EP1662841A2 - Acoustic system with automatic change-over - Google Patents

Acoustic system with automatic change-over Download PDF

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Publication number
EP1662841A2
EP1662841A2 EP05110499A EP05110499A EP1662841A2 EP 1662841 A2 EP1662841 A2 EP 1662841A2 EP 05110499 A EP05110499 A EP 05110499A EP 05110499 A EP05110499 A EP 05110499A EP 1662841 A2 EP1662841 A2 EP 1662841A2
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European Patent Office
Prior art keywords
signal
acoustic system
signals
input signal
hearing aid
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EP05110499A
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German (de)
French (fr)
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EP1662841A3 (en
EP1662841B1 (en
Inventor
Kunibert Husung
Tom Weidner
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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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
    • H04R25/43—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
    • 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
    • H04R25/55—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
    • H04R25/55—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
    • H04R29/00—Monitoring arrangements; Testing arrangements

Definitions

  • the present invention relates to an acoustic system, in particular a hearing aid with a microphone device, a loudspeaker device, a signal processing device for receiving a first input signal from the microphone device and outputting an output signal to the loudspeaker device and a receiving device for receiving electromagnetic signals and outputting a second input signal to the signal processing device.
  • hearing aids can usually be manually switched to a corresponding hearing program. This switching occurs, for example, with the aid of a button.
  • the manual switching is uncomfortable and often takes place with a time delay, so that, for example, the beginning of a communication can not be perceived.
  • hearing aids have been developed that are able to automatically switch to a corresponding hearing program.
  • Such a hearing aid is known from the publication US 6,763,116 B2.
  • the recorded acoustic signal is examined for noise or noise components.
  • transmission parameters are changed or entire hearing programs are switched.
  • the object of the present invention is thus to improve the automatic switching of acoustic systems or hearing aids on the basis of the received signals.
  • an acoustic system in particular a hearing aid, with a microphone device, an output device, a signal processing device for receiving a first input signal from the microphone device and outputting an output signal to the output device and a receiving device for receiving electromagnetic signals and for outputting a second input signal to the signal processing device, wherein the signal processing device has a high-frequency detector for analyzing the second input signal, with the output signal of the signal processing device is controllable.
  • the invention provides a method for operating an acoustic system, in particular a hearing aid, by processing a first input signal from a microphone device and processing a second input signal from a receiving device for receiving electromagnetic signals, and analyzing the second input signal for high-frequency components, wherein the processing of the first Input signal depending on the analysis result takes place.
  • processing is here also a switching off a signal and / or a connection of another signal, for. As a telecoil signal, understood.
  • a control signal is thus used for the signal processing which does not receive or process a corresponding acoustic system according to the prior art.
  • frequency components above 1 MHz are detected with the high-frequency detector.
  • This electromagnetic signals can be detected by mobile phones, so that, for example, a hearing aid can be switched to a corresponding phone program.
  • modulations of high-frequency signals can be detected with the high-frequency detector.
  • very specific signals can be detected, so that hearing aid programs can be switched very differentiated.
  • the receiving device may be designed to receive GSM, UMTS and / or Bluetooth signals.
  • the receiving device may also be equipped to receive signals from a cordless phone. The detection of these signals allows a very specific processing by automatic means.
  • the signal processing device can be switched into a respective processing program in dependence on the output signal of the high-frequency detector.
  • This automatic switching not only increases the comfort of the acoustic system but may also provide a larger number of switching programs that could not be selected by manual switches.
  • a particular advantage of an acoustic system or method according to the invention results from binaural care of a patient.
  • a level measuring device can be installed in the signal processing device of the two or both hearing aids to determine the level or the level difference of the output signals of the high-frequency detectors for further signal processing. In this way, it can be determined, for example, whether there is an electromagnetic near or far field. Accordingly, the signal processing can be switched.
  • the hearing aid shown schematically in FIG 1 based on a circuit diagram has a microphone M, an audio input A and a telephone coil T.
  • a preamplifier V receives the signals of the audio input A, the microphone M and the telecoil T.
  • the preamplifier V has an A / D converter and a voltage regulator.
  • a digital signal processing D with clocked output stage receives the signal of the preamplifier V. Both, both the preamplifier V and the digital signal processing D are powered by a battery B with voltage. Furthermore, a VC-controller VC (volume control) for volume adjustment and a programming socket P for programming the hearing aid to the digital signal processing D is connected. Via an MTO switch MTO, the digital signal processing D can be switched to a microphone mode, a telephone mode or switched off.
  • an HF detector HFD is connected to the digital signal processing D. This analyzes the signals in the high-frequency range.
  • the RF detector may have its own receiving device or the signals of an otherwise usable receiving device, for. As a telecoil received.
  • the signal of the preamplifier V is processed according to the manually or automatically selected program or the parameters thus selected.
  • the resulting output signal is forwarded to a handset H.
  • electrodes, voice coils, vibration sensors, etc. may also be provided as output devices.
  • the high-frequency detector HFD evaluates in the hearing system, for example, a transmitted GSM signal at about 960 MHz or 1.8 GHz. This signal was sent in the immediate vicinity of the hearing aid by a mobile device and recorded by the antenna of the RF detector HFD. If the level of the GSM signal exceeds a predetermined threshold, this indicates that a GSM mobile device is being used by the hearing aid wearer. Accordingly, the hearing aid z. B. in a telephone program (Hörspulenprogramm) or a correspondingly adapted microphone program.
  • a transmitted GSM signal at about 960 MHz or 1.8 GHz. This signal was sent in the immediate vicinity of the hearing aid by a mobile device and recorded by the antenna of the RF detector HFD. If the level of the GSM signal exceeds a predetermined threshold, this indicates that a GSM mobile device is being used by the hearing aid wearer. Accordingly, the hearing aid z. B. in a telephone program (Hörspulenprogramm) or a correspondingly adapted microphone program
  • UMTS signals, Bluetooth signals or signals of a cordless telephone in the range of 2.4 GHz or 1.8 to 1.9 GHz can be received with the RF detector HFD.
  • specific modulations in the respective recorded signal can be searched for. For example, if UMTS-specific modulations are detected, it can be switched to telephone operation, since the hearing aid wearer is currently using a secure UMTS phone. Bluetooth transmitters transmitting in a frequency range close to the UMTS frequency band do not use the UMTS-specific modulations.
  • the sensitivity of the high-frequency detector HFD can be adjusted so that no program change takes place in the second hearing aid in the case of binaural supply.
  • the level of the radio frequency signal radiated from the mobile phone is on one hearing aid higher than the other. This level difference indicates that it is a telephone situation, so that the hearing aid can be switched to the telephone mode, which registers the high level.
  • the near field detected by the two hearing aids can thus be used for unambiguous switching of the hearing aid.

Abstract

A signal processing unit (D) processes amplified microphone signal and outputs it through a speaker. A high frequency detector (HFD) analyzes the amplified electromagnetic signal received by a telephone coil of global system for mobile communication (GSM), universal mobile telecommunication system (UMTS) or Bluetooth, for detection of frequency component of 1MHz to switch over to a telephone hearing loop program. An independent claim is also included for method of operating a hearing aid system.

Description

Die vorliegende Erfindung betrifft ein Akustiksystem, insbesondere ein Hörgerät mit einer Mikrofoneinrichtung, einer Lautsprechereinrichtung, einer Signalverarbeitungseinrichtung zur Aufnahme eines ersten Eingangssignals von der Mikrofoneinrichtung und zur Ausgabe eines Ausgangssignals an die Lautsprechereinrichtung sowie einer Empfangseinrichtung zum Empfang elektromagnetischer Signale und zur Ausgabe eines zweiten Eingangssignals an die Signalverarbeitungseinrichtung.The present invention relates to an acoustic system, in particular a hearing aid with a microphone device, a loudspeaker device, a signal processing device for receiving a first input signal from the microphone device and outputting an output signal to the loudspeaker device and a receiving device for receiving electromagnetic signals and outputting a second input signal to the signal processing device.

Hörgeräte lassen sich üblicherweise je nach Hörsituation manuell in ein entsprechendes Hörprogramm schalten. Dieses Schalten erfolgt beispielsweise mit Hilfe eines Tasters. Das manuelle Schalten ist unkomfortabel und erfolgt vielfach mit zeitlicher Verzögerung, so dass beispielsweise der Beginn einer Kommunikation nicht wahrgenommen werden kann.Depending on the hearing situation, hearing aids can usually be manually switched to a corresponding hearing program. This switching occurs, for example, with the aid of a button. The manual switching is uncomfortable and often takes place with a time delay, so that, for example, the beginning of a communication can not be perceived.

Aus diesem Grund wurden Hörgeräte entwickelt, die in der Lage sind, automatisch in ein entsprechendes Hörprogramm zu schalten. Ein derartiges Hörgerät ist aus der Druckschrift US 6,763,116 B2 bekannt. Dabei wird das aufgenommene akustische Signal hinsichtlich Stör- bzw. Rauschanteilen untersucht. In Abhängigkeit der analysierten Rauschsignale werden Übertragungsparameter verändert oder ganze Hörprogramme geschaltet.For this reason, hearing aids have been developed that are able to automatically switch to a corresponding hearing program. Such a hearing aid is known from the publication US 6,763,116 B2. In this case, the recorded acoustic signal is examined for noise or noise components. Depending on the analyzed noise signals, transmission parameters are changed or entire hearing programs are switched.

Die Analyse der Signale nach Störanteilen ist jedoch sehr aufwändig und das Ergebnis ist oftmals nicht eindeutig.However, the analysis of the signals according to noise components is very complex and the result is often ambiguous.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, das automatische Schalten von Akustiksystemen bzw. Hörgeräten auf der Grundlage der empfangenen Signale zu verbessern.The object of the present invention is thus to improve the automatic switching of acoustic systems or hearing aids on the basis of the received signals.

Erfindungsgemäß wird diese Aufgabe gelöst durch ein Akustiksystem, insbesondere Hörgerät, mit einer Mikrofoneinrichtung, einer Ausgabeeinrichtung, einer Signalverarbeitungseinrichtung zur Aufnahme eines ersten Eingangssignals von der Mikrofoneinrichtung und zur Ausgabe eines Ausgangssignals an die Ausgabeeinrichtung und einer Empfangseinrichtung zum Empfang elektromagnetischer Signale und zur Ausgabe eines zweiten Eingangssignals an die Signalverarbeitungseinrichtung, wobei die Signalverarbeitungseinrichtung einen Hochfrequenzdetektor zur Analyse des zweiten Eingangssignals aufweist, mit dessen Ausgangssignal die Signalverarbeitungseinrichtung steuerbar ist.According to the invention this object is achieved by an acoustic system, in particular a hearing aid, with a microphone device, an output device, a signal processing device for receiving a first input signal from the microphone device and outputting an output signal to the output device and a receiving device for receiving electromagnetic signals and for outputting a second input signal to the signal processing device, wherein the signal processing device has a high-frequency detector for analyzing the second input signal, with the output signal of the signal processing device is controllable.

Darüber hinaus ist erfindungsgemäß vorgesehen ein Verfahren zum Betreiben eines Akustiksystems, insbesondere eines Hörgeräts, durch Verarbeiten eines ersten Eingangssignals von einer Mikrofoneinrichtung und Verarbeiten eines zweiten Eingangssignals von einer Empfangseinrichtung zum Empfang elektromagnetischer Signale, sowie Analysieren des zweiten Eingangssignals nach Hochfrequenzanteilen, wobei das Verarbeiten des ersten Eingangssignals in Abhängigkeit von dem Analyseergebnis erfolgt. Unter dem Begriff "Verarbeiten" wird hier auch ein Abschalten eines Signals und/oder ein Zuschalten eines weiteren Signals, z. B. eines Telefonspulensignals, verstanden.In addition, the invention provides a method for operating an acoustic system, in particular a hearing aid, by processing a first input signal from a microphone device and processing a second input signal from a receiving device for receiving electromagnetic signals, and analyzing the second input signal for high-frequency components, wherein the processing of the first Input signal depending on the analysis result takes place. The term "processing" is here also a switching off a signal and / or a connection of another signal, for. As a telecoil signal, understood.

In vorteilhafter Weise wird für die Signalverarbeitung somit ein Steuersignal verwendet, das ein entsprechendes Akustiksystem nach dem Stand der Technik gar nicht empfängt bzw. verarbeitet.In an advantageous manner, a control signal is thus used for the signal processing which does not receive or process a corresponding acoustic system according to the prior art.

Vorzugsweise werden mit dem Hochfrequenzdetektor Frequenzanteile oberhalb von 1 MHz detektiert. Damit können elektromagnetische Signale von Mobilfunktelefonen erfasst werden, so dass beispielsweise ein Hörgerät auf ein entsprechendes Telefonprogramm umgeschaltet werden kann.Preferably, frequency components above 1 MHz are detected with the high-frequency detector. This electromagnetic signals can be detected by mobile phones, so that, for example, a hearing aid can be switched to a corresponding phone program.

Entsprechend einer Weiterentwicklung können mit dem Hochfrequenzdetektor Modulationen von Hochfrequenzsignalen detektiert werden. Auf diese Weise können sehr spezifische Signale detektiert werden, so dass Hörgeräteprogramme sehr differenziert geschaltet werden können.According to a further development, modulations of high-frequency signals can be detected with the high-frequency detector. In this way, very specific signals can be detected, so that hearing aid programs can be switched very differentiated.

Speziell kann die Empfangseinrichtung zum Empfang von GSM-, UMTS- und/oder Bluetooth-Signalen ausgelegt sein. Darüber hinaus kann die Empfangseinrichtung auch zum Empfang von Signalen eines Schnurlostelefons ausgestattet sein. Die Detektion dieser Signale ermöglicht ein sehr spezifisches Verarbeiten auf automatischem Wege.Specifically, the receiving device may be designed to receive GSM, UMTS and / or Bluetooth signals. In addition, the receiving device may also be equipped to receive signals from a cordless phone. The detection of these signals allows a very specific processing by automatic means.

Wie bereits angedeutet, kann die Signalverarbeitungseinrichtung in Abhängigkeit von dem Ausgangssignal des Hochfrequenzdetektors in ein jeweiliges Verarbeitungsprogramm geschaltet werden. Durch dieses automatische Schalten erhöht sich nicht nur der Komfort des Akustiksystems, sondern es kann unter Umständen auch eine größere Anzahl an Schaltprogrammen zur Verfügung gestellt werden, die unter Umständen durch manuelle Schalter nicht angewählt werden könnten.As already indicated, the signal processing device can be switched into a respective processing program in dependence on the output signal of the high-frequency detector. This automatic switching not only increases the comfort of the acoustic system but may also provide a larger number of switching programs that could not be selected by manual switches.

Ein besonderer Vorteil eines erfindungsgemäßen Akustiksystems bzw. Verfahrens ergibt sich bei binauraler Versorgung eines Patienten. Dabei kann in die Signalverarbeitungseinrichtung eines der beiden oder beider Hörgeräte eine Pegelmesseinrichtung eingebaut sein, um die Pegel oder die Pegeldifferenz der Ausgangssignale der Hochfrequenzdetektoren für die weitere Signalverarbeitung zu bestimmen. Auf diese Weise lässt sich beispielsweise bestimmen, ob ein elektromagnetisches Nah- oder Fernfeld vorliegt. Dementsprechend kann die Signalverarbeitung geschaltet werden.A particular advantage of an acoustic system or method according to the invention results from binaural care of a patient. In this case, a level measuring device can be installed in the signal processing device of the two or both hearing aids to determine the level or the level difference of the output signals of the high-frequency detectors for further signal processing. In this way, it can be determined, for example, whether there is an electromagnetic near or far field. Accordingly, the signal processing can be switched.

Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnung näher erläutert, die ein Prinzipschaltbild eines erfindungsgemäßen Hörgeräts zeigt.The present invention will now be explained in more detail with reference to the accompanying drawing, which shows a schematic diagram of a hearing aid according to the invention.

Das nachfolgend näher geschilderte Ausführungsbeispiel stellt eine bevorzugte Ausführungsform der vorliegenden Erfindung dar.The embodiment described in more detail below represents a preferred embodiment of the present invention.

Das in FIG 1 anhand eines Schaltplans schematisch dargestellte Hörgerät besitzt ein Mikrofon M, einen Audioeingang A und eine Telefonspule T. Ein Vorverstärker V nimmt die Signale des Audioeingangs A, des Mikrofons M und der Telefonspule T auf. Außerdem verfügt der Vorverstärker V über einen A/D-Wandler und einen Spannungsregler.The hearing aid shown schematically in FIG 1 based on a circuit diagram has a microphone M, an audio input A and a telephone coil T. A preamplifier V receives the signals of the audio input A, the microphone M and the telecoil T. In addition, the preamplifier V has an A / D converter and a voltage regulator.

Eine digitale Signalverarbeitung D mit getakteter Endstufe nimmt das Signal des Vorverstärkers V auf. Beide, sowohl der Vorverstärker V als auch die digitale Signalverarbeitung D werden von einer Batterie B mit Spannung versorgt. Weiterhin ist ein VC-Steller VC (Volume Control) zur Lautstärkeeinstellung und eine Programmierbuchse P zum Programmieren des Hörgeräts an die digitale Signalverarbeitung D angeschlossen. Über einen MTO-Schalter MTO ist die digitale Signalverarbeitung D in einen Mikrofonmodus, einen Telefonmodus oder abschaltbar.A digital signal processing D with clocked output stage receives the signal of the preamplifier V. Both, both the preamplifier V and the digital signal processing D are powered by a battery B with voltage. Furthermore, a VC-controller VC (volume control) for volume adjustment and a programming socket P for programming the hearing aid to the digital signal processing D is connected. Via an MTO switch MTO, the digital signal processing D can be switched to a microphone mode, a telephone mode or switched off.

Des Weiteren ist an die digitale Signalverarbeitung D ein HF-Detektor HFD angeschlossen. Dieser analysiert die Signale im Hochfrequenzbereich. Der HF-Detektor kann eine eigene Empfangseinrichtung aufweisen oder die Signale einer anderweitig verwendbaren Empfangseinrichtung, z. B. einer Telefonspule, erhalten.Furthermore, an HF detector HFD is connected to the digital signal processing D. This analyzes the signals in the high-frequency range. The RF detector may have its own receiving device or the signals of an otherwise usable receiving device, for. As a telecoil received.

In der digitalen Signalverarbeitung D wird das Signal des Vorverstärkers V entsprechend dem manuell oder automatisch gewählten Programm bzw. den so gewählten Parametern verarbeitet. Das resultierende Ausgangssignal wird an einen Hörer H weitergeleitet. Alternativ können als Ausgabeeinrichtungen auch Elektroden, Schwingspulen, Vibrationsgeber etc. vorgesehen sein.In the digital signal processing D, the signal of the preamplifier V is processed according to the manually or automatically selected program or the parameters thus selected. The resulting output signal is forwarded to a handset H. Alternatively, electrodes, voice coils, vibration sensors, etc. may also be provided as output devices.

Der Hochfrequenzdetektor HFD wertet im Hörsystem beispielsweise ein ausgesandtes GSM-Signal bei etwa 960 MHz bzw. 1,8 GHz aus. Dieses Signal wurde in unmittelbarer Nähe des Hörhilfegeräts durch ein Mobilfunkgerät abgesandt und von der Antenne des HF-Detektors HFD aufgenommen. Überschreitet der Pegel des GSM-Signals einen vorgegebenen Schwellwert, deutet dies darauf hin, dass ein GSM-Mobilfunkgerät vom Hörhilfeträger benutzt wird. Dementsprechend schaltet das Hörhilfegerät z. B. in ein Telefonprogramm (Hörspulenprogramm) oder ein entsprechend angepasstes Mikrofonprogramm um.The high-frequency detector HFD evaluates in the hearing system, for example, a transmitted GSM signal at about 960 MHz or 1.8 GHz. This signal was sent in the immediate vicinity of the hearing aid by a mobile device and recorded by the antenna of the RF detector HFD. If the level of the GSM signal exceeds a predetermined threshold, this indicates that a GSM mobile device is being used by the hearing aid wearer. Accordingly, the hearing aid z. B. in a telephone program (Hörspulenprogramm) or a correspondingly adapted microphone program.

Alternativ können mit dem HF-Detektor HFD auch beispielsweise UMTS-Signale, Bluetooth-Signale oder Signale eines Schnurlostelefons im Bereich von 2,4 GHz bzw. 1,8 bis 1,9 GHz empfangen werden.Alternatively, for example, UMTS signals, Bluetooth signals or signals of a cordless telephone in the range of 2.4 GHz or 1.8 to 1.9 GHz can be received with the RF detector HFD.

Um die Sicherheit, mit der ein entsprechendes Sendesystem erkannt wird, zu erhöhen, können spezifische Modulationen in dem jeweils aufgenommenen Signal gesucht werden. Werden beispielsweise UMTS-spezifische Modulationen entdeckt, so kann auf Telefonbetrieb umgeschaltet werden, da der Hörgeräteträger mit Sicherheit momentan ein UMTS-Telefon benutzt. Bluetooth-Sender, die in einem dem UMTS-Frequenzband nahe gelegenen Frequenzbereich senden, benutzen nicht die UMTS-spezifischen Modulationen.In order to increase the security with which a corresponding transmission system is recognized, specific modulations in the respective recorded signal can be searched for. For example, if UMTS-specific modulations are detected, it can be switched to telephone operation, since the hearing aid wearer is currently using a secure UMTS phone. Bluetooth transmitters transmitting in a frequency range close to the UMTS frequency band do not use the UMTS-specific modulations.

In vorteilhafter Weise ist somit kein manuelles Umschalten mehr nötig und es müssen nicht komplizierte Algorithmen zur automatischen Umschaltung verwendet werden.Advantageously, therefore, manual switching is no longer necessary and it is not necessary to use complicated algorithms for automatic switching.

Die Empfindlichkeit des Hochfrequenzdetektors HFD kann so eingestellt werden, dass bei binauraler Versorgung im zweiten Hörhilfegerät kein Programmwechsel stattfindet.The sensitivity of the high-frequency detector HFD can be adjusted so that no program change takes place in the second hearing aid in the case of binaural supply.

Hält ein Hörgeräteträger, der binaural versorgt ist, ein Mobiltelefon an sein Ohr, so ist der Pegel des hochfrequenten Signals, das von dem Mobilfunktelefon abgestrahlt wird, an einem Hörgerät höher als am anderen. Diese Pegeldifferenz deutet an, dass es sich um eine Telefonsituation handelt, so dass dasjenige Hörgerät in den Telefonmodus geschaltet werden kann, das den hohen Pegel registriert. Das durch die beiden Hörgeräte detektierte Nahfeld kann also zum eindeutigen Schalten des Hörgeräts verwendet werden.When a hearing aid wearer who is binaurally powered holds a mobile phone to his ear, the level of the radio frequency signal radiated from the mobile phone is on one hearing aid higher than the other. This level difference indicates that it is a telephone situation, so that the hearing aid can be switched to the telephone mode, which registers the high level. The near field detected by the two hearing aids can thus be used for unambiguous switching of the hearing aid.

Liegt hingegen ein Fernfeld vor, so sind die elektromagnetischen Pegel in beiden Hörgeräten in etwa gleich hoch. In einer derartigen Situation wäre es falsch, in den Telefonmodus zu schalten. Durch diese Nahfeld-Fernfeld-Unterscheidung kann eine erhöhte Störsicherheit bei den verlinkten Hörgeräten erreicht werden.If, on the other hand, there is a far field, the electromagnetic levels in both hearing aids are approximately the same. In such a situation, it would be wrong to switch to the phone mode. By means of this near-field far-field distinction, increased interference immunity in the linked hearing devices can be achieved.

Claims (17)

Akustiksystem, insbesondere Hörgerät, mit - einer Mikrofoneinrichtung (M), - einer Ausgabeeinrichtung (H), - einer Signalverarbeitungseinrichtung (V, D) zur Aufnahme eines ersten Eingangssignals von der Mikrofoneinrichtung und zur Ausgabe eines Ausgangssignals an die Ausgabeeinrichtung (H) und - einer Empfangseinrichtung zum Empfang elektromagnetischer Signale und zur Ausgabe eines zweiten Eingangssignals an die Signalverarbeitungseinrichtung (V, D), dadurch gekennzeichnet, dass - die Signalverarbeitungseinrichtung (V, D) einen Hochfrequenzdetektor (HFD) zur Analyse des zweiten Eingangssignals aufweist, mit dessen Ausgangssignal die Signalverarbeitungseinrichtung steuerbar ist. Acoustic system, in particular hearing aid, with a microphone device (M), an output device (H), - Signal processing means (V, D) for receiving a first input signal from the microphone device and for outputting an output signal to the output device (H) and a receiving device for receiving electromagnetic signals and for outputting a second input signal to the signal processing device (V, D), characterized in that - The signal processing means (V, D) comprises a high-frequency detector (HFD) for analyzing the second input signal, with the output signal of the signal processing means is controllable. Akustiksystem nach Anspruch 1, wobei mit dem Hochfrequenzdetektor (HFD) Frequenzanteile oberhalb von 1 MHz detektierbar sind.Acoustic system according to claim 1, wherein with the high frequency detector (HFD) frequency components above 1 MHz are detectable. Akustiksystem nach Anspruch 1 oder 2, wobei mit dem Hochfrequenzdetektor (HFD) eine Modulation von Hochfrequenzanteilen detektierbar ist.Acoustic system according to claim 1 or 2, wherein with the high frequency detector (HFD) a modulation of high frequency components is detectable. Akustiksystem nach einem der vorhergehenden Ansprüche, wobei die Empfangseinrichtung zum Empfang von GSM-, UMTS- und/oder Bluetooth-Signalen ausgelegt ist.Acoustic system according to one of the preceding claims, wherein the receiving device for the reception of GSM, UMTS and / or Bluetooth signals is designed. Akustiksystem nach einem der vorhergehenden Ansprüche, wobei die Empfangseinrichtung zum Empfang von Signalen eines Schnurlostelefons ausgelegt ist.Acoustic system according to one of the preceding claims, wherein the receiving device is adapted to receive signals of a cordless telephone. Akustiksystem nach einem der vorhergehenden Ansprüche, wobei die Signalverarbeitungseinrichtung (V, D) in Abhängigkeit von dem Ausgangssignal des Hochfrequenzdetektors (HFD) in ein jeweiliges Verarbeitungsprogramm schaltbar ist.Acoustic system according to one of the preceding claims, wherein the signal processing device (V, D) as a function of from the output of the high frequency detector (HFD) is switchable to a respective processing program. Hörgerätepaar mit zwei Hörgeräten nach einem der vorhergehenden Ansprüche, wobei in die Signalverarbeitungseinrichtung (V, D, HFD) eines der beiden oder beider Hörgeräte eine Pegelmesseinrichtung eingebaut ist, um die Pegel oder die Pegeldifferenz der Ausgangssignale der Hochfrequenzdetektoren für die weitere Signalverarbeitung zu bestimmen.Hearing aid pair with two hearing aids according to one of the preceding claims, wherein in the signal processing means (V, D, HFD) of the two or both hearing aids a level measuring device is installed to determine the level or the level difference of the output signals of the high frequency detectors for further signal processing. Hörgerätepaar nach Anspruch 7, wobei Informationen der Hochfrequenzdetektoren zwischen beiden Hörgeräten übertragbar sind.Hearing aid pair according to claim 7, wherein information of the high-frequency detectors between the two hearing aids are transferable. Verfahren zum Betreiben eines Akustiksystems, insbesondere eines Hörgeräts, durch - Verarbeiten eines ersten Eingangssignals von einer Mikrofoneinrichtung (M) und - Verarbeiten eines zweiten Eingangssignals von einer Empfangseinrichtung zum Empfang elektromagnetischer Signale, gekennzeichnet durch - Analysieren des zweiten Eingangssignals nach Hochfrequenzanteilen, wobei - das Verarbeiten des ersten Eingangssignals in Abhängigkeit von dem Analyseergebnis erfolgt. A method for operating an acoustic system, in particular a hearing aid, by - Processing a first input signal from a microphone device (M) and Processing a second input signal from a receiving device for receiving electromagnetic signals, marked by - Analyzing the second input signal to high frequency components, wherein - The processing of the first input signal in dependence on the analysis result takes place. Verfahren nach Anspruch 9, wobei in Abhängigkeit des Analyseergebnisses ein Telefonspulensignal zur Erzeugung eines Ausgangssignals des Akustiksystems zumindest mitverarbeitet wird.The method of claim 9, wherein depending on the analysis result, a telecoil signal for generating an output signal of the acoustic system is at least co-processed. Verfahren nach Anspruch 9 oder 10, wobei Hochfrequenzanteile oberhalb von 1 MHz detektiert und analysiert werden.The method of claim 9 or 10, wherein radio frequency components above 1 MHz are detected and analyzed. Verfahren nach einem der Ansprüche 9 bis 11, wobei eine Modulation von Hochfrequenzanteilen des zweiten Eingangssignals detektiert wird.Method according to one of claims 9 to 11, wherein a modulation of high frequency components of the second input signal is detected. Verfahren nach einem der Ansprüche 9 bis 12, wobei von der Empfangseinrichtung GSM-, UMTS- und/oder Bluetooth-Signale empfangen werden.Method according to one of claims 9 to 12, wherein the receiving device GSM, UMTS and / or Bluetooth signals are received. Verfahren nach einem der Ansprüche 9 bis 13, wobei von der Empfangseinrichtung DECT-Signale eines Schnurlostelefons empfangen werden.Method according to one of claims 9 to 13, wherein received from the receiving device DECT signals of a cordless telephone. Verfahren nach einem der Ansprüche 9 bis 14, wobei beim Verarbeiten der Eingangssignale in Abhängigkeit von dem Analyseergebnis in ein jeweiliges Verarbeitungsprogramm geschaltet wird.Method according to one of claims 9 to 14, wherein in processing the input signals in dependence on the analysis result in a respective processing program is switched. Verfahren nach einem der Ansprüche 9 bis 15, wobei mit einem ersten und einem zweiten Hörgerät jeweils ein Pegel eines jeweils empfangenen Hochfrequenzsignals oder eine diesbezügliche Pegeldifferenz bestimmt wird, um ein elektromagnetisches Nah- oder Fernfeld unterscheiden zu können.Method according to one of claims 9 to 15, wherein with a first and a second hearing aid in each case a level of a respectively received high-frequency signal or a related level difference is determined in order to distinguish an electromagnetic near or far field. Verfahren nach Anspruch 16, wobei Informationen bezüglich des oder der Hochfrequenzsignale zwischen beiden Hörgeräten übertragen werden.The method of claim 16, wherein information relating to the radio frequency signal (s) is transmitted between both hearing aids.
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