DE3865859D1 - Schaltungsanordnung zum erkennen von schwingungen. - Google Patents
Schaltungsanordnung zum erkennen von schwingungen.Info
- Publication number
- DE3865859D1 DE3865859D1 DE8888101634T DE3865859T DE3865859D1 DE 3865859 D1 DE3865859 D1 DE 3865859D1 DE 8888101634 T DE8888101634 T DE 8888101634T DE 3865859 T DE3865859 T DE 3865859T DE 3865859 D1 DE3865859 D1 DE 3865859D1
- Authority
- DE
- Germany
- Prior art keywords
- threshold value
- circuit arrangement
- detecting vibrations
- comparison stage
- spacing
- 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.)
- Expired - Fee Related
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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
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)
- Glass Compositions (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Analogue/Digital Conversion (AREA)
- Circuit For Audible Band Transducer (AREA)
- Filters And Equalizers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Amplifiers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8888101634T DE3865859D1 (de) | 1987-02-17 | 1988-02-04 | Schaltungsanordnung zum erkennen von schwingungen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3704998 | 1987-02-17 | ||
DE8888101634T DE3865859D1 (de) | 1987-02-17 | 1988-02-04 | Schaltungsanordnung zum erkennen von schwingungen. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3865859D1 true DE3865859D1 (de) | 1991-12-05 |
Family
ID=6321172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888101634T Expired - Fee Related DE3865859D1 (de) | 1987-02-17 | 1988-02-04 | Schaltungsanordnung zum erkennen von schwingungen. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4845757A (de) |
EP (1) | EP0280909B1 (de) |
AT (1) | ATE69132T1 (de) |
DE (1) | DE3865859D1 (de) |
DK (1) | DK169012B1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225836A (en) * | 1988-03-23 | 1993-07-06 | Central Institute For The Deaf | Electronic filters, repeated signal charge conversion apparatus, hearing aids and methods |
US5091952A (en) * | 1988-11-10 | 1992-02-25 | Wisconsin Alumni Research Foundation | Feedback suppression in digital signal processing hearing aids |
US5259033A (en) * | 1989-08-30 | 1993-11-02 | Gn Danavox As | Hearing aid having compensation for acoustic feedback |
WO1992005538A1 (en) * | 1990-09-14 | 1992-04-02 | Chris Todter | Noise cancelling systems |
US5134658A (en) * | 1990-09-27 | 1992-07-28 | Advanced Micro Devices, Inc. | Apparatus for discriminating information signals from noise signals in a communication signal |
DK0567535T3 (da) * | 1991-01-17 | 2003-12-08 | Roger A Adelman | Forbedret høreapparat |
US5621802A (en) * | 1993-04-27 | 1997-04-15 | Regents Of The University Of Minnesota | Apparatus for eliminating acoustic oscillation in a hearing aid by using phase equalization |
US5412734A (en) * | 1993-09-13 | 1995-05-02 | Thomasson; Samuel L. | Apparatus and method for reducing acoustic feedback |
US5533120A (en) * | 1994-02-01 | 1996-07-02 | Tandy Corporation | Acoustic feedback cancellation for equalized amplifying systems |
JP2773678B2 (ja) * | 1994-09-09 | 1998-07-09 | ヤマハ株式会社 | ハウリング防止装置 |
US5812679A (en) * | 1994-11-30 | 1998-09-22 | Killion; Mead | Electronic damper circuit for a hearing aid and a method of using the same |
US6466678B1 (en) | 1994-11-30 | 2002-10-15 | Etymotic Research, Inc. | Hearing aid having digital damping |
GB2311186A (en) * | 1996-03-13 | 1997-09-17 | Jan Albert Gadd | Hearing aid feedback detecting and warning device |
US6252967B1 (en) * | 1999-01-21 | 2001-06-26 | Acoustic Technologies, Inc. | Reducing acoustic feedback with digital modulation |
US6480610B1 (en) * | 1999-09-21 | 2002-11-12 | Sonic Innovations, Inc. | Subband acoustic feedback cancellation in hearing aids |
DE10244184B3 (de) * | 2002-09-23 | 2004-04-15 | Siemens Audiologische Technik Gmbh | Feedbackkompensation für Hörgeräte mit Systemabstandsschätzung |
AU2004201374B2 (en) * | 2004-04-01 | 2010-12-23 | Phonak Ag | Audio amplification apparatus |
US7756276B2 (en) * | 2003-08-20 | 2010-07-13 | Phonak Ag | Audio amplification apparatus |
AU2003236382B2 (en) * | 2003-08-20 | 2011-02-24 | Phonak Ag | Feedback suppression in sound signal processing using frequency transposition |
US20070106530A1 (en) * | 2004-05-26 | 2007-05-10 | Blamey Peter J | Oscillation suppression |
DE102007007120A1 (de) | 2007-02-13 | 2008-08-21 | Siemens Audiologische Technik Gmbh | Verfahren zum Erzeugen von akustischen Signalen eines Hörgeräts |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4054462A (en) * | 1976-03-01 | 1977-10-18 | The Dow Chemical Company | Method of cementing |
US4091236A (en) * | 1976-09-07 | 1978-05-23 | The University Of Akron | Automatically tunable notch filter and method for suppression of acoustical feedback |
NL7612358A (nl) * | 1976-11-08 | 1978-05-10 | Philips Nv | Versterkerinrichting voor akoestische signalen voorzien van middelen voor het onderdrukken van ongewenste stoorsignalen. |
US4079199A (en) * | 1977-05-25 | 1978-03-14 | Patronis Jr Eugene T | Acoustic feedback detector and automatic gain control |
US4232192A (en) * | 1978-05-01 | 1980-11-04 | Starkey Labs, Inc. | Moving-average notch filter |
-
1988
- 1988-02-04 AT AT88101634T patent/ATE69132T1/de not_active IP Right Cessation
- 1988-02-04 US US07/152,390 patent/US4845757A/en not_active Expired - Fee Related
- 1988-02-04 EP EP88101634A patent/EP0280909B1/de not_active Expired - Lifetime
- 1988-02-04 DE DE8888101634T patent/DE3865859D1/de not_active Expired - Fee Related
- 1988-02-16 DK DK077988A patent/DK169012B1/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK77988D0 (da) | 1988-02-16 |
DK169012B1 (da) | 1994-07-25 |
ATE69132T1 (de) | 1991-11-15 |
US4845757A (en) | 1989-07-04 |
EP0280909A1 (de) | 1988-09-07 |
DK77988A (da) | 1988-08-18 |
EP0280909B1 (de) | 1991-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |