EP0219026B1 - Hearing aid - Google Patents

Hearing aid Download PDF

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Publication number
EP0219026B1
EP0219026B1 EP86113801A EP86113801A EP0219026B1 EP 0219026 B1 EP0219026 B1 EP 0219026B1 EP 86113801 A EP86113801 A EP 86113801A EP 86113801 A EP86113801 A EP 86113801A EP 0219026 B1 EP0219026 B1 EP 0219026B1
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EP
European Patent Office
Prior art keywords
microphone
hearing
location
ear
hearing aid
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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.)
Expired - Lifetime
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EP86113801A
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German (de)
French (fr)
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EP0219026A1 (en
Inventor
Eberhard Prof Dr. Zwicker
Thomas Dipl.-Ing. Beckenbauer
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Siemens AG
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Siemens AG
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Priority to AT86113801T priority Critical patent/ATE53736T1/en
Publication of EP0219026A1 publication Critical patent/EP0219026A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers

Definitions

  • the wearer of such a hearing aid is therefore not able to recognize the direction from which sound signals that interest him originate. He can only determine the direction from which the sound information of interest comes in by switching from broadcast reception to directional reception and then scanning the surrounding area in a cumbersome and time-consuming manner with the aid of the directional microphone arrangement until the signals of interest previously found in broadcast reception are in the Reception range of the directional microphone arrangement are.

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)
  • Semiconductor Lasers (AREA)
  • Inorganic Insulating Materials (AREA)
  • Gyroscopes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A hearing aid which can be built into a frame, such as eyeglasses, to be worn by a hearing-impaired person has a first microphone arrangement having a directional reception pattern, and a second microphone arrangement for sound locating. The second microphone arrangement includes a first locating microphone disposed in the region of one ear of the hearing-impaired person, and a second locating microphone disposed in the region of the other ear. The signal from both locating microphones are mixed by a low-pass filter with the signal from the microphone arrangement having a directional reception pattern, and the output of the mixing operation is supplied in common to both ears of the hearing-impaired person.

Description

Die Erfindung bezieht sich auf ein Hörgerät gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a hearing aid according to the preamble of patent claim 1.

Ein Hörgerät dieser Art ist z.B. aus der DE-OS 22 22 543 bekannt. Dieses Hörgerät umfaßt eine erste Mikrofonanordnung mit Richtcharakteristik, die aus zwei Mikrofonen besteht, die am Handgelenk eines Hörgeschädigten angeordnet sind, derart, daß die Hauptempfangsrichtungen parallel zueinander, vorzugsweise in Richtung der ausgestreckten Finger, verlaufen. Das bekannte Hörgerät umfaßt auch noch eine zweite Mikrofonanordnung, die aus einem einzelnen Mikrofon für Rundempfang besteht, das am Handgelenk zwischen den beiden Mikrofonen der Richtmikrofonanordnung befestigt ist, derart, daß die Empfangsrichtung vorwiegend senkrecht zur Handfläche gerichtet ist. Ein Umschalter ermöglicht dem Hörgeschädigten die Umschaltung zwischen dem allgemeinen Rundempfang und dem Empfang aus einer bevorzugten Richtung. Das Mikrofon für den Rundempfang kann auch in Verbindung mit dem Hörer eines Telefonapparates zum Telefonieren eingesetzt werden.A hearing aid of this type is e.g. known from DE-OS 22 22 543. This hearing aid comprises a first microphone arrangement with directional characteristic, which consists of two microphones which are arranged on the wrist of a hearing-impaired person, in such a way that the main reception directions run parallel to one another, preferably in the direction of the outstretched fingers. The known hearing aid also includes a second microphone arrangement, which consists of a single microphone for broadcast reception, which is attached to the wrist between the two microphones of the directional microphone arrangement, in such a way that the direction of reception is mainly perpendicular to the palm. A switch enables the hearing impaired to switch between general broadcast reception and reception from a preferred direction. The microphone for broadcast reception can also be used in connection with the handset of a telephone set for making calls.

Ein Hörgerät, das zwei Front- und zwei in Nähe der Ohren angeordnete Seitenmikrofone umfaßt, ist z.B. aus der US-PS 37 89 163 vorbekannt. Bei den frontseitigen Mikrofonen handelt es sich aber nicht um eine Richtmikrofonanordnung. Die in der Nähe der Ohren angeordneten Mikrofone dienen lediglich dazu, die Empfindlichkeit der Mikrofonanordnung zu den Seiten hin zwecks Verbesserung des räumlichen Hörens zu erhöhen (Effekt einer Rundumcharakteristik). Eine Zusammenschaltung der beiden nahe den Ohren angeordneten Mikrofonen mit einer Richtmikrofonanordnung der eingangs genannten Art würde dazu führen, daß diese "Ortungsmikrofone" die Richtcharakteristik der Richtmikrofonanordnung insbesondere im Bereich höherer Frequenzen zerstören würden.A hearing aid comprising two front microphones and two side microphones arranged near the ears is e.g. previously known from US-PS 37 89 163. The front microphones are not a directional microphone arrangement. The microphones arranged near the ears only serve to increase the sensitivity of the microphone arrangement to the sides in order to improve spatial hearing (effect of an all-round characteristic). An interconnection of the two microphones arranged near the ears with a directional microphone arrangement of the type mentioned at the outset would lead to the fact that these "location microphones" would destroy the directional characteristic of the directional microphone arrangement, particularly in the range of higher frequencies.

Aufgabe der vorliegenden Erfindung ist es, ein Hörgerät der eingangs genannten Art dahingehend weiterzubilden, daß eine räumliche Orientierung ohne Zerstörung der Richtcharakteristik der Richtmikrofonanordnung einfach möglich ist.The object of the present invention is to further develop a hearing aid of the type mentioned at the outset such that spatial orientation is easily possible without destroying the directional characteristic of the directional microphone arrangement.

Die Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst.The object is achieved with the characterizing features of claim 1.

Gemäß der vorliegenden Erfindung kann ein Hörgeschädigter mittels der vom ersten und zweiten Ortungsmikrofon gelieferten tiefpaßgefilterten Schallsignale sehr rasch feststellen, aus welcher Richtung Schallinformation, die ihn aus einem Gemisch von Rundumschall besonders interessiert, stammt. Er kann daraufhin den Kopf in Einfallsrichtung der interessierenden Schallinformation drehen und damit automatisch die erste Mikrofonanordnung mit Richtcharakteristik auf die die interessierende Schallinformation abgebende Schallquelle ausrichten. Die Richtcharakteristik der Richtmikrofonanordnung wird durch die tiefpaßgefilterten, also niederfrequenten Signale der Ortungsmikrofone praktisch nicht gestört. Im Gegensatz zum vorhergehenden erlaubt das Mikrofon für Rundempfang des Hörgerätes der DE-OS 22 22 543 bzw. auch der US-PS 37 89 163 keine wirkliche Selektion der Richtung, da eine räumliche Auflösung unmöglich ist. Der.Träger eines solchen Hörgerätes ist also im Gegensatz zum Träger eines Hörgerätes gemäß der vorliegenden Erfindung nicht in der Lage, zu erkennen, aus welcher Richtung Schallsignale, die ihn interessieren, stammen. Er kann die Richtung, aus der interessierende Schallinformation einfällt, lediglich dadurch feststellen, daß er von Rundempfang auf Richtempfang umschaltet und dann in umständlicher und zeitraubender Weise den ihn umgebenden Raum mit Hilfe der Richtmikrofonanordnung abtastet so lange, bis die zuvor im Rundempfang festgestellten interessierenden Signale im Empfangsbereich der Richtmikrofonanordnung liegen.According to the present invention, a hearing-impaired person can use the low-pass filtered sound signals supplied by the first and second locating microphone to determine very quickly from which direction sound information that particularly interests him from a mixture of all-round sound originates. He can then turn his head in the direction of incidence of the sound information of interest and thus automatically align the first microphone arrangement with directional characteristic to the sound source emitting the sound information of interest. The directional characteristic of the directional microphone arrangement is practically not disturbed by the low-pass filtered, that is, low-frequency signals from the location microphones. In contrast to the previous one, the microphone for broadcast reception of the hearing aid of DE-OS 22 22 543 or US Pat. No. 37 89 163 does not allow any real selection of the direction, since spatial resolution is impossible. In contrast to the wearer of a hearing aid according to the present invention, the wearer of such a hearing aid is therefore not able to recognize the direction from which sound signals that interest him originate. He can only determine the direction from which the sound information of interest comes in by switching from broadcast reception to directional reception and then scanning the surrounding area in a cumbersome and time-consuming manner with the aid of the directional microphone arrangement until the signals of interest previously found in broadcast reception are in the Reception range of the directional microphone arrangement are.

Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung und in Verbindung mit den Unteransprüchen.Further advantages and details of the invention emerge from the following description of an exemplary embodiment with reference to the drawing and in conjunction with the subclaims.

Es zeigen:

  • Figur 1 ein Ausführungsbeispiel des erfindungsgemäßen Hörgerätes als eine von einem Hörgeschädigten zu tragende Hörbrille in schematischer Darstellung,
  • Figur 2 ein Ausführungsbeispiel für eine Richtmikrofonanordnung im Prinzipschaltbild,
  • Figur 3 die Hörbrille der Figur 1 in detaillierterer perspektivischer Darstellung.
Show it:
  • FIG. 1 shows an exemplary embodiment of the hearing device according to the invention as hearing glasses to be worn by a hearing impaired person in a schematic illustration,
  • FIG. 2 shows an exemplary embodiment of a directional microphone arrangement in the basic circuit diagram,
  • Figure 3 shows the hearing glasses of Figure 1 in a more detailed perspective view.

In der Figur 1 ist der Kopf eines Schwerhörigen mit 1 dargestellt. Das linke Ohr ist mit 2 und das rechte Ohr mit 3 bezeichnet. Die Nase des Schwerhörigen trägt die Kennziffer 4. Wie in der Figur 1 dargestellt, trägt der Schwerhörige ein als Hörbrille 5 ausgebildetes Hörgerät.In Figure 1, the head of a hearing impaired is shown at 1. The left ear is labeled 2 and the right ear is labeled 3. The nose of the hearing impaired bears the number 4. As shown in Figure 1, the hearing impaired wearing a hearing aid 5 designed as hearing glasses.

Die Hörbrille 5 umfaßt einen Brillenrahmen 6 mit Gläsern 7,8 (Figur 3). Sie umfaßt ferner einen ersten Brillenbügel 9 für das linke Ohr 2 und einen zweiten Brillenbügel 10 für das rechte Ohr 3.The hearing glasses 5 comprise a glasses frame 6 with glasses 7, 8 (FIG. 3). It also includes a first temple 9 for the left ear 2 and a second temple 10 for the right ear 3.

Im ersten Brillenbügel 9 sind in der Nähe des Scharniers 11 ein erstes Paar Kugelmikrofon-Kapsein M1, M2 (z.B. Knowles-Mikrofone) und im zweiten Brillenbügel 10 sind entsprechend in der Nähe des Scharniers 12 ein zweites Paar Kugelmikrofon-Kapseln M1', M2' (z.B. Knowles-Mikrofone) angeordnet. In beiden Paaren sitzen die Kugelmikrofon-Kapseln im Abstand von z.B. d = 5 mm hintereinander. Beide Kugelmikrofon-Kapsel-Paare M1, M2 und M1', M2' bilden in Verschaltung gemäß Figur 2 eine Richtmikrofonanordnung. Die Bauelemente sind nicht invertierende und invertierende Verstärker 13, 14 bzw. 13', 14', Differenzierglieder 15 bzw. 15' mit einstellbarer Grundverstärkung und ein Summierglied 16. Die ausgeprägte Richtcharakteristik ergibt sich aus der Überlagerung zweier Hypernieren. Im Prinzip kann jedoch auch jede andere Art von Richtmikrofonanordnung eingesetzt werden.A first pair of spherical microphone capsules M1, M2 (eg Knowles microphones) are located in the first spectacle temple 9 near the hinge 11 and a second pair of spherical microphone capsules M1 ', M2' are accordingly located in the second spectacle temple 10 near the hinge 12 (eg Knowles microphones). In both pairs, the spherical microphone capsules sit one behind the other at a distance of, for example, d = 5 mm. Both spherical microphone-capsule pairs M1, M2 and M1 ', M2 ' form a directional microphone arrangement when connected in accordance with FIG. The components are non-inverting and inverting amplifiers 13, 14 and 13 ', 14', differentiators 15 and 15 'with adjustable basic amplification and a summing element 16. The pronounced directional characteristic results from the superposition of two hypercardioids. In principle, however, any other type of directional microphone arrangement can also be used.

In beiden Brillenbügeln 9, 10 sind gemäß der vorliegenden Erfindung aber auch noch zwei Ortungsmikrofone M01, M02 (z.B. Knowles-Kugelmikrofone) angeordnet, derart, daß bei aufgesetzter Hörbrille das erste Ortungsmikrofon M01 über dem linken Ohr und das zweite Ortungsmikrofon M02 über dem rechten Ohr des Hörgeschädigten plaziert ist. Die Ortungsmikrofone M01, M02 können auch innerhalb der Ohrmuschel angebracht werden. Bei Anordnung im Bereich der Ohren ist die dämpfende Wirkung des Kopfes 1 am größten, so daß sich ein optimaler Ortungseffekt ergibt. Für das Ortungshören sind vor allem tiefe Frequenzen « 800 Hz) maßgebend. Die Signale der beiden Ortungsmikrofone M01 und M02 werden also bevorzugt über Tiefpässe mit entsprechender Grenzfrequenz zugemischt, wie in Figur 3 noch deutlicher dargestellt ist.According to the present invention, two locating microphones M01, M02 (e.g. Knowles spherical microphones) are also arranged in both temple pieces 9, 10, such that when the hearing glasses are on, the first locating microphone M01 above the left ear and the second locating microphone M02 above the right ear of the hearing impaired pla is adorned. The location microphones M01, M02 can also be attached inside the ear cup. When arranged in the area of the ears, the damping effect of the head 1 is greatest, so that there is an optimal locating effect. Low frequencies («800 Hz) are decisive for locating hearing. The signals from the two location microphones M01 and M02 are therefore preferably mixed in via low-pass filters with a corresponding cut-off frequency, as is shown even more clearly in FIG.

In der Hörbrille 5 sind gemäß Figur 3 die im Schaltbild der Figur 2 im gestrichelten Block 17 dargestellten Bauelemente 13, 13', 14, 14', 15, 15' und 16 auf zwei Schaltungselektronikblöcke 19 und 20 aufgeteilt. Die beiden Schaltungselektronikblöcke 19 und 20 sind über die Verbindungsleitungen 21, die durch die Brillenbügel und den Brillenrahmen oder auf einem anderen Wege hindurchgeführt sind (in Figur 3 nicht dargestellt), miteinander verbunden. Die Ausgangssignalleitung für das Signal SA (Figur 2) führt im Brillenbügel 9 über eine erste Zweigleitung 22 zu einem Addierglied 23. Entsprechend führt im anderen Brillenbügel 10 das Signal SA über eine andere Zweigleitung 24 zu einem Addierglied 25. Dem Addierglied 23 wird über eine Signalleitung 26 auch noch das mittels Tiefpaß 27 gefilterte Mikrofonsignal der Ortungsmikrofon-Kapsel M01 zugeleitet. Entsprechend empfängt das Addierglied 25 im zweiten Brillenbügel 10 über die Signalleitung 28 mit Tiefpaß 29 das Signal der Ortungsmikrofon-Kapsel M02. Das Addierglied 23 ist ausgangsseitig über eine Signalleitung 30 mit dem Eingang eines Verstärkers 31 verbunden. Entsprechend ist das Addierglied 25 über eine Signalleitung 32 mit dem Eingang eines Verstärkers 33 gekoppelt. Am Ausgang des Verstärkers 31 liegt der Hörer 34 für den linken Ohrkanal des Schwerhörigen. Entsprechend liegt am Ausgang des Verstärkers 33 der Hörer 35 für den rechten Ohrkanal des Schwerhörigen. Die Hörer werden üblicherweise über Schlauchanschlüsse und Ohroliven (nicht dargestellt) mit den Ohrkanälen verbunden. Die Hörer können aber auch direkt, wie bei Im-Ohr-Hörgeräten üblich, im Ohrkanal plaziert werden. Im Ausführungsbeispiel der Figur 3 ist der linksseitige Schlauchanschluß mit 36 und der rechtsseitige Schlauchanschluß mit 37 angedeutet. Die Bauelemente 38 und 39 sind je eine Batterie zur Stromversorgung über Versorgungsleitungen 40 und 41.3, the components 13, 13 ', 14, 14', 15, 15 'and 16 shown in the block diagram 17 in the block diagram 17 in FIG. 3 are divided into two circuit electronics blocks 19 and 20 in the hearing glasses 5. The two circuit electronics blocks 19 and 20 are connected to one another via the connecting lines 21, which are led through the spectacle arms and the spectacle frame or in another way (not shown in FIG. 3). The output signal line for the signal S A (FIG. 2) leads in the temple 9 via a first branch line 22 to an adder 23. Accordingly, in the other temple 10, the signal S A leads via another branch 24 to an adder 25. The adder 23 is transferred a signal line 26 also feeds the microphone signal filtered by the low-pass filter 27 to the locating microphone capsule M01. Correspondingly, the adder 25 in the second temple piece 10 receives the signal of the locating microphone capsule M02 via the signal line 28 with a low-pass filter 29. The adder 23 is connected on the output side via a signal line 30 to the input of an amplifier 31. Accordingly, the adder 25 is coupled to the input of an amplifier 33 via a signal line 32. At the output of the amplifier 31, the receiver 34 is located for the left ear canal of the hearing impaired. Accordingly, the receiver 35 for the right ear canal of the hearing impaired is located at the output of the amplifier 33. The earphones are usually connected to the ear canals via hose connections and ear tips (not shown). However, the listeners can also be placed directly in the ear canal, as is customary with in-the-ear hearing aids. In the exemplary embodiment in FIG. 3, the hose connection on the left is indicated by 36 and the hose connection on the right by 37. Components 38 and 39 are each a battery for power supply via supply lines 40 and 41.

Wie vorher schon erwähnt, dienen die beiden Mikrofone M01 und M02 als Ortungsmikrofone. Bei aufgesetzter Hörbrille liegt das Mikrofon M01 direkt über dem linken Ohr und das Mikrofon M02 über dem rechten Ohr des Hörgeschädigten. Der Hörgeschädigte kann über die beiden Ortungsmikrofone MO1 und M02 eine interessierende Schallquelle orten und den Kopf mit der Hörbrille in Richtung dieser Schallquelle drehen. Bei auf die Schallquelle gerichtetem Kopf kann dan die Richtmikrofonanordnung M1, M2, M1',1 M2' ihre Wirkung voll entfalten.As mentioned before, the two microphones M01 and M02 serve as location microphones. When the hearing glasses are on, the microphone M01 is directly above the left ear and the microphone M02 above the right ear of the hearing impaired. The hearing impaired can locate a sound source of interest via the two location microphones MO1 and M02 and turn their head with the hearing glasses in the direction of this sound source. When the head is directed towards the sound source, the directional microphone arrangement M1, M2, M1 ', 1 M2 ' can fully develop its effect.

Im Ausführungsbeispiel der Figur 3 sind sämtliche Bauelemente einschließlich der Mikrofone in den Brillenbügeln untergebracht. Selbstverständlich können diese Bauelemente auch in Baugruppen zusammengefaßt werden, die an den Bügeln zu befestigen sind, so daß sie sich tatsächlich außerhalb der Bügel befinden. Anstelle einer Brille kann auch eine Art Kopfbügel zum Halten der Mikrofone M1, M2, M1', M2' und M01, M02 verwendet werden.In the exemplary embodiment in FIG. 3, all components, including the microphones, are accommodated in the temple pieces. Of course, these components can also be combined in assemblies that are to be attached to the brackets so that they are actually outside the brackets. Instead of glasses, a kind of headband can also be used to hold the microphones M1, M2, M1 ', M2' and M01, M02.

Claims (5)

1. Hearing aid for people with damaged hearing having a first microphone arrangement (M1, M2, M1', M2') with a directional characteristic, the output signal (SA) of which is supplied to both ears at the same time, and having a second microphone arrangement which, for sound location purposes, comprises a first location microphone (M01) to be arranged in the region of the one ear (2) of the person with damaged hearing and a second location microphone (M02) to be arranged in the region of the other ear (3) of the person with damaged hearing, with the signal of each location microphone (M01, M02) being mixed separately by means of a respective low pass filter (27, 29) with each output signal of the first microphone arrangement (M1, M2, M1', M2'), which output signals are decoupled from one another.
2. Hearing aid according to claim 1, characterized in that the first microphone arrangement (M1, M2, M1 M2') has an output signal line for the common output signal (SA), to which two branch lines (22, 24) are connected which each contain an adding element (23, 25) in which a signal of a respective location microphone (M01, M02) is mixed, with each adding element (23, 25) being coupled on the output side with the input of a respective amplifier (31, 33) .
3. Hearing aid according to claim 1 or 2, characterized in that the first microphone arrangement (M1, M2, M1', M2') is arranged on or in hearing spectacles. (5) with two spectacles side-pieces (9, 10) and in that one side-piece (9) of the spectacles supports the first location microphone (M01) and the other side-piece (10) of the spectacles supports the second location microphone (M02), in such a way that when the hearing spectacles (5) are put on with the side-pieces of the spectacles resting on the ears (2, 3) the first location microphone (M01) is placed in the region of one ear (2) and the second location microphone (M02) is placed in the region of the other ear (3).
4. Hearing aid according to one of claims 1 to 3, characterized in that the first location microphone (M01) is to be arranged over or in one ear (2) and the second location microphone (M02) is to be arranged over or in the other ear (3).
5. Hearing aid according to one of claims 1 to 4, characterized in that the first and second location microphone (M01, M02) is in each case a non-directional microphone.
EP86113801A 1985-10-16 1986-10-06 Hearing aid Expired - Lifetime EP0219026B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113801T ATE53736T1 (en) 1985-10-16 1986-10-06 HEARING AID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3536915 1985-10-16
DE3536915 1985-10-16

Publications (2)

Publication Number Publication Date
EP0219026A1 EP0219026A1 (en) 1987-04-22
EP0219026B1 true EP0219026B1 (en) 1990-06-13

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EP86113801A Expired - Lifetime EP0219026B1 (en) 1985-10-16 1986-10-06 Hearing aid

Country Status (6)

Country Link
US (1) US4773095A (en)
EP (1) EP0219026B1 (en)
JP (1) JPS6295098A (en)
AT (1) ATE53736T1 (en)
DE (2) DE8529458U1 (en)
DK (1) DK492086A (en)

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EP0219026A1 (en) 1987-04-22
DE3672083D1 (en) 1990-07-19
JPS6295098A (en) 1987-05-01
US4773095A (en) 1988-09-20
DE8529458U1 (en) 1987-05-07
DK492086D0 (en) 1986-10-15
ATE53736T1 (en) 1990-06-15
DK492086A (en) 1987-04-17

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