EP1470735A2 - Verfahren zur bestimmung einer akustischen umgebungssituation, anwendung des verfahrens und ein hörhilfegerät - Google Patents
Verfahren zur bestimmung einer akustischen umgebungssituation, anwendung des verfahrens und ein hörhilfegerätInfo
- Publication number
- EP1470735A2 EP1470735A2 EP02706499A EP02706499A EP1470735A2 EP 1470735 A2 EP1470735 A2 EP 1470735A2 EP 02706499 A EP02706499 A EP 02706499A EP 02706499 A EP02706499 A EP 02706499A EP 1470735 A2 EP1470735 A2 EP 1470735A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- kin
- kil
- processing
- classification
- class information
- 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
- H04R25/00—Electric hearing aids
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
Definitions
- the present invention relates to a method for determining an acoustic environmental situation, an application of the method, a device for determining the acoustic environmental situation and a hearing aid.
- the hearing program can be selected either using the remote control or using a switch on the hearing aid itself. Switching between different hearing programs is, however, troublesome, if not impossible, for many users. It is not always easy for experienced hearing aid users to determine which program offers the best comfort and the best speech intelligibility at which time. Automatic detection of the acoustic environment and the associated automatic switching of the hearing program in the hearing aid is therefore desirable.
- BESTATIGUNGSKOPIE Various methods for the automatic classification of acoustic environmental situations are currently known. In all of these methods, the input signal, which can come from one or more microphones in the hearing aid, is different
- a pattern recognizer uses an algorithm to make a decision about the belonging of the analyzed input signal to a certain acoustic environment.
- the different known methods differ on the one hand by the different features that are used in the description of the acoustic environment (signal analysis), and on the other hand by the pattern recognizer used that classifies the features (signal identification).
- Determination of the acoustic surrounding situation known. It is a one-step processing of an acoustic input signal in a feature extraction unit and a classification unit connected downstream thereof, in which the extracted features are classified to generate class information.
- good results are obtained, particularly when using auditory-based features.
- An improvement is particularly in the
- noise class noise for example, contains a wide variety of sounds such as background conversations, train station noise, hair dryers, and the noise class music includes pop music, classical music, individual instruments, vocals, etc.
- the present invention is therefore based on the object of specifying a method for determining an acoustic ambient situation which is more robust and more precise than the known methods. This object is achieved by the measures specified in claim 1.
- Advantageous embodiments of the invention, an application of the method, a device and a hearing aid are specified in further claims.
- an acoustic input signal in a multi-stage process which consists of at least two classification levels, each level preferably consisting of one
- Extraction phase and an identification phase is processed, an extremely robust and accurate classification of the current acoustic environment is obtained.
- the method according to the invention can successfully avoid incorrect classification of pop music into the "speech in noise" category.
- the method according to the invention also enables a general noise class, for example noise, to be subdivided into subclasses, such as traffic noise or background noise for conversations. Special situations, such as those that occur in the interior of an automobile (“in-the-car noise”), can also be recognized. In general, room properties can be identified and taken into account accordingly in the further processing of important signal components. It has been shown that the method according to the invention also makes it possible to localize the sources of noise, which has made it possible to determine the presence of a detect specific noise source in several other noise sources.
- Fig. 1 shows a known single-stage device for
- FIG. 2 shows a first embodiment of a device according to the invention with two processing stages
- FIG. 3 shows a second, general embodiment of a multi-stage device according to the invention
- FIG. 5 shows a fourth, general embodiment of a multi-stage device according to the invention
- FIG. 6 shows a simplified embodiment compared to the two-stage embodiment according to FIG. 2 and
- FIG. 7 shows a hearing aid with a multi-stage device according to the invention according to FIGS. 2 to 6.
- 1 shows a known single-stage device for determining the acoustic environmental situation, the device consisting of a series connection of a feature extraction unit F, a classification unit C and a post-processing unit P.
- An acoustic input signal IN which was recorded with a microphone, for example, is the
- Feature extraction unit F is applied, in which characteristic features are extracted.
- Amplitude histogram proposed to achieve the same goal. Finally, the feature extraction was also examined and applied by analyzing different modulation frequencies.
- the features M extracted in the feature extraction unit F are applied to the classification unit C, which is basically one of the known ones for the noise classification
- Pattern identification methods are used. So-called distance estimators, Bayesian classifiers, fuzzy logic systems or neurons are particularly suitable.
- Processing steps receive class information KI, which may be fed to a post-processing unit P for any cleanup of the class membership. Subsequently, adjusted class information KI 1 is obtained .
- FIG. 2 shows a first embodiment variant of a device according to the invention. It is a device with two process stages S1 and S2, with each feature level S1, S2 each containing a feature extraction unit F1 or F2 and a classification unit C1 or C2.
- the original input signal IN is supplied to both process stages S1 and S2, namely both the feature extraction unit F1 and the feature extraction unit F2, which are each operatively connected to the corresponding classification unit C1 or C2 in the sequence.
- class information KI1 which is obtained on the basis of calculations in the classification unit C1 of the first method step S1, the
- Classification unit C2 of the second method stage S2 is influenced, in such a way that, for example, one of several possible pattern identification methods is selected and used for the noise classification in the classification unit C2 of the second method stage S2.
- the characteristic extraction unit F1 provides the characteristics tonality, spectral center of gravity (CGAV: spectral center of gravity) and fluctuation of the spectral
- CGFS Center of gravity
- Classification unit Cl in which an HMM (Hidden Markov Model) classifier is used, classified, wherein the input signal IN is divided into one of the following classes with the aid of the HMM classification: "speech", “speech in noise”, “noise” or "music”. This is called class information KI.
- the result of the first processing stage S1 is applied to the classification unit C2 of the processing stage S2, in which a second feature set is extracted using the feature extraction unit F2.
- the additional characteristic variance of the harmonic structure (pitch) - also referred to below as Pitchvar - is extracted.
- the result of the first processing stage S1 is checked and, if necessary, corrected using a rule-based classifier in the classification unit C2.
- the rule-based classifier contains only a few simple heuristic decisions, which are based on the four characteristics and are based on the following considerations:
- the tonality characteristic is used for correction in each class if the characteristic values lie completely outside an admissible value range of the class information KII, which is in the first classification unit C1 - i.e. by the HMM classifier.
- the tonality for "music” is high, for "speech” in the middle range, for “speech in noise” a little lower and for “noise” deep. For example, if an input signal IN by the
- Classification unit Cl falls into the "language” class, it is then expected that corresponding features, which have been determined in the feature extraction unit F1, have indicated to the classification unit Cl that the relevant signal component fluctuates in the input signal IN scark. If, on the other hand, the tonality for this input signal IN is very low, it is most likely not “speech” but “speech in noise”. Similar considerations can be made for the other three characteristics, namely the variance of the harmonic structure
- the rules for the rule-based classifier which are used in the classification unit C2, can be formulated as follows:
- FIG. 3 A further embodiment is shown in a general representation in FIG. 3. It is a processing method with n stages.
- each of the processing stages Sl to Sn has a feature extraction unit Fl to Fn and a classification unit Cl to Cn connected downstream thereof for generating the respective class information KIl to KIn. If necessary, Sl to Sn is in each or in individual processing stages
- the embodiment variant shown in FIG. 3 is particularly suitable for a so-called coarse-fine classification.
- a result obtained in processing stage i is refined in a subsequent processing stage i + 1.
- a rough classification is thus carried out in a higher processing level, with a rough classification based on more specific feature extractions and / or classification methods being carried out in a lower processing level on the basis of the rough classification.
- This process can also be viewed as generation of hypotheses in a higher process level, which are checked, ie confirmed or rejected in a lower process step.
- hypotheses that have been created in a higher level of procedure can also be entered with other information, in particular with manual means such as remote controls or switches.
- this is indicated, representative of the first processing stage S1, by means of a manipulated variable ST, by means of which, for example, the calculations in the classification unit C1 can be overridden.
- the manipulated variable can also be a classification unit C2 to Cn or one
- Postprocessing units Pl to Pn are fed to another process stage S1 to Sn.
- Processing level Sl to Sn which, however, is not mandatory, can be assigned to a task, such as, for example: a rough classification, a fine classification, a localization of a noise source, a check whether a specific noise source, e.g. B. automotive noise in a vehicle, or an extraction of certain signal components from an input signal, for. B. Elimination of echo taking into account spatial characteristics.
- the individual process steps S1 to Sn are therefore individual in the sense that in them different characteristics are extracted and different classification methods are used.
- an individual one is provided in a first processing stage S1
- the localization of the sound source carried out in the first processing stage can be followed by directional filtering, for example using multi-microphone technology.
- a feature extraction unit Fl to Fn can be divided among several classification units Cl to Cn, i.e. the results of one
- Feature extraction units F1 to Fn can be used by several classification units C1 to Cn. It is also conceivable that a classification unit C1 to Cn is used in several processing stages S1 to Sn. Finally, it can be provided that the class information KIl to KIn or the cleaned class information KIl 'to KIn' obtained in the different processing stages S1 to Sn are weighted differently in order to maintain the final classification. 4 shows a further embodiment of the invention, in which a plurality of processing stages S1 to Sn are used. In contrast to the embodiment according to FIG. 3, the embodiment according to FIG. 3, the embodiment according to FIG. 3, the
- Class information KIl to KIn not only used in the immediately following processing stages, but possibly in all subordinate processing stages.
- the results from previous processing stages S1 to Sn can also have their effects on the subsequent feature extraction units F1 to Fn or on the features to be extracted.
- postprocessing units Pl to Pn prepare the intermediate results of the classification and make them available as cleaned class information KIl 1 to KIn '.
- FIG. 5 shows a further embodiment variant of a multi-stage device for determining the acoustic ambient situation, again in a general form.
- a multi-stage device for determining the acoustic ambient situation, again in a general form.
- FIGS. 3 and 4 several processing stages S1 to Sn with feature extraction units Fl to Fn and classification units Cl to Cn are shown.
- the class information KIl to KIn obtained in each processing step Sl to Sn becomes one Decision unit FD supplied, in which the final classification is carried out by generating the class information KI.
- the decision unit FD it is optionally provided to generate feedback signals which are based on the decision unit FD
- the information is exchanged via a wired or a wireless transmission link.
- the first processing stage S1 consists of the feature extraction unit F1 and the
- Classification unit Cl In the second processing stage S2, the same features are used that have already been used in the first method stage S1. A recalculation of the features in process stage S2 is therefore unnecessary, and the results of the feature extraction unit F1 of the first process stage S1 can be used in the second process stage S2. In the second method stage S2, only the classification method is changed, depending on the class information KII of the first processing stage S1.
- FIG. 7 shows the use of the device according to the invention in a hearing aid device which essentially has a transmission unit 200.
- 100 denotes a multi-stage processing unit which is implemented according to one of the embodiment variants shown in FIGS. 2 to 6.
- the input signal IN is applied to both the multi-stage processing unit 100 and the transmission unit 200, in which the acoustic input signal IN is processed with the aid of the class information KI1 to KIn or KIl 'to KIn' generated in the multi-stage processing unit 100. It is preferably provided to select a suitable hearing program based on the acoustic environment situation determined, as is the case in FIG Introduction and has been described in the international patent application WO 01/20 965.
- FIG. 300 denotes a manual input unit, with the aid of which - for example via a radio link, as can be seen schematically in FIG. 7 - may act both on the multi-stage processing unit 100 in the manner already explained or on the transmission unit 200.
- the hearing aid 200 reference is made to the explanations in WO 01/20 965, whose
- the preferred application of the method according to the invention for determining the acoustic ambient situation is the selection of a hearing program in a hearing aid device.
Landscapes
- 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)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CH2002/000049 WO2002032208A2 (de) | 2002-01-28 | 2002-01-28 | Verfahren zur bestimmung einer akustischen umgebungssituation, anwendung des verfahrens und ein hörhilfegerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1470735A2 true EP1470735A2 (de) | 2004-10-27 |
| EP1470735B1 EP1470735B1 (de) | 2019-08-21 |
Family
ID=4358282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02706499.7A Expired - Lifetime EP1470735B1 (de) | 2002-01-28 | 2002-01-28 | Verfahren zur bestimmung einer akustischen umgebungssituation, anwendung des verfahrens und ein hörhilfegerät |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1470735B1 (de) |
| JP (1) | JP3987429B2 (de) |
| AU (2) | AU2472202A (de) |
| CA (1) | CA2439427C (de) |
| WO (1) | WO2002032208A2 (de) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPS247002A0 (en) * | 2002-05-21 | 2002-06-13 | Hearworks Pty Ltd | Programmable auditory prosthesis with trainable automatic adaptation to acoustic conditions |
| US7889879B2 (en) | 2002-05-21 | 2011-02-15 | Cochlear Limited | Programmable auditory prosthesis with trainable automatic adaptation to acoustic conditions |
| EP1339256B1 (de) * | 2003-03-03 | 2017-12-27 | Sonova AG | Verfahren zur Herstellung von akustischen Geräten und zur Verringerung von Windstörungen |
| US20040175008A1 (en) | 2003-03-07 | 2004-09-09 | Hans-Ueli Roeck | Method for producing control signals, method of controlling signal and a hearing device |
| US8027495B2 (en) | 2003-03-07 | 2011-09-27 | Phonak Ag | Binaural hearing device and method for controlling a hearing device system |
| DK1326478T3 (en) | 2003-03-07 | 2014-12-08 | Phonak Ag | Method for producing control signals and binaural hearing device system |
| US7286672B2 (en) | 2003-03-07 | 2007-10-23 | Phonak Ag | Binaural hearing device and method for controlling a hearing device system |
| JP4939935B2 (ja) * | 2003-06-24 | 2012-05-30 | ジーエヌ リザウンド エー/エス | 整合された音響処理を備える両耳用補聴器システム |
| US6912289B2 (en) | 2003-10-09 | 2005-06-28 | Unitron Hearing Ltd. | Hearing aid and processes for adaptively processing signals therein |
| DE10356093B3 (de) * | 2003-12-01 | 2005-06-02 | Siemens Audiologische Technik Gmbh | Hörervorrichtung mit richtungsabhängiger Signalverarbeitung und entsprechendes Verfahren |
| US20060182295A1 (en) | 2005-02-11 | 2006-08-17 | Phonak Ag | Dynamic hearing assistance system and method therefore |
| DK1819195T3 (da) | 2006-02-13 | 2009-11-30 | Phonak Comm Ag | Fremgangsmåde og system til tilvejebringelse af hörehjælp til en bruger |
| US7986790B2 (en) | 2006-03-14 | 2011-07-26 | Starkey Laboratories, Inc. | System for evaluating hearing assistance device settings using detected sound environment |
| US8068627B2 (en) | 2006-03-14 | 2011-11-29 | Starkey Laboratories, Inc. | System for automatic reception enhancement of hearing assistance devices |
| US8494193B2 (en) * | 2006-03-14 | 2013-07-23 | Starkey Laboratories, Inc. | Environment detection and adaptation in hearing assistance devices |
| CA2650600A1 (en) * | 2006-05-16 | 2007-11-22 | Phonak Ag | Hearing device and method for operating a hearing device |
| US7957548B2 (en) | 2006-05-16 | 2011-06-07 | Phonak Ag | Hearing device with transfer function adjusted according to predetermined acoustic environments |
| EP1858292B2 (de) | 2006-05-16 | 2022-02-23 | Sonova AG | Hörgerät sowie Verfahren zum Betrieb eines Hörgerätes |
| US8249284B2 (en) | 2006-05-16 | 2012-08-21 | Phonak Ag | Hearing system and method for deriving information on an acoustic scene |
| US7738666B2 (en) | 2006-06-01 | 2010-06-15 | Phonak Ag | Method for adjusting a system for providing hearing assistance to a user |
| US8605923B2 (en) | 2007-06-20 | 2013-12-10 | Cochlear Limited | Optimizing operational control of a hearing prosthesis |
| EP2192794B1 (de) | 2008-11-26 | 2017-10-04 | Oticon A/S | Verbesserungen für Hörgerätalgorithmen |
| DK2569955T3 (en) | 2010-05-12 | 2015-01-12 | Phonak Ag | Hearing system and method for operating the same |
| EP2596647B1 (de) | 2010-07-23 | 2016-01-06 | Sonova AG | Hörsystem und verfahren zum betreiben eines hörsystems |
| WO2010133703A2 (en) | 2010-09-15 | 2010-11-25 | Phonak Ag | Method and system for providing hearing assistance to a user |
| JP2012083746A (ja) * | 2010-09-17 | 2012-04-26 | Kinki Univ | 音処理装置 |
| EP2850848A1 (de) * | 2012-05-15 | 2015-03-25 | Phonak AG | Verfahren zum betrieb eines hörgeräts sowie ein hörgerät |
| US8958586B2 (en) | 2012-12-21 | 2015-02-17 | Starkey Laboratories, Inc. | Sound environment classification by coordinated sensing using hearing assistance devices |
| CN112954569B (zh) * | 2021-02-20 | 2022-10-25 | 深圳市智听科技有限公司 | 多核助听芯片、助听方法及助听器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE331417T1 (de) * | 2000-04-04 | 2006-07-15 | Gn Resound As | Eine hörprothese mit automatischer hörumgebungsklassifizierung |
| WO2001020965A2 (de) * | 2001-01-05 | 2001-03-29 | Phonak Ag | Verfahren zur bestimmung einer momentanen akustischen umgebungssituation, anwendung des verfharens und ein hörgerät |
-
2002
- 2002-01-28 AU AU2472202A patent/AU2472202A/xx active Pending
- 2002-01-28 WO PCT/CH2002/000049 patent/WO2002032208A2/de not_active Ceased
- 2002-01-28 JP JP2002535462A patent/JP3987429B2/ja not_active Expired - Fee Related
- 2002-01-28 CA CA2439427A patent/CA2439427C/en not_active Expired - Lifetime
- 2002-01-28 AU AU2002224722A patent/AU2002224722B2/en not_active Ceased
- 2002-01-28 EP EP02706499.7A patent/EP1470735B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0232208A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3987429B2 (ja) | 2007-10-10 |
| JP2005504325A (ja) | 2005-02-10 |
| WO2002032208A2 (de) | 2002-04-25 |
| AU2002224722B2 (en) | 2008-04-03 |
| AU2472202A (en) | 2002-04-29 |
| WO2002032208A3 (de) | 2002-12-05 |
| EP1470735B1 (de) | 2019-08-21 |
| CA2439427C (en) | 2011-03-29 |
| CA2439427A1 (en) | 2002-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1470735B1 (de) | Verfahren zur bestimmung einer akustischen umgebungssituation, anwendung des verfahrens und ein hörhilfegerät | |
| DE60120949T2 (de) | Eine hörprothese mit automatischer hörumgebungsklassifizierung | |
| DE69432943T2 (de) | Verfahren und Vorrichtung zur Sprachdetektion | |
| WO2001020965A2 (de) | Verfahren zur bestimmung einer momentanen akustischen umgebungssituation, anwendung des verfharens und ein hörgerät | |
| EP1247425B1 (de) | Verfahren zum betrieb eines hörgerätes und ein hörgerät | |
| DE2626793A1 (de) | Verfahren zur bewertung stimmhafter und stimmloser zustaende eines sprachsignals | |
| EP2405673B1 (de) | Verfahren zum Lokalisieren einer Audioquelle und mehrkanaliges Hörsystem | |
| EP3386215B1 (de) | Verfahren zum betrieb einer hörvorrichtung und hörvorrichtung | |
| EP1647972A2 (de) | Verbesserung der Verständlichkeit von Sprache enthaltenden Audiosignalen | |
| DE112016007138T5 (de) | Vorrichtung und verfahren zur überwachung eines tragezustandes eines ohrhörers | |
| DE102015221764A1 (de) | Verfahren zum Angleichen von Mikrofonempfindlichkeiten | |
| DE69511602T2 (de) | Signalquellencharakterisiersystem | |
| EP2200341B1 (de) | Verfahren zum Betrieb eines Hörhilfegerätes sowie Hörhilfegerät mit einer Quellentrennungseinrichtung | |
| DE19948907A1 (de) | Verfahren zur Signalverarbeitung in einer Hörhilfe sowie Hörhilfe | |
| WO2001047335A2 (de) | Verfahren zur elimination von störsignalanteilen in einem eingangssignal eines auditorischen systems, anwendung des verfahrens und ein hörgerät | |
| DE10114101A1 (de) | Verfahren zum Verarbeiten eines Eingangssignals in einer Signalverarbeitungseinheit eines Hörgerätes sowie Schaltung zur Durchführung des Verfahrens | |
| EP1279164A1 (de) | Verfahren zur berechnung einer sprachaktivitätsentscheidung (voice activity detector) | |
| EP2792165B1 (de) | Anpassung einer klassifikation eines audiosignals in einem hörgerät | |
| EP1303166B1 (de) | Verfahren zum Betrieb eines Hörgerätes und Anordung mit einem Hörgerät | |
| EP3403260B1 (de) | Verfahren und vorrichtung zur aufbereitung eines verlustbehaftet komprimierten audiosignals | |
| EP1348315B1 (de) | Verfahren zum betrieb eines hörgeräts und hörgerät dafür | |
| EP1130577B1 (de) | Verfahren zur Rekonstruktion tieffrequenter Sprachanteile aus mittelhohen Frequenzanteilen | |
| DE102006001730A1 (de) | Beschallungsanlage, Verfahren zur Verbesserung der Sprachqualität und/oder Verständlichkeit von Sprachdurchsagen sowie Computerprogramm | |
| EP0540535B1 (de) | Verfahren zur sprecheradaption eines automatischen spracherkennungssystems | |
| DE19813512A1 (de) | Hörgerät und Verfahren zur Störgeräuschunterdrückung mit Breitbandsignalanalyse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20030718 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17Q | First examination report despatched |
Effective date: 20121204 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SONOVA AG |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20190408 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE DK FR GB LI |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 50216344 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20190821 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20200129 Year of fee payment: 19 Ref country code: GB Payment date: 20200127 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 50216344 Country of ref document: DE |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20200127 Year of fee payment: 19 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20200603 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200131 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50216344 Country of ref document: DE |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20210128 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210131 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210803 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210128 |