EP0131766A1 - Hearing aid - Google Patents

Hearing aid Download PDF

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Publication number
EP0131766A1
EP0131766A1 EP84106874A EP84106874A EP0131766A1 EP 0131766 A1 EP0131766 A1 EP 0131766A1 EP 84106874 A EP84106874 A EP 84106874A EP 84106874 A EP84106874 A EP 84106874A EP 0131766 A1 EP0131766 A1 EP 0131766A1
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EP
European Patent Office
Prior art keywords
hearing aid
microphone
connection
amplifier
contacts
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Granted
Application number
EP84106874A
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German (de)
French (fr)
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EP0131766B2 (en
EP0131766B1 (en
Inventor
Friedrich Dipl.-Ing. Harless
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Siemens AG
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Siemens AG
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Application filed by Siemens AG filed Critical Siemens AG
Priority to AT84106874T priority Critical patent/ATE25481T1/en
Publication of EP0131766A1 publication Critical patent/EP0131766A1/en
Application granted granted Critical
Publication of EP0131766B1 publication Critical patent/EP0131766B1/en
Publication of EP0131766B2 publication Critical patent/EP0131766B2/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
    • H04R25/556—External connectors, e.g. plugs or modules

Definitions

  • the invention relates to a hearing aid according to the preamble of claim 1.
  • a device of this type is described, for example, in US Pat. No. 4,137,431.
  • the known connections for electrical signals are used in particular for introducing signals from an external microphone, for example one that is located in a telephone receiver or that is part of an ear training device.
  • an external microphone for example one that is located in a telephone receiver or that is part of an ear training device.
  • sound signals from other signal generators such as radio and television receivers, can also be introduced directly into hearing aids.
  • the invention has for its object to provide a hearing aid device according to claim 1, in which the structure of the space amplifier can be at least significantly simplified. This object is achieved in the hearing aid device mentioned at the outset with the features of claim 1.
  • the space amplifier previously required in hearing training devices can be significantly simplified when using hearing devices with a connection for deriving signals from the microphone (audio output). Except for a microphone amplifier with student talk button, all other parts that were previously necessary can be omitted. In addition to adjusting the different microphone levels, all other functions of the usual place amplifiers can be performed by the hearing aid. Furthermore, no headset (combination of handset and microphone) is required at the student seats.
  • the microphone amplifier can also be replaced by the hearing aid amplifier.
  • the student speak button is taken over to switch on the respective hearing aid microphone from the school system into the connecting line to the hearing aid, only the actual connecting coupling remains of the known equipment of the student places.
  • FIG. 1 denotes a hearing aid, the housing 2 of which contains the individual parts of the electrical structure and is worn over the upper attachment of an ear 4 by means of a hook 3.
  • This device functions in the usual way by amplifying sound that enters through an opening 5 via a circuit as shown in FIG becomes.
  • signals to be reproduced can also be supplied to the device 1 via a connection 10. These signals are recorded, for example, in a microphone 47 (FIG. 5), which is part of an ear training system.
  • the supply takes place via a line 11.
  • the device 1 has a connecting piece 12 (FIG. 3), on which contacts 13, 14 and 15 are located.
  • the contacts 13 to 15 and 13.1 and 14.1 are connected to lines 16, 17 and 18 and 16.2 and 17.2 in the interior of the device which represent the actual connections to the corresponding parts 20 to 24 of the circuit of the hearing device 1.
  • the contact 15 represents a common line for signals that are to reach the receiver 20 and that are to be derived from the microphone 21.
  • the actual signal lines represent the line 16 for the signal line, ie the audio input, the line 17 and for the sound signal line, ie the audio output.
  • the hearing aid 1 comprising a microphone 21, an amplifier 22 with a preamplifier part 22.1, a volume control 23 as well as a power amplifier part 23.1 and a receiver 20 is per se of a conventional design, the energy being supplied from a current source 24, for example a small battery.
  • a signal recorded in the microphone 21 can be taken from the hearing device 1 between the contacts 13 and 15 or 13.1 and 15 depending on the wiring.
  • the acceptance before or after the preamplifier 22.1 can be advantageous, for example in order to prevent crosstalk from occurring or to adapt the output power to different cable capacities of the system.
  • the amplifier 22 operates as a linear amplifier without influencing the frequency and generally without influencing the dynamics.
  • the signal between contacts 13 and 15 can be picked up from the entire amplifier or 13.1 and 15 from part of it, it is also possible to route the signal through the entire amplifier 22 by connecting between 14 and 15 by connecting between 14.1 and 15 only via the volume control 23 and the power amplifier 22.2.
  • the choice of the connection can be adapted to the existing conditions.
  • 30 denotes the teacher station of an ear training system.
  • student stations 31 to 34 are connected.
  • Hearing aid devices 35 to 37 which are designed according to the invention, are located at the school stations 31 to 33.
  • Pupil 34 is vacant.
  • the student places 31 to 34 each contain a place amplifier 38 to 41 and a push button switch that serves as a talk button 42 to 45.
  • a corresponding key 46 is also accommodated between the teacher microphone 47 and the teacher position amplifier 48.
  • the connecting lines 11 between the student places 31 to 34 and the respective hearing aids 1 represent detachable connecting lines.
  • the connecting lines 16 to 18 of each hearing device 1 can be connected via the three wires 16.1, 17.1 and 18.1 of line 11 are connected via connection 10 to student places 31 to 34 and teacher place 30.
  • the function of the training device does not differ from that of conventional training devices.
  • the main difference is that instead of the headphones and microphone sets which are generally used, hearing aids 1 designed according to the invention are used.
  • the hearing can be optimally designed by individually adapting the devices 1 and, on the other hand, no additional microphones need to be set up because the students' microphones 21 and the teacher microphone 47 are sufficient for using the system. If one of the participants wants to speak a contribution into the system, he presses his talk button and closes one of the switches 42 to 46. Then the respective microphone 21 or 47 is activated via ent speaking amplifier 22 or 38 to 41 or 48 effective so that a signal comes via line 18.1 to the respective listener 20 of a student hearing aid 1.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Cookers (AREA)
  • Packages (AREA)
  • Frying-Pans Or Fryers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

A hearing aid apparatus has a housing containing components such as a microphone, an amplifier and an earphone,and to which a terminal having contacts for connection to a signal line is applied. The terminal also has contacts for derivation of signals from the microphone so that a conventionally operating hearing aid is achieved which also contains an audio output in addition to an audio input. The hearing aid apparatus is thus particularly suitable for use as a talk/listen set in aural training systems.

Description

Die Erfindung betrifft ein Hörhilfegerät nach dem Oberbegriff des Patentanspruchs 1. Ein Gerät dieser Art ist etwa in der US-PS 41 37 431 beschrieben.The invention relates to a hearing aid according to the preamble of claim 1. A device of this type is described, for example, in US Pat. No. 4,137,431.

Bei Hörhilfegeräten werden die bekannten Anschlüsse für elektrische Signale insbesondere verwendet zur Einführung von Signalen aus einem externen Mikrofon, etwa einem solchen, das sich in einem Telefonhörer befindet oder welches Teil eines Gehörschulungsgerätes ist. Mit den Zuleitungen können auch Tonsignale aus anderen Signalerzeugern, wie Radio- und Fernsehempfängern, direkt in Hörhilfegeräte eingeleitet werden.In the case of hearing aids, the known connections for electrical signals are used in particular for introducing signals from an external microphone, for example one that is located in a telephone receiver or that is part of an ear training device. With the feed lines, sound signals from other signal generators, such as radio and television receivers, can also be introduced directly into hearing aids.

Etwa beim Anschluß von Hörhilfegeräten an ein Gehörschulungsgerät ist es aber immer noch notwendig, ein gesondertes Mikrofon zur Aufnahme der Sprache der Schüler aufzustellen. Dies setzt aber für die Schülerplätze sogenannte Platzverstärker voraus. Dadurch wird aber ein Aufbau erhalten, der aufwendig ist und für jeden Schülerplatz vorgesehen werden muß.For example, when connecting hearing aids to a hearing training device, it is still necessary to set up a separate microphone to record the language of the students. However, this requires so-called space amplifiers for the student seats. This way, however, a structure is obtained which is complex and must be provided for each student place.

Die Erfindung hat sich die Aufgabe gestellt, bei einem Hörhilfegerät nach Anspruch 1 eine Ausgestaltung vorzusehen, bei welcher der Aufbau der Platzverstärker mindestens wesentlich vereinfacht werden kann. Diese Aufgabe wird bei dem eingangs genannten Hörhilfegerät mit den Merkmalen des Anspruchs 1 gelöst.The invention has for its object to provide a hearing aid device according to claim 1, in which the structure of the space amplifier can be at least significantly simplified. This object is achieved in the hearing aid device mentioned at the outset with the features of claim 1.

Der bisher in Hörschulungsgeräten, die auch Klassenverstärkeranlagen genannt werden, notwendige Platzverstärker kann bei Verwendung von Hörgeräten mit einem Anschluß zur Ableitung von Signalen vom Mikrofon (Audioausgang) wesentlich vereinfacht werden. Bis auf einen Mikrofonverstärker mit Schülersprechtaste können dabei alle übrigen, bisher notwendigen Teile weggelassen werden. Außer der Anpassung der unterschiedlichen Mikrofonpegel können alle anderen Funktionen der sonst üblichen Platzverstärker vom Hörgerät übernommen werden. Überdies ist keine Hörsprechgarnitur (Kombination von Hörer und Mikrofon) an den Schülerplätzen notwendig.The space amplifier previously required in hearing training devices, which are also called class amplifier systems, can be significantly simplified when using hearing devices with a connection for deriving signals from the microphone (audio output). Except for a microphone amplifier with student talk button, all other parts that were previously necessary can be omitted. In addition to adjusting the different microphone levels, all other functions of the usual place amplifiers can be performed by the hearing aid. Furthermore, no headset (combination of handset and microphone) is required at the student seats.

Je nach Aufbau der benutzten Hörhilfegeräte kann auch noch der Mikrofonverstärker durch den Hörgeräteverstärker ersetzt werden. Bei Übernahme der Schülersprechtaste zum Einschalten des jeweiligen Hörgerätemikrofons von der Schulanlage in die Anschlußleitung zum Hörgerät verbleibt dann von der bekannten Ausstattung der Schülerplätze nur noch die eigentliche Anschlußkupplung. Somit ist nach der Erfindung eine wesentliche Reduzierung des bisherigen Aufwandes möglich.Depending on the structure of the hearing aid used, the microphone amplifier can also be replaced by the hearing aid amplifier. When the student speak button is taken over to switch on the respective hearing aid microphone from the school system into the connecting line to the hearing aid, only the actual connecting coupling remains of the known equipment of the student places. Thus, according to the invention, a substantial reduction in the previous effort is possible.

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

  • In der Figur 1 ist die Gesamtansicht eines hinter dem Ohr zu tragenden, erfindungsgemäß ausgestatteten Hörhilfegerätes dargestellt,
  • in der Figur 2 ein Ausschnitt aus dem Gehäuseteil des Gerätes, an welchem die Anschlußkontakte angebracht sind,
  • in der Figur 3 das Anschlußkontaktstück,
  • in der Figur 4 in einem Schaltungsbeispiel die Anordnung der Anschlußkontakte und
  • in der Figur 5 in schematischen Blockschaltbildern die Benutzung von Geräten, die gemäß den vorhergehenden Figuren ausgestaltet sind.
Further details and advantages of the invention are explained below using the exemplary embodiments shown in the figures.
  • FIG. 1 shows the overall view of a hearing aid device to be worn behind the ear and equipped according to the invention,
  • 2 shows a section of the housing part of the device to which the connection contacts are attached,
  • 3 shows the connection contact piece,
  • in Figure 4 in a circuit example, the arrangement of the contacts and
  • 5 shows in schematic block diagrams the use of devices which are designed according to the preceding figures.

In der Figur 1 ist mit 1 ein Hörhilfegerät bezeichnet, dessen Gehäuse 2 die Einzelteile des elektrischen Aufbaus enthält und mittels eines Hakens 3 über den oberen Ansatz eines Ohres 4 getragen wird. Dieses Gerät funktioniert in üblicher Weise, indem Schall, welcher durch eine Öffnung 5 eintritt, über eine Schaltung, wie sie in Figur 4 gezeichnet ist, verstärkt und über einen Schalleitungsschlauch 6, der mittels einer Ohrolive im Ohrkanal verankert ist, dem Gehör des Trägers zugeführt wird.In FIG. 1, 1 denotes a hearing aid, the housing 2 of which contains the individual parts of the electrical structure and is worn over the upper attachment of an ear 4 by means of a hook 3. This device functions in the usual way by amplifying sound that enters through an opening 5 via a circuit as shown in FIG becomes.

Außer über die Öffnung 5 können wiederzugebende Signale dem Gerät 1 auch über einen Anschluß 10 zugeführt werden. Diese Signale werden etwa in einem Mikrofon 47 (Fig. 5) aufgenommen, das Teil einer Gehörschulungsanlage ist. Die Zuführung erfolgt über eine Leitung 11. Für den eigentlichen Anschluß weist das Gerät 1 ein Verbindungsstück 12 (Fig. 3) auf, an welchem sich Kontakte 13, 14 und 15 befinden. An die Kontakte 13 bis 15 sowie 13.1 und 14.1 schließen sich im Inneren des Gerätes 1 Leitungen 16, 17 und 18 sowie 16.2 und 17.2 an, welche die eigentlichen Verbindungen mit den entsprechenden Teilen 20 bis 24 der Schaltung des Hörgerätes 1 darstellen. Der Kontakt 15 stellt dabei eine gemeinsame Leitung für Signale dar, die zum Hörer 20 gelangen sollen und die vom Mikrofon 21 abgeleitet werden sollen. Die eigentlichen Signalleitungen stellen für die Signalzuleitung, d.h. den Audioeingang, die Leitung 17 und für die Schallsignalableitung, d.h. den Audioausgang, die Leitung 16 dar.In addition to the opening 5, signals to be reproduced can also be supplied to the device 1 via a connection 10. These signals are recorded, for example, in a microphone 47 (FIG. 5), which is part of an ear training system. The supply takes place via a line 11. For the actual connection, the device 1 has a connecting piece 12 (FIG. 3), on which contacts 13, 14 and 15 are located. The contacts 13 to 15 and 13.1 and 14.1 are connected to lines 16, 17 and 18 and 16.2 and 17.2 in the interior of the device which represent the actual connections to the corresponding parts 20 to 24 of the circuit of the hearing device 1. The contact 15 represents a common line for signals that are to reach the receiver 20 and that are to be derived from the microphone 21. The actual signal lines represent the line 16 for the signal line, ie the audio input, the line 17 and for the sound signal line, ie the audio output.

Das ein Mikrofon 21, einen Verstärker 22 mit einem Vorverstärkerteil 22.1, einem Lautstärkeregler 23 sowie einem Endverstärkerteil 23.1 und einen Hörer 20 umfassende Hörhilfegerät 1 ist an sich von üblicher Bauart, wobei die Energie aus einer Stromquelle 24, etwa einer Kleinbatterie, geliefert wird. Ein im Mikrofon 21 aufgenommenes Signal kann zwischen den Kontakten 13 und 15 oder 13.1 und 15 je nach Beschaltung vom Hörgerät 1 abgenommen werden. Die Abnahme vor oder hinter dem Vorverstärker 22.1 kann je nach Anwendungsfall vorteilhaft sein, etwa um auftretendes Übersprechen zu verhindern oder die Ausgangsleistung an unterschiedliche Kabelkapazitäten der Anlage anzupassen. Der Verstärker 22 arbeitet als linearer Verstärker ohne Frequenzbeeinflussung und im allgemeinen ohne Beeinflussung der Dynamik.The hearing aid 1 comprising a microphone 21, an amplifier 22 with a preamplifier part 22.1, a volume control 23 as well as a power amplifier part 23.1 and a receiver 20 is per se of a conventional design, the energy being supplied from a current source 24, for example a small battery. A signal recorded in the microphone 21 can be taken from the hearing device 1 between the contacts 13 and 15 or 13.1 and 15 depending on the wiring. Depending on the application, the acceptance before or after the preamplifier 22.1 can be advantageous, for example in order to prevent crosstalk from occurring or to adapt the output power to different cable capacities of the system. The amplifier 22 operates as a linear amplifier without influencing the frequency and generally without influencing the dynamics.

Ebenso wie die Abnahme des Signals zwischen den Kontakten 13 und 15 vom ganzen Verstärker bzw. 13.1 und 15 von einem Teil davon erfolgen kann, ist es auch möglich, die Zuführung des Signals über den ganzen Verstärker 22 durch Anschluß zwischen 14 und 15 zu leiten bzw. durch Anschluß zwischen 14.1 und 15 nur über den Lautstärkeregler 23 und den Endverstärker 22.2. Auch hier kann durch die Wahl des Anschlusses eine Anpassung an die vorliegenden Gegebenheiten erfolgen.Just as the signal between contacts 13 and 15 can be picked up from the entire amplifier or 13.1 and 15 from part of it, it is also possible to route the signal through the entire amplifier 22 by connecting between 14 and 15 by connecting between 14.1 and 15 only via the volume control 23 and the power amplifier 22.2. Here too, the choice of the connection can be adapted to the existing conditions.

In der Figur 5 ist mit 30 die Lehrerstation einer Gehörschulungsanlage bezeichnet. In der schematischen Darstellung sind Schülerstationen 31 bis 34 angeschlossen. An den Schülerstationen 31 bis 33 liegen Hörhilfegeräte 35 bis 37, die erfindungsgemäß ausgestaltet sind. Der Schülerplatz 34 ist unbesetzt. Die Schülerplätze 31 bis 34 enthalten jeweils einen Platzverstärker 38 bis 41 sowie einen Druckknopfschalter, der als Sprechtaste 42 bis 45 dient. Eine entsprechende Taste 46 ist auch zwischen dem Lehrermikrofon 47 und dem Lehrerplatzverstärker 48 untergebracht. Während die Leitung 50 zu den Schülerplätzen 31 bis 34 fest verlegt ist, stellen die Verbindungsleitungen 11 zwischen den Schülerplätzen 31 bis 34 und den jeweiligen Hörhilfegeräten 1 abnehmbare Ansteckleitungen dar. So können die Verbindungsleitungen 16 bis 18 eines jeden Hörgerätes 1 über die drei Adern 16.1, 17.1 und 18.1 der Leitung 11 über den Anschluß 10 mit den Schülerplätzen 31 bis 34 und dem Lehrerplatz 30 verbunden werden.In FIG. 5, 30 denotes the teacher station of an ear training system. In the schematic representation, student stations 31 to 34 are connected. Hearing aid devices 35 to 37, which are designed according to the invention, are located at the school stations 31 to 33. Pupil 34 is vacant. The student places 31 to 34 each contain a place amplifier 38 to 41 and a push button switch that serves as a talk button 42 to 45. A corresponding key 46 is also accommodated between the teacher microphone 47 and the teacher position amplifier 48. While the line 50 to the student places 31 to 34 is permanently laid, the connecting lines 11 between the student places 31 to 34 and the respective hearing aids 1 represent detachable connecting lines. The connecting lines 16 to 18 of each hearing device 1 can be connected via the three wires 16.1, 17.1 and 18.1 of line 11 are connected via connection 10 to student places 31 to 34 and teacher place 30.

Die Funktion des Schulungsgerätes weicht nicht von derjenigen üblicher Schulungsgeräte ab. Der Hauptunterschied besteht darin, daß anstatt der in der Regel verwendeten Hörer und Mikrofon umfassenden Hörsprechgarnituren erfindungsgemäß ausgestaltete Hörgeräte 1 benutzt werden. Dadurch kann einerseits das Hören durch die individuelle Anpassung der Geräte 1 optimal gestaltet werden und andererseits brauchen keine zusätzlichen Mikrofone aufgestellt zu werden, weil die Mikrofone 21 der Schüler und das Lehrermikrofon 47 für die Benutzung der Anlage ausreichen. Will einer der Teilnehmer einen Beitrag in die Anlage sprechen, so drückt er seine Sprechtaste und schließt einen der Schalter 42 bis 46. Dann wird das jeweilige Mikrofon 21 bzw. 47 über entsprechende Verstärker 22 bzw. 38 bis 41 oder 48 wirksam, so daß ein Signal über die Leitung 18.1 zum jeweiligen Hörer 20 eines Schülerhörgerätes 1 kommt.The function of the training device does not differ from that of conventional training devices. The main difference is that instead of the headphones and microphone sets which are generally used, hearing aids 1 designed according to the invention are used. In this way, on the one hand, the hearing can be optimally designed by individually adapting the devices 1 and, on the other hand, no additional microphones need to be set up because the students' microphones 21 and the teacher microphone 47 are sufficient for using the system. If one of the participants wants to speak a contribution into the system, he presses his talk button and closes one of the switches 42 to 46. Then the respective microphone 21 or 47 is activated via ent speaking amplifier 22 or 38 to 41 or 48 effective so that a signal comes via line 18.1 to the respective listener 20 of a student hearing aid 1.

Claims (4)

1. Hörhilfegerät mit einem Gehäuse, das die wesentlichen Teile, wie Mikrofon, Verstärker und Hörer, enthält und an dem ein Anschluß mit Kontakten zur Verbindung mit einer Signalzuleitung zum Hörer (Audioeingang) angebracht ist, dadurch gekennzeichnet, daß der Anschluß (10) auch Kontakte (13, 13.1) für die Signalableitung vom Mikrofon (21) (Audioausgang) umfaßt.1. Hearing aid with a housing that contains the essential parts, such as a microphone, amplifier and handset, and on which a connection with contacts for connection to a signal line to the handset (audio input) is attached, characterized in that the connection (10) also Contacts (13, 13.1) for signal derivation from the microphone (21) (audio output). 2. Hörhilfegerät nach Anspruch 1, dadurch gekennzeichnet , daß der Anschluß (10) durch einen Kontakt (13, 13.1) für die Verbindung mit dem Mikrofon (21) ergänzt ist.2. Hearing aid according to claim 1, characterized in that the connection (10) is supplemented by a contact (13, 13.1) for the connection to the microphone (21). 3. Hörhilfegerät nach Anspruch 1, dadurch gekennzeichnet , daß die Ableitung vom Mikrofon wenigstens über einen Teil (22.1 bzw. 22.3) des Hörgeräteverstärkers (22) zum Anschluß (10) am Gehäuse (2) des Gerätes (1) geführt ist.3. Hearing aid according to claim 1, characterized in that the derivation from the microphone is guided at least over part (22.1 or 22.3) of the hearing aid amplifier (22) to the connection (10) on the housing (2) of the device (1). 4. Verwendung eines Hörhilfegerätes nach einem der vorhergehenden Ansprüche als Hörsprechgarnitur eines Schwerhörigenschulungsgerätes.4. Use of a hearing aid according to one of the preceding claims as a headset of a hearing aid training device.
EP84106874A 1983-07-01 1984-06-15 Hearing aid Expired - Lifetime EP0131766B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106874T ATE25481T1 (en) 1983-07-01 1984-06-15 HEARING AID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3323788 1983-07-01
DE19833323788 DE3323788A1 (en) 1983-07-01 1983-07-01 HOERHILFEGERAET

Publications (3)

Publication Number Publication Date
EP0131766A1 true EP0131766A1 (en) 1985-01-23
EP0131766B1 EP0131766B1 (en) 1987-02-11
EP0131766B2 EP0131766B2 (en) 1995-12-06

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ID=6202926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106874A Expired - Lifetime EP0131766B2 (en) 1983-07-01 1984-06-15 Hearing aid

Country Status (7)

Country Link
US (1) US4723293A (en)
EP (1) EP0131766B2 (en)
JP (1) JPS6040199U (en)
AT (1) ATE25481T1 (en)
CA (1) CA1236559A (en)
DE (2) DE3323788A1 (en)
DK (1) DK315184A (en)

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US2904640A (en) * 1957-07-30 1959-09-15 Univ Ohio State Res Found Combination ear-mounted microphone and receiver instrument
DE2049883A1 (en) * 1970-10-10 1972-04-13 Siemens Ag Hearing training device for the hearing impaired
US3819860A (en) * 1971-09-10 1974-06-25 R Miller Audio transceiver for transmitting to and receiving from the ear canal
DE3006365A1 (en) * 1979-04-20 1980-11-06 Phonak Ag HOERGERAET

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US2904640A (en) * 1957-07-30 1959-09-15 Univ Ohio State Res Found Combination ear-mounted microphone and receiver instrument
DE2049883A1 (en) * 1970-10-10 1972-04-13 Siemens Ag Hearing training device for the hearing impaired
US3819860A (en) * 1971-09-10 1974-06-25 R Miller Audio transceiver for transmitting to and receiving from the ear canal
DE3006365A1 (en) * 1979-04-20 1980-11-06 Phonak Ag HOERGERAET

Also Published As

Publication number Publication date
DE3323788A1 (en) 1985-01-03
ATE25481T1 (en) 1987-02-15
DE3462386D1 (en) 1987-03-19
CA1236559A (en) 1988-05-10
EP0131766B2 (en) 1995-12-06
EP0131766B1 (en) 1987-02-11
JPS6040199U (en) 1985-03-20
DK315184D0 (en) 1984-06-28
DK315184A (en) 1985-01-02
US4723293A (en) 1988-02-02
JPH0432880Y2 (en) 1992-08-06

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