EP1238569A2 - Verfahren zur erzeugung einer vorgegebenen oder vorgebbaren empfangscharakteristik an einem digitalen hörgerät und digitales hörgerät - Google Patents
Verfahren zur erzeugung einer vorgegebenen oder vorgebbaren empfangscharakteristik an einem digitalen hörgerät und digitales hörgerätInfo
- Publication number
- EP1238569A2 EP1238569A2 EP99957244A EP99957244A EP1238569A2 EP 1238569 A2 EP1238569 A2 EP 1238569A2 EP 99957244 A EP99957244 A EP 99957244A EP 99957244 A EP99957244 A EP 99957244A EP 1238569 A2 EP1238569 A2 EP 1238569A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- digital
- analog
- hearing aid
- microphones
- der
- 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; 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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
Definitions
- the present invention relates to a method for generating a predetermined or predeterminable reception characteristic on a digital hearing aid with at least two microphones, in which the output signals of the microphones are subjected to an analog / digital conversion, the digitally converted signals are additively superimposed after at least one the digital signals have been subjected to a given or adjustable time delay, the analog / digital conversion of the at least one time-delayed signal also being carried out by means of oversampling.
- the present invention relates to a digital hearing aid with at least two microphones, the microphones depending on the analog / digital converters connected downstream, the analog / digital converter outputs, at least one of them via a delay element, being operatively connected to the inputs of an additive superimposition unit, and at least the via the delay element acting on the superimposition unit analog / digital converter is designed as an analog / digital converter with oversampling.
- delay and add method for generating predefined or predefinable reception characteristics, in particular also on digital hearing aids with at least two microphones.
- This is achieved according to the invention in the method of the type mentioned at the outset in that the digital signal converted by means of oversampling, after downsampling, is both time-delayed and matched, or in that the delay element on the hearing device of the type mentioned at the outset as a down-sampled filter element is formed, which is also used for level adjustment of the signals supplied to the superimposition unit.
- Fig. 2 on the hearing aid according to the invention according to Fig. 1 is a block diagram of the level adjustment unit and the resulting level gradation.
- two microphones 3a and 3b are provided on the hearing aid 1 according to the invention, which are physically arranged at a predetermined distance from one another.
- the output signals of the microphones 3a and 3b are each converted into digital signals on the analog / digital converter 5a or 5b.
- At least one the aforementioned analog / digital converter is oversampled, as shown, for example, on converter 5a.
- the output signal of the converter 5a which is designed, for example, as a sigma / delta converter, is downsampled on a filter unit 7, for example as a one-bit output data stream, as a result of which data words of, for example, 16 bits are produced in series.
- the time delay ⁇ is set or changed in accordance with the "delay and add" directional method, which can be carried out minimally in increments of data words with a correspondingly lower keying frequency.
- the level of the digital signal appearing on the output side is adjusted, which is possible in a very simple manner by shifting, adding / subtracting the data words formed on the filter unit 7.
- the digital signals on the output side of the second analog / digital converter 5b provided, possibly passed through a further filter unit 9, are present on the output side in the same data format as the digital output signals of the filter unit 7.
- the output signals of the Units 8 and 9 are superimposed on a digital superimposition unit 11 and, if necessary, fed via a filter 12 to the digital processing unit 13 of the hearing aid, which acts on the output side on the electromechanical output transducer of the hearing aid.
- FIG. 2 shows the block diagram of the level adjustment unit on the unit 8 according to FIG. 1 and, in table form, the level gradation scale that can be achieved with it.
- both time delay ⁇ and level adjustment P can be implemented by means of delay elements, for example shift registers.
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)
- Analogue/Digital Conversion (AREA)
- Circuit For Audible Band Transducer (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH1999/000604 WO2000022902A2 (de) | 1999-12-15 | 1999-12-15 | Verfahren zur erzeugung einer vorgegebenen oder vorgebbaren empfangscharakteristik an einem digitalen hörgerät und digitales hörgerät |
US09/461,951 US6697494B1 (en) | 1999-12-15 | 1999-12-15 | Method to generate a predetermined or predeterminable receiving characteristic of a digital hearing aid, and a digital hearing aid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1238569A2 true EP1238569A2 (de) | 2002-09-11 |
EP1238569B1 EP1238569B1 (de) | 2003-08-06 |
Family
ID=32394670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99957244A Revoked EP1238569B1 (de) | 1999-12-15 | 1999-12-15 | Verfahren zur erzeugung einer vorgegebenen oder vorgebbaren empfangscharakteristik an einem digitalen hörgerät und digitales hörgerät |
Country Status (7)
Country | Link |
---|---|
US (1) | US6697494B1 (de) |
EP (1) | EP1238569B1 (de) |
AU (1) | AU1502500A (de) |
CA (1) | CA2390832A1 (de) |
DE (1) | DE59906547D1 (de) |
DK (1) | DK1238569T3 (de) |
WO (1) | WO2000022902A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7206421B1 (en) | 2000-07-14 | 2007-04-17 | Gn Resound North America Corporation | Hearing system beamformer |
CN105959457B (zh) * | 2016-06-28 | 2017-11-24 | 广东欧珀移动通信有限公司 | 基于双麦克风的录音方法及终端 |
CN113658579B (zh) * | 2021-09-18 | 2024-01-30 | 重庆紫光华山智安科技有限公司 | 音频信号处理方法、装置、电子设备及可读存储介质 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2546630B1 (fr) * | 1983-05-26 | 1986-01-17 | Thomson Csf | Recepteur pour systeme radar doppler a impulsions |
JP2833212B2 (ja) * | 1990-11-29 | 1998-12-09 | 松下電器産業株式会社 | 帯域分割符号化のビット割当方法 |
US5400409A (en) * | 1992-12-23 | 1995-03-21 | Daimler-Benz Ag | Noise-reduction method for noise-affected voice channels |
US5825898A (en) * | 1996-06-27 | 1998-10-20 | Lamar Signal Processing Ltd. | System and method for adaptive interference cancelling |
US6041127A (en) * | 1997-04-03 | 2000-03-21 | Lucent Technologies Inc. | Steerable and variable first-order differential microphone array |
US6178248B1 (en) * | 1997-04-14 | 2001-01-23 | Andrea Electronics Corporation | Dual-processing interference cancelling system and method |
DE19814180C1 (de) * | 1998-03-30 | 1999-10-07 | Siemens Audiologische Technik | Digitales Hörgerät sowie Verfahren zur Erzeugung einer variablen Richtmikrofoncharakteristik |
-
1999
- 1999-12-15 US US09/461,951 patent/US6697494B1/en not_active Expired - Lifetime
- 1999-12-15 CA CA002390832A patent/CA2390832A1/en not_active Abandoned
- 1999-12-15 WO PCT/CH1999/000604 patent/WO2000022902A2/de not_active Application Discontinuation
- 1999-12-15 DE DE59906547T patent/DE59906547D1/de not_active Revoked
- 1999-12-15 DK DK99957244T patent/DK1238569T3/da active
- 1999-12-15 EP EP99957244A patent/EP1238569B1/de not_active Revoked
- 1999-12-15 AU AU15025/00A patent/AU1502500A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0022902A2 * |
Also Published As
Publication number | Publication date |
---|---|
CA2390832A1 (en) | 2000-04-27 |
DE59906547D1 (de) | 2003-09-11 |
WO2000022902A2 (de) | 2000-04-27 |
US6697494B1 (en) | 2004-02-24 |
AU1502500A (en) | 2000-05-08 |
EP1238569B1 (de) | 2003-08-06 |
WO2000022902A3 (de) | 2001-02-22 |
DK1238569T3 (da) | 2003-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1620698B1 (de) | Betriebsverfahren für einen corioliskreisel und dafür geeignete auswerte-/regelelektronik und pulsmodulator | |
EP0793897A1 (de) | Hörhilfsgerät | |
EP1840681B1 (de) | Verfahren und Vorrichtung zur Regelung von Schwingungsisolationssystemen | |
DE102005028726B4 (de) | Verfahren und Vorrichtung zur Analog-Digital-Wandlung | |
DE10320674B4 (de) | Pulsmodulator und Verfahren zur Pulsmodulation | |
EP1238569A2 (de) | Verfahren zur erzeugung einer vorgegebenen oder vorgebbaren empfangscharakteristik an einem digitalen hörgerät und digitales hörgerät | |
WO2004068703A1 (de) | Vorrichtung und verfahren zur digitalen pulsweiten-modulation | |
EP0890291B1 (de) | Verfahren und anordnung zum umwandeln eines akustischen signals in ein elektrisches signal | |
DE102008024897B3 (de) | Sigma-Delta-Wandler und Verfahren zur Signalverarbeitung | |
DE3044582A1 (de) | Digitaler verstaerker, insbesondere zur verwendung in einer digitalen fernsprech-teilnehmerschaltung | |
EP3443663B1 (de) | Modulator für einen digitalen verstärker | |
WO1987005170A1 (en) | Method and device for converting the frequency of frequency modulated signals | |
EP1048112B1 (de) | Sigma-delta-d/a-wandler | |
DE69403549T2 (de) | Signalverarbeitungsanordnung mit mehreren verschiedenen Filtern, insbesondere für audiofrequente Codierung von Stimmensignalen | |
DE102004006957A1 (de) | Verfahren und Vorrichtung zum Verstärken eines Empfangssignals | |
DE19725171A1 (de) | Schaltungsanordnung zur Wandlung eines analogen Signals in ein digitales Signal | |
DE10327620A1 (de) | Vorrichtung und Verfahren zur digitalen Pulsweiten-Modulation | |
DE10156744B4 (de) | Linearer PCM/PWM-Modulator | |
DE19526332A1 (de) | Einrichtung und Verfahren zum Übertragen von digitalisierten Signalen | |
DE10354113B4 (de) | Übertragungsvorrichtung mit variabler Impedanzanpassung | |
WO2002080370A2 (de) | Überabtasten in analog-digital- und digital-analog-umsetzern | |
WO1993016552A1 (de) | Mehrfachabtastungsverfahren | |
EP0022558A1 (de) | Schaltungsanordnung zur Amplitudenregelung bei einer automatischen adaptiven, zeitlichen Entzerrung der Nachschwinger eines mindestens dreipegeligen Basisbandsignals | |
EP1190485A1 (de) | Programmierbares digitales bandpass-filter für eine kodec-schaltung | |
WO2003030516A1 (de) | Verfahren zum übertragen von gebührenbestimmungssignalen über einen datenübertragungspfad und vorrichtung zur spannungspegelgenerierung |
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: 20020226 |
|
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 |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): CH DE DK LI |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: TROESCH SCHEIDEGGER WERNER AG |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 59906547 Country of ref document: DE Date of ref document: 20030911 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
26 | Opposition filed |
Opponent name: SIEMENS AG Effective date: 20040505 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20051209 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20051215 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20060227 Year of fee payment: 7 |
|
RDAF | Communication despatched that patent is revoked |
Free format text: ORIGINAL CODE: EPIDOSNREV1 |
|
RDAG | Patent revoked |
Free format text: ORIGINAL CODE: 0009271 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT REVOKED |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
27W | Patent revoked |
Effective date: 20060828 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |