processor unit can advantageously also receive a signal emitted by the hearing aid. Settings on the external processor unit can be made for example via the hearing aid.
  • An embodiment of the invention provides for the hearing device to be set to receive a signal from the external processor unit by actuating a control element. For example, the signal received from the microphone of the hearing aid is then mixed with the signal transmitted by the external processor unit.
  • the weighting of the two signals is advantageously adjustable, so that in extreme cases the signal of the hearing device microphone is not further processed and only the signal picked up by the external processor unit reaches the receiver of the hearing aid.
  • the hearing aid automatically detects whether it is in the immediate vicinity of an operating external processor unit, and optionally automatically adjusts the signal processing to this hearing situation. Conversely, the hearing aid falls back into the normal operating mode when no signal from an external processor unit is received. For example, to detect proximity to a particular external processing unit, the presence, frequency, and level of a carrier signal that may be from a particular one of them external processor unit for transmitting the further processed acoustic input signal starting, be checked. By different carrier frequencies then a distinction between different external processor units, which can receive the hearing aid possible. Depending on the respective external processor unit, from which a signal is received by the hearing aid, then the further processing of the received signal in the hearing aid can be done differently. Furthermore, it can be adjusted depending on settings or functions of the hearing aid itself, for example microphones on or off, be.
  • the external processor unit for adaptation to specific listening environments comprises a directional microphone system for generating a directional microphone characteristic. This is particularly advantageous if the preferred direction of arrival of useful signals and the preferred direction of incidence of interfering signals are clearly visible, as is the case for example in the car.
  • the directivity of the external processor unit is preferably adjustable manually or automatically. In particular, a fine adaptation to the particular hearing situation can thus be achieved.
  • a variant of the invention provides that the signal transmitted from the external processor unit to the hearing device is further processed in the signal processing unit of the hearing aid.
  • the adaptation to the individual hearing loss of the hearing device wearer by the signal processing unit of the hearing aid can also take place in the case of the signal transmitted to the hearing device by the external processor unit.
  • FIG. 1 shows an external processor unit 1 of a hearing aid system according to the invention, which is attached to the dashboard 2 of a car.
  • the attachment takes place, for example, by means of a screw connection, a plug connection, an adhesive connection, a magnet holder, etc.
  • the external processor unit 1 can also be arranged concealed in the car.
  • the external processor unit 1 is permanently assigned to the hearing situation "auto”.
  • Behind the sound inlets 1A, 1B and 1C of the external processor unit conceal ball microphones, which are electrically connected to a directional microphone system.
  • the external processor unit 1 comprises an on / off switch 1D, an antenna 1E and a signal processing unit in the form of a digital signal processor (not shown).
  • the acoustic signals recorded by the microphones are processed further, wherein the signal processing in the exemplary embodiment is specially adapted to the hearing situation "car".
  • the signal processing in the exemplary embodiment is specially adapted to the hearing situation "car".
  • this is connected via a cable 1F to the power supply of the car.
  • the external processor unit 1 is preferably arranged on the passenger side of the car in the region of a car radio 3.
  • the listening situation "car” is only one of many examples in which it makes sense to use an external processor unit specially adapted to the respective hearing situation.
  • the invention is therefore not limited to the hearing situation "car” shown in the embodiment.
  • FIG. 2 shows a simplified schematic representation of the block diagram of a hearing aid system 1, 20 according to the invention with a hearing aid 20, which includes the two microphones 21 and 22 for receiving an acoustic signal and conversion into an electrical signal.
  • the microphone signals are first supplied to a signal preprocessing unit 23. This may include, for example, A / D converter.
  • a directional characteristic with the two microphones 21 and 22 can be generated by a delay element included in the signal preprocessing unit 23 and an addition element.
  • the directional characteristic is adjustable, which can be achieved for example by an adjustable delay time by the delay element.
  • the preprocessed microphone signal is finally fed to the signal processing unit 24. In this signal processing takes place to compensate for the individual hearing damage of a hearing aid wearer.
  • the processed signal optionally after a D / A conversion, is fed back to a receiver 25 for reconversion into an acoustic signal.
  • the hearing device 20 comprises a control unit 26 in conjunction with a memory unit 27.
  • the parameters and settings relating to the signal processing can be changed or certain functions of the hearing aid 20, such as a noise suppression algorithm or a speech signal enhancement algorithm.
  • the adjustment of the directivity of the microphone system 21, 22 is set by the control unit 26 in conjunction with the signal preprocessing unit 23.
  • a transmitting and receiving unit 28 is provided in the hearing aid 20.
  • the sequence programs relating to the signal processing as well as parameters and settings on the hearing device 20 transferred and stored for example in the memory unit 27.
  • a hearing aid system 1, 20 is formed from the hearing aid 20 together with an external processor unit 1.
  • the external processor unit 1 includes the three microphones 11A, 11B and 11C. These also detect acoustic input signals and convert them into electrical input signals. To generate different, in particular adjustable directional characteristics, the microphones 11A, 11B, 11C of the external processor unit 1 are first supplied to a signal preprocessing unit 12. The actual signal processing then takes place in the signal processing unit 13.
  • the external processor unit 1 is permanently assigned to a specific listening environment. For example, the external processor unit 1, as in FIG FIG. 1 shown to be mounted in a car.
  • the signal processing in the signal processing unit 13 is then specially adapted to this listening environment.
  • a specific directional characteristic can be set, selected frequency ranges in which interference is to be expected can be amplified less, in contrast to frequency ranges in which useful signals, for example speech, are to be expected and which are particularly emphasized.
  • the external processor unit 1 therefore comprises a control unit 14, a memory unit 15 and a transmitting and receiving unit 16.
  • the control unit 14 is used to set the current sequence program for controlling the signal processing in the signal processing unit 13. Likewise, parameters of the signal processing unit 13 are set.
  • the control unit 14 is connected to a memory unit 15.
  • the external Processor unit 1 is also equipped with a transmitting and receiving unit 16, by means of which a wireless signal transmission with a programming device (not shown) is made possible.
  • a hearing aid wearer with worn hearing aid 20 in the immediate vicinity of the operating external processor unit 1 so recognizes the hearing aid 20 automatically and adjusts the internal signal processing to this listening situation.
  • a signal picked up by the microphones 11A, 11B and 11C and processed in the signal processing unit 13 is wirelessly transmitted to the hearing aid 20 via the transmitting and receiving unit 16 and the transmitting and receiving unit 28 of the hearing aid 20.
  • the transmitted signal is mixed with the microphone signals of the microphones 21 and 22.
  • the weighting of the individual signals is preferably adjustable and is set by means of the control unit 26.
  • the signal generated by the two microphones 21 and 22 may receive the same weight as the signal transmitted from the external processor unit 1.
  • the resulting signal is finally supplied to the signal processing unit 24. This is operated in this operating mode (receiving a signal of the external processor unit 1) in a specially designed for this situation listening program. Finally, the processed signal is converted back into an acoustic signal by the receiver 25 and fed to the hearing aid wearer's hearing.
  • the hearing device 20 recognizes this automatically, for example by the fact that no corresponding signal with a required signal strength can be received, and switches back into a "normal" hearing program.
  • the invention offers the advantage that by using an external processor unit 1, an optimal adaptation of the hearing aid system 1, 20 can be made to a specific hearing situation.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)

Claims (14)

  1. Système ( 1, 20 ) de prothèse auditive ayant une prothèse ( 20 ) auditive, qui comprend un premier transducteur ( 21, 22 ) d'entrée, une première unité ( 24 ) de traitement du signal, un transducteur ( 25 ) de sortie et une unité ( 28 ) de réception, et ayant une unité ( 1 ) extérieure de processeur, qui comprend au moins un deuxième transducteur ( 11A, 11B, 11C ) d'entrée, une deuxième unité ( 13 ) de traitement du signal et une unité ( 16 ) d'émission,
    caractérisé en ce que
    l'unité ( 1 ) extérieure de processeur est associée fixement à un environnement auditif déterminé et il s'effectue, dans l'unité ( 1 ) de processeur, un traitement, adapté à l'environnement auditif, d'un signal d'entrée reçu par le deuxième transducteur ( 11A, 11B, 11C ) d'entrée, l'unité ( 1 ) extérieure de processeur émettant le signal traité par l'intermédiaire de l'unité ( 16 ) d'émission et la prothèse ( 20 ) auditive recevant, au moyen de l'unité ( 28 ) de réception, le signal émis et le sortant par l'intermédiaire du transducteur ( 25 ) de sortie.
  2. Système ( 1, 20 ) de prothèse auditive suivant la revendication 1,
    caractérisé en ce que
    l'unité ( 1 ) extérieure de processeur est constituée pour l'association fixe à des environnements auditifs différents et la deuxième unité ( 13 ) de traitement du signal peut être adaptée à des environnements auditifs différents.
  3. Système ( 1, 20 ) de prothèse auditive suivant la revendication 2,
    caractérisé en ce que
    pour adapter la deuxième unité ( 13 ) de traitement du signal à l'environnement auditif, des paramètres et/ou des fonctions pour l'unité ( 1 ) extérieure de processeur sont réglables.
  4. Système ( 1, 20 ) de prothèse auditive suivant l'une des revendications 1 à 3,
    caractérisé en ce que
    l'unité ( 1 ) extérieure de processeur comprend, pour la production d'une caractéristique de microphone directionnel, un système ( 11A, 11B, 11C ) de microphone directionnel.
  5. Système ( 1, 20 ) de prothèse auditive suivant la revendication 4,
    caractérisé en ce que
    la caractéristique de microphone directionnel est réglable.
  6. Système ( 1, 20 ) de prothèse auditive suivant l'une des revendications 1 à 5,
    caractérisé en ce que
    la prothèse ( 20 ) auditive peut être adaptée à la réception d'un signal de l'unité ( 1 ) extérieure de processeur.
  7. Système ( 1, 20 ) de prothèse auditive suivant la revendication 6,
    caractérisé en ce que
    il y a plusieurs unités extérieures de processeur, qui sont associées fixement à des environnements auditifs différents, et la prothèse ( 20 ) auditive peut être adaptée à la réception de signaux des unités extérieures de processeur différentes.
  8. Système ( 1, 20 ) de prothèse auditive suivant la revendication 6 ou 7,
    caractérisé en ce que
    la prothèse ( 20 ) auditive détecte automatiquement si l'unité ( 28 ) de réception reçoit un signal d'une unité ( 1 ) extérieure de processeur et la prothèse ( 20 ) auditive peut être adaptée automatiquement à la réception du signal.
  9. Système ( 1, 20 ) de prothèse auditive suivant l'une des revendications 6 à 8,
    caractérisé en ce que
    la première unité ( 24 ) de traitement du signal peut être adaptée à la réception d'un signal de l'unité ( 1 ) extérieure de processeur.
  10. Système ( 1, 20 ) de prothèse auditive suivant l'une des revendications 1 à 9,
    caractérisé en ce que
    un traitement supplémentaire du signal reçu a lieu dans la prothèse ( 20 ) auditive avant la remise du signal.
  11. Système ( 1, 20 ) de prothèse auditive suivant la revendication 10,
    caractérisé en ce que
    le signal reçu peut être mélangé à un signal enregistré par le premier transducteur ( 21, 22 ) d'entrée.
  12. Système ( 1, 20 ) de prothèse auditive suivant la revendication 11,
    caractérisé en ce que
    les signaux peuvent être mélangés avec une pondération réglable.
  13. Procédé pour faire fonctionner une prothèse ( 20 ) auditive ayant un transducteur ( 21, 22 ) d'entrée, une première unité ( 24 ) de traitement du signal, un transducteur ( 25 ) de sortie et un dispositif ( 28 ) de réception, comprenant les stades suivants :
    e) on se procure une unité ( 1 ) extérieure de processeur, qui est associée à un environnement auditif déterminé et qui comprend un transducteur ( 11A, 11B, 11C ) d'entrée, une deuxième unité ( 13 ) de traitement du signal et un dispositif ( 16 ) d'émission dans un environnement auditif préféré du porteur de la prothèse auditive,
    f) on adapte le traitement du signal dans l'unité ( 1 ) extérieure de processeur à l'environnement auditif,
    g) on enregistre et on traite un signal d'entrée par l'unité ( 1 ) extérieure de processeur,
    h) on envoie le signal traité à la prothèse ( 20 ) auditive,
    i) le signal émis est reçu par la prothèse ( 20 ) auditive et est sortie par l'intermédiaire du transducteur ( 25 ) de sortie.
  14. Procédé suivant la revendication 13, caractérisé en ce qu'on traite davantage le signal reçu avant la sortie du signal.
EP03009466.8A 2002-06-24 2003-04-25 Système de prothèse auditive avec prothèse auditive et unité processeur externe Expired - Lifetime EP1377118B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10228157A DE10228157B3 (de) 2002-06-24 2002-06-24 Hörgerätesystem mit einem Hörgerät und einer externen Prozessoreinheit
DE10228157 2002-06-24

Publications (3)

Publication Number Publication Date
EP1377118A2 EP1377118A2 (fr) 2004-01-02
EP1377118A3 EP1377118A3 (fr) 2008-10-29
EP1377118B1 true EP1377118B1 (fr) 2015-02-25

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Country Link
US (1) US7072480B2 (fr)
EP (1) EP1377118B1 (fr)
DE (1) DE10228157B3 (fr)
DK (1) DK1377118T3 (fr)

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EP1377118A2 (fr) 2004-01-02
US7072480B2 (en) 2006-07-04
DE10228157B3 (de) 2004-01-08
EP1377118A3 (fr) 2008-10-29
US20030235319A1 (en) 2003-12-25
DK1377118T3 (en) 2015-06-08

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