JPH10507603A - 自動感度制御 - Google Patents
自動感度制御Info
- Publication number
- JPH10507603A JPH10507603A JP8513543A JP51354396A JPH10507603A JP H10507603 A JPH10507603 A JP H10507603A JP 8513543 A JP8513543 A JP 8513543A JP 51354396 A JP51354396 A JP 51354396A JP H10507603 A JPH10507603 A JP H10507603A
- Authority
- JP
- Japan
- Prior art keywords
- noise floor
- amplifier
- output
- gain
- determining
- 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
- H04R25/35—Electric hearing aids using translation techniques
- H04R25/356—Amplitude, e.g. amplitude shift or compression
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36036—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the outer, middle or inner ear
- A61N1/36038—Cochlear stimulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present
- H03G3/344—Muting responsive to the amount of noise (noise squelch)
-
- 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
- H04R25/00—Electric hearing aids
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
- H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Multimedia (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Radiology & Medical Imaging (AREA)
- Neurosurgery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Fire-Detection Mechanisms (AREA)
- Massaging Devices (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.聴覚用システムに対する自動利得制御システムであって、制御される増幅 器と該増幅器の出力に応答するフィードバック制御装置とをそなえ、該制御装置 は該増幅器出力の平均ノイズフロアを決定する手段と、該ノイズフロアを予め規 定されたレベルと比較する手段と、該ノイズフロアに応じて該増幅器の最大利得 を変化させるように制御信号を供給する手段とをそなえることを特徴とする自動 利得制御システム。 2.該平均ノイズフロアを決定する手段は、該出力信号の包絡線を決定するた めの包絡線検波器と、該出力信号のノイズフロアに対応する該出力包絡線の最小 値を求める最小値検出器とをそなえる、請求項1に記載のシステム。 3.該ノイズフロアを予め規定されたレベルと比較する手段は、コンパレータ をそなえる、請求項1又は2に記載のシステム。 4.該利得を変化させる手段は、積分器をそなえる、請求項3に記載のシステ ム。 5.該増幅器の最大利得は該ノイズフロアの減少に応じて比較的徐々に上方に 変化し、また該ノイズフロアの増加に応じて比較的急速に下方に変化するように されている、請求項1乃至4のいずれか一項に記載のシステム。 6.聴覚用システムに対する自動利得制御方法であって、該システムは制御さ れる増幅器と該増幅器の出力に応答するフィードバック制御装置とをそなえ、該 方法は、該出力の平均ノイズフロアレベルを決定するステップと、該平均ノイズ フロアレベルを予め規定されたレベルと比較するステップと、該ノイズフロアに 応じて該増幅器の最大利得を変化させるように該増幅器に制御信号を供給するス テップとをそなえている自動利得制御方法。 7.該平均ノイズフロアレベルを決定するステップは、該出力の包絡線を決定 することと、該包絡連の最小値を決定することとからなる、請求項6に記載の方 法。 8.該増幅器の最大利得は該ノイズフロアの減少に応じて比較的徐々に上方に 変化し、該ノイズフロアの増加に応じて比較的急速に下方に変化するようにされ ている、請求項6又は7に記載の方法。 9.請求項1乃至5のいずれか一項に記載のシステムをそなえた聴覚用人工補 綴具。 10.該人工補綴具は蝸牛用の補綴具である、請求項9に記載の人工補綴具。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPM9005A AUPM900594A0 (en) | 1994-10-24 | 1994-10-24 | Automatic sensitivity control |
| AU9005 | 1994-10-24 | ||
| PCT/AU1995/000703 WO1996013096A1 (en) | 1994-10-24 | 1995-10-24 | Automatic sensitivity control |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007129574A Division JP4382835B2 (ja) | 1994-10-24 | 2007-05-15 | 自動利得制御システム |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10507603A true JPH10507603A (ja) | 1998-07-21 |
| JP4307548B2 JP4307548B2 (ja) | 2009-08-05 |
Family
ID=3783523
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51354396A Expired - Fee Related JP4307548B2 (ja) | 1994-10-24 | 1995-10-24 | 自動感度制御 |
| JP2007129574A Expired - Fee Related JP4382835B2 (ja) | 1994-10-24 | 2007-05-15 | 自動利得制御システム |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007129574A Expired - Fee Related JP4382835B2 (ja) | 1994-10-24 | 2007-05-15 | 自動利得制御システム |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6151400A (ja) |
| EP (1) | EP0787383B1 (ja) |
| JP (2) | JP4307548B2 (ja) |
| AU (2) | AUPM900594A0 (ja) |
| CA (1) | CA2203395C (ja) |
| DE (1) | DE69527300T2 (ja) |
| WO (1) | WO1996013096A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005018280A1 (ja) * | 2003-08-19 | 2005-02-24 | Matsushita Electric Industrial Co., Ltd. | 補聴器 |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPO714197A0 (en) | 1997-06-02 | 1997-06-26 | University Of Melbourne, The | Multi-strategy array processor |
| JP3296311B2 (ja) * | 1998-12-25 | 2002-06-24 | ヤマハ株式会社 | 音響装置 |
| JP2001084506A (ja) * | 1999-09-17 | 2001-03-30 | Fujitsu Ltd | ノイズ除去回路、増幅回路、及び磁気記録装置 |
| US7558391B2 (en) * | 1999-11-29 | 2009-07-07 | Bizjak Karl L | Compander architecture and methods |
| JP4178712B2 (ja) * | 2000-04-04 | 2008-11-12 | 株式会社デンソー | 利得調整装置 |
| US7489790B2 (en) * | 2000-12-05 | 2009-02-10 | Ami Semiconductor, Inc. | Digital automatic gain control |
| US7130705B2 (en) * | 2001-01-08 | 2006-10-31 | International Business Machines Corporation | System and method for microphone gain adjust based on speaker orientation |
| AU2002245950B2 (en) * | 2001-04-11 | 2007-10-18 | Cochlear Limited | Variable sensitivity control for a cochlear implant |
| AUPR438601A0 (en) * | 2001-04-11 | 2001-05-17 | Cochlear Limited | Variable sensitivity control for a cochlear implant |
| WO2002082982A1 (en) * | 2001-04-18 | 2002-10-24 | Cochlear Limited | Method and apparatus for measurement of evoked neural response |
| KR20030059624A (ko) * | 2002-01-03 | 2003-07-10 | 삼성전자주식회사 | 휴대용컴퓨터의 볼륨제어시스템 및 볼륨제어방법 |
| AU2002951218A0 (en) * | 2002-09-04 | 2002-09-19 | Cochlear Limited | Method and apparatus for measurement of evoked neural response |
| US7406179B2 (en) * | 2003-04-01 | 2008-07-29 | Sound Design Technologies, Ltd. | System and method for detecting the insertion or removal of a hearing instrument from the ear canal |
| US7556597B2 (en) * | 2003-11-07 | 2009-07-07 | Otologics, Llc | Active vibration attenuation for implantable microphone |
| US7214179B2 (en) * | 2004-04-01 | 2007-05-08 | Otologics, Llc | Low acceleration sensitivity microphone |
| US7840020B1 (en) | 2004-04-01 | 2010-11-23 | Otologics, Llc | Low acceleration sensitivity microphone |
| US7463745B2 (en) * | 2004-04-09 | 2008-12-09 | Otologic, Llc | Phase based feedback oscillation prevention in hearing aids |
| CA2569724A1 (en) | 2004-06-15 | 2005-12-29 | Cochlear Americas | Automatic determination of the threshold of an evoked neural response |
| US7801617B2 (en) | 2005-10-31 | 2010-09-21 | Cochlear Limited | Automatic measurement of neural response concurrent with psychophysics measurement of stimulating device recipient |
| US8190268B2 (en) * | 2004-06-15 | 2012-05-29 | Cochlear Limited | Automatic measurement of an evoked neural response concurrent with an indication of a psychophysics reaction |
| CN1756444B (zh) * | 2004-09-30 | 2011-09-28 | 富迪科技股份有限公司 | 电声系统的自我检测校正方法 |
| US8096937B2 (en) * | 2005-01-11 | 2012-01-17 | Otologics, Llc | Adaptive cancellation system for implantable hearing instruments |
| EP2624597B1 (en) * | 2005-01-11 | 2014-09-10 | Cochlear Limited | Implantable hearing system |
| US8290181B2 (en) * | 2005-03-19 | 2012-10-16 | Microsoft Corporation | Automatic audio gain control for concurrent capture applications |
| US7522738B2 (en) * | 2005-11-30 | 2009-04-21 | Otologics, Llc | Dual feedback control system for implantable hearing instrument |
| CN101155438B (zh) * | 2006-09-26 | 2011-12-28 | 张秀丽 | 音频设备的频率响应自适应均衡方法 |
| US8249271B2 (en) | 2007-01-23 | 2012-08-21 | Karl M. Bizjak | Noise analysis and extraction systems and methods |
| US9352154B2 (en) * | 2007-03-22 | 2016-05-31 | Cochlear Limited | Input selection for an auditory prosthesis |
| WO2008113137A1 (en) * | 2007-03-22 | 2008-09-25 | Cochlear Limited | Bilateral input for auditory prostheses |
| WO2008116264A1 (en) * | 2007-03-26 | 2008-10-02 | Cochlear Limited | Noise reduction in auditory prostheses |
| US8472654B2 (en) | 2007-10-30 | 2013-06-25 | Cochlear Limited | Observer-based cancellation system for implantable hearing instruments |
| JP4850191B2 (ja) * | 2008-01-16 | 2012-01-11 | 富士通株式会社 | 自動音量制御装置及びそれを用いた音声通信装置 |
| US20090287277A1 (en) * | 2008-05-19 | 2009-11-19 | Otologics, Llc | Implantable neurostimulation electrode interface |
| EP2297977A4 (en) | 2008-05-30 | 2013-03-20 | Cochlear Ltd | METHOD AND DEVICE FOR ACOUSTIC PROCESSING |
| US20100069997A1 (en) * | 2008-09-16 | 2010-03-18 | Otologics, Llc | Neurostimulation apparatus |
| CN101447771B (zh) * | 2008-12-24 | 2014-11-19 | 北京中星微电子有限公司 | 一种增益自动控制的方法和系统 |
| EP2230664B1 (en) * | 2009-03-20 | 2011-06-29 | Harman Becker Automotive Systems GmbH | Method and apparatus for attenuating noise in an input signal |
| US9044588B2 (en) | 2009-04-16 | 2015-06-02 | Cochlear Limited | Reference electrode apparatus and method for neurostimulation implants |
| WO2010121240A2 (en) * | 2009-04-17 | 2010-10-21 | Otologics, Llc | Neurostimulation electrode array and method of manufacture |
| US8771166B2 (en) | 2009-05-29 | 2014-07-08 | Cochlear Limited | Implantable auditory stimulation system and method with offset implanted microphones |
| WO2011159349A1 (en) | 2010-06-14 | 2011-12-22 | Audiotoniq, Inc. | Hearing aid system |
| US9167339B2 (en) | 2010-07-07 | 2015-10-20 | Iii Holdings 4, Llc | Hearing damage limiting headphones |
| US8515110B2 (en) | 2010-09-30 | 2013-08-20 | Audiotoniq, Inc. | Hearing aid with automatic mode change capabilities |
| US8983606B2 (en) | 2010-10-29 | 2015-03-17 | Medtronic, Inc. | Enhanced sensing by an implantable medical device in the presence of an interfering signal from an external source |
| US8744578B2 (en) | 2010-10-29 | 2014-06-03 | Medtronic, Inc. | Staged sensing adjustments by an implantable medical device in the presence of interfering signals |
| US10687150B2 (en) | 2010-11-23 | 2020-06-16 | Audiotoniq, Inc. | Battery life monitor system and method |
| US8582786B2 (en) * | 2011-06-15 | 2013-11-12 | Alpine Electronics, Inc. | Automatic gain control of amplifier by dynamic suppressing and output control at multiple stages |
| CN103227615B (zh) | 2012-01-31 | 2015-09-09 | 富士通株式会社 | 自动增益控制装置和方法、功率调整装置和无线发射系统 |
| US10284968B2 (en) | 2015-05-21 | 2019-05-07 | Cochlear Limited | Advanced management of an implantable sound management system |
| US9699572B2 (en) | 2015-05-27 | 2017-07-04 | Starkey Laboratories, Inc. | Method and apparatus for suppressing transient sounds in hearing assistance devices |
| US9693153B2 (en) | 2015-05-27 | 2017-06-27 | Starkey Laboratories, Inc. | Method and apparatus for suppressing transient sounds in hearing assistance devices |
| US11071869B2 (en) | 2016-02-24 | 2021-07-27 | Cochlear Limited | Implantable device having removable portion |
| US10149072B2 (en) * | 2016-09-28 | 2018-12-04 | Cochlear Limited | Binaural cue preservation in a bilateral system |
| US10657950B2 (en) * | 2018-07-16 | 2020-05-19 | Apple Inc. | Headphone transparency, occlusion effect mitigation and wind noise detection |
| EP4035420B1 (en) | 2019-09-27 | 2025-07-09 | Widex A/S | A method of operating an ear level audio system and an ear level audio system |
| EP4301455A1 (en) | 2021-03-04 | 2024-01-10 | Envoy Medical Corporation | Cochlear implant system with improved input signal-to-noise ratio |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4052678A (en) * | 1975-08-14 | 1977-10-04 | Motorola, Inc. | Noise floor indicative circuit |
| US4185168A (en) * | 1976-05-04 | 1980-01-22 | Causey G Donald | Method and means for adaptively filtering near-stationary noise from an information bearing signal |
| US4405831A (en) * | 1980-12-22 | 1983-09-20 | The Regents Of The University Of California | Apparatus for selective noise suppression for hearing aids |
| US4630304A (en) * | 1985-07-01 | 1986-12-16 | Motorola, Inc. | Automatic background noise estimator for a noise suppression system |
| US4718099A (en) * | 1986-01-29 | 1988-01-05 | Telex Communications, Inc. | Automatic gain control for hearing aid |
| GB2192511B (en) * | 1986-07-11 | 1990-02-21 | Roger Frederick Laurence | Hearing aid |
| US4887299A (en) * | 1987-11-12 | 1989-12-12 | Nicolet Instrument Corporation | Adaptive, programmable signal processing hearing aid |
| GB2237463B (en) * | 1989-10-16 | 1994-01-05 | John Moffatt | Automatic volume control system |
| US5144675A (en) * | 1990-03-30 | 1992-09-01 | Etymotic Research, Inc. | Variable recovery time circuit for use with wide dynamic range automatic gain control for hearing aid |
| US5329243A (en) * | 1992-09-17 | 1994-07-12 | Motorola, Inc. | Noise adaptive automatic gain control circuit |
| US5701352A (en) * | 1994-07-14 | 1997-12-23 | Bellsouth Corporation | Tone suppression automatic gain control for a headset |
| US5550923A (en) * | 1994-09-02 | 1996-08-27 | Minnesota Mining And Manufacturing Company | Directional ear device with adaptive bandwidth and gain control |
-
1994
- 1994-10-24 AU AUPM9005A patent/AUPM900594A0/en not_active Abandoned
-
1995
- 1995-10-24 EP EP95935296A patent/EP0787383B1/en not_active Expired - Lifetime
- 1995-10-24 DE DE69527300T patent/DE69527300T2/de not_active Expired - Lifetime
- 1995-10-24 WO PCT/AU1995/000703 patent/WO1996013096A1/en not_active Ceased
- 1995-10-24 US US08/817,686 patent/US6151400A/en not_active Expired - Lifetime
- 1995-10-24 AU AU37376/95A patent/AU689659B2/en not_active Ceased
- 1995-10-24 CA CA002203395A patent/CA2203395C/en not_active Expired - Fee Related
- 1995-10-24 JP JP51354396A patent/JP4307548B2/ja not_active Expired - Fee Related
-
2007
- 2007-05-15 JP JP2007129574A patent/JP4382835B2/ja not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005018280A1 (ja) * | 2003-08-19 | 2005-02-24 | Matsushita Electric Industrial Co., Ltd. | 補聴器 |
| US7539320B2 (en) | 2003-08-19 | 2009-05-26 | Panasonic Corporation | Hearing aid with automatic excessive output sound control |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4307548B2 (ja) | 2009-08-05 |
| AU3737695A (en) | 1996-05-15 |
| EP0787383A1 (en) | 1997-08-06 |
| DE69527300D1 (de) | 2002-08-08 |
| US6151400A (en) | 2000-11-21 |
| JP4382835B2 (ja) | 2009-12-16 |
| JP2007274721A (ja) | 2007-10-18 |
| EP0787383B1 (en) | 2002-07-03 |
| DE69527300T2 (de) | 2003-01-30 |
| AU689659B2 (en) | 1998-04-02 |
| WO1996013096A1 (en) | 1996-05-02 |
| EP0787383A4 (ja) | 1997-08-06 |
| CA2203395C (en) | 2004-07-20 |
| AUPM900594A0 (en) | 1994-11-17 |
| CA2203395A1 (en) | 1996-05-02 |
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