EP0466676A2 - Prothèse auditive avec un microphone directif muni d'une directivité variable - Google Patents

Prothèse auditive avec un microphone directif muni d'une directivité variable Download PDF

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Publication number
EP0466676A2
EP0466676A2 EP91890130A EP91890130A EP0466676A2 EP 0466676 A2 EP0466676 A2 EP 0466676A2 EP 91890130 A EP91890130 A EP 91890130A EP 91890130 A EP91890130 A EP 91890130A EP 0466676 A2 EP0466676 A2 EP 0466676A2
Authority
EP
European Patent Office
Prior art keywords
microphone
hearing aid
directional
aid according
hearing
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
EP91890130A
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German (de)
English (en)
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EP0466676A3 (en
EP0466676B1 (fr
Inventor
Zlatan Dipl.-Ing. Dr. Ribic
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Viennatone GmbH
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Viennatone GmbH
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Filing date
Publication date
Application filed by Viennatone GmbH filed Critical Viennatone GmbH
Publication of EP0466676A2 publication Critical patent/EP0466676A2/fr
Publication of EP0466676A3 publication Critical patent/EP0466676A3/de
Application granted granted Critical
Publication of EP0466676B1 publication Critical patent/EP0466676B1/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; 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
    • 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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones

Definitions

  • the invention relates to a hearing aid for the hearing impaired with a directional microphone whose directional characteristic can be changed.
  • One type is the so-called pressure microphone, which converts air pressure into electrical voltage, the other the so-called gradient microphone, the gradient of the air pressure serving as the source variable.
  • the pressure microphone picks up the sound regardless of the direction of incidence, as long as its dimensions are small in relation to the wavelength.
  • the pressure microphone therefore has a so-called omnidirectional characteristic.
  • the gradient microphone picks up the sound at two points, whereby the pressure difference is perceived at these points. It is typical of this type of microphone that the directional characteristic looks like the number 8 in one plane. This type of directivity is therefore also referred to as the "figure of eight". Since the gradient of the pressure is frequency-dependent, gradient microphones transmit low frequencies weaker than high frequencies, with a slope of + 6dB / octave. It is possible and known to install acoustic attenuators and delay elements in one of the two sound inputs, which creates intermediate stages from figure eight to almost spherical characteristics (e.g. cardiac or cardioid characteristics). If a sound inlet opening is closed at all with a pressure gradient microphone, this acts like a normal pressure microphone with omnidirectional characteristics.
  • acoustic attenuators and delay elements in one of the two sound inputs, which creates intermediate stages from figure eight to almost spherical characteristics (e.g. cardiac or cardioid characteristics). If a sound inlet opening is closed at
  • hearing aids today are equipped either with a normal pressure microphone or with a directional microphone (gradient microphone).
  • Directional microphones are ideal for a noisy environment, but you have to put up with low-frequency suppression and easily audible self-noise in a quiet environment.
  • Printing microphones on the other hand, can achieve good results in a quiet environment, but not in a noisy environment, which is why it also has trials given to compensate for their disadvantages by combining both types of microphone.
  • a hearing aid in which the closing of a speech opening can be carried out manually with a kind of mechanical valve. Apart from the constructive difficulties with this type of switching of the directional characteristic, it is not always easy for the hearing impaired to recognize which characteristic would be optimal for him in a certain acoustic situation.
  • the object of the invention is to provide a hearing aid which avoids the disadvantages of conventional devices described above, the directional characteristic being controlled automatically as a function of the input signal or output signal in such a way that all possible characteristics between ball and figure eight would be adjustable.
  • a hearing device of the type mentioned at the outset in that the directional microphone is an electric microphone and the change in the directional characteristic takes place electrically and continuously.
  • the microphone has a directional characteristic (e.g. heart-shaped).
  • the microphone becomes a pressure capsule, i.e. linear and with spherical characteristics.
  • the directional microphone is formed by two printing systems, the speaking openings of which are arranged spatially separated, the output voltage of one microphone being inverted and added to the output voltage of the other microphone via a controllable attenuator, thus simulating the function of a gradient microphone becomes.
  • the low-frequency suppression acts like loud signals like an ASP ("Automatic Signal Processing") and thus improves speech intelligibility.
  • ASP Automatic Signal Processing
  • the directional characteristic suppresses the noise from undesired directions. In a quiet environment, the reproduction is rich in bass, pleasant sound and the microphone picks up sound from all directions.
  • controllable attenuator is manually adjustable. This enables user intervention.
  • controllable attenuator is designed as a current- or voltage-controlled attenuator
  • the input or output signal of the hearing aid is used as the manipulated variable
  • the two individual microphones are replaced by a double-membrane system in a housing.
  • a normal pressure capsule has a membrane that is connected to the outside air on one side and to a closed chamber on the other side. The deflection of the diaphragm is therefore only dependent on the current pressure of the outside air.
  • a gradient capsule practically consists of only one diaphragm connected to the outside air on both sides and is to be regarded as a system with two inputs. Each side of the diaphragm corresponds to an inlet, the diaphragm deflection being controlled by the pressure difference between the two inlets.
  • a gradient effect can also be achieved artificially with two pressure capsules. If the two pressure capsules are spatially separated, they take up the pressure at two points, namely where the entrances of the capsules are arranged. The two electrical signals from the capsules represent the two pressure variables.
  • Fig. 1 is a circuit diagram of the hearing aid according to the invention and Fig. 2 is a sectional view illustrating the structure of a further preferred embodiment of the invention.
  • Fig. 1 shows an arrangement with two pressure capsules. Mi1 1 and Mi2 2.
  • an inverter 3 it is possible to reverse the phase of a signal and to add both signals in a summing amplifier 4.
  • this procedure only the difference between the two signals is transmitted to the output 5 of the circuit and a typical gradient effect is thereby achieved.
  • the attenuator 6 can be, for example, a voltage-controlled attenuator VCA, which receives its control signal via a control amplifier and rectifier 7 directly from one of the two microphones ("input-controlled”) or - as indicated by dashed lines - from the output (output stage) of the hearing aid ("output controlled”).
  • VCA voltage-controlled attenuator
  • FIG. 2 A much more elegant option is the two-membrane system according to the invention, as shown schematically in FIG. 2.
  • these are two interconnected pressure capsules in a housing 10, with separate inputs and outputs.
  • the rear volumes 11, 12 are connected to one another by holes 13, 14 in the counter electrodes E1 and E2 15, 16 and an acoustic resistor 17 between them.
  • I1 is the mouth 18 of the (forward facing) main system M1.
  • the mouth 12 of the second system can be arranged 19 on the opposite narrow side, consist of a hole with a socket in the cover 20, or also consist of a deflection 21, inside of which e.g. known means for sound attenuation and / or delay 22 can be arranged.
  • "P" is a substrate 23 which is used for contacting on the outside and on which FET amplifiers for both systems can also be arranged,
  • Such a capsule shows the same properties as the system described above with two pressure capsules.
  • the advantage, however, is that the system is smaller and cheaper.
  • Double-membrane condenser microphones with electrically changeable directional characteristics are already known from the literature (e.g. "Taschenbuch der technical Akustik", Springer Verlag, 1975). However, these are “normal” condenser microphones with an external, adjustable and switchable polarization voltage. However, such a circuit would not be feasible with the "electret” microphones used in hearing aids, since the amount and polarity of the bias can not be influenced from the outside.

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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)
EP91890130A 1990-07-13 1991-06-25 Prothèse auditive avec un microphone directif muni d'une directivité variable Expired - Lifetime EP0466676B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1500/90 1990-07-13
AT0150090A AT407815B (de) 1990-07-13 1990-07-13 Hörgerät

Publications (3)

Publication Number Publication Date
EP0466676A2 true EP0466676A2 (fr) 1992-01-15
EP0466676A3 EP0466676A3 (en) 1992-07-29
EP0466676B1 EP0466676B1 (fr) 1995-03-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890130A Expired - Lifetime EP0466676B1 (fr) 1990-07-13 1991-06-25 Prothèse auditive avec un microphone directif muni d'une directivité variable

Country Status (6)

Country Link
US (1) US5214709A (fr)
EP (1) EP0466676B1 (fr)
AT (1) AT407815B (fr)
CA (1) CA2046416C (fr)
DE (1) DE59104846D1 (fr)
DK (1) DK0466676T3 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499699A1 (fr) * 1991-02-20 1992-08-26 Phonak Ag Prothèse auditive avec au moins deux microphones
EP0605666A1 (fr) * 1992-03-25 1994-07-13 Motorola, Inc. Microphone en ceramique piezoelectrique a annulation des vibrations
FR2711515A1 (fr) * 1993-10-21 1995-05-05 Boucobza Fabien Dispositif d'aide à l'audition.
EP0664071A4 (fr) * 1993-04-13 1995-05-18 Waldhauer Ruth Legal Represent Prothese auditive a systeme de commutation de microphone.
EP0782371A3 (fr) * 1995-12-27 1998-12-09 Tibbetts Industries, Inc. Système de microphone avec in situ sensibilité réduite à l'accélération
DE19822021A1 (de) * 1998-05-15 1999-12-02 Siemens Audiologische Technik Hörgerät mit automatischem Mikrofonabgleich sowie Verfahren zum Betrieb eines Hörgerätes mit automatischem Mikrofonabgleich
DE19856798A1 (de) * 1998-12-09 1999-12-16 Siemens Audiologische Technik Höhrhilfegerät mit verbesserter Richtwirkung bei Mehrkanal-AGC-Systemen sowie Verfahren zum Betrieb eines derartigen Hörhilfegeräts
DE19849739A1 (de) * 1998-10-28 2000-05-31 Siemens Audiologische Technik Adaptives Verfahren zur Korrektur der Mikrofone eines Richtmikrofonsystems in einem Hörgerät sowie Hörgerät
WO2001001731A1 (fr) * 1999-06-24 2001-01-04 Widex A/S Procede de commande de la directionalite de la caracteristique de reception de son d'une aide auditive, et aide auditive dans laquelle est applique ledit procede
DE19954880C1 (de) * 1999-11-15 2001-01-25 Siemens Audiologische Technik Elektromagnetischer Wandler zur Schallerzeugung in Hörhilfen, insbesondere miniaturisierten elektronischen Hörgeräten
DE19948907A1 (de) * 1999-10-11 2001-02-01 Siemens Audiologische Technik Verfahren zur Signalverarbeitung in einer Hörhilfe sowie Hörhilfe
US6704422B1 (en) 2000-10-26 2004-03-09 Widex A/S Method for controlling the directionality of the sound receiving characteristic of a hearing aid a hearing aid for carrying out the method
US6751325B1 (en) 1998-09-29 2004-06-15 Siemens Audiologische Technik Gmbh Hearing aid and method for processing microphone signals in a hearing aid
DE10310579A1 (de) * 2003-03-11 2004-09-23 Siemens Audiologische Technik Gmbh Automatischer Mikrofonabgleich bei einem Richtmikrofonsystem mit wenigstens drei Mikrofonen
EP1467593A2 (fr) * 2003-04-09 2004-10-13 Siemens Audiologische Technik GmbH Microphone directionnel
US6930957B2 (en) 2000-08-11 2005-08-16 Phonak Ag Method for directional location and locating system
EP1499160A3 (fr) * 2003-07-16 2007-10-03 Siemens Audiologische Technik GmbH Prothèse auditive directionnelle
US7286677B2 (en) 1996-12-31 2007-10-23 Etymotic Research, Inc. Directional microphone assembly
US7372973B2 (en) 1998-03-02 2008-05-13 Phonak Ag Hearing aid
EP2101513A1 (fr) * 2006-11-22 2009-09-16 Funai Electric Advanced Applied Technology Research Institute Inc. Dispositif d'entrée vocale, procédé de production de ce dernier et système de traitement d'informations
US7832080B2 (en) 2007-10-11 2010-11-16 Etymotic Research, Inc. Directional microphone assembly
EP2280558A1 (fr) * 2008-05-20 2011-02-02 Funai Electric Advanced Applied Technology Research Institute Inc. Dispositif à circuit intégré, dispositif d'entrée sonore, et système de traitement d'information
CN102037738A (zh) * 2008-05-20 2011-04-27 株式会社船井电机新应用技术研究所 声音输入装置及其制造方法、以及信息处理系统
CN101543089B (zh) * 2006-11-22 2013-07-03 株式会社船井电机新应用技术研究所 语音输入装置及其制造方法、信息处理系统

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2069356C (fr) * 1991-07-17 1997-05-06 Gary Wayne Elko Filtre ajustable pour microphones differentiels
US5664021A (en) * 1993-10-05 1997-09-02 Picturetel Corporation Microphone system for teleconferencing system
US5537477A (en) * 1994-02-07 1996-07-16 Ensoniq Corporation Frequency characteristic shaping circuitry and method
JPH07298387A (ja) * 1994-04-28 1995-11-10 Canon Inc ステレオ音声入力装置
US5500902A (en) * 1994-07-08 1996-03-19 Stockham, Jr.; Thomas G. Hearing aid device incorporating signal processing techniques
US8085959B2 (en) * 1994-07-08 2011-12-27 Brigham Young University Hearing compensation system incorporating signal processing techniques
US5550923A (en) * 1994-09-02 1996-08-27 Minnesota Mining And Manufacturing Company Directional ear device with adaptive bandwidth and gain control
US5589799A (en) * 1994-09-29 1996-12-31 Tibbetts Industries, Inc. Low noise amplifier for microphone
DE19612481C2 (de) * 1996-03-29 2003-11-13 Sennheiser Electronic Elektrostatischer Wandler
US5757933A (en) 1996-12-11 1998-05-26 Micro Ear Technology, Inc. In-the-ear hearing aid with directional microphone system
US7881486B1 (en) 1996-12-31 2011-02-01 Etymotic Research, Inc. Directional microphone assembly
US6151399A (en) 1996-12-31 2000-11-21 Etymotic Research, Inc. Directional microphone system providing for ease of assembly and disassembly
US5878147A (en) * 1996-12-31 1999-03-02 Etymotic Research, Inc. Directional microphone assembly
AUPO714197A0 (en) 1997-06-02 1997-06-26 University Of Melbourne, The Multi-strategy array processor
NL1007321C2 (nl) 1997-10-20 1999-04-21 Univ Delft Tech Gehoorinrichting voor het verbeteren van de verstaanbaarheid voor slechthorenden.
US6173059B1 (en) 1998-04-24 2001-01-09 Gentner Communications Corporation Teleconferencing system with visual feedback
US20010028718A1 (en) * 2000-02-17 2001-10-11 Audia Technology, Inc. Null adaptation in multi-microphone directional system
US7155019B2 (en) * 2000-03-14 2006-12-26 Apherma Corporation Adaptive microphone matching in multi-microphone directional system
US20010038699A1 (en) * 2000-03-20 2001-11-08 Audia Technology, Inc. Automatic directional processing control for multi-microphone system
US6449216B1 (en) * 2000-08-11 2002-09-10 Phonak Ag Method for directional location and locating system
US7369669B2 (en) * 2002-05-15 2008-05-06 Micro Ear Technology, Inc. Diotic presentation of second-order gradient directional hearing aid signals
US8284970B2 (en) 2002-09-16 2012-10-09 Starkey Laboratories Inc. Switching structures for hearing aid
US7369671B2 (en) 2002-09-16 2008-05-06 Starkey, Laboratories, Inc. Switching structures for hearing aid
EP1695590B1 (fr) * 2003-12-01 2014-02-26 Wolfson Dynamic Hearing Pty Ltd. Procédé et appareil de production de signaux directionnels adaptifs
EP1643798B1 (fr) * 2004-10-01 2012-12-05 AKG Acoustics GmbH Microphone comprenant deux capsules microphoniques à gradient de pression
US9774961B2 (en) 2005-06-05 2017-09-26 Starkey Laboratories, Inc. Hearing assistance device ear-to-ear communication using an intermediate device
US8041066B2 (en) 2007-01-03 2011-10-18 Starkey Laboratories, Inc. Wireless system for hearing communication devices providing wireless stereo reception modes
US8208642B2 (en) * 2006-07-10 2012-06-26 Starkey Laboratories, Inc. Method and apparatus for a binaural hearing assistance system using monaural audio signals
JP2010520728A (ja) * 2007-03-05 2010-06-10 ジートロニクス・インコーポレーテッド 信号処理機能を有する小占有面積のマイクロホン・モジュール
US9071910B2 (en) * 2008-07-24 2015-06-30 Cochlear Limited Implantable microphone device
EP2405871B1 (fr) 2009-03-13 2018-01-10 Cochlear Limited Système de compensation pour un actionneur implantable
US8737653B2 (en) 2009-12-30 2014-05-27 Starkey Laboratories, Inc. Noise reduction system for hearing assistance devices
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof
US10003379B2 (en) 2014-05-06 2018-06-19 Starkey Laboratories, Inc. Wireless communication with probing bandwidth
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US9668065B2 (en) * 2015-09-18 2017-05-30 Sonion Nederland B.V. Acoustical module with acoustical filter
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
WO2019231632A1 (fr) 2018-06-01 2019-12-05 Shure Acquisition Holdings, Inc. Réseau de microphones à formation de motifs
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
WO2020061353A1 (fr) 2018-09-20 2020-03-26 Shure Acquisition Holdings, Inc. Forme de lobe réglable pour microphones en réseau
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
WO2020191354A1 (fr) 2019-03-21 2020-09-24 Shure Acquisition Holdings, Inc. Boîtiers et caractéristiques de conception associées pour microphones matriciels de plafond
TW202044236A (zh) 2019-03-21 2020-12-01 美商舒爾獲得控股公司 具有抑制功能的波束形成麥克風瓣之自動對焦、區域內自動對焦、及自動配置
TW202101422A (zh) 2019-05-23 2021-01-01 美商舒爾獲得控股公司 可操縱揚聲器陣列、系統及其方法
US11302347B2 (en) 2019-05-31 2022-04-12 Shure Acquisition Holdings, Inc. Low latency automixer integrated with voice and noise activity detection
CN114467312A (zh) 2019-08-23 2022-05-10 舒尔获得控股公司 具有改进方向性的二维麦克风阵列
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
USD944776S1 (en) 2020-05-05 2022-03-01 Shure Acquisition Holdings, Inc. Audio device
WO2021243368A2 (fr) 2020-05-29 2021-12-02 Shure Acquisition Holdings, Inc. Systèmes et procédés d'orientation et de configuration de transducteurs utilisant un système de positionnement local
WO2022165007A1 (fr) 2021-01-28 2022-08-04 Shure Acquisition Holdings, Inc. Système de mise en forme hybride de faisceaux audio

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938435A1 (de) * 1969-07-29 1971-02-11 Schoeps Dr Ing Karl Hoergeraet
US3875349A (en) * 1972-02-02 1975-04-01 Bommer Ag Hearing aid
US3876843A (en) * 1973-01-02 1975-04-08 Textron Inc Directional hearing aid with variable directivity
FR2500248A1 (fr) * 1981-02-13 1982-08-20 Rion Co Auxiliaire d'audition du type a porter derriere l'oreille
US4862278A (en) * 1986-10-14 1989-08-29 Eastman Kodak Company Video camera microphone with zoom variable acoustic focus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH281609A (de) * 1949-02-22 1952-03-15 Rundfunk Nordwestdeutscher Verfahren zur Änderung der Richtcharakteristik eines aus mehreren Einzelmikrophonen bestehenden Schallempfängers.
AT318033B (de) * 1972-12-20 1974-09-25 A K G Akustische U Kino Geraet Mit einem Elektret ausgerüstetes Kondensatormikrophon, insbesondere für Hörbrillen
DE2361595A1 (de) * 1973-12-11 1975-06-12 Schmitt Werner Hoergeraet mit richtmikrofon, insbesondere hoerbrille
GB1604167A (en) * 1974-09-25 1981-12-02 Ard Tech Ass Eng Microphone units
US4354059A (en) * 1979-09-11 1982-10-12 Victor Company Of Japan, Ltd. Variable-directivity microphone device
DE3134888A1 (de) * 1981-09-03 1983-03-10 Robert Bosch Gmbh, 7000 Stuttgart "hoergeraet"
SE452083C (sv) * 1983-02-25 1991-01-14 Rune Rosander Mikrofon
US4803732A (en) * 1983-10-25 1989-02-07 Dillon Harvey A Hearing aid amplification method and apparatus
JPH067707B2 (ja) * 1984-04-17 1994-01-26 松下電器産業株式会社 マイクロホン装置
JP2602642B2 (ja) * 1986-02-17 1997-04-23 アイワ株式会社 指向性マイクロホン装置
DK159357C (da) * 1988-03-18 1991-03-04 Oticon As Hoereapparat, navnlig til anbringelse i oeret
US5029215A (en) * 1989-12-29 1991-07-02 At&T Bell Laboratories Automatic calibrating apparatus and method for second-order gradient microphone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938435A1 (de) * 1969-07-29 1971-02-11 Schoeps Dr Ing Karl Hoergeraet
US3875349A (en) * 1972-02-02 1975-04-01 Bommer Ag Hearing aid
US3876843A (en) * 1973-01-02 1975-04-08 Textron Inc Directional hearing aid with variable directivity
FR2500248A1 (fr) * 1981-02-13 1982-08-20 Rion Co Auxiliaire d'audition du type a porter derriere l'oreille
US4862278A (en) * 1986-10-14 1989-08-29 Eastman Kodak Company Video camera microphone with zoom variable acoustic focus

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499699A1 (fr) * 1991-02-20 1992-08-26 Phonak Ag Prothèse auditive avec au moins deux microphones
EP0605666A1 (fr) * 1992-03-25 1994-07-13 Motorola, Inc. Microphone en ceramique piezoelectrique a annulation des vibrations
EP0605666A4 (fr) * 1992-03-25 1995-04-05 Motorola Inc Microphone en ceramique piezoelectrique a annulation des vibrations.
US6327370B1 (en) 1993-04-13 2001-12-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
EP0664071A4 (fr) * 1993-04-13 1995-05-18 Waldhauer Ruth Legal Represent Prothese auditive a systeme de commutation de microphone.
EP0664071A1 (fr) * 1993-04-13 1995-07-26 WALDHAUER, Ruth (legal representative of the deceased inventor) Prothese auditive a systeme de commutation de microphone
US5524056A (en) * 1993-04-13 1996-06-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
US7590253B2 (en) 1993-04-13 2009-09-15 Etymotic Research, Inc. Hearing aid having switchable first and second order directional responses
US6101258A (en) * 1993-04-13 2000-08-08 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system
FR2711515A1 (fr) * 1993-10-21 1995-05-05 Boucobza Fabien Dispositif d'aide à l'audition.
US6031922A (en) * 1995-12-27 2000-02-29 Tibbetts Industries, Inc. Microphone systems of reduced in situ acceleration sensitivity
EP0782371A3 (fr) * 1995-12-27 1998-12-09 Tibbetts Industries, Inc. Système de microphone avec in situ sensibilité réduite à l'accélération
US7286677B2 (en) 1996-12-31 2007-10-23 Etymotic Research, Inc. Directional microphone assembly
US7372973B2 (en) 1998-03-02 2008-05-13 Phonak Ag Hearing aid
DE19822021C2 (de) * 1998-05-15 2000-12-14 Siemens Audiologische Technik Hörgerät mit automatischem Mikrofonabgleich sowie Verfahren zum Betrieb eines Hörgerätes mit automatischem Mikrofonabgleich
DE19822021A1 (de) * 1998-05-15 1999-12-02 Siemens Audiologische Technik Hörgerät mit automatischem Mikrofonabgleich sowie Verfahren zum Betrieb eines Hörgerätes mit automatischem Mikrofonabgleich
US6751325B1 (en) 1998-09-29 2004-06-15 Siemens Audiologische Technik Gmbh Hearing aid and method for processing microphone signals in a hearing aid
DE19849739A1 (de) * 1998-10-28 2000-05-31 Siemens Audiologische Technik Adaptives Verfahren zur Korrektur der Mikrofone eines Richtmikrofonsystems in einem Hörgerät sowie Hörgerät
DE19849739C2 (de) * 1998-10-28 2001-05-31 Siemens Audiologische Technik Adaptives Verfahren zur Korrektur der Mikrofone eines Richtmikrofonsystems in einem Hörgerät sowie Hörgerät
DE19856798A1 (de) * 1998-12-09 1999-12-16 Siemens Audiologische Technik Höhrhilfegerät mit verbesserter Richtwirkung bei Mehrkanal-AGC-Systemen sowie Verfahren zum Betrieb eines derartigen Hörhilfegeräts
WO2001001731A1 (fr) * 1999-06-24 2001-01-04 Widex A/S Procede de commande de la directionalite de la caracteristique de reception de son d'une aide auditive, et aide auditive dans laquelle est applique ledit procede
AU766876B2 (en) * 1999-06-24 2003-10-23 Widex A/S A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a hearing aid for carrying out the method
WO2001001732A1 (fr) * 1999-06-24 2001-01-04 Tøpholm & Westermann APS Prothese auditive possedant des caracteristiques directionnelles pouvant etre commandees
DE19948907A1 (de) * 1999-10-11 2001-02-01 Siemens Audiologische Technik Verfahren zur Signalverarbeitung in einer Hörhilfe sowie Hörhilfe
EP1102517A2 (fr) * 1999-11-15 2001-05-23 Siemens Audiologische Technik GmbH Transducteur électro-acoustique pour prothèses acoustiques
DE19954880C1 (de) * 1999-11-15 2001-01-25 Siemens Audiologische Technik Elektromagnetischer Wandler zur Schallerzeugung in Hörhilfen, insbesondere miniaturisierten elektronischen Hörgeräten
EP1102517A3 (fr) * 1999-11-15 2008-03-05 Siemens Audiologische Technik GmbH Transducteur électro-acoustique pour prothèses acoustiques
US6930957B2 (en) 2000-08-11 2005-08-16 Phonak Ag Method for directional location and locating system
US6704422B1 (en) 2000-10-26 2004-03-09 Widex A/S Method for controlling the directionality of the sound receiving characteristic of a hearing aid a hearing aid for carrying out the method
DE10310579B4 (de) * 2003-03-11 2005-06-16 Siemens Audiologische Technik Gmbh Automatischer Mikrofonabgleich bei einem Richtmikrofonsystem mit wenigstens drei Mikrofonen
DE10310579A1 (de) * 2003-03-11 2004-09-23 Siemens Audiologische Technik Gmbh Automatischer Mikrofonabgleich bei einem Richtmikrofonsystem mit wenigstens drei Mikrofonen
EP1467593A3 (fr) * 2003-04-09 2009-12-16 Siemens Audiologische Technik GmbH Microphone directionnel
EP1467593A2 (fr) * 2003-04-09 2004-10-13 Siemens Audiologische Technik GmbH Microphone directionnel
EP1499160A3 (fr) * 2003-07-16 2007-10-03 Siemens Audiologische Technik GmbH Prothèse auditive directionnelle
EP2101513A4 (fr) * 2006-11-22 2011-09-28 Funai Eaa Tech Res Inst Inc Dispositif d'entrée vocale, procédé de production de ce dernier et système de traitement d'informations
EP2101513A1 (fr) * 2006-11-22 2009-09-16 Funai Electric Advanced Applied Technology Research Institute Inc. Dispositif d'entrée vocale, procédé de production de ce dernier et système de traitement d'informations
EP2364036A3 (fr) * 2006-11-22 2011-09-28 Funai Electric Advanced Applied Technology Research Institute Inc. Dispositif à entrée vocale, son procédé de fabrication et système de traitement des informations
CN101543089B (zh) * 2006-11-22 2013-07-03 株式会社船井电机新应用技术研究所 语音输入装置及其制造方法、信息处理系统
US8731693B2 (en) 2006-11-22 2014-05-20 Funai Electric Advanced Applied Technology Research Institute Inc. Voice input device, method of producing the same, and information processing system
US7832080B2 (en) 2007-10-11 2010-11-16 Etymotic Research, Inc. Directional microphone assembly
EP2280558A1 (fr) * 2008-05-20 2011-02-02 Funai Electric Advanced Applied Technology Research Institute Inc. Dispositif à circuit intégré, dispositif d'entrée sonore, et système de traitement d'information
CN102037738A (zh) * 2008-05-20 2011-04-27 株式会社船井电机新应用技术研究所 声音输入装置及其制造方法、以及信息处理系统
EP2280558A4 (fr) * 2008-05-20 2011-09-28 Funai Eaa Tech Res Inst Inc Dispositif à circuit intégré, dispositif d'entrée sonore, et système de traitement d'information
US8824698B2 (en) 2008-05-20 2014-09-02 Funai Electric Advanced Applied Technology Research Institute Inc. Integrated circuit device, voice input device and information processing system

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US5214709A (en) 1993-05-25
EP0466676A3 (en) 1992-07-29
ATA150090A (de) 1992-08-15
CA2046416A1 (fr) 1992-01-14
DE59104846D1 (de) 1995-04-13
DK0466676T3 (da) 1995-05-22
AT407815B (de) 2001-06-25
EP0466676B1 (fr) 1995-03-08
CA2046416C (fr) 1997-12-02

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