EP3513571A1 - Mikrofonsystem für ein kraftfahrzeug mit dynamischer richtcharakteristik - Google Patents
Mikrofonsystem für ein kraftfahrzeug mit dynamischer richtcharakteristikInfo
- Publication number
- EP3513571A1 EP3513571A1 EP17784947.8A EP17784947A EP3513571A1 EP 3513571 A1 EP3513571 A1 EP 3513571A1 EP 17784947 A EP17784947 A EP 17784947A EP 3513571 A1 EP3513571 A1 EP 3513571A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- microphone
- driver
- seat
- signals
- passenger
- 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
Links
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
-
- 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
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
- H04R2410/01—Noise reduction using microphones having different directional characteristics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
- H04R2430/23—Direction finding using a sum-delay beam-former
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
-
- 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
Definitions
- the invention relates to a microphone system for a motor vehicle according to the preamble of patent claim 1 and to a motor vehicle having such a microphone system. Furthermore, the invention relates to a method for operating a microphone system according to the preamble of claim 11.
- EP 1 695 873 A1 discloses a microphone array with four microphones in which two microphones each are assigned to a driver or front passenger. From DE 43 15 000 A1 a noise-compensated free intercom in motor vehicles is known, in which two directional microphones are installed in the region of a rearview mirror. Finally, DE 102 17 822 C1 discloses a method and a device for detecting the viewing direction of a person by means of at least one directionally selective microphone.
- DE 10 2014 013 919 A1 discloses a microphone system with three microphones arranged in the form of an isosceles triangle at respective corners of the triangle, in which the signals from the first and the second microphone are processed such that a directional characteristic directed at a driver's seat is provided and the signals from the second and third microphones are processed so as to provide a directional characteristic directed to a passenger seat. It has been found that a variation in the size of the driver or passenger entails an undesirable fluctuation in the quality of the signals provided by the microphone system.
- the invention relates to a microphone system for a motor vehicle with a microphone housing, in which a first microphone, a second microphone and a third microphone are arranged, and with a signal processing device, which is adapted to process respective signals provided by the microphones.
- the signal processing device is configured to process the signals of the first and of the second microphone in a first operating mode in such a way that a (first) driver directional characteristic oriented toward a first position of the driver's seat of the motor vehicle is provided, and / or in the first operating mode. to process the signals of the second and third microphone in such a way that a (first) passenger directional characteristic oriented toward a first position of a passenger seat of the motor vehicle is provided.
- the signal processing device is configured to process the signals of the first and the third microphone in a second operating mode such that an alternative (second) driver directional characteristic is provided, which is based on a second position of the driver's seat, which differs from the the first position of the driver's seat, is aligned, and / or in the second operating mode to process the signals of the second and third microphone such that an alternative (second) passenger directional characteristic is provided, which on a second position of the passenger seat is different from the first position of the passenger seat, is aligned.
- an alternative (second) driver directional characteristic is provided, which is based on a second position of the driver's seat, which differs from the the first position of the driver's seat, is aligned
- an alternative (second) passenger directional characteristic is provided, which on a second position of the passenger seat is different from the first position of the passenger seat, is aligned.
- the first or third microphone not used in the respective first directional characteristic directed towards the first position of the driver's seat or passenger seat can be used to provide an alternative directional characteristic, ie a second directional characteristic has a different orientation than the first directivity.
- a second directional characteristic has a different orientation than the first directivity.
- the signals from the microphones are present at the same time and can be calculated in digitized form.
- a different directional characteristic can be predetermined, for example the first and second driver and co-driver directional characteristics. It can in particular between different Operating modes, such as the first and second operating modes are automatically switched.
- an acoustic signal can be detected particularly well from the first position of the driver's seat with the corresponding first driver directing characteristic optimized to this position, and at the same time also with a changed position of the driver's seat, thus for example a driver shifts the seat according to his height so as to better access corresponding pedals, an alternative driver directivity characteristic can be provided which optimally detects an acoustic signal from the new position of the driver's seat.
- an alternative driver directivity characteristic can be provided which optimally detects an acoustic signal from the new position of the driver's seat.
- mutatis mutandis for the passenger directional characteristic In this case, no conversion is required in the microphone housing and the microphones themselves, and an additional microphone is not needed. Thus, an improved microphone system can be implemented with a particularly low cost.
- no external signal of a control element or of another system of the motor vehicle is required for selecting the corresponding directional characteristic, so that, for example, no additional networking of the microphone system with further systems of the motor vehicle is necessary for the
- the three microphones are designed as print microphones which have a ball characteristic.
- This has the advantage that the microphones are particularly cheap and simple.
- it is precisely due to the omnidirectional characteristic of the different microphones in the different operating modes that a very good directional characteristic can be achieved in each case. This would be different, for example, if one or more of the microphones already had a specific directional characteristic, which would be optimized, for example, to the first position of the driver's seat.
- the three microphones in the form of an isosceles triangle at respective corners of the triangle are arranged, wherein in particular the second microphone is arranged at the top of the triangle.
- the triangle is an obtuse-angled triangle, in particular with an angle at the apex of the triangle of at least 100 degrees.
- the signal processing device is configured to process the signal of the first microphone and a mixed signal of the second and the third microphone in a further operating mode such that a further alternative driver directional characteristic is provided, which points to a further position of the driver's seat - see the first and second position of the driver's seat is aligned.
- the signal processing device is designed to process the signal of the third microphone and a mixed signal of the first and the second microphone such that a further alternative passenger directivity characteristic is provided, which points to a further position of the passenger seat is aligned between the first and the second position of the passenger seat.
- a virtual signal of a further microphone which is respectively located between the second and third or first and second microphone, is generated.
- the position of the further microphone between the two respective other microphones, ie between the second and third or first and second microphone, by a corresponding weighting of the second and third or first and second signal in the respective Mixed signal can be adjusted.
- This can be achieved, for example, by adding the respective signals of the second and third or respectively first and second microphone, the individual signals of the respective mixed signal, to a respective weighted mixed signal.
- the further alternative directional characteristic can thus be provided from the mixed signal and the respective other signal.
- the passenger and driver Richt charactererizing can be optimized not only for a first and a second position, but for basically any intermediate positions.
- the respective weighting for the individual signals in the mixed signal can be determined automatically, for example by detecting by the signal processing device from which direction or by means of which of the different directional characteristics the best acoustic signal is detected. This can be done with little effort without additional microphones, in particular without a hardware-side adjustment of the microphone system, for example, by the digitized signals of the microphone in the signal processing device are processed accordingly.
- the signal processing device is designed to process the signals processed in accordance with a selected driver and / or passenger directional characteristic provided or an intermediate signal generated therefrom with the signals processed according to another driver and / or passenger directional characteristic and / or further processing a corresponding intermediate signal so that the selected driver or co-driver directivity characteristic is improved by at least partially, ie partially or completely, fading out or canceling out an interference signal assigned to the other directivity characteristic which represents an acoustic background noise becomes.
- This can be done, in particular, by subtracting the processed signals of another directional characteristic from the processed signals or the intermediate signal of the one selected directivity characteristic.
- This has the advantage that background noises, which are represented by the noise signal and which originate from a position other than the position of the selected directivity characteristic provided, are suppressed. This further improves the quality and flexibility of the microphone system.
- a fourth microphone is arranged in the microphone housing and the signal processing device is designed to process the signals of the first and the fourth microphone in a third operating mode in such a way that a further alternative (third) driver directivity characteristic is provided which is aligned with a third position of the driver's seat, and / or in the third mode of operation, processes the signals from the fourth and third microphones to provide another alternative (third) passenger directivity characteristic which is at a third position the passenger seat is aligned.
- the second position of the driver's seat between the first and the third position of the driver's seat is arranged and the second position of the passenger place between the first and the third position of the passenger area.
- the first, third and fourth microphone are arranged in the form of another isosceles triangle at respective corners of the further triangle, wherein the fourth microphone is arranged at the top of the triangle. Due to the symmetry, said geometry is particularly advantageous for detecting the acoustic signal from the driver's and / or passenger's seat.
- the distance of the fourth microphone from the first and the third microphone is smaller than the distance of the second microphone from the first and the third microphone.
- Processing device provide an additional driver Richt charactererizing, which is aligned as the first driver directivity to the first position of the driver's seat. The same applies mutatis mutandis to the first passenger directional characteristic, which is aligned to the first position of the Beiererplatzes and a processing of the two signals of the first and the fourth microphone.
- a particularly strong directivity of the microphone system is achieved, so that an acoustic signal from the first position of the driver or passenger seat can be detected particularly well.
- the resulting increased dynamics in the directional sensitivity of the microphone system can also be used to minimize signal quality variations with a driver or passenger size variation.
- the signal processing device is configured to process the signal of the first microphone and a mixed signal of the fourth and third microphone in a further operating mode such that a further alternative driver Richt charactererizing is provided, which on a turn further position of the driver's seat between the second and the third position of the driver's seat is aligned, and / or in the turn another mode of operation to process the signal of the third microphone and a mixed signal of the first and the fourth microphone such that in turn another alternative passenger Direction characteristics is provided, which is aligned with a further position of the passenger seat between the second and the third position of the passenger seat.
- the microphone system can again be adapted to different body sizes and usage scenarios with different possible detection directions.
- the invention also relates to a motor vehicle with a microphone system according to one of the described embodiments.
- the invention also relates to a method for operating a microphone system of a motor vehicle, wherein the microphone system comprises a microphone housing in which a first microphone, a second microphone and a third microphone are arranged, and further comprises a signal processing device which is designed to to process the respective signals provided by the microphones and in a first operational mode to process the signals of the first and second microphone such that a (first) driver Richt charactererizing aligned to a first position of a driver's seat of the motor vehicle is provided, and to process the signals of the second and third microphone in the first mode of operation such that a (first) passenger directivity characteristic oriented at a first position of a passenger seat of the motor vehicle is provided.
- a second operating mode which is in particular alternative to the first operating mode, in which the signals of the first and the third microphone are processed such that an alternative (second) driver directivity characteristic is provided, which is aligned with a second position of the driver's seat or in which the signals of the second microphone are processed such that an alternative (second) passenger directional kerrer k is provided, which is aligned with a second position of the passenger seat.
- FIG. 1 shows a motor vehicle with an exemplary embodiment of a microphone system.
- FIG. 2 is a schematic representation of exemplary directional characteristics of a first exemplary embodiment of a microphone system
- FIG. 3 shows a further schematic illustration of further exemplary directional characteristics of another exemplary embodiment of a microphone system.
- the same or functionally identical elements are provided in the figures with the same reference numerals.
- a microphone system is shown in a motor vehicle.
- the motor vehicle 1 is shown in perspective from an inside perspective.
- the microphone system 2 comprises in the example shown a microphone housing 3 with a first microphone 1 1, a second microphone 12 and a third microphone 13. These microphones are presently arranged in the form of an isosceles triangle at respective corners of the triangle.
- the second microphone 12 is arranged at the top of the triangle.
- the microphones are coupled to a signal processing device 4.
- the signal processing device 4 is now configured to process the signals of the first and second microphone 11, 12 in a first operating mode in such a way that a first driver directivity characteristic A1 aligned with a first position of a driver's seat 7 of the motor vehicle is provided, as well as the signals of the second and third microphone 12, 13 to be processed such that a directed to a first position of a passenger seat 8 of the motor vehicle 1 first passenger Richt charactererizing B1 is provided.
- the signal processing device 4 is also designed to process the signals of the first and third microphone 11, 13 in a second operating mode in such a way that an alternative second directivity characteristic A2 (FIG. 2) is provided which corresponds to a second position of the second Driver's seat 7 is aligned.
- the signal processing device 4 is embodied here, in the second operating mode, to process the signals of the second and third microphone 12, 13 such that an alternative second passenger directivity characteristic B2 (FIG. 2) is provided, which points to a second position of the passenger seat 8 is aligned.
- an alternative second passenger directivity characteristic B2 FIG. 2
- the appropriate directional characteristic A1, A2, B1, B2 can be selected for the different positions of the driver's seat 7 or the passenger's seat 8, respectively, which is favorable for a respective position of the driver's seat 7 or the passenger seat 8 relative to the microphone housing 3.
- the corresponding operating mode with the respectively optimum driver or front-wheel guiderecharacteristics A1, A2, B1, B2 can also be automatically selected by the signal processing device 4.
- the signal processing device 4 for example by the signal processing device 4, a respective signal quality of the signals processed to the different driver and / or passenger directional characteristics A1, A2, B1, B2 can be compared with one another and thus the suitable operating mode can be activated.
- Fig. 2 are exemplary directivity characteristics of the first exemplary embodiment of a microphone system.
- the microphones 1 1, 12, 13 in each case have a spherical directional characteristics 1 1 ', 12', 13 '.
- first driver and front-passenger directional characteristics A1, B2 which are via a corresponding processing, for example, adding or subtracting the signals of the first and second microphone 1 1, 12 and the third and second microphone 13, 12 for the microphone system. 2 can provide or create, here are the two second directional characteristics, namely the alternative second driver Richt charactererizing A2 and the alternative passenger directivity characteristic B2 shown. These have in the example shown an elliptical extent.
- the main axes of the respective directional characteristics A1, B1, A2, B2 run through the respective microphones, ie for the first driver directivity A1 through the first and second microphone 11, 12 and for the first passenger directivity B1 through the second and third Microphone 12, 13, and for the second directional characteristics A2, B2 through the first and third microphone 1 1, 13th
- the main axes of the first directional characteristics A1, B1 are tilted relative to the main axes of the second directional characteristics A2, B2 in the xy plane, so that the directional characteristics A1, B1, A2, B2 cover different positions of the driver or passenger seat 7, 8, respectively to let.
- a position of the driver's or passenger's seat 7, 8, which lies further forward in the x-direction and thus in the direction of travel can be covered better with the respective second directivity characteristic A2, B2.
- an acoustic signal is better detected by the microphone system 2.
- the respective other directional characteristics that is, for example, when using the second driver directivity characteristic A2, the first driver directivity characteristic A1 and / or the first passenger Rich tcha ra ktereristi k B2 and / or the alternative second co-driver Richtcha ra ktereristi k B2 can be used to detect noise from the respective directional characteristics A1, B1, B2 associated areas in the interior of the motor vehicle 1 and extinguish accordingly from the detected via the selected Richt suspecterizing A2 signal or hide.
- FIG. 3 shows a further schematic representation of further exemplary directional characteristics of another exemplary embodiment of a microphone system.
- the illustrated directional characteristics A1 to A4 are exclusively driver-directional characteristics. Due to the structural and functional geometry, however, the mutatis mutandis described below for the driver directional characteristics A1 to A4 also apply to corresponding passenger directivity characteristics, in which case the first microphone 11 is to be replaced by the third microphone 13.
- a fourth microphone 14 is now arranged in the housing 3. In this case, a straight line running through the second microphone and fourth microphone 14 intersects a line passing through the first microphone 11 and third microphone 13 at a right angle.
- the four microphones 1 1 to 14 can therefore be arranged correspondingly on a rhombus or a rhombus.
- the first, third and fourth microphone 1 1, 13, 14 in the form of another isosceles triangle with the mentioned microphones 1 1, 13, 14 at the respective corners.
- the respective microphones 1 1 to 14 here have spherical characteristics 1 1 'to 14'.
- a third alternative driver directivity characteristic A3 can now be provided by processing the signals of the first and the fourth microphone 11, 14.
- this is arranged so that a corresponding third position of the driver's seat 7, on which the third alternative driver directivity characteristic A3 is aligned, is arranged in the direction of travel, that is to say in the positive x-direction, before the second driver directivity characteristic A2.
- the second driver Richtcha ra ktereristi k A2 to the second position of the driver's seat 7 between see the first and the third position of the driver's seat 7 aligned.
- the signal processing device 4 may be configured to process the signals of the third microphone 13 and of the fourth microphone 14 in such a way that a fourth driver directivity characteristic A4 is provided as an alternative or in addition to the first driver directional characteristic A1 which is also aligned with the first position of the driver's seat 7.
- a fourth driver directivity characteristic A4 is provided as an alternative or in addition to the first driver directional characteristic A1 which is also aligned with the first position of the driver's seat 7.
- the fourth driver directivity characteristic A4 to provide it in addition to the first driver directivity characteristic A1. This makes it particularly well possible for the first position of the driver's seat 7 to have double coverage by the two driver directional characteristics A1, A4. speaking signal with particularly good quality by the signal processing device 4 to be generated.
- the signals corresponding to other directional characteristics in particular the passenger directional characteristics B1, B2 (FIG. 2), can be used by the signal processing device to generate corresponding background noises from the directions which correspond to the other directional characteristics B1, B2 correspond to suppress or filter out.
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016013042.3A DE102016013042A1 (de) | 2016-11-02 | 2016-11-02 | Mikrofonsystem für ein Kraftfahrzeug mit dynamischer Richtcharakteristik |
| PCT/EP2017/076428 WO2018082912A1 (de) | 2016-11-02 | 2017-10-17 | Mikrofonsystem für ein kraftfahrzeug mit dynamischer richtcharakteristik |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3513571A1 true EP3513571A1 (de) | 2019-07-24 |
| EP3513571B1 EP3513571B1 (de) | 2019-12-11 |
Family
ID=60120053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17784947.8A Active EP3513571B1 (de) | 2016-11-02 | 2017-10-17 | Mikrofonsystem für ein kraftfahrzeug mit dynamischer richtcharakteristik |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10623853B2 (de) |
| EP (1) | EP3513571B1 (de) |
| CN (1) | CN109997368B (de) |
| DE (1) | DE102016013042A1 (de) |
| WO (1) | WO2018082912A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017215219A1 (de) | 2017-08-31 | 2019-02-28 | Audi Ag | Mikrofonsystem für ein Kraftfahrzeug mit Richtcharakteristik und Signalverbesserung |
| DE102018210934A1 (de) * | 2018-07-03 | 2020-01-09 | Volkswagen Aktiengesellschaft | Notrufsystem eines Kraftfahrzeugs |
| US10857909B2 (en) * | 2019-02-05 | 2020-12-08 | Lear Corporation | Electrical assembly |
| CN115665606B (zh) * | 2022-11-14 | 2023-04-07 | 深圳黄鹂智能科技有限公司 | 基于四麦克风的收音方法和收音装置 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315000A1 (de) | 1993-05-06 | 1994-11-10 | Opel Adam Ag | Geräuschkompensierte Freisprechanlage in Kraftfahrzeugen |
| US6449593B1 (en) * | 2000-01-13 | 2002-09-10 | Nokia Mobile Phones Ltd. | Method and system for tracking human speakers |
| EP1206161A1 (de) * | 2000-11-10 | 2002-05-15 | Sony International (Europe) GmbH | Mikrofonanordung mit selbstanpassender Richtcharakteristik für Telefonhandapparate und Freisprechanlagen |
| DE10217822C1 (de) | 2002-04-17 | 2003-09-25 | Daimler Chrysler Ag | Verfahren und Vorrichtung zur Blickrichtungserkennung einer Person mittels wenigstens eines richtungsselektiven Mikrofons |
| EP1475997A3 (de) * | 2003-05-09 | 2004-12-22 | Harman/Becker Automotive Systems GmbH | Verfahren und System zur Kommunikationsverbesserung in einer rauschenden Umgebung |
| EP1538867B1 (de) * | 2003-06-30 | 2012-07-18 | Nuance Communications, Inc. | Freisprechanlage für ein Kraftfahrzeug |
| DE10339973A1 (de) | 2003-08-29 | 2005-03-17 | Daimlerchrysler Ag | Intelligentes akustisches Mikrofon-Frontend mit Spracherkenner-Feedback |
| EP1695873B1 (de) | 2005-02-23 | 2008-07-09 | Harman Becker Automotive Systems GmbH | Spracherkennungssytem in einem Kraftfahrzeug |
| KR100630826B1 (ko) * | 2005-06-21 | 2006-10-02 | 주식회사 현대오토넷 | 차량의 대칭 음향 시스템 및 그 제어 방법 |
| US20090055180A1 (en) * | 2007-08-23 | 2009-02-26 | Coon Bradley S | System and method for optimizing speech recognition in a vehicle |
| EP2146519B1 (de) | 2008-07-16 | 2012-06-06 | Nuance Communications, Inc. | Strahlenformungsvorverarbeitung zur Lokalisierung von Sprechern |
| US8081772B2 (en) * | 2008-11-20 | 2011-12-20 | Gentex Corporation | Vehicular microphone assembly using fractional power phase normalization |
| DE102010034237A1 (de) * | 2010-08-07 | 2011-10-06 | Daimler Ag | Mikrofonsystem und Verfahren zur Generierung einer Mikrofon-Richtwirkung in Bezug auf eine akustische Quelle innerhalb eines Kraftfahrzeugs |
| JP5545676B2 (ja) | 2011-11-07 | 2014-07-09 | 株式会社ホンダアクセス | 車室内のマイクアレイ配置構造 |
| DE102012023411A1 (de) | 2012-11-30 | 2013-06-06 | Daimler Ag | Mikrofonsystem für ein Kraftfahrzeug |
| US9497528B2 (en) | 2013-11-07 | 2016-11-15 | Continental Automotive Systems, Inc. | Cotalker nulling based on multi super directional beamformer |
| JP6195073B2 (ja) * | 2014-07-14 | 2017-09-13 | パナソニックIpマネジメント株式会社 | 収音制御装置及び収音システム |
| DE102014013919B4 (de) | 2014-09-18 | 2018-12-20 | Audi Ag | Mikrofonsystem für einen Kraftwagen, Kraftwagen mit einem Mikrofonsystem und Verfahren zum Betreiben eines Mikrofonsystems eines Kraftwagens |
| DE102015220400A1 (de) * | 2014-12-11 | 2016-06-16 | Hyundai Motor Company | Sprachempfangssystem im fahrzeug mittels audio-beamforming und verfahren zum steuern desselben |
| EP3267697A1 (de) * | 2016-07-06 | 2018-01-10 | Oticon A/s | Schätzung der ankunftsrichtung in miniaturvorrichtungen mithilfe einer schallsensoranordnung |
-
2016
- 2016-11-02 DE DE102016013042.3A patent/DE102016013042A1/de not_active Withdrawn
-
2017
- 2017-10-17 WO PCT/EP2017/076428 patent/WO2018082912A1/de not_active Ceased
- 2017-10-17 CN CN201780068931.7A patent/CN109997368B/zh active Active
- 2017-10-17 US US16/345,561 patent/US10623853B2/en active Active
- 2017-10-17 EP EP17784947.8A patent/EP3513571B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20190320259A1 (en) | 2019-10-17 |
| CN109997368A (zh) | 2019-07-09 |
| US10623853B2 (en) | 2020-04-14 |
| EP3513571B1 (de) | 2019-12-11 |
| DE102016013042A1 (de) | 2018-05-03 |
| WO2018082912A1 (de) | 2018-05-11 |
| CN109997368B (zh) | 2020-04-14 |
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