EP0219026A1 - Prothèse auditive - Google Patents

Prothèse auditive Download PDF

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Publication number
EP0219026A1
EP0219026A1 EP86113801A EP86113801A EP0219026A1 EP 0219026 A1 EP0219026 A1 EP 0219026A1 EP 86113801 A EP86113801 A EP 86113801A EP 86113801 A EP86113801 A EP 86113801A EP 0219026 A1 EP0219026 A1 EP 0219026A1
Authority
EP
European Patent Office
Prior art keywords
microphone
hearing
locating
ear
hearing aid
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
EP86113801A
Other languages
German (de)
English (en)
Other versions
EP0219026B1 (fr
Inventor
Eberhard Prof Dr. Zwicker
Thomas Dipl.-Ing. Beckenbauer
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AT86113801T priority Critical patent/ATE53736T1/de
Publication of EP0219026A1 publication Critical patent/EP0219026A1/fr
Application granted granted Critical
Publication of EP0219026B1 publication Critical patent/EP0219026B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • 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; ELECTRIC HEARING AIDS; 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 invention relates to a hearing aid according to the preamble of patent claim 1.
  • 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 reception direction is predominantly 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.
  • a hearing aid which comprises two front microphones and two side microphones arranged near the ears is known, for example, from US Pat. No. 3,789,163.
  • the front microphones are not a directional microphone arrangement.
  • the micro placed near the ears Phones 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.
  • 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.
  • 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.
  • the microphone for broadcast reception of the hearing aid of DE-OS 22 22 543 and also of US Pat tion because spatial resolution is impossible.
  • 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, in a laborious and time-consuming manner, scans the area around him 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.
  • 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.
  • 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.
  • both spherical microphone capsule pairs M1, M2 and M1 ', M2' form a directional microphone arrangement in the circuit according to Figure 2.
  • the components are non-inverting and inverting amplifiers 13, 14 and 13 ', 14', differentiators 15 and 15 'with adjustable basic gain 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.
  • two locating microphones MO1, MO2 are also arranged in both temple pieces 9, 10, such that when the hearing glasses are fitted, the first locating microphone MO1 above the left ear and the second locating microphone MO2 above the right ear of the hearing impaired is placed.
  • the location microphones MO1, MO2 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 local hearing.
  • the signals from the two location microphones MO1 and MO2 are therefore preferably low passports mixed in with a corresponding cut-off frequency, as is shown even more clearly in FIG.
  • the components 13, 13 ', 14, 14', 15, 15 'and 16 shown in the circuit diagram of Figure 2 in the dashed block 17 are divided into two circuit electronics blocks 19 and 20 according to Figure 3.
  • 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 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 low-pass filter 27 to the locating microphone capsule MO1.
  • the adder 25 in the second temple piece 10 receives the signal of the locating microphone capsule MO2 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.
  • the adder 25 is coupled to the input of an amplifier 33 via a signal line 32.
  • the receiver 34 is located for the left ear canal of the hearing impaired.
  • 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).
  • the listeners can also be placed directly in the ear canal, as is customary with in-the-ear hearing aids.
  • Components 38 and 39 are each a battery for power supply via supply lines 40 and 41.
  • the two microphones MO1 and MO2 serve as location microphones.
  • the microphone MO1 When the hearing glasses are on, the microphone MO1 is directly above the left ear and the microphone MO2 is 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 MO2 and can turn his head with the hearing glasses in the direction of this sound source.
  • the directional microphone arrangement M1, M2, M1 ′, 1 M2 ′ can fully develop its effect.
  • all components, including the microphones, are accommodated in the temple pieces.
  • these components can also be combined in assemblies that are to be attached to the brackets so that they are actually outside the brackets.
  • a kind of headband can be used to hold the microphones M1, M2, M1 ', M2' and MO1, MO2.

Landscapes

  • Otolaryngology (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Neurosurgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Adornments (AREA)
  • Finger-Pressure Massage (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Gyroscopes (AREA)
  • Semiconductor Lasers (AREA)
  • Inorganic Insulating Materials (AREA)
EP86113801A 1985-10-16 1986-10-06 Prothèse auditive Expired - Lifetime EP0219026B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113801T ATE53736T1 (de) 1985-10-16 1986-10-06 Hoergeraet.

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 true EP0219026A1 (fr) 1987-04-22
EP0219026B1 EP0219026B1 (fr) 1990-06-13

Family

ID=6283739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113801A Expired - Lifetime EP0219026B1 (fr) 1985-10-16 1986-10-06 Prothèse auditive

Country Status (6)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704119C1 (de) * 1997-02-04 1998-10-01 Siemens Audiologische Technik Schwerhörigen-Hörhilfe
DE19810043A1 (de) * 1998-03-09 1999-09-23 Siemens Audiologische Technik Hörgerät mit einem Richtmikrofon-System
WO2001076319A3 (fr) * 2000-03-31 2002-12-27 Clarity L L C Procede et appareil d'extraction de signal vocal
EP1538874A3 (fr) * 2003-12-01 2010-01-20 Siemens Audiologische Technik GmbH Dispositif d'écoute avec un traitement de signaux à dépendance directionnelle et procédé correspondant
US8351636B2 (en) 2004-03-31 2013-01-08 Swisscom Glasses frame comprising an integrated acoustic communication system for communication with a mobile radio appliance, and corresponding method
EP2320680A3 (fr) * 2009-10-16 2013-07-03 Knowles Electronics Asia PTE. Ltd. Lunettes avec planaire de microphones pour faciliter l'audition
EP2856183A4 (fr) * 2012-05-31 2016-01-20 Univ Mississippi Systèmes et procédés pour détecter des signaux acoustiques transitoires

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704119C1 (de) * 1997-02-04 1998-10-01 Siemens Audiologische Technik Schwerhörigen-Hörhilfe
DE19810043A1 (de) * 1998-03-09 1999-09-23 Siemens Audiologische Technik Hörgerät mit einem Richtmikrofon-System
WO2001076319A3 (fr) * 2000-03-31 2002-12-27 Clarity L L C Procede et appareil d'extraction de signal vocal
EP1538874A3 (fr) * 2003-12-01 2010-01-20 Siemens Audiologische Technik GmbH Dispositif d'écoute avec un traitement de signaux à dépendance directionnelle et procédé correspondant
US8351636B2 (en) 2004-03-31 2013-01-08 Swisscom Glasses frame comprising an integrated acoustic communication system for communication with a mobile radio appliance, and corresponding method
EP2320680A3 (fr) * 2009-10-16 2013-07-03 Knowles Electronics Asia PTE. Ltd. Lunettes avec planaire de microphones pour faciliter l'audition
EP2856183A4 (fr) * 2012-05-31 2016-01-20 Univ Mississippi Systèmes et procédés pour détecter des signaux acoustiques transitoires
US9949025B2 (en) 2012-05-31 2018-04-17 University Of Mississippi Systems and methods for detecting transient acoustic signals

Also Published As

Publication number Publication date
EP0219026B1 (fr) 1990-06-13
DK492086D0 (da) 1986-10-15
US4773095A (en) 1988-09-20
DK492086A (da) 1987-04-17
JPS6295098A (ja) 1987-05-01
DE3672083D1 (de) 1990-07-19
ATE53736T1 (de) 1990-06-15
DE8529458U1 (de) 1987-05-07

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