EP1689209A2 - Data transmitting apparatus for wireless data transmission for hearing-aid and corresponding method - Google Patents
Data transmitting apparatus for wireless data transmission for hearing-aid and corresponding method Download PDFInfo
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- EP1689209A2 EP1689209A2 EP06100764A EP06100764A EP1689209A2 EP 1689209 A2 EP1689209 A2 EP 1689209A2 EP 06100764 A EP06100764 A EP 06100764A EP 06100764 A EP06100764 A EP 06100764A EP 1689209 A2 EP1689209 A2 EP 1689209A2
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 9
- 230000001939 inductive effect Effects 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000000613 ear canal Anatomy 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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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
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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
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
- H04R25/353—Frequency, e.g. frequency shift or compression
Definitions
- the present invention relates to a data transmission device for wireless data transmission to a hearing device with a high-frequency receiving device for receiving high-frequency signals of an external transmitting unit. Moreover, the present invention relates to a corresponding method for wireless data transmission.
- data is used here primarily for coded audio signals and speech signals.
- radio frequency (RF) radio field transmission In principle, there are two ways of wirelessly transmitting digital signals to a hearing aid: radio frequency (RF) radio field transmission and inductive near field transmission. Both variants have advantages and disadvantages.
- the RF transmission is usually in the range of 800 to 1000 MHz, while the inductive transmission is in the range of 1 to 30 MHz.
- the range for hearing aid applications is approximately 10 m for RF transmission, while it is only 1 m for inductive transmission.
- a particular disadvantage of the RF transmission is that the absorption of the electromagnetic signals in the body, the dimensions for the antenna and the current consumption of the receiver are large.
- in inductive transmission signals the absorption in the body is small, and the dimensions of an induction coil for transmission and the power consumption of the receiver are small.
- the size of the components and the high current consumption mean that the RF transmission is only applicable in large hearing aids (BTE).
- BTE large hearing aids
- the range is sufficient for typical applications.
- the inductive transmission could be realized in the smallest hearing aids in the ear canal (CICs), but has a limited range. So far so From the sender's point of view, two systems for radio transmission are required to cover all hearing aid designs.
- the problem of range in inductive transmission could be solved by using a converter.
- the closest realization of the converter involves the demodulation of the received RF signal and the re-modulation for transmission over the inductive radio link. This means a relatively large amount of circuitry for the converter unit, but also a loss of time during transmission.
- Such a device is known for example from the company GN ReSound. It is used to receive Bluetooth signals and to convert them into analogue signals which are transmitted by means of an induction coil to a hearing system or its telecoil. It is necessary to demodulate and decode the signals according to the Bluetooth standard in order to then convert them into analog signals.
- US Pat. No. 4,920,570 discloses a modular monitoring system. Each input module transmits the signals either in analog or digital form to a switching module. Optionally, high-frequency, ultrasonic, infrared or inductive transmission can be selected.
- US Pat. No. 5,721,783 describes a hearing aid located in the ear canal with an external processor unit. A bidirectional connection between both units is established by microwave or radar wave.
- the publication DE 100 15 421 C2 describes a hearing system which has an external transmission unit and an implanted receiving device.
- the transmission unit to be worn near the ear at the head comprises an RF transmitter / receiver for receiving and demodulating a signal of a telecommunication network and a bidirectional telemetry interface for inductive transmission to the implanted receiver. In this way, a data transmission between the telecommunications network, the transmission unit and the implanted receiving device take place.
- the object of the present invention is to be able to achieve wireless transmission of high range in a simple manner, even in very small devices.
- a data transmission device for wireless data transmission to a hearing device having a high-frequency receiving device for receiving a high-frequency modulated signal of an external transmitting unit, a mixer device for mixing the high-frequency modulated signal with a reference signal of similar high frequency, so that a modulated output signal can be generated is, whose carrier frequency is lower by at least an order of magnitude and which is suitable for inductive transmission, and a transmitting device for inductive transmission of the output signal to the hearing aid.
- the general principle of mixing signals is known from "Nachzinyer Karl Dirk, Teubern Verlag 1992, especially page 264.
- a method for wireless data transmission to a hearing device by receiving a high-frequency, modulated signal of an external transmitter unit, mixing the high-frequency modulated signal with a reference signal of similar high frequency, so that a modulated output signal is generated whose carrier frequency is at least one order of magnitude is lower and which is suitable for inductive transmission, and inductive transmission of the output signal to the hearing aid.
- the advantage of the data transmission device according to the invention or of the method according to the invention for wireless data transmission is that it can be realized with very simple means. In addition, this makes it possible to use a single transmitter type digital data transmission for all hearing aid designs. Also, the IdOs small design are now accessible via the relay station according to the invention over long distances by radio. Furthermore, the proposed converter method results in a minimum delay time over the entire radio path, since a demodulation and a decoding as well as a new modulation and coding is completely dispensed with. This point is especially for the audio transmission z. B. important in television.
- the high-frequency signal has a frequency above 800 MHz and the output signal has a frequency below 30 MHz. This allows RF transmission on the input side and inductive transmission on the output side.
- the radio-frequency receiving device consists exclusively of an antenna, a filter and an amplifier.
- the transmitting device should consist exclusively of a filter, a power amplifier and a transmitting coil. This makes it possible to design the entire data transmission device or converter unit with very simple means.
- the type of modulation in the high-frequency received signal and in the output signal is identical. As a result, no time losses occur during demodulation and remodulation.
- the type of coding in the high-frequency received signal and in the output signal should also be identical. This results in time advantages through the elimination of decoding and recoding. In other words, the coding of the digital input signal remains unchanged, resulting in a digital output signal with the same coding.
- a data transmission device consists, for example, of an antenna A which serves as a reception antenna for HF signals.
- the antenna A receives an input signal of the frequency 863 MHz.
- the antenna A is followed by a filter F1.
- the filtered input signal is fed via an amplifier V to a mixer M.
- the mixer M the amplified input signal is mixed with a predetermined AC voltage of an oscillator O.
- the oscillator voltage in the present case has a frequency of 866.1 MHz.
- the mixing results in a spectral component with difference frequency, which is why at the output of the mixer in the present Case gives a frequency of 3.1 MHz.
- the output signal of the mixer M is in turn filtered in a filter F2 and fed to a power amplifier LV.
- the output signal of the power amplifier LV is then fed into a transmitting coil S, which transmits it by inductive transmission to a telecoil of a hearing aid.
- the high-frequency signal of over 800 MHz is down-mixed to an intermediate frequency below 30 MHz, so that the resulting signal is at the desired carrier frequency for the inductive transmission.
- the output signal of the converter also remains digital. In this case, therefore, the digital output signal of the converter is inductively transmitted to the hearing aid.
- a transmitting unit SE transmits an analog or digital signal directly to a large hearing aid (BTE) via RF transmission, for example over a distance of 10 m.
- BTE hearing aid
- the relatively large RF receiver can each be accommodated in a BTE. No converter unit is necessary for the transmission.
- the same transmission unit SE can now also be used to supply smaller hearing aids (IdOs) at a distance of 10 m.
- the transmitting unit SE initially transmits the message by RF transmission to a converter U.
- a converter U This is configured in accordance with the block diagram of FIG. With it, an inductive output signal is generated, which has a range of approximately 1.5 m, and is recorded by the IdOs.
- the IdOs have corresponding inductive receivers.
- the converter unit U preferably carries the hearing aid wearer on the body. This allows the IdOs always with radio signals be supplied, the source is out of range of inductive transmission.
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Abstract
Auch IdOs sollen auf einfache Weise über weitere Funkstrecken erreichbar sein. Daher wird eine Umsetzereinheit mit einer Hochfrequenzempfangseinrichtung (A, F1, V) zum Empfangen von hochfrequenten Signalen einer externen Sendeeinheit vorgeschlagen, die ferner eine Mischereinheit (M) zum Mischen des hochfrequenten Signals mit einem Referenzsignal ähnlich hoher Frequenz aufweist, so dass ein Ausgangssignal erzeugbar ist, dessen Frequenz um mindestens eine Größenordnung geringer ist und das sich zur induktiven Übertragung eignet. Als Ausgang ist in dem Umsetzer eine Sendeeinrichtung (F2, LV, S) zur induktiven Übertragung des Ausgangssignals an ein Hörgerät vorgesehen.
Description
Die vorliegende Erfindung betrifft eine Datenübertragungsvorrichtung zur drahtlosen Datenübertragung an ein Hörgerät mit einer Hochfrequenzempfangseinrichtung zum Empfangen von hochfrequenten Signalen einer externen Sendeeinheit. Darüber hinaus betrifft die vorliegende Erfindung ein entsprechendes Verfahren zur drahtlosen Datenübertragung. Der Begriff "Daten" wird hier in erster Linie für codierte Audiosignale und Sprachsignale verwendet.The present invention relates to a data transmission device for wireless data transmission to a hearing device with a high-frequency receiving device for receiving high-frequency signals of an external transmitting unit. Moreover, the present invention relates to a corresponding method for wireless data transmission. The term "data" is used here primarily for coded audio signals and speech signals.
Prinzipiell bestehen zwei Möglichkeiten, digitale Signale drahtlos in ein Hörgerät zu übertragen: Die Hochfrequenz (HF)-Fernfeldübertragung und die induktive Nahfeldübertragung. Beide Varianten haben Vor- und Nachteile. Die HF-Übertragung erfolgt üblicherweise im Bereich von 800 bis 1000 MHz, während die induktive Übertragung im Bereich von 1 bis 30 MHz erfolgt. Die Reichweite für Hörgeräte-Anwendungen liegt bei der HF-Übertragung bei ca. 10 m, während sie bei der induktiven Übertragung lediglich bei 1 m liegt. Besonders nachteilig an der HF-Übertragung ist, dass die Absorption der elektromagnetischen Signale im Körper, die Abmessungen für die Antenne und die Stromaufnahme des Empfängers groß sind. Demgegenüber ist bei Signalen für die induktive Übertragung die Absorption im Körper gering, und die Abmessungen einer Induktionsspule für die Übertragung sowie die Stromaufnahme des Empfängers sind klein.In principle, there are two ways of wirelessly transmitting digital signals to a hearing aid: radio frequency (RF) radio field transmission and inductive near field transmission. Both variants have advantages and disadvantages. The RF transmission is usually in the range of 800 to 1000 MHz, while the inductive transmission is in the range of 1 to 30 MHz. The range for hearing aid applications is approximately 10 m for RF transmission, while it is only 1 m for inductive transmission. A particular disadvantage of the RF transmission is that the absorption of the electromagnetic signals in the body, the dimensions for the antenna and the current consumption of the receiver are large. On the other hand, in inductive transmission signals, the absorption in the body is small, and the dimensions of an induction coil for transmission and the power consumption of the receiver are small.
Die Größe der Bauteile und die hohe Stromaufnahme führen dazu, dass die HF-Übertragung nur in großen Hörgeräten (HdOs) anwendbar ist. Dafür ist die Reichweite ausreichend für typische Anwendungen. Die induktive Übertragung ließe sich auch in den kleinsten Hörgeräten im Ohrkanal (CICs) realisieren, hat dafür aber eine beschränkte Reichweite. Bislang sind also aus Sicht des Senders zwei Systeme für eine Funkübertragung notwendig, um alle Hörgeräte-Bauformen abzudecken.The size of the components and the high current consumption mean that the RF transmission is only applicable in large hearing aids (BTE). The range is sufficient for typical applications. The inductive transmission could be realized in the smallest hearing aids in the ear canal (CICs), but has a limited range. So far so From the sender's point of view, two systems for radio transmission are required to cover all hearing aid designs.
Das Problem der Reichweite bei induktiver Übertragung ließe sich durch Einsatz eines Umsetzers lösen. Die nächstliegende Realisierung des Umsetzers beinhaltet die Demodulation des empfangenen HF-Signals und die erneute Modulation zur Übertragung über die induktive Funkstrecke. Dies bedeutet einen relativ großen Schaltungsaufwand für die Umsetzereinheit, aber auch einen Zeitverlust bei der Übertragung. Ein derartiges Gerät ist beispielsweise von der Firma GN ReSound bekannt. Es dient zum Empfang von Bluetooth-Signalen und zur Umsetzung in analoge Signale, die mit Hilfe einer Induktionsspule an ein Hörsystem bzw. dessen Telefonspule übertragen werden. Dabei ist es notwendig, die entsprechend dem Bluetooth-Standard vorliegenden Signale zu demodulieren und zu decodieren, um sie anschließend in analoge Signale zu wandeln.The problem of range in inductive transmission could be solved by using a converter. The closest realization of the converter involves the demodulation of the received RF signal and the re-modulation for transmission over the inductive radio link. This means a relatively large amount of circuitry for the converter unit, but also a loss of time during transmission. Such a device is known for example from the company GN ReSound. It is used to receive Bluetooth signals and to convert them into analogue signals which are transmitted by means of an induction coil to a hearing system or its telecoil. It is necessary to demodulate and decode the signals according to the Bluetooth standard in order to then convert them into analog signals.
Darüber hinaus sind auf dem Markt bislang nur Lösungen zur Übertragung analoger Funksignale zum Hörgerät erhältlich. Dabei gibt es zwar Systeme mit externer Einheit, die auch digitale Funksignale empfangen, diese werden aber per analogem FM-Link zum HdO-Hörgerät übertragen. Das Hörgerät benötigt dann einen FM-Empfänger, der üblicherweise aufgesteckt wird.In addition, only solutions for the transmission of analog radio signals to the hearing aid available on the market so far. Although there are systems with external units, which also receive digital radio signals, but these are transmitted via analog FM link to the BTE hearing aid. The hearing aid then requires an FM receiver, which is usually plugged.
Aus der Druckschrift EP 1 460 769 A1 ist ferner ein mobiler Transceiver für Hörgeräte bekannt. Dabei werden die Signale mit einer anderen Frequenz abgestrahlt als sie empfangen wurden, um Interferenzen zu vermeiden.From the document EP 1 460 769 A1 a mobile transceiver for hearing aids is also known. The signals are emitted at a different frequency than they were received in order to avoid interference.
Weiterhin ist aus der Druckschrift US 4 920 570 ein modular aufgebautes Abhörsystem bekannt. Dabei überträgt jedes Eingangsmodul die Signale entweder in analoger oder digitaler Form zu einem Schaltmodul. Wahlweise kann Hochfrequenz-, Ultraschall-, Infrarot- oder induktive Übertragung gewählt werden.Furthermore, US Pat. No. 4,920,570 discloses a modular monitoring system. Each input module transmits the signals either in analog or digital form to a switching module. Optionally, high-frequency, ultrasonic, infrared or inductive transmission can be selected.
Ferner beschreibt das US-Patent 5 721 783 ein im Ohrkanal befindliches Hörgerät mit einer externen Prozessoreinheit. Eine bidirektionale Verbindung zwischen beiden Einheiten wird mittels Mikrowelle oder Radarwelle aufgebaut.Furthermore, US Pat. No. 5,721,783 describes a hearing aid located in the ear canal with an external processor unit. A bidirectional connection between both units is established by microwave or radar wave.
In der Druckschrift DE 100 15 421 C2 ist ein Hörsystem beschrieben, welches eine externe Übertragungseinheit und eine implantierte Empfangseinrichtung aufweist. Die in Ohrnähe am Kopf zu tragende Übertragungseinheit umfasst einen HF-Sender/Empfänger zum Empfangen und Demodulieren eines Signals eines Telekommunikationsnetzes und eine bidirektionale Telemetrieschnittstelle zur induktiven Übertragung an die implantierte Empfangseinrichtung. Auf diese Weise kann eine Datenübertragung zwischen dem Telekommunikationsnetz, der Übertragungseinheit und der implantierten Empfangseinrichtung stattfinden.The publication DE 100 15 421 C2 describes a hearing system which has an external transmission unit and an implanted receiving device. The transmission unit to be worn near the ear at the head comprises an RF transmitter / receiver for receiving and demodulating a signal of a telecommunication network and a bidirectional telemetry interface for inductive transmission to the implanted receiver. In this way, a data transmission between the telecommunications network, the transmission unit and the implanted receiving device take place.
Die Aufgabe der vorliegenden Erfindung besteht darin, auf einfache Weise auch bei sehr kleinen Geräten drahtlose Übertragung hoher Reichweite erzielen zu können.The object of the present invention is to be able to achieve wireless transmission of high range in a simple manner, even in very small devices.
Erfindungsgemäß wird diese Aufgabe gelöst durch eine Datenübertragungsvorrichtung zur drahtlosen Datenübertragung an ein Hörgerät mit einer Hochfrequenzempfangseinrichtung zum Empfangen eines hochfrequenten, modulierten Signals einer externen Sendeeinheit, einer Mischereinrichtung 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, und einer Sendeeinrichtung zur induktiven Übertragung des Ausgangssignals an das Hörgerät. Das allgemeine Prinzip des Mischens von Signalen ist aus "Nachrichtenübertragung", Kammeyer Karl Dirk, Teubern Verlag 1992, insbesondere Seite 264 bekannt.According to the invention, this object is achieved by a data transmission device for wireless data transmission to a hearing device having a high-frequency receiving device for receiving a high-frequency modulated signal of an external transmitting unit, a mixer device for mixing the high-frequency modulated signal with a reference signal of similar high frequency, so that a modulated output signal can be generated is, whose carrier frequency is lower by at least an order of magnitude and which is suitable for inductive transmission, and a transmitting device for inductive transmission of the output signal to the hearing aid. The general principle of mixing signals is known from "Nachrichtenübertragung", Kammeyer Karl Dirk, Teubern Verlag 1992, especially page 264.
Ebenfalls wird erfindungsgemäß bereitgestellt ein Verfahren zur drahtlosen Datenübertragung an ein Hörgerät durch Empfangen eines hochfrequenten, modulierten Signals einer externen Sendeeinheit, Mischen des hochfrequenten, modulierten Signals mit einem Referenzsignal ähnlich hoher Frequenz, so dass ein moduliertes Ausgangssignal erzeugt wird, dessen Trägerfrequenz um mindestens eine Größenordnung geringer ist und das sich zur induktiven Übertragung eignet, und induktives Übertragen des Ausgangssignals an das Hörgerät.Likewise provided according to the invention is a method for wireless data transmission to a hearing device by receiving a high-frequency, modulated signal of an external transmitter unit, mixing the high-frequency modulated signal with a reference signal of similar high frequency, so that a modulated output signal is generated whose carrier frequency is at least one order of magnitude is lower and which is suitable for inductive transmission, and inductive transmission of the output signal to the hearing aid.
Der Vorteil der erfindungsgemäßen Datenübertragungsvorrichtung bzw. des erfindungsgemäßen Verfahrens zur drahtlosen Datenübertragung liegt darin, dass sie/es mit sehr einfachen Mitteln realisiert werden kann. Darüber hinaus besteht hierdurch die Möglichkeit, mit einem einzigen Sendertyp digitale Datenübertragung für alle Hörgeräte-Bauformen zu ermöglichen. Auch die IdOs kleiner Bauform sind nun über die erfindungsgemäße Relaisstation über größere Entfernungen per Funk erreichbar. Weiter resultiert das vorgeschlagene Umsetzerverfahren in einer minimalen Verzögerungszeit über der gesamten Funkstrecke, da auf eine Demodulation und eine Decodierung sowie eine erneute Modulation und Codierung gänzlich verzichtet wird. Dieser Punkt ist besonders für die Audioübertragung z. B. beim Fernsehen wichtig.The advantage of the data transmission device according to the invention or of the method according to the invention for wireless data transmission is that it can be realized with very simple means. In addition, this makes it possible to use a single transmitter type digital data transmission for all hearing aid designs. Also, the IdOs small design are now accessible via the relay station according to the invention over long distances by radio. Furthermore, the proposed converter method results in a minimum delay time over the entire radio path, since a demodulation and a decoding as well as a new modulation and coding is completely dispensed with. This point is especially for the audio transmission z. B. important in television.
Vorzugsweise besitzt das hochfrequente Signal eine Frequenz oberhalb von 800 MHz und das Ausgangssignal eine Frequenz unter 30 MHz. Damit ist eingangsseitig HF-Übertragung und ausgangsseitig induktive Übertragung möglich.Preferably, the high-frequency signal has a frequency above 800 MHz and the output signal has a frequency below 30 MHz. This allows RF transmission on the input side and inductive transmission on the output side.
In einer besonders bevorzugten Ausführungsform besteht die Hochfrequenzempfangseinrichtung ausschließlich aus einer Antenne, einem Filter und einem Verstärker. Ebenso sollte die Sendeeinrichtung ausschließlich aus einem Filter, einem Leistungsverstärker und einer Sendespule bestehen. Damit lässt sich die gesamte Datenübertragungsvorrichtung bzw. Umsetzereinheit mit sehr einfachen Mitteln gestalten.In a particularly preferred embodiment, the radio-frequency receiving device consists exclusively of an antenna, a filter and an amplifier. Likewise, the transmitting device should consist exclusively of a filter, a power amplifier and a transmitting coil. This makes it possible to design the entire data transmission device or converter unit with very simple means.
Günstigerweise ist die Art der Modulation im hochfrequenten Empfangssignal und im Ausgangssignal identisch. Dadurch entstehen keine Zeitverluste bei einer Demodulation und einer Remodulation.Conveniently, the type of modulation in the high-frequency received signal and in the output signal is identical. As a result, no time losses occur during demodulation and remodulation.
Auch sollte die Art der Codierung im hochfrequenten Empfangssignal und im Ausgangssignal identisch sein. Hierdurch ergeben sich Zeitvorteile durch den Wegfall einer Decodierung und Recodierung. Mit anderen Worten, die Codierung des digitalen Eingangssignals bleibt unverändert, so dass sich ein digitales Ausgangssignal mit gleicher Codierung ergibt.The type of coding in the high-frequency received signal and in the output signal should also be identical. This results in time advantages through the elimination of decoding and recoding. In other words, the coding of the digital input signal remains unchanged, resulting in a digital output signal with the same coding.
Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnungen näher erläutert, in denen zeigen:
- FIG 1
- ein Blockschaltbild eines erfindungsgemäßen Umsetzers und
- FIG 2
- eine schematische Funkstrecke für HdOs und IdOs.
- FIG. 1
- a block diagram of a converter according to the invention and
- FIG. 2
- a schematic radio link for BTEs and IDOs.
Die nachfolgend näher geschilderten Ausführungsformen stellen bevorzugte Ausführungsbeispiele der vorliegenden Erfindung dar.The embodiments described in more detail below represent preferred embodiments of the present invention.
Ein erfindungsgemäßer Umsetzer, d. h. eine erfindungsgemäße Datenübertragungsvorrichtung besteht gemäß FIG 1 beispielsweise aus einer Antenne A, die als Empfangs-Antenne für HF-Signale dient. Im vorliegenden Beispiel empfängt die Antenne A ein Eingangssignal der Frequenz 863 MHz. Der Antenne A ist eine Filter F1 nachgeschaltet. Das gefilterte Eingangssignal wird über einen Verstärker V einem Mischer M zugeführt. In dem Mischer M wird das verstärkte Eingangssignal mit einer vorgegebenen Wechselspannung eines Oszillators O gemischt. Die Oszillatorspannung hat im vorliegenden Fall eine Frequenz von 866,1 MHz.An inventive converter, d. H. According to FIG. 1, a data transmission device according to the invention consists, for example, of an antenna A which serves as a reception antenna for HF signals. In the present example, the antenna A receives an input signal of the
Das Mischen führt zu einem Spektralanteil mit Differenzfrequenz, weshalb sich am Ausgang des Mischers im vorliegenden Fall eine Frequenz von 3,1 MHz ergibt. Das Ausgangssignal des Mischers M wird wiederum in einem Filter F2 gefiltert und einem Leistungsverstärker LV zugeführt. Das Ausgangssignal des Leistungsverstärkers LV wird sodann in eine Sendespule S gespeist, die es per induktiver Übertragung an eine Telefonspule eines Hörgeräts überträgt.The mixing results in a spectral component with difference frequency, which is why at the output of the mixer in the present Case gives a frequency of 3.1 MHz. The output signal of the mixer M is in turn filtered in a filter F2 and fed to a power amplifier LV. The output signal of the power amplifier LV is then fed into a transmitting coil S, which transmits it by inductive transmission to a telecoil of a hearing aid.
Im Umsetzer wird somit das Hochfrequenzsignal von über 800 MHz auf eine Zwischenfrequenz unter 30 MHz heruntergemischt, so dass das resultierende Signal bei der gewünschten Trägerfrequenz für die induktive Übertragung liegt. Dabei findet keine Demodulation und Remodulation sowie keine Decodierung und Recodierung statt. Im Falle eines digitalen Eingangssignals bleibt auch das Ausgangssignal des Umsetzers digital. In diesem Fall wird also das digitale Ausgangssignal des Umsetzers induktiv auf das Hörgerät übertragen.In the converter, therefore, the high-frequency signal of over 800 MHz is down-mixed to an intermediate frequency below 30 MHz, so that the resulting signal is at the desired carrier frequency for the inductive transmission. There is no demodulation and remodulation, no decoding and recoding. In the case of a digital input signal, the output signal of the converter also remains digital. In this case, therefore, the digital output signal of the converter is inductively transmitted to the hearing aid.
Aus FIG 2 wird nun der Vorteil der vorliegenden Erfindung ersichtlich. Von einer Sendeeinheit SE wird großen Hörgeräten (HdOs) ein analoges oder digitales Signal unmittelbar durch HF-Übertragung beispielsweise über eine Entfernung von 10 m übertragen. Der verhältnismäßig große HF-Empfänger kann jeweils in einem HdO untergebracht werden. Für die Übertragung ist keine Umsetzereinheit notwendig.From FIG 2, the advantage of the present invention will now be apparent. A transmitting unit SE transmits an analog or digital signal directly to a large hearing aid (BTE) via RF transmission, for example over a distance of 10 m. The relatively large RF receiver can each be accommodated in a BTE. No converter unit is necessary for the transmission.
Die gleiche Sendeeinheit SE kann nun auch zur Versorgung von kleineren Hörgeräten (IdOs) in einer Entfernung von 10 m verwendet werden. Hierzu überträgt die Sendeeinheit SE die Nachricht zunächst per HF-Übertragung an einen Umsetzer U. Dieser ist entsprechend dem Blockschaltbild von FIG 1 ausgestaltet. Mit ihm wird ein induktives Ausgangssignal generiert, das in etwa eine Reichweite von 1,5 m besitzt, und von den IdOs aufgenommen wird. Hierzu besitzen die IdOs entsprechende induktive Empfänger.The same transmission unit SE can now also be used to supply smaller hearing aids (IdOs) at a distance of 10 m. For this purpose, the transmitting unit SE initially transmits the message by RF transmission to a converter U. This is configured in accordance with the block diagram of FIG. With it, an inductive output signal is generated, which has a range of approximately 1.5 m, and is recorded by the IdOs. For this purpose, the IdOs have corresponding inductive receivers.
Die Umsetzereinheit U trägt der Hörgeräteträger vorzugsweise am Körper. Damit können die IdOs stets auch mit Funksignalen versorgt werden, deren Quelle außerhalb der Reichweite induktiver Übertragung liegt.The converter unit U preferably carries the hearing aid wearer on the body. This allows the IdOs always with radio signals be supplied, the source is out of range of inductive transmission.
Claims (10)
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005005603A DE102005005603A1 (en) | 2005-02-07 | 2005-02-07 | Data transmission device for wireless data transmission for hearing aids and corresponding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1689209A2 true EP1689209A2 (en) | 2006-08-09 |
| EP1689209A3 EP1689209A3 (en) | 2009-07-01 |
Family
ID=36283052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06100764A Withdrawn EP1689209A3 (en) | 2005-02-07 | 2006-01-24 | Data transmitting apparatus for wireless data transmission for hearing-aid and corresponding method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20060177081A1 (en) |
| EP (1) | EP1689209A3 (en) |
| DE (1) | DE102005005603A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1908329A2 (en) * | 2005-07-25 | 2008-04-09 | Able Planet, Inc. | Audio signal system |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2656238C (en) * | 2006-06-20 | 2014-08-19 | Widex A/S | Housing for a hearing aid, hearing aid, and a method of preparing a hearing aid |
| US8666314B2 (en) | 2006-06-26 | 2014-03-04 | Siemens Audiologische Technik Gmbh | Bluetooth transmission facility for hearing devices, and corresponding transmission method |
| DE102006029196B4 (en) * | 2006-06-26 | 2009-12-10 | Siemens Audiologische Technik Gmbh | Bluetooth transmission device for hearing aids and corresponding transmission method |
| DE102006049213B4 (en) * | 2006-10-18 | 2013-04-18 | Siemens Audiologische Technik Gmbh | Hearing system with remote control as base station and corresponding communication method |
| DE102007011841C5 (en) | 2007-03-12 | 2015-05-13 | Siemens Audiologische Technik Gmbh | Transmission method with dynamic transmission power adjustment and corresponding hearing aid system |
| US8934984B2 (en) | 2007-05-31 | 2015-01-13 | Cochlear Limited | Behind-the-ear (BTE) prosthetic device with antenna |
| EP2502429B1 (en) * | 2009-11-17 | 2014-06-25 | Phonak AG | Hearing assistance system and method |
| EP2502428B1 (en) * | 2009-11-17 | 2014-06-25 | Phonak AG | Hearing assistance system and method |
| EP2461606B1 (en) * | 2010-12-06 | 2017-11-22 | Nxp B.V. | A time division multiplexed access method of operating a near field communication system and a near field communication system operating the same |
| EP2929701A1 (en) * | 2012-12-04 | 2015-10-14 | Sonova AG | Hearing instrument comprising two antennas |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR985256A (en) * | 1948-04-30 | 1951-07-17 | Device for reproducing communications transmitted by means of high frequency oscillations | |
| FR2047021B1 (en) * | 1969-06-21 | 1973-01-12 | Russona Ltd | |
| JPS5550750A (en) * | 1978-10-06 | 1980-04-12 | Hitachi Ltd | Receiver |
| DE3508830A1 (en) * | 1985-03-13 | 1986-09-18 | Robert Bosch Gmbh, 7000 Stuttgart | Hearing aid |
| US4920570A (en) * | 1987-12-18 | 1990-04-24 | West Henry L | Modular assistive listening system |
| IL89259A0 (en) * | 1989-02-10 | 1989-09-10 | Avr Communications Ltd | Audio apparatus |
| US5721783A (en) * | 1995-06-07 | 1998-02-24 | Anderson; James C. | Hearing aid with wireless remote processor |
| DE29522130U1 (en) * | 1995-11-08 | 2000-02-03 | Siemens Audiologische Technik Gmbh, 91058 Erlangen | Device for transferring programming data to hearing aids |
| DE10015421C2 (en) * | 2000-03-28 | 2002-07-04 | Implex Ag Hearing Technology I | Partially or fully implantable hearing system |
| DE10031832C2 (en) * | 2000-06-30 | 2003-04-30 | Cochlear Ltd | Hearing aid for the rehabilitation of a hearing disorder |
| US7062223B2 (en) * | 2003-03-18 | 2006-06-13 | Phonak Communications Ag | Mobile transceiver and electronic module for controlling the transceiver |
| US7778432B2 (en) * | 2003-06-06 | 2010-08-17 | Gn Resound A/S | Hearing aid wireless network |
-
2005
- 2005-02-07 DE DE102005005603A patent/DE102005005603A1/en not_active Withdrawn
-
2006
- 2006-01-24 EP EP06100764A patent/EP1689209A3/en not_active Withdrawn
- 2006-01-31 US US11/343,393 patent/US20060177081A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1908329A2 (en) * | 2005-07-25 | 2008-04-09 | Able Planet, Inc. | Audio signal system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060177081A1 (en) | 2006-08-10 |
| EP1689209A3 (en) | 2009-07-01 |
| DE102005005603A1 (en) | 2006-08-17 |
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