EP1874088A2 - Bluetooth transmission device for hearing-aids and corresponding transmission method - Google Patents

Bluetooth transmission device for hearing-aids and corresponding transmission method Download PDF

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Publication number
EP1874088A2
EP1874088A2 EP07108797A EP07108797A EP1874088A2 EP 1874088 A2 EP1874088 A2 EP 1874088A2 EP 07108797 A EP07108797 A EP 07108797A EP 07108797 A EP07108797 A EP 07108797A EP 1874088 A2 EP1874088 A2 EP 1874088A2
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Prior art keywords
transmission
bluetooth
hearing aid
audio
data
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Granted
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EP07108797A
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German (de)
French (fr)
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EP1874088B1 (en
EP1874088A3 (en
Inventor
Thomas Dr. Lotter
Jürgen Reithinger
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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
    • H04R25/55—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

Definitions

  • the present invention relates to a transmission device for transmitting audio data to a hearing aid having a transmitting device for transmitting audio data in a Bluetooth signal, an encoder integrated in the transmitting device, for compressing the audio data before transmission, and a relay station for converting the Bluetooth Signal from the transmitting device into a signal for inductive transmission to the hearing aid. Moreover, the present invention relates to a corresponding method for transmitting audio data to a hearing device.
  • FM or infrared devices For wireless audio transmission to hearing aids, predominantly FM or infrared devices are used. These are devices that are placed in place of a hearing aid, which are offered as plug-on modules for hearing aids or that are integrated in a hearing aid with significantly additional space requirements.
  • For the audio transmission are basically several electromagnetic transmission paths into consideration.
  • high frequency far field transmission systems and near field inductive transmission systems can be used.
  • space and power-saving short distances (less than 1 to 2 m) to the hearing aid can be bridged.
  • a far-field transmission system for larger distances (range approx. 10 m) needed for a sensible operation For the audio transmission of televisions or hi-fi equipment, however, a far-field transmission system for larger distances (range approx. 10 m) needed for a sensible operation.
  • a data transmission device for wireless data transmission to a hearing aid which includes a high-frequency receiving device for receiving a high-frequency, modulated signal of an external transmitting unit.
  • a mixing device is used for mixing the high-frequency, modulated signal with a reference signal of similar high frequency, so that a modulated output signal can be generated whose carrier frequency is smaller by at least an order of magnitude and which is suitable for inductive transmission.
  • the output signal to the hearing aid is transmitted inductively by a transmitting device.
  • This converter method results in a minimum delay time over the entire radio link, as it is completely dispensed with a demodulation and decoding and a new modulation and coding.
  • a disadvantage of this transmission is that the entire radio link must be built individually, since the data rate in the high-frequency transmission section must be adapted to the data rate in the section with inductive transmission.
  • the object of the present invention is thus to propose a transmission device and a corresponding transmission method, which entail lower development costs.
  • this object is achieved by a transmission device for transmitting audio data to a hearing device with a transmission device for transmitting the audio data in a Bluetooth signal, an encoder integrated in the transmission device, for compressing the audio data before transmission and a relay station for conversion the Bluetooth signal from the transmitting device in a signal for inductive transmission to the hearing aid, wherein in the relay station during the conversion no transcoding is performed, the send device according to the A2DP protocol of Bluetooth sends and the encoder operates at a lower sampling rate than standard A2DP coder.
  • the invention also proposes a method for transmitting audio data to a hearing aid by encoding the audio data, transmitting the audio data to a relay station in a Bluetooth signal and converting the Bluetooth signal into a signal for inductive transmission to the hearing aid, wherein in the conversion no transcoding is performed, the transmission is made in accordance with the A2DP protocol of Bluetooth, and the encoding is performed at a lower sampling rate because hearing aid clock rate is performed than with a standard A2DP encoder.
  • standardized components such as Bluetooth transmitters and Bluetooth receivers as well as the corresponding Bluetooth transmission protocol can thus be used.
  • the standardized components of the BT transmission system are tailored to audio applications (eg error protection).
  • the transmission of the data according to the invention may optionally be bidirectional.
  • data from the hearing aid via the partially standardized transmission path can be transmitted to an external device.
  • the relay station is integrated into a remote control of the hearing device or the hearing aids or else, for example, in a television remote control. This does not require the user to use an additional device for wireless data transmission.
  • the audio bandwidth after compression by the encoder is less than 15 kHz.
  • the audio bandwidth is between 8 and 12 kHz.
  • the audio data stream is already compressed at the transmitting end so that no non-processable information arrives in the hearing aid.
  • the data rate in the Bluetooth signal is below 150 kbit / s. This requires no special compression for the inductive transmission in the baseband.
  • a stereo audio signal 1 is to be transmitted from a television set or from a hi-fi system to a hearing aid or a hearing aid system for binaural supply.
  • the audio signals 1 are sampled in a Bluetooth transmitter 3 and encoded. In this encoding, the data is compressed and summarized in blocks.
  • the Bluetooth transmitter 3 supports a plurality of standard encoders, of which an encoder 4 can be optionally used for transmission.
  • the audio signal 1 is sampled at 44.1 or 48 kHz, resulting in an audio bandwidth of 20 to 24 kHz for the transmitted signal.
  • the data rate r_bt is typically 230 to 350 kbit / s.
  • the standard Bluetooth transmission link 5 enables wireless communication with a range of up to approx. 10 m.
  • a standard Bluetooth receiver with a matching Bluetooth decoder 7 is arranged to decode the encoded on the Bluetooth transmission link 5 audio data.
  • the data rate For the subsequent inductive transmission to the hearing aid system 2, the data rate must be reduced to the value r_hg. Therefore, a hearing aid encoder 8 is provided in the remote control 6, which reduces the data rate accordingly and provides an audio bandwidth of 8 to 10 kHz. In this way, the data are sent via the inductive transmission link 9 to the hearing aid system 2.
  • Each hearing aid of the hearing aid system 2 has a corresponding hearing aid decoder 10, 11.
  • the greater distance from a television or hi-fi system to the hearing aid can thus be bridged by using a standard transmission method to a hearing aid remote with minimal effort and cost.
  • the standard transmission method uses the Bluetooth method, which is the most widely used standard for wireless stereo audio transmission within a home.
  • the "last meter" from the remote control to the hearing aid is finally bridged inductively.
  • the audio signal is digitized in the Bluetooth transmitting station 3 and transmitted to the relay station, namely the remote control 6, by means of the standardized audio transmission protocol A2DP.
  • This standard protocol requires the support of a license-free codec, SBC.
  • the standard offers the possibility to define / use a manufacturer-dependent codec.
  • the inductive transmission path 9 is selected, in which, however, the data transmission rate must be reduced in order to increase the efficiency and to allow corresponding power savings.
  • the data reduction takes place by the transcoding of the Bluetooth A2DP data stream in the relay station or remote control 6 to a hearing aid data stream.
  • the solution for the wireless radio transmission path shown in FIG. 1 has some disadvantages.
  • the standard high-bandwidth Bluetooth data transmission is inefficient for operation with a hearing aid.
  • hearing aids are usually operated with lower audio bandwidth (approximately 8 to 10 kHz) than audio applications for normal hearing (greater than 20 kHz).
  • the transcoding in the relay station leads to a reduced audio quality and generates an increased power consumption, whereby the service life of the relay station is reduced.
  • Another disadvantage is that the delay time of the voice and music from the television to the hearing aid is increased due to the double coding delay (long audio blocks on the Bluetooth link) and the processing delays of the remote control. This is to be considered critical in that for the audio transmission from the television to the hearing aid to ensure synchronicity with the images and it comes to the superposition of direct sound from the television with transmitted audio signal to an unwanted coloring or reverberation of the music or speech signal.
  • the system shown in principle in FIG. 2 is used.
  • the TV or hi-fi signal 1 is converted into a desired hearing aid format by means of a hearing device encoder 14. This is characterized by the audio bandwidth of 8 to 10 kHz.
  • the signal is encoded by the hearing aid encoder 14, that results in a data rate r_hg suitable for the subsequent inductive transmission path. This is realized by a corresponding block length of the data blocks.
  • the hearing aid encoder 14 which compresses the stereo signal after digitization with hearing aid sampling rate, functions as a standard compliant alternative in the Bluetooth A2DP application to the SBC encoder.
  • the SBC can also be supported in the transmitter, but is not used for the hearing aid application.
  • the remaining part of the physical transmission via Bluetooth A2DP protocol can be used unchanged for the Bluetooth transmission link 15.
  • the Bluetooth data stream is received in the hearing aid format with a standard Bluetooth receiver and can be forwarded without recoding or digital sample rate conversion to an inductive transmitter of the remote control 16.
  • the Bluetooth receiver and the inductive transmitter are therefore symbolized in FIG. 2 as a bypass 17.
  • the remaining data transmission path namely the inductive transmission path 9 and the hearing aid system 2 with the hearing aid encoders 10 and 11 corresponds to those of FIG. 1.

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  • 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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The device has a transmission unit (13) for transmission of audio data into a Bluetooth signal, and a hearing aid coder (14) integrated into the unit for compression of the audio data before transmission. A code conversion is not executed in a relay station (16) during the transformation. The transmission unit transmits the signal according to an Advanced Audio Distribution Profile (A2DP) protocol, and the coder scans as a A2DP coder, where the coder has a scanning rate that is less than a standard Bluetooth coder. An independent claim is also included for a method for transmission of audio data to a hearing device.

Description

Die vorliegende Erfindung betrifft eine Übertragungsvorrichtung zum Übertragen von Audiodaten an ein Hörgerät mit einer Sendeeinrichtung zum Senden von Audiodaten in einem Bluetooth-Signal, einem Codierer, der in die Sendeeinrichtung integriert ist, zum Komprimieren der Audiodaten vor dem Senden und einer Relaisstation zum Wandeln des Bluetooth-Signals von der Sendeeinrichtung in ein Signal zur induktiven Übertragung an das Hörgerät. Darüber hinaus betrifft die vorliegende Erfindung ein entsprechendes Verfahren zum Übertragen von Audiodaten an ein Hörgerät.The present invention relates to a transmission device for transmitting audio data to a hearing aid having a transmitting device for transmitting audio data in a Bluetooth signal, an encoder integrated in the transmitting device, for compressing the audio data before transmission, and a relay station for converting the Bluetooth Signal from the transmitting device into a signal for inductive transmission to the hearing aid. Moreover, the present invention relates to a corresponding method for transmitting audio data to a hearing device.

Immer mehr besteht der Bedarf, Audiodaten für Sprache oder Musik von Fernseh- oder HiFi-Geräten drahtlos, breitbandig an Hörgeräte zu übertragen. Insbesondere soll die Übertragung auch an ein Hörgerätesystem mit zwei Hörgeräten zur binauralen Versorgung möglich sein.There is an increasing demand for wirelessly transmitting audio data for voice or music from television or hi-fi devices to hearing aids over broadband. In particular, the transmission should also be possible to a hearing aid system with two hearing aids for binaural care.

Zwecks kabelloser Audioübertragung zu Hörgeräten werden überwiegend FM- oder Infrarot-Geräte verwendet. Hierbei handelt es sich um Geräte, die anstelle eines Hörgeräts aufgesetzt werden, die als Aufsteckmodule für Hörgeräte angeboten werden oder die in einem Hörgerät unter deutlich zusätzlichem Platzbedarf integriert sind.For wireless audio transmission to hearing aids, predominantly FM or infrared devices are used. These are devices that are placed in place of a hearing aid, which are offered as plug-on modules for hearing aids or that are integrated in a hearing aid with significantly additional space requirements.

Für die Audioübertragung kommen grundsätzlich mehrere elektromagnetische Übertragungswege in Betracht. So können beispielsweise Hochfrequenz-Fernfeldübertragungssysteme und induktive Nahfeldübertragungssysteme eingesetzt werden. Mittels eines digitalen, induktiven Übertragungssystems können Platz und Strom sparend kurze Entfernungen (kleiner 1 bis 2 m) zum Hörgerät überbrückt werden. Für die Audioübertragung von Fernsehgeräten oder HiFi-Anlagen wird jedoch ein Fernfeldübertragungssystem für größere Distanzen (Reichweite ca. 10 m) für einen sinnvollen Betrieb benötigt.For the audio transmission are basically several electromagnetic transmission paths into consideration. For example, high frequency far field transmission systems and near field inductive transmission systems can be used. Using a digital, inductive transmission system, space and power-saving short distances (less than 1 to 2 m) to the hearing aid can be bridged. For the audio transmission of televisions or hi-fi equipment, however, a far-field transmission system for larger distances (range approx. 10 m) needed for a sensible operation.

Aus der nachveröffentlichten Patentanmeldung DE 10 2005 005 603.2 ist eine Datenübertragungsvorrichtung zur drahtlosen Datenübertragung an ein Hörgerät bekannt, die eine Hochfrequenzempfangseinrichtung zum Empfangen eines hochfrequenten, modulierten Signals einer externen Sendeeinheit beinhaltet. Eine Mischeinrichtung dient zum Mischen des hochfrequenten, modulierten Signals mit einem Referenzsignal ähnlich hoher Frequenz, so dass ein moduliertes Ausgangssignal erzeugbar ist, dessen Trägerfrequenz um mindestens eine Größenordnung geringer ist und das sich zur induktiven Übertragung eignet. Schließlich wird das Ausgangssignal an das Hörgerät durch eine Sendeeinrichtung induktiv übertragen. Dieses Umsetzerverfahren resultiert in einer minimalen Verzögerungszeit über der gesamten Funkstrecke, da auf eine Demodulation und eine Decodierung sowie eine erneute Modulation und Codierung gänzlich verzichtet wird. Nachteilig an dieser Übertragung ist jedoch, dass die gesamte Funkstrecke individuell aufgebaut werden muss, da die Datenrate im Hochfrequenzübertragungsabschnitt an die Datenrate in dem Abschnitt mit induktiver Übertragung angepasst werden muss.From the post-published patent application DE 10 2005 005 603.2 a data transmission device for wireless data transmission to a hearing aid is known, which includes a high-frequency receiving device for receiving a high-frequency, modulated signal of an external transmitting unit. A mixing device is used for mixing the high-frequency, modulated signal with a reference signal of similar high frequency, so that a modulated output signal can be generated whose carrier frequency is smaller by at least an order of magnitude and which is suitable for inductive transmission. Finally, the output signal to the hearing aid is transmitted inductively by a transmitting device. This converter method results in a minimum delay time over the entire radio link, as it is completely dispensed with a demodulation and decoding and a new modulation and coding. A disadvantage of this transmission, however, is that the entire radio link must be built individually, since the data rate in the high-frequency transmission section must be adapted to the data rate in the section with inductive transmission.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Übertragungsvorrichtung und ein entsprechendes Übertragungsverfahren vorzuschlagen, die geringere Entwicklungskosten mit sich bringen.The object of the present invention is thus to propose a transmission device and a corresponding transmission method, which entail lower development costs.

Erfindungsgemäß wird diese Aufgabe gelöst durch eine Übertragungsvorrichtung zum Übertragen von Audiodaten an ein Hörgerät mit einer Sendeeinrichtung zum Senden der Audiodaten in einem Bluetooth-Signal, einem Codierer, der in die Sendeeinrichtung integriert ist, zum Komprimieren der Audiodaten vor dem Senden und einer Relaisstation zum Wandeln des Bluetooth-Signals von der Sendeeinrichtung in ein Signal zur induktiven Übertragung an das Hörgerät, wobei in der Relaisstation bei der Wandlung keine Umcodierung durchgeführt wird, die Sende einrichtung entsprechend dem A2DP-Protokoll von Bluetooth sendet und der Codierer mit einer niedrigeren Abtastrate arbeitet als Standard-A2DP-Codierer.According to the invention, this object is achieved by a transmission device for transmitting audio data to a hearing device with a transmission device for transmitting the audio data in a Bluetooth signal, an encoder integrated in the transmission device, for compressing the audio data before transmission and a relay station for conversion the Bluetooth signal from the transmitting device in a signal for inductive transmission to the hearing aid, wherein in the relay station during the conversion no transcoding is performed, the send device according to the A2DP protocol of Bluetooth sends and the encoder operates at a lower sampling rate than standard A2DP coder.

Dementsprechend wird erfindungsgemäß auch vorgeschlagen ein Verfahren zum Übertragen von Audiodaten an ein Hörgerät durch Codieren der Audiodaten, Senden der Audiodaten an eine Relaisstation in einem Bluetooth-Signal und Wandeln des Bluetooth-Signals in ein Signal zur induktiven Übertragung an das Hörgerät, wobei bei der Wandlung keine Umcodierung durchgeführt wird, das Senden entsprechend dem A2DP-Protokoll von Bluetooth erfolgt und das Codieren mit einer niedrigeren Abtastrate weil Hörgerätetaktrate durchgeführt wird als bei einem Standard-A2DP-Codierer.Accordingly, the invention also proposes a method for transmitting audio data to a hearing aid by encoding the audio data, transmitting the audio data to a relay station in a Bluetooth signal and converting the Bluetooth signal into a signal for inductive transmission to the hearing aid, wherein in the conversion no transcoding is performed, the transmission is made in accordance with the A2DP protocol of Bluetooth, and the encoding is performed at a lower sampling rate because hearing aid clock rate is performed than with a standard A2DP encoder.

In vorteilhafter Weise kann somit auf standardisierte Komponenten wie Bluetooth-Sender und Bluetooth-Empfänger sowie das entsprechende Bluetooth-Übertragungsprotokoll zurückgegriffen werden. Die standardisierten Komponenten des BT-Übertragungssystems sind auf Audioanwendungen zugeschnitten (z. B. Fehlerschutz).Advantageously, standardized components such as Bluetooth transmitters and Bluetooth receivers as well as the corresponding Bluetooth transmission protocol can thus be used. The standardized components of the BT transmission system are tailored to audio applications (eg error protection).

Die erfindungsgemäße Übertragung der Daten kann gegebenenfalls bidirektional erfolgen. Somit können auch Daten von dem Hörgerät über die teilweise standardisierte Übertragungsstrecke an ein externes Gerät übermittelt werden.The transmission of the data according to the invention may optionally be bidirectional. Thus, data from the hearing aid via the partially standardized transmission path can be transmitted to an external device.

Vorzugsweise ist die Relaisstation in eine Fernbedienung des Hörgeräts bzw. der Hörgeräte oder aber auch beispielsweise in eine Fernsehfernbedienung integriert. Damit muss der Nutzer nicht ein zusätzliches Gerät für die drahtlose Datenübermittlung benutzen.Preferably, the relay station is integrated into a remote control of the hearing device or the hearing aids or else, for example, in a television remote control. This does not require the user to use an additional device for wireless data transmission.

Günstigerweise ist die Audiobandbreite nach der Komprimierung durch den Codierer kleiner als 15 kHz. Insbesondere liegt die Audiobandbreite zwischen 8 und 12 kHz. Damit wird bereits sendeseitig der Audiodatenstrom so komprimiert, dass im Hörgerät keine nicht-verarbeitbaren Informationen ankommen.Conveniently, the audio bandwidth after compression by the encoder is less than 15 kHz. In particular, the audio bandwidth is between 8 and 12 kHz. Thus, the audio data stream is already compressed at the transmitting end so that no non-processable information arrives in the hearing aid.

Ferner ist es vorteilhaft, wenn die Datenrate in dem Bluetooth-Signal unter 150 kBit/s liegt. Hierdurch muss keine spezielle Komprimierung für die induktive Übertragung im Basisband erfolgen.Furthermore, it is advantageous if the data rate in the Bluetooth signal is below 150 kbit / s. This requires no special compression for the inductive transmission in the baseband.

Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnungen näher erläutert, in denen zeigen:

FIG 1
ein Übertragungssystem mit einer Relaisstation zum Decodieren und erneuten Codieren und
FIG 2
ein erfindungsgemäßes Übertragungssystem mit einer Relaisstation ohne Neucodierung.
The present invention will now be explained in more detail with reference to the accompanying drawings, in which:
FIG. 1
a transmission system with a relay station for decoding and re-encoding and
FIG. 2
an inventive transmission system with a relay station without recoding.

Das nachfolgend näher geschilderte Ausführungsbeispiel stellt eine bevorzugte Ausführungsform der vorliegenden Erfindung dar. Zunächst wird jedoch zum besseren Verständnis der Erfindung ein Übertragungssystem gemäß intern bekanntem Stand der Technik erläutert, das in FIG 1 schematisch wiedergegeben ist.The embodiment described in more detail below represents a preferred embodiment of the present invention. First, however, for a better understanding of the invention, a transmission system according to internally known prior art is explained, which is shown schematically in FIG.

Entsprechend dem System von FIG 1 soll ein Stereo-AudioSignal 1 von einem Fernsehgerät oder von einer HiFi-Anlage zu einem Hörgerät bzw. einem Hörgerätesystem für binaurale Versorgung übertragen werden. Die Audiosignale 1 werden in einem Bluetooth-Sender 3 abgetastet und codiert. Bei dieser Codierung werden die Daten komprimiert und blockweise zusammengefasst. Der Bluetooth-Sender 3 unterstützt mehrere Standard-Codierer, von denen ein Codierer 4 für die Übertragung wahlweise verwendet werden kann. In Bluetooth-A2DP-typischer Weise wird das Audiosignal 1 mit 44,1 oder 48 kHz abgetastet, so dass sich eine Audiobandbreite von 20 bis 24 kHz für das gesendete Signal ergibt. Die Datenrate r_bt beträgt typischerweise 230 bis 350 kBit/s. Die Standard-Bluetooth-Übertragungsstrecke 5 ermöglicht eine drahtlose Kommunikation mit einer Reichweite bis ca. 10 m.According to the system of FIG. 1, a stereo audio signal 1 is to be transmitted from a television set or from a hi-fi system to a hearing aid or a hearing aid system for binaural supply. The audio signals 1 are sampled in a Bluetooth transmitter 3 and encoded. In this encoding, the data is compressed and summarized in blocks. The Bluetooth transmitter 3 supports a plurality of standard encoders, of which an encoder 4 can be optionally used for transmission. In the Bluetooth A2DP-typical manner, the audio signal 1 is sampled at 44.1 or 48 kHz, resulting in an audio bandwidth of 20 to 24 kHz for the transmitted signal. The data rate r_bt is typically 230 to 350 kbit / s. The standard Bluetooth transmission link 5 enables wireless communication with a range of up to approx. 10 m.

In einer Fernbedienung 6 ist ein Standard-Bluetooth-Empfänger mit einem passenden Bluetooth-Decodierer 7 angeordnet, um die auf der Bluetooth-Übertragungsstrecke 5 codierten Audiodaten zu decodieren. Für die anschließende induktive Übertragung zu dem Hörgerätesystem 2 muss die Datenrate auf den Wert r_hg reduziert werden. Daher ist in der Fernbedienung 6 ein Hörgerätecodierer 8 vorgesehen, der die Datenrate entsprechend herabsetzt und eine Audiobandbreite von 8 bis 10 kHz liefert. Derart codiert werden die Daten über die induktive Übertragungsstrecke 9 zu dem Hörgerätesystem 2 geschickt. Jedes Hörgerät des Hörgerätesystems 2 besitzt einen entsprechenden Hörgeräte-Decoder 10, 11.In a remote control 6, a standard Bluetooth receiver with a matching Bluetooth decoder 7 is arranged to decode the encoded on the Bluetooth transmission link 5 audio data. For the subsequent inductive transmission to the hearing aid system 2, the data rate must be reduced to the value r_hg. Therefore, a hearing aid encoder 8 is provided in the remote control 6, which reduces the data rate accordingly and provides an audio bandwidth of 8 to 10 kHz. In this way, the data are sent via the inductive transmission link 9 to the hearing aid system 2. Each hearing aid of the hearing aid system 2 has a corresponding hearing aid decoder 10, 11.

Die höhere Distanz von einem Fernsehgerät oder einer HiFi-Anlage zu dem Hörgerät kann somit durch Verwendung eines Standard-Übertragungsverfahrens zu einer Hörgerätefernbedienung mit minimalem Aufwand und minimalen Kosten überbrückt werden. Als Standard-Übertragungsverfahren wird das Bluetooth-Verfahren verwendet, das den am weitesten verbreiteten Standard für kabellose Stereo-Audio-Übertragung innerhalb eines Hauses darstellt. Der "letzte Meter" von der Fernbedienung zum Hörgerät wird schließlich induktiv überbrückt.The greater distance from a television or hi-fi system to the hearing aid can thus be bridged by using a standard transmission method to a hearing aid remote with minimal effort and cost. The standard transmission method uses the Bluetooth method, which is the most widely used standard for wireless stereo audio transmission within a home. The "last meter" from the remote control to the hearing aid is finally bridged inductively.

Konkret wird das Audiosignal in der Bluetooth-Sendestation 3 digitalisiert und mittels des standardisierten Audioübertragungsprotokolls A2DP zur Relaisstation, nämlich der Fernbedienung 6, übertragen. Dieses Standardprotokoll schreibt die Unterstützung eines lizenzlosen Codecs, nämlich SBC, vor. Daneben können auch andere definierte Codecs, z. B. MP3, verwendet werden, die sich für den TV-Betrieb jedoch nicht eignen (aufgrund der hohen algorithmischen Verzögerung). Außerdem bietet der Standard die Möglichkeit, einen herstellerabhängigen Codec zu definieren/verwenden.Specifically, the audio signal is digitized in the Bluetooth transmitting station 3 and transmitted to the relay station, namely the remote control 6, by means of the standardized audio transmission protocol A2DP. This standard protocol requires the support of a license-free codec, SBC. In addition, other defined codecs, z. As MP3, but are not suitable for TV operation (due to the high algorithmic delay). In addition, the standard offers the possibility to define / use a manufacturer-dependent codec.

Wie oben bereits erwähnt, werden auf der Bluetooth-Strecke 5 standardgemäß vergleichsweise hohe Datenmengen übertragen. Bei SBC beträgt die Datenrate r_bt = 230 bis 350 kBit/s. Die Übertragung zu den Hörgeräten soll jedoch mit möglichst kleinen Komponenten und möglichst Strom sparend erfolgen. Daher ist hier die induktive Übertragungsstrecke 9 gewählt, bei der jedoch die Datenübertragungsrate reduziert werden muss, um die Effizienz zu erhöhen und entsprechende Stromeinsparung zu ermöglichen. Die Datenreduktion erfolgt durch die Umcodierung des Bluetooth-A2DP-Datenstroms in der Relaisstation bzw. Fernbedienung 6 auf einen Hörgerätedatenstrom.As mentioned above, comparatively large amounts of data are transmitted on the Bluetooth link 5 by default. For SBC the data rate r_bt = 230 to 350 kBit / s. The Transmission to the hearing aids, however, should be done with the smallest possible components and power saving as possible. Therefore, here the inductive transmission path 9 is selected, in which, however, the data transmission rate must be reduced in order to increase the efficiency and to allow corresponding power savings. The data reduction takes place by the transcoding of the Bluetooth A2DP data stream in the relay station or remote control 6 to a hearing aid data stream.

Die in FIG 1 abgebildete Lösung für die drahtlose Funkübertragungsstrecke besitzt jedoch einige Nachteile. Zum einen ist die standardgemäße Bluetooth-Datenübertragung mit hoher Bandbreite für den Betrieb mit einem Hörgerät ineffizient. Der Grund hierfür liegt darin, dass Hörgeräte aufgrund unterschiedlicher Qualitätsanforderungen üblicherweise mit niedrigerer Audiobandbreite (ungefähr 8 bis 10 kHz) als Audioanwendungen für Normalhörende (größer 20 kHz) betrieben werden. Darüber hinaus führt die Umcodierung in der Relaisstation zu einer reduzierten Audioqualität und erzeugt einen erhöhten Stromverbrauch, wodurch die Standzeit der Relaisstation reduziert wird. Ein weiterer Nachteil besteht darin, dass die Verzögerungszeit der Sprache und Musik vom Fernsehgerät zum Hörgerät aufgrund der doppelten Codierungsverzögerung (lange Audioblöcke auf der Bluetooth-Strecke) und der Verarbeitungsverzögerungen der Fernbedienung erhöht wird. Dies ist insofern kritisch zu werten, als dass für die Audioübertragung vom Fernseher zum Hörgerät eine Synchronität zu den Bildern zu gewährleisten ist und es durch die Überlagerung von Direktschall vom Fernseher mit übertragenem Audiosignal zu einer unerwünschten Färbung bzw. Halligkeit des Musik- oder Sprachsignals kommt.However, the solution for the wireless radio transmission path shown in FIG. 1 has some disadvantages. First, the standard high-bandwidth Bluetooth data transmission is inefficient for operation with a hearing aid. The reason for this is that because of different quality requirements, hearing aids are usually operated with lower audio bandwidth (approximately 8 to 10 kHz) than audio applications for normal hearing (greater than 20 kHz). In addition, the transcoding in the relay station leads to a reduced audio quality and generates an increased power consumption, whereby the service life of the relay station is reduced. Another disadvantage is that the delay time of the voice and music from the television to the hearing aid is increased due to the double coding delay (long audio blocks on the Bluetooth link) and the processing delays of the remote control. This is to be considered critical in that for the audio transmission from the television to the hearing aid to ensure synchronicity with the images and it comes to the superposition of direct sound from the television with transmitted audio signal to an unwanted coloring or reverberation of the music or speech signal.

Erfindungsgemäß wird daher das in FIG 2 prinzipiell dargestellte System verwendet. In einer Sendestation 13 wird das TV- oder HiFi-Signal 1 mithilfe eines Hörgerätecodierers 14 in ein gewünschtes Hörgeräteformat überführt. Dies zeichnet sich durch die Audiobandbreite von 8 bis 10 kHz aus. Außerdem wird das Signal durch den Hörgerätecodierer 14 so codiert, dass sich eine für die anschließende induktive Übertragungsstrecke geeignete Datenrate r_hg ergibt. Dies wird durch eine entsprechende Blocklänge der Datenblöcke realisiert.Therefore, according to the invention, the system shown in principle in FIG. 2 is used. In a transmitting station 13, the TV or hi-fi signal 1 is converted into a desired hearing aid format by means of a hearing device encoder 14. This is characterized by the audio bandwidth of 8 to 10 kHz. In addition, the signal is encoded by the hearing aid encoder 14, that results in a data rate r_hg suitable for the subsequent inductive transmission path. This is realized by a corresponding block length of the data blocks.

Der Hörgerätecodierer 14, mit dem das Stereo-Signal nach einer Digitalisierung mit Hörgeräteabtastrate komprimiert wird, fungiert als standardkonforme Alternative in der A2DP-Anwendung von Bluetooth zu dem SBC-Codierer. Der SBC kann im Sender ebenfalls unterstützt werden, wird jedoch für die Hörgeräteanwendung nicht verwendet. Der restliche Teil der physikalischen Übertragung per A2DP-Protokoll von Bluetooth kann unverändert für die Bluetooth-Übertragungsstrecke 15 eingesetzt werden.The hearing aid encoder 14, which compresses the stereo signal after digitization with hearing aid sampling rate, functions as a standard compliant alternative in the Bluetooth A2DP application to the SBC encoder. The SBC can also be supported in the transmitter, but is not used for the hearing aid application. The remaining part of the physical transmission via Bluetooth A2DP protocol can be used unchanged for the Bluetooth transmission link 15.

In der Fernbedienung 16 wird der Bluetooth-Datenstrom im Hörgeräteformat mit einem Standard-Bluetooth-Empfänger empfangen und kann ohne Umcodierung oder digitaler Abtastratenumwandlung an einen induktiven Sender der Fernbedienung 16 weitergeleitet werden. Der Bluetooth-Empfänger und der induktive Sender sind daher in FIG 2 als Bypass 17 symbolisiert. Die restliche Datenübertragungsstrecke, nämlich die induktive Übertragungsstrecke 9 sowie das Hörgerätesystem 2 mit den Hörgerätecodierern 10 und 11 entspricht denen von FIG 1. Bei der gesamten Übertragung gemäß FIG 2 entspricht somit die Nutzdatenrate und Taktrate auf der Bluetooth-Strecke 15 der auf der induktiven Übertragungsstrecke 9, d. h. r_bt = r_hg.In the remote control 16 the Bluetooth data stream is received in the hearing aid format with a standard Bluetooth receiver and can be forwarded without recoding or digital sample rate conversion to an inductive transmitter of the remote control 16. The Bluetooth receiver and the inductive transmitter are therefore symbolized in FIG. 2 as a bypass 17. The remaining data transmission path, namely the inductive transmission path 9 and the hearing aid system 2 with the hearing aid encoders 10 and 11 corresponds to those of FIG. 1. In the entire transmission according to FIG. 2, the useful data rate and clock rate on the Bluetooth path 15 correspond to those on the inductive transmission path 9 , d. H. r_bt = r_hg.

Aufgrund der Verwendung des Bluetooth-Standards kann der größte Teil der Übertragungsstrecke zum Hörgeräteträger einfach und entwicklungsarm und kostengünstig realisiert werden. Der "letzte Meter" zum Hörgerät erfolgt mittels der induktiven Strecke 9 besonders energiesparend. Die Verlagerung des Hörgerätecodierers und die Abtastung auf Hörgerätetakt in der Bluetooth-Sendestation 13 bringt folgende Vorteile:

  1. a) Die Effizienz in der Sendestation und in der Fernbedienung kann gesteigert werden. Die Bluetooth-Übertragung per A2DP-Protokoll kann nämlich mit deutlich geringerer Datenrate als in der Standard-Anwendung mit SBC durchgeführt werden. Dadurch wird der Stromverbrauch in der Sende- und Relaisstation absinken. Außerdem entfällt die aufwändige Umcodierung in der Fernbedienung, was zur weiteren Stromersparnis führt. Daher kann insbesondere bei der Relaisstation eine längere Akkulaufzeit bzw. ein seltenerer Wechsel der Batterien erreicht werden.
  2. b) Da sowohl Bluetooth-Codec (Codierung/Decodierung) wie auch Hörgeräte-Codec verlustbehaftete Transformationen darstellen, steigert sich die Audioqualität des Gesamtsignals, da im erfindungsgemäßen System gemäß FIG 2 nur einmal codiert/decodiert werden muss.
  3. c) Ein wichtiges Qualitätsmerkmal des Gesamtsystems ist die Verzögerung des Audiosignals durch die Übertragung. Zum einen überlagert sich in der TV-Anwendung Direktschall vom Fernsehgerät mit dem per Funk übertragenen Signal am Ohr des Hörgeräteträgers und führt zu störender Färbung bzw. Halligkeit. Zum anderen muss die Synchronität des Bilds zum Ton gewährleistet sein. Mit dem erfindungsgemäßen Verfahren wird die Verzögerungszeit durch Elimination einer Codierungsverzögerung und einer Verarbeitungsverzögerung in der Fernbedienung minimiert.
Due to the use of the Bluetooth standard, most of the transmission link to the hearing aid wearer can be realized in a simple and low-development manner and cost-effectively. The "last meter" to the hearing aid by means of the inductive track 9 is particularly energy-efficient. The displacement of the hearing device coder and the hearing aid clock scan in the Bluetooth transmitting station 13 have the following advantages:
  1. a) The efficiency in the transmitting station and in the remote control can be increased. The Bluetooth transmission via A2DP protocol can namely with significantly lower data rate be performed in the standard application with SBC. As a result, the power consumption in the transmitting and relay station will decrease. In addition, eliminates the time-consuming transcoding in the remote control, which leads to further power savings. Therefore, a longer battery life or a less frequent change of batteries can be achieved in particular at the relay station.
  2. b) Since both Bluetooth codec (coding / decoding) as well as hearing aid codec represent lossy transformations, the audio quality of the overall signal increases, since in the inventive system according to FIG 2 only once must be coded / decoded.
  3. c) An important quality feature of the overall system is the delay of the audio signal through the transmission. On the one hand, in the TV application, direct sound from the television is superimposed on the signal transmitted by radio at the ear of the hearing device wearer and leads to disturbing coloring or reverberation. On the other hand, the synchronicity of the image to the sound must be ensured. With the method according to the invention, the delay time is minimized by eliminating a coding delay and a processing delay in the remote control.

Claims (10)

Übertragungsvorrichtung zum Übertragen von Audiodaten an ein Hörgerät (2) mit - einer Sendeeinrichtung (13) zum Senden der Audiodaten in einem Bluetooth-Signal, - einem Codierer (14), der in die Sendeeinrichtung (13) integriert ist, zum Komprimieren der Audiodaten vor dem Senden und - einer Relaisstation (16) zum Wandeln des Bluetooth-Signals von der Sendeeinrichtung (13) in ein Signal zur induktiven Übertragung an das Hörgerät (2), dadurch gekennzeichnet, dass - in der Relaisstation (16) bei der Wandlung keine Umcodierung durchgeführt wird, - die Sendeeinrichtung (13) entsprechend dem A2DP-Protokoll von Bluetooth sendet und - der Codierer (14) mit einer niedrigeren Abtastrate arbeitet als Standard-A2DP-Codierer. Transmission device for transmitting audio data to a hearing aid (2) a transmitting device (13) for transmitting the audio data in a Bluetooth signal, - an encoder (14), which is integrated in the transmitting device (13), for compressing the audio data before sending and a relay station (16) for converting the Bluetooth signal from the transmitting device (13) into a signal for inductive transmission to the hearing device (2), characterized in that in the relay station (16) no conversion is carried out during the conversion, - Sends the transmitting device (13) according to the A2DP protocol of Bluetooth and The encoder (14) with a lower sampling rate works as a standard A2DP encoder. Übertragungsvorrichtung nach Anspruch 1, wobei das Übertragen von Daten bidirektional durchführbar ist.Transmission device according to claim 1, wherein the transmission of data is bidirectionally feasible. Übertragungsvorrichtung nach Anspruch 1 oder 2, wobei die Relaisstation (16) in eine Fernbedienung integriert ist.Transmission device according to claim 1 or 2, wherein the relay station (16) is integrated in a remote control. Übertragungsvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Audiobandbreite nach der Komprimierung durch den Codierer (14) kleiner 15 kHz ist.Transmission device according to one of the preceding claims, wherein the audio bandwidth after compression by the encoder (14) is less than 15 kHz. Übertragungsvorrichtung nach Anspruch 4, wobei die Audiobandbreite zwischen 8 und 12 kHz liegt.Transmission device according to claim 4, wherein the audio bandwidth is between 8 and 12 kHz. Übertragungsvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Datenrate in dem Bluetooth-Signal unter 150 kBit/s liegt.Transmission device according to one of the preceding claims, wherein the data rate in the Bluetooth signal is below 150 kbit / s. Verfahren zum Übertragen von Audiodaten an ein Hörgerät (2) mit - Codieren der Audiodaten, - Senden der Audiodaten an eine Relaisstation (16) in einem Bluetooth-Signal, - Wandeln des Bluetooth-Signals in ein Signal zur induktiven Übertragung an das Hörgerät (2), dadurch gekennzeichnet, dass - bei der Wandlung keine Umcodierung durchgeführt wird, - das Senden entsprechend dem A2DP-Protokoll von Bluetooth erfolgt und - das Codieren mit einer niedrigeren Abtastrate durchgeführt wird als bei einem Standard-A2DP-Codierer. Method for transmitting audio data to a hearing aid (2) - encoding the audio data, Sending the audio data to a relay station (16) in a Bluetooth signal, Converting the Bluetooth signal into a signal for inductive transmission to the hearing aid (2), characterized in that - no conversion is performed during the conversion, - The transmission is done according to the A2DP protocol of Bluetooth and the encoding is performed at a lower sampling rate than in a standard A2DP encoder. Verfahren nach Anspruch 7, wobei das Übertragen von Daten bidirektional durchführbar ist.Method according to claim 7, wherein the transmission of data is bidirectional. Verfahren nach Anspruch 7 oder 8, wobei die Audiobandbreite nach der Codierung kleiner als 15 kHz ist.The method of claim 7 or 8, wherein the audio bandwidth after encoding is less than 15 kHz. Verfahren nach einem der Ansprüche 7 bis 9, wobei die Datenrate in dem Bluetooth-Signal unter 150 kBit/s liegt.The method of any one of claims 7 to 9, wherein the data rate in the Bluetooth signal is less than 150 kbps.
EP07108797.7A 2006-06-26 2007-05-24 Bluetooth transmission device for hearing aids and corresponding transmission method Active EP1874088B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108271144A (en) * 2018-03-23 2018-07-10 杜宁 It is a kind of that blue-tooth device and the system that data double-way mutually passes are carried out with terminal

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217038B (en) * 2008-01-17 2011-06-22 中兴通讯股份有限公司 An encoding method of audio data SBC algorithm and Bluetooth stereo subsystem
DE102008019107A1 (en) 2008-04-16 2009-10-29 Siemens Medical Instruments Pte. Ltd. Measuring device for measuring input and output characteristics of hearing device, has measuring chamber for holding hearing device, where high-frequency transmission module is provided for transmitting measuring signal
DE102008050351A1 (en) 2008-10-02 2010-04-08 Siemens Medical Instruments Pte. Ltd. System for transmitting audio data to hearing aid, has transmitter unit for emitting radio signal with audio data, where delay unit is provided for delaying audio data released by acoustic waves by predetermined delay value
JP5342720B2 (en) * 2009-03-24 2013-11-13 パナソニック株式会社 Audio image reproduction system, hearing aid, audio image processing apparatus
DE102014204557A1 (en) * 2014-03-12 2015-09-17 Siemens Medical Instruments Pte. Ltd. Transmission of a wind-reduced signal with reduced latency
CN106792466B (en) * 2016-12-26 2020-10-09 歌尔科技有限公司 Method for communication between equipment end and host end
CN108738006B (en) * 2018-05-31 2021-06-25 出门问问信息科技有限公司 Data transmission method and device based on Bluetooth
CN108966197A (en) * 2018-08-20 2018-12-07 南昌黑鲨科技有限公司 Audio frequency transmission method, system, audio-frequence player device and computer readable storage medium based on bluetooth
CN111050306A (en) * 2018-10-15 2020-04-21 北京轩辕联科技有限公司 Extended connection method and extended connection system for Bluetooth device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060039577A1 (en) 2004-08-18 2006-02-23 Jorge Sanguino Method and apparatus for wireless communication using an inductive interface
DE102005005603A1 (en) 2005-02-07 2006-08-17 Siemens Audiologische Technik Gmbh Data transmission device for wireless data transmission for hearing aids and corresponding method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6208740B1 (en) * 1997-02-28 2001-03-27 Karl Grever Stereophonic magnetic induction sound system
US6690657B1 (en) * 2000-02-25 2004-02-10 Berkeley Concept Research Corporation Multichannel distributed wireless repeater network
AT411950B (en) * 2001-04-27 2004-07-26 Ribic Gmbh Dr METHOD FOR CONTROLLING A HEARING AID
JPWO2003013068A1 (en) * 2001-07-30 2004-11-25 ソニー株式会社 Wireless communication system, wireless communication control device, wireless communication control method, storage medium, and computer program
FR2829650B1 (en) * 2001-09-13 2004-07-09 Cit Alcatel INTER-NETWORK GATEWAY FOR DIGITAL SIGNAL TRANSMISSION
US20030114103A1 (en) * 2001-12-19 2003-06-19 Radio Frequency Systems, Inc. Repeater for use in a wireless communication system
DE10200796A1 (en) * 2002-01-11 2003-07-31 Reinhard Dagefoerde Accessory for hearing aid is short-range data radio receiver, especially Bluetooth receiver, whose output can be connected to audio connection of hearing aid
JP3754423B2 (en) * 2003-03-11 2006-03-15 株式会社東芝 Electronic equipment and programs
GB0406091D0 (en) * 2004-03-17 2004-04-21 Koninkl Philips Electronics Nv Radio repeater

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060039577A1 (en) 2004-08-18 2006-02-23 Jorge Sanguino Method and apparatus for wireless communication using an inductive interface
DE102005005603A1 (en) 2005-02-07 2006-08-17 Siemens Audiologische Technik Gmbh Data transmission device for wireless data transmission for hearing aids and corresponding method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ADVANCED AUDIO DISTRIBUTION PROFILE SPECIFICATION - ADOPTED VERSION 1.0, 22 May 2003 (2003-05-22), pages 1 - 75

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108271144A (en) * 2018-03-23 2018-07-10 杜宁 It is a kind of that blue-tooth device and the system that data double-way mutually passes are carried out with terminal
CN108271144B (en) * 2018-03-23 2023-12-19 杜宁 Bluetooth device and system for carrying out data bidirectional mutual transmission with terminal

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CN101098168A (en) 2008-01-02
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EP1874088B1 (en) 2015-07-08
EP1874088A3 (en) 2011-05-25

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