WO2000021332A2 - Feedback management for hearing aid - Google Patents
Feedback management for hearing aid Download PDFInfo
- Publication number
- WO2000021332A2 WO2000021332A2 PCT/DK1999/000536 DK9900536W WO0021332A2 WO 2000021332 A2 WO2000021332 A2 WO 2000021332A2 DK 9900536 W DK9900536 W DK 9900536W WO 0021332 A2 WO0021332 A2 WO 0021332A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gain
- hearing aid
- filter
- volume control
- frequency range
- Prior art date
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
- H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
- H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
-
- 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
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
- H04R25/356—Amplitude, e.g. amplitude shift or compression
-
- 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
- H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
Definitions
- the present invention relates to a method of managing acoustic feedback in hearing aids.
- Feedback is a problem, which occurs in a hearing aid when the acoustic output signal from the hearing aid propagates beside an ear mould or through a vent and consequently enter the hearing aid microphone as an acoustic input.
- the hereby closed acoustic loop will especially for frequencies above 1-2 kHz often cause the hearing aid to howl, which disables the function of the hearing aid.
- Previously known methods comprise the use of a high frequency cut-off filter to reduce the gain for the feedback management.
- This method can have the form of an isolated filter to be individually adjusted, but suffer from a drawback in that when the volume control of the hearing aid is turned down and hereby reduces the gain of the feedback frequencies, the filter is still in action reducing the high frequency gain.
- Another known method comprises a combination of the volume control and a high frequency cut-off filter meaning that when the volume control is turned up and hereby increases the gain of the hearing aid, the filter goes gradually into action and reduces the high frequency gain. The drawbacks of this scheme being that until now this could not be individually adjusted and secondly that the steepness of this filter was a modest 6 dB/octave.
- the objective of the present invention is to provide a method for feedback management, which reduces the feedback problems without the previously mentioned drawbacks.
- the determining of the maximum gain before feedback occurs and the controlling the volume control is applied for several channels.
- a 1st or preferably higher order multi channel filter can be used for feedback management and adaptation purposes. This filter has shown to possess adequate properties for the purpose of the method according to the invention.
- the hearing aid comprises a housing containing a microphone, an amplifier in connection with the microphone, a receiver in connection with the amplifier, where the amplifier comprises a multi channel type of filter, a control system for monitoring the gain in at least one channel, and control means for controlling the volume control in the at least one channel.
- the determining of the maximum gain before feedback occurs and the controlling the volume control is applied for several channels.
- the multi channel filter is adapted for both feedback management and adaptation purposes.
- FIG. 1-2 are drawings showing the function of a method according to the invention:
- the multi channel filter has as an example been chosen to be a two channel type filter along with a suitable crossover frequency.
- volume control comprise in this example 15 steps, each step defining a 2 dB increase or decrease of gain. All frequencies are subjected to the same increase or decrease of gain depending on the setting of the volume control.
- VC volume control
- FIG. 2 a situation appears, where the maximum allowable gain in the high frequency channel before feedback occurs has been determined to volume control (VC) setting -12 dB. If the user exceeds this setting of the volume control, the control system takes over and for example keeps the gain in the high frequency channel constant and allows only an increase in gain for the low frequency channel.
- the number of channels, step size, the number of steps etc. may in this connection be chosen different from the above example.
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)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Networks Using Active Elements (AREA)
- Control Of Amplification And Gain Control (AREA)
- Stereophonic System (AREA)
Abstract
The invention relates to a method of managing acoustic feedback in a hearing aid, characterised by using a multi (two or more) channel type of filter hereby splitting the frequency range up in two or more separate parts; determining the maximum allowable gain in at least one frequency range before feedback occurs; monitoring the volume control in such a way, that if the maximum allowable gain before feedback occurs is reached, the gain is manipulated for the offending frequency range. The determination of maximum allowable gain and the monitoring of the volume control is applied for several channels. The invention further relates to hearing aid implementing the method according to the method according to the invention.
Description
TITLE
Feedback management for hearing aid
BACKGROUND OF THE INVENTION
The present invention relates to a method of managing acoustic feedback in hearing aids. Feedback is a problem, which occurs in a hearing aid when the acoustic output signal from the hearing aid propagates beside an ear mould or through a vent and consequently enter the hearing aid microphone as an acoustic input. The hereby closed acoustic loop will especially for frequencies above 1-2 kHz often cause the hearing aid to howl, which disables the function of the hearing aid.
During time several attempts have been made to avoid or to reduce the feedback problems of hearing aids. Previously known methods comprise the use of a high frequency cut-off filter to reduce the gain for the feedback management. This method can have the form of an isolated filter to be individually adjusted, but suffer from a drawback in that when the volume control of the hearing aid is turned down and hereby reduces the gain of the feedback frequencies, the filter is still in action reducing the high frequency gain. Another known method comprises a combination of the volume control and a high frequency cut-off filter meaning that when the volume control is turned up and hereby increases the gain of the hearing aid, the filter goes gradually into action and reduces the high frequency gain. The drawbacks of this scheme being that until now this could not be individually adjusted and secondly that the steepness of this filter was a modest 6 dB/octave.
The objective of the present invention is to provide a method for feedback management, which reduces the feedback problems without the previously mentioned drawbacks.
SUMMARY OF THE INVENTION
The objective of the invention is achieved by a method, which is characterised by:
• using a multi (two or more) channel type of filter hereby splitting the frequency range up in two or more separate parts
• determining the maximum allowable gain in at least one frequency range before feedback occurs
• monitoring the volume control in such a way, that if the maximum allowable gain before feedback occurs is reached or exceeded, the gain is manipulated for an offending frequency range.
By such a method the above mentioned drawbacks of the previously known methods are remedied and the feedback management may be adjusted individually for the actual user.
In a further embodiment the determining of the maximum gain before feedback occurs and the controlling the volume control is applied for several channels.
By using a multi channel type of filter it is possible by proper selection of the crossover frequencies to use the same type of filter for both feedback and adaption purposes. Using the same filter for both purposes reduces the size of the amplifier and to some extent also the cost of the amplifier.
A 1st or preferably higher order multi channel filter can be used for feedback management and adaptation purposes. This filter has shown to possess adequate properties for the purpose of the method according to the invention.
According to the invention the hearing aid comprises a housing containing a microphone, an amplifier in connection with the microphone, a receiver in
connection with the amplifier, where the amplifier comprises a multi channel type of filter, a control system for monitoring the gain in at least one channel, and control means for controlling the volume control in the at least one channel.
In a further embodiment the determining of the maximum gain before feedback occurs and the controlling the volume control is applied for several channels.
In a preferred embodiment the multi channel filter is adapted for both feedback management and adaptation purposes.
The invention will be explained more detailed in the following with reference to the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1-2 are drawings showing the function of a method according to the invention:
DESCRIPTION OF THE PREFERRED EMBODIMENT
In the FIGS. 1 to 2 the multi channel filter has as an example been chosen to be a two channel type filter along with a suitable crossover frequency.
From FIG. 1 a situation appears where the feedback management has been disabled and the volume control functions in a conventional manner. The volume control comprise in this example 15 steps, each step defining a 2 dB increase or decrease of gain. All frequencies are subjected to the same increase or decrease of gain depending on the setting of the volume control.
From FIG. 2 a situation appears, where the maximum allowable gain in the high frequency channel before feedback occurs has been determined to volume control (VC) setting -12 dB. If the user exceeds this setting of the volume control, the control system takes over and for example keeps the gain in the high frequency channel constant and allows only an increase in gain for the low frequency channel.
The number of channels, step size, the number of steps etc. may in this connection be chosen different from the above example.
Claims
1. A method of managing acoustic feedback in a hearing aid, characterised by
• using a multi (two or more) channel type of filter hereby splitting the frequency range up in two or more separate parts
• determining the maximum allowable gain in at least one frequency range before feedback occurs
• monitoring the volume control in such a way, that if the maximum allowable gain before feedback occurs is reached or exceeded, the gain is manipulated for an offending frequency range.
2. A method according to claim 1, characterized in that the determination of maximum allowable gain and the monotoring of the volume control is applied for several channels.
3. A method according to claim 1 or 2, characterised in that the multi channel filter is of 1. st order or higher.
4. A method according to claim 1, 2 or 3, characterised in that the multi channel filter is used for feedback management or for adaptation purposes or both.
5. A method according to any of the claims 1-4, characterized in that the gain in a manipulated frequency range is kept constant or only increased slightly.
6. A hearing aid comprising a housing containing a microphone, an amplifier in connection with the microphone, a receiver in connection with the amplifier, characterized in that the amplifier comprises a multi channel type of filter, a control system for monitoring the gain in at least one channel, and control means for controlling the volume control in the at least one channel.
7. A hearing aid according to claim 6, characterized in that the determining of the maximum gain before feedback occurs and the controlling the volume control is applied for several channels.
8. A hearing aid according to claim 6 or 7, characterized in that the multi channel filter is of 1. st order or higher order.
9. A hearing aid according to claim 6,7 or 8, characterized in that the multi channel filter is adapted for both feedback management and adaptation purposes.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK99970256.6T DK1120008T3 (en) | 1998-10-07 | 1999-10-07 | Feedback management for a hearing aid |
| AT99970256T ATE518383T1 (en) | 1998-10-07 | 1999-10-07 | FEEDBACK TREATMENT FOR A HEARING AID |
| AU59694/99A AU5969499A (en) | 1998-10-07 | 1999-10-07 | Feedback management for hearing aid |
| EP99970256A EP1120008B1 (en) | 1998-10-07 | 1999-10-07 | Feedback management for hearing aid |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA199801274 | 1998-10-07 | ||
| DKPA199801274 | 1998-10-07 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09807000 A-371-Of-International | 2001-05-21 | ||
| US10/760,385 Continuation US20040151332A1 (en) | 1998-10-07 | 2004-01-21 | Feedback management for hearing aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000021332A2 true WO2000021332A2 (en) | 2000-04-13 |
| WO2000021332A3 WO2000021332A3 (en) | 2000-07-27 |
Family
ID=8103013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DK1999/000536 WO2000021332A2 (en) | 1998-10-07 | 1999-10-07 | Feedback management for hearing aid |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1120008B1 (en) |
| AT (1) | ATE518383T1 (en) |
| AU (1) | AU5969499A (en) |
| DK (1) | DK1120008T3 (en) |
| WO (1) | WO2000021332A2 (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6718301B1 (en) | 1998-11-11 | 2004-04-06 | Starkey Laboratories, Inc. | System for measuring speech content in sound |
| US6829363B2 (en) | 2002-05-16 | 2004-12-07 | Starkey Laboratories, Inc. | Hearing aid with time-varying performance |
| US7010135B2 (en) | 2002-10-02 | 2006-03-07 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
| US7010136B1 (en) | 1999-02-17 | 2006-03-07 | Micro Ear Technology, Inc. | Resonant response matching circuit for hearing aid |
| US7139403B2 (en) | 2000-12-05 | 2006-11-21 | Ami Semiconductor, Inc. | Hearing aid with digital compression recapture |
| US7162044B2 (en) | 1999-09-10 | 2007-01-09 | Starkey Laboratories, Inc. | Audio signal processing |
| EP1909534A2 (en) * | 2006-10-02 | 2008-04-09 | Siemens Audiologische Technik GmbH | Hearing device with asymmetric audio balance and corresponding adjusting method |
| US7369669B2 (en) | 2002-05-15 | 2008-05-06 | Micro Ear Technology, Inc. | Diotic presentation of second-order gradient directional hearing aid signals |
| EP1278396A3 (en) * | 2001-07-16 | 2008-12-10 | Panasonic Corporation | Howling detecting and suppressing apparatus, method and computer program product |
| US7536022B2 (en) | 2002-10-02 | 2009-05-19 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
| US7650004B2 (en) | 2001-11-15 | 2010-01-19 | Starkey Laboratories, Inc. | Hearing aids and methods and apparatus for audio fitting thereof |
| US7756276B2 (en) | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
| US7778426B2 (en) | 2003-08-20 | 2010-08-17 | Phonak Ag | Feedback suppression in sound signal processing using frequency translation |
| US8351626B2 (en) | 2004-04-01 | 2013-01-08 | Phonak Ag | Audio amplification apparatus |
| US8359283B2 (en) | 2009-08-31 | 2013-01-22 | Starkey Laboratories, Inc. | Genetic algorithms with robust rank estimation for hearing assistance devices |
| US8965016B1 (en) | 2013-08-02 | 2015-02-24 | Starkey Laboratories, Inc. | Automatic hearing aid adaptation over time via mobile application |
| US8971559B2 (en) | 2002-09-16 | 2015-03-03 | Starkey Laboratories, Inc. | Switching structures for hearing aid |
| US9036823B2 (en) | 2006-07-10 | 2015-05-19 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US9204227B2 (en) | 2009-12-30 | 2015-12-01 | Starkey Laboratories, Inc. | Noise reduction system for hearing assistance devices |
| US9215534B2 (en) | 2002-09-16 | 2015-12-15 | Starkey Laboratories, Inc. | Switching stuctures for hearing aid |
| US9282416B2 (en) | 2007-01-03 | 2016-03-08 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US9344817B2 (en) | 2000-01-20 | 2016-05-17 | Starkey Laboratories, Inc. | Hearing aid systems |
| US9774961B2 (en) | 2005-06-05 | 2017-09-26 | Starkey Laboratories, Inc. | Hearing assistance device ear-to-ear communication using an intermediate device |
| US10003379B2 (en) | 2014-05-06 | 2018-06-19 | Starkey Laboratories, Inc. | Wireless communication with probing bandwidth |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6449662B1 (en) | 1997-01-13 | 2002-09-10 | Micro Ear Technology, Inc. | System for programming hearing aids |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016280A (en) * | 1988-03-23 | 1991-05-14 | Central Institute For The Deaf | Electronic filters, hearing aids and methods |
| US5111419A (en) * | 1988-03-23 | 1992-05-05 | Central Institute For The Deaf | Electronic filters, signal conversion apparatus, hearing aids and methods |
| DK169958B1 (en) * | 1992-10-20 | 1995-04-10 | Gn Danavox As | Hearing aid with compensation for acoustic feedback |
| EP0824845B1 (en) * | 1995-05-02 | 1998-09-30 | TOPHOLM & WESTERMANN APS | Process for controlling a programmable or program-controlled hearing aid for its in-situ fitting adjustment |
-
1999
- 1999-10-07 DK DK99970256.6T patent/DK1120008T3/en active
- 1999-10-07 AT AT99970256T patent/ATE518383T1/en not_active IP Right Cessation
- 1999-10-07 AU AU59694/99A patent/AU5969499A/en not_active Abandoned
- 1999-10-07 WO PCT/DK1999/000536 patent/WO2000021332A2/en active Application Filing
- 1999-10-07 EP EP99970256A patent/EP1120008B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| None |
Cited By (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6718301B1 (en) | 1998-11-11 | 2004-04-06 | Starkey Laboratories, Inc. | System for measuring speech content in sound |
| US7010136B1 (en) | 1999-02-17 | 2006-03-07 | Micro Ear Technology, Inc. | Resonant response matching circuit for hearing aid |
| US7162044B2 (en) | 1999-09-10 | 2007-01-09 | Starkey Laboratories, Inc. | Audio signal processing |
| US9344817B2 (en) | 2000-01-20 | 2016-05-17 | Starkey Laboratories, Inc. | Hearing aid systems |
| US9357317B2 (en) | 2000-01-20 | 2016-05-31 | Starkey Laboratories, Inc. | Hearing aid systems |
| US7489790B2 (en) | 2000-12-05 | 2009-02-10 | Ami Semiconductor, Inc. | Digital automatic gain control |
| US8009842B2 (en) | 2000-12-05 | 2011-08-30 | Semiconductor Components Industries, Llc | Hearing aid with digital compression recapture |
| US9559653B2 (en) | 2000-12-05 | 2017-01-31 | K/S Himpp | Digital automatic gain control |
| US7139403B2 (en) | 2000-12-05 | 2006-11-21 | Ami Semiconductor, Inc. | Hearing aid with digital compression recapture |
| EP1278396A3 (en) * | 2001-07-16 | 2008-12-10 | Panasonic Corporation | Howling detecting and suppressing apparatus, method and computer program product |
| US7650004B2 (en) | 2001-11-15 | 2010-01-19 | Starkey Laboratories, Inc. | Hearing aids and methods and apparatus for audio fitting thereof |
| US9049529B2 (en) | 2001-11-15 | 2015-06-02 | Starkey Laboratories, Inc. | Hearing aids and methods and apparatus for audio fitting thereof |
| US7369669B2 (en) | 2002-05-15 | 2008-05-06 | Micro Ear Technology, Inc. | Diotic presentation of second-order gradient directional hearing aid signals |
| US7822217B2 (en) | 2002-05-15 | 2010-10-26 | Micro Ear Technology, Inc. | Hearing assistance systems for providing second-order gradient directional signals |
| US7206424B2 (en) | 2002-05-16 | 2007-04-17 | Starkey Laboratories, Inc. | Hearing aid with time-varying performance |
| US6829363B2 (en) | 2002-05-16 | 2004-12-07 | Starkey Laboratories, Inc. | Hearing aid with time-varying performance |
| US8971559B2 (en) | 2002-09-16 | 2015-03-03 | Starkey Laboratories, Inc. | Switching structures for hearing aid |
| US9215534B2 (en) | 2002-09-16 | 2015-12-15 | Starkey Laboratories, Inc. | Switching stuctures for hearing aid |
| US7536022B2 (en) | 2002-10-02 | 2009-05-19 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
| US7010135B2 (en) | 2002-10-02 | 2006-03-07 | Phonak Ag | Method to determine a feedback threshold in a hearing device |
| US7778426B2 (en) | 2003-08-20 | 2010-08-17 | Phonak Ag | Feedback suppression in sound signal processing using frequency translation |
| US7756276B2 (en) | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
| US8351626B2 (en) | 2004-04-01 | 2013-01-08 | Phonak Ag | Audio amplification apparatus |
| US9774961B2 (en) | 2005-06-05 | 2017-09-26 | Starkey Laboratories, Inc. | Hearing assistance device ear-to-ear communication using an intermediate device |
| US10728678B2 (en) | 2006-07-10 | 2020-07-28 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US10051385B2 (en) | 2006-07-10 | 2018-08-14 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US9036823B2 (en) | 2006-07-10 | 2015-05-19 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US9510111B2 (en) | 2006-07-10 | 2016-11-29 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US11064302B2 (en) | 2006-07-10 | 2021-07-13 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US11678128B2 (en) | 2006-07-10 | 2023-06-13 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| US10469960B2 (en) | 2006-07-10 | 2019-11-05 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
| EP1909534A3 (en) * | 2006-10-02 | 2010-12-01 | Siemens Audiologische Technik GmbH | Hearing device with asymmetric audio balance and corresponding adjusting method |
| US8170235B2 (en) | 2006-10-02 | 2012-05-01 | Siemens Audiologische Technik Gmbh | Hearing apparatus with unsymmetrical tone balance unit and corresponding control method |
| EP1909534A2 (en) * | 2006-10-02 | 2008-04-09 | Siemens Audiologische Technik GmbH | Hearing device with asymmetric audio balance and corresponding adjusting method |
| US10511918B2 (en) | 2007-01-03 | 2019-12-17 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US9854369B2 (en) | 2007-01-03 | 2017-12-26 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US9282416B2 (en) | 2007-01-03 | 2016-03-08 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US11218815B2 (en) | 2007-01-03 | 2022-01-04 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US11765526B2 (en) | 2007-01-03 | 2023-09-19 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US12212930B2 (en) | 2007-01-03 | 2025-01-28 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
| US8359283B2 (en) | 2009-08-31 | 2013-01-22 | Starkey Laboratories, Inc. | Genetic algorithms with robust rank estimation for hearing assistance devices |
| US9204227B2 (en) | 2009-12-30 | 2015-12-01 | Starkey Laboratories, Inc. | Noise reduction system for hearing assistance devices |
| US8965016B1 (en) | 2013-08-02 | 2015-02-24 | Starkey Laboratories, Inc. | Automatic hearing aid adaptation over time via mobile application |
| US10003379B2 (en) | 2014-05-06 | 2018-06-19 | Starkey Laboratories, Inc. | Wireless communication with probing bandwidth |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1120008B1 (en) | 2011-07-27 |
| ATE518383T1 (en) | 2011-08-15 |
| EP1120008A2 (en) | 2001-08-01 |
| WO2000021332A3 (en) | 2000-07-27 |
| AU5969499A (en) | 2000-04-26 |
| DK1120008T3 (en) | 2011-10-24 |
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