EP0499699A1 - Hearing aid with at least two microphones - Google Patents
Hearing aid with at least two microphones Download PDFInfo
- Publication number
- EP0499699A1 EP0499699A1 EP91120568A EP91120568A EP0499699A1 EP 0499699 A1 EP0499699 A1 EP 0499699A1 EP 91120568 A EP91120568 A EP 91120568A EP 91120568 A EP91120568 A EP 91120568A EP 0499699 A1 EP0499699 A1 EP 0499699A1
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- EP
- European Patent Office
- Prior art keywords
- hearing aid
- microphones
- microphone
- switch
- sound
- 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
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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
- H04R25/405—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
- H04R2410/00—Microphones
- H04R2410/01—Noise reduction using microphones having different directional characteristics
Definitions
- the present invention relates to a hearing aid with an electronic amplifier arranged in the housing with recording and playback devices for sound amplification.
- Such devices serve people with poor hearing as hearing aids in that all noises are picked up via a microphone, electronically amplified and reproduced by means of a loudspeaker which, as an outlet opening, has a tubular structure reaching into the auditory canal of the wearer.
- the hearing aid housing is shaped such that it resp. can be worn around the ear. It follows that it is a relatively small device in which only miniaturized components can be used. Both due to the small size and the positioning on the ear, volume controls and an M-T-O switch are conventionally attached to the hearing aid as control elements. Two operating modes can be selected with the M-T-O switch. Position “M” stands for microphone, position "T” for telephone (the signal is transmitted inductively); in position "O” the device is switched off.
- mainly omni-directional microphones are used as the recording device. These normally use a small opening in the hearing aid housing as a sound entry opening. As a result of the omnidirectional microphone characteristic, all noises are recorded and amplified to the same extent in a spherical manner around this opening. In particular, in conversations between a hearing aid wearer and a person at a distance from it, all surrounding sound sources interfere with the understanding, since these are amplified as background noise in the same way as the speech source. This effect increases with increasing Hearing impairment and the resulting increased sound amplification increased. In order to do justice to these cases, a few hearing aids have microphones with directional (directional) characteristics. These microphones have two separate sound entry openings.
- a club-shaped, directed sound recording area By appropriate arrangement of the two sound inlet openings, such a sound recording area can be directed such that it is in the head or.
- Direction of view of the hearing aid wearer shows. This dampens noise sources behind and next to the hearing aid wearer, for example.
- a hearing aid version is also already known in which the recording characteristic is switchable.
- one of the two sound inlet openings is either covered or left open by means of a mechanically operable screen. If one of the two openings is covered with a directional microphone, an omnidirectional characteristic is achieved.
- the screen which is very small, cannot be operated directly by the user when the hearing aid is worn, since there is no space for a correspondingly easy-to-use actuating element. Conventionally, this setting is therefore permanently preselected when fitting the hearing aid.
- the object of the present invention was to enable the hearing aid wearer himself to change the recording characteristics of the hearing aid while wearing the hearing aid on the ear. without changing the dimensions of the hearing aid.
- At least two microphones are provided as recording devices with sound entry openings arranged at a distance from one another in the hearing device and these can be connected to the amplifier either individually or in parallel, connected in each case by means of a switch.
- a special embodiment of the invention provides that the microphones are omnidirectional microphones, each with a sound inlet opening.
- a further preferred embodiment of the invention provides that the microphone used is at least one omnidirectional microphone with a sound entry opening and at least one directional microphone with at least two sound entry openings separated from one another, or that the microphones are directional microphones with at least two sound entry openings separated from one another.
- only one microphone can be connected to the amplifier input by means of the switch.
- At least one microphone is preferably connected directly to the amplifier input and at least one microphone can optionally be connected in parallel to the directly connected microphones by means of the switch.
- the switch is an electro-mechanical switch attached to the hearing aid.
- an electronic switch is used as the switch, which is operated by means of remote-controlled control electronics is controlled.
- the recording characteristic can be electronically switched on or off. Switch off additional microphones with separate sound inlets. Since such microphones can be greatly miniaturized and electronic switches can at best be integrated into the existing amplifier circuit, practically no additional space in the hearing aid is required for this function.
- the hearing aid wearer can change the recording characteristic himself at any time, which results in a considerable improvement in comfort.
- a conventional hearing device essentially has a microphone 1 as a recording device, an amplifier 2 and a playback speaker 3, as shown in FIG. Under An additional control element for controlling the amplifier 2 is possibly provided, with which the degree of amplification can be changed within a certain range.
- the microphone 1 normally has an omnidirectional recording characteristic.
- a hearing aid design As shown schematically in section in FIG. 2. Inside the hearing aid housing 5 there is a directional microphone 6 with two separate sound inlet openings 7 and 8. The reproduction is carried out by means of a loudspeaker 9, the output opening 10 of which opens into a channel 11 to be inserted into the auditory canal.
- a sliding diaphragm 12 with an opening 13 is attached to the hearing aid. In one end position of the diaphragm 12 (as shown in FIG. 2), the opening 13 lies just above the sound entry opening 8 of the microphone 6, which means that the microphone 6 has a directional, directional characteristic. In the other end position of the diaphragm 12, the sound inlet opening 8 is covered by it, and the microphone 6 has an omnidirectional characteristic.
- the panel is very small and can only be operated with a suitable tool, i.e. be moved.
- a preferred exemplary embodiment of the invention has two microphones 14 and 17 in the hearing device 5 (FIG. 3).
- one microphone is a directional microphone with two sound inlet openings 15, 16 and the other microphone 17 is an omnidirectional microphone with a sound inlet channel 18.
- the microphone 14 or the microphone 17 is optionally connected to the amplifier with an electronic switch, whereby each the corresponding recording characteristic is achieved. Any other combinations of microphones are also conceivable.
- two omnidirectional Microphones are switched in such a way that in one switch position only one microphone is connected to the amplifier and an omnidirectional recording characteristic is thus achieved.
- both microphones can be connected in parallel, whereby a directional characteristic can be achieved due to the different position of the two sound inlet openings. If necessary, both microphones are connected to their own preamplifiers, which can be set to the correct phase position.
- the combination of two directional microphones is also conceivable, it being possible to amplify the directional effect by switching on the two microphones.
- a remote-controlled control electronics is preferably used to control the electronic switches, which allows this function to be operated conveniently by means of a remote control operating device.
- Such hearing aids are also known today.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Headphones And Earphones (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Hörgerät mit im Gehäuse angeordnetem elektronischen Verstärker mit Aufnahme- und Wiedergabeeinrichtungen zur Tonverstärkung. Solche Geräte dienen Personen mit schwacher Hörfähigkeit als Hörhilfen, indem alle Geräusche über ein Mikrofon aufgenommen, elektronisch verstärkt und mittels eines Lautsprechers, welcher als Austrittsöffnung eine in den Hörkanal des Trägers reichendes rohrförmiges Gebilde besitzt, wiedergegeben werden. Das Hörgerätegehäuse ist derart geformt, dass es am resp. um das Ohr getragen werden kann. Daraus folgt, dass es sich um ein verhältnismässig kleines Gerät handelt, in welchem nur miniaturisierte Bestandteile verwendet werden können. Sowohl durch die geringe Grösse wie auch durch die Positionierung am Ohr bedingt werden herkömmlicherweise als Bedienelemente eine Lautstärkeregulierung und ein M-T-O Schalter am Hörgerät angebracht. Mit dem M-T-O Schalter können zwei Betriebsarten gewählt werden. Stellung "M" steht für Mikrofon, Stellung "T" für Telefon (das Signal wird dabei induktiv übertragen); in Stellung "O" ist das Gerät ausgeschaltet.The present invention relates to a hearing aid with an electronic amplifier arranged in the housing with recording and playback devices for sound amplification. Such devices serve people with poor hearing as hearing aids in that all noises are picked up via a microphone, electronically amplified and reproduced by means of a loudspeaker which, as an outlet opening, has a tubular structure reaching into the auditory canal of the wearer. The hearing aid housing is shaped such that it resp. can be worn around the ear. It follows that it is a relatively small device in which only miniaturized components can be used. Both due to the small size and the positioning on the ear, volume controls and an M-T-O switch are conventionally attached to the hearing aid as control elements. Two operating modes can be selected with the M-T-O switch. Position "M" stands for microphone, position "T" for telephone (the signal is transmitted inductively); in position "O" the device is switched off.
Bekannterweise werden hauptsächlich omnidirketionale Mikrofone als Aufnahmeeinrichtung verwendet. Diese benutzen normalerweise eine kleine Öffnung im Hörgerätegehäuse als Schalleintrittsöffnung. Dabei werden infolge der omnidirektionalen Mikrofoncharakteristik alle Geräusche kugelförmig um diese Öffnung gleichstark aufgenommen und verstärkt. Insbesondere bei Gesprächen zwischen einem Hörgeräteträger und einer im Abstand dazu befindlichen Person stören alle rundherum befindlichen Schallquellen das Verständnis, da diese als Nebengeräusche ebenfalls gleich wie die Sprachquelle verstärkt werden. Dieser Effekt wird mit steigender Hörschwäche und der dadurch bedingten grösseren Tonverstärkung noch gesteigert. Um diesen Fällen gerecht zu werden besitzen vereinzelt Hörgeräte Mikrofone mit direktionaler (gerichteter) Charakteristik. Diese Mikrofone besitzen zwei voneinander getrennte Schalleintrittsöffnungen. Damit ergeben sich je nach Eintreffwinkel auf die Eintrittsöffnungsanordnung unterschiedliche Eintreffzeiten der Schallwellen, was einen keulenförmigen,gerichteten Schallaufnahmebereich zur Folge hat. Durch entsprechende Anordnung der beiden Schalleintrittsöffnungen kann ein solcher Schallaufnahmebereich derart gerichtet werden, dass er in Kopf- resp. Blickrichtung des Hörgeräteträgers zeigt. Damit werden beispielsweise Geräuschquellen hinter und neben dem Hörgeräteträger gedämpft.As is known, mainly omni-directional microphones are used as the recording device. These normally use a small opening in the hearing aid housing as a sound entry opening. As a result of the omnidirectional microphone characteristic, all noises are recorded and amplified to the same extent in a spherical manner around this opening. In particular, in conversations between a hearing aid wearer and a person at a distance from it, all surrounding sound sources interfere with the understanding, since these are amplified as background noise in the same way as the speech source. This effect increases with increasing Hearing impairment and the resulting increased sound amplification increased. In order to do justice to these cases, a few hearing aids have microphones with directional (directional) characteristics. These microphones have two separate sound entry openings. Depending on the angle of incidence on the inlet opening arrangement, this results in different arrival times of the sound waves, which results in a club-shaped, directed sound recording area. By appropriate arrangement of the two sound inlet openings, such a sound recording area can be directed such that it is in the head or. Direction of view of the hearing aid wearer shows. This dampens noise sources behind and next to the hearing aid wearer, for example.
Es ist ebenfalls bereits eine Hörgeräteausführung bekannt, bei welcher die Aufnahmecharakteristik umschaltbar vorgesehen ist. Bei dieser Lösung wird eine der beiden Schalleintrittsöffnungen mittels einer mechanisch bedienbaren Blende wahlweise abgedeckt oder offengelassen. Wird bei einem direktionalen Mikrofon eine der beiden Öffnungen abgedeckt, so wird eine omnidirektionale Charakteristik erreicht. Die Blende, welche sehr klein ausgeführt ist, kann im getragenen Zustand des Hörgerätes vom Benutzer nicht direkt bedient werden, da der Platz für ein entsprechend gut bedienbares Betätigungselement fehlt. Herkömmlicherweise wird diese Einstellung daher beim Anpassen des Hörgerätes fest vorgewählt.A hearing aid version is also already known in which the recording characteristic is switchable. In this solution, one of the two sound inlet openings is either covered or left open by means of a mechanically operable screen. If one of the two openings is covered with a directional microphone, an omnidirectional characteristic is achieved. The screen, which is very small, cannot be operated directly by the user when the hearing aid is worn, since there is no space for a correspondingly easy-to-use actuating element. Conventionally, this setting is therefore permanently preselected when fitting the hearing aid.
Die Aufgabe der vorliegenden Erfindung bestand darin, dem Hörgeräteträger selbst ein Ändern der Aufnahmecharakteristik des Hörgerätes während des Tragens des Hörgerätes am Ohr zu ermöglichen. ohne das Hörgerät in seinen Abmessungen zu verändern.The object of the present invention was to enable the hearing aid wearer himself to change the recording characteristics of the hearing aid while wearing the hearing aid on the ear. without changing the dimensions of the hearing aid.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass wenigstens zwei Mikrofone als Aufnahmeeinrichtung mit im Abstand zueinander angeordneten Schalleintrittsöffnungen im Hörgerät vorgesehen sind und diese wahlweise mittels eines Schalters jeweils einzeln oder parallel verbunden an den Verstärker anschliessbar sind.This object is achieved according to the invention in that at least two microphones are provided as recording devices with sound entry openings arranged at a distance from one another in the hearing device and these can be connected to the amplifier either individually or in parallel, connected in each case by means of a switch.
Eine besondere Ausführungsform der Erfindung sieht vor, dass die Mikrofone omnidirektionale Mikrofone mit jeweils einer Schalleintrittsöffnung sind.A special embodiment of the invention provides that the microphones are omnidirectional microphones, each with a sound inlet opening.
Eine weitere bevorzugte Ausführungsform der Erfindung sieht vor, dass als Mikrofon wenigstens ein omnidirektionales Mikrofone mit einer Schalleintrittsöffnung und wenigstens ein direktionales Mikrofon mit wenigstens zwei voneinander getrennten Schalleintrittssöffnungen verwendet werden, oder dass die Mikrofone direktionale Mikrofone mit jeweils wenigstens zwei voneinander getrennten Schalleintrittsöffnung sind.A further preferred embodiment of the invention provides that the microphone used is at least one omnidirectional microphone with a sound entry opening and at least one directional microphone with at least two sound entry openings separated from one another, or that the microphones are directional microphones with at least two sound entry openings separated from one another.
In einer weiteren Ausführungsform der Erfindung ist jeweils nur ein Mikrofon mittels des Schalters mit dem Verstärkereingang verbindbar.In a further embodiment of the invention, only one microphone can be connected to the amplifier input by means of the switch.
Vorzugsweise ist mindestens ein Mikrofon direkt an den Verstärkereingang angeschlossen und ist mindestens ein Mikrofon mittels des Schalters parallel zu den direkt angeschlossenen Mikrofonen wahlweise zugeschaltbar.At least one microphone is preferably connected directly to the amplifier input and at least one microphone can optionally be connected in parallel to the directly connected microphones by means of the switch.
In einer weiteren Ausführungsform der Erfindung ist der Schalter ein am Hörgerät angebrachter elektro-mechanischer Schalter.In a further embodiment of the invention, the switch is an electro-mechanical switch attached to the hearing aid.
In einer besonders bevorzugten Ausführungsform der Erfindung wird als Schalter ein elektronischer Schalter verwendet, welcher mittels einer fernbedienten Steuerelektronik gesteuert wird.In a particularly preferred embodiment of the invention, an electronic switch is used as the switch, which is operated by means of remote-controlled control electronics is controlled.
Durch die erfindungsgemässe Anordnung von mehr als einem Mikrofon lässt sich die Aufnahmecharakteristik elektronisch durch Zuschalten resp. Ausschalten weiterer Mikrofone mit getrennten Schalleintrittssöffnungen erreichen. Da solche Mikrofone stark miniaturisiert werden können und elektronische Schalter allenfalls in die vorhandenen Verstärkerschaltung integriert werden können, wird praktisch kein zusätzlicher Raum im Hörgerät für diese Funktion benötigt. Durch den Einsatz der erfindungsgemässen Anordnung in ferngesteuert bedienbaren Hörgeräten, welche eine Steuerelektronik mit Empfänger beinhalten, kann damit die Änderung der Aufnahmecharakteristik durch den Hörgeräteträger jederzeit selbst erfolgen, was eine erheblichen Komfortverbesserung zur Folge hat.Due to the arrangement of more than one microphone according to the invention, the recording characteristic can be electronically switched on or off. Switch off additional microphones with separate sound inlets. Since such microphones can be greatly miniaturized and electronic switches can at best be integrated into the existing amplifier circuit, practically no additional space in the hearing aid is required for this function. By using the arrangement according to the invention in hearing aids which can be operated remotely and which contain control electronics with a receiver, the hearing aid wearer can change the recording characteristic himself at any time, which results in a considerable improvement in comfort.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand von Zeichnungen noch näher erläutert.An embodiment of the invention is explained in more detail below with reference to drawings.
Es zeigen
- Fig. 1 das Blockschaltbild eines herkömmlichen Hörgerätes mit einem omnidirektionalen Mikrofon;
- Fig. 2 den schematischen Schnitt durch ein herkömmliches Hörgerät mit mechanisch bedienter Blende vor einem direktionalen Mikrofon;
- Fig. 3 den schematischen Schnitt durch ein erfindungsgemässes Hörgerät mit je einem direktionalen und einem omnidirektionalen Mikrofon.
- 1 shows the block diagram of a conventional hearing aid with an omnidirectional microphone;
- 2 shows the schematic section through a conventional hearing aid with a mechanically operated aperture in front of a directional microphone;
- 3 shows the schematic section through a hearing device according to the invention, each with a directional and an omnidirectional microphone.
Ein herkömmliches Hörgerät weist im Wesentlichen ein Mikrofon 1 als Aufnahmeeinrichtung, einen Verstärker 2 und einen Wiedergabelautsprecher 3 auf, wie in Fig.1 gezeigt. Unter Umständen ist ein zusätzliches Bedienorgan zur Steuerung des verstärkers 2 vorgesehen, womit der Verstärkungsgrad in einem gewissen Bereich verändert werden kann. Das Mikrofon 1 weist dabei normalerweise eine omnidirektionale Aufnahmecharakteristik auf.A conventional hearing device essentially has a microphone 1 as a recording device, an
Um in gewissen Fällen eine gerichtete Aufnahmecharakteristik zu erzielen, existiert eine Hörgeräteausführung, wie schematisch in Fig. 2 im Schnitt dargestellt. Im Innern des Hörgerätegehäuses 5 befindet sich ein direktionales Mikrofon 6 mit zwei getrennten Schalleintrittsöffnungen 7 und 8. Die Wiedergabe erfolgt mittels eines Lautsprechers 9, dessen Ausgangsöffnung 10 in einen in den Gehörgang einzuführenden Kanal 11 mündet. Am Hörgerät ist eine verschiebbare Blende 12 mit einer Öffnung 13 angebracht. In der einen Endposition der Blende 12 (wie dargestellt in Fig. 2) liegt die Öffnung 13 gerade über der Schalleintrittsöffnung 8 des Mikrofons 6, womit das Mikrofon 6 eine direktionale, gerichtete Charakteristik aufweist. In der anderen Endposition der Blende 12 wird die Schalleintrittsöffnung 8 durch sie abgedeckt, und das Mikrofon 6 weist eine omnidirektionale Charakteristik auf. Die Blende ist sehr klein ausgeführt und kann praktisch nur mit einem geeigneten Werkzeug bedient, d.h. verschoben werden.In order to achieve a directional recording characteristic in certain cases, there is a hearing aid design, as shown schematically in section in FIG. 2. Inside the
Ein bevorzugtes Ausführungsbeispiel der Erfindung weist zwei Mikrofone 14 und 17 im Hörgerät 5 auf (Fig. 3). Dabei ist beispielsweise das eine Mikrofon ein dirketionales Mikrofon mit zwei Schalleintrittsöffnungen 15,16 und das andere Mikrofon 17 ein omnidirektionales Mikrofon mit einem Schalleintrittskanal 18. Nun wird beispielsweise mit einem elektronischen Umschalter wahlweise das Mikrofon 14 oder das Mikrofon 17 mit dem Verstärker verbunden, wodurch jeweils die entsprechende Aufnahmecharakteristik erreicht wird. Denkbar sind auch beliebige andere Kombinationen von Mikrofonen. So können beispielsweise zwei omnidirektionale Mikrofone derart geschaltet werden, dass in einer Schalterstellung nur ein Mikrofon mit dem Verstärker verbunden ist und damit eine omnidirektionale Aufnahmecharakteristik erzielt wird. In einer zweiten Schalterstellung können beide Mikrofone parallel geschaltet werden, wodurch sich durch die unterschiedliche Lage der beiden Schalleintrittsöffnungen eine gerichtete Charakteristik erzielen lässt. Gegebenenfalls werden beiden Mikrofonen eigene Vorverstärker zugeschaltet, welche auf die korrekte Phasenlage eingestellt werden können.A preferred exemplary embodiment of the invention has two
Ebenfalls denkbar ist die Kombination von zwei direktionalen Mikrofonen, wobei durch die Zuschaltung beider Mikrofone eine Verstärkung des Richteffektes erzielt werden kann.The combination of two directional microphones is also conceivable, it being possible to amplify the directional effect by switching on the two microphones.
Vorzugsweise wird zur Steuerung der elektronischen Schalter eine fernbediente Steuerelektronik verwendet, welche eine bequeme Bedienung dieser Funktion mittels eines Fernsteuerbediengerätes erlaubt. Derartige Hörgeräte sind heute ebenfalls bereits bekannt.A remote-controlled control electronics is preferably used to control the electronic switches, which allows this function to be operated conveniently by means of a remote control operating device. Such hearing aids are also known today.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CH515/91A CH681411A5 (en) | 1991-02-20 | 1991-02-20 | |
CH515/91 | 1991-02-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0499699A1 true EP0499699A1 (en) | 1992-08-26 |
EP0499699B1 EP0499699B1 (en) | 1996-02-28 |
Family
ID=4188773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP91120568A Expired - Lifetime EP0499699B1 (en) | 1991-02-20 | 1991-11-29 | Hearing aid with at least two microphones |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0499699B1 (en) |
AT (1) | ATE134814T1 (en) |
CH (1) | CH681411A5 (en) |
DE (1) | DE59107476D1 (en) |
DK (1) | DK0499699T3 (en) |
ES (1) | ES2085405T3 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274111A (en) * | 1992-04-07 | 1993-12-28 | American Home Products Corporation | Trifluoromethyl substituted 1H-pyrazoles and derivatives thereof |
FR2711515A1 (en) * | 1993-10-21 | 1995-05-05 | Boucobza Fabien | Hearing-aid device |
EP0665246A2 (en) † | 1994-01-24 | 1995-08-02 | Arizona Chemical Company | Thermal polymerization of dicyclopentadiene |
EP0847227A2 (en) * | 1998-03-02 | 1998-06-10 | Phonak Ag | Hearing aid |
DE19810043A1 (en) * | 1998-03-09 | 1999-09-23 | Siemens Audiologische Technik | Hearing aid with a directional microphone system |
WO2000065873A1 (en) * | 1999-04-28 | 2000-11-02 | Gennum Corporation | Programmable multi-mode, multi-microphone system |
WO2001076319A2 (en) * | 2000-03-31 | 2001-10-11 | Clarity, L.L.C. | Method and apparatus for voice signal extraction |
US6751325B1 (en) | 1998-09-29 | 2004-06-15 | Siemens Audiologische Technik Gmbh | Hearing aid and method for processing microphone signals in a hearing aid |
US7013014B2 (en) | 2002-12-20 | 2006-03-14 | Siemens Audiologische Technik Gmbh | Hearing device system with behind-the-ear hearing aid devices fashioned side-specific |
US7103191B1 (en) | 1993-04-13 | 2006-09-05 | Etymotic Research, Inc. | Hearing aid having second order directional response |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635229C2 (en) * | 1996-08-30 | 2001-04-26 | Siemens Audiologische Technik | Direction sensitive hearing aid |
US6798890B2 (en) | 2000-10-05 | 2004-09-28 | Etymotic Research, Inc. | Directional microphone assembly |
DE19852758C2 (en) * | 1998-11-16 | 2001-05-23 | Siemens Audiologische Technik | Hearing aid portable behind the ear |
DE19948907A1 (en) * | 1999-10-11 | 2001-02-01 | Siemens Audiologische Technik | Signal processing in hearing aid |
US7832080B2 (en) | 2007-10-11 | 2010-11-16 | Etymotic Research, Inc. | Directional microphone assembly |
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US3875349A (en) * | 1972-02-02 | 1975-04-01 | Bommer Ag | Hearing aid |
US3975599A (en) * | 1975-09-17 | 1976-08-17 | United States Surgical Corporation | Directional/non-directional hearing aid |
FR2500248A1 (en) * | 1981-02-13 | 1982-08-20 | Rion Co | AUXILIARY HEARING TYPE TO BE CARRIED BEHIND THE EAR |
WO1990008448A1 (en) * | 1989-01-11 | 1990-07-26 | Tøpholm & Westermann APS | Remote-controlled, programmable hearing aid system |
EP0466676A2 (en) * | 1990-07-13 | 1992-01-15 | VIENNATONE Gesellschaft m.b.H. | Hearing aid with a directive microphone having variable directivity |
-
1991
- 1991-02-20 CH CH515/91A patent/CH681411A5/de not_active IP Right Cessation
- 1991-11-29 DE DE59107476T patent/DE59107476D1/en not_active Expired - Lifetime
- 1991-11-29 EP EP91120568A patent/EP0499699B1/en not_active Expired - Lifetime
- 1991-11-29 DK DK91120568.0T patent/DK0499699T3/en not_active Application Discontinuation
- 1991-11-29 ES ES91120568T patent/ES2085405T3/en not_active Expired - Lifetime
- 1991-11-29 AT AT91120568T patent/ATE134814T1/en not_active IP Right Cessation
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DE1938435A1 (en) * | 1969-07-29 | 1971-02-11 | Schoeps Dr Ing Karl | Hearing aid |
US3875349A (en) * | 1972-02-02 | 1975-04-01 | Bommer Ag | Hearing aid |
US3975599A (en) * | 1975-09-17 | 1976-08-17 | United States Surgical Corporation | Directional/non-directional hearing aid |
FR2500248A1 (en) * | 1981-02-13 | 1982-08-20 | Rion Co | AUXILIARY HEARING TYPE TO BE CARRIED BEHIND THE EAR |
WO1990008448A1 (en) * | 1989-01-11 | 1990-07-26 | Tøpholm & Westermann APS | Remote-controlled, programmable hearing aid system |
EP0466676A2 (en) * | 1990-07-13 | 1992-01-15 | VIENNATONE Gesellschaft m.b.H. | Hearing aid with a directive microphone having variable directivity |
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US7103191B1 (en) | 1993-04-13 | 2006-09-05 | Etymotic Research, Inc. | Hearing aid having second order directional response |
FR2711515A1 (en) * | 1993-10-21 | 1995-05-05 | Boucobza Fabien | Hearing-aid device |
EP0665246B2 (en) † | 1994-01-24 | 2004-04-28 | Arizona Chemical Company | Thermal polymerization of dicyclopentadiene |
EP0665246A2 (en) † | 1994-01-24 | 1995-08-02 | Arizona Chemical Company | Thermal polymerization of dicyclopentadiene |
EP0847227A3 (en) * | 1998-03-02 | 1998-10-21 | Phonak Ag | Hearing aid |
US6574343B1 (en) | 1998-03-02 | 2003-06-03 | Phonak Ag | Hearing aid |
WO1999045744A1 (en) * | 1998-03-02 | 1999-09-10 | Phonak Ag | Hearing aid |
EP0847227A2 (en) * | 1998-03-02 | 1998-06-10 | Phonak Ag | Hearing aid |
US7372973B2 (en) | 1998-03-02 | 2008-05-13 | Phonak Ag | Hearing aid |
DE19810043A1 (en) * | 1998-03-09 | 1999-09-23 | Siemens Audiologische Technik | Hearing aid with a directional microphone system |
US6424721B1 (en) | 1998-03-09 | 2002-07-23 | Siemens Audiologische Technik Gmbh | Hearing aid with a directional microphone system as well as method for the operation thereof |
US6751325B1 (en) | 1998-09-29 | 2004-06-15 | Siemens Audiologische Technik Gmbh | Hearing aid and method for processing microphone signals in a hearing aid |
WO2000065873A1 (en) * | 1999-04-28 | 2000-11-02 | Gennum Corporation | Programmable multi-mode, multi-microphone system |
WO2001076319A2 (en) * | 2000-03-31 | 2001-10-11 | Clarity, L.L.C. | Method and apparatus for voice signal extraction |
WO2001076319A3 (en) * | 2000-03-31 | 2002-12-27 | Clarity L L C | Method and apparatus for voice signal extraction |
US7013014B2 (en) | 2002-12-20 | 2006-03-14 | Siemens Audiologische Technik Gmbh | Hearing device system with behind-the-ear hearing aid devices fashioned side-specific |
Also Published As
Publication number | Publication date |
---|---|
EP0499699B1 (en) | 1996-02-28 |
ES2085405T3 (en) | 1996-06-01 |
CH681411A5 (en) | 1993-03-15 |
DK0499699T3 (en) | 1996-03-18 |
DE59107476D1 (en) | 1996-04-04 |
ATE134814T1 (en) | 1996-03-15 |
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