DE60043425D1 - Lautsprecherschutzsystem mit vom audiofrequenzband abhängiger leistungseinstellung - Google Patents

Lautsprecherschutzsystem mit vom audiofrequenzband abhängiger leistungseinstellung

Info

Publication number
DE60043425D1
DE60043425D1 DE60043425T DE60043425T DE60043425D1 DE 60043425 D1 DE60043425 D1 DE 60043425D1 DE 60043425 T DE60043425 T DE 60043425T DE 60043425 T DE60043425 T DE 60043425T DE 60043425 D1 DE60043425 D1 DE 60043425D1
Authority
DE
Germany
Prior art keywords
frequency band
audio frequency
protection system
power adjustment
dependent power
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 - Lifetime
Application number
DE60043425T
Other languages
English (en)
Inventor
Ronaldus M Aarts
Joris A Nieuwendijk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE60043425D1 publication Critical patent/DE60043425D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE60043425T 1999-07-02 2000-06-27 Lautsprecherschutzsystem mit vom audiofrequenzband abhängiger leistungseinstellung Expired - Lifetime DE60043425D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99202162 1999-07-02
PCT/EP2000/005962 WO2001003466A2 (en) 1999-07-02 2000-06-27 Loudspeaker protection system having frequency band selective audio power control

Publications (1)

Publication Number Publication Date
DE60043425D1 true DE60043425D1 (de) 2010-01-14

Family

ID=8240404

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60043425T Expired - Lifetime DE60043425D1 (de) 1999-07-02 2000-06-27 Lautsprecherschutzsystem mit vom audiofrequenzband abhängiger leistungseinstellung

Country Status (7)

Country Link
US (1) US6865274B1 (de)
EP (1) EP1145593B1 (de)
JP (1) JP4416367B2 (de)
KR (1) KR100886575B1 (de)
CN (1) CN1185908C (de)
DE (1) DE60043425D1 (de)
WO (1) WO2001003466A2 (de)

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US7013011B1 (en) * 2001-12-28 2006-03-14 Plantronics, Inc. Audio limiting circuit
US7072477B1 (en) * 2002-07-09 2006-07-04 Apple Computer, Inc. Method and apparatus for automatically normalizing a perceived volume level in a digitally encoded file
KR20060093722A (ko) * 2003-10-24 2006-08-25 코닌클리케 필립스 일렉트로닉스 엔.브이. 적응성 사운드 재생
US7372966B2 (en) 2004-03-19 2008-05-13 Nokia Corporation System for limiting loudspeaker displacement
KR101158709B1 (ko) * 2004-09-06 2012-06-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 신호 강화
JP2009509377A (ja) * 2005-09-20 2009-03-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音声変換システム
US8019088B2 (en) * 2007-01-23 2011-09-13 Audyssey Laboratories, Inc. Low-frequency range extension and protection system for loudspeakers
DE102007032281A1 (de) * 2007-07-11 2009-01-15 Austriamicrosystems Ag Wiedergabeeinrichtung und Verfahren zum Steuern einer Wiedergabeeinrichtung
US8712065B2 (en) 2008-04-29 2014-04-29 Bang & Olufsen Icepower A/S Transducer displacement protection
KR20100031422A (ko) * 2008-09-12 2010-03-22 삼성전자주식회사 영상처리장치 및 그 제어방법
CA2750241C (en) * 2009-01-20 2015-06-16 Widex A/S A hearing aid and a method of detecting and attenuating transients
US20100215193A1 (en) * 2009-02-25 2010-08-26 Conexant Systems, Inc. Speaker Distortion Deduction System and Method
WO2011076288A1 (en) * 2009-12-24 2011-06-30 Nokia Corporation Loudspeaker protection apparatus and method thereof
EP2357726B1 (de) * 2010-02-10 2016-07-06 Nxp B.V. System und Verfahren zur Anpassung eines Lautsprechersignals
US8194869B2 (en) * 2010-03-17 2012-06-05 Harman International Industries, Incorporated Audio power management system
US8855322B2 (en) * 2011-01-12 2014-10-07 Qualcomm Incorporated Loudness maximization with constrained loudspeaker excursion
EP2541970B1 (de) 2011-06-29 2014-01-01 ST-Ericsson SA Vorfilterung zum Lautsprecherschutz
US8983080B2 (en) * 2011-07-22 2015-03-17 Texas Instruments Incorporated Method and system for temperature protection of a speaker
US20130077795A1 (en) * 2011-09-28 2013-03-28 Texas Instruments Incorporated Over-Excursion Protection for Loudspeakers
EP2642769B1 (de) * 2012-03-20 2017-12-13 Nxp B.V. Lautsprecheransteuerung zur Bestimmung der Lautsprechereigenschaften und/oder -diagnose
US10200000B2 (en) 2012-03-27 2019-02-05 Htc Corporation Handheld electronic apparatus, sound producing system and control method of sound producing thereof
US9614489B2 (en) 2012-03-27 2017-04-04 Htc Corporation Sound producing system and audio amplifying method thereof
WO2013183103A1 (ja) 2012-06-04 2013-12-12 三菱電機株式会社 周波数特性変形装置
DE112012006458B4 (de) * 2012-06-04 2022-08-11 Mitsubishi Electric Corporation Signalverarbeitungsvorrichtung
EP2712209B1 (de) * 2012-09-21 2021-01-13 Dialog Semiconductor BV Verfahren und Vorrichtung zur Berechung metrischer Werte für Lautsprecherschutz
DE102012020271A1 (de) 2012-10-17 2014-04-17 Wolfgang Klippel Anordnung und Verfahren zur Steuerung von Wandlern
US9247342B2 (en) 2013-05-14 2016-01-26 James J. Croft, III Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output
KR101573577B1 (ko) * 2013-10-08 2015-12-01 현대자동차주식회사 음원 출력 제어 장치 및 방법
TWI543638B (zh) * 2014-01-28 2016-07-21 宏達國際電子股份有限公司 聲音產生系統和其音頻放大的方法
US9967663B2 (en) * 2014-12-24 2018-05-08 Texas Instruments Incorporated Loudspeaker protection against excessive excursion
GB2534949B (en) * 2015-02-02 2017-05-10 Cirrus Logic Int Semiconductor Ltd Loudspeaker protection
EP3089364B1 (de) 2015-05-01 2019-01-16 Nxp B.V. Verstärkungsfunktionssteuerung
EP3171614B1 (de) * 2015-11-23 2020-11-04 Goodix Technology (HK) Company Limited Steuerung für ein audiosystem
US10614790B2 (en) * 2017-03-30 2020-04-07 Bose Corporation Automatic gain control in an active noise reduction (ANR) signal flow path
US10911869B2 (en) 2017-04-19 2021-02-02 Dolby Laboratories Licensing Corporation Variable-frequency sliding band equalization for controlling sealed loudspeaker excursion
US10264355B2 (en) 2017-06-02 2019-04-16 Apple Inc. Loudspeaker cabinet with thermal and power mitigation control effort
JP7020244B2 (ja) * 2018-03-30 2022-02-16 カシオ計算機株式会社 スピーカ装置及び電子機器
US11184706B2 (en) 2018-05-18 2021-11-23 Dolby Laboratories Licensing Corporation Loudspeaker excursion protection
DE102018213834B3 (de) 2018-07-02 2020-01-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur modifizierung eines lautsprechersignals zur vermeidung einer membranüberauslenkung
US10897670B1 (en) * 2018-10-31 2021-01-19 Amazon Technologies, Inc. Excursion and thermal management for audio output devices
CN114221596B (zh) * 2021-12-22 2023-12-22 歌尔股份有限公司 基于马达的振感调整方法、设备和计算机可读存储介质

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US4454609A (en) * 1981-10-05 1984-06-12 Signatron, Inc. Speech intelligibility enhancement
JPS60126998A (ja) * 1983-12-13 1985-07-06 Matsushita Electric Ind Co Ltd ハウリング抑圧装置
JPH0632535B2 (ja) * 1984-02-21 1994-04-27 松下電器産業株式会社 ハウリング抑圧装置
US4583245A (en) * 1984-06-14 1986-04-15 Renkus-Heinz, Inc. Speaker system protection circuit
NL8600406A (nl) * 1986-02-18 1987-09-16 Philips Nv Automatisch geregeld versterkerstelsel.
US4944015A (en) * 1988-04-29 1990-07-24 Juve Ronald A Audio compression circuit for television audio signals
US4887298A (en) * 1988-06-15 1989-12-12 Renkus-Heinz Electronic circuit for sensing disconnect or failure of a power output sense line in an audio power system
DE4336609A1 (de) * 1993-10-27 1995-05-04 Klippel Wolfgang Prädikative Schutzschaltung für elektroakustische Schallsender
US5548650A (en) * 1994-10-18 1996-08-20 Prince Corporation Speaker excursion control system
DE19547093A1 (de) * 1995-12-16 1997-06-19 Nokia Deutschland Gmbh Schaltungsanordnung zur Verbesserung des Störabstandes
JPH09258782A (ja) * 1996-03-08 1997-10-03 Sony United Kingdom Ltd デジタル音声処理装置
JP3152160B2 (ja) * 1996-11-13 2001-04-03 ヤマハ株式会社 ハウリング検出防止回路及びそれを用いた拡声装置

Also Published As

Publication number Publication date
CN1348673A (zh) 2002-05-08
JP4416367B2 (ja) 2010-02-17
EP1145593B1 (de) 2009-12-02
EP1145593A2 (de) 2001-10-17
WO2001003466A2 (en) 2001-01-11
KR20010074930A (ko) 2001-08-09
KR100886575B1 (ko) 2009-03-05
US6865274B1 (en) 2005-03-08
CN1185908C (zh) 2005-01-19
WO2001003466A3 (en) 2001-05-17
JP2003503989A (ja) 2003-01-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition