EP2174518B1 - Resistance identification of a peripheral loudspeaker of a hearing aid - Google Patents

Resistance identification of a peripheral loudspeaker of a hearing aid Download PDF

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Publication number
EP2174518B1
EP2174518B1 EP07785065.9A EP07785065A EP2174518B1 EP 2174518 B1 EP2174518 B1 EP 2174518B1 EP 07785065 A EP07785065 A EP 07785065A EP 2174518 B1 EP2174518 B1 EP 2174518B1
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Prior art keywords
speaker
ports
signal processing
processing unit
identification
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German (de)
French (fr)
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EP2174518A1 (en
Inventor
Andi Vonlanthen
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Sonova Holding AG
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Phonak AG
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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
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers

Definitions

  • the present invention relates to a hearing aid according to the preamble of claim 1, a method for producing a hearing aid according to the preamble of claim 5 and a module for connection to a signal processing unit of a hearing aid according to the preamble of claim 8.
  • hearing aids are extremely complex systems. In order to meet the respective needs of consumers, it is necessary to provide a large number of different hardware configuration variants. This results in a very cost-effective variety both for the production as well as for sales and the hearing aid adaptation, for example, in the production of a large number of different device configurations created, labeled and controlled accordingly must. In sales, a corresponding storage is required. When adapting the device, different procedures would have to be selected, depending on the device configuration.
  • the identification unit is designed as an identification resistor and the identification unit is operatively connected to the input of the comparison unit via a resistance measuring unit.
  • resistors with a very large number of different, exactly measurable resistance values are available or manufacturable, as discrete elements or manufactured in thin or thick film technology, and that the prevailing resistance value simply and quickly essentially with a current Voltage measurement can be determined.
  • a resistor is excellent, to be used as an identification unit.
  • an identification resistor we mean an impedance element which, measured at its two terminals, has a far predominant real part over a wide frequency range, for example up to 100 kHz.
  • Such an identification resistor may consist of a single resistor or of a plurality of resistors connected in series and / or in parallel.
  • the impedance measured thereon has a far predominant real part, although the presence of an imaginary part can not be ruled out, for example because of parasitic capacitances or inductances.
  • the built-in peripheral unit is recognized on the basis of the value of its identification resistance.
  • the resistance value By comparing this resistance value with resistance value possibilities stored in the identification possibilities storage unit, together with the respective units own characteristics such as e.g. Operating parameters for the signal processing unit, it is possible to use these sizes according to the present hardware configuration.
  • the peripheral unit has two terminals, which are connected exclusively by the identification resistor. This rules out that in the case of the identifying resistance measurement of the peripheral unit in question, separate input impedances influence the identification.
  • the output of the comparison unit is operatively connected to an operation control input at the signal processing unit.
  • operating programs for the signal processing unit that are suitable for operation can also be included in the identification possibilities storage unit the appropriate peripheral unit are suitable, with which, for example, wirelessly via a transceiver or wired, to be implemented for the signal processing unit operating programs can then be disabled if they are not suitable for the currently existing constellation with the identified peripheral unit.
  • the output of the comparison unit is operatively connected to the input of a configuration memory unit and in a further embodiment a connection is provided on the hearing device which is operatively connected to the output of the configuration memory unit.
  • the prevailing constellation can be read at any time in a present hearing device according to the invention kind.
  • the peripheral unit is a sensor, an actuator, a transceiver, a manual selector switch, a potentiometer, an acoustic / electrical input transducer or an electrical / mechanical output transducer.
  • the abovementioned peripheral unit is a loudspeaker unit.
  • the identity of the peripheral unit is automatically queried and stored by means of a resistance measurement.
  • the operation of the signal processing unit is controlled or selected and the implementation of a foreign operation provided for the intended peripheral units is preferably blocked.
  • signals at connections to and / or from the signal processing unit are interpreted differently or processed differently.
  • a module for installation on a signal processing unit of a hearing aid which has two connections, which are connected exclusively by an identification resistor.
  • this module is a speaker assembly for a hearing aid.
  • FIG. 1 is in the form of a signal flow / function block diagram, a hearing aid according to the invention shown with, as an example, two inventively designed peripheral units 3 E and 3 A.
  • a signal processing unit 1 which performs a digital signal processing and / or an analog, as shown with the DSP unit 1a and the amplifier unit 1b, has inputs and outputs.
  • the output of the peripheral unit 3 E is connected to an input E of the signal processing unit 1, an output A of the signal processing unit 1 to the input of the peripheral unit 3 A.
  • the peripheral units which are operatively connected to outputs and / or inputs of the signal processing unit 1 on the input side and / or output side, can be, for example, sensors, eg microphones, general acoustic / electrical converters, communication components, eg transceivers, control units, Eg program switching units, volume adjustment units to actuators, such as electrical / mechanical output transducer, eg speaker units.
  • sensors eg microphones, general acoustic / electrical converters, communication components, eg transceivers, control units, Eg program switching units, volume adjustment units to actuators, such as electrical / mechanical output transducer, eg speaker units.
  • the peripheral unit 3 E as a microphone unit
  • the unit 3 A as a speaker unit, commonly called “receiver” or “speaker”, in Fig. 1 shown.
  • each of the two provided peripheral units 3 is provided with an identification resistor, so the unit 3 E with an identification resistor R 1 , the peripheral unit 3 A with an identification resistor R 2 .
  • the value of the respective identification resistors R is uniquely identifying for the respectively associated peripheral unit.
  • an identification cycle is triggered. In this, as shown schematically with the cycle unit 7, for example, sequentially, all identification resistors R are applied to an impedance measuring unit 8, whereupon the identification resistance R of the intended peripheral unit is measured.
  • a DC resistance measurement is preferably performed by feeding a predetermined current to the identification resistors and measuring the resulting voltage across the respective resistors or, conversely, by specifying a predetermined voltage and measuring the resulting current.
  • An impedance measurement by means of alternating current is quite possible, but the influence of parasitic reactances on the measurement result depending on the selected frequency can be annoying.
  • an infinite resistance value R ⁇ is measured, this shows that no peripheral unit is connected to a possible connection to the signal processing unit 1.
  • the measurement results corresponding to the values R 1 , R 2 ... Appearing on the output side of the impedance measuring unit 8, for example sequentially, are supplied to a comparison unit 9.
  • the comparison unit 9 is an identification possibilities storage unit at a second comparator connection 11 switched on. All the identification resistance values R 1 , R 2 ... Are stored in the identification possibilities storage unit 11, which are assigned to peripheral units which can be connected to the signal processing unit 1.
  • the signal processing unit 1 can also have an identification mark, such as an identification resistor provided according to the invention, which is measured first via the cycle unit 7 and the impedance measuring unit 8 (not shown) and compared with a resistance value (not shown) identifying the identification option memory 11. If these resistance values coincide, this means that the intended identification storage unit 11 corresponds to the intended signal processing unit 1, otherwise not: If the identification resistance value at the signal processing unit 1 does not correspond to the resistance value identifying the identification possibilities storage unit 11, then all further operations are aborted and audible or visual on the hearing aid or a connection for an external station issued a warning signal.
  • an identification mark such as an identification resistor provided according to the invention
  • the cycle unit 13 On the comparison unit 9, on the basis of the measured resistance values R 1 , R 2 ..., It is determined which of the peripheral units defined in the identification option memory 11 are present in the present device configuration. Is a signal processing unit 1, for example of the type X and If peripheral units of the types M and N and W are connected, then the output unit of the comparison unit in a hearing device configuration memory 15 stores the device configuration XNW. By comparing the measured with the stored in the memory unit 11 resistance values and the local assignment resistance / peripheral unit, the respective peripheral unit is identified in an understandable manner.
  • the configuration memory 15 acts on the signal processing unit. Due to the identified present hardware configuration, as shown with the switching unit 17, one or more specific processing modes are activated on the signal processing unit 1. Depending on the device configuration determined by means of the identification resistors, operating states corresponding to this configuration are thus selected and activated on the signal processing unit 1, e.g. specific programs on the digital signal processing unit 1a and / or settings such as gain settings on analog amplifiers 1b.
  • the output of the configuration memory unit 15 is preferably routed to an output HGA of the hearing aid, with which the hearing aid is identified in its individual configuration, for example, on a fitting unit for the hearing aid.
  • Fig. 2 is schematically and simplified a module or a peripheral unit shown according to the present Invention and, for example, the units 3 E and 3 A according to Fig. 1 corresponding.
  • a preferred peripheral unit individually referred to as a module, has inputs or outputs corresponding to its specific function, which in Fig. 2
  • illustrated speaker module inputs E 1 and E 2 whereupon the electrical drive signal for the speaker 17 is applied.
  • An identification resistor R is provided on a module 3 according to the invention, which can preferably be measured via connections in such a way that the module has its own input impedances, as indicated by dashed lines Z represented, no or only negligible influence on the determination of the value of R take.
  • the identification resistor R is preferred and as in Fig. 2 shown connected to a terminal on one of the module's own terminals, E 2 , and connected to a third terminal, E I according to Fig. 2 , guided.
  • a module according to the invention has the connections for signal inputs and / or outputs corresponding to its function as well as a further additional connection, and the identification resistor R is connected between this additional connection and one of the module-specific connections.
  • an actual plug-and-play modular system for hearing aids is provided in a very simple manner, which allows to massively reduce the manufacturing costs, to minimize the connection configuration on a signal processing unit of the hearing aid, and in particular also faulty packaging, Misconfigurations, mismatches etc. due to human carelessness as far as possible to turn off, the identification technique used is extremely simple, safe and easy to handle in the sense of rapid identification.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Neurosurgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Description

Die vorliegende Erfindung betrifft ein Hörgerät nach dem Oberbegriff von Anspruch 1, ein Verfahren zur Herstellung eines Hörgerätes nach dem Oberbegriff von Anspruch 5 sowie ein Modul zum Anschliessen an eine Signalverarbeitungseinheit eines Hörgerätes nach dem Oberbegriff von Anspruch 8.The present invention relates to a hearing aid according to the preamble of claim 1, a method for producing a hearing aid according to the preamble of claim 5 and a module for connection to a signal processing unit of a hearing aid according to the preamble of claim 8.

In der WO 99/09799 derselben Anmelderin wie vorliegende Anmeldung ist ausgeführt, dass Hörgeräte äusserst komplexe Systeme seien. Um den jeweiligen Bedürfnissen der Verbraucher gerecht zu werden, sei es notwendig, eine grosse Zahl verschiedener Hardware-Konfigurationsvarianten bereitzustellen. Dies ergebe sowohl für die Fertigung wie auch für den Vertrieb und die Hörgeräteanpassung eine äusserst kostenwirksame Vielfalt, indem z.B. in der Fertigung eine Grosszahl unterschiedlicher Gerätekonfigurationen erstellt, entsprechend bezeichnet und kontrolliert werden müsse. Im Vertrieb sei eine entsprechende Lagerhaltung erforderlich. Bei der Geräteanpassung müssten jeweils unterschiedliche Vorgehensweisen gewählt werden, je nach vorliegender Gerätekonfiguration.In the WO 99/09799 The same applicant as the present application states that hearing aids are extremely complex systems. In order to meet the respective needs of consumers, it is necessary to provide a large number of different hardware configuration variants. This results in a very cost-effective variety both for the production as well as for sales and the hearing aid adaptation, for example, in the production of a large number of different device configurations created, labeled and controlled accordingly must. In sales, a corresponding storage is required. When adapting the device, different procedures would have to be selected, depending on the device configuration.

In der erwähnten WO 99/09799 werden diese Probleme mit einem Hörgerät der im Oberbegriff von Anspruch 1 dargelegten Art gelöst. Entsprechend wird in der erwähnten Schrift ein Verfahren zur Herstellung vorgeschlagen, wie im Oberbegriff von Anspruch 5 ausgeführt.In the mentioned WO 99/09799 These problems are solved with a hearing aid of the kind set forth in the preamble of claim 1. Accordingly, a method for manufacturing is proposed in the cited document, as stated in the preamble of claim 5.

Es ist Aufgabe der vorliegenden Erfindung, ausgehend vom genannten Hörgerät bzw. Verfahren, eine einfache, kostengünstige Realisationsform vorzuschlagen. Dies wird dadurch erreicht, dass die Identifikationseinheit als Identifikationswiderstand ausgebildet ist und die Identifikationseinheit über eine Widerstandsmesseinheit mit dem Eingang der Vergleichseinheit wirkverbunden ist.It is an object of the present invention, starting from said hearing aid or method, to propose a simple, cost-effective implementation. This is achieved in that the identification unit is designed as an identification resistor and the identification unit is operatively connected to the input of the comparison unit via a resistance measuring unit.

Dabei wird von der Einsicht ausgegangen, dass Widerstände mit einer sehr grossen Anzahl unterschiedlicher, exakt messbarer Widerstandswerte erhältlich oder fertigbar sind, so als diskrete Elemente oder in Dünn- oder Dickfilmtechnologie gefertigt, und dass der jeweilig vorherrschende Widerstandswert einfach und schnell im wesentlichen mit einer Strom-Spannungsmessung ermittelt werden kann. Damit eignet sich ein Widerstand ausgezeichnet, um als Identifikationseinheit eingesetzt zu werden.It is based on the insight that resistors with a very large number of different, exactly measurable resistance values are available or manufacturable, as discrete elements or manufactured in thin or thick film technology, and that the prevailing resistance value simply and quickly essentially with a current Voltage measurement can be determined. Thus, a resistor is excellent, to be used as an identification unit.

Wenn wir im Weiteren von einem Identifikationswiderstand sprechen, so verstehen wir darunter ein Impedanzelement, welches, an seinen zwei Anschlüssen ausgemessen, über einen weiten Frequenzbereich, so z.B. bis 100 KHz, einen weit überwiegenden Realteil aufweist. Ein solcher Identifikationswiderstand kann aus einem einzelnen Widerstand oder aus mehreren in Serie und/oder parallel geschalteten Widerständen bestehen. Die daran gemessene Impedanz hat wie erwähnt einen weit überwiegenden Realteil, wobei Vorhandensein eines Imaginärteils jedoch nicht auszuschliessen ist, beispielsweise aufgrund von parasitären Kapazitäten bzw. Induktivitäten.If we speak of an identification resistor below, we mean an impedance element which, measured at its two terminals, has a far predominant real part over a wide frequency range, for example up to 100 kHz. Such an identification resistor may consist of a single resistor or of a plurality of resistors connected in series and / or in parallel. The impedance measured thereon, as mentioned, has a far predominant real part, although the presence of an imaginary part can not be ruled out, for example because of parasitic capacitances or inductances.

Mittels der Widerstandsmessung an der Widerstandsmesseinheit wird die eingebaute periphere Einheit aufgrund des Wertes ihres Identifikationswiderstandes erkannt. Durch Vergleich dieses Widerstandswertes mit Widerstandswertmöglichkeiten, die in der Identifikationsmöglichkeiten-Speichereinheit abgelegt sind, zusammen mit den jeweiligen Einheiten eigenen Kenngrössen wie z.B. Betriebsparameter für die Signalverarbeitungseinheit, wird ermöglicht, diese Grössen entsprechend der vorliegenden Hardwarekonfiguration einzusetzen.By means of the resistance measurement at the resistance measuring unit, the built-in peripheral unit is recognized on the basis of the value of its identification resistance. By comparing this resistance value with resistance value possibilities stored in the identification possibilities storage unit, together with the respective units own characteristics such as e.g. Operating parameters for the signal processing unit, it is possible to use these sizes according to the present hardware configuration.

Es werden folgende Vorteile weiterhin erwirkt:

  • Einmal zusammengebaut, identifiziert sich das Hörgerät bezüglich Hardware-Konfiguration selber.
  • Insbesondere dadurch, dass der Ausgang der Vergleichseinheit mit dem Eingang einer Konfigurationsspeichereinheit wirkverbunden ist und am Hörgerät ein Anschluss vorgesehen ist, der mit dem Ausgang dieser Konfigurationsspeichereinheit wirkverbunden ist, ergibt sich die Möglichkeit, die Hardwarekonstellation des Hörgerätes auszulesen. Damit erübrigt sich oft eine Beschriftung, wie beispielsweise an der Verpackung, und es werden Fehlermöglichkeiten bei der Produktionskontrolle, im Vertrieb und in der Anpassung der Hörgeräte ausgeschlossen. Es ist auch ausgeschlossen, ein vorliegendes Hörgerät auf der Basis einer vermeintlich anderen Konfiguration, was periphere Hardwareeinheiten anbelangt, zu testen, zu liefern bzw. anzupassen. Somit werden die Vorteile beibehalten, die das Vorgehen generell gemäss der WO 99/09799 mit sich bringt, aber unter Ausnützung einer höchst einfachen, schnellen und genauen Identifikationstechnik, nämlich gemäss vorliegender Erfindung, mittel Identifikationswiderstandes.
The following advantages are still obtained:
  • Once assembled, the hearing aid identifies itself in terms of hardware configuration.
  • In particular, the fact that the output of the comparison unit is operatively connected to the input of a configuration memory unit and a connection is provided on the hearing aid, which is operatively connected to the output of this configuration memory unit, there is the possibility to read the hardware configuration of the hearing aid. This often eliminates the need for a label, such as on the packaging, and eliminates the possibility of errors in production control, distribution and fitting of hearing aids. It is also excluded to test, deliver or adapt a present hearing aid based on a supposedly different configuration as far as peripheral hardware units are concerned. Thus, the advantages that the procedure generally according to the WHERE 99/09799 brings with it, but taking advantage of a very simple, fast and accurate identification technique, namely according to the present invention, means identification resistance.

In einer Ausführungsform des erfindungsgemässen Hörgerätes hat die periphere Einheit zwei Anschlüsse, die ausschliesslich durch den Identifikationswiderstand verbunden sind. Dadurch wird ausgeschlossen, dass bei der identifizierenden Widerstandsmessung der betrachteten peripheren Einheit eigene Eingangsimpedanzen auf die Identifikation Einfluss nehmen.In one embodiment of the hearing aid according to the invention, the peripheral unit has two terminals, which are connected exclusively by the identification resistor. This rules out that in the case of the identifying resistance measurement of the peripheral unit in question, separate input impedances influence the identification.

In einer weiteren Ausführungsform des erfindungsgemässen Hörgerätes ist der Ausgang der Vergleichseinheit mit einem Betriebssteuereingang an der Signalverarbeitungseinheit wirkverbunden. Damit wird es möglich, die einer identifizierten peripheren Einheit zugeordneten, optimalen Betriebsgrössen an der Signalverarbeitungseinheit automatisch zur Wirkung zu bringen. Wird dabei erkannt, dass eine eingebaute periphere Einheit nicht mit der vorgesehenen Signalverarbeitungseinheit kompatibel ist, was beispielsweise durch Fehlen des entsprechenden Identifikationswiderstandswertes in der Identifikationsmöglichkeiten-Speichereinheit angezeigt wird, so kann die Inbetriebnahme der erwähnten peripheren Einheit und/oder der Signalverarbeitungseinheit gesperrt werden, z.B. um Schädigungen zu verhüten.In a further embodiment of the hearing aid according to the invention, the output of the comparison unit is operatively connected to an operation control input at the signal processing unit. This makes it possible to automatically bring the optimal operating variables assigned to an identified peripheral unit to the signal processing unit into effect. If it is detected that a built-in peripheral unit is not compatible with the intended signal processing unit, which is indicated for example by lack of the corresponding identification resistance value in the identification capabilities storage unit, the commissioning of said peripheral unit and / or the signal processing unit can be disabled, e.g. to prevent damage.

Dabei können in der Identifikationsmöglichkeiten-Speichereinheit beispielsweise auch Betriebsprogramme für die Signalverarbeitungseinheit, die sich zum Betrieb mit der entsprechenden peripheren Einheit eignen, spezifiziert sein, womit, beispielsweise drahtlos über einen Transceiver oder drahtgebunden, für die Signalverarbeitungseinheit zu implementierende Betriebsprogramme dann gesperrt werden können, wenn sie sich für die momentan vorliegende Konstellation mit der identifizierten peripheren Einheit nicht eignen.In this case, for example, operating programs for the signal processing unit that are suitable for operation can also be included in the identification possibilities storage unit the appropriate peripheral unit are suitable, with which, for example, wirelessly via a transceiver or wired, to be implemented for the signal processing unit operating programs can then be disabled if they are not suitable for the currently existing constellation with the identified peripheral unit.

In einer weiteren Ausführungsform des erfindungsgemässen Hörgerätes ist, wie bereits erwähnt wurde, der Ausgang der Vergleichseinheit mit dem Eingang einer Konfigurationsspeichereinheit wirkverbunden und in einer weiteren Ausführungsform ist am Hörgerät ein Anschluss vorgesehen, der mit dem Ausgang der Konfigurationsspeichereinheit wirkverbunden ist. Damit kann an einem vorliegenden Hörgerät erfindungsgemässer Art jederzeit die vorherrschende Konstellation ausgelesen werden.In a further embodiment of the hearing device according to the invention, as already mentioned, the output of the comparison unit is operatively connected to the input of a configuration memory unit and in a further embodiment a connection is provided on the hearing device which is operatively connected to the output of the configuration memory unit. Thus, the prevailing constellation can be read at any time in a present hearing device according to the invention kind.

In einer weiteren Ausführungsform des erfindungsgemässen Hörgerätes ist die periphere Einheit ein Sensor, ein Aktuator, ein Transceiver, eine manuelle Wahlschalteinheit, ein Potentiometer, ein akustisch/elektrischer Eingangswandler oder ein elektrisch/mechanischer Ausgangswandler.In a further embodiment of the hearing aid according to the invention, the peripheral unit is a sensor, an actuator, a transceiver, a manual selector switch, a potentiometer, an acoustic / electrical input transducer or an electrical / mechanical output transducer.

In einer besonders bevorzugten Ausführungsform des erfindungsgemässen Hörgerätes ist die erwähnte periphere Einheit eine Lautsprechereinheit.In a particularly preferred embodiment of the hearing aid according to the invention, the abovementioned peripheral unit is a loudspeaker unit.

Gemäss dem erfindungsgemässen Herstellungsverfahren wird die Identität der peripheren Einheit automatisch anhand einer Widerstandsmessung abgefragt und abgespeichert. Dabei wird in einer Ausführungsform des erwähnten Verfahrens mit der abgefragten Identität der peripheren Einheit der Betrieb der Signalverarbeitungseinheit gesteuert oder selektioniert und dabei vorzugsweise die Implementierung eines der vorgesehenen peripheren Einheiten fremden Betriebes gesperrt.According to the manufacturing method according to the invention, the identity of the peripheral unit is automatically queried and stored by means of a resistance measurement. there In one embodiment of the mentioned method with the requested identity of the peripheral unit, the operation of the signal processing unit is controlled or selected and the implementation of a foreign operation provided for the intended peripheral units is preferably blocked.

In einer weiteren Ausführungsform des erfindungsgemässen Verfahrens werden aufgrund der Identifizierung anhand des Identifizierungswiderstandes Signale an Anschlüsse zu und/oder von der Signalverarbeitungseinheit unterschiedlich interpretiert bzw. unterschiedlich verarbeitet.In a further embodiment of the method according to the invention, based on the identification based on the identification resistor, signals at connections to and / or from the signal processing unit are interpreted differently or processed differently.

Im Weiteren wird ein Modul für den Einbau an eine Signalverarbeitungseinheit eines Hörgerätes vorgeschlagen, welches zwei Anschlüsse hat, die ausschliesslich durch einen Identifikationswiderstand verbunden sind.In addition, a module for installation on a signal processing unit of a hearing aid is proposed, which has two connections, which are connected exclusively by an identification resistor.

In einer Ausführungsform dieses Moduls handelt es sich um eine Lautsprecheranordnung für ein Hörgerät.In one embodiment of this module is a speaker assembly for a hearing aid.

Bezüglich den Möglichkeiten, welche sich grundsätzlich durch Autoidentifikation peripherer Einheiten an Hörgeräten ergeben, wird auch vollumfänglich und zusätzlich zu den Ausführungen in vorliegender Anmeldung auf die Ausführungen in der erwähnten WO 99/09799 verwiesen.With regard to the possibilities that arise in principle by auto-identification of peripheral units on hearing aids, is also fully and in addition to the statements in the present application to the statements in the mentioned WO 99/09799 directed.

Die Erfindung wird anschliessend beispielsweise anhand von Figuren weiter erläutert. Es zeigen:

Fig. 1
anhand eines Signalfluss/Funktionsblockdiagrammes, das Grundprinzip des erfindungsgemässen Hörgerätes;
Fig. 2
schematisch am Beispiel eines Lautsprechermoduls, eine erfindungsgemäss einsetzbare periphere Einheit gemäss vorliegender Erfindung.
The invention will be further explained by way of example with reference to figures. Show it:
Fig. 1
based on a signal flow / function block diagram, the basic principle of the hearing aid according to the invention;
Fig. 2
schematically using the example of a loudspeaker module, a usable according to the invention peripheral unit according to the present invention.

In Fig. 1 ist, in Form eines Signalfluss/Funktionsblock-diagrammes, ein erfindungsgemässes Hörgerät dargestellt mit, als Beispiel, zwei erfindungsgemäss ausgebildeten peripheren Einheiten 3E und 3A. Eine Signalverarbeitungseinheit 1, welche eine digitale Signalverarbeitung und/oder eine analoge durchführt, wie mit der DSP-Einheit 1a bzw. der Verstärkereinheit 1b dargestellt, hat Eingänge und Ausgänge. Der Ausgang der peripheren Einheit 3E ist mit einem Eingang E der Signalverarbeitungseinheit 1 verbunden, ein Ausgang A der Signalverarbeitungseinheit 1 mit dem Eingang der peripheren Einheit 3A. Bei den peripheren Einheiten, welche ein- und/oder ausgangsseitig mit Ausgängen und/oder Eingängen der Signalverarbeitungseinheit 1 wirkverbunden sind, kann es sich beispielsweise um Sensoren, z.B. Mikrophone, genereller akustisch/elektrische Wandler handeln, um Kommunikationskomponenten, z.B. Transceiver, um Steuereinheiten, z.B. Programmumschalteinheiten, Lautstärke-Einstelleinheiten, um Aktuatoren, wie elektrisch/mechanische Ausgangswandler, z.B. Lautsprechereinheiten. Nur beispielsweise ist die periphere Einheit 3E als Mikrophoneinheit, die Einheit 3A als Lautsprechereinheit, üblicherweise "receiver" oder "speaker" genannt, in Fig. 1 dargestellt. Am dargestellten Beispiel ist jede der zwei vorgesehenen peripheren Einheiten 3 mit einem Identifikationswiderstand versehen, so die Einheit 3E mit einem Identifikationswiderstand R1, die periphere Einheit 3A mit einem Identifikationswiderstand R2. Der Wert der jeweiligen Identifikationswiderstände R ist für die jeweils zugehörige periphere Einheit eindeutig identifizierend. Nach hardwaremässiger Konfiguration des Hörgerätes wird ein Identifikationszyklus ausgelöst. Bei diesem werden, wie schematisch mit der Zykluseinheit 7 dargestellt, beispielsweise sequentiell, alle Identifikationswiderstände R auf eine Impedanzmesseinheit 8 aufgeschaltet, woran der Identifikationswiderstand R der vorgesehenen peripheren Einheit gemessen wird. Wie dem Fachmann durchaus bekannt, wird dabei bevorzugterweise eine DC-Widerstandsmessung vorgenommen durch Einspeisung eines vorgegebenen Stromes an die Identifikationswiderstände und Messung der resultierenden Spannung an den jeweiligen Widerständen oder, umgekehrt, durch Vorgabe einer vorgegebenen Spannung und Messung des resultierenden Stromes. Auch eine Impedanzmessung mittels Wechselstromes ist durchaus möglich, wobei aber der Einfluss parasitärer Reaktanzen auf das Messresultat je nach gewählter Frequenz störend werden kann.In Fig. 1 is in the form of a signal flow / function block diagram, a hearing aid according to the invention shown with, as an example, two inventively designed peripheral units 3 E and 3 A. A signal processing unit 1, which performs a digital signal processing and / or an analog, as shown with the DSP unit 1a and the amplifier unit 1b, has inputs and outputs. The output of the peripheral unit 3 E is connected to an input E of the signal processing unit 1, an output A of the signal processing unit 1 to the input of the peripheral unit 3 A. The peripheral units, which are operatively connected to outputs and / or inputs of the signal processing unit 1 on the input side and / or output side, can be, for example, sensors, eg microphones, general acoustic / electrical converters, communication components, eg transceivers, control units, Eg program switching units, volume adjustment units to actuators, such as electrical / mechanical output transducer, eg speaker units. For example only, the peripheral unit 3 E as a microphone unit, the unit 3 A as a speaker unit, commonly called "receiver" or "speaker", in Fig. 1 shown. In the illustrated example, each of the two provided peripheral units 3 is provided with an identification resistor, so the unit 3 E with an identification resistor R 1 , the peripheral unit 3 A with an identification resistor R 2 . The value of the respective identification resistors R is uniquely identifying for the respectively associated peripheral unit. After hardware configuration of the hearing aid, an identification cycle is triggered. In this, as shown schematically with the cycle unit 7, for example, sequentially, all identification resistors R are applied to an impedance measuring unit 8, whereupon the identification resistance R of the intended peripheral unit is measured. As is well known to those skilled in the art, a DC resistance measurement is preferably performed by feeding a predetermined current to the identification resistors and measuring the resulting voltage across the respective resistors or, conversely, by specifying a predetermined voltage and measuring the resulting current. An impedance measurement by means of alternating current is quite possible, but the influence of parasitic reactances on the measurement result depending on the selected frequency can be annoying.

Wird ein unendlicher Widerstandswert R∞ gemessen, so zeigt dies, dass an einem möglichen Anschluss an die Signalverarbeitungseinheit 1 keine periphere Einheit angeschlossen ist. Die ausgangsseitig der Impedanzmesseinheit 8, beispielsweise sequentiell, erscheinenden Messresultate entsprechend den Werten R1, R2... werden einer Vergleichseinheit 9 zugeführt. Der Vergleichseinheit 9 ist an einem zweiten Vergleicheranschluss eine Identifikationsmöglichkeiten-Speichereinheit 11 zugeschaltet. In der Identifikationsmöglichkeiten-Speichereinheit 11 sind alle Identifikationswiderstandswerte R1, R2... abgespeichert, welche peripheren Einheiten zugeordnet sind, die der Signalverarbeitungseinheit 1 aufgeschaltet werden können. Durchaus kann auch die Signalverarbeitungseinheit 1 eine Identifikationsmarkierung, wie einen erfindungsgemäss vorgesehenen Identifikationswiderstand aufweisen, der (nicht dargestellt) als erstes über die Zykluseinheit 7 und die Impedanzmesseinheit 8 gemessen wird und mit einem den Identifikationsmöglichkeitenspeicher 11 identifizierenden Widerstandswert (nicht dargestellt) verglichen wird. Stimmen diese Widerstandswerte überein, so heisst das, dass die vorgesehene Identifikationsmöglichkeiten-Speichereinheit 11 der vorgesehenen Signalverarbeitungseinheit 1 entspricht, andernfalls nicht: Entspricht der Identifikationswiderstandswert an der Signalverarbeitungseinheit 1 nicht dem Widerstandswert, der die Identifikationsmöglichkeiten-Speichereinheit 11 kennzeichnet, dann werden alle weiteren Vorgänge abgebrochen und z.B. akustisch oder optisch am Hörgerät oder an einem Anschluss für eine externe Station ein Warnsignal ausgegeben.If an infinite resistance value R ∞ is measured, this shows that no peripheral unit is connected to a possible connection to the signal processing unit 1. The measurement results corresponding to the values R 1 , R 2 ... Appearing on the output side of the impedance measuring unit 8, for example sequentially, are supplied to a comparison unit 9. The comparison unit 9 is an identification possibilities storage unit at a second comparator connection 11 switched on. All the identification resistance values R 1 , R 2 ... Are stored in the identification possibilities storage unit 11, which are assigned to peripheral units which can be connected to the signal processing unit 1. The signal processing unit 1 can also have an identification mark, such as an identification resistor provided according to the invention, which is measured first via the cycle unit 7 and the impedance measuring unit 8 (not shown) and compared with a resistance value (not shown) identifying the identification option memory 11. If these resistance values coincide, this means that the intended identification storage unit 11 corresponds to the intended signal processing unit 1, otherwise not: If the identification resistance value at the signal processing unit 1 does not correspond to the resistance value identifying the identification possibilities storage unit 11, then all further operations are aborted and audible or visual on the hearing aid or a connection for an external station issued a warning signal.

Danach wird sequentiell, wie mit der Zykluseinheit 13 schematisch dargestellt, an der Vergleichseinheit 9, anhand der gemessenen Widerstandswerte R1, R2..., ermittelt, welche der im Identifikationsmöglichkeitenspeicher 11 definierten peripheren Einheiten bei der vorliegenden Gerätekonfiguration vorhanden sind. Ist eine Signalverarbeitungseinheit 1 beispielsweise des Typs X und sind periphere Einheiten der Typen M und N und W aufgeschaltet, so wird ausgangsseitig der Vergleichseinheit in einem Hörgerätekonfigurationsspeicher 15 die Gerätekonfiguration XNW abgespeichert. Durch Vergleich der gemessenen mit den in der Speichereinheit 11 abgelegten Widerstandswerten und der dortigen Zuordnung Widerstandswert/periphere Einheit wird die jeweilige periphere Einheit in verständlicher Art und Weise identifiziert.Thereafter, sequentially, as shown schematically with the cycle unit 13, on the comparison unit 9, on the basis of the measured resistance values R 1 , R 2 ..., It is determined which of the peripheral units defined in the identification option memory 11 are present in the present device configuration. Is a signal processing unit 1, for example of the type X and If peripheral units of the types M and N and W are connected, then the output unit of the comparison unit in a hearing device configuration memory 15 stores the device configuration XNW. By comparing the measured with the stored in the memory unit 11 resistance values and the local assignment resistance / peripheral unit, the respective peripheral unit is identified in an understandable manner.

Ausgangsseitig wirkt der Konfigurationsspeicher 15 auf die Signalverarbeitungseinheit ein. Aufgrund der identifizierten vorliegenden Hardware-Konfiguration wird, wie mit der Schalteinheit 17 dargestellt, ein oder mehrere spezifische Bearbeitungsmodi an der Signalverarbeitungseinheit 1 aktiviert. In Abhängigkeit der mittels der Identifikationswiderstände ermittelten Gerätekonfiguration werden also dieser Konfiguration entsprechende Betriebszustände an der Signalverarbeitungseinheit 1 ausgewählt und aktiviert, so z.B. spezifische Programme an der digitalen Signalverarbeitungseinheit 1a und/oder Einstellungen, wie Verstärkungseinstellungen an analogen Verstärkern 1b.On the output side, the configuration memory 15 acts on the signal processing unit. Due to the identified present hardware configuration, as shown with the switching unit 17, one or more specific processing modes are activated on the signal processing unit 1. Depending on the device configuration determined by means of the identification resistors, operating states corresponding to this configuration are thus selected and activated on the signal processing unit 1, e.g. specific programs on the digital signal processing unit 1a and / or settings such as gain settings on analog amplifiers 1b.

Im weiteren ist der Ausgang der Konfigurationsspeichereinheit 15 vorzugsweise auf einen Ausgang HGA des Hörgerätes geführt, womit das Hörgerät in seiner individuellen Konfiguration beispielsweise an einer Anpasseinheit für das Hörgerät identifiziert wird.Furthermore, the output of the configuration memory unit 15 is preferably routed to an output HGA of the hearing aid, with which the hearing aid is identified in its individual configuration, for example, on a fitting unit for the hearing aid.

In Fig. 2 ist schematisch und vereinfacht ein Modul bzw. eine periphere Einheit dargestellt gemäss vorliegender Erfindung und beispielsweise den Einheiten 3E und 3A gemäss Fig. 1 entsprechend. Grundsätzlich hat eine derartige, bevorzugte periphere Einheit, einzeln betrachtet als Modul bezeichnet, ihrer spezifischen Funktion entsprechende Ein- bzw. Ausgänge, das in Fig. 2 beispielsweise dargestellte Lautsprechermodul Eingänge E1 und E2, woran das elektrische Treibersignal für den Lautsprecher 17 angelegt wird. An einem erfindungsgemässen Modul 3 ist ein Identifikationswiderstand R vorgesehen, welcher über Anschlüsse bevorzugt derart ausgemessen werden kann, dass dem Modul eigene Eingangsimpedanzen, wie gestrichelt mit Z dargestellt, keinen oder nur vernachlässigbaren Einfluss auf die Bestimmung des Wertes von R nehmen. Der Identifikationswiderstand R ist dabei bevorzugt und wie in Fig. 2 dargestellt mit einem Anschluss an einem der moduleigenen Anschlüsse, E2, verbunden und auf einen dritten Anschluss, EI gemäss Fig. 2, geführt. Damit hat ein erfindungsgemässes Modul die seiner Funktion entsprechenden Anschlüsse für Signalein- und/oder -ausgänge sowie einen weiteren zusätzlichen Anschluss, und der Identifikationswiderstand R ist zwischen diesem zusätzlichen Anschluss und einem der moduleigenen Anschlüsse geschaltet.In Fig. 2 is schematically and simplified a module or a peripheral unit shown according to the present Invention and, for example, the units 3 E and 3 A according to Fig. 1 corresponding. In principle, such a preferred peripheral unit, individually referred to as a module, has inputs or outputs corresponding to its specific function, which in Fig. 2 For example, illustrated speaker module inputs E 1 and E 2 , whereupon the electrical drive signal for the speaker 17 is applied. An identification resistor R is provided on a module 3 according to the invention, which can preferably be measured via connections in such a way that the module has its own input impedances, as indicated by dashed lines Z represented, no or only negligible influence on the determination of the value of R take. The identification resistor R is preferred and as in Fig. 2 shown connected to a terminal on one of the module's own terminals, E 2 , and connected to a third terminal, E I according to Fig. 2 , guided. In this way, a module according to the invention has the connections for signal inputs and / or outputs corresponding to its function as well as a further additional connection, and the identification resistor R is connected between this additional connection and one of the module-specific connections.

Mit dem Hörgerät und dem Verfahren gemäss vorliegender Erfindung wird auf höchst einfache Art und Weise ein eigentliches Plug-and-Play-Modularsystem für Hörgeräte bereitgestellt, welches erlaubt, die Fertigungskosten massiv zu senken, die Anschlusskonfiguration an einer Signalverarbeitungseinheit des Hörgerätes zu minimalisieren und insbesondere auch Fehlverpackungen, Fehlkonfigurationen, Fehlanpassungen etc. aufgrund menschlicher Unachtsamkeit weitestgehend auszuschalten, wobei die verwendete Identifikationstechnik höchst einfach, sicher und schnell handhabbar im Sinne einer raschen Identifikationserfassung ist. Sowohl für die Identifikation der Einheiten mit dem Identitifikationswiderstand wie auch für das Messen des entsprechenden Widerstandswertes sind nur wenige zusätzliche Vorkehrungen an bereits bestehenden Einheiten vorzukehren, nämlich, bei peripheren Einheitsmodulen Vorsehen eines zusätzlichen Widerstandes und, erfassungsseitig, Vorsehen einer kurzzeitigen Spannungs- bzw. Strombeaufschlagung an einem Anschluss und entsprechend kurzzeitige Strom- bzw. Spannungsregistrierung.With the hearing aid and the method according to the present invention, an actual plug-and-play modular system for hearing aids is provided in a very simple manner, which allows to massively reduce the manufacturing costs, to minimize the connection configuration on a signal processing unit of the hearing aid, and in particular also faulty packaging, Misconfigurations, mismatches etc. due to human carelessness as far as possible to turn off, the identification technique used is extremely simple, safe and easy to handle in the sense of rapid identification. Both for the identification of the units with the identification resistor as well as for the measurement of the corresponding resistance value, only a few additional precautions to vorzukehr already existing units, namely, for peripheral unit modules providing an additional resistance and, on the detection side, providing a momentary voltage or current application to a connection and correspondingly short-term current or voltage registration.

Claims (8)

  1. A hearing device with a signal processing unit, the input and/or output side of which is functionally connected to a digital, hybrid or analog peripheral device, that peripheral device encompassing an identifying unit whose output effectively connects to an input of a comparator, with the input side of the comparator on its part functionally connected to an identification options memory module, characterized in that the identifying unit is in the form of an identification resistor whose contacts connect to the comparator via a resistance measurement unit, wherein the peripheral device is an electromechanical output converter in the form of a speaker, wherein the speaker is provided with at least three ports, these being two speaker ports and one additional port, with the identification resistor connected to one of the speaker ports and to the said additional port.
  2. The hearing device according to claim 1, characterized in that the output of the comparator is functionally connected to an operating control input on the signal processing unit.
  3. The hearing device according to claim 1 or 2, characterized in that the output of the comparator is functionally connected to the input of a configuration memory module.
  4. The hearing device according to claim 3, characterized in that the hearing device is provided with an output that connects to the output of the configuration memory module.
  5. A method for producing a hearing device including a signal processing unit and, connected to the latter, at least one peripheral device, wherein the peripheral device is installed with the signal processing unit, the identity of the peripheral device is automatically queried and stored in memory, characterized in that the identity of the peripheral device is determined by means of a resistance measurement, wherein the peripheral device is an electromechanical output converter in the form of a speaker, wherein the speaker is provided with at least three ports, these being two speaker ports and one additional port, with the identification resistor connected to one of the speaker ports and to the said additional port.
  6. The method according to claim 5, characterized in that the identity of the speaker so determined selects the operating mode of the signal processing unit while preferably locking out implementation of any operation extrinsic to the object speaker and/or to the signal processing unit.
  7. The method according to claim 5 or 6, characterized in that, as a function of the identification, signals travelling to or from the ports of the signal processing unit are subjected to different interpretation and/or to different processing.
  8. Module for connection to a signal processing unit of a hearing device, equipped with ports corresponding to the function of the module, characterized in that two ports are connected by an identification resistor, wherein the module is an electromechanical output converter in the form of a speaker, and wherein the speaker is provided with at least three ports, these being two speaker ports and one additional port, with the identification resistor connected to one of the speaker ports and to the said additional port.
EP07785065.9A 2007-07-26 2007-07-26 Resistance identification of a peripheral loudspeaker of a hearing aid Active EP2174518B1 (en)

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