EP0175909A1 - Hearing aid device - Google Patents

Hearing aid device Download PDF

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Publication number
EP0175909A1
EP0175909A1 EP85110215A EP85110215A EP0175909A1 EP 0175909 A1 EP0175909 A1 EP 0175909A1 EP 85110215 A EP85110215 A EP 85110215A EP 85110215 A EP85110215 A EP 85110215A EP 0175909 A1 EP0175909 A1 EP 0175909A1
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EP
European Patent Office
Prior art keywords
hearing aid
signals
control
microphone
ultrasound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85110215A
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German (de)
French (fr)
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EP0175909B1 (en
Inventor
Dieter Busch
Friedrich Harless
Gerhard Krauss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos GmbH
Siemens AG
Original Assignee
Siemens AG
Siemens Audioligische Technik GmbH
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Application filed by Siemens AG, Siemens Audioligische Technik GmbH filed Critical Siemens AG
Priority to AT85110215T priority Critical patent/ATE73288T1/en
Publication of EP0175909A1 publication Critical patent/EP0175909A1/en
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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
    • H04R25/558—Remote control, e.g. of amplification, frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/554—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

Definitions

  • the invention relates to hearing aids according to the preamble of claim 1.
  • Devices of this type are known, for example, from DE-OS 19 38 381.
  • Hearing aids should be as small as possible so that they can be worn inconspicuously.
  • the volume of these devices should also be changeable in operation. For this you need adjustment devices that can be operated from the outside, so that the device can be set when it is in operation. With the small devices, however, there is only a small area available for attaching actuators, which are also accessible when the device is being carried.
  • a hearing aid was therefore proposed, the components of which are distributed over two housings, of which the first contains a transmitter which is connected wirelessly to the second, in which the parts of a hearing aid and one on the Transmitter tuned receiver. It was no longer necessary to design the device so that its actuators are accessible from the outside. Rather, it was possible to attach the actual actuator elements to a housing, which can be carried in the pocket, so that actuators are attached on the one hand regardless of a special shape can and that on the other hand can be adjusted under direct eye control.
  • antennas are required for the transmission, which, particularly in the case of miniature hearing aids, only take up a very limited amount of space.
  • the invention has for its object to provide a remote control in a hearing aid according to the preamble of claim 1, which can be accommodated in the actual hearing aid in a very space-saving manner.
  • This object is achieved by the measures specified in the characterizing part of patent claim 1.
  • Refinements and developments of the invention are specified in the subclaims.
  • the invention is based on the knowledge that the microphone of the hearing aid can also be used as a receiving element for the control signals if energy is used as the medium for transmitting the control signals, which the microphone of the hearing aid can convert into electrical signals that are generated by the other signals can be separated and applied to tax organs.
  • miniature microphones such as those used in small hearing aids, also respond to sound that is no longer recordable by human hearing.
  • Microphones that are used in hearing aids usually transmit in the ultrasound range up to 25 kHz with sufficient sensitivity.
  • there is an evaluable resonance in the range of ultrasound between 45 kHz and 50 kHz.
  • control signals can then be transmitted to the hearing aid and brought into effect there.
  • the main one Liche advantage of such a receiving arrangement is that no additional receiving antenna is required for the control signals in the hearing aid.
  • microphones are suitable in the sense of the present invention which have a transmission range up to approx. 25 kHz or which operate at even higher frequencies, e.g. between 45 kHz and 50 kHz, have a pronounced resonance. This resonance occurs in some of the usual miniature microphones because the dimensions of their housing correspond to the wavelength of the ultrasound range.
  • the structure of a remote control receiver that can be installed in a small hearing aid must be designed so that it leaves space for the hearing aid elements in the housing even with the smallest available dimensions.
  • Both the hearing aid amplifier and the circuit of the remote control can be designed as IC modules because the integration represents a possibility of accommodating the required component expenditure in a hearing device housing. It is also important that the required supply of electrical current can only come from a miniature battery, which must also be housed in the housing of the hearing aid. So you can only start from voltages that are in the order of 1.0 to 1.5 V. The current consumption of the control circuit should not exceed 10% of the current for the final stage of the hearing aid, so that a sufficient operating time can still be achieved with one battery charge. This marginal operation can be implemented by using a low-voltage, low-voltage CMOS technology which, in view of the low operating voltage, requires particular effort in the technological manufacturing process of a CMOS circuit.
  • FIG. 1 shows a hearing aid device which comprises a hearing device part 1 and a remote control part 2.
  • the hearing aid part begins in the usual way with the input transducers, i.e. a microphone 3 and an induction pick-up coil 4, which can be connected alternately to the hearing aid circuit via a changeover switch 5.
  • the signal recorded in FIGS. 3 and / or 4 then passes via a controllable amplifier 6, which serves as a presetting for the amplification, via a sound diaphragm 7 to a potentiometer 8, from which it then reaches a driver amplifier 9 and, after this, a power amplifier 10 .
  • the amplified signal in a final transmitter 14 i.e. an earpiece, again converted into sound, which can be fed to the ear of the hearing impaired.
  • Part 2 of the device has a connection 12 to the microphone 3.
  • the signals thus pass from the microphone directly to a high-pass filter 13, which separates the actual control signals from the audio signals, from this to a rectifier 14 and then to a low-pass filter 15, the combination from the rectifier 14 and the low pass 15 represents a demodulator for amplitude-modulated signals in the usual sense, which causes the signals to be in a form suitable for further digital processing.
  • the signal coming from the low pass 15 then comes to a Schmitt trigger 16, in which it is recognized whether the signal is large enough for further processing. In this Schmitt trigger, both the interference clearance point and the range of the transmission channel are defined.
  • the signal is then fed to a shift register 17 for code recognition, from which it reaches a decoder 18; there the signal is decrypted so that it reaches connections 5, connections 5, sound panel 7 or electronic, ie remote-controlled, potentiometer 8 via connections 19, 20, 21 and 22.
  • the lines 19 to 22 also have connections 23, to which a manually operable control 25 can be connected, which is shown in FIG.
  • the manual control shown in Figure 2 has actuation buttons 24.1 to 24.4, with which the debouncing circuits and pulse shapers contained in the button control 25 can be changed so that the connecting plugs 19.1 to 22.1, which can be connected to the sockets of the lines 19 to 22 Corresponding signals arrive at the switch 5, the sound shield 7 or the electronic potentiometer 8, which result in an adjustment of the hearing aid in the desired sense by switching the hearing coil and microphone at the switch 5 and the desired change in the audio frequency response takes place at the sound shield 7.
  • the volume is increased via the line 21 in that control pulses come.
  • the amplification can be reduced via line 22 by means of opposite signals.
  • a keyboard 24.5 to 24.8 is provided for remote control, as in FIG. It also consists of four switches. As in FIG. 2, these switches are connected to a key control 30, in which, by pressing the keys 24.5 to 24.8, signals similar to those when the keys 24.1 to 24.4 in FIG. 2 are generated. These signals are encoded in a subsequent encoder 31 in such a way that a unique digital code word is assigned to each command of keys 24.5 to 24.8. The control signal treated in this way then comes into a parallel-to-serial converter 32, where it is processed for serial output on the transmission link.
  • This signal is then fed to the modulation of a clock frequency control 33, to which the signals of a timer 34, which defines the duration of the logical 0, and the signals of a timer 35, which specifies the duration of the logical 1, also arrive.
  • the signal 10 is processed so that it then arrives at a clock frequency generator 36, where it is modulated with the clock frequency in the ultrasound range.
  • the intensity of the signals is increased in an amplifier 37 so that they are then emitted via a loudspeaker 38 and can act on the microphone 3.
  • the switch 5 can be adjusted via the remote control according to FIG. 3 in such a way that an assigned pulse sequence takes place in the remote control by pressing the button 24.5.
  • a signal is received via the loudspeaker which is received by the microphone 3.
  • the control signal is separated from the sound signal by the selection elements 13 to 16 of the remote control part of the hearing device.
  • the code recognition of 17 then occurs, where it is recognized whether there are no interference pulses were received with.
  • the above-mentioned assigned pulse sequence is then recognized, so that a signal comes to the connection 19. It then causes in switch 5 that the microphone 3 is connected.
  • a switchover to the induction pick-up coil 4 or its switching on takes place when the next similar pulse sequence comes again.
  • the sound screen 7 is actuated via the connection 20 by pressing the button 24.6.
  • Another assigned pulse train is used.
  • the volume in the electronic potentiometer 8 is changed via the connections 21 and 22 by pressing the buttons 24.7 and 24.8.
  • the corresponding control signals are generated by repeating assigned pulse sequences, i.e. in the key control, a generator produces pulses which generate the assigned pulse sequences in the encoder 31 and prepare them for transmission in the parallel-serial converter 32.
  • the clock frequency control 33 and the clock frequency generator 36 operate analogously, as described in the last section.
  • the loudspeaker 38 can leave a signal which gives a signal in the microphone 3 which, after passing through the elements 13 to 16, is checked in the code recognition 17 for incorrect transmission.
  • the decoder 18 is then used to increase the volume on the one hand when the button 24.6 is pressed and on the other hand to decrease the volume of the hearing aid when the button 24.5 is pressed.

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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)
  • Selective Calling Equipment (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

A hearing aid with wireless remote control of at least one of its controllable functions. The microphone of the hearing aird is used as a receiving element for the control signals. Energy (such as ultrasound) which the hearing aid microphone can transform into electrical signals which are separated from the other signals in a remote control part and caused to act upon the control members is used as a control signal transmission medium. Equipping a hearing aid with a remote control according to the invention is suited in particular for miniature hearing aids and for hearing aids insertable into the ear canal.

Description

Die Erfindung betrifft Hörhilfegeräte nach dem Oberbegriff des Anspruches 1. Geräte dieser Art sind etwa bekannt aus der DE-OS 19 38 381.The invention relates to hearing aids according to the preamble of claim 1. Devices of this type are known, for example, from DE-OS 19 38 381.

Hörgeräte sollen möglichst klein sein, damit sie unauffällig getragen werden können. Als besonders günstig haben sich dabei Miniaturgeräte herausgestellt, die am Kopf getragen werden können, insbesondere im Gehörgang. Auch bei diesen Geräten soll die Lautstärke betriebsmäßig veränderbar sein. Hierzu braucht man aber Einstellvorrichtungen, die von außen betätigbar sind, damit das Gerät eingestellt werden kann, wenn es in Funktion ist. Bei den kleinen Geräten steht aber nur wenig Fläche zur Anbringung von Betätigungsgliedern zur Verfügung, die auch beim Tragen des Gerätes zugänglich sind.Hearing aids should be as small as possible so that they can be worn inconspicuously. Miniature devices that can be worn on the head, especially in the ear canal, have proven to be particularly cheap. The volume of these devices should also be changeable in operation. For this you need adjustment devices that can be operated from the outside, so that the device can be set when it is in operation. With the small devices, however, there is only a small area available for attaching actuators, which are also accessible when the device is being carried.

Nach der obengenannten DE-OS 19 38 381 wurde daher ein Hörhilfegerät vorgeschlagen, dessen Bauteile auf zwei Gehäuse verteilt sind, von denen das erste einen Sender enthält, der drahtlos mit dem zweiten verbunden ist, in welchem sich die Teile eines Hörgerätes und ein auf den Sender abgestimmter Empfänger befinden. Dabei war es nicht mehr notwendig, das Gerät so zu gestalten, daß seine Steller von der Außenseite her zugänglich sind. Es war vielmehr möglich, die eigentlichen Stellerelemente an einem Gehäuse anzubringen, welches in der Tasche getragen werden kann, so daß einerseits ohne Rücksicht auf eine besondere Formgebung Steller angebracht werden können und daß andererseits unter direkter Blickkontrolle eingestellt werden kann. Zur Übertragung werden aber Antennen benötigt, die insbesondere bei Miniaturhörgeräten nur in sehr beschränktem Maße vorhandenen Raum beanspruchen.According to the above-mentioned DE-OS 19 38 381, a hearing aid was therefore proposed, the components of which are distributed over two housings, of which the first contains a transmitter which is connected wirelessly to the second, in which the parts of a hearing aid and one on the Transmitter tuned receiver. It was no longer necessary to design the device so that its actuators are accessible from the outside. Rather, it was possible to attach the actual actuator elements to a housing, which can be carried in the pocket, so that actuators are attached on the one hand regardless of a special shape can and that on the other hand can be adjusted under direct eye control. However, antennas are required for the transmission, which, particularly in the case of miniature hearing aids, only take up a very limited amount of space.

Die Erfindung hat sich die Aufgabe gestellt, bei einem Hörhilfegerät nach dem Oberbegriff des Patentanspruchs 1 eine Fernsteuerbarkeit vorzusehen, die im eigentlichen Hörgerät sehr raumsparend untergebracht werden kann. Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Patentanspruchs 1 angegebenen Maßnahmen gelöst. In den Unteransprüchen sind Ausgestaltungen und Weiterbildungen der Erfindung angegeben.The invention has for its object to provide a remote control in a hearing aid according to the preamble of claim 1, which can be accommodated in the actual hearing aid in a very space-saving manner. This object is achieved by the measures specified in the characterizing part of patent claim 1. Refinements and developments of the invention are specified in the subclaims.

Die Erfindung geht von der Erkenntnis aus, daß als Empfangselement für die Steuersignale das Mikrofon der Hörhilfe mit benutzbar ist, wenn als Medium zur Übertragung der Steuersignale solche Energie benutzt wird, die das Mikrofon der Hörhilfe in elektrische Signale umsetzen kann, die von den übrigen Signalen getrennt und auf Steuerorgane zur Einwirkung gebracht werden können. Dies ist möglich, weil Miniaturmikrofone, wie sie in Kleinhörgeräten verwendet werden, auch auf Schall ansprechen, der für das menschliche Gehör nicht mehr aufnehmbar ist. Üblicherweise übertragen Mikrofone, die in Hörgeräten eingesetzt werden, im Ultraschallbereich bis zu 25 kHz mit immer noch ausreichender Empfindlichkeit. Des weiteren liegt bei einigen Typen zwischen 45 kHz und 50 kHz im Bereich des Ultraschalls eine auswertbare Resonanz. Mittels eines in diesem Frequenzbereich arbeitenden Ultraschallsenders, können dann Steuersignale auf das Hörgerät übertragen und dort zur Wirkung gebracht werden. Der hauptsächliche Vorteil einer solchen Empfangsanordnung besteht darin, daß im Hörgerät keine zusätzliche Empfangsantenne für die Steuersignale erforderlich ist.The invention is based on the knowledge that the microphone of the hearing aid can also be used as a receiving element for the control signals if energy is used as the medium for transmitting the control signals, which the microphone of the hearing aid can convert into electrical signals that are generated by the other signals can be separated and applied to tax organs. This is possible because miniature microphones, such as those used in small hearing aids, also respond to sound that is no longer recordable by human hearing. Microphones that are used in hearing aids usually transmit in the ultrasound range up to 25 kHz with sufficient sensitivity. Furthermore, for some types there is an evaluable resonance in the range of ultrasound between 45 kHz and 50 kHz. By means of an ultrasound transmitter operating in this frequency range, control signals can then be transmitted to the hearing aid and brought into effect there. The main one Liche advantage of such a receiving arrangement is that no additional receiving antenna is required for the control signals in the hearing aid.

Zur gleichzeitigen Aufnahme von Schallsignalen und Steuersignalen eignen sich im Sinne vorliegender Erfindung Mikrofone, die einen Übertragungsbereich bis ca. 25 kHz besitzen oder die bei noch höheren Frequenzen, z.B. zwischen 45 kHz und 50 kHz,eine ausgeprägte Resonanz besitzen. Diese Resonanz entsteht in einigen der üblichen Miniaturmikrofone dadurch, daß die Abmessungen ihres Gehäuses der Wellenlänge des Ultraschallbereichs entsprechen.For the simultaneous recording of sound signals and control signals, microphones are suitable in the sense of the present invention which have a transmission range up to approx. 25 kHz or which operate at even higher frequencies, e.g. between 45 kHz and 50 kHz, have a pronounced resonance. This resonance occurs in some of the usual miniature microphones because the dimensions of their housing correspond to the wavelength of the ultrasound range.

Der Aufbau eines Fernsteuerungsempfängers, der in ein Kleinhörgerät eingebaut werden kann, muß so gestaltet sein, daß er auch bei kleinsten zur Verfügung stehenden Ausmaßen für die Hörgeräteelemente im Gehäuse Platz läßt. Sowohl der Hörgeräteverstärker als auch die Schaltung der Fernsteuerung sind als IC-Bausteine auslegbar, weil die Integration eine Möglichkeit darstellt, den benötigten Bauteileaufwand in einem Hörgerätegehäuse unterzubringen. Wichtig ist auch, daß die erforderliche Versorgung mit elektrischem Strom nur aus einer Miniaturbatterie erfolgen kann, die ebenfalls im Gehäuse des Hörgerätes untergebracht werden muß. Man kann also nur von Spannungen ausgehen, die in der Größenordnung von 1,0 bis 1,5 V liegen. Die Stromaufnahme der Steuerungsschaltung sollte 10 % des Stromes für die Endstufe des Hörgerätes nicht überschreiten, damit man mit einer Batterieladung noch hinreichende Betriebsdauer erreichen kann. Diese Randbedienung ist realisierbar, indem man eine stromsparende Niedervolt-CMOS-Technologie anwendet, die hinsichtlich der niedrigen Betriebsspannung besonderen Aufwand im technologischen Herstellungsprozeß einer CMOS-Schaltung erfordert.The structure of a remote control receiver that can be installed in a small hearing aid must be designed so that it leaves space for the hearing aid elements in the housing even with the smallest available dimensions. Both the hearing aid amplifier and the circuit of the remote control can be designed as IC modules because the integration represents a possibility of accommodating the required component expenditure in a hearing device housing. It is also important that the required supply of electrical current can only come from a miniature battery, which must also be housed in the housing of the hearing aid. So you can only start from voltages that are in the order of 1.0 to 1.5 V. The current consumption of the control circuit should not exceed 10% of the current for the final stage of the hearing aid, so that a sufficient operating time can still be achieved with one battery charge. This marginal operation can be implemented by using a low-voltage, low-voltage CMOS technology which, in view of the low operating voltage, requires particular effort in the technological manufacturing process of a CMOS circuit.

Weitere Einzelheiten und Vorteile der Erfindung werden nachfolgend anhand der in den Figuren dargestellten Ausführungsbeispiele weiter erläutert.

  • In der Figur 1 ist ein erfindungsgemäß aufgebautes Hörhilfegerät schematisch dargestellt,
  • in der Figur 2 ein am Gerät ansetzbares Handbedienungsteil und
  • in der Figur 3 eine Sendeeinrichtung zur Fernsteuerung des Geräts nach Figur 1.
Further details and advantages of the invention are further explained below using the exemplary embodiments shown in the figures.
  • A hearing aid device constructed according to the invention is shown schematically in FIG.
  • in FIG. 2 a hand control part that can be attached to the device and
  • 3 shows a transmission device for remote control of the device according to FIG. 1.

In der Figur 1 ist ein Hörhilfegerät gezeichnet, das einen Hörgeräteteil 1 und einen Fernsteuerteil 2 umfaßt. Der Hörgeräteteil beginnt in üblicher Weise mit den Eingangswandlern, d.h. einem Mikrofon 3 und einer Induktionsaufnahmespule 4, die wechselweise an die Hörgeräteschaltung über einen Wechselschalter 5 anschließbar sind. Das in 3 und/oder 4 aufgenommene Signal gelangt dann über einen regulierbaren Verstärker 6, der als Voreinsteller für die Verstärkung dient, über eine Klangblende 7 zu einem Potentiometer 8, von dem es dann zu einem Treiberverstärker 9 und nach diesem zu einem Endstufenverstärker 10 gelangt. Schließlich wird das verstärkte Signal in einem Endübertrager 14 d.h. einem Hörer, wieder in Schall umgesetzt, der dem Ohr des Schwerhörigen zugeführt werden kann.1 shows a hearing aid device which comprises a hearing device part 1 and a remote control part 2. The hearing aid part begins in the usual way with the input transducers, i.e. a microphone 3 and an induction pick-up coil 4, which can be connected alternately to the hearing aid circuit via a changeover switch 5. The signal recorded in FIGS. 3 and / or 4 then passes via a controllable amplifier 6, which serves as a presetting for the amplification, via a sound diaphragm 7 to a potentiometer 8, from which it then reaches a driver amplifier 9 and, after this, a power amplifier 10 . Finally, the amplified signal in a final transmitter 14 i.e. an earpiece, again converted into sound, which can be fed to the ear of the hearing impaired.

Der Teil 2 des Gerätes hat eine Verbindung 12 zum Mikrofon 3. Die Signale gelangen so vom Mikrofon direkt auf einen Hochpaß 13, der die eigentlichen Steuersignale von den Audiosignalen trennt, von diesem auf einen Gleichrichter 14 und anschließend auf einen Tiefpaß 15, wobei die Kombination aus dem Gleichrichter 14 und dem Tiefpaß 15 einen Demodulator für amplitudenmodulierte Signale im üblichen Sinn darstellt, der bewirkt, daß die Signale in einer zur digitalen Weiterverarbeitung geeigneten Form vorliegen. Das aus dem Tiefpaß 15 kommende Signal kommt dann zu einem Schmitt-Trigger 16, in welchem erkannt wird, ob das Signal für die weitere Verarbeitung groß genug ist. In diesem Schmitt-Trigger wird sowohl die Störbefreiungsstelle als auch die Reichweite des Übertragungskanals festgelegt. Anschließend wird das Signal einem Schieberegister 17 zur Code-Erkennung zugeführt, von dem es auf einen Decoder 18 gelangt; dort wird das Signal so entschlüsselt, daß es über Verbindungen 19, 20, 21 und 22 zum Schalter 5 oder zu einer Klangblende 7 bzw. elektronischen, d.h. fernsteuerbaren, Potentiometer 8 gelangt. Die Leitungen 19 bis 22 weisen außerdem noch Anschlüsse 23 auf, an welche eine manuell betätigbare Steuerung 25 angesteckt werden kann, die in Figur 2 dargestellt ist.Part 2 of the device has a connection 12 to the microphone 3. The signals thus pass from the microphone directly to a high-pass filter 13, which separates the actual control signals from the audio signals, from this to a rectifier 14 and then to a low-pass filter 15, the combination from the rectifier 14 and the low pass 15 represents a demodulator for amplitude-modulated signals in the usual sense, which causes the signals to be in a form suitable for further digital processing. The signal coming from the low pass 15 then comes to a Schmitt trigger 16, in which it is recognized whether the signal is large enough for further processing. In this Schmitt trigger, both the interference clearance point and the range of the transmission channel are defined. The signal is then fed to a shift register 17 for code recognition, from which it reaches a decoder 18; there the signal is decrypted so that it reaches connections 5, connections 5, sound panel 7 or electronic, ie remote-controlled, potentiometer 8 via connections 19, 20, 21 and 22. The lines 19 to 22 also have connections 23, to which a manually operable control 25 can be connected, which is shown in FIG.

Die in Figur 2 dargestellte manuelle Steuerung weist Betätigungstasten 24.1 bis 24.4 auf, mit welchen die in der Tastensteuerung 25 enthaltenden Entprellschaltungen und Impulsformer dahingehend zu verändern gestattet ist, daß durch die Verbindungsstecker 19.1 bis 22.1, die mit den Buchsen der Leitungen 19 bis 22 verbindbar sind, entsprechende Signale auf den Schalter 5, die Klangblende 7 oder das elektronische Potentiometer 8 gelangen, die eine Verstellung des Hörgerätes im gewünschten Sinne ergeben, indem beim Schalter 5 Hörspule und Mikrofon umgeschaltet werden und bei der Klangblende 7 die gewünschte Veränderung des Audiofrequenzgangs erfolgt.The manual control shown in Figure 2 has actuation buttons 24.1 to 24.4, with which the debouncing circuits and pulse shapers contained in the button control 25 can be changed so that the connecting plugs 19.1 to 22.1, which can be connected to the sockets of the lines 19 to 22 Corresponding signals arrive at the switch 5, the sound shield 7 or the electronic potentiometer 8, which result in an adjustment of the hearing aid in the desired sense by switching the hearing coil and microphone at the switch 5 and the desired change in the audio frequency response takes place at the sound shield 7.

Beim elektronischen Potentiometer 8 erfolgt eine Erhöhung der Lautstärke über die Leitung 21, indem Steuerimpulse kommen. Über die Leitung 22 kann durch gegensinnige Signale die Verstärkung verringert werden.In the case of the electronic potentiometer 8, the volume is increased via the line 21 in that control pulses come. The amplification can be reduced via line 22 by means of opposite signals.

Zur Fernsteuerung ist gemäß Figur 3, wie in Figur 2, eine Tastatur 24.5 bis 24.8 vorgesehen. Sie besteht ebenfalls aus vier Schaltern. Wie in Figur 2 sind diese Schalter mit einer Tastensteuerung 30 verbunden, in welcher durch Betätigung der Tasten 24.5 bis 24.8 ähnliche Signale erzeugt werden wie bei Betätigung der Tasten 24.1 bis 24.4 in Figur 2. Diese Signale werden in einem anschließenden Codierer 31 so verschlüsselt, daß jedem Befehl der Tasten 24.5 bis 24.8 ein eindeutiges digitales Codewort zugeordnet wird. Das so behandelte Steuersignal kommt dann in einen Parallel-Seriell-Wandler 32, wo es für die serielle Ausgabe auf die Übertragungsstrecke aufbereitet wird. Dieses Signal wird anschließend zur Modulation einer Taktfrequenzsteuerung 33 zugeführt, auf welche auch die Signale eines Zeitgebers 34, der die Zeitdauer der logischen 0 festlegt und die Signale eines Zeitgebers 35, der die Zeitdauer der logischen 1 festlegt, gelangen. Dadurch wird das Signal 10 aufbereitet, daß es dann auf einen Taktfrequenzgenerator 36 gelangt, wo es mit der Taktfrequenz im Ultraschallbereich moduliert wird. Schließlich erfolgt noch in einem Verstärker 37 eine Heraufsetzung der Intensität der Signale, damit sie dann über einen Lautsprecher 38 abgegeben werden und auf das Mikrofon 3 einwirken können.As in FIG. 2, a keyboard 24.5 to 24.8 is provided for remote control, as in FIG. It also consists of four switches. As in FIG. 2, these switches are connected to a key control 30, in which, by pressing the keys 24.5 to 24.8, signals similar to those when the keys 24.1 to 24.4 in FIG. 2 are generated. These signals are encoded in a subsequent encoder 31 in such a way that a unique digital code word is assigned to each command of keys 24.5 to 24.8. The control signal treated in this way then comes into a parallel-to-serial converter 32, where it is processed for serial output on the transmission link. This signal is then fed to the modulation of a clock frequency control 33, to which the signals of a timer 34, which defines the duration of the logical 0, and the signals of a timer 35, which specifies the duration of the logical 1, also arrive. As a result, the signal 10 is processed so that it then arrives at a clock frequency generator 36, where it is modulated with the clock frequency in the ultrasound range. Finally, the intensity of the signals is increased in an amplifier 37 so that they are then emitted via a loudspeaker 38 and can act on the microphone 3.

Die Verstellung des Schalters 5 kann über die Fernsteuerung nach Figur 3 derart erfolgen, daß durch Drücken der Taste 24.5 in der Fernsteuerung eine zugeordnete Impulsfolge erfolgt. Über den Lautsprecher wird so ein Signal erhalten, welches vom Mikrofon 3 empfangen wird. Durch die Selektierungselemente 13 bis 16 des Fernsteuerungsteils des Hörgerätes wird das Steuersignal vom Schallsignal getrennt. Es gelangt dann zur Code-Erkennung von 17, wo erkannt wird, ob keine Störimpulse mit empfangen wurden. Im Decoder 18 wird dann die oben erwähnte zugeordnete Impulsfolge wiedererkannt, so daß ein Signal auf den Anschluß 19 kommt. Es bewirkt dann im Schalter 5, daß das Mikrofon 3 angeschlossen wird. Eine Umschaltung auf die Induktionsaufnahmespule 4 bzw. ihre Einschaltung erfolgt, wenn die nächste gleichartige Impulsfolge wieder kommt.The switch 5 can be adjusted via the remote control according to FIG. 3 in such a way that an assigned pulse sequence takes place in the remote control by pressing the button 24.5. A signal is received via the loudspeaker which is received by the microphone 3. The control signal is separated from the sound signal by the selection elements 13 to 16 of the remote control part of the hearing device. The code recognition of 17 then occurs, where it is recognized whether there are no interference pulses were received with. In the decoder 18, the above-mentioned assigned pulse sequence is then recognized, so that a signal comes to the connection 19. It then causes in switch 5 that the microphone 3 is connected. A switchover to the induction pick-up coil 4 or its switching on takes place when the next similar pulse sequence comes again.

In ähnlichem Sinne erfolgt eine Betätigung der Klangblende 7 über den Anschluß 20 durch Betätigung der Taste 24.6. Dabei wird eine andere zugeordnete Impulsfolge verwendet.In a similar sense, the sound screen 7 is actuated via the connection 20 by pressing the button 24.6. Another assigned pulse train is used.

Die Veränderung der Lautstärke im elektronischen Potentiometer 8 erfolgt über die Anschlüsse 21 und 22 durch Betätigung der Tasten 24.7 und 24.8. Die entsprechenden Steuersignale werden dabei erzeugt, indem jeweils zugeordnete Impulsfolgen wiederholt werden, d.h. in der Tastensteuerung stellt ein Generator Impulse her, die im Codierer 31 die zugeordneten Impulsfolgen erzeugen und im Parallel-Seriell-Wandler 32 für die Aussendung aufbereiten. Die Taktfrequenzsteuerung 33 und der Taktfrequenzgenerator 36 arbeiten analog, wie im letzten Abschnitt beschrieben. So kann nach der Verstärkung in 37 der Lautsprecher 38 ein Signal verlassen, welches im Mikrofon 3 ein Signal ergibt, welches nach Passieren der Elemente 13 bis 16 in der Code-Erkennung 17 auf Fehlübertragung überprüft wird. Über den Decoder 18 wird dann einerseits bei Betätigung des Tasters 24.6 eine Erhöhung der Lautstärke und andererseits bei Betätigung des Tasters 24.5 eine Herabsetzung der Lautstärke des Hörgerätes erreicht.The volume in the electronic potentiometer 8 is changed via the connections 21 and 22 by pressing the buttons 24.7 and 24.8. The corresponding control signals are generated by repeating assigned pulse sequences, i.e. in the key control, a generator produces pulses which generate the assigned pulse sequences in the encoder 31 and prepare them for transmission in the parallel-serial converter 32. The clock frequency control 33 and the clock frequency generator 36 operate analogously, as described in the last section. Thus, after amplification in 37, the loudspeaker 38 can leave a signal which gives a signal in the microphone 3 which, after passing through the elements 13 to 16, is checked in the code recognition 17 for incorrect transmission. The decoder 18 is then used to increase the volume on the one hand when the button 24.6 is pressed and on the other hand to decrease the volume of the hearing aid when the button 24.5 is pressed.

Claims (5)

1. Hörhilfegerät mit drahtloser Fernsteuerung wenigstens von Teilen seiner regelbaren Funktionen, wobei in einem am Kopf tragbaren Gehäuse sowohl die Elemente der Hörhilfe als auch diejenigen zur Regelung seiner Funktionen und ein Empfänger für Signale zur Fernsteuerung dieser Funktionen untergebracht sind, dadurch gekennzeichnet , daß als Empfangselement für die Steuersignale das Mikrofon der Hörhilfe mit verwendet ist und daß als Medium zur Übertragung der Steuersignale solche Energie benutzt ist, die das Mikrofon der Hörhilfe in elektrische Signale umsetzen kann, die von den übrigen Signalen getrennt auf Steuerorgane zur Einwirkung gebracht werden.1. Hearing aid with wireless remote control of at least parts of its controllable functions, wherein both the elements of the hearing aid and those for regulating its functions and a receiver for signals for remote control of these functions are housed in a portable housing on the head, characterized in that as a receiving element the microphone of the hearing aid is also used for the control signals and that energy is used as the medium for transmitting the control signals, which the microphone of the hearing aid can convert into electrical signals which are brought into effect separately from the other signals on control elements. 2. Hörhilfegerät nach Anspruch 1, dadurch gekennzeichnet , daß das Medium zur Übertragung der Steuersignale unhörbarer Schall, insbesondere Ultraschall, ist.2. Hearing aid according to claim 1, characterized in that the medium for transmitting the control signals is inaudible sound, in particular ultrasound. 3. Hörhilfegerät nach Anspruch 2, dadurch gekennzeichnet , daß das Steuergerät einen Ultraschallerzeuger enthält, der über eine Tastatur Ultraschallsteuersignale über einen Lautsprecher abgibt, und daß im Hörhilfegerät die Ableitung der vom Mikrofon aufgenommenen Signale in zwei Äste aufgespalten ist, von denen der eine ins Hörhilfegerät und der andere über ein alle Signale außer den Ultraschallsignalen sperrendes Filter zum Steuerteil des Hörhilfegerätes führt.3. Hearing aid according to claim 2, characterized in that the control unit contains an ultrasound generator which emits ultrasound control signals via a loudspeaker via a keyboard, and in that in the hearing aid the derivation of the signals picked up by the microphone is split into two branches, one of which is in the hearing aid and the other leads to the control part of the hearing aid device via a filter blocking all signals except the ultrasound signals. 4. Hörhilfegerät nach Anspruch 2, dadurch gekennzeichnet , daß das Medium Ultraschall im Bereich von 25 bis 50 kHz ist.4. Hearing aid according to claim 2, characterized in that the medium is ultrasound in the range of 25 to 50 kHz. 5. Hörhilfegerät nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens die im Hörgerät enthaltene Steuerschaltung als integrierter Baustein ausgebildet ist.5. Hearing aid according to claim 1, characterized in that at least the control circuit contained in the hearing aid is designed as an integrated module.
EP85110215A 1984-08-28 1985-08-14 Hearing aid device Expired - Lifetime EP0175909B1 (en)

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DE19843431584 DE3431584A1 (en) 1984-08-28 1984-08-28 HOERHILFEGERAET

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918737A (en) * 1987-07-07 1990-04-17 Siemens Aktiengesellschaft Hearing aid with wireless remote control
EP0298323A1 (en) * 1987-07-07 1989-01-11 Siemens Aktiengesellschaft Hearing aid apparatus
EP0335542A3 (en) * 1988-03-30 1991-09-11 3M Hearing Health Aktiebolag Auditory prosthesis with datalogging capability
EP0335542A2 (en) * 1988-03-30 1989-10-04 3M Hearing Health Aktiebolag Auditory prosthesis with datalogging capability
EP0340594A1 (en) * 1988-05-06 1989-11-08 Siemens Audiologische Technik GmbH Hearing aid device with wireless remote control
WO1991012783A1 (en) * 1990-03-02 1991-09-05 Roger Tari Heraing assistance device comprising a self-contained direct bone conduction hearing aid implant
FR2659009A1 (en) * 1990-03-02 1991-09-06 Tari Roger HEARING AID DEVICE COMPRISING AN IMPLANTED AND AUTONOMOUS HEARING AID WITH DIRECT BONE CONDUCTION.
EP0480097A1 (en) * 1990-10-12 1992-04-15 Siemens Audiologische Technik GmbH Hearing-aid with data memory
US5210803A (en) * 1990-10-12 1993-05-11 Siemens Aktiengesellschaft Hearing aid having a data storage
DE4419901C2 (en) * 1994-06-07 2000-09-14 Siemens Audiologische Technik Hearing aid
EP0828404A2 (en) * 1996-09-06 1998-03-11 Türk + Türk Electronic GmbH Hearing aid and control device for programming the hearing aid
EP0828404A3 (en) * 1996-09-06 2003-05-14 Türk + Türk Electronic GmbH Hearing aid and control device for programming the hearing aid
WO1999039547A1 (en) * 1998-01-28 1999-08-05 Richard Obler Method for stimulating a nerve with a variable stimulating current and a device for generating a variable stimulating current
EP1196008A3 (en) * 2000-10-04 2006-07-12 Sonionmicrotronic Nederland B.V. Integrated telecoil amplifier with signal processing

Also Published As

Publication number Publication date
DE3585479D1 (en) 1992-04-09
DK388185A (en) 1986-03-01
US4845755A (en) 1989-07-04
JPS6162300A (en) 1986-03-31
DK167262B1 (en) 1993-09-27
ATE73288T1 (en) 1992-03-15
EP0175909B1 (en) 1992-03-04
JPH0642760B2 (en) 1994-06-01
DE3431584A1 (en) 1986-03-13
DK388185D0 (en) 1985-08-27

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